240918 2022-05-25 11:54:05 -0700 REGRESSION (~2022-02-24): [ iOS Debug ] Two fast/loader/ tests are a flaky failure 2022-05-30 19:23:52 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified NEW InRadar P2 Normal --- 1 rackler rackler achristensen ap cdumez webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 1871792 0 rackler 2022-05-25 11:54:05 -0700 Description: fast/loader/create-frame-in-DOMContentLoaded.html fast/loader/user-style-sheet-resource-load-callbacks.html The first failure that I saw on the dashboard was on 4/1/2022 at r292236, but this does not appear relevant to causing this issue. This test has been flaky for its entire history on the dashboard. History: https://results.webkit.org/?platform=ios&style=debug&limit=50000&suite=layout-tests&suite=layout-tests&test=fast%2Floader%2Fcreate-frame-in-DOMContentLoaded.html&test=fast%2Floader%2Fuser-style-sheet-resource-load-callbacks.html Diff: --- /Volumes/Data/worker/Apple-iOS-15-Simulator-Debug-WK2-Tests/build/layout-test-results/fast/loader/create-frame-in-DOMContentLoaded-expected.txt +++ /Volumes/Data/worker/Apple-iOS-15-Simulator-Debug-WK2-Tests/build/layout-test-results/fast/loader/create-frame-in-DOMContentLoaded-actual.txt @@ -2,4 +2,3 @@ C) Entered load event handler function. D) Exiting load event handler function. Test passed if messages A, B, C, D were all in order and there was no crash. -B) Exiting DOMContentLoaded event handler function. --- /Volumes/Data/worker/Apple-iOS-15-Simulator-Debug-WK2-Tests/build/layout-test-results/fast/loader/user-style-sheet-resource-load-callbacks-expected.txt +++ /Volumes/Data/worker/Apple-iOS-15-Simulator-Debug-WK2-Tests/build/layout-test-results/fast/loader/user-style-sheet-resource-load-callbacks-actual.txt @@ -1 +1,2 @@ +user-style-sheet-resource-load-callbacks.html - didFinishLoading This tests that no delegate methods are sent for the user style sheet. No stylesheet load messages should be dumped. 1871793 1 webkit-bug-importer 2022-05-25 11:54:31 -0700 <rdar://problem/93918602> 1871801 2 rackler 2022-05-25 12:16:15 -0700 I have marked this test as a flaky failure while this issue is investigated. 1871802 3 rackler 2022-05-25 12:18:56 -0700 Pull request: https://github.com/WebKit/WebKit/pull/1021 1871803 4 ews-feeder 2022-05-25 12:22:41 -0700 Test gardening commit r294817 (250970@main): <https://commits.webkit.org/250970@main> Reviewed commits have been landed. Closing PR #1021 and removing active labels. 1872867 5 ap 2022-05-30 19:23:52 -0700 This is definitely a regression, but the first failure I see in history for both tests is on 2022-02-24, 247740@main. It's infrequent, so this revision is definitely not the culprit.