Bug 260917

Summary: [ Ventura WK2 ] fast/forms/border-color-relayout.html is a flaky ImageOnlyFailure.
Product: WebKit Reporter: Ben Schwartz <ben_schwartz>
Component: FormsAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: cdumez, webkit-bot-watchers-bugzilla, webkit-bug-importer, wenson_hsieh
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
border-color-relayout-repro-list.txt
none
diff: border-color-relayout.html none

Description Ben Schwartz 2023-08-30 10:50:32 PDT 
Created attachment 467493 [details]
border-color-relayout-repro-list.txt

fast/forms/border-color-relayout.html

This test is a flaky image-only failure, so far only found on wk2 on macOS Ventura.

HISTORY:

https://results.webkit.org/api/results/layout-tests/fast%2Fforms%2Fborder-color-relayout.html

IMAGES URL:

https://build.webkit.org/results/Apple-Ventura-Release-AppleSilicon-WK2-Tests/267419%40main%20(4688)/fast/forms/border-color-relayout-diffs.html

REPRODUCIBILITY:

I was able to reproduce this bug on macOS Ventura (13.5, 22G74/arm64) using the following command (file attached):

run-webkit-tests --verbose --clobber-old-results --child-processes 1 --test-list /path/to/border-color-relayout-repro-list.txt

I was unable to reproduce on any version of macOS other than Ventura; however, the problem may exist on other macOS versions as the test is extremely flaky and is a relatively new regression.

REGRESSION:

I was unable to bisect a certain regression point. The earliest viewable failure on arm64 is 267411@main, and the earliest on x86_64 is 267061@main.
Comment 1 Radar WebKit Bug Importer 2023-08-30 10:50:49 PDT 
<rdar://problem/114710798>
Comment 2 EWS 2023-08-30 12:59:12 PDT 
Test gardening commit 267464@main (fb885f3aa8e3): <https://commits.webkit.org/267464@main>

Reviewed commits have been landed. Closing PR #17240 and removing active labels.
Comment 3 EWS 2023-08-30 14:57:13 PDT 
Test gardening commit 267468@main (6133754f5456): <https://commits.webkit.org/267468@main>

Reviewed commits have been landed. Closing PR #17251 and removing active labels.
Comment 4 Ben Schwartz 2023-08-30 16:39:28 PDT 
Created attachment 467502 [details]
diff: border-color-relayout.html