Bug 223104 - [MacOS Wk1] compositing/visibility/iframe-visibility-hidden.html is a flakey image failure
Summary: [MacOS Wk1] compositing/visibility/iframe-visibility-hidden.html is a flakey ...
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Compositing (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Jean-Yves Avenard [:jya]
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2021-03-11 16:54 PST by Amir Mark Jr
Modified: 2021-06-17 15:25 PDT (History)
19 users (show)

See Also:


Attachments
Expected (10.28 KB, image/png)
2021-03-11 16:55 PST, Amir Mark Jr
no flags Details
Actual (10.39 KB, image/png)
2021-03-11 16:56 PST, Amir Mark Jr
no flags Details
Diff (2.36 KB, image/png)
2021-03-11 16:56 PST, Amir Mark Jr
no flags Details
Patch (4.13 KB, patch)
2021-06-15 01:12 PDT, Jean-Yves Avenard [:jya]
no flags Details | Formatted Diff | Diff
Patch (16.87 KB, patch)
2021-06-15 04:06 PDT, Jean-Yves Avenard [:jya]
no flags Details | Formatted Diff | Diff
Patch (17.40 KB, patch)
2021-06-16 00:04 PDT, Jean-Yves Avenard [:jya]
no flags Details | Formatted Diff | Diff
Patch (2.34 KB, patch)
2021-06-16 05:19 PDT, Jean-Yves Avenard [:jya]
no flags Details | Formatted Diff | Diff

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Description Amir Mark Jr 2021-03-11 16:54:07 PST
compositing/visibility/iframe-visibility-hidden.html

Is a flakey failure that is happening on Big Sur Wk1 debug and release, Big Sur Arm64 Wk1 debug and release, and Catalina WK1 debug and release.


History:

https://results.webkit.org/?suite=layout-tests&test=compositing%2Fvisibility%2Fiframe-visibility-hidden.html


Image Diff:

https://build.webkit.org/results/Apple-BigSur-Release-WK1-Tests/r274301%20(948)/compositing/visibility/iframe-visibility-hidden-diff.png
Comment 1 Amir Mark Jr 2021-03-11 16:55:32 PST
Created attachment 422993 [details]
Expected
Comment 2 Amir Mark Jr 2021-03-11 16:56:09 PST
Created attachment 422994 [details]
Actual
Comment 3 Amir Mark Jr 2021-03-11 16:56:45 PST
Created attachment 422995 [details]
Diff
Comment 4 Radar WebKit Bug Importer 2021-03-11 16:57:21 PST
<rdar://problem/75340005>
Comment 5 Amir Mark Jr 2021-03-11 17:11:47 PST
Able to bisect this failure to r274264. 

Able to reproduce on r274264 but unable to reproduce on r274263 or r274258, using this command:

run-webkit-tests compositing/visibility/iframe-visibility-hidden.html --iterations 1000 -f -1
Comment 6 Amir Mark Jr 2021-03-11 18:11:51 PST
Updated test expectations:

https://trac.webkit.org/changeset/274315/webkit
Comment 7 Alexey Proskuryakov 2021-03-12 16:43:12 PST
This change was all in media code, so a little surprising. But if it's indeed that, it has to be a substantial issue. I think.
Comment 8 Simon Fraser (smfr) 2021-03-15 09:50:59 PDT
Not really surprising; the test case uses video.
Comment 9 Jer Noble 2021-04-26 16:12:29 PDT
Test is a image failure, not a timeout; video is accurately firing the 'load' event. If the background isn't painting, that's not a video bug.
Comment 10 Jean-Yves Avenard [:jya] 2021-06-15 01:12:27 PDT
Created attachment 431412 [details]
Patch

test wip
Comment 11 Jean-Yves Avenard [:jya] 2021-06-15 04:06:40 PDT
Created attachment 431421 [details]
Patch

test wip #2
Comment 12 Jean-Yves Avenard [:jya] 2021-06-16 00:04:13 PDT
Created attachment 431523 [details]
Patch

test wip #3
Comment 13 Jean-Yves Avenard [:jya] 2021-06-16 05:19:22 PDT
Created attachment 431538 [details]
Patch

test wip #4