Bug 232456 – REGRESSION (r283935): fast/css/style-element-process-crash.html is a flaky failure

• Component: Forms
• Status: RESOLVED FIXED

[Eric Hutchison]

fast/css/style-element-process-crash.html

is a flaky failure on iOS15 Simulator, most often failing on gpuprocess.

History: https://results.webkit.org/?suite=layout-tests&test=fast/css/style-element-process-crash.html

Build: https://ews-build.webkit.org/#/builders/68/builds/660

Results: https://ews-build.s3-us-west-2.amazonaws.com/iOS-15-Simulator-WK2-Tests-EWS/r442696-660/results.html

Diff:
--- /Volumes/Data/worker/iOS-15-Simulator-WK2-Tests-EWS/build/layout-test-results/fast/css/style-element-process-crash-expected.txt
+++ /Volumes/Data/worker/iOS-15-Simulator-WK2-Tests-EWS/build/layout-test-results/fast/css/style-element-process-crash-actual.txt
@@ -1 +1 @@
-PASS. WebKit didn't crash.
+

Reproduced failure locally on ToT (r284955) using run-webkit-tests --ios-simulator --force -f --iterations 500 --exit-after-n-failures 1 --clobber-old-results fast/css/style-element-process-crash.html and run-webkit-tests --ios-simulator --force -f --iterations 500 --exit-after-n-failures 1 --clobber-old-results --use-gpu-process fast/css/style-element-process-crash.html.

[Radar WebKit Bug Importer]

<rdar://problem/84779240>

[Eric Hutchison]

Updated test expectations at https://trac.webkit.org/changeset/285005/webkit

[Alexey Proskuryakov]

History is somewhat sparse on iOS, but this is clearly a regression.

On the WPE bot, this regressed on 2021-10-11. Must have been r283935.

[Chris Dumez]

Created attachment 442977 [details]
Patch

[EWS]

Committed r285106 (243747@main): <https://commits.webkit.org/243747@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 442977 [details].