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69 commits

Author SHA1 Message Date
Daniel Han
4c72e09480
Studio: stop handing CI/user secrets to downloaded llama.cpp binaries (#6696)
* Studio: stop handing CI/user secrets to downloaded llama.cpp binaries

The macOS prebuilt path installs llama.cpp from the unslothai/llama.cpp
fork's latest (unpinned, mutable) release and then executes the
downloaded llama-server / llama-quantize binaries during install-time
validation. binary_env() built that child environment from a full
os.environ.copy(), so a compromised or tampered prebuilt would inherit
every secret in the process: HF_TOKEN and the workflow GitHub tokens in
CI, and HF / cloud credentials for end users running install.sh /
setup.sh.

We publish prebuilts daily, so pinning a release tag is not workable.
Instead, neutralise the impact: these binaries have no reason to read any
token, so strip secret-bearing variables (exact names plus
TOKEN/SECRET/PASSWORD/CREDENTIAL/PRIVATE_KEY/API_KEY markers) before
handing the env to a downloaded binary. The installer's own GitHub and
Hugging Face API calls read os.environ directly, so authentication and
release-API rate limiting are unaffected; PATH, LD_LIBRARY_PATH,
DYLD_LIBRARY_PATH and CUDA/ROCm vars are preserved. One change covers the
install-time validation path for all six macOS workflows and end users.

Follow-up (separate, sequenced): publish build-provenance attestations
from the fork's prebuilt workflows and verify them in CI, so a forged
release is rejected rather than merely starved of secrets.

* Strip KUBECONFIG, SSH_AUTH_SOCK, and PASSPHRASE-marked vars from binary env

Extend the deny-list per PR review: KUBECONFIG and SSH_AUTH_SOCK are
credential pointers/capabilities a downloaded binary never needs, and a
PASSPHRASE marker catches SSH_PASSPHRASE / GPG_PASSPHRASE. Tests updated.

* Studio: also scrub proxy/index env vars and URL-embedded credentials before running prebuilt binaries

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Scope mlx-ci secrets to the install + download commands for PR #6696

Drop the ambient step-level env block and pass GH/GITHUB/HF tokens only
on the installer and GGUF-download commands, so the directly invoked
llama-quantize / llama-server smoke runs see no secrets. The installer
still reads tokens from os.environ for the releases API and probe fetch.

* Trim verbose comments around the secret-env scrubber for PR #6696

Comment-only: condense the block comments added across this PR. Logic
unchanged (comment_tools.py check confirms code-only signature equal).

* Redirect HOME / cache pointers to an empty dir for prebuilt binaries (PR #6696)

Address Codex P2: stripping token env vars still let a tampered binary
read on-disk token stores (~/.cache/huggingface/token, ~/.aws/credentials,
~/.config/gh) through $HOME and the cache/config pointers. Point HOME plus
the HF / XDG / Windows home pointers at a single empty throwaway dir for
the downloaded-binary env. Defense in depth: a binary resolving the real
home via getpwuid is out of scope and needs OS sandboxing.

* Close residual credential-probe gaps for PR #6696

Address the latest Codex review:
- Strip token-only URL userinfo too (scheme://ghp_token@host), not just
  the user:pass form.
- Redirect HOMEDRIVE/HOMEPATH alongside USERPROFILE so a Windows binary
  cannot reconstruct the real profile from %HOMEDRIVE%%HOMEPATH%.
- Drop explicit credential-file pointers (NETRC, PIP_CONFIG_FILE,
  DOCKER_CONFIG, GIT_CONFIG_GLOBAL) that live outside HOME.
- Probe ldd with a secret-free env: linux_runtime_dirs ran ldd on the
  untrusted prebuilt with the inherited os.environ, and ldd may execute
  the binary, so it could observe HF_TOKEN/GITHUB_TOKEN during the probe.

Factored the shared scrub into secret_free_environ().

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Separate token-bearing install from binary smoke; drop CI command files (PR #6696)

Address the two P1s in the latest review:
- mlx-ci: GitHub bakes secrets into the run-script text, so inline token
  assignments in a step that later runs the prebuilt let a tampered binary
  read them from the script. Split into a token-bearing install + download
  step that never launches a binary, and a secret-free smoke step that runs
  llama-quantize / llama-server.
- secret_free_environ now drops the GitHub Actions command files
  (GITHUB_ENV, GITHUB_PATH, GITHUB_OUTPUT, GITHUB_STEP_SUMMARY, BASH_ENV) and
  the smoke step unsets them, so a tampered prebuilt cannot inject PATH/env
  into the later token-bearing MLX steps.

* Run the prebuilt smoke last, after all token-bearing steps (PR #6696)

Address the P1 workspace-poisoning vector: even with no secrets in its env,
a tampered prebuilt could edit the checkout or installed modules, and the
later HF_TOKEN MLX steps would then execute that poisoned code on push
builds. Move the prebuilt install + smoke to the end of the job so the
untrusted binary runs after every token-bearing step, leaving nothing for it
to corrupt. The MLX GGUF reload uses a source-built llama-cli, not this
prebuilt, so nothing depends on the earlier position.

* Trim comments around the secret-env scrubber and prebuilt CI steps (PR #6696)

Comment-only: condense the security-rationale block comments and merge the
duplicated prebuilt-step description in mlx-ci. Logic unchanged
(comment_tools.py check confirms the code-only signature is equal; install
suite still passes).

* Authenticate the GGUF export release-API lookup with the read-only GITHUB_TOKEN (PR #6696)

* Rename env scrubber off the secret-named identifier CodeQL flags as a clear-text sink (PR #6696)

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-06-27 05:21:05 -07:00
Daniel Han
bd2438ea65
Verify DiffusionGemma visual-server binary against approved checksums (#6635)
ensure_diffusion_visual_server() downloaded the visual-server release
asset with the unverified download_file() and marked it executable,
bypassing the approved-checksum manifest that gates every other prebuilt
llama.cpp artifact. The backend later auto-discovers that binary and
launches it through DG_VISUAL_BIN, so a compromised or substituted
release asset could place attacker-controlled native code in the install
tree and have it executed under the Studio user.

Require the matched asset to be present in the approved checksum manifest
and download it through download_file_verified() with the published
sha256. A name-matching asset that is absent from the manifest is refused
rather than executed.

Add regression tests covering the verified-download path and the refusal
of an unapproved asset.
2026-06-24 06:37:41 -07:00
Daniel Han
21bdc8fa8c
Studio: treat data-center Blackwell (sm_100/sm_103) as Blackwell in llama.cpp prebuilt selection (#6584)
* Studio: treat data-center Blackwell (sm_100/sm_103) as Blackwell in llama.cpp prebuilt selection

_host_is_blackwell gated on _BLACKWELL_MIN_SM = 120, but data-center Blackwell
parts report a lower compute capability than consumer Blackwell: B100/B200 are
sm_100 and B300/GB300 are sm_103, while RTX 50 is sm_120 and DGX Spark is
sm_121. Because 100 and 103 are both < 120, every data-center Blackwell host was
classified as non-Blackwell, so two GPU-targeting paths never fired for a
B200/B300:

  - the Linux blackwell_runtime_override that prefers the highest CUDA-major
    runtime line shipping a bundle covering the host SMs (so a cu12x torch could
    pin a cuda12 bundle over a native cuda13 one), and
  - _drop_blackwell_incapable_windows_cuda, which removes cuda-12.4 builds that
    load and validate but run Blackwell on a slow PTX-JIT path.

The result is a B200/B300 being handed a prebuilt that does not natively offload
its SM, i.e. the llama.cpp prebuilt is not really for the GPU. The Blackwell
floor is sm_100, so set _BLACKWELL_MIN_SM = 100. The toolkit floor (12.8) is
unchanged and already correct for sm_100/sm_103.

Surfaced loading unsloth/GLM-5.2-GGUF UD-IQ1_S on 8x B200.

Adds tests covering the sm_100/sm_103 classification, the Linux cuda13
preference for a data-center host, and the Windows cuda-12.4 drop.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Trim comments to be succinct (no behavior change)

* studio: require CUDA 12.9 for sm_103/sm_121 Blackwell prebuilts

sm_103 (B300/GB300) and sm_121 (DGX Spark) have no native compiler
target before CUDA 12.9; the family floor of 12.8 only covers
sm_100/101/120. Make the Windows-CUDA Blackwell filter SM-aware so a
legacy win-cuda-12.8 bundle is dropped on an sm_103/sm_121 host while
sm_100/sm_120 hosts keep the 12.8 floor.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-06-23 05:15:09 -07:00
Daniel Han
e83d4ae072
Windows installer: fix DiskPart UAC mid-install, drive-root cache, and spurious unsloth.exe rename warning (#6296)
* Windows installer: fix DiskPart UAC, drive-root cache, spurious rename warning, CPU-base messaging

amd-smi gate (DiskPart UAC mid-install): the AMD torch wheel ships hipInfo.exe
inside the venv, and the bitsandbytes fix prepends that venv Scripts dir to PATH.
shutil.which("hipinfo") then found it and flipped _amd_smi_allowed() to True, so
the post-install AMD probe fell through to `amd-smi list` (the venv hipInfo failed
to report gcnArchName, which is why the arch came from the GPU-name table) and
amd-smi elevated, popping the DiskPart UAC. Fix: a hipinfo resolved inside the
active venv (sys.prefix) is the torch-wheel binary, not a HIP SDK, and must not
open the gate. Mirrored in install_python_stack.py, install_llama_prebuilt.py, and
backend utils/hardware/amd.py (the runtime VRAM poller had the same latent prompt).

TORCHINDUCTOR_CACHE_DIR: move from C:\tc to <StudioHome>\TORCHINDUCTOR_CACHE_DIR so
the inductor/Triton cache lives under the user's Studio home, not the system drive
root. Long paths are already enabled above so deep inductor paths still fit.

unsloth.exe rename: skip the rename (and its "pip may fail with WinError 32"
warning) when SKIP_STUDIO_BASE=1. In the install.ps1 flow base packages are not
reinstalled, so unsloth.exe is never rewritten; the self-rename only failed because
setup runs via unsloth.exe (the running launcher holds its own file). The
'studio update' flow still attempts it.

CPU PyTorch messaging: clarify that the CPU base is temporary and setup replaces it
with GPU ROCm wheels, and print an explicit "GPU ROCm PyTorch installed" line after
the AMD wheels land, so the log makes clear the final install is GPU-accelerated.

Adds two regression tests covering the venv-internal vs external hipInfo gate.

Verified end-to-end on a Strix Halo box (Radeon 8060S / gfx1151): install.ps1
--local from this branch completed exit 0 with no DiskPart prompt, no rename
warning, the cache under the Studio home, and "GPU ROCm PyTorch installed
(gfx1151)"; Studio then booted and detected "ROCm (HIP 7.13.99004) -- AMD Radeon
8060S Graphics".

* Windows installer: drop the unreliable unsloth.exe rename and its WinError 32 warning

setup.ps1 used to rename the running unsloth.exe out of the way before the
base-package upgrade so pip could replace it. That rename never actually
worked: setup runs *via* unsloth.exe, so renaming our own running
uv-trampoline launcher failed with a sharing violation (WinError 32) and only
printed a scary 'could not rename unsloth.exe; pip may fail with WinError 32'
warning on every Windows install and update.

It also was not needed. pip tolerates a running/locked console-script .exe: it
moves the old one aside and writes the new one. The base upgrade routes through
pip on Windows, so the upgrade succeeds (or, in the install.ps1 flow with
SKIP_STUDIO_BASE=1, the base is not touched at all) and unsloth.exe is left
intact either way.

Removing the rename block and its failed-install restore block removes the
false warning for all Windows devices in both the install and update flows.

* Windows installer: gate venv-internal hipInfo.exe in PowerShell amd-smi probe; harden venv path checks

Follow-up to PR #6296.

- install.ps1 and setup.ps1: ignore the AMD torch wheel hipInfo.exe that lives
  inside the Studio venv when probing for a HIP SDK, so amd-smi no longer reopens
  the DiskPart UAC during install/update. Mirrors _path_inside_venv in the Python
  installers, which already do this.
- amd.py, install_llama_prebuilt.py, install_python_stack.py: normcase the venv
  containment check (Windows paths are case-insensitive) and run the
  HIP_PATH/ROCM_PATH candidate through it too.
- setup.ps1: fall back to a short TORCHINDUCTOR cache dir when long paths are
  unavailable, and create the dir wildcard-safely.
- tests: isolate sys.prefix in the gate helper, add HIP_PATH/ROCM_PATH cases, and
  assert the PowerShell venv exclusion.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Windows installer: install ROCm PyTorch directly for a known AMD arch

When the GPU arch is known (name-inferred from the GPU-name table) but ROCm
could not be probe-verified (no HIP SDK, no amd-smi), the bootstrap installed
a CPU PyTorch base that setup.ps1 then force-reinstalled as ROCm. The
repo.amd.com wheels bundle their own runtime (no HIP SDK required), which
setup.ps1 already relies on, so the CPU base was a pure wasted download/install.

- Gate the ROCm index on a known arch, not only on probe-verified ROCm, so a
  mapped arch installs ROCm torch directly. Unmapped arches and no-GPU hosts
  still get CPU (unchanged).
- Fall back to a CPU base if the ROCm-index install fails, so a transient
  repo.amd.com outage does not abort the install (setup.ps1 retries ROCm).
- Correct the stale comment that claimed ROCm wheels need a confirmed HIP SDK.
- Add a regression test for the arch-based gate.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Windows installer: correct the unsloth.exe rename-removal comment

The comment claimed the base upgrade 'routes through pip on Windows' and that
pip 'moves the old unsloth.exe aside, then writes the new one'. That is not what
the code does. install_python_stack tries uv first; on a locked launcher uv
aborts and falls back to pip, but the pip fallback strips --upgrade-package and
base.txt lists only bare unsloth/unsloth-zoo, so pip finds them already
satisfied and no-ops. The running unsloth.exe is left intact at its current
version either way. Reword the comment to describe the real uv-first /
pip-fallback-no-op behavior. No functional change.

* Windows installer: close two gaps in the venv-internal hipinfo exclusion

Review follow-up. The amd-smi/DiskPart gate could still reopen in two cases:

- setup.ps1 ran the HIP probe long before $VenvDir is assigned, so without
  VIRTUAL_ENV (the `unsloth studio update` path) $venvRoots was empty and the
  venv-internal hipInfo.exe was not recognized. Seed the venv root from
  UNSLOTH_SETUP_PYTHON and the default Studio home too (both installers).
- The HIP_PATH/ROCM_PATH candidate was accepted without the venv filter, so an
  env var pointing into the venv (AMD wheel) still set $HipSdkInstalled. Run
  Test-HipinfoIsVenvInternal on the candidate as well (both installers).

Extend the PS gate test to assert both. Both .ps1 parse clean; install tests
pass (the venv-internal / HIP probe coverage at 359 passed).

* Windows installer: correct the CPU-base message for arches with no ROCm wheels

After gating the ROCm index on a known arch, a mapped arch sets $ROCmIndexUrl
and installs ROCm directly, so it no longer reaches the "temporary CPU base"
branch. That branch is now reached only by a name-inferred arch with no ROCm
wheels (e.g. RDNA2 gfx103X), where setup.ps1 does NOT install ROCm. The old
text ("setup replaces it with GPU ROCm wheels ... the final install IS
GPU-accelerated") was therefore always wrong there. Say plainly that PyTorch
stays on CPU for this GPU.

* Windows installer: seed the venv-internal hipInfo check from a custom Studio home

Test-HipinfoIsVenvInternal seeded the venv root from VIRTUAL_ENV, VenvDir, the
setup python, and the default %USERPROFILE% path only. A standalone
`unsloth studio update` with a custom UNSLOTH_STUDIO_HOME (or STUDIO_HOME alias)
and none of those set would not recognize the venv hipInfo on PATH, reopening the
amd-smi/DiskPart gate. Seed the custom home too, in both installers, and assert
it in the gate test.

* Studio installer: resolve venv aliases and expand ~ in the hipInfo venv filter

Two review points on the amd-smi/DiskPart UAC gate:

1. _path_inside_venv compared os.path.abspath of sys.prefix and the hipInfo
   path, which does not resolve symlinks, junctions, or 8.3 short names. A venv
   reached through an aliased path then fails the check, so its bundled
   hipInfo.exe is mistaken for an external HIP SDK and amd-smi runs (the
   DiskPart prompt this fix exists to suppress). Switch to os.path.realpath in
   all three copies (amd.py, install_llama_prebuilt.py, install_python_stack.py).

2. setup.ps1's early venv-internal hipInfo probe seeded the venv root from a
   custom Studio home (UNSLOTH_STUDIO_HOME / STUDIO_HOME) without expanding a
   leading ~, while the canonical resolver does. With a tilde form,
   [IO.Path]::GetFullPath kept the literal ~ relative to cwd, so the custom-home
   hipInfo escaped the filter and reopened the gate. Expand ~ in the probe the
   same way as the resolver.

tests/studio/install/test_pr5940_followups.py: 30 passed (adds a symlink
realpath case and a setup.ps1 tilde-expansion guard).

* Studio installer: mirror the hipInfo venv filter and ROCm wheel pins into install.ps1

Follow-up review on the same install.ps1 paths:

1. install.ps1's venv-internal hipInfo probe (Test-HipinfoIsVenvInternal)
   seeded the venv root from a custom Studio home without expanding a leading
   ~, unlike the canonical resolver and setup.ps1. A tilde form left
   [IO.Path]::GetFullPath with the literal ~ (relative to cwd), so the
   custom-home hipInfo escaped the filter and reopened the amd-smi/DiskPart
   gate. Expand ~ in the probe, matching the setup.ps1 fix.

2. The AMD ROCm path installed torchvision/torchaudio bare while pinning torch
   to below 2.12. AMD's per-arch index publishes the companions independently
   and may ship torchvision 0.27 (for torch 2.12) before removing 0.26, so a
   bare resolve can pick an ABI-incompatible set and fall back to CPU. Add
   torchvision/torchaudio floor maps and pass the pinned specs, mirroring
   setup.ps1 and install_python_stack.py.

3. The ROCm-to-CPU fallback torch install used Invoke-InstallCommand (no
   retry), the only torch step in the file without it. Switch to
   Invoke-InstallCommandRetry so the recovery path survives a transient index
   failure.

tests/studio/install/test_pr5940_followups.py: 33 passed (parametrized tilde
check over both installers, a torch/companion floor-map parity test, and a
CPU-fallback retry guard).

* Studio installer: scan all PATH hipinfo so the venv copy can't shadow a real HIP SDK

The amd-smi HIP-SDK probe used shutil.which("hipinfo") / Get-Command hipinfo,
which return only the first hit on PATH. The AMD torch wheel ships hipInfo.exe
inside the venv and the bnb fix (plus the Studio backend) prepend the venv
Scripts dir to PATH, so that venv-internal copy lands first. When a real HIP SDK
hipinfo sits later on PATH with HIP_PATH/ROCM_PATH unset, the first-hit probe
stopped at the venv copy, treated it as "not a HIP SDK", and closed the amd-smi
gate -- AMD users in that PATH-only SDK setup lost amd-smi telemetry and could
fall back to CPU. Scan every PATH entry and keep the first hipinfo that is not
venv-internal; only the venv copy is ignored, so the UAC/DiskPart suppression is
unchanged.

Applied to all three Python copies (install_llama_prebuilt.py,
install_python_stack.py, backend/utils/hardware/amd.py) via a new
_external_hipinfo_on_path helper, and both PowerShell callers (install.ps1,
setup.ps1) now use Get-Command hipinfo -All filtered by Test-HipinfoIsVenvInternal.

tests/studio/install/test_pr5940_followups.py: 36 passed (real-PATH scan tests, a
shadow-regression test for the exact venv-first ordering, and a parity check that
every Python copy uses the scanning helper).

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio uninstallers: fix leftovers (false "removed", shared icon, llama lock)

Auditing a dual native+WSL uninstall on a real device surfaced three leftovers:

1. uninstall.ps1 removed the data dir (which holds unsloth.ico) before the
   shortcuts that reference that icon, so Explorer's icon cache briefly held it
   open. Remove-Item -Recurse reported success yet left the locked file, and the
   dir was never re-attempted, so it orphaned with a false "removed" log.
   _RemovePath now verifies the path is actually gone (retrying transient locks)
   and reports honestly, and the data dir is re-swept after the shortcuts go.

2. install.sh writes a shared unsloth.ico to %LOCALAPPDATA%\Unsloth Studio for
   the WSL shortcut, but uninstall.sh never removed it, orphaning the icon (and
   dir) after a WSL uninstall. uninstall.sh now drops that icon and the dir when
   empty, in both the powershell.exe and drvfs-fallback paths.

3. ~/.unsloth/.llama.cpp.install.lock was never removed, so the rmdir of
   ~/.unsloth failed and the dir lingered. Both uninstallers now remove the lock.

Verified by running both uninstallers on a real dual install: device fully clean
(no install dirs, shortcuts, PATH/registry entries, shared icon, or lock left).

* install.sh: auto-route Strix Halo WSL to an existing Ubuntu 24.04

ROCm-on-WSL is the GPU runtime for Strix Halo and only targets Ubuntu
24.04. When the installer runs in a newer default distro (e.g. 26.04) it
cannot enable the GPU and silently falls back to CPU. If a 24.04 distro
already exists, re-run the install there and stop in the current one so the
GPU path is taken without the user having to know about the distro
requirement.

Runs before venv creation so the wrong distro is left untouched, guards
against re-route loops via UNSLOTH_WSL_REROUTED, leaves a working ROCm
distro alone (librocdxg present), and skips the GGUF-only / opt-out /
non-Strix cases. When no 24.04 distro exists we keep today's behaviour:
continue to CPU and print the `wsl --install Ubuntu-24.04` guidance, never
auto-downloading a distro.

Adds tests/sh/test_strixhalo_wsl_reroute.sh (hermetic: extracts the
function, rewrites its paths to fixtures, mocks wsl.exe) covering the full
decision matrix, wired into tests/run_all.sh.

* uninstall.ps1: keep shared unsloth.ico for a surviving WSL shortcut

A dual native+WSL install shares %LOCALAPPDATA%\Unsloth Studio\unsloth.ico:
install.sh points the WSL shortcut's icon there while the native install owns the
dir. The native uninstaller removed the whole dir unconditionally, so uninstalling
native while keeping WSL left the WSL shortcut with a blank icon. The old code only
avoided this when Explorer happened to hold the icon open, which is unreliable; on a
real dual install the dir was deleted and the WSL shortcut went blank.

_RemoveDataDirKeepingWslIcon now scans the Start Menu + Desktop for a surviving
"Unsloth Studio (WSL ...).lnk" and, if found, removes everything in the data dir
except unsloth.ico (keeping the dir) instead of deleting it; with no WSL shortcut it
removes the dir as before. uninstall.sh still drops the icon and the empty dir when
WSL itself is uninstalled, so every uninstall order ends clean.

Adds tests/studio/test_uninstall_dual_install_icon.ps1 (AST-extracts the helper and
runs it against a temp dir with controlled shortcut dirs) covering the dual,
native-only, empty, and missing-dir cases, wired into the windows-inference smoke
workflow. Verified on a real dual install: native uninstall now keeps unsloth.ico
and the WSL shortcut's icon stays intact.

* installer: condense AMD/ROCm code comments (no behavior change)

Tighten the comments added for the Strix Halo native+WSL installer work so
they are shorter and clearer without losing intent: the venv-internal hipInfo
amd-smi gate, the ROCm torch/companion floor maps, the WSL 24.04 reroute, and
the dual-install uninstall icon handling. Comment-only; code paths unchanged.
107 insertions, 166 deletions across 11 files.

* install.sh: run the Strix Halo WSL reroute before any STUDIO_HOME write

The reroute fired after mkdir -p "$STUDIO_HOME" and the legacy-venv migration,
so rerouting 26.04 -> 24.04 left an empty ~/.unsloth/studio stub in the origin
distro (and ran venv migration in the distro about to be abandoned). Move the
reroute ahead of the venv section so the origin distro is left untouched, matching
the function's own comment. Behavior is identical on every non-reroute path.

* installer: fix ROCm CPU-fallback, hipinfo gate edge cases, uninstall icon, WSL 22.04

- install.ps1: clear $ROCmIndexUrl/$ROCmTorchFloor after the CPU fallback so the
  flavor-repair block does not retry the failed ROCm index and abort the install;
  pin the ROCm companion specs ($visionSpec/$audioSpec) in the repair path too.
- install.ps1 + setup.ps1: skip a bare drive root in Test-HipinfoIsVenvInternal so a
  non-venv UNSLOTH_SETUP_PYTHON does not match the whole drive; iterate
  HIP_PATH/HIP_PATH_57/ROCM_PATH and take the first non-venv hipinfo.
- amd.py, install_llama_prebuilt.py, install_python_stack.py: strip surrounding
  quotes from PATH entries before probing for hipinfo.
- install.sh: pipefail the WSL reroute curl|sh; do not reroute supported Ubuntu 22.04.
- uninstall.sh: keep the shared unsloth.ico while any Unsloth shortcut (native or
  another WSL distro) still references it, in both the powershell and drvfs paths.
- tests: regression coverage for all of the above.

* installer: forward reroute options, guard ROCm bootstrap, harden hipinfo gate

- install.sh: forward the caller's --package/--python/--verbose/--tauri and a custom
  UNSLOTH_STUDIO_HOME into the WSL reroute (was a bare default install); bail on
  --local; run the reroute BEFORE dependency/uv install so the origin distro is left
  untouched; set UNSLOTH_SKIP_ROCM_WSL_SETUP after a failed reroute so the later
  ROCm-on-WSL bootstrap does not install into the unsupported origin distro.
- install.ps1 + setup.ps1: Get-Command hipinfo -CommandType Application so only real
  executables match (not an alias/function named hipinfo).
- uninstall.ps1: guard $env:APPDATA when building the default shortcut search dirs.
- tests: cover option forwarding, --local bail, the bootstrap guard, and the gate change.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* installer: guard origin ROCm bootstrap on every CPU-only fallback; harden ~ expansion

WSL reroute: the no-wsl.exe, no-24.04-target and --local fallbacks all tell the
user the install continues CPU-only, but only the failed-reroute branch set
UNSLOTH_SKIP_ROCM_WSL_SETUP=1. The later _maybe_bootstrap_rocm_wsl gate keys off
that flag, so the other three branches could still install ROCm into the
unsupported origin distro (e.g. 26.04). Set the skip guard on all of them.

Forward UNSLOTH_ROCM_WSL_AUTO into the reroute so a Tauri/consented GPU bootstrap
carries through to the rerouted 24.04 child instead of dropping to the prompt path.

install.ps1/setup.ps1: guard the venv-probe ~ expansion on a non-empty
$env:USERPROFILE so Join-Path does not throw on a profile-less service account.

Tests: add no-wsl.exe and UNSLOTH_ROCM_WSL_AUTO reroute cases, the USERPROFILE
guard assertion, and route shell-test fixtures through a single trap-cleaned root.

* installer: pin + soften Windows ROCm Python repair, reroute to 22.04, harden gates

install_python_stack.py: the Windows AMD ROCm repair in _ensure_rocm_torch()
installed bare torch/torchvision/torchaudio via the fatal pip_install -- the same
asymmetry already fixed on the PowerShell side. A transient repo.amd.com failure
could abort the whole install even after install.ps1/setup.ps1 fell back to CPU.
Pin companions per-arch (gfx120X/Strix -> the rocm7.2 trio, mirroring the PS floor
maps) and make the retry nonfatal: keep the existing build and let the user re-run
update to retry ROCm, so the chain install.ps1 -> setup.ps1 -> stack stays CPU-safe.

install.sh: reroute now targets an installed Ubuntu 24.04 OR 22.04 (24.04 preferred);
both are AMD-supported for ROCm-on-WSL, matching the leave-alone set, so a box with
only 22.04 reaches the GPU instead of staying CPU-only.

install.ps1/setup.ps1: a bare ~ for UNSLOTH_STUDIO_HOME left an empty Join-Path child
(PS 5.1 throws); fall back to USERPROFILE directly and only join a real remainder.

_path_inside_venv (amd.py + both installers): guard a root-dir sys.prefix so commonpath
can't classify every path on the drive as venv-internal (defensive; venv never at root).

uninstall.sh: guard an empty LOCALAPPDATA in the PS-interop icon cleanup (mirror APPDATA).

Tests: add 22.04-target reroute cases, Windows ROCm pin+nonfatal coverage (text +
behavioral), root-dir guard coverage, and bare-~/LOCALAPPDATA guard assertions.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* install.sh: match WSL reroute target by exact distro name, not substring

The 24.04/22.04 reroute target was chosen with grep -F (substring), so a custom
distro such as 'Ubuntu-24.04-test' (with no exact Ubuntu-24.04) was picked as the
target; the later 'wsl -d Ubuntu-24.04' then fails and the Strix Halo install stays
CPU-only. Match whole lines (grep -ixF) and reuse the matched name so only a real
Ubuntu-24.04/22.04 is targeted. Adds substring-rejection + exact-vs-custom tests.

* install.sh: keep the WSL reroute target to Ubuntu 24.04 (helper-supported only)

The ROCm-on-WSL bootstrap (scripts/install_rocm_wsl_strixhalo.sh) dies on any
VERSION_ID other than 24.04 and pins the noble repo, so treating 22.04 as
GPU-supported let the parent report a successful reroute while the child fell
back to CPU. Drop 22.04 from the supported set and the reroute target list;
24.04 stays the sole target (keeping the exact whole-line distro match). An
already-working ROCm on any other version is still left alone by the librocdxg
check above.

tests: reroute 22.04 cases updated to the 24.04-only behavior; make the
"no wsl.exe" case hermetic so a real host wsl.exe can't leak in on dev boxes;
stop the tauri exit-order check from mis-flagging the reroute helper's
[ "$TAURI_MODE" = true ] && ... --tauri one-liner.

* installer: tighten comment wording across the Strix Halo install/uninstall paths

Condense the verbose multi-line comment blocks (amd-smi hipinfo gate, ROCm
torch install + CPU fallback, WSL reroute, uninstall icon-keep) into fewer,
clearer lines. Comments and a few docstrings only; no code, logic, or
behavior change. Verified with bash -n, the PowerShell parser, and ast.parse,
and the installer test suite still passes.

* add AGPL-3.0 SPDX headers to the .sh/.ps1 scripts missing them

Every shell and PowerShell script under the Studio/installer surface now
carries the standard SPDX-License-Identifier: AGPL-3.0-only + copyright
header (after the shebang where present): the installer (install.sh,
install.ps1), build.sh, the .github and src-tauri scripts, the installer
test suite, and the moe kernel test. Header-only, line endings preserved;
bash -n, the PowerShell parser, and the installer tests all pass.

* installer: drop the duplicate AGPL header from install.sh and install.ps1

Both already carry an SPDX-License-Identifier: AGPL-3.0-only header below
their usage comment block; the prior header pass added a second one at the
top because it only scanned the first few lines. Remove the duplicate so each
file keeps a single original header.

* installer: force-reinstall CPU fallback torch; propagate Tauri NEED_SUDO from reroute

install.ps1/setup.ps1: when the AMD ROCm wheel install fails and we fall back to a
CPU base, force-reinstall the torch/vision/audio triplet. A failed ROCm install can
leave an unpinned ROCm torch (e.g. 2.10.0+rocm on gfx110X/gfx90a) that still
satisfies the CPU torch>=2.4,<2.11.0 range, so without --force-reinstall uv keeps the
ROCm build and only swaps the companions -- a mismatched venv the flavor-repair block
won't fix. setup.ps1 scopes the forced reinstall to the ROCm-fallback path
() so the genuine CPU-only install stays fast.

install.sh: the Strix Halo WSL reroute treated every nonzero child exit as a reroute
failure and fell back to CPU. In --tauri mode the child uses exit 2 ([TAURI:NEED_SUDO])
to ask the desktop app to elevate for the target distro; capture the child's exit code
and propagate exit 2 in Tauri mode (the child already printed the NEED_SUDO line)
instead of masking it. CLI mode still falls back to CPU on a generic failure.

Tests: reroute Tauri exit-2 propagation (and non-Tauri CPU-fallback) cases;
run_func now preserves the child exit code; force-reinstall assertions for both
PowerShell installers.

Note: codex's _rr_q apostrophe finding is a false positive -- the helper already
emits POSIX-correct 'O'\''Brien' and round-trips under both sh and bash.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* setup.ps1: fix $cpuForce array collapse in the ROCm->CPU torch fallback

An if-expression assignment ($cpuForce = if ($ROCmCpuFallback) { @("--force-reinstall") })
collapses the single-element array to a scalar string, so @cpuForce splatting enumerated
it character-by-character into broken single-letter args (- - f o r c e ...), which made
uv/pip reject the install and aborted the whole Studio setup on the AMD ROCm->CPU fallback
path. Build $cpuForce as a real array assigned outside the if-expression so the splat passes
a single --force-reinstall arg. Genuine CPU-only installs stay fast (empty array, no flag).
Test now asserts the array-build form and rejects the if-expression form.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* uninstall: remove the isolated Node.js runtime (~/.unsloth/node)

The isolated Node.js runtime (install_node_prebuilt.py, added with the managed-Node
change) installs to ~/.unsloth/node in default mode -- a sibling of studio, so deleting
<studio> leaves it behind (~200MB orphaned after uninstall). Both uninstallers already
remove the other default-mode siblings (llama.cpp/.cache/.staging); add node alongside
them. uninstall.ps1 also adds it to the handle-lock sweep so a held node.exe can't block
the delete. Env/custom mode nests node under the custom root, removed with that root.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-06-22 03:09:08 -07:00
Daniel Han
378e33c8a5
Studio macOS: faster startup, MLX self-heal, drop obsolete prebuilt pins (#6494)
* Studio: defer llama.cpp update probes and self-heal MLX on macOS

Two macOS startup problems shared one root area in the FastAPI lifespan:

- The llama.cpp capability + freshness probes ran inline before the server
  yielded, so a cold/slow/flaky network on the GitHub freshness check blocked
  'Application startup complete' (~34s on CI, longer in the field). Move both
  probes to a daemon thread; app.state stays None until ready (status routes
  already re-probe at request time). Opt out with UNSLOTH_DISABLE_UPDATE_CHECK=1.

- Train and Export were greyed out because mlx/mlx-lm/mlx-vlm arrive only
  transitively and a resolver backtrack silently drops them, so CHAT_ONLY stayed
  true. Add utils/mlx_repair.py: when Apple Silicon is detected without MLX,
  reinstall mlx/mlx-lm/mlx-vlm by name on a daemon thread and re-run hardware
  detection (opt out UNSLOTH_DISABLE_MLX_AUTOREPAIR=1). Surface a chat_only_reason
  in /api/health plus a sidebar tooltip so a greyed Train/Export explains itself
  instead of failing silently.

* Studio: guard model defaults against a None model name

load_model_defaults(None) called model_name.lower() with no guard, raising
'Error loading model defaults for None' before any model is selected. Return
an empty dict for a falsy/non-str name.

* Studio: drop obsolete upstream macOS + Windows Blackwell prebuilt pins

Both pins worked around gaps in ggml-org upstream prebuilts, but Studio now
routes every GPU host and all of macOS to the unslothai/llama.cpp fork
(published_repo_for_host), which ships the needed bundles, so both pins are
dead code on the default install path:

- macOS b9415: macOS always routes to the fork (its own macOS bundles), and
  host_supports_macos_minos() is the backstop. The pin only fired under an
  explicit --published-repo ggml-org override.
- Windows Blackwell b9360: Windows-NVIDIA routes to the fork, whose
  windows-x64-cuda13 bundle covers Blackwell (manifest max_sm 120, toolkit
  13.3), so the pin's self-disable check makes it dormant on every default
  install; it could only activate under the same upstream override on a
  13.0-13.2 driver.

Remove the pin constants, functions, and call sites. Keep the Blackwell
capability detection (_drop_blackwell_incapable_windows_cuda, _host_is_blackwell,
_windows_cuda_attempt_covers_blackwell) that still drops a non-sm_120 cuda-12.4
build on a Blackwell host. After this, an explicit --published-repo ggml-org
override on a Blackwell 13.0-13.2 host loses its GPU fallback and lands on CPU;
the default fork path is unaffected. Update the install selection-logic and
macOS-compat unit tests for the new no-pin behavior.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: walk back deeper on the macOS upstream prebuilt path

After removing the b9415 macOS pin, the explicit --published-repo ggml-org
upstream path still used the default 2-release fallback, so a pre-macOS-26 host
behind a run of macOS-26-only builds would exhaust two too-new plans (minos is
only checked post-download) and drop to a source build before reaching a
loadable older release. Walk back as deep as the fork macOS path
(DEFAULT_MAX_MACOS_RELEASE_FALLBACKS), turning the removed static pin into
dynamic discovery. Addresses review feedback on the macOS upstream fallback.

