289109 2025-03-04 12:52:43 -0800 REGRESSION(283087@main?): [ iOS ] imported/w3c/web-platform-tests/css/css-view-transitions/transition-skipped-after-animation-started.html is a flaky crash. 2025-03-04 13:17:44 -0800 1 1 1 Unclassified WebKit CSS WebKit Nightly Build Unspecified Unspecified NEW InRadar P2 Normal --- 1 y_karimi webkit-unassigned koivisto webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 2100361 0 474449 y_karimi 2025-03-04 12:52:43 -0800 Created attachment 474449 imported/w3c/web-platform-tests/css/css-view-transitions/transition-skipped-after-animation-started.html imported/w3c/web-platform-tests/css/css-view-transitions/transition-skipped-after-animation-started.html This test is a flaky crash on iOS. HISTORY: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-view-transitions%2Ftransition-skipped-after-animation-started.html STDERR: Attached REPRODUCIBILITY: I was unable to reproduce on the iOS 18.2 simulator. REGRESSION: Contextual information indicates the probable regression point is 283087@main. The code paths changed in that commit appear to be directly related to the observed regression test failure. This shows the regression more clearly: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-view-transitions%2Ftransition-skipped-after-animation-started.html&recent=false&version_name=iOS%2018&version_name=iOS%2017 2100362 1 webkit-bug-importer 2025-03-04 12:52:52 -0800 <rdar://problem/146136540> 2100371 2 ews-feeder 2025-03-04 13:05:14 -0800 Test gardening commit 291587@main (8a8e8d434933): <https://commits.webkit.org/291587@main> Reviewed commits have been landed. Closing PR #41872 and removing active labels. 2100373 3 ap 2025-03-04 13:17:44 -0800 I checked several test runs and a bot, and couldn't find a coach log. So this looks more like an unexpected exit than an actual crash (not that it's any better or worse). 474449 2025-03-04 20:52:43 -0800 2025-03-04 20:52:43 -0800 imported/w3c/web-platform-tests/css/css-view-transitions/transition-skipped-after-animation-started.html transition-skipped-after-animation-started-crash-log.txt text/plain 191 y_karimi Tm8gY3Jhc2ggbG9nIGZvdW5kIGZvciBjb20uYXBwbGUuV2ViS2l0LldlYkNvbnRlbnQuRGV2ZWxv cG1lbnQ6MTc0NjUuCgpzdGRvdXQ6CgpzdGRlcnI6CmNvbS5hcHBsZS5XZWJLaXQuV2ViQ29udGVu dC5EZXZlbG9wbWVudCB0ZXJtaW5hdGVkIChwaWQgMTc0NjUpIGZvciByZWFzb246IGNyYXNoCkxF QUs6IDEgV2ViUGFnZVByb3h5Cgo=