Bug 245030

Summary:	REGRESSION (254304@main): Four compositing test are a consistent failure in WK1
Product:	WebKit	Reporter:	Karl Rackler <rackler>
Component:	New Bugs	Assignee:	Simon Fraser (smfr) <simon.fraser>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	simon.fraser, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Karl Rackler 2022-09-10 11:21:19 PDT

Description:
compositing/contents-opaque/body-background-skipped.html
compositing/rtl/rtl-fixed.html
compositing/contents-opaque/body-background-painted.html
compositing/fixed-image-loading.html

These tests passed consistently until the change at 254304@main, when they began to fail consistently.

Reproduction steps:
I can reproduce this on 254304@main but cannot reproduce it on 254303@main or earlier.

Command: 
run-webkit-tests -1  --exit-after-n-failures 1 --exit-after-n-crashes-or-timeouts 1 --iterations 50 -f --no-retry compositing/contents-opaque/body-background-skipped.html

Result: 
Regressions: Unexpected text-only failures (1)
  compositing/contents-opaque/body-background-skipped.html [ Failure ]

History:
https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&test=compositing%2Fcontents-opaque%2Fbody-background-painted.html&test=compositing%2Fcontents-opaque%2Fbody-background-skipped.html&test=compositing%2Ffixed-image-loading.html&test=compositing%2Frtl%2Frtl-fixed.html&flavor=wk1&limit=50000

Diff:
https://build.webkit.org/results/Apple-Monterey-Release-WK1-Tests/254313@main%20(5383)/compositing/contents-opaque/body-background-painted-diff.txt
https://build.webkit.org/results/Apple-Monterey-Release-WK1-Tests/254313@main%20(5383)/compositing/contents-opaque/body-background-skipped-diff.txt
https://build.webkit.org/results/Apple-Monterey-Release-WK1-Tests/254313@main%20(5383)/compositing/fixed-image-loading-diff.txt
https://build.webkit.org/results/Apple-Monterey-Release-WK1-Tests/254313@main%20(5383)/compositing/rtl/rtl-fixed-diff.txt

Comment 1 Radar WebKit Bug Importer 2022-09-10 11:21:49 PDT

<rdar://problem/99781740>

Comment 2 Karl Rackler 2022-09-10 11:26:37 PDT

I have marked this test as a consistent failure while this issue is investigated.

Comment 3 EWS 2022-09-10 11:33:14 PDT

Test gardening commit 254352@main (ec1e6e7f47d5): <https://commits.webkit.org/254352@main>

Reviewed commits have been landed. Closing PR #4220 and removing active labels.

Comment 4 Simon Fraser (smfr) 2022-09-10 12:16:02 PDT

These just need new baselines.

Comment 5 Simon Fraser (smfr) 2022-09-13 18:17:05 PDT

Pull request: https://github.com/WebKit/WebKit/pull/4220

Comment 6 Simon Fraser (smfr) 2022-09-13 18:23:23 PDT

Pull request: https://github.com/WebKit/WebKit/pull/4337

Comment 7 EWS 2022-09-13 22:08:32 PDT

Committed 254467@main (64c4c2c2a133): <https://commits.webkit.org/254467@main>

Reviewed commits have been landed. Closing PR #4337 and removing active labels.