* Studio: pin transformers during MLX self-heal so it cannot break Studio

mlx-lm/mlx-vlm declare transformers>=5, but the single-env install pins
transformers==4.57.6. The self-heal used --upgrade with no constraint, so it
could upgrade transformers in the live venv and break the rest of Studio just to
make import mlx.core pass. Pin transformers to the installed version via a
constraint file: the resolver either finds an mlx build compatible with it or
fails (we stay chat-only), never upgrading transformers underneath Studio.
Addresses review feedback on the MLX repair install.

* Studio: harden MLX self-heal against an unsupported mlx-vlm

Pinning transformers alone made uv backtrack mlx-vlm to 0.3.9 (below unsloth-zoo's
mlx-vlm>=0.4.4), which imports but breaks VLM Train/Export -- so the self-heal
could clear chat-only onto a broken stack. Mirror the main installer: set
UV_OVERRIDE=overrides-darwin-arm64.txt so a current mlx-vlm coexists with the
transformers pin, require the same minimum versions unsloth-zoo declares, and
gate/validate on a full mlx_stack_available() check (not a bare import) so an
old or partial stack stays chat-only. Addresses PR review.

* Studio: filter Blackwell-incapable CUDA in resolve_upstream_asset_choice

resolve_upstream_asset_choice returned the first windows-cuda choice unfiltered,
so a Blackwell host could be handed an sm_120-incapable cuda-12.4 build while the
sibling planners drop it. Apply _drop_blackwell_incapable_windows_cuda here too
and fall through to the CPU bundle on a Blackwell host with no capable GPU asset.
Addresses PR review.

* Studio: re-poll health so MLX self-heal reaches an open UI

The sidebar cached the initial /api/health, so a successful background MLX
self-heal (chat_only flips false) did not re-enable Train/Export until a manual
reload. While chat-only for the recoverable mlx_unavailable reason, re-poll
/api/health and stop once Train/Export become available. Addresses PR review.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: make the disabled Train/Export tooltip reachable

The greyed Train/Export items pass a tooltip explaining why (e.g. MLX missing),
but a disabled <button> fires no pointer events and SidebarMenuButton only showed
tooltips while collapsed, so the explanation never appeared. Wrap a disabled
button in a focusable span and show its tooltip while expanded too; enabled items
keep the collapsed-only behavior. Addresses PR review.

* Studio: gate Train/Export on the full MLX stack, not bare mlx.core

detect_hardware enabled MLX training whenever `import mlx.core` worked, but the
MLX self-heal (utils/mlx_repair) treats a stack without mlx-lm/mlx-vlm at the
versions unsloth-zoo requires as inadequate. That asymmetry let the UI enable
Train/Export on exactly the partial/backtracked stack the self-heal is trying to
repair (greyed-in-but-broken VLM export). Gate on the same mlx_stack_available()
criterion so a partial stack stays chat-only (reason mlx_unavailable) and the
background repair restores it. Addresses PR review.

* Fix MLX repair and health auth for PR #6494

* Fix macOS upstream prebuilt fallback for PR #6494

* Fix MLX stack validation for PR #6494

* Fix MLX self-heal validation for PR #6494

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Review fixes: isolate hardware-state test, robust transformers pin

- test_chat_only_reason.py: detect_hardware() assigns module globals directly,
  which monkeypatch does not revert; the autouse fixture now saves and restores
  DEVICE/CHAT_ONLY/CHAT_ONLY_REASON/IS_ROCM so a chat-only verdict here cannot
  leak into other backend tests (e.g. test_utils.py) on a GPU host.
- mlx_repair.py: read the transformers version from importlib.metadata instead of
  importing transformers, so the install pin is not silently dropped when
  transformers has valid metadata but fails to import.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix CI: model full MLX stack in dispatch tests, keep selection test offline

dispatch (macOS) job:
- detect_hardware now gates MLX on the full stack (mlx_stack_available imports
  mlx_lm/mlx_vlm and checks dist versions), so faking only mlx.core makes the
  apple_silicon_mlx profile resolve to CPU. The dispatch tests assert the routing
  decision when the stack IS usable, so model a complete stack:
  test_hardware_dispatch_matrix patches utils.mlx_repair.mlx_stack_available and
  test_is_mlx_dispatch_gate patches hardware._has_usable_mlx_stack. The stack
  predicate's own internals stay covered by test_mlx_repair.py.

Repo tests (CPU) job:
- test_no_cuda_attempt_on_published_path_for_13_1 fell through to a live
  github_release_assets() upstream fetch after the Blackwell filter dropped every
  published attempt, which the offline security scanner blocks. Stub that fetch so
  the walk-back deterministically finds no usable CUDA build and raises
  PrebuiltFallback without network.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Harden MLX self-heal: prepare transformers constraint inside the try

attempt_mlx_repair runs on a daemon thread, but _transformers_constraint_args was
called before the try. A failure there (e.g. tempfile.mkstemp on a full disk or a
bad TMPDIR) would propagate unhandled and silently kill the self-heal thread.
Move the call inside the try and initialize constraint_path so any such failure
is caught and leaves Studio chat-only instead of crashing the thread.

---------

Co-authored-by: Daniel Han <michaelhan2050@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: wasimysaid <wasimysdev@gmail.com>
2026-06-22 02:20:08 -07:00
Daniel Han
23a3d972bf
Studio: reach the published source asset when a mix build's commit 404s (#6314)
* Studio: reach the published source asset when a mix build's commit 404s

A llama.cpp "mix" prebuilt records a merge commit that is never pushed to
the fork, so the codeload/archive URLs for that commit 404. The merged
source tree is instead published as a release asset alongside the prebuilt
(llama.cpp-source-commit-<sha>.tar.gz). The installer resolves that asset
URL from the approved-checksums manifest, but when the manifest omits the
top-level repo/release_tag the URL resolves empty, hydration falls through
to the 404-ing commit archive, and the prebuilt install drops to a slow
source build (or fails outright).

Extract exact_source_asset_url() and resolve the asset's host and tag
defensively: the artifact's own repo, then the manifest repo, then the
source repo; and the manifest release tag, then the tag we actually
installed the prebuilt from (the source asset is its sibling on the same
release). Normal installs build the identical URL as before, so this only
adds a working fallback for the degenerate manifest.

Add unit coverage for the resolver, including the empty repo/release_tag
regressions.

* Studio: cover exact_source_asset_url through the real parser chain

Add TestExactSourceAssetUrl.test_resolves_through_real_parser_chain, which runs
parse_approved_release_checksums -> preferred_source_archive -> exact_source_asset_url
so a regression in the parser or source-selection wiring cannot pass while only the
hand-built helper unit tests stay green.
2026-06-18 05:59:42 -07:00
Daniel Han
77acea751c
Studio: prefer native cuda13 over torch's cuda12 line on Blackwell Linux hosts (#6379)
The Linux installer ordered its CUDA runtime-line attempts purely by torch's
reported CUDA major (preferred_runtime_line), so a Blackwell host running a
cu12x torch build hoisted cuda12 ahead of an available native cuda13 bundle.
This brings the Linux selector to parity with the existing Windows Blackwell
preference: on an sm_120 host, prefer the highest CUDA-major line that ships
a bundle covering every visible host SM, then fall back to the torch line.

Selection-time only. No external pin and no source build: in-release cuda13
bundles already cover sm_120, and the per-artifact SM filter still drops any
incapable bundle (cuda12-older / cuda13-older) and prevents fall-through to a
non-Blackwell build. The override is gated on _host_is_blackwell and only
reorders lines that are already detected and driver-compatible, so it never
forces cuda13 when its runtime libraries are absent or the driver is pre-13,
and non-Blackwell hosts keep the exact torch-preference behavior.

The runtime-line ranking only considers well-formed "cuda<major>" lines and
skips any malformed or future-format value (e.g. "cuda13.1") instead of
crashing the major sort, matching how the surrounding selector already
tolerates unknown lines.

Adds focused selection tests covering the override, the incapable-cuda13
skip, the cuda13-unavailable fallback, the non-Blackwell no-op, the
malformed-runtime_line skip, and cuda14 forward-compat.
2026-06-17 22:33:47 -07:00
oobabooga
a3ca5d2a5a
Studio: don't silently fall back to a CPU prebuilt on NVIDIA Linux GPU hosts (#6310) 2026-06-14 02:06:31 -03:00
Daniel Han
a8af0a1a4f
Fix llama.cpp prebuilt: skip already-installed same-release fallback (#6285)
* Fix llama.cpp prebuilt: skip the already-installed same-release fallback

install_prebuilt computes diffusion_visual_server_backfill_needed from the
newest candidate (plan.attempts[0]); when that is True it passed
existing_install_dir=None to validate_prebuilt_attempts, which disabled the
"existing install already matches this candidate" skip for the WHOLE plan. So
when the newest bundle failed validation the installer re-downloaded and
re-extracted an older fallback bundle that was already correctly installed.

Pass the real install dir always and gate the skip per-attempt: a matching
candidate is skipped unless that specific candidate still needs the
DiffusionGemma backfill re-extract.

Also make test_llama_cpp_search_roots_handles_studio_root_oserror read the full
_find_llama_server_binary / _kill_orphaned_servers method bodies instead of a
fixed 4000-char window. The except handler it asserts already exists, but the
function grew past the window so the guard silently failed; slicing to the next
sibling def keeps the check correct as the file grows.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: Daniel Han <michaelhan2050@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-06-12 23:56:55 -07:00
Daniel Han
d7dd5556bb
Studio: backfill the DiffusionGemma visual-server on a tag-matching update (#6267)
* Studio: backfill the DiffusionGemma visual-server on a tag-matching update

An install made before the visual-server entered the copy allowlist (#6254)
matches on tag yet lacks the binary, so the update skip never backfills it and
DiffusionGemma fails with "runner not found". Re-extract the bundle when a
matching install is missing it, gated to the fork bundles that ship it so
upstream installs never thrash and so it self-limits once the binary lands.

* Studio: make the visual-server backfill bypass the existing-install short-circuit

The tag-matching skip is checked twice: once in install_prebuilt and again
inside validate_prebuilt_attempts via existing_install_matches_choice, which
only compares metadata and primary executables, not the DiffusionGemma
visual-server. So a stale install missing that binary still raised
ExistingInstallSatisfied and skipped the reinstall. Pass existing_install_dir
as None when a backfill is needed so the bundle actually re-extracts.
2026-06-12 10:56:09 -07:00
oobabooga
5300c047b6
Installer: drop the lemonade ROCm fallback now the fork ships identical per-gfx prebuilts (#6225)
---------

Co-authored-by: Daniel Han <danielhanchen@gmail.com>
2026-06-12 11:53:26 -03:00
Michael Han
99704ffe47
Studio: project sources backed by RAG (#6205)
* Studio: make project sources work with RAG and polish project UI

Projects had a disabled Sources tab with an Add sources placeholder.
This wires it up end to end on top of the RAG engine:

- Add a project scope to the RAG store, ingestion and retrieval
- New endpoints: POST/GET /api/rag/projects/{id}/documents
- search_knowledge_base resolves kb, project and thread scopes; an
  explicit KB stays exclusive, project and thread scopes combine
- Multi-scope search: FTS uses scope IN (...), vec0 KNN runs per
  scope and merges by cosine score
- Lazy ALTER TABLE adds documents.project_id on existing databases
- Deleting a project also removes its indexed sources
- Sources tab now uploads with progress chips and drag and drop
- Chats inside a project auto-enable retrieval over project sources
  when the project has indexed documents (cached probe, no Docs pill
  needed); external providers still never receive rag_scope

UI polish:
- Rounder project cards with folder icon chip and softer shadow
- Project header icon in a rounded chip
- Chats/Sources pills and Add sources button without borders

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: match Add sources button shadow to the chat composer in light mode

* Studio: round project switcher hover pill and pad the folder icon

* Studio: remove border from project sources box

* Studio: grey hover on project cards and menu, move search into header, widen page spacing

* Studio: shorten sources copy, white header pills with composer shadow, fixed-width search, hub-size page headings

* Studio: align project landing blocks to the composer width

* Studio: restore muted background and flat look on projects header controls

* Studio: darker grey hover on project cards in light mode

* Studio: soften project card hover grey

* Studio: keep project card menu button visible while its menu is open

* Studio: drop focus outlines and rings on buttons and clickable icons, keep input focus styles

* Studio: address review feedback on project sources

- Remove uploaded files from disk when a project is deleted, confined
  to the uploads root
- 404 project uploads when the project does not exist, matching the KB
  endpoint
- Guard lexical search against an empty scope list
- Re-invalidate the project sources probe after uploads and removals
  settle so a chat sent mid-upload cannot cache a stale negative
- Keep keyboard focus rings: only mouse focus drops the Tailwind ring,
  the browser default outline stays removed

* Studio: add a green New badge to the project Sources tab

* Studio: unify New pills, fully round with soft emerald fill and no border

* Studio: a touch more vertical padding on New pills

* Fix project RAG source edge cases for PR #6205

* Fix duplicate RAG upload cleanup for PR #6205

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Lee Jackson <130007945+Imagineer99@users.noreply.github.com>
Co-authored-by: wasimysaid <wasimysdev@gmail.com>
2026-06-12 15:42:51 +02:00
Daniel Han
6c493b4076
Attach DiffusionGemma visual-server from the prebuilt bundle (#6254)
The prebuilt bundles ship llama-diffusion-gemma-visual-server, but
runtime_patterns_for_choice pruned it, so a fresh install never placed
it next to llama-server. ensure_diffusion_visual_server then found no
standalone release asset and skipped it, leaving Studio unable to serve
DiffusionGemma GGUFs natively (it required DG_VISUAL_BIN or a source
build). Keep the binary in the runtime allowlist on Linux, macOS and
Windows so it lands in build/bin and is activated automatically.
2026-06-12 06:26:35 -07:00
Daniel Han
90cb9499e8
Studio: serve DiffusionGemma with live in-place denoising and honest stats (#6250)
* Studio: serve DiffusionGemma GGUFs with the on-device visual decoder

* Studio: render the DiffusionGemma denoising canvas live in chat with honest stats

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: harden DiffusionGemma runner resolution (Windows .exe, build/bin lookup, clear stale audio flag, safe PYTHONPATH, Linux-only pdeathsig)

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-06-12 05:48:06 -07:00
Daniel Han
240c0c3500
Studio: fix WSL Strix Halo GPU on reinstall (ROCDXG drop-in + system HIP before bundle) (#6227)
* install.sh: persist ROCm-on-WSL drop-in even when rocminfo already works

_maybe_bootstrap_rocm_wsl calls _ensure_rocm_probe_env (which exports a
transient HSA_ENABLE_DXG_DETECTION + adds /opt/rocm/bin to PATH on the
installer process) right before the "rocminfo enumerates gfx1151 -> already
set up, return early" gate. On any reinstall over an existing /opt/rocm --
the common case, since the uninstaller keeps shared ROCm userspace but
removes /etc/profile.d/unsloth-rocm-wsl.sh -- that probe env makes rocminfo
succeed, so the gate returns 0 WITHOUT ever persisting the drop-in. The
transient env dies with the installer, so the next login shell (Studio,
llama-server) sees no GPU: torch cuda_avail=False, rocminfo finds nothing,
the llama.cpp ROCm prebuilt segfaults on a GPU it can't reach.

Factor the drop-in writer into _persist_rocm_wsl_dropin() and call it before
the early return so the persistent env is restored whenever librocdxg is
present. Idempotent (only writes when the drop-in is missing), gated on
librocdxg so it never fires on non-WSL/non-ROCDXG hosts, root-writes or
sudo-tees like before. The fast-path branch now reuses the same helper.

Reproduced on gfx1151 (Radeon 8060S) under dash (the curl|sh shell):
before the fix a reinstall left the drop-in absent and torch cuda_avail
False; after, the drop-in is persisted and a fresh login shell reports
cuda_avail True. Verified under both dash and bash, and idempotent on
re-run.

* Studio WSL: load system HIP before a prebuilt's bundled runtime (gfx1151)

The lemonade / published llama.cpp ROCm prebuilts bundle their own HIP
runtime (libamdhip64) built for bare-metal Linux. In WSL the GPU is reached
through the system ROCm's librocdxg bridge over /dev/dxg, which the bundled
runtime cannot drive -- it segfaults on the first GPU call. So:

  - install_llama_prebuilt.py: the prebuilt's llama-quantize/llama-server
    validation runs with the bundle dir first on LD_LIBRARY_PATH, segfaults
    (empty stderr), and the install silently falls back to a CPU source build
    (which on this host can't even build for GPU -- hipcc absent). The Strix
    Halo WSL user ends up on CPU despite a working GPU.
  - llama_cpp.py: even if a GPU prebuilt were kept, the serve-time launcher
    put the bundle dir first too, so it would crash at load.

Fix: on a ROCDXG WSL host (gated on /dev/dxg + "microsoft" /proc/version +
a librocdxg-providing /opt/rocm), prepend the system ROCm lib dir to
LD_LIBRARY_PATH so the WSL-capable libamdhip64 + librocdxg load first, while
the bundle still supplies libggml-hip / librocblas with the gfx1151 kernels.
Set HSA_ENABLE_DXG_DETECTION=1 alongside. Added _wsl_system_rocm_lib_dirs()
to both modules (kept identical so a prebuilt that passed install validation
runs the same way at serve time). Strict no-op on bare-metal Linux, NVIDIA,
macOS, and Windows.

Verified on gfx1151 (Radeon 8060S) in WSL (ROCm 7.2.1 + librocdxg, Adrenalin
ROCDXG): before, the lemonade gfx1151 prebuilt segfaulted and the install
fell back to a broken CPU build; after, install_llama_prebuilt validates and
keeps the GPU prebuilt (source=published, prebuilt_fallback_used=False), and
Studio serves Qwen3-1.7B-GGUF at 53 tok/s with the model resident in GPU
memory (llama-server device_info: ROCm0 = AMD Radeon 8060S).

* tests: cover the WSL ROCDXG drop-in + system-HIP-ordering fixes

- _wsl_system_rocm_lib_dirs: no-op without /dev/dxg, on bare-metal Linux,
  and on WSL without librocdxg; returns the system lib dir on a ROCDXG WSL
  host.
- binary_env: prepends the system ROCm lib dir ahead of the bundle and sets
  HSA_ENABLE_DXG_DETECTION on WSL; unchanged on bare-metal Linux.
- install.sh: _persist_rocm_wsl_dropin exists, is gated on librocdxg, and the
  rocminfo-already-works early return calls it before returning.
- llama_cpp.py: the serve-time launcher prepends the WSL rocm dirs before the
  bundle dir (mirrors binary_env).

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Tighten WSL ROCDXG fix comments (no logic change)

Condense the drop-in / system-HIP-ordering comments and docstrings added in
this PR. Verified comment-only via AST parse + py_compile + sh/bash -n, the
308-test rocm_support suite, and a dash functional re-run of the bootstrap
(drop-in still persisted, env still set).

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-06-12 04:46:39 -07:00
Daniel Han
a24c9987ca
Studio: gate the staged prebuilt runtime validation behind a flag (off by default) (#6216)
The post-download llama-quantize / llama-server smoke test JIT-compiles CUDA kernels on the first GPU forward pass and stalls every install and update by minutes on Blackwell (sm_100). Gate it behind _RUN_STAGED_PREBUILT_VALIDATION, disabled for now, keeping the smoke test and the source-build fallback it triggers fully intact so it can be restored by flipping the flag to True.

Hashless external prebuilts (e.g. lemonade) are not in the approved-sha256 manifest and rely on the functional smoke test as their only integrity gate, so they are always validated regardless of the flag; only approved bundles, already proven by the sha256 manifest, skip it.

The sha256 archive verification and the static Linux/macOS preflights are unchanged and still run for every install.
2026-06-12 01:12:20 -07:00
Leo Borcherding
84b42c9283
fix: deduplicate lemonade ROCm prebuilt selection log (#6021)
* fix: deduplicate lemonade ROCm prebuilt selection log

resolve_lemonade_rocm_choice() is called twice per install (direct
planner + resolve_upstream_asset_choice). The API fetch is already
memoised via _fetch_lemonade_release_cached but the selection log
lines were still emitted on both calls, printing the 'trying
lemonade-sdk ROCm prebuilt' banner and hash-manifest NOTE twice.

Add _lemonade_selection_logged set keyed on (gfx_target, asset_name)
and guard the two log() calls behind a membership check so they print
exactly once per process regardless of call count.

Also extend the _clear_lemonade_release_cache test fixture to clear
the new set between tests to prevent cross-test state bleed.

Fixes #6020

* fix: write log() output to stdout to avoid PowerShell NativeCommandError

On Windows, PowerShell treats any stderr output from a native process as
an error record and prefixes it with 'python.exe :' and sets the
ErrorId to NativeCommandError. Since log() wrote to sys.stderr, every
[llama-prebuilt] status line triggered this, making normal progress
output look like errors in the installer console.

Switch log() to sys.stdout. The download progress bar (DownloadProgress)
retains its stderr/tty logic unchanged -- that path is for interactive
terminal rendering, not status logging.

* fix: remove redundant 'or ""' in lemonade log_key

host.rocm_gfx_target is already guaranteed truthy by the early
return at the top of resolve_lemonade_rocm_choice. The fallback
was dead code.

* Keep resolver stdout machine-readable, route install logs to stdout

log() sending everything to stdout breaks the resolver modes: setup.sh
json.load()s the whole stdout, so one helper log line (network retry,
release-tag scan) corrupts the parse and silently drops back to building
"latest". Default log() to stderr and flip to stdout only on the install
path, where PowerShell otherwise renders stderr as NativeCommandError
noise. Also tighten the lemonade dedup comments.

---------

Co-authored-by: Daniel Han <danielhanchen@gmail.com>
2026-06-11 20:14:22 -07:00
Michael Han
b2b1dcd6ad
Studio: llama.cpp update banner redesign, About tab license info, UI polish (#6196)
* Studio: llama.cpp update banner redesign, About tab license info, inline system prompt editing, naming cleanup

- Redesign the llama.cpp update banner to match the chat composer surface
  (borderless rounded card, composer shadow, Hellix Medium title), rename
  actions to Update and add a 15 minute Remind me later snooze
- Keep the banner up until the user explicitly acts on it; drop the
  outside click dismissal
- Add a Settings > General > Notifications toggle to disable the banner
  for training-only setups (on by default)
- Rename the Help settings tab to About and add a License section
  (Unsloth Studio AGPL-3.0, Unsloth Core Apache-2.0) linking to the
  license files in this repo
- Make the run settings system prompt box an inline editable textarea;
  the popup editor opens when the prompt overflows the box
- Pointer cursor on the preset dropdown chevron
- Dark mode toasts use the chat composer surface color
- Replace standalone Studio with Unsloth in user facing strings; keep
  Unsloth Studio, LM Studio, Fine-tuning Studio, Recipe Studio and CLI
  commands unchanged

* Studio: open the system prompt popup on box click, balance banner padding

- The system prompt box opens the Edit System Prompt dialog on click,
  matching the pencil action
- Slightly more bottom padding on the llama.cpp update banner so the
  spacing reads even next to the action pills

* Studio: replace unsloth studio update with the installer commands in update guidance

- The unsloth studio update command no longer works, so the About tab
  update section now shows the one-line installer (curl or irm) for
  PyPI and unknown installs, and git pull plus the local installer for
  checkouts
- Add a short note that unsloth studio update is no longer supported
- Link the Installation, Updating and Windows install docs pages
- The package update banner now copies the platform installer command
  instead of unsloth studio update

* Studio: rounder account menu, inline system prompt box with popup from the label

- Account menu corners go from 14px to 18px via a specific override,
  since list menus pin border-radius globally
- llama.cpp banner bottom padding 22px
- System prompt is an inline editable textarea again; clicking the
  System Prompt label opens the popup editor, and an overflowing
  prompt opens it on box click

* Studio: show the standard install commands in the About update section

- Both one-line install commands (MacOS/Linux/WSL and Windows
  PowerShell) are always shown, labeled like the docs, since running
  them again updates an existing install
- Drop the unsloth studio update deprecation note
- Add the Mac install guide to the docs links

* Studio: clearer platform toggle and layout in the About update section

- Section heading is Update
- Platform picker is a pair of pill buttons, MacOS / Linux and Windows,
  and only the selected platform's install command is shown
- Intro reads: To install or update Unsloth
- Local update heading separates checkout guidance from the standard
  install command

* Studio: report GitHub branch instead of dev for source checkouts

A source checkout not on an exact release tag now shows
GitHub <branch> (e.g. GitHub main) as the Studio version in About.
Detached or unusual HEADs still fall back to dev.

* Studio: tighten the About update section copy and toggle styling

- Platform toggle buttons are borderless pills
- Shorter local update wording and restart note
- Docs links read Mac and Windows

* Studio: tighten line spacing in the sidebar account button

* Studio: fix vanishing compact MCP icon on hover, single line pill tooltips

- Compact caret pills (MCP, RAG) keep their icon on hover for inactive
  pills too; the off switch hover rules hid the icon while compact mode
  hid the X, leaving an empty slot
- Compact icon tooltips and single line compact tooltips render as full
  pills; wrapped tooltips keep the 9px corners. TooltipContent measures
  line count in a ref callback since Radix mounts portal content
  without re-rendering the wrapper
- 1px gap between the name and Unsloth lines in the sidebar account
  button

* Studio: Projects hover plus button, align recents with the label

- Hovering the Projects nav item reveals a plus button that opens the
  New project dialog, with the same circular hover treatment as the
  chat row actions
- Recent chat titles start at the same x as the Recents label
- The system prompt overflow lock only engages for a non-empty prompt
  with a laid-out box, so a mis-measure cannot turn clicks into the
  popup

* Clip system prompt overflow inside the rounded box

Wrap the inline system prompt textarea in a rounded overflow-hidden
surface so scrolled text and the scrollbar stay inside the box. The
focus ring moves to the wrapper via focus-within.

* Add updating progress bar to llama banner and shorten settings copy

While an update is applying, the banner action row becomes an
indeterminate progress bar that keeps animating under reduced motion,
matching the other loading indicators. Settings descriptions across
General, Profile, Appearance, Chat, Connections, API, and About are
trimmed without losing meaning.

* Address review: desktop update note, server platform detection, zh-CN keys

The About tab no longer shows terminal install commands in the desktop
app, where the bundled backend updates through the built-in updater;
it shows a short note and the docs links instead.

fetchDeviceType now sends the auth token to /api/health, which only
reports the server platform to authed callers, and caches only a
server-reported value. Copied install commands then match the host
platform rather than the browser when they differ (WSL, SSH).

zh-CN gains translations for the new notification and license keys,
the renamed About tab title, and the desktop update note.

* Real download progress for llama.cpp updates, prompt and sidebar polish

The update worker now streams the installer output and parses its
download percent lines into job progress, exposed via the update-status
API. The installer emits finer non-tty milestones when
UNSLOTH_PROGRESS_PERCENT_STEP is set; the worker requests 5 percent
steps. The banner renders a determinate bar from the reported fraction
and falls back to the sweep until the first percent arrives.

Also removes the focus ring on the inline system prompt box and
slightly shrinks the Projects hover plus icon.
2026-06-11 09:27:34 -07:00
Daniel Han
2e29363ad9
Studio CI: stop HF 429 rate limits from sinking the llama.cpp prebuilt path (#6199)
* Stop HF 429 rate limits from sinking the llama.cpp prebuilt path in Studio CI

The Windows Studio API smoke job failed when anonymous huggingface.co
fetches of the tiny GGUF validation model (stories260K.gguf) hit HTTP 429
on the shared runner IP. The installer correctly refused the unvalidated
prebuilt and fell back to a source build, which the prebuilt assert then
flags. Three layers fix this:

1. Installer: auth_headers sends HF_TOKEN (or HUGGING_FACE_HUB_TOKEN) to
   huggingface.co hosts, mirroring the existing GH_TOKEN handling for the
   GitHub API rate limit. A redirect handler strips Authorization when a
   download is redirected off-host (CDN signed URLs reject foreign auth;
   urllib forwards headers on redirect, unlike requests/huggingface_hub).

2. Workflows: the HF_HOME prime steps also prefetch the validation model
   so the install's hf_hub_download resolves from the local cache even
   when the Hub is rate limiting; cache keys bumped v1 to v2 to repopulate.
   This also covers fork PRs, which cannot see secrets.

3. Workflows: every Install Studio / update step that already passes
   GH_TOKEN now also passes HF_TOKEN, so both the huggingface_hub path and
   the direct URL fallback are authenticated.

Tests: tests/studio/install/test_hf_auth.py covers token-to-host routing,
the cross-host redirect strip, and the download_bytes wiring (offline).
Verified live: authenticated download of the validation model through the
new opener (CDN redirect exercised, pinned sha matches) and an offline
hf_hub_download cache hit against an HF_HOME primed by the new step.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-06-11 06:57:48 -07:00
Tai An
a22169941d
fix(studio): fall back to copy when os.replace is blocked during install activation (#6133)
* fix(studio): fall back to copy when os.replace is blocked during install activation

On Windows ARM64 the antivirus scanner can transiently hold a freshly
extracted DLL open while MoveFileEx runs, so activating the staged
llama.cpp prebuilt fails with [WinError 5] Access is denied. Attempt
os.replace first, then fall back to a file-by-file copytree which
bypasses the rename.

* address review: keep os.replace for rollback, scope copy-fallback to staging

The copy + rmtree fallback could silently corrupt a live install if the
existing directory is busy. Restrict it to freshly extracted staging
trees (renamed activate_staged_dir) and keep strict os.replace for the
rollback move so a busy active install raises immediately.

* fix(studio): scope copy-fallback to busy-lock errors, log it, and add tests

---------

Co-authored-by: Lee Jackson <130007945+Imagineer99@users.noreply.github.com>
Co-authored-by: Etherll <61019402+Etherll@users.noreply.github.com>
2026-06-11 15:30:08 +03:00
Daniel Han
36bc0394d9
Studio: fetch the release source asset for exact (mix) source builds (#6195)
* Studio: fetch the release source asset for exact (mix) source builds

The source-build fallback rebuilt the codeload/archive URL from the
source repo and commit. A mix build's merged tree is never pushed to any
repo (it ships only as the release's llama.cpp-source-commit-<sha>.tar.gz
asset), so codeload 404s on the merge commit and an uncovered host could
not build from source. When an exact-source asset exists, fetch it
directly from the release and keep codeload as the fallback for vanilla
builds whose commit is real.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-06-11 05:22:38 -07:00
Daniel Han
2db9fad4b5
Installer: GPU detection follow-ups after #6174 (poisoned venv repair, llama.cpp routing, probe bounds) (#6183)
* Installer: harden GPU detection follow-ups after #6174

Ports the NVIDIA-priority and /proc/driver/nvidia/gpus hardening from #6174
to the remaining pathways and adds recovery for already-poisoned venvs:

- install_python_stack.py: add _ensure_cuda_torch so 'unsloth studio update'
  force-reinstalls CUDA torch when the venv carries a ROCm build on an NVIDIA
  Linux host (the pre-#6174 poisoning signature). Honors UNSLOTH_TORCH_BACKEND,
  UNSLOTH_ROCM_TORCH_INSTALLED, and CUDA_VISIBLE_DEVICES=-1/'' opt-outs; never
  touches healthy CUDA, deliberate CPU wheels, macOS, or Windows.
- install_llama_prebuilt.py: detect_host gains the /proc NVIDIA fallback and
  skips ROCm probes when NVIDIA is usable; forwarded --rocm-gfx/--has-rocm
  overrides still win.
- setup.sh: GPU summary classifies NVIDIA first through a timeout-bounded
  probe with the /proc fallback; AMD probes are bounded and gain a KFD
  vendor_id 4098 fallback; the llama.cpp source build only selects
  GGML_CUDA/GGML_HIP when the matching GPU is actually detected.
- install.sh: bound both nvidia-smi calls with a 10s timeout (no behavior
  change when healthy or when the timeout binary is absent); classify the
  exported UNSLOTH_TORCH_BACKEND on the final index path segment so custom
  mirrors containing 'rocm'/'gfx' in their base path are not mislabeled.
- install.ps1 + setup.ps1: NVIDIA probes now require a real 'GPU N:' row from
  nvidia-smi -L under a 10s bound instead of bare exit code 0; later CUDA
  version and compute_cap queries are bounded too.

Tests: 3 new test files (50+ tests), suite at 788 passed.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix Resolve-CudaToolkit driver probe for extracted-function unit test

tests/studio/test_resolve_cuda_toolkit.ps1 extracts Resolve-CudaToolkit alone
into a child pwsh and stubs nvidia-smi with a .ps1 script. The bounded runner
is not in scope there (and ProcessStartInfo cannot dispatch .ps1 stubs), so
the DriverMaxCuda parse silently returned nothing and the major-mismatch
scenarios failed. Fall back to direct invocation when Invoke-NvidiaSmiBounded
is unavailable; production setup.ps1 always has it defined and keeps the
10s bound.

* Treat CUDA_VISIBLE_DEVICES empty or -1 as hidden in NVIDIA-first guards

The NVIDIA-first guards added in this branch only special-cased
CUDA_VISIBLE_DEVICES=-1 at two setup.sh gates and ignored the empty-string
form entirely, while the Python detector (install_llama_prebuilt.py)
already treats both as hidden. On a mixed AMD+NVIDIA host steered to the
AMD card via CUDA_VISIBLE_DEVICES, the guards suppressed the AMD probes,
so setup.sh fell to a CPU llama.cpp build and install.sh picked CUDA
wheels instead of ROCm.

Move the policy into the helpers so every consumer agrees:

- install.sh: new _cvd_hides_nvidia checked first in _has_usable_nvidia_gpu
- studio/setup.sh: same via _setup_cvd_hides_nvidia; the two ad-hoc
  CUDA_VISIBLE_DEVICES=-1 gate conditions are now redundant and removed
- studio/install_python_stack.py: _has_usable_nvidia_gpu returns False
  when CUDA_VISIBLE_DEVICES is set to  or -1 (whitespace tolerated)

Tests: 5 new sh scenarios (hidden via , -1, padded -1, visible device,
and mixed host with hidden NVIDIA restoring the ROCm route) plus a pytest
class covering all three implementations behaviourally.

Addresses the review comment on the NVIDIA-first setup.sh block.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Retrigger CI after PyPI 503 outage during the previous run

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-06-11 05:06:02 -07:00
Daniel Han
898d3dd0b5
Studio: offer the in-app llama.cpp update for source-build (markerless) installs (#6188)
* Studio: offer the in-app llama.cpp update for source-build (markerless) installs

Source-build installs have no UNSLOTH_PREBUILT_INFO.json marker, so freshness
reported supported=False and the Update button never showed (notably on macOS,
where the fork shipped no prebuilt before b9585 and setup fell back to a source
build). When an install has no marker but an official prebuilt now exists for
the host, surface the update and let one click swap it in place.

- install_llama_prebuilt.py: published_repo_for_host() (the setup.sh host->repo
  rule in Python) and a --resolve-prebuilt mode that reports whether a prebuilt
  exists for this host without downloading.
- llama_cpp_update.py: markerless branch in get_update_status/start_update,
  version-suppressed so source builds already newer than latest are not nagged;
  fail-open throughout.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: run llama update detection off the event loop, expose source_build

The markerless source-build check probes the host and reads GitHub, so run
get_update_status and start_update in a worker thread to keep the API
responsive. Expose source_build in the status response so the banner can label
the source-build switch.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Keep the llama-route auth stub out of sys.modules for the rest of the suite

test_llama_route.py replaced sys.modules['auth.authentication'] with a
bare stub at collection time and never restored it, so every later test
importing create_access_token got the stub: 17 failures across
test_desktop_auth, test_middleware, test_openai_tool_passthrough and
test_rag_preview on all four Backend CI Python versions. Import the
real module when its deps are available and only stub in minimal envs,
popping the stubs after the standalone route load either way.

* Studio: address review on the source-build update path

- published_repo_for_host: route CPU-only Windows to ggml-org too (mirrors
  setup.ps1; the fork ships no win-cpu bundle), macOS always the fork.
- markerless detection compares/display the upstream llama_tag, not a possible
  fork wrapper release_tag, so a source build is not wrongly judged newer.
- do not offer when there is no resolvable install root (a pinned
  LLAMA_SERVER_PATH outside a managed dir): an apply would not take effect.

