gh-127879: Fix data race in _PyFreeList_Push
#127880
Merged
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
Writes to the `ob_tid` field need to use atomics because it may be concurrently read by a non-locking dictionary, list, or structmember read.
|
I tested this locally on top of #126865 and no longer see a TSan failure when running: |
Fidget-Spinner
approved these changes
Dec 12, 2024
mpage
approved these changes
Dec 12, 2024
srinivasreddy
pushed a commit
to srinivasreddy/cpython
that referenced
this pull request
Jan 8, 2025
Writes to the `ob_tid` field need to use atomics because it may be concurrently read by a non-locking dictionary, list, or structmember read.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
Writes to the
ob_tidfield need to use atomics because it may be concurrently read by a non-locking dictionary, list, or structmember read._PyFreeList_Push#127879