[3.11] gh-108520: Fix bad fork detection in nested multiprocessing use case (GH-108568) #108692
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters
… case (pythonGH-108568) pythongh-107275 introduced a regression where a SemLock would fail being passed along nested child processes, as the `is_fork_ctx` attribute would be left missing after the first deserialization. --------- (cherry picked from commit add8d45) Co-authored-by: albanD <desmaison.alban@gmail.com> Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Antoine Pitrou <pitrou@free.fr>
This was referenced Aug 30, 2023
Nested multiprocessing leads to
AttributeError: is_fork_ctx with forkserver or spawn methods #108520 Closed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
4 participants
Add this suggestion to a batch that can be applied as a single commit. This suggestion is invalid because no changes were made to the code. Suggestions cannot be applied while the pull request is closed. Suggestions cannot be applied while viewing a subset of changes. Only one suggestion per line can be applied in a batch. Add this suggestion to a batch that can be applied as a single commit. Applying suggestions on deleted lines is not supported. You must change the existing code in this line in order to create a valid suggestion. Outdated suggestions cannot be applied. This suggestion has been applied or marked resolved. Suggestions cannot be applied from pending reviews. Suggestions cannot be applied on multi-line comments. Suggestions cannot be applied while the pull request is queued to merge. Suggestion cannot be applied right now. Please check back later.
gh-107275 introduced a regression where a SemLock would fail being passed along nested child processes, as the
is_fork_ctxattribute would be left missing after the first deserialization.(cherry picked from commit add8d45)
Co-authored-by: albanD desmaison.alban@gmail.com
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Antoine Pitrou pitrou@free.fr
AttributeError: is_fork_ctxwithforkserverorspawnmethods #108520