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bpo-45274: Fix Thread._wait_for_tstate_lock() race condition (GH-28532)

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Fix a race condition in the Thread.join() method of the threading
module. If the function is interrupted by a signal and the signal
handler raises an exception, make sure that the thread remains in a
consistent state to prevent a deadlock.
(cherry picked from commit a22be4943c)

Co-authored-by: Victor Stinner <vstinner@python.org>
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Miss Islington (bot) 2021-09-27 05:49:30 -07:00 • committed by GitHub
parent 08e387ab82
commit 1ecb641b88
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2 changed files with 22 additions and 4 deletions
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Fix a race condition in the :meth:`Thread.join() <threading.Thread.join>`
method of the :mod:`threading` module. If the function is interrupted by a
signal and the signal handler raises an exception, make sure that the thread
remains in a consistent state to prevent a deadlock. Patch by Victor
Stinner.