[3.14] gh-135871: Fix needless spinning in _PyMutex_LockTimed with zero timeout (gh-135872)#135946
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colesbury merged 1 commit intoJun 25, 2025
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[3.14] gh-135871: Fix needless spinning in _PyMutex_LockTimed with zero timeout (gh-135872)#135946colesbury merged 1 commit intopython:3.14python/cpython:3.14from miss-islington:backport-cbfaf41-3.14miss-islington/cpython:backport-cbfaf41-3.14Copy head branch name to clipboard
_PyMutex_LockTimed with zero timeout (gh-135872)#135946colesbury merged 1 commit into
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…ongh-135872) The free threading build could spin unnecessarily on `_Py_yield()` if the initial compare and swap failed. (cherry picked from commit cbfaf41) Co-authored-by: Joseph Tibbertsma <josephtibbertsma@gmail.com>
_PyMutex_LockTimed with zero timeout (gh-135872)_PyMutex_LockTimed with zero timeout (gh-135872)
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The free threading build could spin unnecessarily on
_Py_yield()if the initialcompare and swap failed.
(cherry picked from commit cbfaf41)
Co-authored-by: Joseph Tibbertsma josephtibbertsma@gmail.com
_PyMutex_LockTimedspins and may fail unnecessarily in no-GIL builds #135871