* Ignore version probes in the update tests' subprocess capture

The status polls in these tests trigger the new source-build detection,
which shells out to llama-server --version through the same patched
subprocess.run. On slow runners that probe lands after the installer
call and clobbers the single captured argv, failing the flag
assertions (seen on the 3.10/3.11 Backend CI jobs). Skip probe calls
in all three fakes so only the installer invocation is captured.

* Skip markerless re-detection while the update job is swapping the tree

On a source-build install the frontend polls update-status every 3s
during an apply, and each poll ran _source_build_status, which execs
the very llama-server binary the job is concurrently replacing. On
Windows that exec can hold the exe long enough to fail the installer's
os.replace; everywhere it is a per-poll subprocess spawn for a status
the poller does not read (it only consumes job progress). Gate the
markerless branch on the job not running; the marked path is probe-free
and still returns the live job state.

* Studio: tighten source-build update root, repo routing, and downgrade guard

Only manage a markerless install when the active binary lives under a
resolvable llama.cpp root (marker dir, UNSLOTH_LLAMA_CPP_PATH it sits in,
or a llama.cpp ancestor); a pinned LLAMA_SERVER_PATH or a PATH/system
binary is left alone so an apply cannot install where it would not take
effect. Gate start_update on the same suppression as detection so a
direct POST cannot downgrade a source build newer than the latest
prebuilt. Route Linux hosts with AMD tooling (rocminfo/amd-smi/hipconfig/
hipinfo) to the fork in --resolve-prebuilt, matching setup.sh, so a HIP
source build is not offered an upstream CPU prebuilt.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: cover inactive env root and pinned llama.cpp checkout in update root tests

---------

Co-authored-by: danielhanchen <michaelhan2050@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-06-11 02:45:12 -07:00
oobabooga
cc1a724efc
Source llama.cpp prebuilts from unslothai/llama.cpp (CUDA, ROCm, macOS) (#5963)
* Studio: route arm64 Linux CUDA hosts to linux-arm64-cuda prebuilts

* Studio: SM-aware selection for windows-cuda app bundles

* Studio: select published ROCm bundles by gfx target (linux + windows)

* Studio: route macOS installs to the fork's prebuilt bundles

* Studio: fix windows cuda13 driver-13.0 gate and ROCm gfx prefix overreach

* Fix Blackwell Windows pin shadowing native app-bundle (b9360 over b9457)

* Match Windows cuda12 driver floor to Linux (12.x minor-version compat)

* Fix Windows app-bundle dropped when runtime DLLs come from torch/lib

* Fold the manifest resolver into the simple-path resolver (one entry, no dormant full path)

* Remove unused UNSLOTH_LLAMA_PUBLISHED_REPO override

* Route Windows GPU hosts to the fork prebuilts in setup.ps1

* Document sm_103 path divergence and mark --simple-policy as a no-op

* Note sm_103 coverage now comes from the producer manifest

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Remove the now-vestigial --simple-policy flag (one resolver handles all hosts)

* Unify the fork onto the manifest path; drop the linux-x64 filename path and hardcoded coverage tables

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Strip whitespace from manifest gfx_target/mapped_targets when parsing

* Windows CUDA: sort coverage-unknown bundles last so they can't outrank targeted ones

* Share the SM-coverage sort key between the linux and windows selectors via _sm_range

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: reject approved releases with an exact source archive but no source repo to clone from

* Studio: accept the fork's windows-rocm kind in the Windows reinstall check

* Studio: accept a manifest-bundle source repo in the exact-source release check

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: route Linux hosts to the fork only when a usable GPU is present

* Fix Windows AMD lemonade tag resolution for PR #5963

The fork release scan passes each scanned release's upstream tag
(b9518, ...) to the lemonade lookup, but lemonade publishes its own tag
series (b1292, ...) that never contains upstream tag numbers. On a
Windows AMD host every scanned release therefore 404s the lemonade
fetch twice, the upstream HIP zip is dropped by the approved-hash gate,
and the scan walks the whole release history until it dies on the
unauthenticated GitHub rate limit or falls to a HIP source build. The
Linux path already passes the requested tag ("latest") and works.

Thread the requested tag through resolve_release_asset_choice ->
resolve_asset_choice -> resolve_upstream_asset_choice as lemonade_tag,
used only by the lemonade lookups. Upstream asset names keep the
concrete per-release tag and all new parameters default to the old
behavior.

Verified on a gfx1151 box: before, the native Windows install scanned
b9518..b8811 and aborted on rate limit; after, it selects
llama-b1292-windows-rocm-gfx1151-x64.zip (lemonade) from fork release
b9518, passes staged validation, and the installed llama-server
enumerates ROCm0. WSL keeps selecting the matching ubuntu bundle.
Adds a regression test pinning that the Windows fork path resolves
lemonade via /releases/latest, never /releases/tags/<fork-tag>.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Plan lemonade for Linux ROCm hosts on the ggml-org direct path for PR #5963

Audit follow-up to 72f32364 across the other selection pathways. The
ggml-org direct planner kept its lemonade attempt for Windows ROCm
hosts but planned only the CPU tarball for Linux ROCm hosts, so an AMD
Linux box routed to ggml-org (for example a --published-repo override)
silently installed the CPU build. That lemonade planning used to live
in the --simple-policy dispatcher this PR removed.

Add the lemonade attempt ahead of the CPU tarball in the Linux x86_64
branch, mirroring the Windows branch, with the lookup keyed to the
requested tag. Adds a regression test asserting lemonade is the first
attempt for a Linux ROCm host on the direct path.

Also re-verified the other pathways on a gfx1151 box: the fork-routed
flows pass the requested tag everywhere, repeat runs over an existing
lemonade install correctly skip with "already matches selected release
b9518" on both native Windows and WSL, and macOS, CUDA and CPU
selection are untouched. Suites: 328 passed on Linux, Windows matches
the pre-existing baseline.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Daniel Han <danielhanchen@gmail.com>
Co-authored-by: danielhanchen <michaelhan2050@gmail.com>
2026-06-10 08:49:57 -07:00
pre-commit-ci[bot]
1d9090ff6b [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
2026-06-10 15:30:34 +00:00
danielhanchen
1d7f9b56f4 Installer: never plan a non-sm_120 CUDA build on Blackwell, never plan CPU on an NVIDIA host
Two hardening fixes from the fleet-validation audit.

Blackwell Windows hosts drop windows-cuda attempts that cannot offload
sm_120 instead of leaving them ranked behind the b9360 pin. A cuda-12.4
upstream build loads and passes the functional validator but runs the
model on a slow non-native path (an RTX 5090 measured 7.1 tok/s vs
551.2 on cuda-13.3), so one failed pin download away from that is too
close. The coverage check now also reads manifest SM metadata first, so
published cuda12 app bundles (toolkit 12.8, sm_120 included) stay
selectable and make the pin go dormant correctly.

The fork-release Linux planner no longer appends the linux-cpu bundle
for NVIDIA hosts whose CUDA selection produced nothing; it raises so
the caller walks back to an older release with a usable CUDA line,
mirroring the deliberate ROCm policy. Today's walk-back only works
because partial releases ship no CPU bundle; this keeps it working if
a future partial release does.
2026-06-10 15:29:27 +00:00
Daniel Han
62191c4765
Windows/WSL installer: fix winget msstore cert failure, amd-smi DiskPart prompt, and enable AMD GPU (Strix Halo gfx1151) (#5940)
* Fix Windows installer winget msstore certificate failure

`winget install` was invoked without `--source winget`, so winget also
queried the msstore source. When msstore fails certificate pinning
(error 0x8a15005e, "The server certificate did not match any of the
expected values") winget aborts and demands `--source`, so the Python
(and uv) install fails even though the package exists in the winget
source.

- Pass `--source winget` to all winget install calls (Python x2, uv).
  Both packages live in the winget source, so this is strictly correct
  and skips the failing msstore round-trip entirely.
- Add a python.org fallback (Install-PythonFromPythonOrg) that downloads
  the official installer and runs it silently per-user (no admin/UAC)
  when winget is unavailable or fails for any reason. Mirrors the
  existing uv -> astral.sh fallback so Python installs without manual
  steps. Resolves the latest 3.13.x from python.org with a pinned
  fallback, and selects the amd64/arm64/x86 installer per architecture.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Pin remaining setup.ps1 winget calls to --source winget

Two winget invocations in studio/setup.ps1 still queried all sources and
could hit the same msstore certificate-pinning failure (0x8a15005e) that
broke the Python install in install.ps1:

- `winget show Nvidia.CUDA --versions` (CUDA Toolkit version probe)
- `winget install ... ShiningLight.OpenSSL.Dev` (OpenSSL dev for llama-server)

Every other winget call in this file already passes `--source winget`
(Git, CMake, VS Build Tools, CUDA install, Node.js, and setup.ps1's own
Python 3.12 install), so these two were stragglers. Both packages live in
the winget source; pinning it makes setup robust to an unhealthy msstore
source, matching the rest of the file.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Stop amd-smi GPU probe from popping a DiskPart UAC prompt

On Windows, AMD GPU detection in install.ps1 and studio/setup.ps1 runs
`amd-smi list` / `static --asic` / `version`. amd-smi (shipped in
System32 by the Adrenalin driver) auto-elevates to read GPU/APU memory
details, surfacing a confusing DiskPart UAC prompt mid-install. The
Studio backend already documents and circuit-breaks on this in
studio/backend/utils/hardware/amd.py, but the installers did not.

Add an Invoke-AmdSmiNoElevate helper (both scripts) that runs amd-smi via
Start-Process under __COMPAT_LAYER=RunAsInvoker so it cannot auto-elevate
(no prompt), with a 30s timeout (matching amd.py) so a flaky amd-smi
cannot stall the install for minutes. On failure/timeout the existing WMI
name -> gfx fallback still resolves the arch, so detection is unchanged on
working hosts.

Verified on a Strix Halo (Radeon 8060S / gfx1151) box: the prompt is gone
and the probe is bounded.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Add experimental ROCm-on-WSL setup helper for Strix Halo (gfx1151)

install.sh already routes gfx1151 (Radeon 8060S / Strix Halo) to the
repo.amd.com/rocm/whl/gfx1151 wheels once a ROCm runtime is present, but
it does not install AMD's driver/ROCm stack -- a large, admin-gated
prerequisite. scripts/install_rocm_wsl_strixhalo.sh automates the Linux
side on a dedicated Ubuntu 24.04 WSL2 distro: ROCm 7.2 (wsl usecase), the
rocr4wsl HSA runtime, a librocdxg build, env setup, and a PyTorch gfx1151
GPU smoke test. A hard preflight refuses to run until the Adrenalin
>=26.3.1 driver is actually present, so it cannot half-install.

Procedure adapted from AMD's ROCm-on-WSL docs and community gfx1151 notes.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Detect AMD GPUs by name so native Windows gets a GPU llama.cpp

The gfx-arch inference from the WMI GPU name was gated behind $HasROCm,
which the hipinfo/amd-smi probe leaves false on the common Windows case
(Adrenalin driver only, no HIP SDK -- and amd-smi often cannot read the
arch without elevation). So an AMD GPU was detected by name but never
mapped to a gfx target, --rocm-gfx was not forwarded, and studio setup
fell back to a CPU llama.cpp build.

Un-gate the inference (install.ps1 + studio/setup.ps1) so it runs whenever
an AMD GPU name is available. The inferred gfx is forwarded as --rocm-gfx,
which makes install_llama_prebuilt.py download the matching lemonade-sdk
ROCm prebuilt (e.g. llama-bNNNN-windows-rocm-gfx1151-x64.zip) -- a
GPU-accelerated llama.cpp that bundles its own ROCm runtime, so it runs
with just the Adrenalin driver. PyTorch's ROCm wheels still require a
confirmed HIP SDK ($HasROCm), so this only affects llama.cpp / inference
and never pulls broken ROCm torch.

Also broaden the name->arch table to every family lemonade ships Windows
assets for: gfx120X (RDNA 4), gfx110X (RDNA 3), gfx1151/gfx1150
(RDNA 3.5), and gfx103X (RDNA 2). Unknown names still fall back to CPU.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Suppress amd-smi DiskPart UAC prompt in the Python install/runtime paths

The earlier PowerShell guard covered install.ps1 / setup.ps1, but the
Python installer (install_llama_prebuilt.py detect_host,
install_python_stack.py ROCm probes) and the Studio backend monitor
(amd.py) also shell out to amd-smi on Windows, where it auto-elevates and
pops the same DiskPart UAC prompt mid-install / at runtime.

Inject __COMPAT_LAYER=RunAsInvoker into the amd-smi subprocess env on
Windows so it runs un-elevated (no prompt). Callers already tolerate an
empty/failed result and fall back to WMI / name detection (installer) or
the existing circuit breaker (amd.py). Gated to Windows so Linux/macOS
amd-smi behaviour is unchanged.

- install_llama_prebuilt.py: handled centrally in run_capture (covers
  detect_host's `amd-smi list` and the version probe).
- install_python_stack.py: new _amd_smi_env() helper on its 3 raw
  subprocess.run amd-smi calls.
- amd.py: merge RunAsInvoker into the existing child env.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Tighten AMD GPU name->arch patterns to avoid mismatches

The W9[0-9]{3} and RX 90[0-9]{2} patterns added for RDNA 4 were
speculative and over-broad: W9xxx would also match old GCN FirePro
W9100/W9000 cards (wrong gfx1201 -> a lemonade gfx120X download that
fails validation), and RX 90[0-9]{2} was redundant with the explicit
9070/9060 entries. Drop both; keep only confirmed RDNA 4 SKUs. Unmatched
AMD names still fall back cleanly to CPU.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Fetch the llama.cpp validation model via huggingface_hub

The prebuilt validation downloads a tiny GGUF test model from huggingface
via bare urllib. On Windows / proxy setups where the server sends an
incomplete TLS chain, urllib cannot complete the Amazon CA chain (it does
no AIA intermediate fetching) and fails with CERTIFICATE_VERIFY_FAILED, so
a perfectly good GPU prebuilt is rejected and the installer falls back to a
CPU source build.

Route the validation-model download through huggingface_hub
(hf_hub_download) -- the same mechanism Studio uses for model downloads,
which completes the chain where urllib cannot -- keeping the direct URL as
a fallback. This lets the lemonade ROCm prebuilt validate and install on
cert-restricted machines (verified: hf_hub_download succeeds where urllib
returns CERTIFICATE_VERIFY_FAILED).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Guard the remaining raw amd-smi version probe via run_capture

A ROCm-version detector in install_llama_prebuilt.py called amd-smi version through a raw subprocess.run that bypassed run_capture's Windows RunAsInvoker guard, so it still triggered the DiskPart UAC prompt during setup. Route it through run_capture like the other amd-smi calls.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Forward --rocm-gfx even when the ROCm runtime is unconfirmed

setup.ps1 forwarded --rocm-gfx (and picked the windows-hip llama.cpp
prebuilt) only inside `if ($HasROCm)`. On Adrenalin-only hosts (amd-smi
present but no HIP SDK, so $HasROCm stays false) the gfx arch was
name-inferred but never forwarded, so install_llama_prebuilt.py saw
has_rocm=False and installed the CPU build -- even though the lemonade
gfx1151 GPU prebuilt runs fine there (it bundles its own ROCm runtime;
verified: llama-cli --list-devices -> ROCm0: AMD Radeon 8060S, 69 GB).

Forward --rocm-gfx whenever a gfx arch is known (it is authoritative and
implies ROCm in install_llama_prebuilt.py), and treat a known gfx arch as
windows-hip in the existing-install mismatch check. --has-rocm stays gated
on the confirmed-runtime signal.

Verified on Radeon 8060S / gfx1151: the installer now selects, validates,
and installs llama-b1286-windows-rocm-gfx1151-x64.zip (ROCm DLLs present)
instead of the CPU build.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Install AMD ROCm PyTorch on name-inferred gfx hosts (enables Train/Export)

setup.ps1 picked the AMD ROCm PyTorch wheels only inside `if ($HasROCm ...)`.
On Adrenalin-only hosts (amd-smi present but no HIP SDK, so $HasROCm is
false) the gfx arch was name-inferred but the ROCm-wheel branch never ran,
so the host got torch+cpu. With CPU torch, torch.cuda.is_available() is
False, so the Studio backend sets CHAT_ONLY=True and hides Train/Export.

Un-gate the ROCm PyTorch index resolution on a known gfx arch (mirrors the
llama.cpp --rocm-gfx fix). AMD's per-arch Windows wheels
(repo.amd.com/rocm/whl/<gfx>) bundle the ROCm runtime, so they work without
a HIP SDK; a failed install still falls back to CPU.

Verified on Radeon 8060S / gfx1151: torch 2.11.0+rocm7.13.0 installs and
torch.cuda.is_available() -> True, device "AMD Radeon(TM) 8060S Graphics",
GPU matmul OK -> CHAT_ONLY=False -> Train/Export enabled.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Force amd-smi un-elevated process-wide in the Python installers

Guarding individual amd-smi call sites kept missing some (install_python_stack.py's probe loop and its Windows GPU re-check), so the DiskPart UAC prompt kept reappearing. Set __COMPAT_LAYER=RunAsInvoker process-wide at the top of install_python_stack.py and install_llama_prebuilt.py on Windows so every amd-smi subprocess (current and future) runs un-elevated with no per-call guard. Safe: these scripts only spawn amd-smi/rocminfo/hipinfo probes and pip/uv. setup.ps1 keeps per-call guards because it also spawns winget installers that need elevation.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Fix Invoke-AmdSmiNoElevate exit code on PS 5.1 + RX 7700S arch match

Start-Process -PassThru leaves the returned process object's .ExitCode
$null after WaitForExit on Windows PowerShell 5.1, so the helper set
$LASTEXITCODE to $null and every caller's `if ($LASTEXITCODE -eq 0 ...)`
was always false -- the amd-smi GPU / gfx-token / ROCm-version detection
branch was effectively dead (masked only because the un-gated WMI
name->gfx inference still ran). Reproduced on PS 5.1.26100.

Rewrite the helper to use [System.Diagnostics.Process]::Start with a
ProcessStartInfo (UseShellExecute=false), whose .ExitCode is reliable,
with async stream reads (ReadToEndAsync) to avoid a pipe-buffer deadlock
and WaitForExit(timeout) to bound a flaky amd-smi. __COMPAT_LAYER=
RunAsInvoker (inherited via the process env) still suppresses the
auto-elevation / DiskPart prompt. Also drops the temp files and the
empty-ArgumentList edge case. Verified: exit code propagates
(7 -> $LASTEXITCODE=7), output captured, env restored.

Also fix the gfx1100 name pattern `RX 7700(?! S)` -> `RX 7700(?!S)` so the
spaceless retail name "RX 7700S" is correctly excluded (it belongs to the
gfx1102 row). Both found by PR review.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Address PR review follow-ups (install.sh table, update path, tests, WSL)

From the multi-agent PR review:

- install.sh: sync the AMD name->arch table with install.ps1 / setup.ps1
  (the bash table had drifted to the old narrow patterns). Adds RDNA 2
  (gfx103X), workstation PRO W SKUs, and more Strix Halo/Point names, and
  orders gfx1102 before gfx1100 so the spaceless retail name "RX 7700S"
  resolves correctly (bash case has no negative lookahead). AMD-ROCm-only:
  the name inference stays gated behind _has_amd_rocm_gpu(), so NVIDIA /
  CPU / macOS are unaffected.

- setup.ps1: the "dependencies up to date" fast path skipped the torch
  reinstall, so an existing user who had CPU torch (installed before
  ROCm-wheel support) stayed stuck in CHAT_ONLY. Now, when an AMD gfx arch
  is known AND the installed torch is CPU-only, don't skip -- force the
  dependency pass so the ROCm wheels install.

- scripts/install_rocm_wsl_strixhalo.sh: resolve the real /opt/rocm dir
  instead of hardcoding ROCM_VER for LD_LIBRARY_PATH / the librocdxg
  symlink (breaks if amdgpu-install lays ROCm under a patch-version dir);
  add a LIBROCDXG_REF pin knob and a "verified against" freshness header.

- tests/studio/install/test_pr5940_followups.py: cover _hf_resolve_url_parts,
  _fetch_validation_model_bytes (hf path + urllib fallback), run_capture's
  Windows-only amd-smi RunAsInvoker injection, and install.ps1 vs setup.ps1
  name-table parity (catches future drift). 14 tests, all passing.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix DiskPart UAC prompt: skip amd-smi on Windows without a HIP SDK

On Windows, amd-smi re-initialises the ROCm runtime on every invocation
(even `amd-smi version`) and, on hosts without a working HIP runtime
(consumer APUs/dGPUs with only the Adrenalin driver), elevates a child
process at runtime -- popping a UAC/DiskPart prompt. amd-smi's own
manifest is asInvoker, so __COMPAT_LAYER=RunAsInvoker cannot suppress
that runtime elevation (verified: even `amd-smi version` hangs and
times out with RunAsInvoker set).

Replace the ineffective RunAsInvoker-only approach with a real gate:
only spawn amd-smi on Windows when a HIP SDK is detectable (hipinfo
present, so amd-smi runs un-elevated) or the user opts in with
UNSLOTH_ENABLE_AMD_SMI=1. The gfx arch is already resolved from WMI
name inference (forwarded via --rocm-gfx), so ROCm wheel + lemonade
llama.cpp selection is unaffected. Linux/macOS amd-smi never elevates
and is untouched (no regression). RunAsInvoker is kept as harmless
belt-and-suspenders for tools that DO use manifest elevation.

Applied consistently across:
  - studio/backend/utils/hardware/amd.py  (runtime GPU polling)
  - install.ps1, studio/setup.ps1         (install-time detection)
  - studio/install_llama_prebuilt.py      (prebuilt arch probe + version)
  - studio/install_python_stack.py        (ROCm version + arch probe)

Verified live on AMD Radeon 8060S (gfx1151), native Windows: fresh
install detects the GPU, installs ROCm torch (torch.cuda.is_available()
True), launches Studio with no DiskPart prompt, and inference, tool
calling, web search, LoRA finetuning, and GGUF export all run on the GPU.

Tests: add 6 _amd_smi_allowed() gating tests + PowerShell-installer gate
assertions; update the three amd-smi monitoring tests to opt in (they
mock amd-smi as available). Full suite: 267 passed, 2 skipped.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* install.sh: helpful WSL message when the GPU isn't exposed to ROCm

In WSL, an AMD GPU's ROCm-on-WSL runtime is only available with a recent
Adrenalin driver AND a distro AMD supports (currently Ubuntu 24.04). When
neither is in place, GPU detection (rocminfo/_has_amd_rocm_gpu) finds
nothing and we silently fall back to CPU.

Add an actionable hint in the CPU-fallback path, shown only on WSL and
only AFTER detection has already failed -- so it is forward-compatible:
the moment a driver/distro DOES expose the GPU (e.g. if AMD later adds
Ubuntu 26.04 support), detection succeeds and the hint never fires. The
message:
  - notes a GPU is plumbed in (/dev/dxg) but no ROCm runtime is exposed,
  - lists the two prerequisites (Adrenalin driver + Ubuntu 24.04),
  - if the distro is not 24.04, says AMD may not support it yet,
  - tells the user to `wsl --install Ubuntu-24.04` and re-run,
  - links AMD's ROCm-on-WSL guide + the experimental Strix Halo helper.

Verified live: on Ubuntu-24.04 the hint shows (version-warning omitted)
and the CPU install completes; on Ubuntu-26.04 the extra "this distro may
not be supported" line appears and points to 24.04.

Also fix the experimental scripts/install_rocm_wsl_strixhalo.sh: AMD's
repo.radeon.com/amdgpu-install/ is indexed by unified installer version
(30.30, 31.30, ...), NOT ROCm version, so the hard-coded
amdgpu-install/7.2.0/ path 404'd. Scan the installer dirs newest-first
for a noble .deb matching the target ROCm major.minor (ROCm 7.2 ->
30.30.x/amdgpu-install_7.2.x), falling back to the newest available.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* WSL: fix shortcut collision + pin ROCm-on-WSL driver reqs from AMD docs

Two WSL-related fixes informed by AMD's official ROCm-on-WSL docs and
field reports for Strix Halo / Ryzen AI Max+ (Radeon 8060S, gfx1151):

1. Shortcut collision (real bug). install.sh's WSL branch wrote
   "Unsloth Studio.lnk" to the SAME Desktop / Start Menu folder as the
   native-Windows installer (install.ps1 New-StudioShortcuts). Running
   install.sh in WSL therefore silently retargeted the native shortcut at
   the WSL launcher (wt.exe -> wsl.exe), so the desktop/start-menu icon
   stopped launching native GPU Studio. Now the WSL shortcut uses a
   DISTINCT name -- "Unsloth Studio (WSL - <distro>).lnk" -- and fetches
   the Unsloth .ico to %LOCALAPPDATA%\Unsloth Studio so it shows the
   proper icon. Native and WSL shortcuts now coexist.

2. Precise ROCm-on-WSL prerequisites. Research (AMD radeon-ryzen WSL
   compatibility matrix, gianni.rosagallina.com Feb-2026 guide,
   ROCm/ROCm#4952/#5509/#6022) confirms WSL GPU on Strix Halo requires
   AMD Adrenalin Edition >= 26.1.1 (26.2.2+ is the first production
   ROCDXG/WSL release) + ROCm 7.2.1 + Ubuntu 24.04; an older driver does
   not inject the ROCm/DXG runtime into /usr/lib/wsl/lib, so rocminfo sees
   only the CPU. install.sh's WSL hint and the experimental
   install_rocm_wsl_strixhalo.sh header/preflight now state the exact
   driver version (was a guessed ">=26.3.1"), bump ROCM_VER to 7.2.1, link
   AMD's radeon-ryzen docs, and document the known librocdxg caveat that
   usable VRAM is currently capped at the .wslconfig memory setting.

bash -n clean; install test suite 267 passed, 2 skipped.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* installer: hint when the AMD driver is too old for ROCm-on-WSL

Adds a detect-and-guide hook for the optional WSL-GPU path. An AMD GPU on
native Windows can also be used inside WSL2, but only with AMD Adrenalin
Edition >= 26.2.2 (the first production ROCDXG/WSL release). Native Windows
GPU works with any recent driver, so this is purely about enabling the WSL
path.

We intentionally do NOT auto-install the driver: AMD referrer-gates driver
downloads (scripted curl/Invoke-WebRequest are blocked) and does not publish
Adrenalin via winget, so no installer can reliably fetch it -- and silently
swapping a live display driver is risky. Instead we point the user at AMD's
official download page (one click), after which the existing WSL detection
lights up automatically.

- install.ps1: new Show-AmdWslDriverHint -- when an AMD GPU is present and the
  installed driver predates the 26.2.2 release (DriverDate < 2026-02-01),
  print a concise tip with the AMD download URL. Handles DriverDate as either
  a CIM DateTime or a WMI string. Suppress with UNSLOTH_SKIP_AMD_DRIVER_HINT=1.
- install.sh (WSL hint): add the direct Adrenalin 26.2.2 download URL and note
  that AMD downloads are referrer-gated (open in a browser).

Verified: hint fires on a Sept-2025 driver, auto-suppresses on >= 2026-02-01;
install.ps1 parses; install.sh bash -n clean; suite 267 passed, 2 skipped.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* install.ps1: refresh shell icon cache after creating the shortcut

After writing the Desktop / Start Menu .lnk, nudge Explorer to refresh
its icon (ie4uinit.exe -show). Without this, a stale icon cache can show
a blank shortcut icon until the next explorer restart -- most visible
when a shortcut of the same name was rewritten (e.g. a native install
followed by a WSL install, which previously shared the name; now they use
distinct names, but the cache nudge makes the icon appear immediately
regardless). Best-effort and wrapped in try/catch so it never fails the
install. The bundled unsloth.ico itself is valid (verified it renders).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* setup.ps1: don't silently CPU-build llama.cpp on an AMD GPU

For AMD, GPU acceleration comes from the lemonade ROCm prebuilt (it bundles
the ROCm runtime, no HIP SDK needed) and is the preferred/default path. The
source-build fallback is CPU-only -- a HIP/ROCm *source* build would need the
full HIP SDK + ROCm clang toolchain, which the prebuilt exists to avoid.

Previously, if an AMD-GPU host ever fell through to the source build (e.g. the
prebuilt could not be downloaded), it printed "building llama.cpp (CPU-only,
no NVIDIA GPU detected)" and quietly produced a CPU binary -- masking the lost
GPU acceleration. Now that case emits a loud [WARN] explaining the GPU prebuilt
is the AMD path and how to restore it (re-run / check network / set
UNSLOTH_LLAMA_RELEASE_TAG), so AMD never silently degrades to CPU.

No behavior change on the happy path: AMD still gets the GPU prebuilt (verified
on gfx1151: ggml-hip.dll bundled, ~80% GPU compute during inference). NVIDIA
(CUDA source build) and CPU-only hosts are unchanged.

setup.ps1 parses; install suite 267 passed, 2 skipped.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* uninstall: remove shared llama.cpp build, kill lock-holders, match WSL shortcut

Three gaps found by running a real uninstall on a native-Windows + WSL host;
all fixes are scoped to Unsloth-owned paths and no-op on the other pathways
(env/custom-root, NVIDIA/AMD/CPU, Mac) so nothing else regresses.

uninstall.ps1:
  - Remove the default-mode SHARED llama.cpp build + cache. setup.ps1 installs
    them at ~/.unsloth/llama.cpp and ~/.unsloth/.cache -- SIBLINGS of studio,
    not under it -- so deleting <studio> left hundreds of MB behind. Now removed
    explicitly, then ~/.unsloth is dropped ONLY if empty (never nukes unrelated
    content). No-op in env/custom mode (llama.cpp nests under the custom root,
    removed already) and when absent. UNSLOTH_LLAMA_CPP_PATH (user-owned) is kept.
  - New _StopProcessesLockingRoots: _StopStudioProcesses only matched the venv
    unsloth/python/studio exe, so it missed (a) llama-server.exe under llama.cpp
    and (b) an orphaned multiprocessing python fork that ran from the SYSTEM
    python but loaded a venv DLL (bitsandbytes) -- on Windows an open DLL handle
    blocks the directory delete, leaving a half-removed install. The new helper
    kills any process whose image path OR loaded module is under a target root
    (module scan scoped to python/unsloth/llama-server names; vendor-agnostic).
  - _RemovePath now retries (transient post-kill handle release).

uninstall.sh:
  - Remove the default-mode ~/.unsloth/llama.cpp + ~/.unsloth/.cache; rmdir
    ~/.unsloth only if empty.
  - WSL Windows-side shortcut cleanup now matches by TARGET (any
    "Unsloth Studio*.lnk" whose target launches wsl.exe), covering both the
    legacy "Unsloth Studio.lnk" and the new "Unsloth Studio (WSL - <distro>).lnk"
    -- and never removes a native-Windows shortcut (which launches wscript.exe).

uninstall.ps1 parses; uninstall.sh passes sh -n and bash -n.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* install.ps1: invalidate Win11 Start Menu tile cache after creating shortcut

The Start Menu shortcut kept showing a blank/generic icon even after the
Explorer icon-cache rebuild, because Windows 11's StartMenuExperienceHost
keeps its OWN pre-rendered tile-icon cache
(%LOCALAPPDATA%\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\
TempState\TileCache_*.bin + StartUnifiedTileModelCache.dat), separate from
Explorer's iconcache_*.db. ie4uinit and an explorer.exe restart do not touch
it, and they don't recycle the host -- so a rewritten same-name shortcut keeps
showing the first-rendered (often the generic wscript ">") tile until the host
restarts on its own.

Fix: after creating the shortcut, drop only the Start Menu RENDER caches
(TileCache_* + StartUnifiedTileModelCache.dat) and stop StartMenuExperienceHost
(Windows auto-relaunches it), so the tile re-resolves the real icon via the
shell image factory. start2.bin (the user's pinned layout) is deliberately
preserved. Guarded by Test-Path (Windows 10 has no such host -> skipped) and
wrapped in try/catch so it can never fail the install. Windows-only
(install.ps1); no effect on Linux/macOS/Studio.

Verified live: rendering the shortcut via IShellItemImageFactory::GetImage (the
API StartMenuExperienceHost uses) returns the Unsloth sloth icon, color-matched,
after this invalidation -- previously it returned the generic script tile.

install.ps1 parses; install suite 267 passed, 2 skipped.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* ROCm-on-WSL for AMD Strix Halo (gfx1151): auto-setup + runtime enablement

Make Unsloth Studio set up ROCm-on-WSL automatically for AMD Strix Halo
(Radeon 8060S / gfx1151) and use the GPU at runtime, validated end-to-end
on a Ryzen AI Max+ PRO 395 (ROCm 7.2.1 + librocdxg + Adrenalin Apr-2026):
rocminfo enumerates gfx1151, torch.cuda True, ~85.8 GB UMA pool.

Every change is a strict no-op for all other configs (NVIDIA/CUDA,
discrete + native-Linux AMD ROCm, macOS/MLX, Windows, CPU-only, non-Strix
WSL) and can never abort the installer.

- scripts/install_rocm_wsl_strixhalo.sh: rewrite to the validated recipe.
  Fixes that would have broken a working box: drop the /usr/lib/wsl/lib
  preflight (a working ROCDXG host has only d3d12/dxcore there); remove the
  obsolete rocr4wsl step (gone from the 7.2.1 repo; would hard-fail and also
  rips out the standard hsa-rocr ROCDXG needs); dynamic librocdxg soname
  (was hardcoded 1.1.0; build is 1.2.0); direct apt-repo install; Windows
  SDK auto-discovery; persist env to /etc/profile.d + ~/.bashrc; idempotent.
- install.sh: _maybe_bootstrap_rocm_wsl auto-offers/runs the helper when it
  detects a Strix Halo APU in WSL (/dev/dxg) with no ROCm runtime, then
  loads the env so detection routes to the gfx1151 wheels. Fast-path when
  already configured. Fix an inaccurate WSL hint line.
- studio/backend/main.py + worker.py: set HSA_ENABLE_DXG_DETECTION=1
  in-process before torch (gated on /dev/dxg AND librocdxg.so), so the
  worker uses the GPU even when launched outside a login shell. Mirrors the
  existing BNB_ROCM_VERSION injection.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* uninstall: clean up ROCm-on-WSL artifacts + Start Menu tile cache

- uninstall.sh: remove the ROCm-on-WSL helper artifacts -- the librocdxg
  build clone (~/.unsloth/librocdxg, which otherwise blocks the empty-dir
  rmdir of ~/.unsloth), the throwaway smoke-test venv, the persisted env
  (/etc/profile.d/unsloth-rocm-wsl.sh) and the ~/.bashrc block. The system
  ROCm userspace is a shared prereq like CUDA and is kept by default;
  UNSLOTH_UNINSTALL_ROCM=1 removes it too. No-ops on macOS / non-Strix Linux.
- uninstall.ps1: invalidate the Win11 Start Menu tile cache after removing
  the shortcut so its tile disappears promptly (mirrors install.ps1),
  preserving start2.bin.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* installer: accurate AMD ROCm messaging (HIP SDK optional, not required)

The Windows installer printed "HIP SDK not found - GPU-accelerated training
unavailable" / "ROCm wheels require the HIP SDK" whenever the HIP SDK was
absent. That is misleading: for a detected AMD GPU arch (gfx1151 etc.),
setup.ps1 installs AMD's bundled-runtime ROCm PyTorch wheels (repo.amd.com)
which ship their own ROCm runtime and do NOT need the HIP SDK -- verified
end-to-end (torch 2.11.0+rocm7.13.0, cuda True, QLoRA training on GPU) on a
Radeon 8060S with no HIP SDK installed.

Gate the GPU-detection + rocm-step messages on a detected gfx arch: when one
is known, state that GPU PyTorch uses bundled-runtime wheels and the HIP SDK
is optional; only when the arch is unknown fall back to the HIP-SDK hint.
Behavior (torch routing) is unchanged; this is messaging only. No-op for
NVIDIA/CUDA, HIP-SDK-present, and CPU paths (they hit earlier branches).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* installer: fix /opt/rocm data-loss + make WSL shortcut create/remove interop-robust

Two fixes from the 3-reviewer regression audit + live testing on a
systemd-enabled WSL distro (interop disabled):

F1 (data-loss, install_rocm_wsl_strixhalo.sh): the /opt/rocm symlink-repair
could force-delete a pre-existing REAL ROCm install. The guard only checked
that /opt/rocm is a real directory, not that it is the stray librocdxg stub.
Now it only touches /opt/rocm when it is NOT a real install (no bin/rocminfo,
bin/hipcc, or .info/version present), and MOVES it aside (rocm.unsloth-stub-bak)
instead of deleting it, so a wrong guess can never lose data.

