Bug 245002

Summary: [ iOS wk2 ] compositing/clipping/border-radius-async-overflow-non-stacking.html is a almost constant failure
Product: WebKit Reporter: Hercules Hjalmarsson <hhjalmarsson>
Component: New BugsAssignee: 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   
Attachments:
Description Flags
Diff images none

Description Hercules Hjalmarsson 2022-09-09 13:56:12 PDT 
compositing/clipping/border-radius-async-overflow-non-stacking.html

Is an almost constant image failure on iOS wk2 ToT and since a re-sync at 254253@main.

HISTORY:
https://results.webkit.org/?suite=layout-tests&test=compositing/clipping/border-radius-async-overflow-non-stacking.html

DIFF images attached.
Comment 1 Radar WebKit Bug Importer 2022-09-09 13:56:31 PDT 
<rdar://problem/99758433>
Comment 2 Hercules Hjalmarsson 2022-09-09 14:00:41 PDT 
Created attachment 462243 [details]
Diff images
Comment 3 Hercules Hjalmarsson 2022-09-09 14:09:07 PDT 
This issue can be bisected to 254253@main using command:

run-webkit-tests -f --exit-after-n-failures 1  --force  --child-processes=5 --iterations=500  --ios-simulator  --release compositing/clipping/border-radius-async-overflow-non-stacking.html
Comment 4 EWS 2022-09-09 14:11:23 PDT 
Test gardening commit 254326@main (129698cc413e): <https://commits.webkit.org/254326@main>

Reviewed commits have been landed. Closing PR #4191 and removing active labels.
Comment 5 Simon Fraser (smfr) 2022-09-09 14:27:42 PDT 
This just needs some pixel tolerance.
Comment 6 Simon Fraser (smfr) 2022-09-09 15:59:13 PDT 
I tried using CA_DISABLE_GENERIC_SHADERS to fix this and it didn't help.
Comment 7 Simon Fraser (smfr) 2022-09-09 16:11:57 PDT 
Pull request: https://github.com/WebKit/WebKit/pull/4200
Comment 8 EWS 2022-09-09 17:12:58 PDT 
Test gardening commit 254340@main (724f0c8d1a43): <https://commits.webkit.org/254340@main>

Reviewed commits have been landed. Closing PR #4200 and removing active labels.