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[3.15] gh-149816: Fix race in subtype_getweakref in free-threading build (gh-150247) #213538

[3.15] gh-149816: Fix race in subtype_getweakref in free-threading build (gh-150247)

[3.15] gh-149816: Fix race in subtype_getweakref in free-threading build (gh-150247) #213538

Triggered via pull request October 13, 2026 17:17
Status Failure
Total duration 1h 0m 56s
Artifacts 3

build.yml

on: pull_request
Change detection  /  Create context from changed files
24s
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-msi
Waiting for pending jobs
Matrix: build-windows
Matrix: cifuzz
Waiting for pending jobs
Docs  /  Doctest
6m 35s
Docs / Doctest
Docs  /  Check EPUB
2m 5s
Docs / Check EPUB
Check if Autoconf files are up to date
27s
Check if Autoconf files are up to date
Check if generated files are up to date
3m 10s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
12s
C API Docs / Check if all C APIs are documented
Ubuntu (installed)  /  build, install and test
4m 54s
Ubuntu (installed) / build, install and test
iOS
27m 6s
iOS
Emscripten  /  build and test
19m 2s
Emscripten / build and test
WASI  /  build and test
5m 5s
WASI / build and test
Hypothesis tests on Ubuntu
9m 49s
Hypothesis tests on Ubuntu
Cross build Linux
3m 59s
Cross build Linux
Check if the ABI has changed
1m 53s
Check if the ABI has changed
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
1m 31s
Docs / Check for removed HTML IDs / Check for removed HTML IDs
All required checks pass
4s
All required checks pass
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Annotations

10 errors, 4 warnings, and 10 notices
Docs / Check EPUB
Process completed with exit code 1.
Docs / Docs
Process completed with exit code 2.
Sanitizers / TSan (free-threading)
Process completed with exit code 134.
Ubuntu (free-threading) / build and test (ubuntu-26.04-arm)
Process completed with exit code 2.
macOS (free-threading) / build and test (macos-26)
Process completed with exit code 2.
Ubuntu (free-threading) / build and test (ubuntu-26.04)
Process completed with exit code 2.
Windows (free-threading) / Build and test (arm64, switch-case)
Process completed with exit code 1.
Windows (free-threading) / Build and test (x64, switch-case)
The job has exceeded the maximum execution time of 1h0m0s
Windows (free-threading) / Build and test (x64, switch-case)
The operation was canceled.
All required checks pass
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 (free-threading) / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26)
`$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!
Change detection / Create context from changed files
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
C API Docs / Check if all C APIs are documented
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
Docs / Check EPUB
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
Docs / Docs
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
Docs / Check for removed HTML IDs / Check for removed HTML IDs
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
Android (aarch64)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
macOS (free-threading) / build and test (macos-26)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
macOS / build and test (macos-26)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
iOS
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
All required checks pass
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"

Artifacts

Produced during runtime
Name Size Digest
MSan-logs-default
209 Bytes
sha256:f13c7454b0078c2c4ef479eccbaf182e3131c2488c7b1b7e5a9335fab03cbc8e
UBSan-logs-default
1.54 KB
sha256:88873daf3d3a8718760773be7b39cf09820164074b61fa2b314e4fa80ed29f5f
html-ids-head.json.gz
128 KB
sha256:9e268316456820c5f9bce7114108899eb311b9b4f1fad11af7da4ba2198f3cca