gh-140734: fix off-by-one error when comparing to `_SUN_PATH_MAX` by picnixz · Pull Request #140903 · python/cpython · GitHub

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picnixz:fix/multiprocessing/sun-path-max-140734

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Off-by-one error in Lib/multiprocessing/util.py _SUN_PATH_MAX calculation causes forkserver OSError: AF_UNIX path too long #140734

fix off-by-one error when comparing to _SUN_PATH_MAX

awaiting core review

needs backport to 3.13

needs backport to 3.14

View reviewed changes

Merge branch 'main' into fix/multiprocessing/sun-path-max-140734

: fix off-by-one error when comparing to `_SUN_PATH_MA…

bedevere-app Bot commented Nov 7, 2025

GH-141181 is a backport of this pull request to the 3.14 branch.

: fix off-by-one error when comparing to `_SUN_PATH_MA…

: fix off-by-one error when comparing to `_SUN_PATH_M…

: fix off-by-one error when comparing to `_SUN_PATH_M…

: fix off-by-one error when comparing to `_SUN_PATH_MA…