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gh-130396: Fix thread sanitizer crashes on stack overflow tests #130966

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Merged
merged 1 commit into from
Mar 11, 2025
Merged

gh-130396: Fix thread sanitizer crashes on stack overflow tests #130966

merged 1 commit into from
Mar 11, 2025

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colesbury
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@colesbury colesbury commented Mar 7, 2025 •
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Thread sanitizer will often crash if a test uses more than half the stack.

@colesbury
pythongh-130396: Fix thread sanitizer crashes on stack overflow tests
5dadae5 
Thread sanitizer will often crash if a test uses more than half the
stack.
@colesbury colesbury requested a review from mpage March 7, 2025 21:53
@colesbury colesbury requested a review from markshannon as a code owner March 7, 2025 21:53
@bedevere-app bedevere-app bot mentioned this pull request Mar 7, 2025
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For example the following previously crashed with SIGBUS on exit, but works with the PR:

./python -m test -u cpu test_descr -m test_wrapper_segfault -v

I tested with reduce stack sizes as well (ulimit -s 4096 and ulimit -s 2048).

mpage
mpage approved these changes Mar 10, 2025
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LGTM

@colesbury colesbury merged commit 4162bc1 into python:main Mar 11, 2025
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@colesbury colesbury deleted the gh-130396-tsan-crash branch March 11, 2025 14:33
seehwan pushed a commit to seehwan/cpython that referenced this pull request Apr 16, 2025
@colesbury @seehwan80
pythongh-130396: Fix thread sanitizer crashes on stack overflow tests (…
650064f 
…pythongh-130966)

Thread sanitizer will often crash if a test uses more than half the
stack.
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@mpage mpage mpage approved these changes

@markshannon markshannon Awaiting requested review from markshannon markshannon is a code owner

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