WSL interop robustness (install.sh + uninstall.sh): both relied on
`command -v powershell.exe`, which is true even when WSL interop cannot EXECUTE
it (on systemd distros powershell.exe fails with "Exec format error"). Result:
the WSL shortcut silently failed to create (install) and to remove (uninstall).
- uninstall.sh: test that powershell.exe actually runs; if not, remove the
  "Unsloth Studio (WSL...).lnk" files directly via drvfs (/mnt/<drive>), which
  works without interop. The name is WSL-install-specific, so a native install's
  "Unsloth Studio.lnk" is never touched.
- install.sh: when the shortcut cannot be created, warn with the manual launch
  command + how to re-enable interop, instead of failing silently.

No behavior change on the interop-on path. The regression audit otherwise found
no regressions on Linux/Mac/Windows/CPU/NVIDIA install paths.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* install.sh: fast-path fully restores ROCm-on-WSL env when the drop-in is gone

Reinstall regression found by uninstall->reinstall testing: after a Studio
uninstall that removed /etc/profile.d/unsloth-rocm-wsl.sh but KEPT the shared
ROCm (the default), a non-login reinstall hit the bootstrap fast-path
(librocdxg present) and its else-branch only set HSA_ENABLE_DXG_DETECTION --
NOT PATH/LD_LIBRARY_PATH. So rocminfo was not on PATH, GPU detection failed,
and the installer fell back to CPU-only PyTorch.

Fix: when librocdxg is present but the env drop-in is missing, restore the
FULL env inline (HSA + TORCH_ROCM_AOTRITON_ENABLE_EXPERIMENTAL + PATH +
LD_LIBRARY_PATH) so rocminfo is found and detection routes to the GPU, and
recreate /etc/profile.d/unsloth-rocm-wsl.sh so future shells and the Studio
worker get it too. No change to the env-present fast-path or any other host.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* installer: clear Explorer icon cache so shortcut icons aren't blank

Root cause of the persistent blank Desktop + Start Menu icons: Explorer caches
each shortcut's icon in iconcache_*.db and does NOT re-read the .ico when a
same-name .lnk is recreated across reinstalls. The .ico and .lnk are correct
(the shell renders them non-blank via IShellItemImageFactory; the .ico has real
image data at 16/32/48/128 px), but the stale cache entry wins. The previous
fix only ran a weak `ie4uinit -show` + the Start Menu tile-cache clear -- it
never invalidated Explorer's icon cache, so the desktop icon stayed blank.

Fix (native install.ps1 New-StudioShortcuts AND the WSL shortcut path in
install.sh):
- ie4uinit -ClearIconCache (thorough; replaces -show as the primary refresh)
- SHChangeNotify(SHCNE_ASSOCCHANGED) to force a live desktop/taskbar refresh
  WITHOUT restarting explorer
- keep the Win11 Start Menu tile-cache invalidation (and add it to the WSL
  shortcut path too, preserving start2.bin)

Non-disruptive (no explorer restart). install.ps1 parses clean; install.sh
passes bash -n + dash -n; the heredoc-generated WSL PowerShell parses clean.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* installer: per-item SHChangeNotify(UPDATEITEM) reliably fixes blank icons

The blank Desktop/Start Menu shortcut icons are a stale Explorer PER-ITEM icon
cache: when a same-name .lnk is recreated across reinstalls, Explorer caches the
previously-resolved (often generic "white page") icon for that item and won't
re-extract the .ico on its own. The .ico and the .lnk's IconLocation are correct
(every icon API renders the sloth) -- only Explorer's cached display is stale.

The previous refresh (ie4uinit -ClearIconCache + a GLOBAL SHCNE_ASSOCCHANGED
broadcast) does NOT recover a stale item -- confirmed by reproduction. The
reliable, NON-disruptive fix (no explorer restart) is a PER-ITEM
SHChangeNotify(SHCNE_UPDATEITEM, SHCNF_PATHW, <lnk path>) for each created
shortcut, which forces Explorer to re-read that exact item's icon.

Verified end-to-end: deliberately staled a shortcut to the generic icon, ran the
installer's exact new refresh code, and the sloth icon recovered with NO explorer
restart (confirmed by capturing the live desktop via PrintWindow).

Applied to both native install.ps1 (New-StudioShortcuts) and the WSL shortcut
path in install.sh. Still clears the on-disk icon cache (ie4uinit) and the Win11
Start Menu tile cache (preserving start2.bin).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* uninstall: remove leftover llama.cpp .staging root so ~/.unsloth is cleaned

The llama.cpp atomic-install staging root (install_llama_prebuilt.py
INSTALL_STAGING_ROOT_NAME=.staging) is a sibling of the llama.cpp install
dir (~/.unsloth/.staging in default mode). It is normally pruned after a
successful activate, but an interrupted or retained build can leave a
<name>.staging-XXXX tree behind. The uninstallers removed llama.cpp and
.cache but not .staging, so the final empty-dir cleanup of ~/.unsloth failed
and the directory lingered. Reproduced on WSL (Ubuntu-24.04) where an empty
llama.cpp.staging-XXXX dir kept ~/.unsloth alive after uninstall.

Remove ~/.unsloth/.staging in both uninstall.sh and uninstall.ps1. No-op in
env/custom mode (staging nests under the custom root removed already) and
when absent. Cross-platform fix (the staging logic is platform-agnostic).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* installer: WSL-absent hint + fix here-string lint false positive

install.ps1: in the AMD WSL-ROCm driver hint, detect when wsl.exe is absent
and add a one-line "wsl --install -d Ubuntu-24.04" pointer so a Strix Halo
user with no WSL yet gets an actionable next step (the hint previously assumed
an Ubuntu-24.04 distro already existed). Best-effort, informational only.

test_rocm_support.py: test_no_here_strings did a crude substring check that
false-positived on the conda-style block marker
printf '# <<< Unsloth ROCm-on-WSL (gfx1151) <<<' -- a string literal written
into the /etc/profile.d drop-in, also used as a sed delimiter pair by
uninstall.sh, not a here-string. Strip quoted spans before the check so the
lint still catches a real here-string operator but ignores quoted literals.
install.sh remains POSIX-clean (sh -n / dash -n / bash -n all pass).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* installer: address PR review comments (gfx1150 mapping, amd-smi opt-out, WSL bootstrap, SDK path, make)

Apply the valid bot review findings on #5940; reject the ones that don't hold.

Fixed:
- AMD name->gfx table (setup.ps1 + install.ps1): Radeon 890M and Ryzen AI 9 HX
  370/375 are Strix POINT (gfx1150), not Strix Halo (gfx1151). Move 890M / HX 37x
  / AI 9 HX to the gfx1150 row and drop the bogus HX 38x pattern (no such Strix
  Halo SKU). Matches the runtime classifier in worker.py (890M/880M -> gfx1150;
  8060S/8050S -> gfx1151). Prevents Strix Point hosts from getting the wrong ROCm
  prebuilt/wheels.
- amd-smi opt-out (setup.ps1 + install.ps1): an explicit UNSLOTH_ENABLE_AMD_SMI=
  0/false/no/off now wins over the HIP-SDK heuristic, so a host with a HIP SDK
  binary but a broken runtime no longer gets the DiskPart/UAC prompt the opt-out
  exists to avoid.
- amd-smi warning probes (install_python_stack.py): _has_rocm_gpu and
  _detect_amd_gfx_codes now gate amd-smi behind _amd_smi_allowed() (and pass
  _amd_smi_env()), closing the last unguarded amd-smi spawn on Windows.
- WSL ROCm bootstrap (install.sh): the "already-usable ROCm?" early return now
  requires rocminfo to enumerate the real gfx1151 agent instead of the generic
  _has_amd_rocm_gpu (whose broad gfx[1-9][0-9] match accepts a fallback
  "gfx11-generic" ISA), so a Strix Halo box missing the ROCDXG bridge is no longer
  skipped. The shared helper is untouched (no gfx90a regression).
- install_rocm_wsl_strixhalo.sh:
  * Quote-safe Windows SDK discovery: the old for-in-$(ls -d "...Program Files
    (x86)/...") word-split on the space and never matched; use find + read loop.
  * Add `make` to apt prereqs (cmake only recommends it; minimal images lacked it
    and the librocdxg `make -j` build failed).
  * Verification requires gfx1151 exactly (not gfx1[0-9]) so a generic ISA or an
    unrelated RDNA GPU can't pass while the real GPU is absent.

Reviewed but NOT changed:
- "Forward inferred ROCm arch without HasROCm" (setup.ps1): already correct --
  --rocm-gfx is forwarded under `if ($script:ROCmGfxArch)`, not `if ($HasROCm)`.
- "Route inferred arch into install.ps1 torch path": not a bug -- install.ps1
  installs CPU torch as a base by design and setup.ps1 swaps in the ROCm wheel for
  the inferred arch (gate `($HasROCm -or $ROCmGfxArch) -and cpu`); verified live
  the native install ends on torch 2.11.0+rocm7.13.0.
- "$p null guard after Start-Process" (install.ps1/setup.ps1): redundant -- the
  amd-smi runner uses [Process]::Start wrapped in try/catch, so a null process
  already returns "" with LASTEXITCODE=1 (no uncaught exception).
- "ls -> find for /usr/lib/wsl/lib" (gemini): stale -- that heuristic was removed;
  only a comment about it remains.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* installer(rocm-wsl): auto-install the Windows 11 SDK via winget (fewer manual steps)

librocdxg's build needs the Windows SDK 'shared' headers on the Windows host.
Previously the helper just die()d with "install the Windows 11 SDK and re-run" if
they were missing -- a manual prerequisite that broke the otherwise-seamless
`curl ... install.sh | sh` one-liner on Strix Halo.

Now, when the headers aren't found, the helper installs the Windows 11 SDK on the
Windows host from inside WSL via winget (powershell.exe interop), then
re-discovers them. The SDK installer elevates -> ONE UAC prompt on the Windows
desktop; the headers appear under /mnt/c immediately (drvfs is live, no reboot).
The user already consented to the ROCm-on-WSL setup, so no extra prompt is added
beyond the OS UAC gate.

- New _find_win_sdk (space-safe find of the newest installed SDK 'shared' dir)
  and _install_windows_sdk_via_winget helpers.
- winget IDs tried newest-stable first: Microsoft.WindowsSDK.10.0.26100, then
  .22621. The presence of the headers (re-check) is the source of truth, not
  winget's exit code. </dev/null so winget never consumes a piped `curl|sh` stdin.
- Best-effort + non-fatal: interop-off / no-winget / declined-UAC all fall
  through to the existing clear manual-install die(). Opt out with
  UNSLOTH_SKIP_WIN_SDK_INSTALL=1.

Removes the last avoidable manual step from the WSL Strix Halo path; only the AMD
Adrenalin driver (AMD referrer-gates the download) remains manual. Verified
_find_win_sdk resolves the spaced "Program Files (x86)" path; bash -n clean; all
winget flags validated against `winget install --help`.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* installer(amd): gate install-time amd-smi probe to fix DiskPart UAC prompt

install_python_stack.py's Windows "AMD GPU detected but ROCm torch missing"
warning probe ran `amd-smi list` whenever amd-smi was on PATH -- and amd-smi
ships in C:\Windows\System32 with the AMD Adrenalin driver -- without the
_amd_smi_allowed() gate that every other amd-smi call site in the file uses.
On Adrenalin-only hosts (no HIP SDK) amd-smi elevates a child at runtime and
pops a UAC/DiskPart prompt that __COMPAT_LAYER=RunAsInvoker cannot suppress
(amd-smi's manifest is asInvoker). The probe also ran before the
ROCm-torch-installed check, so it fired on every Windows AMD install.

Gate it behind _amd_smi_allowed() and pass _amd_smi_env(), matching
_has_rocm_gpu()/_detect_amd_gfx_codes(). When skipped, the only loss is the
best-effort "AMD GPU detected" note on HIP-SDK-less hosts.

Adds a per-function AST regression test asserting every function in
install_python_stack.py that names the amd-smi command and spawns a subprocess
also references _amd_smi_allowed() (flags the pre-fix code; passes after).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* studio(cli): fix `unsloth studio stop` crashing on Windows

`stop` used the POSIX `os.kill(pid, 0)` liveness probe, but on Windows
CPython raises OSError (WinError 87, "The parameter is incorrect") for
*every* pid -- alive or dead. `stop` only catches ProcessLookupError /
PermissionError, so the OSError propagated and the command crashed with
a traceback before ever reaching its (correct) `taskkill /F` path.

Add a cross-platform `_pid_alive(pid)` helper (tasklist on Windows,
signal-0 elsewhere) and use it for both the pre-check and the post-kill
wait loop. The actual kill path is unchanged.

Verified on Windows (Python 3.13): os.kill(pid,0) raises WinError 87 for
both a live and a dead pid; `_pid_alive` returns True/False correctly and
the full stop() flow (alive -> taskkill -> dead -> "stopped") passes
end-to-end against a throwaway process.

Adds tests/studio/test_cli_studio_stop_windows.py (AST guard against a
bare os.kill(pid,0) liveness probe + mock-only _pid_alive behaviour for
the win32 tasklist branch and the POSIX signal-0 branch).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* installer(amd): fix install.sh name->arch table misrouting Strix Point to gfx1151

The bash name->arch inference table in install.sh placed Strix Point
identifiers (Radeon 890M, "Ryzen AI 9 HX 370/375", "AI 9 HX") in the
gfx1151 (Strix Halo) row, diverging from the install.ps1 / setup.ps1
PowerShell tables which correctly map them to gfx1150. It also carried a
stray "HX 38" token absent from the PowerShell source-of-truth.

Align install.sh with the PowerShell tables:
  gfx1151 row: 8060S|8050S|8040S|Strix Halo|Ryzen AI Max|AI Max
  gfx1150 row: 890M|880M|860M|840M|Strix Point|Krackan|HX 37|AI 9 HX|...

Impact is low (the bash table only feeds the display label _gpu_disp_gfx
and the "set UNSLOTH_ROCM_GFX_ARCH=..." hint; wheel selection is driven
by the detected ROCm version, not this name string) but a Strix Point
user would otherwise see/copy the wrong gfx arch.

Add a parity test (test_install_sh_name_arch_agrees_with_ps_for_strix_and_non_amd)
that parses install.sh's case table and asserts Strix Halo->gfx1151,
Strix Point->gfx1150, RX 7700S->gfx1102, and NVIDIA/Intel->no match,
cross-checking against install.ps1 (the previous parity test only
compared install.ps1 <-> setup.ps1, missing install.sh).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* setup.ps1: keep prebuilt-llama ownership guard within the test's block window

The AMD additions to the prebuilt-llama.cpp block (the windows-hip vs
windows-cpu existing-install kind validation) pushed the
install_llama_prebuilt.py invocation to ~1999 chars after the
"installing prebuilt llama.cpp bundle (preferred path)" anchor, right at
the edge of the 2000-char window that
test_setup_ps1_prebuilt_llama_cpp_has_ownership_guard slices -- so the
helper string was truncated and the test failed with "substring not
found" (CI: Repo tests (CPU)).

The ownership-guard invariant (Assert-StudioOwnedOrAbsent precedes the
install_llama_prebuilt.py call) was already satisfied; only the proximity
to the anchor regressed. Move the "installing prebuilt..." substep to
immediately before the install (after the existing-install pre-cleanup),
which also reads better (validate/clean existing -> then "installing"),
shrinking anchor->helper from 1999 to 413 chars. Behaviour is unchanged
(console message ordering only).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* install.sh: auto-run Strix Halo ROCm-on-WSL setup by default

`curl -fsSL https://unsloth.ai/install.sh | sh` should make a Strix Halo
(gfx1151) GPU usable inside WSL with no extra commands. Previously the
ROCm-on-WSL bootstrap was opt-in: it required UNSLOTH_ROCM_WSL_AUTO=1 or an
interactive [Y/n] at a TTY, and silently skipped under a pipe (no /dev/tty),
so the piped one-liner never set the GPU up automatically.

Flip it to auto-by-default for the single narrow case the existing guards
allow (WSL + Strix Halo + /dev/dxg + no usable ROCm yet) -- exactly the GPU
setup the user ran the installer for. Opt out with
UNSLOTH_SKIP_ROCM_WSL_SETUP=1. The Tauri desktop app keeps its own consent UI
(only auto-runs when it passes UNSLOTH_ROCM_WSL_AUTO=1). All hardware/OS
guards are unchanged, so non-Strix / non-WSL / NVIDIA / native-Linux / macOS /
CPU paths are unaffected.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* PR comments: condense to be succinct (comments/docstrings only)

Shorten the verbose explanatory comments and docstrings this PR added across
the installer, scripts, backend shims, CLI, and tests -- tighter, fewer lines,
while preserving every non-obvious "why" (os.kill WinError 87, amd-smi
RunAsInvoker/UAC, /dev/dxg + librocdxg gating, the ROCm-on-WSL bootstrap guard
chain, ownership guards, etc.). No executable code, string literals, messages,
or behavior changed.

Verified comments-only: docstring-normalized AST equality (Python, 9 files),
non-comment token equality (PowerShell, 3 files), comment-stripped diff +
sh -n / bash -n (shell, 3 files). Behavior re-confirmed: get_torch_index_url +
gfx name->arch table 44/44 under dash & bash; rocm_support / pr5940_followups /
cli_studio_stop tests green.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Installer: address PR review (amd-smi opt-out, pipefail, multi-distro, non-root)

Fixes valid findings from the Codex/Gemini PR review:
- install.ps1 / setup.ps1: gate the `amd-smi version` ROCm-version fallback with
  $amdSmiAllowed so UNSLOTH_ENABLE_AMD_SMI=0 opt-out is honored (the device
  probe was gated but this fallback wasn't), avoiding the DiskPart/UAC prompt.
- install_rocm_wsl_strixhalo.sh: make the post-verification rocminfo summary
  best-effort (|| true) so head's early pipe-close under `set -o pipefail` can't
  fail the bootstrap after gfx1151 was already enumerated; pin the Windows SDK
  `winget install` to --source winget (matches the msstore-cert fix rationale).
- install.ps1: python.org fallback installs the py launcher per-user
  (InstallLauncherAllUsers=0, avoids admin), and derives the fallback full
  version from the requested minor so a non-default UNSLOTH_PYTHON (e.g. 3.12)
  isn't silently replaced with 3.13 when the listing is unreachable.
- install.sh: recreate /etc/profile.d/unsloth-rocm-wsl.sh via `sudo tee` for a
  non-root reinstall (a plain redirect failed silently, dropping the ROCm env).
- uninstall.sh: scope WSL Windows-side shortcut removal to the current
  WSL_DISTRO_NAME (per-distro name or -d "<distro>" arg) so uninstalling one
  distro no longer deletes other distros' launchers.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Studio ROCm Windows: fix field-reported issues from Strix Halo testers

Four fixes from PR #5940 field reports (Win11 native, gfx1151):

1. bitsandbytes arch-probe spam: bnb's get_rocm_gpu_arch() runs
   hipinfo.exe via subprocess PATH at import; the AMD torch wheel ships
   hipInfo.exe in the venv Scripts dir, which is only on PATH for
   activated venvs. Every bnb import logged "Could not detect ROCm GPU
   architecture: [WinError 2]" ERROR + WARNING (even with the HIP SDK
   installed, whose bin dir is not on PATH either). Prepend the Scripts
   dir to PATH before bnb imports in main.py, worker.py, and
   install_python_stack.py, gated on the file existing (only AMD wheels
   ship it). Verified on gfx1151: ROCM_GPU_ARCH now resolves to gfx1151
   with zero errors.

2. OOM-guard double-tax on native Windows unified APUs: mem_get_info's
   total is the WDDM budget the driver grants HIP (BIOS carve + ~half
   of remaining RAM) -- the OS share is already outside it. The 0.80
   unified cap on top denied loads that fit (field report: 48.49 GiB
   budget -> "38.79 GiB allowed" OOM for a 47.29 GiB load with 48.08
   free). Use 1.0 on win32 unified; Linux keeps 0.80, discrete 0.90.

3. "Missing VRAM" confusion: log the WDDM budget vs physical RAM with
   the fix (BIOS UMA frame buffer / AMD Software Variable Graphics
   Memory) when the grant is under 75% of RAM, so a 48 GiB cap on a
   96 GiB box reads as policy, not a Studio bug.

4. llama-server fit-step crash (Qwen3.6-27B-MTP + mmproj, lemonade
   gfx1151): --fit defaults to 'on' upstream, so the fit step runs even
   when Studio already placed the model via -ngl -1, and aborts in
   ggml-cuda.cu on some ROCm hosts. Retry the spawn once with --fit off
   when the server crashes during startup and Studio's own VRAM math
   had placed the model (never when use_fit or an explicit fit flag was
   passed). Also keep the TAIL of crash output in the error log (the
   diagnostic line prints last; head-truncation cut exactly that) and
   reference the full on-disk log.

Verified live on Radeon 8060S: bnb import clean, Qwen3.5-4B-MTP loads
and generates through the new spawn loop, stub-crash retry appends
--fit off and recovers, fraction probes confirm WDDM overcommit and
sub-1.0-only enforcement on current AMD wheels.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio ROCm Windows: GPU-name fallbacks so nothing depends on amd-smi

amd-smi does not reliably exist on Windows: the HIP SDK never ships a
CLI, inbox Windows Update drivers do not, and only some full Adrenalin
packages drop amd-smi.exe into System32 (field report: fresh Win11 +
Adrenalin + HIP SDK, still no amd-smi anywhere). Make every consumer
work without it:

- install_python_stack._detect_windows_gfx_arch: two new probes after
  hipinfo/amd-smi -- (2b) the venv Scripts hipInfo.exe shipped by AMD
  torch wheels (drives `studio update` on driver-only hosts), and (4) a
  last-resort GPU marketing-name -> gfx table via WMI
  (Win32_VideoController), mirroring setup.ps1's $nameArchTable so a
  standalone repair resolves the arch with zero AMD tooling installed.

- install_llama_prebuilt._resolve_exe: also probe the venv Scripts dir
  so a standalone rerun finds hipInfo.exe without HIP_PATH.

- hardware/amd.py _run_amd_smi: which() guard before spawning --
  absence now disables the poller in one step instead of burning the
  3-strike circuit breaker on FileNotFoundError; corrected the stale
  comment claiming Adrenalin ships amd-smi.

Simulated against the real detection functions on gfx1151: amd-smi
absent, present-but-crashing (exit 1), present-but-hanging (60s sleep
vs 5-10s probe timeouts), and hard opt-out -- all resolve gfx1151, no
exceptions, bounded time. Full adversarial install (broken amd-smi
stub first on PATH + UNSLOTH_ENABLE_AMD_SMI=1, fresh uninstall first):
exit 0, name-table arch inference, lemonade gfx1151 b1292 prebuilt,
torch 2.11.0+rocm7.13.0 cuda_avail=True on the 8060S, Studio boots
healthy and stops cleanly.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: per-attempt llama-server log names + amd-smi test portability

Found by cross-platform simulation of the --fit off retry (Windows +
Linux sandboxes, real load_model with stub servers):

- llama-server log filename now carries the spawn-attempt index. The
  retry can respawn within the same epoch second; reusing the name
  opened the same file with "w" and truncated the crash log the retry
  warning had just pointed the user at (proven with a frozen
  time.time: one file, crash evidence gone; with the suffix both
  attempts keep their logs). Regression-pinned in
  test_llama_cpp_wait_for_health.py.

- test_amd_primary_gpu_with_mock now mocks shutil.which alongside
  subprocess.run: the amd-smi absence guard which()-checks before
  spawning, so on hosts without a real amd-smi (Linux CI, driver-only
  Windows) the subprocess mock was never reached and the test failed.
  Surfaced by running the suite in a clean Linux sandbox.

Simulation coverage on both OSes: 67-case platform/edge matrix
(real shipped code blocks under win32/linux/darwin spoofs: OOM-guard
fractions + VGM-hint boundary, bnb PATH-prepend gates, retry
eligibility incl. equals-forms and decoy tokens, GPU-name table
adversarial set, WMI fallback without powershell, monitor absence
semantics), 6-scenario live retry matrix (crash-once/crash-always/
exit-zero/explicit-fit/hang/log-collision) against real llama-server
spawns on Windows and WSL (GPU success legs on the 8060S), and a
3-engine browser matrix (chromium/firefox/webkit) driving the live
backend's health + authed /v1 chat completion.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: classify unified-memory via props.is_integrated first

Align the ROCm OOM-guard classifier with PR #5988's UMA gate: consult
hipDeviceProp_t.integrated (props.is_integrated) before the hardcoded
arch set. Strictly additive -- truthy upgrades to unified; 0/absent
falls through to the existing gfx1150/gfx1151 + device-name logic, so
wheels that omit or zero the field cannot downgrade the known APU set.
Extends correct unified-cap treatment to APUs outside that set (e.g.
gfx1103 Phoenix iGPUs) and keeps Studio's two unified-memory consumers
on one driver signal. Verified live on gfx1151 (is_integrated == 1 on
the AMD Windows wheel -> ('gfx1151', True) via the new path).

* AMD detection: probe rocminfo with HSA_ENABLE_DXG_DETECTION and sync setup.sh gfx table

Fleet validation on a Strix Halo WSL2 box showed the system rocminfo
(HSA 1.18, ROCm 7.2.1) only enumerates the GPU over /dev/dxg when
HSA_ENABLE_DXG_DETECTION=1, and that rocminfo can sit at /opt/rocm/bin
off PATH outside login shells. Detection probes that miss either of
these report no GPU on a working ROCDXG host and select the CPU build
even though the lemonade bundle offloads fine (95.7 tok/s measured vs
64.5 CPU on the same laptop). Seed the env (a no-op on bare metal) and
the PATH fallback in install.sh, studio/setup.sh, and the installer's
Linux rocm probe, mirroring what main.py/worker.py already do for the
runtime.

Also sync studio/setup.sh's name->gfx table with install.sh: 890M and
the HX 37/AI 9 HX SKUs are Strix Point (gfx1150, not gfx1151), RX 7700S
must match gfx1102 before the gfx1100 row, and the RDNA2/workstation
rows were missing. New parity test pins the two bash tables together so
they cannot drift again.

* Studio: persist server session logs + native-crash stacks to disk

Field report (Strix Halo, 96 GB UMA carve, WSL and native Windows):
"the studio just terminates without a warning". A native crash in the
GPU runtime kills the process with no Python traceback, and a desktop-
shortcut console closes before anything can be read. The server only
ever logged to the console, so there was nothing to send back.

run_server now tees stdout/stderr to
~/.unsloth/studio/logs/server/server-<ts>-pid<n>.log (console behavior
unchanged; file copy is best-effort), arms faulthandler at the same
file so access violations / SIGSEGV leave a stack trace on disk, and
exports PYTHONFAULTHANDLER=1 so training workers inherit crash dumps
on their captured stderr. Armed before `from main import app` so even
import-time failures leave evidence. Keeps the newest 20 session logs;
opt out with UNSLOTH_STUDIO_NO_FILE_LOG=1. Prints "Session log: <path>"
at startup so users know what to attach.

Verified on this box: a forced real segfault (faulthandler._sigsegv)
leaves the full session output plus "Fatal Python error: Segmentation
fault" and the thread stack in the file while the console shows
nothing; a normal server boot captures the startup banner and serves
health as before.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* AMD probe: honor a pre-set HSA_ENABLE_DXG_DETECTION value

Match the shell helpers, which use the parameter-default form: a user
who exports HSA_ENABLE_DXG_DETECTION=0 to deliberately hide the GPU
from DXG detection should not have the probe override it.

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: danielhanchen <michaelhan2050@gmail.com>
2026-06-10 04:24:49 -07:00
Daniel Han
187144d4e7
Reduce and tighten code comments and docstrings repo-wide (#6095)
Trim and tighten code comments and docstrings across the repository. Comment-only: every changed file verified code-identical to main via AST/token comparison.
2026-06-08 23:09:51 -07:00
Daniel Han
8292e699e4
Studio: make code comments and docstrings more succinct (#6029)
Trim and tighten code comments and docstrings across studio/ Python. Comment-only: every changed file verified code-identical to main via AST/token comparison.
2026-06-08 23:07:28 -07:00
Daniel Han
3ce187da02
Formatting: ruff line-length 100, kwarg-spacing passes, drop blank after short local imports (#6079)
Raise ruff line-length to 100 and extend the local pre-commit format pipeline (def-signature magic-comma normalization, short multi-line assert collapse, kwarg '=' spacing, blank-line-after-short-import removal, adjacent string-literal / f-string+plain merge, redundant-pass pruning). Every transform re-checks the file AST and is dropped if it would differ; the whole-repo reformat is verified AST-identical per file and idempotent.
2026-06-08 04:24:13 -07:00
Daniel Han
ae5d60728b
Studio: cover B300 (sm_103) with the Linux prebuilt bundles (#5930)
* Studio: cover B300 (sm_103) with the Linux prebuilt bundles

sm_103 (B300 / GB300 Blackwell Ultra) was in no bundle's supported_sms,
so those hosts fell through to a slow source compile. The newer and
portable bundles already ship base compute_100 PTX, which the driver
JIT-compiles forward to sm_103, so list sm_103 alongside sm_100 in those
bundles and let B300 install the prebuilt.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-06-01 08:17:50 -07:00
Daniel Han
86b1918056
Studio: forward the resolved AMD gfx arch to the prebuilt installer (#5923)
setup.sh and setup.ps1 resolve the AMD gfx target (rocminfo/hipinfo/amd-smi,
name inference, or UNSLOTH_ROCM_GFX_ARCH) but never passed it to
install_llama_prebuilt.py. The installer re-probed on its own and, on hosts where
hipinfo/amd-smi cannot report the arch (amd-smi-only Linux, HIP-runtime-only
Strix Halo, name-inferred GPUs), left rocm_gfx_target unset. The lemonade HIP
prebuilt selection needs that arch, so those hosts got no GPU prebuilt and fell
back to a source build.

Add a --rocm-gfx argument (defaulting to UNSLOTH_ROCM_GFX_ARCH) and fold it into
the host profile via _apply_host_overrides: a forwarded gfx is authoritative
(setup already applied visible-device selection) and implies has_rocm. setup.sh
and setup.ps1 now forward their resolved arch.

Add unit tests for _normalize_forwarded_gfx and _apply_host_overrides, plus
source checks that both setup scripts forward --rocm-gfx.
2026-06-01 06:55:35 -07:00
Daniel Han
172d9d1c8e
Studio: source-build arm64 Linux GPU hosts, with a CPU prebuilt fallback (#5924)
* Studio: fall back to source build for arm64 Linux GPU hosts

setup.sh routes a Linux host with any GPU tool to the unslothai/llama.cpp fork,
which publishes only linux-x64 bundles. On an arm64 host with a GPU (GH200,
GB200, DGX Spark) the resolver then selected an x64 CUDA bundle, which cannot run
on aarch64. Routing those hosts to ggml-org instead would install a CPU-only
arm64 build, silently losing the GPU.

Guard resolve_simple_install_release_plans so an arm64 Linux host on the fork
raises PrebuiltFallback before any release is fetched, letting setup.sh do a
source build that actually targets the GPU. x86_64 hosts and arm64 CPU hosts
(which route to ggml-org) are unaffected.

Add tests covering the arm64 fork raise, the x86_64 pass-through, and the arm64
CPU ggml-org path.

* Studio: install ggml-org arm64 CPU prebuilt when the arm64 GPU source build fails

Per review of #5924: arm64 Linux GPU hosts have no CUDA prebuilt anywhere (the
unslothai fork is x64 only, ggml-org ships no Linux CUDA build), so they source
build for the GPU. If that build produces no binary, the host was left without
llama.cpp.

Add a --cpu-fallback flag to install_llama_prebuilt.py that drops the host GPU
attributes so the CPU prebuilt for the host arch is selected (a GPU host cannot
otherwise pick the CPU bundle). setup.sh calls it against ggml-org as a last
resort for arm64 Linux when the source build degraded, installing the
ubuntu-arm64 CPU build instead of leaving the host with no llama.cpp.

Add tests: force_cpu drops GPU attrs before planning, a CPU-forced arm64 host
selects the ggml-org ubuntu-arm64 bundle, and setup.sh wires the fallback.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-06-01 06:35:43 -07:00
Daniel Han
f695fbd0fe
Studio: extend the pinned Blackwell GPU fallback to CUDA 13.0 drivers (#5920)
The pinned b9360 cuda-13.1 Windows fallback for Blackwell (sm_120) only fired
when the driver advertised CUDA >= 13.1. The mainstream Blackwell branch ships
the r580 driver that reports CUDA 13.0, so those hosts missed the pin, were
gated off the in-release 13.3 build, and dropped to the CPU-only cuda-12.4
build.

b9360's binary is native sm_120a SASS (no PTX, so no JIT) and its bundled
runtime is cuda-13.1 cudart; both run on a 13.0 r580+ driver under CUDA
minor-version compatibility. Lower _PINNED_BLACKWELL_DRIVER_FLOOR to (13, 0) so
the pin covers the 13.0 branch too. The generic published-runtime gate stays
conservative (an unverified in-release 13.1 build is still gated off 13.0); only
the specific, hash-pinned, SASS-verified b9360 build is extended.

Refs #5887.
2026-06-01 06:35:28 -07:00
Daniel Han
ab7a7f9f1c
Studio: match the Linux llama.cpp prebuilt to the runtime cudart major (#5914)
* Studio: match the Linux llama.cpp prebuilt to the runtime cudart major

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-06-01 02:55:57 -07:00
Daniel Han
dad2695fde
Studio: pin the last pre-macOS-26 llama.cpp prebuilt instead of walking back (#5896)
* Studio: pin the last pre-macOS-26 llama.cpp prebuilt instead of walking back

ggml-org moved their macOS build runner to macOS 26 (Tahoe) at b9428, so
b9428 and every newer upstream prebuilt is stamped minos 26 and fails to
dyld-load on macOS 14 / 15. #5883 handled this by walking back release by
release at install time.

Replace that with a deterministic pin: a host below macOS 26 selects b9415
directly (the last upstream build stamped below 26: arm64 minos 14, x64
minos 13.3), so it loads on macOS 13.3 / 14 / 15 / 26. Hosts on macOS 26+
and unknown-version hosts keep latest selection unchanged.

Only the ggml-org upstream path is pinned; the unslothai/llama.cpp fork
ships its own minos-13.3 prebuilts (#5893), so the pin is a no-op there and
goes dormant once macOS routes to the fork. The Mach-O minos preflight from
#5883 stays as a post-download backstop.

Refs #5883, #5893.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* docs: fork ships arm64 minos 14 / x64 minos 13.3, not uniform 13.3

The per-slice fork producer pins arm64 to 14.0 and x64 to 13.3; update the
pinned_macos_release_tag docstring to match. No behavior change.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: danielhanchen <michaelhan2050@gmail.com>
2026-05-31 06:18:30 -07:00
Daniel Han
5076837cf0
studio: make NVIDIA prebuilt selection track CUDA version bumps (Windows + Linux) (#5879)
Make the NVIDIA prebuilt selection version-dynamic and driver-gated on both the
Windows (ggml-org) and Linux (unslothai/llama.cpp) paths, so CUDA version bumps
are handled with no code change while staying safe across driver versions.

- Derive candidate CUDA runtime lines from the driver major; pick the highest
  upstream-published minor the driver can actually run, so a sub-13.3 driver is
  never handed an unguaranteed 13.3 build.
- Pin b9360's cuda-13.1 build (immutable, hash-verified) as a GPU fallback for a
  Blackwell host on a 13.1/13.2 driver that the in-release 13.3 build gates off,
  on both the simple and published install paths. Dormant for every other host
  and self-disabling once upstream ships a driver-runnable build again.
- Seed the published-path ordering from the release's real published minors so a
  future CUDA major is selectable with no code change.

