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gh-149728: Fix free-threaded race in importlib lazy-submodule fast path #208564

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gh-149728: Fix free-threaded race in importlib lazy-submodule fast path

gh-149728: Fix free-threaded race in importlib lazy-submodule fast path #208564

Triggered via pull request September 7, 2026 14:33
@SwayamInSyncSwayamInSync
synchronize #149729
SwayamInSync:fix-lazyimport-freethreading-race
Status Failure
Total duration 34m 53s
Artifacts 2

build.yml

on: pull_request
Change detection  /  Create context from changed files
13s
Change detection / Create context from changed files
Matrix: Address sanitizer
Matrix: build-macos
Matrix: build-san
Matrix: Ubuntu SSL tests
Matrix: build-ubuntu
Matrix: build-windows
Matrix: cifuzz
Waiting for pending jobs
Docs  /  Doctest
7m 30s
Docs / Doctest
Docs  /  Check EPUB
2m 18s
Docs / Check EPUB
Check if Autoconf files are up to date
33s
Check if Autoconf files are up to date
Check if generated files are up to date
4m 37s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
10s
C API Docs / Check if all C APIs are documented
Ubuntu (installed)  /  build, install and test
6m 24s
Ubuntu (installed) / build, install and test
iOS
24m 11s
iOS
Emscripten  /  build and test
18m 34s
Emscripten / build and test
WASI  /  build and test
4m 51s
WASI / build and test
Hypothesis tests on Ubuntu
8m 26s
Hypothesis tests on Ubuntu
Cross build Linux
5m 9s
Cross build Linux
Docs  /  Docs
2m 26s
Docs / Docs
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
2m 9s
Docs / Check for removed HTML IDs / Check for removed HTML IDs
All required checks pass
3s
All required checks pass
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Annotations

3 errors, 4 warnings, and 2 notices
Docs / Check EPUB
Process completed with exit code 1.
Docs / Docs
Process completed with exit code 2.
Android (x86_64)
Process completed with exit code 1.
Hypothesis tests on Ubuntu
No files were found with the provided path: /home/runner/work/cpython/cpython-builddir/.hypothesis/examples/. No artifacts will be uploaded.
macOS / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS (free-threading) / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26-intel)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
Windows / Build and test (arm64, switch-case)
"The windows-11-arm label will migrate to use Visual Studio 2026 by default beginning September 21, 2026. For more information see https://github.com/actions/runner-images/issues/14602"
Windows (free-threading) / Build and test (arm64, switch-case)
"The windows-11-arm label will migrate to use Visual Studio 2026 by default beginning September 21, 2026. For more information see https://github.com/actions/runner-images/issues/14602"

Artifacts

Produced during runtime
Name Size Digest
UBSan-logs-default
1.6 KB
sha256:d25ed04aa4a5c0e311cc331d29f49c4dc3fe9987e32bc615d82cdd2cf1766871
html-ids-head.json.gz
126 KB
sha256:d5aeb91ae5438e55459e2fb4d48779305e265e66a7b7d857a5e99a3f2ec36d4a