Bug 224699

Summary: REGRESSION (r275890-r275887?): [ macOS Release wk2 ] TestWebKitAPI.WebKit.ResizeReversePaginatedWebView is failing
Product: WebKit Reporter: Robert Jenner <jenner>
Component: Layout and RenderingAssignee: Tim Horton <thorton>
Status: RESOLVED FIXED    
Severity: Normal CC: ap, beidson, bfulgham, ggaren, megan_gardner, sihui_liu, simon.fraser, thorton, webkit-bot-watchers-bugzilla, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch
ews-feeder: commit-queue-
Patch none

Robert Jenner
Reported 2021-04-16 15:45:11 PDT
TestWebKitAPI.WebKit.ResizeReversePaginatedWebView is failing and flakey crashing on Catalina and BigSur wk2 Release. HISTORY: https://results.webkit.org/?suite=api-tests&test=TestWebKitAPI.WebKit.ResizeReversePaginatedWebView /Volumes/Data/worker/bigsur-release/build/Tools/TestWebKitAPI/Tests/WebKit/ResizeReversePaginatedWebView.cpp:53 Expected equality of these values: expectedPageCount Which is: 49 pageCount Which is: 54
Attachments
Patch (2.14 KB, patch)
2021-05-13 02:25 PDT, Tim Horton 		ews-feeder: commit-queue-
DetailsFormatted DiffDiff
Patch (2.14 KB, patch)
2021-05-13 02:32 PDT, Tim Horton 		no flags
DetailsFormatted DiffDiff
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2021-04-16 15:45:41 PDT
<rdar://problem/76782199>
Robert Jenner
Comment 2 2021-04-16 16:07:33 PDT
The history shows a pretty clear regression point at r275890. Will work on reproducing the failures, and verifying the regression point.
Alexey Proskuryakov
Comment 3 2021-04-19 17:10:08 PDT
It seems super unlikely to me that it's due to r275890. But must be very close to it. Perhaps r275889 or r275887?
Robert Jenner
Comment 4 2021-04-22 16:41:30 PDT
I've been trying for several days to reproduce the failures, and have been unsuccessful. I've ran on Debug, Release, and Production builds. I've iterated up to 10000 runs. And I've ran in parallel using child-process=1 and child-process=50. None of which have led to a reproduction of the failure. Due to this, I'm still uncertain of the regress point.
Tim Horton
Comment 5 2021-05-13 02:25:57 PDT
Created attachment 428469 [details] Patch
Tim Horton
Comment 6 2021-05-13 02:32:30 PDT
Created attachment 428470 [details] Patch
EWS
Comment 7 2021-05-13 03:39:22 PDT
Committed r277429 (237677@main): <https://commits.webkit.org/237677@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 428470 [details].
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