[issue30038] Race condition in how trip_signal writes to wakeup fd

[STINNER Victor]

STINNER Victor added the comment:

Ned Deily and Yury Selivanov are in favor of a backport, thank you for looking at this one guys. So I created the PR 2075. I will merge it once the CI pass.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30038>
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