218063 2020-10-21 16:58:33 -0700 REGRESSION: [ Catalina ] 50+ webrtc test crashes on Catalina Debug 2021-07-06 04:37:04 -0700 1 1 1 Unclassified WebKit WebRTC WebKit Nightly Build Unspecified Unspecified RESOLVED CONFIGURATION CHANGED InRadar P2 Normal --- 1 tsavell webkit-unassigned ap eric.carlson peng.liu6 webkit-bot-watchers-bugzilla webkit-bug-importer youennf oldest_to_newest 1700471 0 tsavell 2020-10-21 16:58:33 -0700 After a commit around r268758 50+ webrtc tests began crashing on Catalina WK2 Debug and around 20 on WK1 Debug. These tests are flaky and we will see runs with 50+ crashes and runs with 1 failure. history of runs: https://build.webkit.org/builders/Apple-Catalina-Debug-WK2-Tests?numbuilds=50 Example: https://build.webkit.org/builders/Apple-Catalina-Debug-WK2-Tests/builds/7339 This is reproducible on the bots, I am looking to find a test list that can reproduce these to be more specific. Results: https://build.webkit.org/results/Apple-Catalina-Debug-WK2-Tests/r268822%20(7339)/results.html 1700472 1 webkit-bug-importer 2020-10-21 16:59:13 -0700 <rdar://problem/70551805> 1700521 2 ap 2020-10-21 19:15:35 -0700 # Fatal error in: Source/webrtc/rtc_base/operations_chain.h, line 136 # last system error: 0 # Check failed: (&sequence_checker_)->IsCurrent() It would seem like r268758 only changes GPU Process code, which I think is not supposed to be on in tests. But there are no other potential culprits anywhere near. 1701140 3 tsavell 2020-10-23 13:57:08 -0700 Speculatively reverted https://trac.webkit.org/changeset/268938/webkit to fix this. Bisection seems to have shown this as the regression point though the commit seems very unrelated 1701945 4 ryanhaddad 2020-10-27 10:15:48 -0700 (In reply to Truitt Savell from comment #3) > Speculatively reverted https://trac.webkit.org/changeset/268938/webkit to > fix this. Bisection seems to have shown this as the regression point though > the commit seems very unrelated The issue persists, so this commit was not the cause of the crashes. 1774921 5 youennf 2021-07-06 04:37:04 -0700 Marking as configuration changed, please reopen if crash is still happenning.