[Webkit-unassigned] [Bug 223969] New: [ macOS wk2 ] imported/w3c/web-platform-tests/webaudio/the-audio-api/the-audiocontext-interface/processing-after-resume.https.html is a flakey text failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=223969

            Bug ID: 223969
           Summary: [ macOS wk2 ]
                    imported/w3c/web-platform-tests/webaudio/the-audio-api
                    /the-audiocontext-interface/processing-after-resume.ht
                    tps.html is a flakey text 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: Jenner at apple.com

imported/w3c/web-platform-tests/webaudio/the-audio-api/the-audiocontext-interface/processing-after-resume.https.html

is a flakey failure on macOS BigSur wk2. 

The very first failure occurred at r274555. Since then, it has failed mostly on BigSur wk2 on Apple Silicon, but it has failed one time on Intel. 

HISTORY URL:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fwebaudio%2Fthe-audio-api%2Fthe-audiocontext-interface%2Fprocessing-after-resume.https.html&platform=mac

TEXT DIFF:
-PASS Test consistency of processing after resume()
+FAIL Test consistency of processing after resume() assert_equals: node1 processed frame count expected 256 but got 0

Was able to reproduce the failure on BigSur wk2 Debug ToT on Intel using the following test:
run-webkit-test imported/w3c/web-platform-tests/webaudio/the-audio-api/the-audiocontext-interface/processing-after-resume.https.html  --iterations 1000 -f

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