245613 2022-09-23 19:43:33 -0700 REGRESSION (253865@main): [ iOS ] scrollingcoordinator/ios/fixed-in-frame-layer-reconcile-layer-position.html is a consistent failure 2023-05-05 07:35:26 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED CONFIGURATION CHANGED InRadar P2 Normal --- 1 rackler webkit-unassigned simon.fraser webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 1900819 0 rackler 2022-09-23 19:43:33 -0700 Description: scrollingcoordinator/ios/fixed-in-frame-layer-reconcile-layer-position.html This iOS consistent failure only happens on the iPad (5th generation) model. The first failure I saw on the dashboard was on 8/27/2022 at 253870@main. As I look at the commits in the range, 253865@main has to do with scrolling and is most likely the cause of the regression. Reproduction steps: I can reproduce this on 253865@main but cannot reproduce it on 253864@main or earlier. Command: run-webkit-tests --ipad-simulator --model 'iPad (5th generation)' --release --exit-after-n-failures 1 --exit-after-n-crashes-or-timeouts 1 --iterations 50 --no-retry scrollingcoordinator/ios/fixed-in-frame-layer-reconcile-layer-position.html Result: Regressions: Unexpected text-only failures (1) scrollingcoordinator/ios/fixed-in-frame-layer-reconcile-layer-position.html [ Failure ] History: https://results.webkit.org/?suite=layout-tests&test=scrollingcoordinator%2Fios%2Ffixed-in-frame-layer-reconcile-layer-position.html&limit=50000&model=iPad%20(5th%20generation) Diff: --- /Volumes/Data/worker/Apple-iPadOS-16-Simulator-Release-WK2-Tests/build/layout-test-results/scrollingcoordinator/ios/fixed-in-frame-layer-reconcile-layer-position-expected.txt +++ /Volumes/Data/worker/Apple-iPadOS-16-Simulator-Release-WK2-Tests/build/layout-test-results/scrollingcoordinator/ios/fixed-in-frame-layer-reconcile-layer-position-actual.txt @@ -31,8 +31,13 @@ (children 1 (GraphicsLayer (position 8.00 10.00) - (bounds 200.00 140.00) - (contentsOpaque 1) + (preserves3D 1) + (children 1 + (GraphicsLayer + (bounds 200.00 140.00) + (contentsOpaque 1) + ) + ) ) ) ) 1900820 1 webkit-bug-importer 2022-09-23 19:44:22 -0700 <rdar://problem/100350197> 1900821 2 rackler 2022-09-23 19:51:14 -0700 I have marked this test as a flaky failure while this issue is investigated because it only happens on the iPad (5th generation) model. 1900822 3 ews-feeder 2022-09-23 19:57:43 -0700 Test gardening commit 254817@main (2eaadf70eac0): <https://commits.webkit.org/254817@main> Reviewed commits have been landed. Closing PR #4659 and removing active labels. 1901205 4 ews-feeder 2022-09-26 09:22:45 -0700 Test gardening commit 254864@main (6f702caba723): <https://commits.webkit.org/254864@main> Reviewed commits have been landed. Closing PR #4710 and removing active labels. 1953157 5 rackler 2023-05-05 07:21:17 -0700 Re-baseline test 1953158 6 ews-feeder 2023-05-05 07:26:22 -0700 Test gardening commit 263717@main (383a982530b9): <https://commits.webkit.org/263717@main> Reviewed commits have been landed. Closing PR #13496 and removing active labels. 1953159 7 rackler 2023-05-05 07:30:34 -0700 Remove test expectation. 1953161 8 ews-feeder 2023-05-05 07:35:26 -0700 Test gardening commit 263718@main (7c7f0792fd14): <https://commits.webkit.org/263718@main> Reviewed commits have been landed. Closing PR #13497 and removing active labels.