Bug 276624 – REGRESSION(280917@main): [ macOS iOS ] fast/dynamic/layer-hit-test-crash.html is flakey failing

• Status: NEW
• Component: Layout and Rendering

[Anfernee Viduya]

fast/dynamic/layer-hit-test-crash.html is a flakey failure.

HISTORY:
https://results.webkit.org/?suite=layout-tests&test=fast%2Fdynamic%2Flayer-hit-test-crash.html&platform=mac&platform=ios&platform=visionos&flavor=wk1&flavor=wk2

DIFF:
@@ -13,4 +13,6 @@
           text run at (32,18) width 4: "."
 layer at (50,50) size 200x200
   RenderBlock (positioned) zI: 1 {DIV} at (50,50) size 200x200 [bgcolor=#FFFF00]
+layer at (70,50) size 100x100
+  RenderBlock (positioned) zI: 5 {DIV} at (20,0) size 100x100 [bgcolor=#FF0000]
 caret: position 1 of child 2 {#text} of child 1 {DIV} of body

Link to Diff
https://build.webkit.org/results/Apple-Sonoma-Release-WK2-Tests/280968@main%20(3775)/fast/dynamic/layer-hit-test-crash-diff.txt

DESCRIPTION: 
The test is flakey failing on all queues.

[Radar WebKit Bug Importer]

<rdar://problem/131780130>

[Anfernee Viduya]

REPRODUCIBILITY: 
I was able to reproduce using ToT on wk1. 
run-webkit-tests 280977@main fast/dynamic/layer-hit-test-crash.html -1

[EWS]

Test gardening commit 280984@main (5ce214d901d6): <https://commits.webkit.org/280984@main>

Reviewed commits have been landed. Closing PR #30833 and removing active labels.

[EWS]

Test gardening commit 280938.159@safari-7619-branch (2782b8b7ed06): <https://commits.webkit.org/280938.159@safari-7619-branch>

Reviewed commits have been landed. Closing PR #1522 and removing active labels.