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Fix deadlock on shutdown if test_current_{exception,frames} fails#102019
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bedevere-bot commentedFeb 18, 2023
Most changes to Pythonrequire a NEWS entry. Please add it using theblurb_it web app or theblurb command-line tool. |
These tests spawn a thread that waits on a threading.Event. If the test fails any of its assertions, the Event won't be signaled and the thread will wait indefinitely, causing a deadlock when threading._shutdown() tries to join all outstanding threads.Co-authored-by: Brett Simmers <bsimmers@meta.com>
JelleZijlstra pushed a commit to JelleZijlstra/cpython that referenced this pull requestSep 10, 2024
…thon#102019)* Don't deadlock on shutdown if test_current_{exception,frames} failsThese tests spawn a thread that waits on a threading.Event. If the test fails any of its assertions, the Event won't be signaled and the thread will wait indefinitely, causing a deadlock when threading._shutdown() tries to join all outstanding threads.Co-authored-by: Brett Simmers <bsimmers@meta.com>* Add a news entry* Fix whitespace---------Co-authored-by: Brett Simmers <bsimmers@meta.com>Co-authored-by: Oleg Iarygin <oleg@arhadthedev.net>
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These tests spawn a thread that waits on a
threading.Event. If the test fails any of its assertions, theEventwon't be signaled and the thread will wait indefinitely, causing a deadlock whenthreading._shutdown()tries to join all outstanding threads.The solution is just to put the code in a
try-finallyblock, with the existing clean-up in thefinally.@swtaarrs found and fixed this originally while working onCinder.
Hopefully this is trivial enough to not need an issue or a NEWS blurb.