[Webkit-unassigned] [Bug 228006] New: [Big Sur wk1 Debug] imported/w3c/web-platform-tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-duration-loop.html is a flaky failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=228006

            Bug ID: 228006
           Summary: [Big Sur wk1 Debug]
                    imported/w3c/web-platform-tests/webaudio/the-audio-api
                    /the-audiobuffersourcenode-interface/audiobuffersource
                    -duration-loop.html is a flaky failure
           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

imported/w3c/web-platform-tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-duration-loop.html

Is a flaky failure on Big Sur E wk1 Debug.

History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fwebaudio%2Fthe-audio-api%2Fthe-audiobuffersourcenode-interface%2Faudiobuffersource-duration-loop.html

I was not able to reproduce the failure, but instead the test timed out on my local intel machine using:

run-webkit-tests imported/w3c/web-platform-tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-duration-loop.html --iterations 500 -f -1 --exit-after-n-failures 2 --debug

run-webkit-tests imported/w3c/web-platform-tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-duration-loop.html --iterations 50 -f -1 --exit-after-n-failures 2 --child-process 1 --debug

run-webkit-tests imported/w3c/web-platform-tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-duration-loop.html --iterations 50 -f -1 --exit-after-n-failures 2 --child-process 20 --debug

Diff: 

--- /Volumes/Data/worker/bigsur-debug-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-duration-loop-expected.txt
+++ /Volumes/Data/worker/bigsur-debug-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-duration-loop-actual.txt
@@ -5,4 +5,5 @@
 PASS > [loop with duration]
 PASS < [loop with duration] All assertions passed. (total 0 assertions)
 PASS # AUDIT TASK RUNNER FINISHED: 1 tasks ran successfully.
+PASS   audioBuffer.getChannelData is identical to the array [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1...].

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