Bug 276499 – REGRESSION (280643@main): [ iOS EWS ] 11x media* (layout-tests) are constant/flaky failures

• Status: RESOLVED
• Resolution: FIXED
• Component: Media

[Dawn Morningstar]

compositing/geometry/video-opacity-overlay.html [ Pass Failure ]
compositing/layers-inside-overflow-scroll.html [ Pass Failure ]
compositing/overflow/overflow-compositing-descendant.html [ Pass Failure ]
compositing/overflow/scroll-ancestor-update.html [ Pass Failure ]
compositing/reflections/load-video-in-reflection.html [ Pass Failure ]
compositing/self-painting-layers.html [ Pass Failure ]
media/media-captions-no-controls.html [ Failure ]
media/video-aspect-ratio.html [ Failure ]
media/video-canvas-alpha.html [ Failure ]
media/video-layer-crash.html [ Failure ]
media/video-zoom.html [ Failure ]

These 11x layout tests started failing after 280643@main, they're also slowing down EWS. Usually from the diff I would suggest rebaslines, but since some of these are flaky, rebasline is not an option.

HISTORY:
https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&test=compositing%2Fgeometry%2Fvideo-opacity-overlay.html&test=compositing%2Flayers-inside-overflow-scroll.html&test=compositing%2Foverflow%2Foverflow-compositing-descendant.html&test=compositing%2Foverflow%2Fscroll-ancestor-update.html&test=compositing%2Freflections%2Fload-video-in-reflection.html&test=compositing%2Fself-painting-layers.html&test=media%2Fmedia-captions-no-controls.html&test=media%2Fvideo-aspect-ratio.html&test=media%2Fvideo-canvas-alpha.html&test=media%2Fvideo-layer-crash.html&test=media%2Fvideo-zoom.html&platform=ios

DIFF:
--- /Volumes/Data/worker/Apple-iPadOS-17-Simulator-Debug-WK2-Tests/build/layout-test-results/media/video-layer-crash-expected.txt
+++ /Volumes/Data/worker/Apple-iPadOS-17-Simulator-Debug-WK2-Tests/build/layout-test-results/media/video-layer-crash-actual.txt
@@ -18,5 +18,13 @@
         RenderBR {BR} at (210,322) size 0x19
 layer at (12,64) size 206x156
   RenderVideo {VIDEO} at (4,20) size 206x156 [border: (3px solid #FF0000)]
+layer at (15,67) size 200x150
+  RenderBlock (relative positioned) {DIV} at (3,3) size 200x150
+layer at (15,67) size 200x150
+  RenderBlock (positioned) {DIV} at (0,0) size 200x150
 layer at (12,225) size 206x156
   RenderVideo {VIDEO} at (4,181) size 206x156 [border: (3px solid #FF0000)]
+layer at (15,228) size 200x150
+  RenderBlock (relative positioned) {DIV} at (3,3) size 200x150
+layer at (15,228) size 309x150
+  RenderBlock (positioned) {DIV} at (0,0) size 309x150

DIFF-URL:
https://build.webkit.org/results/Apple-iPadOS-17-Simulator-Debug-WK2-Tests/280643@main%20(1864)/media/video-layer-crash-diff.txt

Test-run:
https://build.webkit.org/results/Apple-iPadOS-17-Simulator-Debug-WK2-Tests/280643@main%20(1864)/results.html

[Radar WebKit Bug Importer]

<rdar://problem/131558048>

[Dawn Morningstar]

Pull request: https://github.com/WebKit/WebKit/pull/30712

[EWS]

Test gardening commit 280871@main (1be5578a5695): <https://commits.webkit.org/280871@main>

Reviewed commits have been landed. Closing PR #30712 and removing active labels.

[Eric Carlson]

Pull request: https://github.com/WebKit/WebKit/pull/30758

[EWS]

Committed 281082@main (8d9d83d24cd5): <https://commits.webkit.org/281082@main>

Reviewed commits have been landed. Closing PR #30758 and removing active labels.

[EWS]

Committed 280938.88@safari-7619-branch (059cf9ccb78c): <https://commits.webkit.org/280938.88@safari-7619-branch>

Reviewed commits have been landed. Closing PR #1448 and removing active labels.