Bug 223292

Summary: [ macOS wk2 ARM64 ] fast/table/multiple-captions-crash4.html is a flakey Image failure
Product: WebKit Reporter: Robert Jenner <jenner>
Component: TextAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: ap, mmaxfield, ryanhaddad, simon.fraser, webkit-bot-watchers-bugzilla, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
See Also: https://bugs.webkit.org/show_bug.cgi?id=223206
Attachments:
Description Flags
Diff files for image failure none

Robert Jenner
Reported 2021-03-16 17:54:28 PDT
fast/table/multiple-captions-crash4.html is a flakey Image failure in macOS wk 2 in Apple Silicon only. HISTORY URL: https://results.webkit.org/?suite=layout-tests&test=fast%2Ftable%2Fmultiple-captions-crash4.html&architecture=arm64 Image Diff files have been attached to this bug.
Attachments
Diff files for image failure (70.54 KB, application/zip)
2021-03-16 17:57 PDT, Robert Jenner 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Robert Jenner
Comment 1 2021-03-16 17:57:01 PDT
Created attachment 423420 [details] Diff files for image failure Attaching Diff files of flakey image failure.
Robert Jenner
Comment 2 2021-03-16 18:03:03 PDT
Updated test expectations here to Pass ImageOnlyFailure while test is being reviewed: https://trac.webkit.org/changeset/274544/webkit
Robert Jenner
Comment 3 2021-03-16 18:03:28 PDT
The failures are only occurring on Apple Silicon Macs, and as such I cannot reproduce them because I do not have access to one.
Radar WebKit Bug Importer
Comment 4 2021-03-16 18:06:47 PDT
<rdar://problem/75504326>
Alexey Proskuryakov
Comment 5 2021-03-17 11:16:03 PDT
The diff is about text antialiasing in unstyled text that just says "Passes if it doesn't crash!" This seems like it may be a systemic issue, possibly a preceding test leaking rendering state, or a timing issue when switching between modes. Other than that, why is a "pass if no crash" test even a reftest?
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