Remove TaskLimiterToken::ReleaseOnce for fix #8567
Closed
Conversation
This file contains 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
Summary: Rare TSAN and valgrind failures are caused by unnecessary reading of a field on the TaskLimiterToken::limiter_ for an assertion after the token has been released and the limiter destroyed. To simplify we can simply destroy the token before triggering DB shutdown (potentially destroying the limiter). This makes the ReleaseOnce logic unnecessary. Test Plan: watch for more failures in CI
|
@pdillinger has imported this pull request. If you are a Facebook employee, you can view this diff on Phabricator. |
ajkr
approved these changes
Jul 21, 2021
|
@pdillinger merged this pull request in 84eef26. |
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Outdated suggestions cannot be applied.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.
Summary: Rare TSAN and valgrind failures are caused by unnecessary
reading of a field on the TaskLimiterToken::limiter_ for an assertion
after the token has been released and the limiter destroyed. To simplify
we can simply destroy the token before triggering DB shutdown
(potentially destroying the limiter). This makes the ReleaseOnce logic
unnecessary.
Test Plan: watch for more failures in CI