Refs #5861, #5817, #5807, #5858, #5854, #5826, #5887.
2026-05-31 01:15:02 -07:00
Daniel Han
366937de44
studio: pick a macOS llama.cpp prebuilt that loads on the host OS (#5883)
Make macOS llama.cpp prebuilt selection host-OS-version aware: skip a prebuilt whose minimum-OS exceeds the host and walk back to the newest release that loads (macOS 26 keeps latest; 14/15 land on a compatible older release). Source-build fallback pins CMAKE_OSX_DEPLOYMENT_TARGET=13.3. CI: binary-load assertion plus a macos-14/15/26 install matrix. No change to Linux/Windows or CUDA selection.
2026-05-31 00:59:25 -07:00
Leo Borcherding
61df3aaef0
feature/use lemonade-sdk llamacpp-rocm binaries (#5303)
* feat(studio): use lemonade-sdk/llamacpp-rocm per-GPU prebuilts for ROCm hosts

For AMD GPUs that rocminfo/hipinfo reports a recognised gfx target
(gfx103X / gfx110X / gfx1150 / gfx1151 / gfx120X), resolve_lemonade_rocm_choice()
now fetches the latest lemonade-sdk/llamacpp-rocm release and returns the
matching per-architecture zip, bundling all required ROCm runtime libs.

This runs before the existing upstream ggml-org combined-ROCm tarball fallback
on Linux and before the upstream HIP zip on Windows, so both platforms benefit
from the more targeted build when available.

Changes:
- Add LEMONADE_ROCM_REPO / LEMONADE_ROCM_RELEASES_API constants
- Add HostInfo.rocm_gfx_target populated from rocminfo (Linux) / hipinfo (Windows)
- Add _LEMONADE_GFX_FAMILIES prefix map and _lemonade_gfx_family() helper
- Add resolve_lemonade_rocm_choice() that fetches latest lemonade release and
  constructs the llama-{tag}-{os}-rocm-{gfxFamily}-x64.zip asset URL
- Wire into resolve_upstream_asset_choice() for both Linux (ubuntu) and Windows paths

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Honor pinned llama.cpp tag in lemonade ROCm resolver

The resolver always fetched lemonade-sdk/llamacpp-rocm's /releases/latest,
ignoring the upstream llama.cpp tag the caller had pinned. On a reproducible
install where the user requested 'b1260' that meant we would silently pick
up whatever lemonade had published as latest at install time, with no way
to roll back to the matching tag.

Lemonade tags llama.cpp upstream tags 1:1, so:
  - When llama_tag is unset or 'latest', keep hitting /releases/latest.
  - When llama_tag is pinned (e.g. 'b1260'), hit /releases/tags/b1260.
  - When the pinned tag is not published by lemonade (404), skip silently
    and let the caller fall through to the upstream tarball -- this keeps
    pinned installs reproducible instead of drifting.

resolve_lemonade_rocm_choice now takes llama_tag (default 'latest' for
backward compatibility) and both call sites in resolve_upstream_asset_choice
forward the upstream llama_tag to it.

Note: this PR still has open integration concerns flagged in review --
the simple-policy planner and approved-checksum manifest don't yet route
or accept lemonade assets. Those are larger changes and not in scope for
this commit; addressing the pinned-tag drift independently because it is
small, localized, and self-contained.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Add mock test for lemonade ROCm prebuilt asset resolution

Validates GPU family mapping and that resolve_lemonade_rocm_choice
returns real lemonade release URLs for all supported gfx targets on
both Linux and Windows, without requiring AMD hardware.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Wire lemonade ROCm prebuilts into the simple-policy install path

setup.sh invokes install_llama_prebuilt.py with --simple-policy, which
dispatches through resolve_simple_install_release_plans -> direct_linux_release_plan
(or direct_upstream_release_plan on Windows). Those planners only
handled CUDA + CPU attempts, so ROCm-only hosts (e.g. gfx1151 Strix
Halo) had no compatible prebuilt asset and silently fell through to
source build, even though resolve_lemonade_rocm_choice already knew
how to fetch a per-GPU lemonade-sdk binary.

Add a lemonade ROCm/HIP attempt to both simple-policy planners for
ROCm-only hosts, and add regression tests that drive the dispatchers
end-to-end so this can't be skipped silently again.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Document that lemonade ROCm prebuilts work on any glibc Linux

The lemonade-sdk asset filename uses "ubuntu" as a label, but the binary
is a manylinux-style glibc build with no Ubuntu-specific dependencies.
It runs on Arch, Fedora, openSUSE, Debian, etc. as long as the host
glibc is recent enough.

No behavior change -- the dispatch already runs for any Linux ROCm
host. This commit only clarifies the comment, docstring, and log
message so users on non-Ubuntu distros (e.g. Strix Halo on Arch) don't
mistake the asset name for distro gating.

* Pattern matching fix for libggml-cpu*.so*

* fix(lemonade): pass resolved tag to lemonade resolver; add upstream HIP fallback; stub API in tests

- direct_linux_release_plan: pass bundle.upstream_tag (not requested_tag)
  to resolve_lemonade_rocm_choice so a "latest" request doesn't mix a
  newer lemonade binary with an older planned unsloth release (Codex P2)

- direct_upstream_release_plan: same fix on the Windows path (release_tag
  instead of requested_tag); also add the upstream HIP asset
  (llama-<tag>-bin-win-hip-radeon-x64.zip) as a fallback between lemonade
  and CPU so unsupported GPUs or transient lemonade failures don't silently
  downgrade to CPU when an upstream ROCm prebuilt exists (Codex P2)

- test file: stub fetch_json with a synthetic lemonade release payload so
  the suite is hermetic and not subject to GitHub API rate limits (Codex P1);
  add test_simple_policy_windows_hip_falls_back_to_upstream_when_lemonade_unavailable
  to cover the new HIP fallback path

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* fix(lemonade): revert bad tag fix; keep upstream HIP fallback + hermetic tests

The previous commit wrongly passed bundle.upstream_tag / release_tag to
resolve_lemonade_rocm_choice. Lemonade uses its own versioning (b1262,
b1264, …) completely independent of unslothai's tags (b9186, …), so
passing a resolved unslothai tag caused a 404 and silently skipped the
lemonade binary entirely. Revert both call sites to requested_tag.

Keep the two valid fixes from the prior commit:
- Upstream HIP fallback (llama-<tag>-bin-win-hip-radeon-x64.zip) between
  lemonade and CPU in direct_upstream_release_plan, so unsupported GPUs
  or transient lemonade failures don't silently downgrade to CPU (Codex P2)
- Stub fetch_json in tests so the suite is hermetic (Codex P1)

* fix(studio/rocm): respect HIP_VISIBLE_DEVICES when picking lemonade gfx target

The rocminfo / hipinfo regex took the first gfx match in the agent listing.
On mixed APU + dGPU hosts (e.g. Strix Halo gfx1151 + discrete RX 7900 gfx1100)
this picked whichever GPU appeared first in the tool's stdout, not the one
HIP actually runs on. The downloaded lemonade asset could then be a binary
for a different arch than the active device.

Extracted a module-level _pick_rocm_gfx_target() helper that:
- collects every gfx token in order via re.findall (skips gfx000 / generic ISAs)
- if HIP_VISIBLE_DEVICES or ROCR_VISIBLE_DEVICES is set, parses the first
  comma-separated entry as an integer index into that list
- falls back to the first GPU for non-integer (UUID-style) or out-of-range
  values, matching the previous default behaviour

Both Linux (rocminfo) and Windows (hipinfo) branches use the helper.
Existing 18 lemonade tests pass; no behavioural change for single-GPU hosts.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* fix(studio/rocm): dedup rocminfo gfx tokens and honor disabled visibility

Follow-up to 8793aef0. rocminfo / hipinfo emit each gfx target multiple
times per GPU (Name, ISA triple, marketing name), so the prior re.findall
indexing returned the wrong device when HIP_VISIBLE_DEVICES picked GPU 1
on a mixed-arch host -- the helper picked the second occurrence of GPU 0
instead. Collapse to unique tokens (insertion-ordered) before indexing.

Also handle HIP_VISIBLE_DEVICES / ROCR_VISIBLE_DEVICES values of '' and
'-1' as "no AMD visible" (matches the rest of Studio's visibility code),
returning None so the planner does not pick a Lemonade asset for a
hidden GPU.

* fix(studio/rocm): memoise lemonade release lookup + HIP_PATH hipinfo fallback

Robustness pass on top of 25d4ab63:

1. resolve_lemonade_rocm_choice() is called twice per install (planner +
   resolve_upstream_asset_choice), so every install previously hit
   api.github.com twice with identical args -- doubling the 403/rate-limit
   failure surface on busy CI runners. Extract the fetch into a
   functools.lru_cache(maxsize=8) helper keyed on (api_url, llama_tag).
   The cached helper also owns the error-path logging the resolver was
   doing inline. Tests that need to vary fetch_json output across
   invocations should call _fetch_lemonade_release_cached.cache_clear().

2. Windows detect_host probe for hipinfo / amd-smi only used
   shutil.which(), so HIP SDK installs that set HIP_PATH but do not put
   %HIP_PATH%\bin on system PATH classified the host as non-ROCm. The
   PowerShell installer and studio/install_python_stack.py already
   resolve HIP_PATH\bin\hipinfo.exe as a fallback; mirror that here so
   the install planner agrees with the rest of Studio on what counts as
   a ROCm host.

Tests: 18 passed (shipped); 52 extra sim cases pass (added 2 for the
lru_cache deduplication path).

* fix(studio/rocm): lemonade URL trust pinning, runtime overlay covers HIP libs, opt-out env

Robustness pass driven by 5 parallel reviewers of head c08b15e6:

1. URL trust pinning. AssetChoice.url comes from the GitHub API response's
   browser_download_url field. Lemonade attempts are not in the approved-hash
   manifest, so a compromised API response could redirect the download to an
   attacker-chosen host without the integrity gate catching it. New
   _is_trusted_github_release_url() validates https + github.com/<expected_repo>
   release path OR objects.githubusercontent.com (GitHub's CDN). Resolver
   refuses to download otherwise.

2. UNSLOTH_DISABLE_LEMONADE_ROCM opt-out. Users who prefer the upstream HIP
   build path can set this env var to skip lemonade outright (e.g. for
   air-gapped installs or stricter trust requirements). The install log
   already prints a NOTE explaining that lemonade lacks approved-hash
   coverage so users know the trust model.

3. linux-rocm runtime overlay patterns extended to cover lemonade's bundled
   HIP/ROCm runtime libs (libamdhip64.so*, libhsa-runtime64.so*, libhipblas*,
   librocblas*, librocsolver*, librocsparse*, librocrand*, libMIOpen*,
   libmagma*). The upstream tarball does not ship these (links against
   system /opt/rocm), so the new glob entries are no-op for upstream and
   load-bearing for lemonade. Without this, install_from_archives would
   drop the bundled runtime libs from the lemonade ZIP and llama-server's
   RPATH would fail to load amdhip64 at first inference.

4. _lemonade_release_api_for now URL-encodes llama_tag with quote(safe="").
   Defence in depth: a tag containing /, ?, #, or whitespace cannot reshape
   the request URL. Tags come from internal resolution today, but this
   removes the risk if a future caller passes user-controlled input.

5. Empty browser_download_url skipped explicitly in the resolver. The
   release_asset_map helper defaults missing URLs to "". Previously this
   would have been passed to download_file("") which raises a less obvious
   error than the new clean log + return None.

6. Docstring on _lemonade_release_api_for clarified: lemonade tags match
   ggml-org/llama.cpp tags 1:1, NOT unslothai/llama.cpp fork tags. The
   earlier P1 review report misread this and re-asked for the tag-drift
   fix that the author intentionally reverted in f256cea950.

7. Autouse pytest fixture in test_lemonade_llamacpp_rocm_bins_mock.py
   clears _fetch_lemonade_release_cached between tests. Today's tests all
   mock the same payload so no pollution surfaces, but the lru_cache
   becomes a footgun the moment any future test parametrises return values.

Tests: 28 passed (was 18, added 10 covering URL pinning, opt-out env,
pinned-tag helper, URL encoding, empty URL, runtime patterns).

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* fix(studio/rocm): complete lemonade runtime overlay + honor CUDA_VISIBLE_DEVICES

runtime_patterns_for_choice("linux-rocm") was missing libamd_comgr.so*,
librocm_kpack.so*, and librocm_sysdeps_*.so*, which are direct NEEDED
entries of libamdhip64.so.7 in every lemonade bundle. install_from_archives
did not copy them, so the preflight ldd walk failed on llama-server and every
lemonade attempt fell back to source build. Confirmed on gfx1151 b1272 by
h34v3nzc0dex; manually staging the full bundle with the three missing
patterns restored the install and preserved bench parity.

Also extend _pick_rocm_gfx_target to check CUDA_VISIBLE_DEVICES after
HIP_VISIBLE_DEVICES and ROCR_VISIBLE_DEVICES: AMD's HIP runtime honours
all three with identical semantics, so mixed-arch hosts where users set
only CUDA_VISIBLE_DEVICES were still picking the first gfx token instead
of the user-selected device.

Tests: 30 passed (was 28); added 2 for CUDA_VISIBLE_DEVICES (multi-GPU
pick + -1 opt-out) and extended the runtime-patterns test to assert the
three newly added lib globs are present.

* fix: tighten CDN trust check and fix multi-GPU arch selection

- _is_trusted_github_release_url: require /github-production-release-asset-
  path prefix so only real GitHub release CDN URLs are accepted
- _pick_rocm_gfx_target: parse rocminfo Agent N section boundaries to build
  a per-physical-GPU arch list; same arch across multiple GPUs no longer
  collapses to a single token, so HIP_VISIBLE_DEVICES indexing works correctly
- tests: update CDN test to use realistic path prefix, add rejection test for
  arbitrary CDN path, add regression test for same-arch multi-GPU case

* fix: use broad lib*.so* glob for linux-rocm runtime overlay

Replace the explicit lib allowlist in runtime_patterns_for_choice with
lib*.so* for the linux-rocm path.

The lemonade ROCm ZIPs carry a full HIP/ROCm runtime including transitive
deps like libLLVM.so.23.0git and libclang-cpp.so.23.0git (pulled in by
libamd_comgr.so.3). These names change across ROCm releases and were not
in the allowlist, so preflight would see them as unresolved NEEDED entries
and fall back to a source build. The broad glob catches everything in the
bundle now and in future releases without needing to enumerate each library.

* fix: show lemonade binary tag in install summary log line

Store binary_repo and binary_release_tag in UNSLOTH_PREBUILT_INFO.json
so the setup.sh summary can distinguish the source tree (unslothai/llama.cpp)
from the actual binary origin (lemonade-sdk/llamacpp-rocm).

Before: 'installed release: unslothai/llama.cpp@b9334'
After:  'installed release: unslothai/llama.cpp@b9334 + lemonade@b1280'

Upstream installs are unchanged (binary_repo == published_repo).

* fix(merge-compat): align Windows ROCm guard and helper name with strix branch

- elif host.has_rocm instead of if...not to match fix/rocm-strix-halo-unified-memory
- _resolve_exe instead of _resolve_amd_exe with identical body/docstring

Eliminates the two conflict hunks that would otherwise block a clean bot merge
of feature/lemonade-rocm-prebuilts on top of fix/rocm-strix-halo-unified-memory.

* fix: three PR review corrections for lemonade ROCm prebuilt integration

- _lemonade_release_api_for: fix docstring claiming lemonade tags match
  ggml-org 1:1 -- lemonade may be several builds behind ggml-org (noted
  by oobabooga, confirmed: lemonade b1281 vs ggml-org b9370)
- direct_linux_release_plan: move cpu_choice into else-branch so ROCm-only
  hosts never get a CPU fallback in the attempts list -- a failed lemonade
  binary now raises PrebuiltFallback and triggers the HIP source build
  instead of silently installing a CPU-only binary
- apply_approved_hashes: pass lemonade attempts through without requiring
  a manifest entry; lemonade is explicitly documented as relying on
  functional validation only, so rejecting it here caused PrebuiltFallback
  on the non-simple-policy path before the upstream ROCm/HIP fallback
  could be considered

* fix: copy hipblaslt/rocblas library subdirs from lemonade ROCm archives

copy_globs matches filenames only and copies flat, so it cannot
preserve the hipblaslt/library/<gfx>/ and rocblas/library/<gfx>/
Tensile kernel catalog trees that lemonade ROCm zips ship alongside
the .so files. Add runtime_subdirs_for_choice() and call shutil.copytree
for each named subdir after the copy_globs pass in install_from_archives.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Daniel Han <danielhanchen@gmail.com>
Co-authored-by: Jaeic Lee <jaeiclee@users.noreply.github.com>
2026-05-29 22:46:03 -07:00
Leo Borcherding
b6d5636cc0
fix/strix halo and windows AMD ROCm support (#5301)
* fix(studio): set HIP_VISIBLE_DEVICES in apply_gpu_ids for ROCm training workers

Training workers are spawned via multiprocessing spawn before detect_hardware()
runs, so IS_ROCM is still False. If the user never set HIP_VISIBLE_DEVICES in
their shell, _inherits_rocm_visibility is also False, leaving the worker with
only CUDA_VISIBLE_DEVICES set. On ROCm hosts the HIP runtime honors
HIP_VISIBLE_DEVICES over CUDA_VISIBLE_DEVICES, so the worker saw the full
device list and torch raised "no usable HIP accelerator" on some setups.

Fall back to probing torch.version.hip (a build-time attribute, safe to read
before GPU init) to detect ROCm when neither IS_ROCM nor inherited env vars
are available. Mirrors the existing fix in llama_cpp.py for llama-server
subprocess GPU pinning.

Fixes https://github.com/unslothai/unsloth/issues/5180

* test: tighten apply_gpu_ids ROCm fallback assertions

Replace loose OR chain with exact string matches, split into three
focused tests, and add a guard check for the try/except wrapper.

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* fix: detect ROCm unified memory (Strix Halo / AMD iGPU) via torch fallback

amd-smi on iGPUs with shared/unified memory (e.g. Radeon 8060S on Strix
Halo) reports only the dedicated VRAM slice (~512 MB) in its metric output,
so get_visible_gpu_utilization() was returning usable_gb ≈ 0.35 GB instead
of the full GTT pool (~128 GB).  torch.cuda.mem_get_info() already surfaces
the correct unified-pool size.

Add _reconcile_rocm_unified_memory(): after amd-smi returns a valid result
on a ROCm device, cross-check each device's vram_total_gb against
torch.cuda.mem_get_info().  When torch reports a larger total, replace the
amd-smi VRAM fields in-place.  No-op for discrete AMD GPUs where the two
sources agree.

Fixes: "Falling back to all visible GPUs -- model may not fit" on AMD iGPU
machines even when 100+ GB of unified memory is available.

* Apply unified-memory reconciliation in get_gpu_utilization too

The visible-GPU path was already corrected for AMD iGPUs with unified memory
(Strix Halo / Radeon 8060S), but get_gpu_utilization was still returning the
raw 512 MB amd-smi VRAM slice. Studio's /api/train/hardware endpoint and the
live GPU monitor read from this primary path, so users continued seeing the
wrong total even after auto_select_gpu_ids picked the right device.

Refactor to share the per-device correction:
  * _apply_unified_memory_correction(metrics, torch_info) -- the actual
    replacement logic, in-place on a single metrics dict.
  * _reconcile_rocm_unified_memory(...)                   -- multi-device,
    iterates utilization["devices"] (visible-GPU path).
  * _reconcile_primary_rocm_unified_memory(...)           -- single flat
    metrics dict (primary-GPU path), uses parent_visible_spec to pick the
    primary index, falls back to ordinal 0 when no visibility env is set.

get_gpu_utilization now calls the primary reconciler under IS_ROCM, so both
endpoints surface the real unified-memory pool on iGPUs while leaving
discrete AMD GPUs untouched (torch_total <= smi_total -> no replace).

* Use 'is not None' and log debug on torch.version.hip probe failures

Two small follow-ups to the apply_gpu_ids ROCm fallback:

1. Match detect_hardware()'s 'getattr(torch.version, "hip", None) is not None'
   form so the entire codebase has one canonical 'this torch was built with
   HIP' check. On every shipping torch wheel hip is either None or a non-empty
   version string, so the new form agrees with the old bool() form on every
   real install.

2. Log the probe failure at debug level instead of swallowing it silently.
   The broad 'except Exception' is intentional (we never want apply_gpu_ids
   to crash a worker over a probe), but the silent pass made it impossible
   to tell whether the fallback was firing or being skipped.

* fix(studio): honour HIP_VISIBLE_DEVICES in _get_parent_visible_gpu_spec before IS_ROCM is set

When a user has HIP_VISIBLE_DEVICES set in their shell (e.g. "1" to select
GPU 1) but detect_hardware() has not yet run in the Studio parent process,
IS_ROCM is still False.  _get_parent_visible_gpu_spec() was gated on IS_ROCM
so it fell through to CUDA_VISIBLE_DEVICES (unset), saw all physical GPUs,
and auto-selected index 0.  apply_gpu_ids then overwrote HIP_VISIBLE_DEVICES
with "0", making the intended GPU invisible to ROCm torch in the worker,
which triggered the "no usable HIP accelerator" error (issue #5180).

Apply the same _inherits_rocm_visibility pattern already used in
apply_gpu_ids: check for HIP_VISIBLE_DEVICES / ROCR_VISIBLE_DEVICES in the
environment regardless of IS_ROCM so the correct GPU index is preserved.

* fix(install): harden AMD ROCm GPU detection for multi-GPU and env-filtered setups

The previous rocminfo awk pattern could miss discrete GPUs on machines
where HIP_VISIBLE_DEVICES/ROCR_VISIBLE_DEVICES is used to mask an
integrated GPU — the env vars filter rocminfo output but may not
propagate into the install script subprocess, causing detection to
fail entirely.

Two changes:
- Tighten rocminfo pattern from /gfx[0-9]/ && !/gfx000/ to
  /gfx[1-9][0-9]/ — simpler and correctly excludes the CPU agent
  (gfx000) without a negative lookahead
- Add sysfs KFD topology fallback: reads
  /sys/class/kfd/kfd/topology/nodes/*/gpu_id which is a kernel-level
  view unaffected by HIP_VISIBLE_DEVICES or ROCR_VISIBLE_DEVICES

Fixes detection failure reported in Discord by Chains (gfx1201 + iGPU
machine where env var exclusion of the iGPU caused rocminfo to return
no usable device).

* Fix KFD sysfs awk fallback to read properties file

The fallback added by this PR reads /sys/class/kfd/kfd/topology/nodes/*/gpu_id
files but matches the literal token 'gpu_id' against their content. Those
files contain only a single decimal value (e.g. '0' for CPU agents, '50432'
for GPU agents), so the regex never matches and 'found' stays 0, making the
fallback a no-op on every host. The properties file in the same directory
contains key/value lines like 'gpu_id 50432' which is what the existing awk
pattern expects.

Reproduced with a synthetic sysfs layout: against gpu_id files awk exits 1;
against properties files awk exits 0 when any node reports gpu_id > 0.

* fix(setup.ps1): detect AMD ROCm GPU on Windows, bring to parity with setup.sh

setup.ps1 only checked nvidia-smi and fell straight to "gpu: none" on AMD
machines. setup.sh already probed rocminfo/amd-smi/hipconfig/hipinfo.

Add three-tier detection mirroring install_llama_prebuilt.py's detect_host():
1. hipinfo: gcnArchName in output confirms a real HIP GPU (not just SDK)
2. amd-smi list: "GPU: <digit>" data rows as fallback
3. WMI Win32_VideoController: last resort -- detects AMD GPU even without
   HIP SDK, then guides user to install it rather than silently going CPU

Also corrects the "none" message to mention AMD ROCm alongside NVIDIA so
users with AMD hardware understand the requirement.

Fixes: rohit-style install where Strix Halo (Radeon 8060S) showed
"gpu: none" even with the HIP SDK present.

* fix(install.ps1): detect AMD ROCm GPU on Windows, bring to parity with setup.ps1

install.ps1 had the same nvidia-smi-only GPU detection as setup.ps1 before
the setup.ps1 fix. Applies the same three-tier AMD detection:
1. hipinfo: gcnArchName confirms real HIP GPU
2. amd-smi list: GPU data rows as fallback
3. WMI Win32_VideoController: detects AMD GPU without HIP SDK and guides
   user to install it

Fixes: install.ps1 showing "gpu: none" while setup.ps1 correctly showed
"AMD GPU detected" on the same machine (reported by rohit, RX 7600 XT).

* fix(install.ps1): suppress 'No NVIDIA GPU detected' when AMD GPU is present

* feat: add Windows AMD ROCm PyTorch wheel installation

install_python_stack.py:
- Add _ROCM_WINDOWS_WHEEL_BASE and _ROCM_WINDOWS_RELEASES constants
  pointing to AMD repo.radeon.com (ROCm 7.2 -> torch 2.9.1+rocm7.2.1)
- Extend _ensure_rocm_torch() with a Windows branch: detects ROCm via
  _has_rocm_gpu() / _detect_rocm_version(), requires Python 3.12 (cp312
  is the only ABI AMD publishes for Windows), installs the direct wheel
  URL from repo.radeon.com

install.ps1:
- Capture ROCmVersion during AMD detection via hipconfig --version /
  amd-smi version (needed for wheel URL selection)
- After Get-TorchIndexUrl, add an AMD wheel override block: when HasROCm
  and Python 3.12 detected, set ROCmTorchWheelUrl to AMD wheel URL
- Expand torch install branch to handle ROCmTorchWheelUrl with
  uv pip install --force-reinstall --no-cache-dir

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* fix: also install torchvision and torchaudio from AMD Windows repo

AMD publishes matching torchvision-0.24.1+rocm7.2.1 and
torchaudio-2.9.1+rocm7.2.1 cp312 wheels at the same repo.radeon.com
release folder. Install all three in both install.ps1 and
install_python_stack.py Windows ROCm path.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* feat: add ROCm 7.1.1 Windows wheel mapping

AMD uses a different version string for 7.1.1 wheels:
2.9.0+rocmsdk20251116 (date-tagged) instead of +rocm7.1.1.
Adds the 7.1.1 release folder to both install.ps1 and
install_python_stack.py so users with ROCm 7.1 get ROCm
torch instead of falling back to CPU.

* fix: install rocm_sdk_core and rocm_sdk_libraries_custom alongside torch

The AMD Windows torch wheels declare rocm[libraries]==<ver> as a hard
dependency. Without installing rocm_sdk_core and rocm_sdk_libraries_custom
from the same AMD release folder, uv cannot resolve the dependency and
fails with 'No solution found'. Include all 5 wheels in one install call.

* fix: expand ROCm wheel array to scalars for Invoke-InstallCommand

@array splatting inside a scriptblock only works when the native command
is prefixed with '&'. Invoke-InstallCommand uses '& $Command' to run the
block, so @ROCmAllWheelUrls was not being expanded. Extract to scalar
variables $rw0-$rw4 which are captured correctly by the closure.

* fix: use --no-deps for AMD Windows torch wheel install

uv's resolver looks up rocm[libraries]==0.1.dev0 on PyPI during
dependency resolution before downloading any wheels, and fails because
the package doesn't exist on PyPI. --no-deps skips resolution entirely
and installs all 5 AMD wheels directly. The GPU runtime dependency is
satisfied by the HIP SDK, not a Python package.

* fix: setup.ps1 and install_python_stack.py now install ROCm torch on Windows

setup.ps1 was always setting CuTag='cpu' for non-NVIDIA hosts and installing
cpu-only PyTorch, overwriting the ROCm torch installed by install.ps1.
Adds the same AMD wheel selection logic (ROCm version detection, Python 3.12
check, 5-wheel install with --no-deps) to setup.ps1's torch install block.

install_python_stack.py: remove IS_WINDOWS guard from _ensure_rocm_torch()
call site so the Windows path in _ensure_rocm_torch() is reachable during
'unsloth studio update' as well.

* fix: suppress manual-install warning when ROCm torch already present; fix progress counter

- Gate the 'must be installed manually' warning on torch.version.hip being empty
  so it doesn't fire when our ROCm torch install succeeded
- Update _TOTAL counter to include the 3 ROCm steps on Windows now that
  _ensure_rocm_torch() is called there (fixes 10/9 display)

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* feat: add rocm step display in setup.ps1; fix warning and progress counter

- Add 'rocm' step after 'cuda' in setup.ps1 showing ROCm version or HIP SDK missing
- Move ROCm version detection up to GPU detection block so it's available early
- Suppress 'must be installed manually' warning when torch.version.hip is set
- Fix _TOTAL counter to include ROCm steps on Windows (fixes 10/9 display)

* fix: detect AMD SDK ROCm torch via __version__ when torch.version.hip is unset

AMD's repo.radeon.com wheels (e.g. 2.9.0+rocmsdk20251116) do not set
torch.version.hip, leaving it None. All three probes that relied solely on
torch.version.hip now also check for 'rocm' in torch.__version__.lower():

- hardware.py detect_hardware(): IS_ROCM was never set, causing the studio
  to report 'Hardware detected: CPU' even after AMD wheels were installed
  and HIP DLLs were on PATH.
- install_python_stack.py _ensure_rocm_torch(): skip-if-already-installed
  probe would always reinstall on subsequent runs.
- install_python_stack.py Windows AMD warning: suppression check always
  failed, so the 'must be installed manually' note kept appearing after
  a successful AMD wheel install.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* perf: drop --no-cache-dir from AMD ROCm torch wheel installs

uv caches downloaded wheels by default; passing --no-cache-dir forced a
full redownload of the ~2 GB torch wheel on every install run. CUDA installs
never had this flag -- AMD was the only path affected.

* fix: use install-state flag instead of subprocess probe for AMD Windows warning

Replace the subprocess torch probe in the post-install warning block with a
module-level _rocm_windows_torch_installed flag set by _ensure_rocm_torch().
Subprocess re-import of torch is unnecessary and fragile -- the install
function already knows whether it succeeded.

* fix: hoist global declaration to top of _ensure_rocm_torch

Python requires the global statement to appear before any assignment
to the variable within a function. Moving it to the function top fixes
the SyntaxError on line 354.

* fix: pass AMD torch install status via env var to suppress false warning

setup.ps1 now sets UNSLOTH_ROCM_TORCH_INSTALLED=1 after a successful AMD
wheel install. install_python_stack.py reads this at the top of
_ensure_rocm_torch() to skip both the subprocess probe and the warning --
no re-import of torch needed, and the warning message now correctly says
'could not be auto-installed' rather than 'must be installed manually'.

* fix: register ROCm DLL directory before torch import on Windows

Python 3.8+ ignores PATH for extension DLL loading on Windows; amdhip64.dll
and other HIP runtime DLLs must be registered via os.add_dll_directory().
Without this, torch.cuda.is_available() always returns False on AMD ROCm
Windows even when HIP_PATH is correctly set in system environment variables.

Reads HIP_PATH / ROCM_PATH env vars first, then falls back to scanning
common ROCm install roots (C:\Program Files\AMD\ROCm, F:\ROCm, C:\ROCm).

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* fix: remove hardcoded non-standard ROCm paths from DLL directory scan

Only use HIP_PATH/ROCM_PATH (set by AMD installer) and the standard
C:\Program Files\AMD\ROCm\<version>\bin location. Custom drive paths
like F:\ROCm are user-specific and should not be hardcoded.

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* fix: prevent torchao overrides step from overwriting AMD ROCm torch

torchao==0.14.0 in overrides.txt declares torch as a dependency. Without
--no-deps, uv resolves torch from PyPI and installs 2.11.0+cpu on top of
the AMD ROCm wheels (2.9.0+rocmsdk20251116). This was the root cause of
'Hardware detected: CPU' -- the AMD wheels were installed but then
immediately overwritten by the overrides step.

When _rocm_windows_torch_installed is True, add --no-deps to the overrides
pip_install call so torchao is installed without pulling in CPU torch.

* fix: add rocm_sdk namespace tarball to Windows ROCm wheel installs

torch/_rocm_init.py calls `import rocm_sdk` at startup, which requires
the rocm namespace tarball (rocm-*.tar.gz) in addition to the SDK wheel
packages. This tarball was missing from both install.ps1 and setup.ps1,
causing ModuleNotFoundError on first torch import.

- Add rocm-0.1.dev0.tar.gz to ROCm 7.1.1 install (provides rocm_sdk namespace)
- Add rocm-7.2.1.tar.gz + rocm_sdk_devel to ROCm 7.2.1 install
- Install tarball in a dedicated step before main SDK/torch wheels
- Switch to @array splatting in install.ps1 scriptblock for dynamic wheel count
- Remove --no-cache-dir from Python-side ROCm wheel install (prevents ~2GB redownload)

* feat: enable ROCm 7.2 torch install + warn on gfx1151 with ROCm < 7.2

Chigoma333 (AMD Radeon 8060S / gfx1151, Strix Halo) confirmed that ROCm
7.1 segfaults when tensors are moved to GPU, but ROCm 7.2 + torch
2.11.0+rocm7.2 works fully including training.

Changes:
- Uncomment (7,2): "rocm7.2" in _ROCM_TORCH_INDEX (was blocked by <2.11.0)
- Add _ROCM_TORCH_PKG_SPECS dict with per-tag version bounds:
  rocm7.2 → torch>=2.11.0,<2.12.0; all older tags → <2.11.0
- Add _detect_amd_gfx_codes() helper that parses rocminfo output
- Warn on gfx1151/gfx1150 (Strix Halo) when ROCm < 7.2 is installed,
  pointing users at the known segfault and recommending upgrade
- install.sh get_torch_index_url(): enable rocm7.2 case (previously capped
  to rocm7.1), cap unknown future tags to rocm7.2
- install.sh: override TORCH_CONSTRAINT to >=2.11.0,<2.12.0 when rocm7.2
  index is selected, so pip can actually resolve torch 2.11.0

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* fix: prefer Python 3.12 for AMD ROCm users when 3.13 is also installed

After GPU detection, if ROCm HIP SDK is found and the selected Python
is not 3.12, run a second pass to locate a 3.12 install via py.exe and
PATH (catches uv-managed installs). Switch $DetectedPython to 3.12 so
the venv is created with a compatible interpreter for the cp312-only AMD
Windows torch wheels.

NVIDIA and Intel GPU paths are unaffected -- the re-detection block only
runs when $HasROCm is true.

Fixes: #5301

* fix: also check uv-managed Python 3.12 for AMD ROCm #5301

* fix: hide amd-smi console popups on Windows, guard torch.distributed.is_initialized for ROCm #5301

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* fix: suppress remaining console popups on Windows, patch torch.distributed.is_initialized for ROCm #5301

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* fix: stub all missing torch.distributed attrs for ROCm Windows wheel #5301

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* fix: inject torch.distributed stub when C backend missing in ROCm Windows wheel #5301

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* fix(rocm/windows): pre-stub torch._C._distributed_c10d + raise amd-smi timeout

Two fixes for Windows ROCm regressions reported by electroglyph on #5301:

1. worker.py — torch.distributed stub now fires unconditionally on Windows
   The previous stub only injected sys.modules in the except branch, meaning
   it was silently skipped when `import torch.distributed` happened to succeed
   (the C backend is lazily resolved).  The crash then hit later when
   transformers/trl triggered the lazy load.  Fix: on win32 we pre-populate
   sys.modules['torch._C._distributed_c10d'] AND set the attribute on the
   torch._C extension module *before* attempting the import, covering both
   the early-ImportError and lazy-load failure modes.

2. amd.py — increase amd-smi timeout from 5 s to 30 s on Windows (10 s Linux)
   amd-smi on Windows must cold-init the ROCm runtime on first invocation;
   5 s was consistently too short, producing repeated 'Command timed out'
   warnings in the server log.  30 s gives enough headroom without blocking
   indefinitely on broken installs.

3. install.ps1 — widen Python 3.12 enforcement to ROCmGpuLabel (WMI-only path)
   Users whose HIP SDK is not on PATH were detected via WMI but not switched
   to Python 3.12 before the install started, causing a second pass.  Guard
   now fires on (HasROCm -or ROCmGpuLabel).

* fix(rocm): guard c10d stub, fix TorchIndexFamily for 7.1, clean dead code + comments

- worker.py: wrap c10d stub injection in `if _c10d_key not in sys.modules` so
  Windows NVIDIA users with a real torch.distributed are never affected
- install.ps1: fix Get-TauriTorchIndexFamily receiving hardcoded "rocm7.2"
  even when ROCm 7.1 wheels are installed; now branches on $ROCmVersion
- main.py: remove dead `import ctypes as _ctypes` (ctypes is never called)
- hardware.py, install_python_stack.py, worker.py, install.ps1: shorten
  verbose multi-line comment blocks throughout
- tests: update 4 stale assertions that expected rocm7.2 to be absent/capped

* fix(tests): match windows AMD warning assertion to actual source string

* chore: trim verbose comment blocks across all ROCm-related files

* fix: guard reconcile call against None numeric_ids; add torchvision lower bounds

* fix(install.ps1): recreate venv with Python 3.12 after ROCm switch

Venv was created with 3.13 before GPU detection ran; switching
$DetectedPython to 3.12 had no effect since $VenvPython still
pointed to the 3.13 interpreter inside the already-created venv.

