[Webkit-unassigned] [Bug 244336] New: REGRESSION (250910 at main): [ macOS wk1 ] fast/canvas/canvas-createPattern-video-loading.html is a flaky timeout

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=244336

            Bug ID: 244336
           Summary: REGRESSION (250910 at main): [ macOS wk1 ]
                    fast/canvas/canvas-createPattern-video-loading.html is
                    a flaky timeout
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: rackler at apple.com

Description:
fast/canvas/canvas-createPattern-video-loading.html

The first timeout I saw on the dashboard was on 5/24/2022 at 250916 at main.  This appears to have regressed in the 250916 at main-250910@main range.  At 250910 at main, the fast/canvas/canvas-createPattern-video-loading.html test was re-written using requestVideoCallbackFrame, and this is most likely the cause for the start of the flaky timeouts at that same timeframe.

REPRODUCTION STEPS
I can reproduce this on 250910 at main.

Command: 
run-webkit-tests --debug -1 --exit-after-n-failures 1 --exit-after-n-crashes-or-timeouts 1 --iterations 50 -f --no-retry fast/canvas/canvas-createPattern-video-loading.html

Result: 
Unexpected flakiness: timeouts (1)
  fast/canvas/canvas-createPattern-video-loading.html [ Pass Timeout ]

History:
https://results.webkit.org/?suite=layout-tests&test=fast%2Fcanvas%2Fcanvas-createPattern-video-loading.html&platform=mac&limit=50000&flavor=wk1

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