[Webkit-unassigned] [Bug 229614] New: [ BigSur EWS] webrtc/video-mediastreamtrack-stats.html is a flaky crash / failing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=229614

            Bug ID: 229614
           Summary: [ BigSur EWS] webrtc/video-mediastreamtrack-stats.html
                    is a flaky crash / failing
           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: ayumi_kojima at apple.com

webrtc/video-mediastreamtrack-stats.html

Is a flaky crash on macOS-AppleSilicon-Big-Sur-Debug-WK2-Tests-EWS.

According to the history, the test has been flaky failing on Big Sur wk2 intel but I don't see any crash: https://results.webkit.org/?suite=layout-tests&test=webrtc%2Fvideo-mediastreamtrack-stats.html

It looks like the flaky crash started on EWS at this build: https://ews-build.webkit.org/#/builders/60/builds/9803

Crash log: 

No crash log found for GPUProcess:95140.

stdout:

stderr:
LEAK: 3 WebPageProxy

Diff:

--- /Volumes/Data/worker/bigsur-release-tests-wk2/build/layout-test-results/webrtc/video-mediastreamtrack-stats-expected.txt
+++ /Volumes/Data/worker/bigsur-release-tests-wk2/build/layout-test-results/webrtc/video-mediastreamtrack-stats-actual.txt
@@ -1,3 +1,3 @@

-PASS Basic video media stream track stats
+FAIL Basic video media stream track stats assert_equals: expected (number) 480 but got (undefined) undefined

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