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gh-154570: Fix itertools.accumulate() silently corrupting its total on reentrancy #203358

gh-154570: Fix itertools.accumulate() silently corrupting its total on reentrancy

gh-154570: Fix itertools.accumulate() silently corrupting its total on reentrancy #203358

Triggered via pull request July 24, 2026 16:15
Status Cancelled
Total duration 19m 38s
Artifacts 2

build.yml

on: pull_request
Change detection  /  Create context from changed files
14s
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
Docs  /  Doctest
7m 51s
Docs / Doctest
Docs  /  Check EPUB
39s
Docs / Check EPUB
Check if Autoconf files are up to date
29s
Check if Autoconf files are up to date
Check if generated files are up to date
4m 10s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
13s
C API Docs / Check if all C APIs are documented
iOS
19m 4s
iOS
Emscripten  /  build and test
13m 22s
Emscripten / build and test
WASI  /  build and test
5m 32s
WASI / build and test
Hypothesis tests on Ubuntu
9m 53s
Hypothesis tests on Ubuntu
Cross build Linux
4m 23s
Cross build Linux
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
2m 28s
Docs / Check for removed HTML IDs / Check for removed HTML IDs
All required checks pass
5s
All required checks pass
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35 errors and 7 warnings
Docs / Check EPUB
Process completed with exit code 2.
Android (aarch64)
Process completed with exit code 1.
Docs / Docs
Process completed with exit code 2.
Android (x86_64)
Process completed with exit code 1.
CIFuzz / cpython3 (address)
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
CIFuzz / cpython3 (address)
Path does not exist: cifuzz-sarif/results.sarif
CIFuzz / cpython3 (address)
The operation was canceled.
Windows / Build and test (x64, switch-case)
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
Windows / Build and test (x64, switch-case)
The operation was canceled.
CIFuzz / cpython3 (undefined)
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
CIFuzz / cpython3 (undefined)
Path does not exist: cifuzz-sarif/results.sarif
CIFuzz / cpython3 (undefined)
The operation was canceled.
Windows (free-threading) / Build and test (x64, switch-case)
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
Windows (free-threading) / Build and test (x64, switch-case)
The operation was canceled.
Windows / Build and test (arm64, switch-case)
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
Windows / Build and test (arm64, switch-case)
The operation was canceled.
Windows (free-threading) / Build and test (arm64, switch-case)
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
Windows (free-threading) / Build and test (arm64, switch-case)
The operation was canceled.
Sanitizers / TSan (free-threading)
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
Sanitizers / TSan (free-threading)
The operation was canceled.
Sanitizers / UBSan
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
Sanitizers / UBSan
The operation was canceled.
iOS
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
iOS
The operation was canceled.
Tests
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
Tests
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
Tests
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
Tests
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
Tests
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
Tests
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
All required checks pass
Process completed with exit code 1.
Tests
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
Tests
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
Tests
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
Tests
Canceling since a higher priority waiting request for Tests-PhysicistJohn-gh-154570-accumulate-reentrancy-fix exists
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)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26)
The following taps are not trusted: aws/tap Homebrew is currently ignoring formulae, casks and commands from these taps because tap trust is required. Untap them with: brew untap aws/tap Trust specific formulae, casks and commands with: brew trust --formula <user>/<tap>/<formula> brew trust --cask <user>/<tap>/<cask> brew trust --command <user>/<tap>/<command> Whole-tap trust is broader and includes all current and future formulae, casks and commands from the listed taps. Trust whole taps with: brew trust aws/tap To disable trust checks: export HOMEBREW_NO_REQUIRE_TAP_TRUST=1 This is not recommended and will be removed in a later release. For more information, see: https://docs.brew.sh/Tap-Trust
macOS / build and test (macos-26-intel)
`$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
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

Artifacts

Produced during runtime
Name Size Digest
UBSan-logs-default
363 Bytes
sha256:14c593051ff3e5f4dc040d283525b2e342ed2388f8ccdfdb9028bbf3b81b4275
html-ids-head.json.gz
125 KB
sha256:6f675d9d905bb8969c954f99fe02f9cf48bdf4c28274b0b53140b60ac4c73ac7