313435 2026-04-27 08:01:55 -0700 [TSan] Add BitSet::concurrentGet for MarkedBlock mark-bit reads 2026-05-07 20:09:27 -0700 1 1 1 Unclassified WebKit JavaScriptCore WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 simon.lewis simon.lewis webkit-bug-importer oldest_to_newest 2204931 0 simon.lewis 2026-04-27 08:01:55 -0700 MarkedBlock::isMarked reads mark bits while parallel GC workers set them; add a relaxed-load BitSet::concurrentGet so TSan stops flagging the intentional race. 2207190 1 webkit-bug-importer 2026-05-04 08:02:12 -0700 <rdar://problem/176180795> 2208830 2 ews-feeder 2026-05-07 20:09:25 -0700 Committed 312852@main (0c5600b9794d): <https://commits.webkit.org/312852@main> Reviewed commits have been landed. Closing PR #63700 and removing active labels.