232330 2021-10-26 13:48:56 -0700 Regression (r284741?) : [ macOS Debug ] compositing/video/video-reflection.html is a flaky timeout 2026-02-03 03:34:23 -0800 1 1 1 Unclassified WebKit Compositing WebKit Nightly Build Unspecified Unspecified NEW InRadar P2 Normal --- 1 ayumi_kojima webkit-unassigned dino simon.fraser thorton vitaly webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 1809014 0 ayumi_kojima 2021-10-26 13:48:56 -0700 compositing/video/video-reflection.html Is a flaky timeout on macOS wk2 Debug and Catalina Debug gpuprocess. History: https://results.webkit.org/?suite=layout-tests&test=compositing%2Fvideo%2Fvideo-reflection.html Result page: https://build.webkit.org/results/Apple-BigSur-Debug-AppleSilicon-WK2-Tests/r284866%20(3839)/results.html Diff: --- /Volumes/Data/worker/bigsur-debug-applesilicon-tests-wk2/build/layout-test-results/compositing/video/video-reflection-expected.txt +++ /Volumes/Data/worker/bigsur-debug-applesilicon-tests-wk2/build/layout-test-results/compositing/video/video-reflection-actual.txt @@ -1,3 +1,3 @@ +FAIL: Timed out waiting for notifyDone to be called -EXPECTED (video.currentTime == '1') OK 1809015 1 webkit-bug-importer 2021-10-26 13:51:09 -0700 <rdar://problem/84679805> 1809016 2 ayumi_kojima 2021-10-26 13:54:39 -0700 Marked test expectations https://trac.webkit.org/changeset/284893/webkit 1809125 3 ayumi_kojima 2021-10-26 17:30:58 -0700 I was able to reproduce the timeout locally on BigSur using run-webkit-tests --force --iterations 1000 --exit-after-n-crashes-or-timeouts 1 compositing/video/video-reflection.html --debug -f. The test timed out with r284750 and passed with r284749. 1809742 4 ap 2021-10-28 10:27:04 -0700 Per a slack discussion, r284750 is unlikely to have been the culprit. It's definitely something not too far before that, according to bot history. 1809774 5 ayumi_kojima 2021-10-28 12:08:18 -0700 The test is flaky and hard to reproduce. Iterated 1000 times (no -f flag this time because the test didn't start running with -f). It timed out with r284741 but passed with r284742. Tested a couple of revisions near r284741, but couldn't reproduce the timeout; hence couldn't identify the regression point. 284739 pass 284740 pass 284741 timeout 284742 pass 284743 pass 284749 pass 284750 timeout 2177517 6 vitaly 2026-02-03 03:34:23 -0800 Probably a duplicate of https://bugs.webkit.org/show_bug.cgi?id=122508