Bug 243675

Summary: REGRESSION(253027@main): [ macOS ] 2X TestWebKitAPI.VideoControlsManager.(VideoControlsManagerMultipleVideosScrollOnlyLargeVideoOutOfView,VideoControlsManagerMultipleVideosScrollPlayingVideoWithSoundOutOfView) are flaky timeouts
Product: WebKit Reporter: Hercules Hjalmarsson <hhjalmarsson>
Component: New BugsAssignee: Nobody <webkit-unassigned>
Status: RESOLVED DUPLICATE    
Severity: Normal CC: achristensen, eric.carlson, heycam, rackler, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   

Description Hercules Hjalmarsson 2022-08-08 10:18:38 PDT 
TestWebKitAPI.VideoControlsManager.VideoControlsManagerMultipleVideosScrollOnlyLargeVideoOutOfView

Is a API test that is flakily timing out on macOS ToT and since 253027@main.

HISTORY:
https://results.webkit.org/?suite=api-tests&test=TestWebKitAPI.VideoControlsManager.VideoControlsManagerMultipleVideosScrollOnlyLargeVideoOutOfView

DIFF:
NA

DIFF URL:
https://build.webkit.org/#/builders/370/builds/4511/steps/19/logs/stdio
Comment 1 Radar WebKit Bug Importer 2022-08-08 10:19:09 PDT 
<rdar://problem/98327430>
Comment 2 Hercules Hjalmarsson 2022-08-08 10:24:19 PDT 
The timeout appears to be most easily reproduced on an arm64 machine and downloading the release build similarly to the bots.

I was able to bisect the issue to 253027@main running command:

run-api-tests TestWebKitAPI.VideoControlsManager.VideoControlsManagerMultipleVideosScrollOnlyLargeVideoOutOfView --iterations=100
Comment 3 Hercules Hjalmarsson 2022-08-08 12:36:30 PDT 
TestWebKitAPI.VideoControlsManager.VideoControlsManagerMultipleVideosScrollPlayingVideoWithSoundOutOfView

Found another API test that appears to be related as they have the same regression point.

It's worth to note this test appears to have been timing out before the regression point. However, the timeouts on this test occur more often after the regression point.

HISTORY:
https://results.webkit.org/?suite=api-tests&test=TestWebKitAPI.VideoControlsManager.VideoControlsManagerMultipleVideosScrollPlayingVideoWithSoundOutOfView&limit=50000

DIFF:
NA

DIFF URL:
https://build.webkit.org/#/builders/370/builds/4511/steps/19/logs/stdio
Comment 4 Hercules Hjalmarsson 2022-08-18 09:12:53 PDT 
*** Bug 243938 has been marked as a duplicate of this bug. ***
Comment 5 Karl Rackler 2022-09-13 06:01:46 PDT 
TestWebKitAPI.VideoControlsManager.VideoControlsManagerMultipleVideosScrollPlayingVideoWithSoundOutOfView

I have disabled this test because it is a frequent flaky timeout, while this issue is investigated.
Comment 6 EWS 2022-09-13 06:09:19 PDT 
Test gardening commit 254431@main (ea76c52d2022): <https://commits.webkit.org/254431@main>

Reviewed commits have been landed. Closing PR #4305 and removing active labels.
Comment 7 EWS 2022-09-13 06:49:51 PDT 
Test gardening commit 254436@main (c2d8811e9a7a): <https://commits.webkit.org/254436@main>

Reviewed commits have been landed. Closing PR #4307 and removing active labels.
Comment 8 EWS 2022-09-13 06:57:58 PDT 
Test gardening commit 254438@main (dea84226aa52): <https://commits.webkit.org/254438@main>

Reviewed commits have been landed. Closing PR #4309 and removing active labels.
Comment 9 Cameron McCormack (:heycam) 2022-09-29 00:25:25 PDT 
Duping to bug 175909, which has the same underlying issue.

*** This bug has been marked as a duplicate of bug 175909 ***