RESOLVED FIXED313435
[TSan] Add BitSet::concurrentGet for MarkedBlock mark-bit reads 
https://bugs.webkit.org/show_bug.cgi?id=313435
Summary [TSan] Add BitSet::concurrentGet for MarkedBlock mark-bit reads
Simon Lewis
Reported 2026-04-27 08:01:55 PDT
MarkedBlock::isMarked reads mark bits while parallel GC workers set them; add a relaxed-load BitSet::concurrentGet so TSan stops flagging the intentional race.
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Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2026-05-04 08:02:12 PDT
<rdar://problem/176180795>
EWS
Comment 2 2026-05-07 20:09:25 PDT
Committed 312852@main (0c5600b9794d): <https://commits.webkit.org/312852@main> Reviewed commits have been landed. Closing PR #63700 and removing active labels.
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