197639 2019-05-06 16:45:15 -0700 REGRESSION (r244900): Layout Test media/track/track-cue-missing.html is failing on iOS and macOS debug 2019-05-07 11:44:17 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=197547 InRadar P2 Normal --- 1 ryanhaddad webkit-unassigned ap simon.fraser webkit-bot-watchers-bugzilla webkit-bug-importer zalan oldest_to_newest 1533672 0 ryanhaddad 2019-05-06 16:45:15 -0700 The following layout test is failing on iOS and macOS debug bots media/track/track-cue-missing.html Probable cause: The dashboard suggests this regression range: https://trac.webkit.org/log/webkit/?verbose=on&rev=244901&stop_rev=244900 Flakiness Dashboard: https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=media%2Ftrack%2Ftrack-cue-missing.html --- /Volumes/Data/slave/mojave-debug-tests-wk2/build/layout-test-results/media/track/track-cue-missing-expected.txt +++ /Volumes/Data/slave/mojave-debug-tests-wk2/build/layout-test-results/media/track/track-cue-missing-actual.txt @@ -5,6 +5,6 @@ EVENT(loadeddata) Created 121 cues. EVENT(ended) -EXPECTED (missedCueCount < '50') OK +EXPECTED (missedCueCount < '50'), OBSERVED '72' FAIL END OF TEST 1533673 1 ryanhaddad 2019-05-06 16:45:28 -0700 I have not yet been able to reproduce this locally. 1533681 2 ryanhaddad 2019-05-06 17:02:30 -0700 Using the following command, I cannot reproduce this with a debug build of r244899, but I can with r244900: run-webkit-tests media/track/track-cue-missing.html --no-retry --iter 10 --exit-after-n-failures 1 1533682 3 ryanhaddad 2019-05-06 17:03:20 -0700 Simon, could you please take a look at this? 1533690 4 simon.fraser 2019-05-06 17:08:39 -0700 It seems like the code that runs for logging just made the test slower, so it's a bad test. 1533691 5 simon.fraser 2019-05-06 17:09:41 -0700 Presumably it's only bad in debug. Let's just mark it flakey for debug only. 1533768 6 ap 2019-05-06 21:51:00 -0700 The plan is to roll back the patch, not to increase the number of tests marked as flaky. 1533996 7 ryanhaddad 2019-05-07 11:43:23 -0700 Rolled out r244900 in https://trac.webkit.org/r245019 1534000 8 webkit-bug-importer 2019-05-07 11:44:17 -0700 <rdar://problem/50548909>