206947 2020-01-29 10:30:23 -0800 REGRESSION (r255338): [Catalina WK1] Multiple throttling layout tests became flaky 2020-01-29 14:54:43 -0800 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED CONFIGURATION CHANGED https://bugs.webkit.org/show_bug.cgi?id=206839 InRadar P2 Normal --- 1 jacob_uphoff webkit-unassigned webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 1612541 0 jacob_uphoff 2020-01-29 10:30:23 -0800 fast/dom/nested-timer-visible-element-throttling.html along with multiple other tests under "throttling" re flaky failures History: https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&test=fast%2Fdom%2Fnested-timer-visible-element-throttling.html&test=fast%2Fdom%2Frepeating-timer-element-overflow-throttling.html&test=fast%2Fdom%2Frepeating-timer-element-overflowing-child-own-layer-throttling.html&test=fast%2Fdom%2Frepeating-timer-mixed-visible-display-none-elements-throttling.html&test=fast%2Fdom%2Frepeating-timer-visible-element-throttling.html&test=fast%2Fdom%2Ftimer-height-change-no-throttling.html&platform=mac Diff: --- /Volumes/Data/slave/catalina-release-tests-wk1/build/layout-test-results/fast/dom/nested-timer-visible-element-throttling-expected.txt +++ /Volumes/Data/slave/catalina-release-tests-wk1/build/layout-test-results/fast/dom/nested-timer-visible-element-throttling-actual.txt @@ -6,9 +6,9 @@ The timer should initially not be throttled. PASS internals.isTimerThrottled(timeoutId) is false 5th iteration, timer should not have been throttled. -PASS wasThrottled is false +FAIL wasThrottled should be false. Was true. 6th iteration, timer should still be unthrottled. -PASS internals.isTimerThrottled(timeoutId) is false +FAIL internals.isTimerThrottled(timeoutId) should be false. Was true. PASS successfullyParsed is true TEST COMPLETE 1612542 1 webkit-bug-importer 2020-01-29 10:30:41 -0800 <rdar://problem/58996561> 1612551 2 ryanhaddad 2020-01-29 10:52:42 -0800 This started with: REGRESSION (r255158): http/tests/frame-throttling/raf-throttle-in-cross-origin-subframe.html is a flaky failure ​https://bugs.webkit.org/show_bug.cgi?id=206839 https://trac.webkit.org/changeset/255338/webkit 1612705 3 ryanhaddad 2020-01-29 14:54:43 -0800 Reverted r255338 for reason: Introduced flakiness in multiple throttling layout tests Committed r255388: <https://trac.webkit.org/changeset/255388>