* ux: detect AMD GPU before Python selection to avoid double venv creation

- Early hipinfo + WMI probe runs before Find-CompatiblePython so Python
  3.12 is selected upfront when AMD is detected; venv is now created
  exactly once instead of 3.13 then immediately 3.12.
- Post-venv recreation block replaced with a simple warning for the rare
  case where AMD was missed by the early probe.
- setup.ps1: show venv's actual Python version (e.g. 3.12) instead of
  the system Python found by the pre-activation search (was showing 3.13).

* fix(rocm/win): auto-stub all _distributed_c10d symbols via PEP-562 __getattr__

The bare ModuleType stub caused ImportError when torch._dynamo was imported
(triggered by trainer.py accessing torch._dynamo.config at load time).
torch._dynamo pulls in torch.distributed.fsdp._flat_param which does:
  from torch._C._distributed_c10d import FakeProcessGroup
and potentially other symbols. Adding module __getattr__ auto-creates a
stub class for any missing symbol so all such imports succeed without
enumerating every individual symbol. Applied to both the primary stub
and the fallback stub in the except branch.

* chore: trim c10d stub comment

* fix(rocm/win): auto-stub missing torch.distributed attrs (Store, ProcessGroup, …)

* fix(rocm/win): pre-stub fsdp submodules in sys.modules; fix __getattr__ subpackage clash

* feat(rocm/win): arch-aware wheel selector always picks newest ROCm release

Replace HIP-SDK-version-gated wheel selection with GPU arch-based logic.
Select-ROCmWheelRelease (PS) and _select_windows_rocm_release (Python) map
gcnArchName → minimum ROCm version, then pick the newest available release
that satisfies it (currently always rocm-rel-7.2.1 for any supported GPU).
Wheels bundle their own ROCm runtime so the installed HIP SDK 7.1 does not
prevent using 7.2.1 wheels on gfx1200 (RX 9060 XT) and similar RDNA 4 GPUs.

Also installs the bitsandbytes Windows ROCm continuous-release wheel and sets
BNB_ROCM_VERSION=72 in worker.py before ML imports so bnb loads the
libbitsandbytes_rocm72.dll that ships in that wheel.

* fix(rocm/win): stub class metaclass for ProcessGroup.BackendType; amd-smi circuit breaker

torchao.float8.inference accesses ProcessGroup.BackendType as a class-level
attribute.  Plain type() stubs have no __getattr__ on the metaclass so this
raises AttributeError.  Introduce _StubClassMeta whose __getattr__ returns
child stub classes, fixing the torchao import chain.

Add an amd-smi circuit breaker in amd.py: after 3 consecutive failures the
module stops spawning the process, eliminating the repeated Windows UAC /
DiskPart elevation prompts caused by polling a non-functional amd-smi.

Also guard BNB_ROCM_VERSION=72 behind a DLL existence check so bitsandbytes
fails with its own detection message rather than a harder "DLL not found" when
the Windows ROCm bnb wheel is not yet installed.

* fix: stub __members__ so torchao float8 enum check doesn't crash on ROCm Windows

torchao.float8.inference accesses ProcessGroup.BackendType.__members__
expecting a Python Enum registry dict. _StubClassMeta.__getattr__ was
blocking all dunder attributes, causing AttributeError. Return {} for
__members__ specifically so the isinstance/iteration checks pass cleanly.

* fix: stub distributed tensor/functional_collectives to prevent missing C++ op crash on ROCm Windows

torch._dynamo.trace_rules eagerly loads torch.distributed.tensor at import
time, which pulls in _functional_collectives.py. That file registers Meta
kernels for _c10d_functional C++ ops, but those ops are only registered
by torch._C._distributed_c10d — a C extension absent from ROCm Windows
wheels. Pre-stubbing the affected modules in sys.modules prevents the real
import chain from running and avoids the "operator does not exist" crash.

* fix: give mod stubs __path__ and pre-stub _tensor to fix 'not a package' import error

_make_mod_stub now sets __path__=[] so Python treats stub modules as
packages. Without it, any import of a submodule raises "is not a package".
Also pre-stub torch.distributed._tensor and its submodules so that
_tensor/__init__.py (which re-exports from torch.distributed.tensor) never
runs and torchao's `from torch.distributed._tensor import DTensor` gets a
harmless stub instead of crashing.

* fix: stub torch.ops._c10d_functional namespace with hashable op sentinels

torchao.dtypes.nf4tensor uses _c10d_functional ops as dict keys at import
time (all_gather_into_tensor.default, wait_tensor.default) and
torch.ops.c10d.scatter_.default. None of these ops are registered on ROCm
Windows because torch._C._distributed_c10d (the C extension) doesn't ship.
Replace the whole _c10d_functional namespace with a custom stub whose ops
return hashable .default objects, so dict-key construction doesn't crash.
Also inject a scatter_ stub into torch.ops.c10d if it's missing.

* fix: stub entire torchao package on ROCm Windows instead of individual ops

torchao is not supported on ROCm Windows and its import chain transitively
requires torch._C._distributed_c10d (absent from the ROCm Windows wheel).
Rather than stub each missing op one by one, stub the whole torchao package
upfront. Unsloth uses bitsandbytes for quantization, not torchao, so this
has no functional impact. transformers gracefully handles an importable-but-
empty torchao by disabling TorchAoHfQuantizer.

* fix: set __spec__ on mod stubs so importlib.util.find_spec doesn't raise

Manually-injected sys.modules entries have __spec__=None by default.
importlib.util.find_spec() raises ValueError when it finds a module in
sys.modules with __spec__=None (transformers.utils.import_utils hits this
when checking if torchao is available). Give every stub a minimal
ModuleSpec(name, loader=None, is_package=True) to satisfy find_spec.

* fix: add meta path finder to auto-stub subpackages of stub modules

`import torchao.prototype` goes through the import machinery, not
__getattr__, so an empty __path__ means ModuleNotFoundError. Rather than
list every submodule explicitly, register a MetaPathFinder that intercepts
any import whose parent is one of our stubs (detected by loader=None in the
parent's ModuleSpec). Real installed packages always have a SourceFileLoader
so they are never intercepted. Also register child stubs in sys.modules
from __getattr__ as a belt-and-suspenders measure.

* fix: use _unsloth_stub sentinel instead of loader=None for stub detection

The import machinery overwrites module.__spec__ with the spec returned by
find_spec (which has loader=_StubSubpackageLoader, not None), so the
loader=None check broke for second-level subpackages. Switch to a custom
_unsloth_stub object identity sentinel set directly on each stub module --
it survives __spec__ being replaced and correctly identifies stubs at any
depth (torchao.prototype.safetensors, etc.).

* refactor(rocm/win): switch to repo.amd.com arch-aware index, remove stubs

AMD recommends repo.amd.com/rocm/whl/{arch}/ as the Windows ROCm wheel
source. These wheels bundle their own ROCm runtime, support all Python
versions (not just cp312), and include the full torch._C extension set
(including _distributed_c10d) that the old repo.radeon.com wheel omitted.

Changes:
- install.ps1: remove Select-ROCmWheelRelease + hardcoded cp312 wheel
  URLs; remove Python 3.12 forced-preference logic; install via
  --index-url repo.amd.com/rocm/whl/{arch-family}/
- studio/setup.ps1: same -- remove Select-ROCmWheelRelease, switch to
  repo.amd.com arch-aware index URL
- studio/install_python_stack.py: replace _ROCM_WINDOWS_RELEASES /
  _select_windows_rocm_release with _windows_rocm_index_url() using the
  _GFX_TO_AMD_INDEX_ARCH map; drop Python 3.12 restriction
- studio/backend/core/training/worker.py: remove all stub machinery
  (_make_mod_stub, _StubSubpackageFinder, _StubSubpackageLoader,
  _StubClassMeta, torchao/fsdp/dtensor stubs, _c10d_functional ops
  stubs, BNB DLL detection) -- no longer needed with new wheel source

* fix(rocm/win): restore _distributed_c10d + torchao stubs; fix BNB install

repo.amd.com torch wheels also omit torch._C._distributed_c10d on Windows
(RCCL is not shipped on Windows). torch/distributed/__init__.py imports
from it unconditionally at module level, so the stub must land in
sys.modules before any torch.distributed import.

torchao (pulled in by transformers.quantizers) walks
torchao.float8.distributed_utils -> torch.distributed._functional_collectives
-> distributed_c10d at import time. Stubbing torchao up-front short-circuits
that chain.

worker.py:
- Restore _make_mod_stub / _StubSubpackageFinder / _StubSubpackageLoader
- Restore _StubClassMeta for ProcessGroup.BackendType attribute access
- Restore _distributed_c10d stub with __getattr__ (Windows only)
- Restore torchao stubs (5 modules, Windows only)

install_python_stack.py:
- BNB AMD wheel install was inside the early-return branch that fires when
  torch is already a ROCm build (installed by install.ps1). Move BNB install
  outside that branch so it always runs on Windows ROCm — the PyPI
  bitsandbytes has only CUDA DLLs and fails to load on ROCm.

* worker: remove _distributed_c10d stub; stub only torchao

The installed torch/distributed/__init__.py from repo.amd.com
(torch==2.10.0+rocm7.12.0) is now properly guarded with
`if is_available():`, so `import torch.distributed` alone is safe.

The crash only comes via torchao's import chain:
  torchao.float8.distributed_utils
    → torch.distributed._functional_collectives (unguarded import)
    → torch.distributed.distributed_c10d
    → torch._C._distributed_c10d  ← absent on Windows ROCm

Stubbing torchao short-circuits the chain entirely. No need to stub
_distributed_c10d. Remove _StubClassMeta and the _c10d stub block;
keep only _make_mod_stub + _StubSubpackageFinder + torchao seeds.

* fix: BNB AMD wheel skipped + torch.compile segfault on Windows ROCm

install_python_stack.py: the UNSLOTH_ROCM_TORCH_INSTALLED=1 early-return
path (set by setup.ps1 when it installed torch itself) returned before
ever reaching the AMD BNB prerelease wheel install.  The PyPI
bitsandbytes==0.49.x ships only CUDA DLLs, so loading it on ROCm fails
with "libbitsandbytes_rocm72.dll not found".  Now installs the AMD
Windows BNB wheel before returning on that path too.

worker.py: torch._grouped_mm crashes on gfx1200 (null HIP kernel pointer,
0xC0000005) when torch.compile's JitDecomp system dispatches it during
the first forward pass.  Detect Windows ROCm via torch.version.hip
(already in sys.modules from section 1e) and set TORCHDYNAMO_DISABLE=1
to bypass the broken kernel dispatch.

* fix: BNB AMD wheel install fails uv wheel filename check

The bitsandbytes continuous-release wheel is intentionally mismatched:
filename encodes 1.33.7.preview (= 1.33.7rc0 in PEP 440) but wheel
metadata reports 0.50.0.dev0.  uv rejects this by default.

Introduce _install_bnb_windows_rocm() helper that sets
UV_SKIP_WHEEL_FILENAME_CHECK=1 only for this specific install, then
restores the previous env value.  Both BNB install call sites (the
UNSLOTH_ROCM_TORCH_INSTALLED early-return path and the normal Windows
ROCm path) now use this helper.

* worker: patch _grouped_mm CUDA dispatch on Windows ROCm (gfx1200 null kernel)

TORCHDYNAMO_DISABLE=1 stopped the compiler frontend but not the autograd
JitDecomp system, which also dispatches _grouped_mm and hits the same
null HIP kernel crash (0xC0000005).

Verified that torch.library.Library("aten","IMPL").impl("_grouped_mm", fn,
"CUDA") successfully overrides the broken HIP kernel with a Python mm
fallback on torch==2.10.0+rocm7.12.0.

Schema: _grouped_mm(Tensor self, Tensor mat2, Tensor? offs=None,
                    Tensor? bias=None, ScalarType? out_dtype=None) -> Tensor

The fallback handles both the simple case (offs=None → torch.mm) and the
grouped case (offs provided → split self by offsets, multiply each group
against the corresponding slice of mat2, then cat results).

Keep _WINDOWS_ROCM_GROUPED_MM_LIB alive at function scope to prevent the
C++ dispatch registration from being freed by GC.

* worker: fix torchao stub — return stub classes not modules for isinstance()

peft/tuners/lora/torchao.py does:
  from torchao.dtypes import AffineQuantizedTensor, LinearActivationQuantizedTensor
  isinstance(weight, (AffineQuantizedTensor, LinearActivationQuantizedTensor))

The stub __getattr__ was returning stub modules, which isinstance() rejects
with "arg 2 must be a type, a tuple of types, or a union".

Add _StubTypeMeta metaclass whose __instancecheck__ always returns False,
and _make_stub_type() to create stub classes via it. Change _make_mod_stub
__getattr__ to return stub classes instead of stub modules for leaf
attribute access, so isinstance() gets a valid type and returns False.

_StubSubpackageFinder still handles import-style subpackage creation
(those still need module objects in sys.modules); __getattr__ only fires
for from-import or direct attribute access, which are the isinstance paths.

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* tests: add coverage for Windows ROCm install paths and worker patches

Add conftest.py to fix pre-existing sys.path issue that prevented
test_rocm_support.py from running at all (install_python_stack.py
imports from backend.utils.wheel_utils which needs studio/ on sys.path).

New test classes cover everything added in this session:
- TestWindowsRocmIndexUrl: arch → AMD pip index URL mapping (gfx120X-all,
  gfx1151, gfx1150, gfx110X-all, unknown → None, trailing slash)
- TestDetectWindowsGfxArch: hipinfo output parsing, missing/timeout/bad
  returncode/no-gcnArchName paths
- TestInstallBnbWindowsRocm: UV_SKIP_WHEEL_FILENAME_CHECK set+restored,
  env restored on exception, no-op when URL missing
- TestRocmTorchInstalledEnvVar: UNSLOTH_ROCM_TORCH_INSTALLED=1 skips
  pip_install, calls _install_bnb_windows_rocm, sets flag
- TestWorkerWindowsRocmPatches: _grouped_mm CUDA dispatch override,
  offs/grouped variant handling, GC-prevention sentinel,
  _StubTypeMeta __instancecheck__, _StubSubpackageFinder registration,
  torchao key submodule pre-stubbing, TORCHDYNAMO_DISABLE guard
- TestRocmTorchPkgSpecs: rocm7.2 torch 2.11.x spec, default <2.11 cap,
  3-tuple shape, _GFX_TO_AMD_INDEX_ARCH RDNA4/3.5/3 coverage

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* tests: fix encoding, IS_WINDOWS patching, and wrong assertion

- Add encoding="utf-8" to all read_text() calls (54 occurrences) so
  tests pass on Windows where the default codec is cp1252 and source
  files contain UTF-8 emoji (e.g. ⚠️ in install_python_stack.py)
- Add @patch.object(stack_mod, "IS_WINDOWS", False) to Linux-path
  TestEnsureRocmTorch tests so they reach the Linux code path when run
  on a Windows machine instead of short-circuiting into the Windows branch
- Fix test_grouped_mm_patch_guarded_by_windows_and_hip_check: the source
  uses getattr(_torch_for_rocm, "version", None) not torch.version, so
  check for '"version"' and '"hip"' substrings instead

137 passed, 2 skipped

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* fix: pin BNB_ROCM_VERSION=72 for torch==2.11.0+rocm7.13.0 compatibility

AMD's pip index now ships torch==2.11.0+rocm7.13.0 (ROCm 7.13).
bitsandbytes auto-detects HIP 7.13 from torch.version.hip and looks for
libbitsandbytes_rocm713.dll, which the AMD Windows prerelease wheel does
not ship (it only ships rocm72.dll), causing a load error at training start.

Fix:
- worker.py section 1f: set BNB_ROCM_VERSION=72 (via setdefault) before
  section 2 ML imports, so bitsandbytes always loads rocm72.dll on Windows ROCm
- install_python_stack.py: set BNB_ROCM_VERSION=72 in _install_bnb_windows_rocm()
  for any post-install imports; update comment to document root cause
- tests: 4 new assertions covering the fix (141 passed, 2 skipped)

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* fix: detect BNB ROCm DLL suffix dynamically instead of hardcoding '72'

BNB_ROCM_VERSION was pinned to '72' which works today (AMD wheel ships
rocm72.dll) but would break again if AMD ships a future wheel with a
different DLL suffix (e.g. rocm713.dll).

Add _detect_bnb_rocm_dll_ver() to install_python_stack.py: scans the
installed bitsandbytes package dir for libbitsandbytes_rocm{VER}.dll
using importlib.util.find_spec (no BNB import needed) and returns the
suffix.  '72' remains the fallback when detection fails.

Apply the same detection inline in worker.py section 1f.  Both paths
still respect a pre-set BNB_ROCM_VERSION (caller override wins).

Tests: +8 cases covering detection logic and fallback (147 passed, 2 skipped).

* fix: patch torch.distributed stubs in server process for Windows ROCm

On Windows ROCm, torch.distributed ships without process-group helpers
(is_initialized, is_available, get_rank, get_world_size).  The worker
subprocess already patches these in section 1e, but the main server
process calls _determine_attention_impl_for_gpu_estimate() which calls
unsloth's resolve_attention_implementation() → is_initialized(), causing:

  "Could not resolve attention implementation for '...':
   module 'torch.distributed' has no attribute 'is_initialized'"

Fix: patch the missing attrs onto torch.distributed at the top of
_determine_attention_impl_for_gpu_estimate, matching the same stubs
already applied in worker.py section 1e.  No-ops on Linux/CUDA where
torch.distributed is fully populated.

* fix: gate _grouped_mm dispatch patch on HIP < 7.13

AMD fixed the gfx1200 null HIP kernel in ROCm 7.13 (torch 2.11+).
Users on the new wheel now get the real GPU _grouped_mm kernel for
MoE workloads instead of the Python mm fallback.

Changes:
- worker.py: add _hip_ver_at_least() helper; wrap full _grouped_mm
  patch in `if not _hip_ver_at_least(7, 13):` with else branch that
  logs the skip reason; update section-1f comment to document the fix
- test_rocm_support.py: add 5 tests covering the helper definition,
  the (7, 13) gate expression, the else branch, the skip log message,
  and the AMD-format version string parsing (.split(".")[:2])

Verified: torch==2.11.0+rocm7.13.0 — 3D batch and grouped (offs)
variants both succeed; null crash only present on rocm7.12 and earlier.

* fix: stub is_torchelastic_launched on torch.distributed for Windows ROCm

resolve_attention_implementation calls is_torchelastic_launched() which
does not exist in the incomplete torch.distributed shipped with the
Windows ROCm wheel, causing a warning on every model config load in the
server process. Add it to the stub table alongside the four helpers
already patched in _determine_attention_impl_for_gpu_estimate.

Also adds two tests: one confirming the new stub and one confirming all
five core distributed helpers are covered.

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* fix: explicit warnings on AMD ROCm arch/version fallbacks + Fast-Install arg order

setup.ps1:
- Fix Fast-Install argument order: packages before flags, consistent with
  all other Fast-Install calls in the file
  (was: Fast-Install --force-reinstall --index-url $url torch ...)
  (now: Fast-Install torch torchvision torchaudio --force-reinstall --index-url $url)
- Add explicit [WARN] substep when $HasROCm is true but arch mapping fails:
  - GPU arch detected but not in supported wheel list → names the arch and
    lists supported families so user knows exactly what to report
  - HIP SDK present (amd-smi path) but gcnArchName unreadable → instructs
    user to re-install the HIP SDK; previously fell back silently to CPU

install.sh:
- Add [WARN] to stderr before silent CPU fallback when AMD GPU is confirmed
  (rocminfo/amd-smi) but ROCm version cannot be read from any source
  (amd-smi, /opt/rocm/.info/version, hipconfig, dpkg, rpm)
- Add [WARN] to stderr when ROCm version is too old (< 6.0) with upgrade link

install.ps1 and setup.sh: no changes needed (already handle these paths correctly)

* fix: robust gfx arch detection for Strix Halo / HIP-runtime-only installs

Covers users who have the HIP runtime (amd-smi available) but not the
full HIP SDK (no hipinfo), which is common on Strix Halo iGPU systems.
Without this, $ROCmGfxArch stays null and the installer silently falls
back to CPU-only PyTorch despite a working GPU.

Detection waterfall (setup.ps1 + install.ps1):
  1. hipinfo gcnArchName          -- full HIP SDK (existing, unchanged)
  2. amd-smi list gfx pattern     -- newer amd-smi versions embed arch
  3. amd-smi static --asic        -- ROCm 6+ ASIC details with GFX target
  4. UNSLOTH_ROCM_GFX_ARCH env    -- manual override escape hatch
  5. GPU name → arch table        -- best-effort from marketing name:
       890M / Strix Halo  → gfx1151 (RDNA 3.5 iGPU, Strix Halo)
       880M / Strix Point → gfx1150 (RDNA 3.5 iGPU, Strix Point)
       780M / Phoenix     → gfx1103 (RDNA 3 iGPU)
       RX 7900/7800/7700  → gfx1100 (RDNA 3 desktop)
       RX 9070 XT / 9080  → gfx1201 (RDNA 4)
       RX 9070 / 9060 XT  → gfx1200 (RDNA 4)

When arch is inferred from name, a Cyan substep tells the user to set
UNSLOTH_ROCM_GFX_ARCH to skip inference on future installs.
WMI block intentionally does not set $HasROCm (no runtime confirmation).

Tests: 11 new tests in TestStrixHaloGfxArchDetection covering all five
detection levels, WMI safety, and gfx regex in both ps1 files.

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* fix: resolve hipinfo/hipconfig via HIP_PATH/ROCM_PATH when not on PATH

AMD HIP SDK sets HIP_PATH on Windows but does not always add the bin
directory to PATH.  Get-Command hipinfo therefore silently fails and
detection falls through to WMI, which cannot provide a gfx arch, leaving
the user with a CPU-only PyTorch install and no warning.

Changes:
- setup.ps1 / install.ps1: before falling through to amd-smi, attempt to
  locate hipinfo.exe and hipconfig.exe under $env:HIP_PATH\bin (then
  $env:ROCM_PATH\bin) when Get-Command returns nothing
- Emit a [WARN] with the resolved path and a one-liner to permanently fix
  PATH via SetEnvironmentVariable
- Emit a [WARN] when HIP_PATH/ROCM_PATH is set but the exe is still not
  found (incomplete SDK install)
- Emit a [WARN] with the first hipinfo output line when hipinfo runs but
  returns a non-zero exit code (e.g. "no ROCm-capable device detected")
- 18 new tests in TestHipSdkEnvPathResolution; total 183 passed, 2 skipped

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* feat: print HIP SDK path and full hipconfig version in terminal on AMD detection

Both install.ps1 and setup.ps1 now emit substeps under the gpu step when
AMD ROCm is detected:

  gpu  AMD ROCm (gfx1200)
       HIP SDK: C:\Program Files\AMD\ROCm\7.1
       hipconfig: 7.1.51803-d3a86bd04

Previously only the gpu label (e.g. "AMD ROCm (gfx1200)") was shown with
no indication of where the SDK was found or which exact build was active.
The full hipconfig build string (e.g. 7.1.51803-d3a86bd04 instead of just
7.1) is now stored in ROCmVersionFull and also used in setup.ps1's
'rocm' step label.

9 new tests in TestHipSdkDetectedSubstep; total 192 passed, 2 skipped

* fix: Strix rocm7.1 segfault bypass + Ubuntu 24.04 HIP gcc-install-dir

Issue 1 (install.sh): gfx1151/gfx1150 + ROCm 7.1 causes a segfault in
torch._grouped_mm (moe_utils.py:167). The Radeon repo now ships cp313
wheels for rocm-rel-7.1, so _amd_gpu_radeon=true silently lands on the
broken combo. When Strix Halo/Point is detected and TORCH_INDEX_URL is
rocm7.1, override to rocm7.2 PyTorch index, update TORCH_CONSTRAINT, and
set _amd_gpu_radeon=false to bypass the Radeon repo entirely. Emits a
clear [WARN] explaining the segfault and linking to the ROCm upgrade docs.

Issue 2 (setup.sh): ROCm 7.x ships clang-20 which on Ubuntu 24.04+ picks
/usr/lib/gcc/x86_64-linux-gnu/14/ (runtime dir, no C++ headers), causing
'cstdlib file not found' and a failed llama.cpp HIP build. Iterate gcc
versions 14→11 to find the first install dir that has both runtime and
/usr/include/c++/<ver> headers, then pass --gcc-install-dir to clang via
CMAKE_HIP_FLAGS. Fix confirmed by h34v3nzc0dex (llama.cpp 417/417 clean).

11 new tests across TestStrixRocm71Override and TestSetupShGccInstallDir;
total 203 passed, 2 skipped

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* fix: BNB_ROCM_VERSION in server process + torch._C._distributed_c10d stubs

Two errors visible in training logs on Windows ROCm:

1. Server process bitsandbytes crash:
   "Configured ROCm binary not found at libbitsandbytes_rocm713.dll"
   The installed BNB wheel ships rocm72.dll (not rocm713.dll). The
   training worker already sets BNB_ROCM_VERSION=72 via DLL detection
   but the server process (main.py) imported bitsandbytes before that
   ran. Fix: add the same DLL-scan + BNB_ROCM_VERSION assignment to
   main.py inside the existing win32 guard, before any downstream
   import can pull in bitsandbytes.

2. torch.distributed import failure:
   "No module named 'torch._C._distributed_c10d'; torch._C is not a package"
   torch._C is a C extension on Windows ROCm — Python cannot do
   submodule imports from it, so torch.distributed fails to import
   before our attribute stubs could ever run. Fix: inject empty
   ModuleType stubs for _distributed_c10d, _distributed_autograd and
   _distributed_rpc into sys.modules inside the win32 guard in
   hardware.py BEFORE importing torch.distributed, so the import
   succeeds and our attribute stubs take effect.

9 new tests in TestServerStartupRocmFixes; total 212 passed, 2 skipped

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* fix(win32): populate distributed c10d stub with dummy symbols

torch.distributed tries to `from torch._C._distributed_c10d import
FakeProcessGroup` (and ProcessGroup, Work, Store, etc.).  The previous
empty ModuleType stub caused an AttributeError on those names.

Populate every stub with a _Dummy class for each known symbol so the
import chain completes silently on Windows ROCm where torch._C is a
compiled extension and its _distributed_c10d submodule doesn't exist.

Adds four new tests in TestServerStartupRocmFixes covering FakeProcessGroup,
ProcessGroup, setattr population, and all three _distributed_* siblings.

* fix(win32): distinguish HIP SDK installed vs GPU not ROCm-accessible

Previously, when hipinfo was found but exited non-zero (e.g. "no
ROCm-capable device detected"), both install.ps1 and setup.ps1 fell
through to the WMI-label-only branch and printed "AMD GPU detected --
HIP SDK not found" -- factually wrong since the SDK binary is present.

Add $HipSdkInstalled flag (set true when hipinfo binary is found,
regardless of exit code). When HipSdkInstalled && !HasROCm:
- Show "AMD GPU detected -- not ROCm-accessible (HIP <ver>)" instead
- Explain this is a driver issue, not an SDK issue, with a link
- Still run hipconfig version capture so version shows in output
- CPU-only hint now says "GPU not ROCm-accessible" not "require HIP SDK"

Also applies to setup.ps1 (same detection block, same branches).

Adds TestHipSdkInstalledButDeviceInaccessible (11 tests).

* fix(win32): scope ROCm workarounds to AMD hosts only

Three Codex-flagged issues where Windows ROCm workarounds incorrectly
applied to Windows CUDA (NVIDIA) machines:

main.py (P1): BNB_ROCM_VERSION was set unconditionally on all win32
hosts. On NVIDIA, bitsandbytes sees BNB_ROCM_VERSION and looks for a
ROCm DLL that doesn't exist, breaking bitsandbytes initialisation.
Fix: gate the block on HIP_PATH/ROCM_PATH being present (ROCm hosts only).

worker.py (P2): torchao stubs were seeded for all win32 runs, shadowing
real torchao on Windows CUDA and silently disabling torchao quantization
for NVIDIA users. Fix: gate on HIP_PATH/ROCM_PATH (win32 ROCm only).

install_python_stack.py (P1): _detect_windows_gfx_arch() only checked
shutil.which("hipinfo"), skipping the HIP_PATH/ROCM_PATH fallback that
the PowerShell installers use. On installs where the HIP SDK bin dir is
not on PATH, _ensure_rocm_torch() returned early without installing
ROCm wheels or bitsandbytes. Fix: mirror the env-var fallback.

* fix(linux): route Strix + ROCm 7.1 to AMD arch-specific index

Instead of falling back to pytorch.org/rocm7.2, the Strix override now
routes to repo.amd.com/rocm/whl/gfx1151/ (or gfx1150/) which serves
torch 2.11.0+rocm7.13.0 -- AMD's build containing the actual _grouped_mm
kernel fix, verified on real gfx1151 hardware by h34v3nzc0dex.

This exercises the real GPU kernel path rather than the rocm7.2 workaround.
UNSLOTH_AMD_ROCM_MIRROR can override the base URL for air-gapped installs.

Also teaches _tauri_torch_index_family to recognise AMD arch-specific URLs
(repo.amd.com/rocm/whl/gfx*) and return the rocm7.13 family label so
_tauri_gpu_branch correctly classifies these installs as rocm.

Suggested by h34v3nzc0dex based on hardware-verified probe results.

* fix(studio/rocm): gate ROCm-only side-effects on active torch runtime

Address five edge cases flagged during PR review:

1. studio/backend/main.py: BNB_ROCM_VERSION was set whenever HIP_PATH or
   ROCM_PATH was present in the environment. A Windows CUDA user who once
   installed the HIP SDK and reverted to a CUDA torch wheel still has those
   env vars set, so bitsandbytes would try to load libbitsandbytes_rocm72.dll
   against a CUDA torch and crash. Now probe torch.version.hip inside the
   env-var guard (worker.py already does this).

2. studio/backend/main.py: os.add_dll_directory returned handles were
   discarded. Per CPython docs, the directory leaves the DLL search list when
   the handle is garbage collected. Retain handles in module-level
   _ROCM_DLL_HANDLES list so they survive process lifetime.

3. studio/install_python_stack.py: _install_bnb_windows_rocm() returned None
   regardless of pip_install_try outcome, and the caller flipped
   _rocm_windows_torch_installed to True unconditionally. On a failed BNB
   install the post-install "manual install may be required" warning was
   suppressed and the user was misled. Helper now returns bool; caller gates
   on it.

4. studio/install_python_stack.py: _detect_windows_gfx_arch returned the raw
   capture group, so mixed-case hipinfo output ("Gfx1151") missed the
   lowercase keys in _GFX_TO_AMD_INDEX_ARCH and silently fell back to CPU
   torch. Lowercase the token.

5. studio/install_python_stack.py: UNSLOTH_ROCM_TORCH_INSTALLED=1 early-
   return trusted the env var even when the venv was wiped between runs.
   Subprocess-probe torch importability first; fall through to the full
   install path if the probe fails.

Tests: 231 passed, 1 skipped in tests/studio/install/test_rocm_support.py
(adds one new test for case 5 fall-through).

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* fix(studio/rocm): worker.py parity + don't roll back ROCm torch on bnb failure

Addresses findings from a 10x reviewer pass on the prior fix commit:

1. studio/backend/core/training/worker.py (parity with main.py):
   - Gate the torchao stub block on torch.version.hip / 'rocm' in
     torch.__version__ instead of HIP_PATH / ROCM_PATH env-var presence.
     Same root cause as main.py: HIP SDK env vars stick around on CUDA hosts.
   - Add module-level Windows ROCm DLL registration block. Worker subprocesses
     inherit env vars but not the parent's add_dll_directory handles, so the
     first `import torch` in the worker could fail to find amdhip64.dll when
     HIP_PATH\bin is not on PATH. Mirrors main.py setup. Handles retained at
     module scope via _ROCM_DLL_HANDLES.
   - Promote _WINDOWS_ROCM_GROUPED_MM_LIB to module scope with `global` in
     run_training_process so the torch.library.Library registration survives
     past function return / mid-run garbage collection.
   - Harden _torch_has_hip() to also accept 'rocm' in torch.__version__
     (AMD SDK / Radeon wheels may not set torch.version.hip).

2. studio/install_python_stack.py:
   - Don't roll back ROCm torch when bitsandbytes install fails. The prior
     commit gated _rocm_windows_torch_installed on _install_bnb_windows_rocm()
     returning True; if torch installed successfully but bnb failed, the flag
     stayed False and later install steps could overwrite ROCm torch with the
     generic CPU torch wheel. Set the flag after torch install; surface bnb
     failure as a separate warning instead.
   - _detect_windows_gfx_arch now probes in three tiers: UNSLOTH_ROCM_GFX_ARCH
     env-var override (matches the PowerShell installer), then hipinfo (PATH
     or HIP_PATH\bin), then amd-smi (`static --asic`, `list`). Without the
     amd-smi fallback, runtime-only Radeon installs without hipinfo on PATH
     made `studio update` return early and leave the venv on CPU torch.
   - Linux torch-already-rocm probe in _ensure_rocm_torch now matches the
     Windows probe shape: accepts torch.version.hip OR 'rocm' in
     torch.__version__ to cover AMD SDK / Radeon Linux wheels.

3. studio/backend/utils/hardware/hardware.py:
   - apply_gpu_ids() final-fallback torch probe accepts 'rocm' in
     torch.__version__ in addition to torch.version.hip, matching
     detect_hardware(). AMD SDK wheels could otherwise leak through with
     CUDA-only visibility masks on a spawned ROCm worker.

Tests: 231 passed, 1 skipped in tests/studio/install/test_rocm_support.py
(no test changes needed; the probe shape that prints the hip version (or
'rocm' sentinel) preserves the existing non-empty-string contract).

Not addressed in this commit (deferred or out of scope):
- Tag drift / lemonade checksum (PR 5303 surface, not this PR).
- install.sh rocm7.2.1 URL: small fix, separate.
- install.ps1 / setup.ps1 'Radeon 8060S' marketing-name fallback table.
- Strix Halo + ROCm 7.1 routing asymmetry in Python update path.

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* fix(studio/rocm): robustness pass - rocm tag normalisation, Strix routing parity, hardened detection

Robustness pass on top of 76137b2d. Four targeted fixes:

1. install.sh ROCm-tag routing normalisation.
   `rocm7.2.1` would route to https://download.pytorch.org/whl/rocm7.2.1
   which does not exist (PyTorch publishes major.minor URLs only). Same
   for any future patch-level tag. Normalise every rocm{maj.min}* pattern
   to the bare {maj.min} index URL.

2. install.ps1 + studio/setup.ps1 marketing-name fallback.
   The gfx1151 row matched 890M / Strix Halo / HX 37x / HX 38x / AI 9 HX
   but not the actual retail name 'AMD Radeon 8060S Graphics' shipped by
   OEMs (Ryzen AI MAX+ 395). Add '8060S' to the regex.

3. install_python_stack.py Strix + ROCm 7.1 routing parity with install.sh.
   The shell installer reroutes Strix Halo / Point + ROCm 7.1 to
   repo.amd.com/rocm/whl/{gfx}/ (which serves torch 2.11.0+rocm7.13.0
   with the upstream _grouped_mm fix). The Python `studio update` path
   only warned and still installed the broken generic rocm7.1 wheel.
   Mirror the override: detect gfx1151/gfx1150 on ROCm 7.1, route to
   the AMD per-gfx index, honour UNSLOTH_AMD_ROCM_MIRROR override.

4. _detect_windows_gfx_arch amd-smi parsing tightened.
   The amd-smi fallback added in the prior commit used a bare
   `\bgfx[1-9][0-9a-z]{2,3}\b` match against the lowercased stdout,
   which could pick up stray gfx references in warnings / device-name
   strings. Anchor on labelled lines first (Target_Graphics_Version,
   ASIC, Arch, gfx) and fall back to the bare match only when no
   labelled line is present.

Tests: 231 passed, 1 skipped in tests/studio/install/test_rocm_support.py;
sim_5301 23 cases pass (6 new sims for the Strix override + amd-smi parsing).

* fix(studio/rocm): multi-GPU selection, Strix sibling handling, defensive cleanups

Round 4 robustness pass based on 5 parallel Opus reviewers of head 21773215.
Seven items from across regression / edge-case / error-paths / architecture
reviews:

1. studio/backend/main.py BNB gate: aligned with the broad ROCm check used
   everywhere else in this PR (torch.version.hip OR 'rocm' in __version__).
   AMD SDK / Radeon Linux wheels do not always populate torch.version.hip;
   without this, main.py would silently skip BNB_ROCM_VERSION while worker.py
   set it.

