231603 2021-10-12 12:03:10 -0700 [ iOS ] fast/scrolling/ios/reconcile-layer-position-recursive.html is a flaky failure 2021-10-15 15:36:50 -0700 1 1 1 Unclassified WebKit Scrolling WebKit Nightly Build iPhone / iPad Unspecified NEW InRadar P2 Normal --- 1 ayumi_kojima webkit-unassigned simon.fraser webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 1803284 0 ayumi_kojima 2021-10-12 12:03:10 -0700 fast/scrolling/ios/reconcile-layer-position-recursive.html Is a flaky failure on iOS 15. History: https://results.webkit.org/?suite=layout-tests&test=fast%2Fscrolling%2Fios%2Freconcile-layer-position-recursive.html Result page: https://build.webkit.org/results/Apple-iOS-15-Simulator-Release-WK2-Tests/r283979%20(142)/results.html# Diff: --- /Volumes/Data/worker/ios-simulator-15-release-tests-wk2/build/layout-test-results/fast/scrolling/ios/reconcile-layer-position-recursive-expected.txt +++ /Volumes/Data/worker/ios-simulator-15-release-tests-wk2/build/layout-test-results/fast/scrolling/ios/reconcile-layer-position-recursive-actual.txt @@ -1,15 +1,15 @@ (GraphicsLayer (anchor 0.00 0.00) (bounds 800.00 1621.00) - (visible rect 0.00, 1021.00 800.00 x 600.00) - (coverage rect 0.00, 1021.00 800.00 x 600.00) + (visible rect 0.00, 1020.50 800.00 x 600.00) + (coverage rect 0.00, 1020.50 800.00 x 600.00) (intersects coverage rect 1) (contentsScale 2.00) (children 1 (GraphicsLayer (bounds 800.00 1621.00) (contentsOpaque 1) - (visible rect 0.00, 1021.00 800.00 x 600.00) + (visible rect 0.00, 1020.50 800.00 x 600.00) (coverage rect 0.00, 765.00 1056.00 x 856.00) (intersects coverage rect 1) (contentsScale 2.00) @@ -22,15 +22,15 @@ (position 8.00 1008.00) (bounds 300.00 300.00) (drawsContent 1) - (visible rect 0.00, 13.00 300.00 x 287.00) + (visible rect 0.00, 12.50 300.00 x 287.50) (coverage rect -8.00, -243.00 1056.00 x 856.00) (intersects coverage rect 1) (contentsScale 2.00) (children 1 (GraphicsLayer (bounds 300.00 300.00) - (visible rect 0.00, 13.00 300.00 x 287.00) - (coverage rect 0.00, 13.00 300.00 x 287.00) + (visible rect 0.00, 12.50 300.00 x 287.50) + (coverage rect 0.00, 12.50 300.00 x 287.50) (intersects coverage rect 1) (contentsScale 2.00) (children 1 @@ -38,8 +38,8 @@ (anchor 0.00 0.00) (bounds 300.00 510.00) (drawsContent 1) - (visible rect 0.00, 13.00 300.00 x 287.00) - (coverage rect 0.00, 12.00 300.00 x 288.00) + (visible rect 0.00, 12.50 300.00 x 287.50) + (coverage rect 0.00, 12.50 300.00 x 287.50) (intersects coverage rect 1) (contentsScale 2.00) (children 1 @@ -48,7 +48,7 @@ (bounds 210.00 410.00) (drawsContent 1) (visible rect 0.00, 0.00 210.00 x 250.00) - (coverage rect -50.00, -38.00 300.00 x 288.00) + (coverage rect -50.00, -37.50 300.00 x 287.50) (intersects coverage rect 1) (contentsScale 2.00) (children 1 @@ -72,13 +72,13 @@ (contentsScale 2.00) (children 2 (GraphicsLayer - (position 7.00 28.00) - (approximate position 7.00 28.00) + (position 7.00 27.50) + (approximate position 7.00 27.50) (bounds 110.00 110.00) (contentsOpaque 1) (drawsContent 1) (visible rect 0.00, 0.00 110.00 x 110.00) - (coverage rect -7.00, -28.00 200.00 x 245.00) + (coverage rect -7.00, -27.50 200.00 x 245.00) (intersects coverage rect 1) (contentsScale 2.00) (children 1 @@ -89,7 +89,7 @@ (contentsOpaque 1) (drawsContent 1) (visible rect 0.00, 0.00 110.00 x 110.00) - (coverage rect -62.00, -83.00 200.00 x 245.00) + (coverage rect -62.00, -82.50 200.00 x 245.00) (intersects coverage rect 1) (contentsScale 2.00) ) 1803287 1 webkit-bug-importer 2021-10-12 12:04:38 -0700 <rdar://problem/84160039> 1803291 2 ayumi_kojima 2021-10-12 12:09:12 -0700 Marked test expectations https://trac.webkit.org/changeset/284001/webkit 1805074 3 ayumi_kojima 2021-10-15 15:36:50 -0700 I was not able to reproduce the failure locally on iOS 15 simulator using run-webkit-tests --force --ios-simulator --iterations 500 --exit-after-n-failures 1 fast/scrolling/ios/reconcile-layer-position-recursive.html