Bug 225664

Summary:	[ BigSur wk2 arm64 ] editing/selection/move-by-character-brute-force.html (layout-test) is a flaky timeout
Product:	WebKit	Reporter:	Robert Jenner <jenner>
Component:	New Bugs	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	megan_gardner, ryanhaddad, webkit-bot-watchers-bugzilla, webkit-bug-importer, wenson_hsieh
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Robert Jenner 2021-05-11 11:18:41 PDT

editing/selection/move-by-character-brute-force.html

is a flaky timeout on BigSur wk 2 Release on Apple Silicon Macs only. 

HISTORY:
https://results.webkit.org/?suite=layout-tests&test=editing%2Fselection%2Fmove-by-character-brute-force.html

No timeout diff or stderr was generated in the layout test results.

Comment 1 Robert Jenner 2021-05-11 14:22:34 PDT

Upon further inspection it appears this also has been timing out on Debug as well. It was constantly timing out, but then it stopped and became just a flaky failure starting at r276578. 


Since this only appears to occur on Apple Silicon Macs, I cannot reproduce the timeout as I do not have access to said system type. 

Updated test expectations to Pass Timeout here:
https://trac.webkit.org/changeset/277340/webkit

Comment 2 Radar WebKit Bug Importer 2021-05-11 14:23:51 PDT

<rdar://problem/77864182>

Comment 3 Alexey Proskuryakov 2021-05-12 10:18:56 PDT

This test is very slow on Intel too, so it probably needs a [ Slow ] attribute. It's surprising that it's slower on Apple Silicon though, should be a configuration issue like bug 225666.

Comment 4 Robert Jenner 2021-05-12 15:55:05 PDT

As per @Alexey's recommendation, I have updated the test expectations to [ Slow ] instead of [ Pass Timeout ] here:
https://trac.webkit.org/changeset/277398/webkit