Bug 177826 - REGRESSION(High Sierra): Layout Test fast/multicol/newmulticol/spanner2.html is a flaky image failure on WK1
Summary: REGRESSION(High Sierra): Layout Test fast/multicol/newmulticol/spanner2.html ...
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: New Bugs (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Tim Horton
URL:
Keywords: InRadar
: 177623 177628 (view as bug list)
Depends on:
Blocks:
 
Reported: 2017-10-03 11:38 PDT by Matt Lewis
Modified: 2017-11-28 18:59 PST (History)
8 users (show)

See Also:


Attachments
Patch (2.21 KB, patch)
2017-11-28 18:23 PST, Tim Horton
no flags Details | Formatted Diff | Diff
Patch (2.41 KB, patch)
2017-11-28 18:24 PST, Tim Horton
no flags Details | Formatted Diff | Diff
Patch (3.88 KB, patch)
2017-11-28 18:31 PST, Tim Horton
no flags Details | Formatted Diff | Diff
Patch (3.17 KB, patch)
2017-11-28 18:31 PST, Tim Horton
no flags Details | Formatted Diff | Diff
Patch (3.88 KB, patch)
2017-11-28 18:32 PST, Tim Horton
no flags Details | Formatted Diff | Diff

Note You need to log in before you can comment on or make changes to this bug.
Description Matt Lewis 2017-10-03 11:38:03 PDT
fast/multicol/newmulticol/spanner2.html is a flaky Image Only failure on High Sierra WK1 and Leaks according to the flakiness dashboard.

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=fast%2Fmulticol%2Fnewmulticol%2Fspanner2.html

The image diff seems to just be a slight shifting of the image.

The build:
https://build.webkit.org/results/Apple%20High%20Sierra%20Debug%20WK1%20(Tests)/r222777%20(128)/results.html
https://build.webkit.org/results/Apple%20High%20Sierra%20Debug%20WK1%20(Tests)/r222777%20(128)/fast/multicol/newmulticol/spanner2-diffs.html

The first failure started with the first build after the High Sierra queues were brought up:
https://build.webkit.org/builders/Apple%20High%20Sierra%20Release%20WK1%20(Tests)/builds/0
Comment 1 Alexey Proskuryakov 2017-10-03 19:50:11 PDT
Does this reproduce when the test is run on its own?
Comment 2 Radar WebKit Bug Importer 2017-10-08 12:36:05 PDT
<rdar://problem/34876498>
Comment 3 Matt Lewis 2017-10-09 11:29:26 PDT
I have been unable to get the test to fail locally.
Comment 4 Alexey Proskuryakov 2017-10-09 12:41:59 PDT
This likely means that a preceding test does something that breaks subsequent tests. Can you check if that's the case, and bisect to the culprit if so?
Comment 5 Tim Horton 2017-11-28 18:23:50 PST
Created attachment 327814 [details]
Patch
Comment 6 Tim Horton 2017-11-28 18:24:48 PST
Created attachment 327815 [details]
Patch
Comment 7 Tim Horton 2017-11-28 18:31:16 PST
Created attachment 327816 [details]
Patch
Comment 8 Tim Horton 2017-11-28 18:31:25 PST
Created attachment 327817 [details]
Patch
Comment 9 Tim Horton 2017-11-28 18:32:03 PST
Created attachment 327818 [details]
Patch
Comment 10 Alexey Proskuryakov 2017-11-28 18:37:40 PST
Comment on attachment 327818 [details]
Patch

r=me, please wait for green EWS.

Thank you!
Comment 11 Alexey Proskuryakov 2017-11-28 18:38:27 PST
*** Bug 177628 has been marked as a duplicate of this bug. ***
Comment 12 Alexey Proskuryakov 2017-11-28 18:38:33 PST
*** Bug 177623 has been marked as a duplicate of this bug. ***
Comment 13 WebKit Commit Bot 2017-11-28 18:59:51 PST
Comment on attachment 327818 [details]
Patch

Clearing flags on attachment: 327818

Committed r225254: <https://trac.webkit.org/changeset/225254>
Comment 14 WebKit Commit Bot 2017-11-28 18:59:53 PST
All reviewed patches have been landed.  Closing bug.