Bug 242481

Summary: [ macOS ] fast/css/direct-adjacent-style-sharing-3.html is a flaky failure
Product: WebKit Reporter: Hercules Hjalmarsson <hhjalmarsson>
Component: New BugsAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: koivisto, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
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Description Hercules Hjalmarsson 2022-07-07 14:27:43 PDT 
fast/css/direct-adjacent-style-sharing-3.html

Is a very flaky failure on macOS wk2.

HISTORY:
https://results.webkit.org/?suite=layout-tests&test=fast%2Fcss%2Fdirect-adjacent-style-sharing-3.html

DIFF URL:
https://build.webkit.org/results/Apple-Monterey-Release-WK2-Tests/252234%40main%20(4839)/fast/css/direct-adjacent-style-sharing-3-diffs.html

Diff images attached to this bug.
Comment 1 Hercules Hjalmarsson 2022-07-07 14:30:12 PDT 
Created attachment 460745 [details]
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Comment 2 Radar WebKit Bug Importer 2022-07-07 14:31:18 PDT 
<rdar://problem/96625970>
Comment 3 Hercules Hjalmarsson 2022-07-07 14:57:56 PDT 
I was able to reproduce a similar (Not exactly the same) flaky image error by running 10k iterations with command:

run-webkit-test fast/css/direct-adjacent-style-sharing-3.html

Diff reproduced images attached to this bug.
Comment 4 Hercules Hjalmarsson 2022-07-07 15:02:06 PDT 
Created attachment 460748 [details]
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Comment 5 Hercules Hjalmarsson 2022-07-07 15:13:37 PDT 
Pull request: https://github.com/WebKit/WebKit/pull/2199
Comment 6 EWS 2022-07-07 15:35:06 PDT 
Test gardening commit 252245@main (4cba28f9aa69): <https://commits.webkit.org/252245@main>

Reviewed commits have been landed. Closing PR #2199 and removing active labels.