Bug 217610

Summary: REGRESSION (r268294): [ iOS wk2 ] imported/blink/fast/css/zoomed-intrinsic-width.html is a constant image failure
Product: WebKit Reporter: Karl Rackler <rackler>
Component: New BugsAssignee: zalan <zalan>
Status: RESOLVED FIXED    
Severity: Normal CC: commit-queue, koivisto, webkit-bot-watchers-bugzilla, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
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Description Karl Rackler 2020-10-12 08:36:33 PDT 
Description:
imported/blink/fast/css/zoomed-intrinsic-width.html

The first image failure that I see this on the dashboard was 10/09/20 at r268294, and has to do with LFC integration enabling overflow hidden which could have introduced the constant image failures. The change was introduced here https://trac.webkit.org/changeset/268294/webkit.

REPRODUCTION STEPS
I can reproduce this on r268294, but unable to reproduce on r268293.

Command: 
run-webkit-tests --ios-simulator imported/blink/fast/css/zoomed-intrinsic-width.html

Result: 
Regressions: Unexpected image-only failures (1)
  imported/blink/fast/css/zoomed-intrinsic-width.html [ ImageOnlyFailure ]

History:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fblink%2Ffast%2Fcss%2Fzoomed-intrinsic-width.html&limit=50000&platform=ios

Image Results:
https://build.webkit.org/results/Apple-iOS-14-Simulator-Release-WK2-Tests/r268348%20(249)/imported/blink/fast/css/zoomed-intrinsic-width-diffs.html
Comment 1 Radar WebKit Bug Importer 2020-10-12 08:38:30 PDT 
<rdar://problem/70207977>
Comment 2 Karl Rackler 2020-10-12 08:53:51 PDT 
I have marked this test as image failure while this issue is investigated.
https://trac.webkit.org/changeset/268351/webkit
Comment 3 zalan 2020-10-12 12:23:44 PDT 
Created attachment 411143 [details]
Patch
Comment 4 Alexey Proskuryakov 2020-10-12 17:39:03 PDT 
*** Bug 217608 has been marked as a duplicate of this bug. ***
Comment 5 zalan 2020-10-12 18:25:55 PDT 
Created attachment 411186 [details]
Patch
Comment 6 EWS 2020-10-12 18:27:18 PDT 
ChangeLog entry in LayoutTests/ChangeLog contains OOPS!.
Comment 7 zalan 2020-10-12 18:30:56 PDT 
Created attachment 411188 [details]
Patch
Comment 8 EWS 2020-10-12 19:02:52 PDT 
Committed r268382: <https://trac.webkit.org/changeset/268382>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 411188 [details].