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[3.15] gh-155888: Fix asyncio writelines() hanging on an empty chunk (GH-155889) #206110

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[3.15] gh-155888: Fix asyncio writelines() hanging on an empty chunk (GH-155889)

[3.15] gh-155888: Fix asyncio writelines() hanging on an empty chunk (GH-155889) #206110

Triggered via pull request August 16, 2026 17:17
@miss-islingtonmiss-islington
opened #155904
miss-islington:backport-b2c2993-3.15
Status Success
Total duration 31m 0s
Artifacts 2

build.yml

on: pull_request
Change detection  /  Create context from changed files
17s
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 34s
Docs / Doctest
Docs  /  Check EPUB
2m 25s
Docs / Check EPUB
Check if Autoconf files are up to date
35s
Check if Autoconf files are up to date
Check if generated files are up to date
3m 40s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
11s
C API Docs / Check if all C APIs are documented
Ubuntu (installed)  /  build, install and test
5m 54s
Ubuntu (installed) / build, install and test
iOS
18m 33s
iOS
Emscripten  /  build and test
17m 55s
Emscripten / build and test
WASI  /  build and test
5m 27s
WASI / build and test
Hypothesis tests on Ubuntu
9m 32s
Hypothesis tests on Ubuntu
Cross build Linux
4m 44s
Cross build Linux
Docs  /  Docs
1m 51s
Docs / Docs
Check if the ABI has changed
1m 50s
Check if the ABI has changed
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
1m 56s
Docs / Check for removed HTML IDs / Check for removed HTML IDs
All required checks pass
2s
All required checks pass
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Annotations

2 errors and 7 warnings
Docs / Docs
Process completed with exit code 2.
Docs / Check EPUB
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)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26)
The following taps are not trusted: aws/tap Homebrew is currently ignoring formulae, casks and commands from these taps because tap trust is required. Untap them with: brew untap aws/tap Trust specific formulae, casks and commands with: brew trust --formula <user>/<tap>/<formula> brew trust --cask <user>/<tap>/<cask> brew trust --command <user>/<tap>/<command> Whole-tap trust is broader and includes all current and future formulae, casks and commands from the listed taps. Trust whole taps with: brew trust aws/tap To disable trust checks: export HOMEBREW_NO_REQUIRE_TAP_TRUST=1 This is not recommended and will be removed in a later release. For more information, see: https://docs.brew.sh/Tap-Trust
macOS (free-threading) / build and test (macos-26)
`$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
UBSan-logs-default
1.61 KB
sha256:c203b6280e1b27f32a4a0bb5b8f3f9d62e028cebe14c9c71552eb472d1914219
html-ids-head.json.gz
124 KB
sha256:482d2aff3f6ce353d1408d681d39b69b0b66d4413fbbf3042e2370c6de7ff574