2. studio/install_python_stack.py _install_bnb_windows_rocm: init _ok = False
   before the try block. Without this, if pip_install_try itself raises
   (e.g. OSError on uv binary missing), the finally block restored env vars
   correctly but the subsequent `if not _ok:` raised UnboundLocalError,
   masking the original exception.

3. studio/install_python_stack.py _detect_windows_gfx_arch:
   - Rewrote to use re.findall (not re.search) on both hipinfo and amd-smi
     output, dedup tokens preserving order, and select via new
     _pick_visible_index() helper.
   - HIP_VISIBLE_DEVICES / ROCR_VISIBLE_DEVICES (first comma entry, integer)
     now picks the right GPU on multi-AMD-GPU hosts. Out-of-range or non-int
     values fall back to the first GPU (matches detect_host behaviour in
     install_llama_prebuilt.py).

4. studio/install_python_stack.py Strix override now consults the runtime
   target before flipping:
   - Previous behaviour intersected gfx_codes with {gfx1151, gfx1150} and
     picked the first Strix arch, ignoring whether HIP_VISIBLE_DEVICES
     selected a non-Strix sibling (e.g. discrete RX 7900 in a mixed APU+dGPU
     box). Could install Strix-specific wheels onto a gfx1100 dGPU.
   - Now resolves the runtime gfx via _pick_visible_index() and only
     overrides when that runtime target is in the Strix set.

5. studio/backend/main.py + studio/backend/core/training/worker.py: ROCm
   version dir scan no longer sorts lexically. Previous sort placed "10.0"
   before "7.0" alphabetically, which would mis-prioritise ROCm 10.x bin
   dirs once AMD ships them. New _ver_key() splits on "." and sorts
   numerically with a string fallback.

6. install.sh Strix override URL: replaced ${var%/} (strips one trailing
   slash) with a while-loop that strips all trailing slashes, matching
   Python's .rstrip("/"). A user setting UNSLOTH_AMD_ROCM_MIRROR with
   "http://corp/whl///" no longer ends up with "http://corp/whl///gfx1151/"
   which strict pip proxies (artifactory, sonatype) 404 on.

7. studio/install_python_stack.py: bumped torch import probe timeout from
   30s to 90s. PyTorch's lazy .so loading can take 60-90s on cold NFS or
   USB-backed venvs. The shorter timeout was producing a false "torch
   missing" classification and reinstalling a working ROCm torch.

Tests: 231 passed, 1 skipped. sim_5301 30 cases pass (added 7 new sims for
multi-GPU detection, Strix sibling handling, and _ok-init regression).

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* fix(studio/rocm): worker BNB/grouped_mm broad gate, install.sh Strix visibility, runtime-only ROCm detection

Round-5 robustness pass based on 20 parallel reviewers of head 96b9e465.

1. studio/backend/core/training/worker.py - BNB version pin / dynamo disable
   / _grouped_mm fallback block was still gated on torch.version.hip alone
   despite the torchao stub block above already using the broad check. AMD
   SDK / Radeon Windows wheels (torch.__version__ contains "rocm" but
   torch.version.hip is None) silently skipped the Windows ROCm runtime
   patches. Aligned to the same broad check (8/20 reviewers).

2. studio/backend/core/training/worker.py - _hip_ver_at_least() now also
   parses the ROCm version out of torch.__version__ (e.g. "2.11.0+rocm7.13.0")
   when torch.version.hip is missing, so the kernel-fix gate is correct for
   SDK / Radeon wheels too.

3. studio/backend/core/training/worker.py - _grouped_mm_safe_impl with
   offs=None now picks torch.bmm/matmul for 3-D inputs instead of always
   calling torch.mm. The real _grouped_mm accepts 3-D batched matmul; the
   prior fallback raised "self must be a matrix" on MoE workloads (2/20).

4. studio/backend/main.py - dropped the HIP_PATH / ROCM_PATH env-var gate
   from the BNB block; probe torch directly. Runtime-only Radeon / AMD SDK
   Windows installs do not set those SDK env vars but still ship ROCm torch
   (5/20 reviewers).

5. install.sh - Strix override now collects every gfx token from
   rocminfo / amd-smi (in enumeration order), then indexes by
   HIP_VISIBLE_DEVICES / ROCR_VISIBLE_DEVICES so a mixed Strix iGPU + non-
   Strix dGPU host where the user selected the dGPU does NOT get rerouted
   to the Strix per-gfx index. Mirrors the Python update path (5/20 reviewers).

6. install.sh - Strix detection chain now also probes `amd-smi static --asic`,
   matching the PowerShell installer (1/20). Closes the gap on runtime-only
   Strix hosts where `amd-smi list` does not surface a gfx token.

7. studio/install_python_stack.py - _has_rocm_gpu() now has the sysfs KFD
   topology fallback (/sys/class/kfd/kfd/topology/nodes/*/gpu_id), matching
   install.sh. On minimal package-managed installs without rocminfo /
   amd-smi GUI tools, `studio update` can now detect the GPU and repair the
   venv instead of returning early (2/20).

8. studio/install_python_stack.py - _detect_amd_gfx_codes() now falls back
   to `amd-smi list` and `amd-smi static --asic` when rocminfo is missing
   (2/20). Strix routing on runtime-only Radeon hosts now matches what
   install.sh has done for a while.

9. studio/install_python_stack.py - Strix override now applies even when
   has_hip_torch is True. The whole point of the override is to repair an
   existing broken torch.version.hip == "7.1" install; skipping the
   reinstall left users on the known _grouped_mm segfaulting stack (3/20).

Tests: 231 passed, 1 skipped. sim_5301 30 cases pass. sim_cross 12 pass.

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* fix(studio/rocm): code review hardening pass

- main.py: numeric DLL sort (string sort picked rocm72 over rocm713);
  add basename() to regex; log warning on detection failure; log info
  when BNB_ROCM_VERSION is set (mirrors worker.py)
- worker.py: explicit len-guard in _hip_ver_at_least() with warning
  logs instead of silent IndexError/ValueError swallow
- hardware.py: isinstance(result, dict) guard before result.get() in
  _smi_query() to prevent AttributeError on non-dict backend returns
- amd.py: round() before int() on parsed GPU IDs; log warning when
  truncation occurs (defensive against malformed amd-smi output)
- setup.sh: quote --gcc-install-dir value in CMAKE_HIP_FLAGS so paths
  with spaces do not break the CMake argument
- install.ps1, setup.ps1: apply colon-split + ToLower() to hipinfo
  gcnArchName match (consistent with each other and with setup.sh)
- install.sh: tighten ROCm tag case patterns to explicit
  rocmX.Y|rocmX.Y.* to avoid unintended prefix matches

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* fix(studio/training): GPU OOM guard to prevent system freeze on VRAM exhaustion

On RDNA 4 (gfx1200/gfx1201) and other ROCm GPUs, exhausting VRAM can
cause a HIP driver hang that freezes the entire system rather than
raising a recoverable Python exception.

Two-part fix:
- set_per_process_memory_fraction(0.90) caps the HIP/CUDA allocator at
  90% of VRAM so PyTorch raises OutOfMemoryError before hitting the
  hardware limit, keeping the driver alive and the system responsive
- top-level exception handler detects OOM errors by type and message
  and surfaces a clear actionable message to the UI (reduce
  max_seq_length, enable gradient_checkpointing, lower batch size)
  instead of the raw CUDA/HIP error string

* fix(studio/rocm): OOM guard ROCm-only + unified memory, multi-GPU arch selection

OOM guard (worker.py):
- Scope to _hw.IS_ROCM only -- NVIDIA CUDA has a graceful OOM path and
  does not need the allocator cap
- Detect unified memory by comparing torch VRAM against psutil system RAM;
  use 0.80 on unified-memory APUs (gfx1151 Strix Halo) where the GPU pool
  is carved from host RAM, 0.90 on discrete cards

Multi-GPU arch selection:
- install.ps1 / setup.ps1: replace -match (first hit only) with
  [regex]::Matches() to collect all gcnArchName entries, then index by
  HIP_VISIBLE_DEVICES / ROCR_VISIBLE_DEVICES
- install_python_stack.py: index into full token list before dedup so
  HIP_VISIBLE_DEVICES=2 on [gfx1100, gfx1100, gfx1151] resolves gfx1151
- install.sh: remove awk dedup from gfx token collection for same reason

GCC multiarch (setup.sh):
- Only append -linux-gnu when gcc -print-multiarch does not already return
  the full triple, fixing double-suffix on Ubuntu 24.04

* fix(tests): update ROCm version cap expectations from rocm7.1 to rocm7.2

Daniel's normalisation commit updated the cap from rocm7.1 to rocm7.2
since PyTorch now publishes that index and rocm7.2 ships torch 2.11.0.
Test expectations were stale.

* fix(tests): correct MLX smoke test losses_per_step assertion

logging_steps=1 with max_steps=30 produces 30 loss entries, not 7.
The assertion was stale from a previous config.

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* fix(studio/worker): detect unified-memory APU by GPU name not VRAM/RAM ratio

The previous heuristic (VRAM > 50 % of system RAM) false-positived on discrete
cards in low-RAM systems — e.g. RX 9060 XT 16 GB on a 16 GB or 24 GB machine
would trip the unified-memory path and log "unified memory host" when it should
say "discrete".

AMD iGPUs (gfx1150/gfx1151 Strix Halo, Strix Point, etc.) expose names with a
digit+M suffix ("AMD Radeon 890M"), while discrete cards use "RX NNNN [XT|XTX]"
naming.  Matching that suffix is reliable across all current ROCm-capable AMD
consumer GPUs and does not require psutil.

Also includes the device name in the log line to ease future debugging.

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* fix(install/setup.ps1): force array on hipinfo gcnArchName parse to fix single-GPU arch truncation

When [regex]::Matches() finds exactly one match, PowerShell's pipeline
unwraps the result to a scalar string.  Indexing a scalar string with [0]
returns the first *character*, so a one-GPU system would parse
gcnArchName "gfx1200" as "g", which is not in the supported arch map
and triggers the CPU-only fallback.

Wrapping with @() forces the result to remain an array regardless of
match count.  On a single-GPU machine the arch is now correctly read as
"gfx1200" (or whatever the full name is) so the ROCm wheel index is
selected.

Reproducer: hipinfo exits 0 and outputs exactly one gcnArchName line.
Without @(), $_hipAllArches = "gfx1200" (String); $_hipAllArches[0] = 'g'.
With @(), $_hipAllArches = @("gfx1200") (Object[]); $_hipAllArches[0] = "gfx1200".

* fix(studio/rocm): classify unified-memory APU via VRAM/RAM ratio, not arch list

Replace the gcnArchName allowlist {gfx1150, gfx1151} with a
psutil-based heuristic: unified APUs expose the entire system RAM
as the HIP pool (ratio ≥ 0.90), discrete cards are well below that.
No arch name required — future APUs classify correctly without code changes.

Also removes the stale import re / \d[Mm]\b device-name regex that
5d84704 left behind, and logs vram/sys GiB for easier on-hardware
verification.

Addresses h34v3nzc0dex review: Radeon 8060S (gfx1151, 128 GiB
unified) now correctly gets 0.80 cap instead of 0.90.

* fix(studio/rocm): revert to gcnArchName for unified-memory APU classification

VRAM/RAM ratio >= 0.90 false-positives on machines where discrete VRAM
equals system RAM (e.g. RX 9060 XT 16 GB + 16 GB system RAM → ratio 1.0,
incorrectly classified as unified → wrong 0.80 cap applied).

gcnArchName is the correct signal: naming-independent, stable within a
product family, and already parsed throughout this PR. Unified set is
{gfx1150, gfx1151} (Strix Point + Strix Halo).

* fix(studio/llama-prebuilt): resolve hipinfo via HIP_PATH/ROCM_PATH on Windows

shutil.which("hipinfo") returns None when the HIP SDK bin dir is not on
PATH -- the HIP SDK installer sets HIP_PATH/ROCM_PATH but does not always
add the bin dir to PATH. This caused has_rocm=False in the prebuilt asset
selector, so AMD ROCm machines got the CPU llama.cpp zip instead of the
HIP one, silently running all chat inference on CPU.

Add _resolve_exe() that falls back to %HIP_PATH%\bin and %ROCM_PATH%\bin
when shutil.which() finds nothing, mirroring the same fallback already
present in setup.ps1.

* fix(studio/llama-prebuilt): pass --has-rocm from setup.ps1 to skip re-detection

The Python prebuilt installer re-detects ROCm independently via
shutil.which("hipinfo"), which fails when hipinfo is not on PATH
(HIP SDK sets HIP_PATH but doesn't always add the bin dir to PATH).
This caused has_rocm=False and downloaded the CPU llama.cpp zip even
on confirmed AMD ROCm machines.

setup.ps1 already performs reliable ROCm detection with its own
HIP_PATH/ROCM_PATH fallback. Add --has-rocm flag to
install_llama_prebuilt.py so setup.ps1 can forward its result directly,
and pass it whenever $HasROCm is true. The Python script then overrides
has_rocm=True in the HostInfo without re-probing.

* fix(studio/llama-prebuilt): add HIP asset to simple-policy Windows path

direct_upstream_release_plan (used by --simple-policy, which setup.ps1
always passes) only checked has_usable_nvidia on Windows and fell
straight to CPU for AMD ROCm machines, ignoring has_rocm entirely.
The --has-rocm override had no effect because the simple-policy code
path never reached resolve_asset_choice where has_rocm was checked.

Add an elif branch for has_rocm that tries the upstream HIP asset
(llama-TAG-bin-win-hip-radeon-x64.zip) before falling through to the
CPU fallback, consistent with the non-simple-policy path.

* fix(studio/setup.ps1): auto-remove mismatched llama.cpp install kind

When an existing llama.cpp install is the wrong kind for the current
GPU (e.g. windows-cpu on an AMD ROCm machine that should have
windows-hip), the prebuilt installer skips on tag match and never
upgrades. Read install_kind from UNSLOTH_PREBUILT_INFO.json before
invoking the installer and remove the directory if the kind doesn't
match, forcing a fresh download of the correct variant.

* fix(studio/setup.ps1): show live PyTorch install output in verbose mode for ROCm

The ROCm torch reinstall (setup.ps1 phase) always silently captured
output, so in --verbose mode the torch downgrade mid-install
(2.11.0+rocm → 2.10.0 → 2.11.0+rocm) looked like the final state was
2.10.0. Match the CPU/CUDA blocks which show live uv output when
$script:UnslothVerbose is set.

* fix(rocm/windows): set ROCBLAS_TENSILE_LIBPATH for bundled rocblas.dll

The llama.cpp ROCm prebuilt bundles rocblas.dll next to the binary but
not the Tensile kernel library files it depends on at runtime
(rocblas/library/TensileLibrary*.dat + *.hsaco).  The bundled DLL
searches for these files relative to its own location by default, i.e.
<binary_dir>/rocblas/library/, which does not exist in the prebuilt
install tree.  This causes a silent crash on the very first GEMM
(prefill) with no output from llama-server, seen by the caller as
WinError 10054 / 10061.  Model load and the single-token warmup pass
because they use simpler code paths that do not trigger rocBLAS GEMM.

Fix: set ROCBLAS_TENSILE_LIBPATH in the subprocess env to
<HIP_PATH>/bin/rocblas/library so the bundled DLL finds the kernel
files from the system ROCm installation.  Uses setdefault so a user-
supplied env var is never overwritten.  No-ops on CUDA and CPU (no
HIP_PATH) and on Linux (win32 branch only).

Reproducer log:
  rocBLAS error: Cannot read .../Release/rocblas/library/TensileLibrary.dat
  rocBLAS error: Could not initialize Tensile host:
  directory_iterator: The system cannot find the path specified.

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* fix(install.sh): restore gfx token dedup in Strix multi-GPU awk indexer

536a54df removed the per-source `| awk '!seen[$0]++'` dedup from the
_gfx_all collection step but left the indexer awk as bare NF, so on a
mixed-arch host (e.g. dGPU gfx1100 + Strix iGPU gfx1151) where
rocminfo emits each gfx token twice (Name: field + ISA triple),
HIP_VISIBLE_DEVICES=1 indexed vals[1] = the second gfx1100 occurrence
instead of gfx1151, triggering the Strix routing on the wrong GPU.

Add !seen[$0]++ to the indexer awk so duplicate tokens from the same
GPU collapse to one entry before the HIP_VISIBLE_DEVICES index is
applied -- matching exactly what the Python side does with dict.fromkeys()
in _detect_amd_gfx_codes(). The comment above the block ("skip
duplicates") already documented this as the intended behaviour.

* fix(studio/install): correct _TOTAL progress count on Windows

base_total += 3 fired for all non-macOS platforms including Windows,
but flash-attn (line 1620) and ROCm torch final (line 1705) are both
guarded by 'not IS_WINDOWS and not IS_MACOS', so on Windows with torch
enabled _TOTAL was 13 while only 11 _progress() calls actually execute.

Split into +1 for the ROCm torch check (all non-macOS) and +2 for the
two Linux-only steps, so Windows gets _TOTAL=11 and Linux gets 14.

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* fix(install.ps1): enforce torch>=2.11.0 for gfx120X and Strix on Windows

The AMD arch-specific index (repo.amd.com/rocm/whl/gfx120X-all/ and
gfx1151/) publishes torch wheels from 2.7.1 through 2.11.0. Without a
version floor pip can resolve to torch 2.10.0+rocm7.12 on RDNA 4
(gfx120X) or torch 2.10.0+rocm7.1 on Strix (gfx1151/gfx1150), both of
which have a null-pointer crash in torch._C._grouped_mm (TheRock
issues #5284 / #3284). torch 2.11.0+rocm7.13 contains the fix.

Add $ROCmTorchFloor alongside $ROCmIndexUrl: set to torch>=2.11.0 for
the two affected arch families, null for all others. Wire it into the
uv pip install call so the broken wheels are never selected.

* fix(rocm/windows): address Codex nits - deterministic DLL suffix, CUDA llama.cpp kind, HIP_VISIBLE_DEVICES arch indexing

- install_python_stack.py / worker.py: _detect_bnb_rocm_dll_ver() and the
  inline worker probe now collect ALL libbitsandbytes_rocm*.dll suffixes and
  return max() by numeric value instead of stopping at the first glob hit.
  Filesystem glob order is not guaranteed; this ensures '713' always wins
  over '72' when both variants are present in the wheel.

- setup.ps1 (expectedKind): add 'windows-cuda' branch so NVIDIA hosts are
  not treated as 'windows-cpu'. Previously an existing windows-cuda prebuilt
  was always considered a mismatch on non-ROCm machines, forcing an
  unnecessary re-download on every update.

- setup.ps1 (amd-smi gfx arch): collect ALL gfx tokens from amd-smi list
  output in GPU order and honour HIP_VISIBLE_DEVICES / ROCR_VISIBLE_DEVICES
  when selecting which arch to use. On mixed-arch AMD systems where the
  visible GPU is not the first enumerated one, this prevents installing an
  incompatible wheel index. Falls back to index 0 (same as before) when the
  visibility var is unset or is a comma-separated list.

- test_rocm_support.py: add test_picks_highest_suffix_when_multiple_dlls to
  cover the multi-DLL case that was previously untested.

* fix(rocm): misleading amd-smi log, BNB spec consistency, torch ceiling for AMD index

amd.py: split 'returncode != 0 or not stdout' into two separate branches.
Previously, exit-0 with empty output logged 'amd-smi returned code 0' (which
reads as success, not a warning) and incorrectly incremented the circuit-breaker
counter. Now: non-zero exit logs the code and counts toward the limit as before;
empty stdout on exit 0 logs at DEBUG level and does not penalise the counter
(amd-smi --json always emits at least [] on exit 0, so this branch is rare and
is not a tool failure).

main.py: replace spec.origin / os.path.dirname() with
spec.submodule_search_locations to match install_python_stack.py and worker.py.
For normal wheel installs both approaches reach the same directory, but using
submodule_search_locations is the canonical way and handles editable bitsandbytes
installs correctly. Also use max() by numeric suffix (same as the other two sites)
instead of a sort-then-break loop.

install.ps1: add <2.12.0 ceiling to the torch constraint for gfx120X (RDNA 4)
and gfx1151/gfx1150 (Strix). AMD actively publishes new versions on their
per-arch index; without a ceiling, a future 2.12.0+rocmX.Y wheel would be
pulled in automatically before being validated on these architectures. The
ceiling matches the existing Linux install_python_stack.py constraint for the
same arches. Bump both when 2.12.x is confirmed working.

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* fix(rocm): torch floor in setup.ps1, torchvision pin for Strix, rocmsdk in _hip_ver_at_least

setup.ps1: add \ (mirrors install.ps1) and derive \
from it. Previously the AMD index install called 'Fast-Install torch torchvision
torchaudio --force-reinstall --index-url \' with no version
constraint, so pip could resolve torch 2.10.0+rocm7.12 for gfx1151/gfx1200 --
the exact broken wheel the PR is meant to avoid. Now gfx120X and Strix enforce
'torch>=2.11.0,<2.12.0', matching install.ps1 and the Linux constraint.

install_python_stack.py: pin torchvision and torchaudio in _strix_override_pkgs.
The Strix Linux override uses --index-url (exclusive, no PyPI fallback); bare
unversioned 'torchvision' and 'torchaudio' could resolve a build from AMD's
index targeting a different torch major, causing ABI/version mismatches at
runtime. Now pinned to '>=0.26.0,<0.27.0' and '>=2.11.0,<2.12.0' respectively,
matching _ROCM_TORCH_CONSTRAINT['rocm7.2'].

worker.py: extend _hip_ver_at_least to handle AMD SDK wheel version strings.
The fallback regex r'rocm(\d+)\.(\d+)' cannot match '2.9.0+rocmsdk20251116'
(no rocmX.Y component), so the function always returned False on SDK/Radeon
wheels -- installing the Python _grouped_mm workaround on wheels that already
have the working HIP kernel. Added a second check: if the version string
contains '+rocmsdk', assume >= 7.13 (the rocmsdk format post-dates the
gfx120X null-kernel fix) and skip the fallback.

* fix(rocm): warn on OOB HIP_VISIBLE_DEVICES, bail on empty numeric_ids mask

- setup.ps1: when HIP/ROCR_VISIBLE_DEVICES names an index beyond the
  detected GPU count, emit a yellow warning and fall back to GPU 0
  instead of silently reading allGfxArches[-1] (wrong arch)
- hardware.py _reconcile_primary_rocm_unified_memory: distinguish
  numeric_ids=None (no env var, use torch ordinal 0) from numeric_ids=[]
  (empty mask / HIP_VISIBLE_DEVICES=-1, no GPU visible); bail out early
  in the empty case to avoid querying torch.device(0) incorrectly

* fix(rocm): gate StubSubpackageFinder on win32 ROCm, add gcnArchName fallbacks

- worker.py _StubSubpackageFinder: the meta_path append was running on
  every platform on every call to run_training_process; moved it inside
  the if _is_win32_rocm: block since stubs are only seeded there and the
  finder is a pure accumulation on Linux/Windows CUDA
- worker.py OOM guard: AMD SDK / Radeon wheels may not populate
  gcnArchName, causing Strix Halo to be misclassified as discrete and
  get the 0.90 cap (12.8 GB OS headroom) instead of 0.80 (25.6 GB);
  now tries gcn_arch_name / arch_name / gfx_arch_name variants first,
  then falls back to device-name matching (890M -> Strix Halo,
  880M -> Strix Point) with a debug log when the fallback fires

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* fix(rocm): pin torchvision/torchaudio in setup.ps1, remove -Unique from arch array

- setup.ps1 ROCm torch install: torchvision and torchaudio were passed
  bare alongside pinned torch>=2.11.0,<2.12.0 for gfx1151/gfx1200 arches.
  AMD publishes packages independently so a future torchvision 0.27 (for
  torch 2.12) on the same arch index would cause pip ResolutionImpossible
  or an ABI-incompatible install. Added torchvisionFloorMap and
  torchaudioFloorMap mirroring install_python_stack.py's strix override
  (torchvision>=0.26.0,<0.27.0, torchaudio>=2.11.0,<2.12.0) and derived
  ROCmVisionSpec/ROCmAudioSpec used in all three Fast-Install call sites.

- setup.ps1 amd-smi arch detection: Select-Object -Unique was collapsing
  same-arch multi-GPU arrays (e.g. two gfx1151 APUs -> 1-element array)
  causing HIP_VISIBLE_DEVICES=1 to trigger a false out-of-range warning
  and fall back to GPU 0 even though the correct GPU would have been at
  index 1. Removed -Unique; added comment noting the positional-index
  assumption and its non-contiguous-GPU limitation.

* fix(rocm): add 8060s/8050s to OOM guard device-name fallback, extract classifier helper

Path 3 of the OOM guard device-name fallback only checked for 890m/880m
(gfx1150 Strix Point SKU names). Strix Halo (gfx1151) ships as Radeon 8060S
(Ryzen AI MAX+ 395) and Radeon 8050S (cut-down SKU) -- neither matches, so
the fallback returned is_unified=False and applied the 0.90 fraction instead
of 0.80, leaving ~12.8 GiB OS headroom on a 128 GiB pool instead of ~25.6 GiB.

Fix: add 8060s and 8050s to the name-match set. Also correct the comment that
mislabelled 890M as a Strix Halo name (it is Strix Point).

Refactor: extract the three-path classifier into _rocm_classify_unified_memory()
so it can be unit-tested directly. Add 31 test cases in test_rocm_oom_guard.py
covering all three paths and the regression case (Radeon 8060S Graphics).

Reported-by: h34v3nzc0dex

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* fix(rocm): pass explicit dtype on bf16-unsupported hardware (RDNA2)

dtype=None lets unsloth auto-detect the model dtype. On RDNA2 (gfx103x,
e.g. RX 6600) is_bfloat16_supported() incorrectly returns True, so unsloth
picks bf16 and the first bf16 kernel dispatch triggers:

  LLVM ERROR: Cannot select: intrinsic %llvm.amdgcn.fdot2.bf16.bf16

Replace every dtype=None in load_model() with _auto_dtype which resolves
to None when bf16 is supported (all modern NVIDIA + RDNA3+) and
torch.float16 otherwise. This gives RDNA2 users a working float16
training path without touching NVIDIA behaviour at all.

Fixes: https://github.com/unslothai/unsloth/issues/5337

* fix: reduce log noise for expected non-issues on Windows ROCm

Three log lines fired at warning/error level for conditions that are
completely expected on a Windows HIP SDK-only setup:

amd.py
- amd-smi WinError 2 (FileNotFoundError): downgrade warning -> debug.
  amd-smi ships with Adrenalin, not the HIP SDK; absence is normal.
- 'disabling' message: downgrade warning -> info with clearer text
  'not available (not installed; expected on HIP SDK-only systems);
  GPU VRAM polling disabled'

hardware.py
- torch.distributed.Store missing: downgrade warning -> debug.
  The distributed stub added in this PR intentionally omits Store; the
  attention-impl fallback to eager is expected and non-actionable.

worker.py
- causal-conv1d: add early Windows exit (info) in both
  _ensure_causal_conv1d_fast_path and _causal_conv1d_install hook;
  no cp313/win_amd64 wheel exists, so the install always fails.
- FLA: add early Windows exit (info) in
  _ensure_flash_linear_attention_unconditional; triton dependency has
  no cp313/win_amd64 wheel.
- Defense-in-depth: _install_package_wheel_first non-HIP PyPI failure
  logs info+debug on Windows instead of error; FLA failure logs
  info+debug on Windows instead of warning.

* [AMD] FIx installation of bitsandbytes when it's from .dev and skip rebuilding llama.cpp if we build it manually.

* fix: use force_pip for Windows ROCm bitsandbytes prebuilt wheel install

uv rejects the bnb continuous-release wheel due to filename/metadata
version mismatch (1.33.7.preview vs 0.50.0.dev0). Switch to force_pip=True
(pip bypass) instead of the UV_SKIP_WHEEL_FILENAME_CHECK env var workaround
-- cleaner and consistent with how the Linux path handles it.

BNB_ROCM_VERSION is still set post-install to the detected DLL suffix so
the worker subprocess loads the correct libbitsandbytes_rocm{VER}.dll even
when torch.version.hip reports a newer HIP version than the wheel ships.

* fix: three small correctness fixes found in PR review

- _install_bnb_windows_rocm: use UV_SKIP_WHEEL_FILENAME_CHECK=1 with
  try/finally instead of force_pip=True so the env var is always
  restored and the failing CI test passes
- _determine_attention_impl_for_gpu_estimate: gate torch._C distributed
  stubs on IS_ROCM so Windows CUDA users keep the real extension
- install.ps1 amd-smi fallback: collect all gfx tokens and index by
  HIP_VISIBLE_DEVICES, matching the hipinfo path on multi-GPU hosts

* fix: stub torchao in export subprocess on Windows ROCm

On Windows, the ROCm build of PyTorch ships without the distributed
C extension (torch._C._distributed_c10d). torchao, which is pulled in
transitively by transformers.quantizers at import time, walks into
torch.distributed._functional_collectives -> distributed_c10d and
crashes with:

  No module named 'torch._C._distributed_c10d'; 'torch._C' is not a package

This only affected the export subprocess because the training subprocess
already applied an identical torchao stub (introduced separately to fix
the same root cause). The export subprocess had no such guard and died
during 'Importing Unsloth...' before any model loading could happen.

Fix: apply the same _StubSubpackageFinder / torchao stub pattern to the
export subprocess entry point, gated on Windows ROCm detection, before
any import of transformers or unsloth_zoo.

Root cause tracked in ROCm/TheRock#3284 (libuv / torch.distributed
missing on Windows ROCm builds).

Ref: https://github.com/ROCm/TheRock/issues/3284

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* install.sh, setup.sh: add GPU arch step logging to match PS1 scripts

Both shell scripts were missing the step "gpu" terminal log block that
install.ps1 and setup.ps1 emit. This adds equivalent output: GPU label
with gfx arch (e.g. "AMD ROCm (gfx1151)"), ROCm root path, hipconfig
version, and marketing name substep. Includes the same gfx arch detection
chain (rocminfo → amd-smi list → amd-smi static --asic), UNSLOTH_ROCM_GFX_ARCH
env override, and name-based arch inference table (Strix Halo/Point, RDNA 3/4)
as the PS1 versions. install.sh also replaces bare echo blocks for the AMD
ROCm and CPU-only cases with formatted substep output.

* Fix BNB_ROCM_VERSION gate, ROCm GPU mask preference, APU unified memory and Release build for PR #5301

- main.py: gate BNB_ROCM_VERSION on the rocm bnb DLL or HIP_PATH/ROCM_PATH instead of importing torch on every Windows host
- hardware.py: prefer HIP/ROCR visible-device masks only on ROCm hosts so a stale mask cannot override CUDA_VISIBLE_DEVICES on NVIDIA
- llama_cpp.py: set GGML_CUDA_ENABLE_UNIFIED_MEMORY=1 only for unified-memory APUs (gfx1150/gfx1151)
- setup.sh: pass -DCMAKE_BUILD_TYPE=Release for the HIP source build
- add test_amd_apu_unified_memory.py

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* fix: guard recompile_limit + fix AMD VRAM monitor fallback

trainer.py: torch._dynamo.config.recompile_limit does not exist in
some ROCm torch builds (e.g. pytorch.org/whl/rocm6.2 wheels). Guard
the assignment so training doesn't crash on RDNA2/RDNA3.

hardware.py: when amd-smi/nvidia-smi is unavailable or returns no
usable data (HIP SDK-only Windows, Docker, unexpected JSON format),
the existing fallback used torch.cuda.memory_allocated() which is
process-specific and reads near-zero even with a fully loaded model.
Switch to torch.cuda.mem_get_info() via _torch_get_per_device_info()
which reports system-wide VRAM occupancy so the GPU monitor shows
real usage on all AMD systems without requiring amd-smi.

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* fix: Windows VRAM monitor via Performance Counter API

When amd-smi/nvidia-smi is unavailable on Windows, query dedicated GPU
VRAM via Windows Performance Counters (same source as Task Manager).
This gives system-wide cross-process usage, fixing the near-zero reading
caused by torch.cuda.mem_get_info only seeing the Studio server process.

Linux fallback path unchanged (mem_get_info is system-wide on ROCm).

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* fix: rename to _rocm_windows_perf_counter_vram_gb, scope to IS_ROCM

Function is AMD ROCm specific — amd-smi absent on Windows when only the
HIP SDK is installed. Scoped to IS_ROCM so NVIDIA Windows path is
untouched (nvidia-smi handles that case).

* fix: AMD VRAM monitor — Linux DRM sysfs + Windows perf counter

Linux: read /sys/class/drm/card*/device/mem_info_vram_used|total for
system-wide GPU memory across all processes. No tools required, always
present on Linux AMD systems.

Windows: Windows Performance Counter API (already added).

Both paths are gated on IS_ROCM and only fire when amd-smi is absent.
torch mem_get_info remains as last resort (process-local).

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* fix: AMD GPU monitor — utilization, temperature, and power for Windows and Linux fallback paths

- Windows: GPU utilization via \GPU Engine(*engtype_3D*)\Utilization Percentage perf counter
- Windows: temperature and power via ADL (atiadlxx.dll, ships with Adrenalin)
- Linux: GPU utilization via DRM sysfs gpu_busy_percent
- Linux: temperature via hwmon temp1_input (millidegrees C)
- Linux: power via hwmon power1_average / power1_input (microwatts)

All paths are no-op fallbacks (None) when the source is unavailable.
Mirrors what nvidia-smi provides on the CUDA path.

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* fix: remove ADL ctypes — does not support AMD iGPU (Strix Halo)

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---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Daniel Han <danielhanchen@gmail.com>
Co-authored-by: Lee Jackson <130007945+Imagineer99@users.noreply.github.com>
Co-authored-by: Erland366 <erland.pg366@gmail.com>
Co-authored-by: danielhanchen <michaelhan2050@gmail.com>
2026-05-29 22:29:56 -07:00
Daniel Han
a62eb80f7c
Detect CUDA UMD Version from newer nvidia-smi output (fixes #5812) (#5817)
* Detect CUDA UMD Version from newer nvidia-smi output (#5812)

Newer NVIDIA drivers (e.g. 610.x on Windows) print the driver's max
CUDA capability as "CUDA UMD Version: X.Y" instead of the legacy
"CUDA Version: X.Y" header.  The installers and Studio setup scripts
were only matching the legacy spelling, so on a fresh RTX 5090
laptop with a 13.x driver they failed to detect any CUDA version
and fell through to the cu126 wheel default.

Accept both spellings everywhere we parse nvidia-smi output:

- install.ps1: Get-TorchIndexUrl regex now allows " UMD"
- install.sh: two-expression sed (POSIX BRE has no "?"); the two
  patterns are mutually exclusive per line, head -1 picks the match
- studio/setup.ps1: Get-PytorchCudaTag and the $DriverMaxCuda
  detector both relaxed
- studio/install_llama_prebuilt.py: substring scan replaced with a
  regex search using the same pattern
- tests/sh/test_get_torch_index_url.sh: new make_mock_smi_umd helper
  plus three UMD cases (13.3 -> cu130, 12.8 -> cu128, 11.8 -> cu118);
  all 30 tests pass locally

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-05-27 10:37:21 -07:00
DoubleMathew
ad2ba4202a
Harden Linux llama.cpp prebuilt reuse (#5796)
Run the Linux llama.cpp prebuilt dependency preflight before reusing an existing install, so cached trees missing newly required per-tool shared libraries (libllama-server-impl.so / libllama-quantize-impl.so introduced upstream between b9279 and b9283) trigger a repair instead of silently skipping reinstall and failing at runtime. Adds a regression test for the new lib*-impl.so overlay layout.
2026-05-27 05:01:04 -07:00
Daniel Han
ca55acbb5f
Studio: unblock install on Linux ARM64 + Windows ARM64 + Intel Mac (#5790)
* Studio: unblock cross-platform install on Linux ARM64 + Windows ARM64

Three independent bugs that together prevent `install.sh` /
`install.ps1` from completing on the ARM machines GitHub Actions now
ships (`ubuntu-24.04-arm`, `windows-11-arm`) and on equivalent real
hosts (Ampere Altra, Raspberry Pi 5, Snapdragon X Elite, ...).

Validated on the staging-2 cross-OS smoke suite -- five per-OS
workflows pinned to `ubuntu-latest`, `ubuntu-24.04-arm`, `macos-14`,
`macos-15-intel`, `windows-11-arm`. Before this change Windows ARM
exits 1 in the winget gate and Linux ARM source-builds llama.cpp
because the prebuilt selector returns 0 attempts; with it both reach
healthy /api/health.

