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[3.15] gh-155400: Fix deadlock with type_lock_prevent_release() (GH-155401) #205940

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[3.15] gh-155400: Fix deadlock with type_lock_prevent_release() (GH-155401)

[3.15] gh-155400: Fix deadlock with type_lock_prevent_release() (GH-155401) #205940

Triggered via pull request August 15, 2026 05:25
@miss-islingtonmiss-islington
opened #155822
miss-islington:backport-50fcb91-3.15
Status Failure
Total duration 33m 38s
Artifacts 3

build.yml

on: pull_request
Change detection  /  Create context from changed files
18s
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
7m 52s
Docs / Doctest
Docs  /  Check EPUB
2m 22s
Docs / Check EPUB
Check if Autoconf files are up to date
26s
Check if Autoconf files are up to date
Check if generated files are up to date
4m 14s
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 10s
Ubuntu (installed) / build, install and test
iOS
21m 23s
iOS
Emscripten  /  build and test
19m 22s
Emscripten / build and test
WASI  /  build and test
5m 30s
WASI / build and test
Hypothesis tests on Ubuntu
9m 54s
Hypothesis tests on Ubuntu
Cross build Linux
4m 42s
Cross build Linux
Docs  /  Docs
2m 35s
Docs / Docs
Check if the ABI has changed
2m 8s
Check if the ABI has changed
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
2m 31s
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

4 errors and 7 warnings
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 2.
All required checks pass
Process completed with exit code 1.
macOS / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26)
The following taps are not trusted: aws/tap Homebrew is currently ignoring formulae, casks and commands from these taps because tap trust is required. Untap them with: brew untap aws/tap Trust specific formulae, casks and commands with: brew trust --formula <user>/<tap>/<formula> brew trust --cask <user>/<tap>/<cask> brew trust --command <user>/<tap>/<command> Whole-tap trust is broader and includes all current and future formulae, casks and commands from the listed taps. Trust whole taps with: brew trust aws/tap To disable trust checks: export HOMEBREW_NO_REQUIRE_TAP_TRUST=1 This is not recommended and will be removed in a later release. For more information, see: https://docs.brew.sh/Tap-Trust
Hypothesis tests on Ubuntu
No files were found with the provided path: /home/runner/work/cpython/cpython-builddir/.hypothesis/examples/. No artifacts will be uploaded.
macOS (free-threading) / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS (free-threading) / build and test (macos-26)
The following taps are not trusted: aws/tap Homebrew is currently ignoring formulae, casks and commands from these taps because tap trust is required. Untap them with: brew untap aws/tap Trust specific formulae, casks and commands with: brew trust --formula <user>/<tap>/<formula> brew trust --cask <user>/<tap>/<cask> brew trust --command <user>/<tap>/<command> Whole-tap trust is broader and includes all current and future formulae, casks and commands from the listed taps. Trust whole taps with: brew trust aws/tap To disable trust checks: export HOMEBREW_NO_REQUIRE_TAP_TRUST=1 This is not recommended and will be removed in a later release. For more information, see: https://docs.brew.sh/Tap-Trust
macOS / build and test (macos-26-intel)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26-intel)
The following taps are not trusted: aws/tap Homebrew is currently ignoring formulae, casks and commands from these taps because tap trust is required. Untap them with: brew untap aws/tap Trust specific formulae, casks and commands with: brew trust --formula <user>/<tap>/<formula> brew trust --cask <user>/<tap>/<cask> brew trust --command <user>/<tap>/<command> Whole-tap trust is broader and includes all current and future formulae, casks and commands from the listed taps. Trust whole taps with: brew trust aws/tap To disable trust checks: export HOMEBREW_NO_REQUIRE_TAP_TRUST=1 This is not recommended and will be removed in a later release. For more information, see: https://docs.brew.sh/Tap-Trust

Artifacts

Produced during runtime
Name Size Digest
TSan-logs-free-threading
80.9 KB
sha256:10005d005a85cb7f57960307c326fcb58fa1a76d656d5c0c423e98035e435b18
UBSan-logs-default
1.61 KB
sha256:286f85ef93cac3714ca15b714ad63e602a0af32de1bd286c67ba131c968cf688
html-ids-head.json.gz
124 KB
sha256:b49cead5245b211e312540e3c85c8ef0b6a23909c1df34bbda4ee56ab805d899