1. studio/install_llama_prebuilt.py -- resolve_simple_install_release_plans
   had explicit branches for windows+x86_64, macos+arm64, macos+x86_64
   and linux+x86_64 only. Upstream ggml-org/llama.cpp ships
   `llama-bNNNN-bin-ubuntu-arm64.tar.gz` and
   `llama-bNNNN-bin-win-cpu-arm64.zip` (visible in the b9334 release
   manifest), so the missing elif branches force every Linux ARM64 and
   Windows ARM64 host into a source build even when a perfectly good
   upstream prebuilt is one HTTP GET away. Two new branches mirror the
   existing CPU variants; runtime_patterns_for_choice and
   runtime_payload_health_groups gain `linux-arm64` (.so layout) and
   `windows-arm64` (.dll layout) so the health-check pass-through
   matches the asset shape.

2. studio/setup.sh -- the helper-release-repo selector routed any
   non-x86_64 Linux to `unslothai/llama.cpp`, which only publishes the
   Linux CUDA bundle set. The result on Linux ARM64 was a guaranteed
   `direct_linux_release_plan` raise of "no compatible Linux prebuilt
   asset was found" on every release in the scan, then a source-build
   fallback. Pin Linux ARM64 (CPU-only) to `ggml-org/llama.cpp` so the
   new branch in (1) can see the upstream asset. setup.ps1 already
   hardcodes `ggml-org/llama.cpp`, so Windows ARM64 picks up (1)
   without an additional change.

3. install.ps1 -- the winget pre-check hard-failed before Python or uv
   detection. `windows-11-arm` runners (and many corporate Windows
   hosts without the Microsoft Store) ship without winget but already
   have a usable Python plus the Astral uv PowerShell installer
   reachable. Demote the winget check to a soft warning, defer the
   hard failure to the Python install branch (which is the only path
   that genuinely needs winget), and let the uv install fall through
   to `https://astral.sh/uv/install.ps1` when winget is absent. The
   uv PowerShell installer was already the existing fallback for the
   "winget present but uv install failed" case; this just makes it
   the primary path on hosts without winget.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Studio: filter torchcodec on platforms without wheels

torchcodec 0.10.0 ships wheels for manylinux_2_28_x86_64,
macosx_12_0_arm64, and win_amd64 only -- visible on its PyPI page and
in the resolver error reported by #4446. install_python_stack.py
pulls torchcodec via extras-no-deps.txt, which is now installed
unconditionally during `unsloth studio update --local` (the update
command has no --no-torch flag). Result on Linux aarch64 /
Windows ARM64 / Intel Mac (when invoked outside the install.sh
auto-skip-torch path):

  ERROR: Could not find a version that satisfies the requirement
  torchcodec==0.10.0 (from versions: 0.0.0.dev0, ...)
  ERROR: No matching distribution found for torchcodec==0.10.0
  error          Installing extras (no-deps) (pip) failed (exit code 1)

`NO_TORCH_SKIP_PACKAGES` already lists torchcodec but only fires
when NO_TORCH is true -- the update path inherits no NO_TORCH from
the original install and inferrence falls back to IS_MAC_INTEL only,
so Linux aarch64 / Windows ARM64 sail past the guard. Adds a
platform predicate PLATFORM_LACKS_TORCHCODEC_WHEEL and applies the
torchcodec filter unconditionally there, independent of NO_TORCH.

Surfaced by the staging-2 cross-OS smoke `unsloth studio update`
step on ubuntu-24.04-arm; verified the same step is green with this
patch overlaid.

* Studio: skip librosa on no-torch hosts (unblocks Intel Mac install)

Closes the last cross-platform install gap surfaced by the staging-2
cross-OS smoke (see unslothai/unsloth#5046 for the original report):
`install.sh --local` on macos-15-intel fails at

  × Failed to build `llvmlite==0.47.0`
  error: failed-wheel-build-for-install
  ╰─> llvmlite
  error          studio setup failed (exit code 1)

Root cause: upstream llvmlite dropped the macosx_x86_64 wheel between
0.42.0 and 0.46.0 (https://pypi.org/project/llvmlite/0.47.0/#files --
only macosx_arm64 / manylinux / win_amd64 remain). pip falls back to
a from-source build of llvmlite's FFI, which needs LLVM 14/15 dev
headers and matching llvm-config -- not present in Xcode Command
Line Tools' libclang and not installed by install.sh's MAC_INTEL
deps branch.

llvmlite enters Studio's tree via librosa -> numba -> llvmlite in
extras.txt. openai-whisper (extras.txt:28) would also pull numba but
is already filtered on no-torch hosts. Adding librosa to the same
NO_TORCH_SKIP_PACKAGES set makes the install go through cleanly on
Intel Mac (auto-detected NO_TORCH=true via the MAC_INTEL branch) and
on any user-passed --no-torch host where torch-dependent audio
pipelines would not run anyway.

Tracked / verified on the danielhanchen/unsloth-staging-2#154 smoke
matrix (macos-15-intel).

* Studio UI tests: retry evaluate_fetch on transport-level failure (PR #5790)

Mac Studio UI CI on this PR (run 26496820814, job 78026959359) failed
with /api/models/list status=0 error='TypeError: Failed to fetch'.
The artifact studio.log shows the server answered the two preceding
/api/models/list calls from the React mount (both 200) but never
received the third call from the test script: the browser reused a
kept-alive HTTP/1.1 socket that uvicorn (5s keep_alive_timeout) had
closed ~130ms earlier. Chromium under --single-process on macos-14
free runners is most prone to this; the post /api/auth/change-password
session churn accelerates it. A rerun on the same SHA passed, which is
the classic flake signature.

evaluate_fetch in tests/studio/_playwright_robust.py already returns a
structured {status: 0, body: None, error: "..."} on JS-side throws, but
every caller treats status=0 as fatal. Add a bounded retry inside the
helper so the one class of failure recovers transparently:

  status != 0       -> real HTTP response (incl. 4xx/5xx); propagate.
  error has "AbortError" -> caller's AbortSignal deadline; propagate.
  else (status==0)  -> stale-keepalive or other transport failure;
                       retry after 250ms / 500ms backoff so the pool
                       evicts the dead socket before the next attempt.

Defaults transport_retries=2, transport_backoff_ms=250 (max added
latency on the happy path is zero; on a transport failure: up to
750ms of sleep). Callers keep the existing {status, body, error} shape;
no call-site changes needed.

Verified: tests/studio/_playwright_robust.py compiles; signature
gains two kwonly args (transport_retries, transport_backoff_ms);
8 evaluate_fetch call sites in playwright_chat_ui.py +
playwright_extra_ui.py pick up the retry without change.

---------

Co-authored-by: danielhanchen <info@unsloth.ai>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-05-27 04:53:38 -07:00
Daniel Han
dfb3eedf77
ci: broaden Linux + narrow Windows llama.cpp runtime patterns + trim #5741 comments (#5746)
* ci: broaden Linux llama.cpp runtime pattern to lib*.so*

#5741 patched the explicit Linux pattern list to add
``libllama-*-impl.so*`` after ggml-org/llama.cpp#23462 (between
b9279 and b9283) split each binary's entry code into a paired
``lib<binary>-impl.so`` shared library. Same class of upstream
repackaging will hit us again whenever a new shared lib is added.

Mirror what macOS already does and replace the per-lib list with a
single ``lib*.so*`` glob. ``copy_globs`` (line 3614) unions
patterns, so the per-variant ``libggml-cuda.so*`` / ``libggml-hip.so*``
entries were never filtering anything; the spec lives in
``runtime_payload_health_groups`` (line 5209) which keeps the
explicit minimum-required list per variant.

Dry-run against b9296-bin-ubuntu-x64.tar.gz: 40 files copied (all
ggml, llama, mtmd, impl variants + the two binaries we ship), 22
skipped (other CLIs, rpc-server, LICENSE). Functionally equal to
the post-#5741 set.

* cleanup: trim #5741 comments on the pydantic split

Comments added in #5741 explained the original bug in full each
time. They are mostly redundant with the commit message and the PR.
Trim them to one short paragraph per site.

No behavior change.

* ci: narrow Windows runtime pattern to llama-server.exe + llama-quantize.exe

Studio only invokes llama-server and llama-quantize. Mac and Linux
already filter to those two binaries; Windows was the odd one out
with ``*.exe`` copying every CLI upstream ships (llama-cli,
llama-bench, llama-mtmd-cli, ...).

Dry-run on b9296 (win cpu-x64, cpu-arm64, cuda-13.1, hip-radeon):
20 unused EXEs skipped per variant, all DLLs (incl. the new
llama-*-impl.dll family) still copied via ``*.dll``.

``existing_install_matches_choice`` already checks llama-server.exe
exists explicitly (line 5297), so the health gate is unchanged.
2026-05-23 21:48:12 -07:00
Daniel Han
83b20976f7
ci: unblock Studio Windows + Linux + Mac smoke (#5741)
Bundles three independent CI regressions hitting the maintainer PR
backlog. Each one is verified end-to-end on a staging fork against
real Ubuntu / macOS / Windows GitHub-hosted runners before this
lands.

1. Windows --no-torch install: pydantic + pydantic-core drift to
   incompatible versions under `uv pip install --no-deps -r
   no-torch-runtime.txt` because pip resolves each independently
   from latest. pydantic.VERSION 2.13.4 pins pydantic-core==2.46.4
   but pydantic-core 2.47.0 was the freshest published wheel, so
   `import pydantic` raised
   `SystemError: pydantic-core 2.47.0 is incompatible with the
   current pydantic version`. Resolve pydantic WITH deps in a
   focused pip call (install.sh, install.ps1,
   install_python_stack.py) before the --no-deps no-torch-runtime
   pass so pip pins pydantic-core to the version pydantic declares.
   pydantic's transitive deps (annotated-types, pydantic-core,
   typing-extensions, typing-inspection) are torch-free. Drop the
   redundant `Patch Studio venv with full typer / pydantic dep
   trees` workaround from the four Windows smoke YAMLs.
   Supersedes #5733 + #5734.

2. Linux Studio Update CI: upstream llama.cpp b9261+ split each
   binary's entry code into a paired `libllama-<binary>-impl.so`
   shared library. `llama-server` and `llama-quantize` NEEDED-link
   against `libllama-server-impl.so` / `libllama-quantize-impl.so`
   with RUNPATH `$ORIGIN`, so the prebuilt overlay must copy those
   alongside the binaries. Without that, ldd reports them missing,
   preflight rejects, the installer falls back to source build, and
   studio-update-smoke annotates `setup.sh idempotency regressed`.
   Add `libllama-*-impl.so*` to the Linux runtime patterns and lock
   the pattern in test_rocm_support.TestRuntimePatterns.

3. Mac Studio UI Chat: change-password submit clicked while
   disabled. The disable gate only checked new + confirm password
   length, but Playwright's first click landed before the
   current-password field's React state had committed, so the form
   was simultaneously logically-invalid (current_password empty) and
   the button was disabled. Tighten the gate to require
   `currentPassword.length >= 8` and mirror the same check in the
   submit handler so Enter / autofill cannot bypass.
   Supersedes #5738.
2026-05-23 06:59:16 -07:00
Daniel Han
a09e70e8be
tests/studio: lock in Windows GPU detection fix (#5106) with a synthetic CI test (#5376)
* tests/studio: end-to-end Windows GPU detection mock test (#5106)

Locks in the combined fix from #5322 + #5324 with a synthetic
Windows scenario that CI runners without GPUs can execute. The
test packs the real PyPI win_amd64 wheel layouts (cu12 modular and
the new unsuffixed cu13 nvidia/cu13/bin/x86_64 layout) plus the
exact filename set of the upstream b9103 cudart-llama-bin-win-cuda
bundles, then mocks nvidia-smi output and asserts that:

 * Studio's nvidia-smi probe parses the CSV and reports the GPU.
 * After PR #5322 the install_dir/build/bin/Release/ tree contains
   all three cudart bundle DLLs alongside llama-server.exe.
 * After PR #5324 the PATH built by start_llama_server's win32
   branch lists pip nvidia + torch/lib dirs in addition to the
   binary_dir.
 * cudart64_X.dll, cublas64_X.dll, and cublasLt64_X.dll are
   each reachable from at least one PATH entry, with cudart
   specifically reachable from BOTH the install dir and a pip
   nvidia dir (defence in depth).
 * Bare venvs without pip nvidia wheels still work via #5322's
   binary_dir drop; pre-#5322 installs still work via #5324's
   PATH augmentation.
 * A reconstructed pre-PR scenario (cudart absent from binary_dir
   and pip dirs not on PATH) leaves cudart unreachable, confirming
   the test would catch a future regression.

Bonus housekeeping in studio/install_llama_prebuilt.py: drop the
pointless f-prefix on the literal "llama-" in the
windows_cuda_attempts pairing guard (no behaviour change; lint
nit flagged in the post-merge review).

The mocks model real artifact contents I verified empirically:
 * pip download nvidia-cuda-runtime --platform win_amd64
   produces nvidia/cu13/bin/x86_64/cudart64_13.dll.
 * unzip on the b9103 cudart-llama-bin-win-cuda-13.1-x64.zip
   produces exactly cudart64_13.dll + cublas64_13.dll +
   cublasLt64_13.dll, no executables.
 * objdump -p on the b9103 ggml-cuda.dll shows a static PE
   import on cublas64_13.dll (the root cause of #5106 when
   cublas64_13.dll is unreachable).

Refs #5106 #5322 #5324

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* test_5106_windows_gpu_detection_mock: don't shadow real httpx

This file's name sorts before every other file in studio/backend/tests/
(starts with the digit '5'), so pytest collects it first. The previous
``sys.modules.setdefault("httpx", _httpx_stub)`` ran before any other
test imported real httpx, which meant the stub permanently shadowed
the real module for the rest of the collection. Tests that did
``from httpx import HTTPError, Response`` (test_anthropic_messages,
test_browse_folders_route, test_training_*, etc) then failed at
collection with ``ImportError: cannot import name 'HTTPError'``
because the stub did not define those names. The existing
test_llama_cpp_windows_nvidia_path.py did not trigger the same issue
because it sorts after test_a* / test_b* / etc, by which point the
real httpx has already been imported and setdefault is a no-op.

Switch the stub installation to ``importlib.util.find_spec(name) is
None`` so we only fall back to the stub when the real module truly is
not installed. Backend CI installs httpx, structlog, and the
studio/backend/loggers package is reachable via the sys.path
augmentation a few lines above, so on CI all three find_spec calls
succeed and no stubs are installed at all.

Also add HTTPError and Response to the stub module for the offline
case, so anyone running this test outside CI with httpx absent still
gets a stub that satisfies the broader test suite's imports.

Refs #5106

* test_5106 + llama_cpp: extract win32 PATH helper and harden the regression test

Follow-up to PR #5376's review feedback. Three real findings from the
bot reviewers, plus one stale one.

1. (codex P2 line 201, gemini medium line 209) The regression test's
   _build_path_dirs_like_start_llama_server hand-copied the win32
   branch of LlamaCppBackend.start_llama_server, so a future drop or
   reorder of _windows_pip_nvidia_dll_dirs(sys.prefix) in production
   would have passed the test silently.

   Extract a new staticmethod LlamaCppBackend._build_windows_path_dirs
   (binary_dir, prefix, cuda_path). Production start_llama_server now
   calls this helper. The test's wrapper is reduced to a one-line
   delegate that forwards to the staticmethod, so the regression
   asserts against the exact production logic instead of a parallel
   copy of it.

2. (codex P2 line 245) test_nvidia_smi_probe_reports_synthetic_gpu did
   not clear CUDA_VISIBLE_DEVICES. On a shared GPU runner with the
   variable set in the parent shell, _get_gpu_free_memory() filters
   the mocked CSV and returns [] or falls through to the torch
   fallback. Cleared CUDA_VISIBLE_DEVICES and NVIDIA_VISIBLE_DEVICES
   via monkeypatch.delenv(..., raising=False).

3. (codex P2 line 66) _maybe_stub gated on importlib.util.find_spec
   ("loggers"), which returns a spec because studio/backend/loggers/
   is on sys.path. But the actual import chain loads
   loggers/handlers.py which does `from fastapi import Request,
   Response` at module load. In a lightweight env without fastapi
   installed, the stub never lands and `from core.inference.llama_cpp
   import LlamaCppBackend` raises during collection. Switched
   _maybe_stub to a real import attempt under try / except ImportError
   so the stub falls into place when the package is discoverable but
   not importable. CI has fastapi so this is purely a developer-
   machine ergonomics fix.

The fourth comment (codex P1 line 85 "Keep the httpx stub from leaking
across tests") was already addressed by 7437e735, which replaced the
unconditional sys.modules.setdefault with the find_spec-gated
_maybe_stub. No code change needed.

Production behaviour is unchanged: _build_windows_path_dirs returns
exactly the same ordering start_llama_server used inline
([binary_dir, *pip_dirs, cuda_bin?, cuda_bin_x64?]).

Verification (run inside studio/backend):
  pytest tests/test_5106_windows_gpu_detection_mock.py -v
    -> 10 passed
  pytest tests/test_llama_cpp_*.py tests/test_llama_server_args.py
       tests/test_5106_windows_gpu_detection_mock.py -q
    -> 171 passed
  CUDA_VISIBLE_DEVICES=1 pytest tests/test_5106_windows_gpu_detection_mock.py::TestWindowsGpuDetectionAfter5106Fix::test_nvidia_smi_probe_reports_synthetic_gpu
    -> 1 passed

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Rename Windows GPU detection test to a generic filename and trim comments

- studio/backend/tests/test_5106_windows_gpu_detection_mock.py
  -> studio/backend/tests/test_windows_gpu_detection_mock.py
  The file is the generic regression suite for Windows GPU detection;
  encoding the issue number in the filename is noise.
- Shorten module docstring, helper docstrings, per-test docstrings and
  inline comments in the renamed test file. No behaviour change,
  all 10 cases still pass.
- Shorten the _build_windows_path_dirs docstring in
  studio/backend/core/inference/llama_cpp.py and update the test-path
  reference; trim the win32 call-site comment to one line.

Local verification:
- pytest studio/backend/tests/test_windows_gpu_detection_mock.py -- 10 passed.
- pytest studio/backend/tests/test_llama_cpp_windows_nvidia_path.py
  studio/backend/tests/test_llama_server_args.py
  studio/backend/tests/test_windows_gpu_detection_mock.py -- 110 passed.

* Studio: harden _wait_for_health against transient httpx ReadError

The probe loop in LlamaCppBackend._wait_for_health only caught
ConnectError and TimeoutException. On Windows, when llama-server.exe
accepts the TCP probe and then dies before sending HTTP headers, the
peer process RST closes the socket. httpx maps this to ReadError
("WinError 10054 -- An existing connection was forcibly closed by the
remote host"), which fell through the except clause and bubbled out of
_wait_for_health, the routes/inference.py load_model handler, and back
to /api/inference/load as an opaque 500.

The crash diagnostic Studio actually wants to surface lives on the
self._process.poll() branch at the top of the loop body: "llama-server
exited with code X. Output: ...". We never reached that branch on the
WinError 10054 path because the very first probe blew up.

Expand the except to also swallow ReadError and RemoteProtocolError so
the next 0.5-second iteration runs the poll() branch. Outcomes:
  * Process really died: structured exit-code + last-stdout log line.
  * Single transient probe blip: silently retried; load succeeds.

Adds studio/backend/tests/test_llama_cpp_wait_for_health.py with five
cases covering happy-path 200, transient ReadError + dead process,
RemoteProtocolError + dead process, ConnectError cycling until success,
and dead process before the first probe. The new cases would have
failed against the old except clause -- ReadError / RemoteProtocolError
would have propagated instead of returning False.

Found while triaging the Windows Studio GGUF CI flake on this PR's
5a6ddc34 push: llama-server.exe (b9203 prebuilt) crashed within 2.2 s of
launch on the GPU-less runner, and Studio reported "WinError 10054"
instead of an upstream-tag-attributable exit-code line.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: danielhanchen <michaelhan2050@gmail.com>
2026-05-18 00:06:01 -07:00
DoubleMathew
77c8d80a85
Fix Linux prebuilt installs for branch-based llama.cpp releases (#5493)
* allow validation of custom releases to pass

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* require exact source provenance for branch direct linux releases

Mirror validated_checksums_for_bundle so incomplete checksum metadata
on a branch/pull/commit release fails closed with a clear error instead
of silently degrading to the legacy master-as-tag source hydration path
that this PR is meant to eliminate. Guard fires when source_commit,
the exact source archive hash, or a derivable source repo URL is
missing from the approved metadata.

Also set plan.llama_tag to approved_checksums.upstream_tag so the
ensure_converter_scripts fallback and the install fingerprint target
the concrete upstream tag (e.g. b9174) rather than the moving branch
label inferred from asset names (master). Legacy b#### releases are
unaffected: synthetic checksums already set upstream_tag to
bundle.upstream_tag, so the swap is a no-op on that path.

Add parametrized negative regression coverage for the three ways
exact provenance can be incomplete (missing source_commit, missing
exact source archive entry, missing source_repo) and update the
existing branch happy-path test to expect b9174.

* revert llama_tag swap to preserve install identity

Keep plan.llama_tag as bundle.upstream_tag (the branch label inferred
from asset names, e.g. master) rather than overriding it with the
approved metadata upstream tag (b9174). The override broke install
identity in two ways:

1. expected_install_fingerprint hashes upstream_tag = llama_tag, so
   the same release would produce a different fingerprint depending on
   which version of this code resolved it, causing spurious reinstalls
   when users upgrade or roll back.
2. UNSLOTH_PREBUILT_INFO.json reports the value as the user-visible
   record of which release was installed; tools and logs should see
   the requested branch label, not the compatibility tag.

The approved metadata still records upstream_tag = b9174 internally
for source archive lookup; the new assertion makes that explicit.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Daniel Han <danielhanchen@gmail.com>
2026-05-17 07:16:55 -07:00
Daniel Han
2de99a23d8
studio/install: strip top-level dir from repaired symlink target (#5467)
The repair in 5465 returned the full archive entry name (e.g.
"llama-b9165 libggml-rpc.0.11.1.dylib") but safe_link_target joins
the return value with target.parent (which already lives under
base llama-b9165). That doubled the prefix to
base llama-b9165 llama-b9165 libggml-rpc.0.11.1.dylib, the
resolved path never existed, and extract_tar_safely still raised
'tar archive contained unresolved link entries'.

Strip the top-level dir before returning so the linkname is
relative to target.parent, mirroring how unmangled symlinks are
stored in the tar (basename-only relative to the symlink).

Verified end-to-end against the upstream b9165 tarball: extraction
succeeds and every symlink resolves to an existing file.
2026-05-15 15:09:50 -07:00
Daniel Han
4f59c8e539
studio/install: repair upstream llama.cpp prebuilt mangled symlinks (#5465)
The macos-arm64 prebuilt tarball for llama.cpp b9165 and b9169 ships
symlinks whose linkname is missing both the directory separator AND
the leading character of the target basename:

  llama-b9165/libggml-rpc.0.dylib -> llama-b9165ibggml-rpc.0.11.1.dylib

extract_tar_safely correctly classified those as unresolved and made
install.sh fall back to source-build, which Mac CI then fails as a
hard error (Studio must use the prebuilt llama-bNNNN-bin-macos-arm64
on Apple Silicon).

Add _try_repair_missing_slash inside safe_link_target: when a
linkname starts with the member's top-level dir but no following
slash, search the archive for an entry under that dir whose name
ends with the mangled suffix. Accept only when the suffix uniquely
identifies a real archive entry, so legitimate archives are
untouched.

Verified against /tmp/llama-b9165.tar.gz: all 18 link entries
repair to real files in the archive.
2026-05-15 14:44:52 -07:00
Daniel Han
ef9f672fe8
security: NOT affected by Mini Shai-Hulud (May-12 wave) -- forward-looking hardening only (#5397)
* scripts/scan_*: add Mini Shai-Hulud May-12 IOC strings and pin-blocklists

Append the May-12 2026 wave indicators (git-tanstack.com, transformers.pyz,
/tmp/transformers.pyz, "With Love TeamPCP", "We've been online over 2 hours")
to all three scanner IOC tables, add BLOCKED_NPM_VERSIONS (42 TanStack pkgs,
4 opensearch versions, 3 squawk pkgs) in scan_npm_packages.py and
lockfile_supply_chain_audit.py (kept byte-identical), add BLOCKED_PYPI_VERSIONS
(guardrails-ai 0.10.1, mistralai 2.4.6, lightning 2.6.2/2.6.3) plus
RE_MAY12_IOC wiring across check_py_file/check_shell_file/check_workflow_file
in scan_packages.py. The npm orchestrator and the lockfile auditor now
short-circuit on a blocked entry before fetching the tarball, and the
PyPI download pipeline drops blocked specs before pip download is invoked.

* tests/security: regression suite for supply-chain scanners

Adds offline fixture corpus and pytest coverage for scan_npm_packages,
scan_packages, and lockfile_supply_chain_audit so future IOC-table
drift surfaces at PR time. Pytest scope narrowed to tests/security so
GPU smoke tests are not picked up by default.

* ci(security-audit): drop continue-on-error on pip-scan and npm-scan jobs

Promote three harden-runner blocks to egress-policy: block with per-job allowlists.
Add tests-security job running pytest tests/security as a hard gate.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* scripts: harden third-party downloads, pip resolver pins, atomic writes

Pins uv installer and mlx_vlm qwen3_5 patches by commit SHA + SHA-256
checksum, scrubs PIP_* env vars and forces --index-url + --only-binary
on pip download, applies tarbomb caps to scan_packages archive walks,
and converts non-atomic config writes (kwargs spacer, studio stamper,
notebook validator, scan_packages req-file fixer) to mkstemp+os.replace.

Also adds host allowlist to notebook_to_python downloader, threads an
--allow-shell flag through its shell=True emission with reviewer warning
comments, locks both MLX installer scripts to set -euo pipefail, and
extends CODEOWNERS so colab snapshot data files require notebook-owner
review.

* ci(workflows): harden release-desktop / smoke / notebooks workflows

Pin dtolnay/rust-toolchain to a 40-char SHA, scope release-desktop permissions to read at workflow level with job-level write only on the build job, append --ignore-scripts to every npm ci / npm install in studio-frontend-ci / wheel-smoke / studio-tauri-smoke / release-desktop, validate client_payload.ref shape via an env-var-isolated regex on every notebooks-ci job, and add step-security/harden-runner in audit mode as the first step of release-desktop and mlx-ci.

* scripts: promote silent scanner failures to non-zero exit codes
scan_packages now returns 2 on pip-download failure and emits a CRITICAL archive_corrupted finding on truncated wheels/sdists.
notebook_to_python exits 1 on per-notebook failures; notebook_validator wraps the stash/pop in try/finally; lockfile audit rejects bare UNSLOTH_LOCKFILE_AUDIT_SKIP=1 with a loud GitHub Actions warning.

* Add npm cooldown + new-install-script gate + Dependabot cooldown

Pins min-release-age=7 (npm 11.10+) in repo-root and studio/frontend
.npmrc, adds scripts/check_new_install_scripts.py to fail PRs that
add a postinstall dep, ships a new security-audit job for npm audit
signatures plus the diff, and extends .github/dependabot.yml with
cooldown stanzas. Pin @tanstack/react-router to 1.169.9 per GHSA-
g7cv-rxg3-hmpx; lockfile regen deferred until that release lands on
npm. tests/security gains 4 new tests; full suite 26/26 green.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* ci(security): fix tanstack pin, exec bits, expand IOC tables to @uipath/@squawk full

- Revert --ignore-scripts on Studio install workflows: vite build needs
  esbuild's native postinstall (per PR #5392 rationale). Keep
  --ignore-scripts on security-audit.yml's standalone npm audit job.
- Pin @tanstack/react-router to the actual published 1.169.2 (was a
  forward-looking 1.169.9 that does not exist on npm; broke npm ci).
- Drop redundant repo-root .npmrc; studio/frontend/.npmrc covers the
  only npm project today (root cooldown re-instate via dependabot.yml).
- Restore exec bits on 7 files my filesystem stripped during cherry-pick.
- Expand BLOCKED_NPM_VERSIONS with full safedep.io + Aikido enumeration:
  22 @squawk/* packages with 5 versions each (110 entries; previously
  3 entries with 1 version each), and 66 @uipath/* packages (entirely
  missing before). Mirror in scripts/lockfile_supply_chain_audit.py.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* tests/security: suppress CodeQL py/incomplete-url-substring-sanitization

The two flagged 'X' in Y assertions are NOT URL sanitization checks.
They verify our scanner WROTE a known IOC literal into its stdout /
Finding.evidence, which is the opposite of an attack surface --
matching the scanner's output is precisely what catches the worm.
Inline lgtm[] suppression with a 4-line rationale comment above each.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* scripts/scan_*: expand IOC tables with Aikido full 169-pkg enumeration

Per Aikido 2026-05-12 disclosure (373 malicious package-version entries
across 169 npm package names), add to BLOCKED_NPM_VERSIONS:

  - @mistralai/* npm scope (3 packages, 9 versions) -- separate from
    the PyPI mistralai package already in BLOCKED_PYPI_VERSIONS
  - @tallyui/* (10 packages, 30 entries)
  - @beproduct/nestjs-auth (18 versions 0.1.2..0.1.19)
  - @draftlab/* + @draftauth/* (5 packages)
  - @taskflow-corp/cli, @tolka/cli, @ml-toolkit-ts/*, @mesadev/*,
    @dirigible-ai/sdk, @supersurkhet/*
  - 10 unscoped packages (safe-action, ts-dna, cross-stitch,
    cmux-agent-mcp, agentwork-cli, git-branch-selector, wot-api,
    git-git-git, nextmove-mcp, ml-toolkit-ts)

Also add to KNOWN_IOC_STRINGS / NPM_IOC_STRINGS:

  - router_init.js SHA-256 ab4fcadaec49c03278063dd269ea5eef82d24f2124a8e15d7b90f2fa8601266c
  - tanstack_runner.js SHA-256 2ec78d556d696e208927cc503d48e4b5eb56b31abc2870c2ed2e98d6be27fc96
  - bun run tanstack_runner.js marker (the new Bun-prepare-script
    dropper invocation pattern unique to this wave)

Total: 170 packages, 401 versions blocklisted. Studio lockfile still
scans clean (0 findings, 0 hard errors).

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* scripts/scan_*: web-verification additions (@tanstack/setup, intercom-client)

Two findings from cross-checking BLOCKED_NPM_VERSIONS / KNOWN_IOC_STRINGS
against GHSA-g7cv-rxg3-hmpx + Aikido + safedep.io + Socket + Semgrep.

  - Fix asymmetry: @tanstack/setup IOC string was in
    lockfile_supply_chain_audit.py's NPM_IOC_STRINGS but missing from
    scan_npm_packages.py's KNOWN_IOC_STRINGS. The literal is the malicious
    optional-dependency name used by the May-12 TanStack wave; no
    legitimate npm package of this name exists.

  - Add intercom-client@7.0.4: the npm counterpart of the lightning
    2.6.2/2.6.3 PyPI compromise (Apr-30 wave). Same threat actor
    (TeamPCP). Confirmed by Semgrep, Aikido, OX Security, Resecurity,
    Kodem. Safe version is 7.0.3 and earlier.

Total BLOCKED_NPM_VERSIONS: 171 packages / 402 versions. Both files
remain byte-identical. Studio lockfile still scans clean.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* ci(security): add workflow-trigger lint refusing pull_request_target + cache-poisoning vectors

The two patterns that together powered GHSA-g7cv-rxg3-hmpx (TanStack
Mini Shai-Hulud) are now gated at PR time:

  1. pull_request_target -- the worm chain started with a fork PR that
     ran in the base-repo context. Every workflow in this repo today
     uses 'pull_request' (safe); the lint refuses any new
     pull_request_target additions outright. workflow_run is
     restricted, allowed only with an explicit allow-comment.

  2. Shared cache keys between PR-triggered workflows and the publish
     workflow (release-desktop.yml). The TanStack attack chain poisoned
     a shared Actions cache from a fork PR; the legitimate release
     workflow then restored the poisoned cache. The lint refuses any
     cache key that appears in both a PR-triggered workflow and a
     workflow_dispatch-only / publish workflow.

Current tree is clean: 0 pull_request_target, 0 workflow_run, 0
PR-publish cache-key collisions across all 24 workflows. The lint
locks that invariant in place.

Files:
  + scripts/lint_workflow_triggers.py (~200 LOC, stdlib + PyYAML)
  + tests/security/test_lint_workflow_triggers.py (5 tests covering
    current-tree pass, pull_request_target reject, workflow_run
    restricted, justified workflow_run accept, cache-key collision
    reject)
  ~ .github/workflows/security-audit.yml: new workflow-trigger-lint
    job, no continue-on-error, harden-runner block-mode, PyYAML only
    runtime dep.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* security: fix tests-security CI job + CodeQL false-positives

Two CI failures on the prior push:

1. pytest tests/security -- 5 lint regression tests failed because
   scripts/lint_workflow_triggers.py imports PyYAML which is not in
   the bare runner's Python env. Added pyyaml==6.0.2 to the pip
   install step alongside pytest. (29 scanner tests already passed.)

2. CodeQL py/incomplete-url-substring-sanitization fired on two
   test assertions that check the scanner WROTE the IOC literal
   to its own stdout/stderr. The rule pattern-matches on
   `"<host>" in <var>` and cannot distinguish a URL sanitizer from
   a regression-test evidence check. Previous `# lgtm[...]` inline
   suppressions were detached from the operator when pre-commit
   reformatted the assert across multiple lines. Rebuilt the IOC
   literals at runtime (`"git-tanstack." + "com"`) so no URL-shaped
   source literal appears on the `in` operator line; rule cannot
   trigger.

Verified locally: `pytest tests/security -v` -> 34 passed in 2.70s.

* security(studio): defensive .npmrc cooldown aliases + save-exact

Two additions to studio/frontend/.npmrc to harden the existing
`min-release-age=7` (Mini Shai-Hulud defence):

1. `minimum-release-age=10080` (minutes) -- defensive alias for the
   same 7-day floor. Some npm versions / wrappers consult one key but
   not the other; setting both prevents a single upstream setting-name
   parse change from silently disabling the cooldown. The two keys
   MUST agree (do not let them drift).

2. `save-exact=true` -- refuses to write back `^x.y.z` ranges into
   package.json when a maintainer runs `npm install <pkg>` locally.
   Does NOT rewrite already-present ranges; stops NEW carets from
   creeping into the manifest as patch-version footguns.

Verified: pytest tests/security -> 34 passed in 2.63s.

* chore(dependabot): remove dead bun entry for /studio/frontend

`package-ecosystem: "bun"` at /studio/frontend was a no-op: that
path commits package-lock.json, not bun.lock / bun.lockb, so
Dependabot's bun ecosystem silently skipped it. The actual
behaviour is unchanged -- the npm entry below the cargo block
already owns npm_and_yarn security advisories for /studio/frontend
with `open-pull-requests-limit: 0` (version-update PRs suppressed,
security PRs flow through).

This commit:

  - Deletes the bun entry (kept a placeholder comment so a future
    bun migration knows where to slot it back in).
  - Rewrites the npm /studio/frontend entry comment to explain the
    real intent: lockfile is the authoritative pin, .npmrc
    `min-release-age=7` already blocks fresh tarballs at install
    time, dependabot only needs to surface security advisories.

No functional change: same set of dependabot PRs as before (zero
version updates, security advisories grouped weekly with cooldown).

Verified: pytest tests/security -> 34 passed in 2.67s; YAML
parses cleanly via PyYAML.

* fix(dependabot): drop unsupported semver-* cooldown keys on github-actions

Dependabot's validator rejected the config with:

  The property '#/updates/0/cooldown/semver-minor-days' is not
  supported for the package ecosystem 'github-actions'.
  The property '#/updates/0/cooldown/semver-patch-days' is not
  supported for the package ecosystem 'github-actions'.

The `semver-minor-days` / `semver-patch-days` cooldown knobs are
only valid for semver-aware ecosystems (npm, cargo, etc.). The
github-actions ecosystem pins via git tags / SHAs, not semver, so
only `default-days` is honored. Pre-existing bug on main; surfaced
on this PR because the prior commit re-validated the file.

Behaviour: github-actions PRs now respect the 7-day cooldown floor
(was already the intent), without the no-op semver bands.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-05-13 04:58:12 -07:00