[Webkit-unassigned] [Bug 198441] New: REGRESSION (r245712?) [ Mojave ] Layout Test webrtc/peer-connection-remote-audio-mute2.html is a flaky failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=198441

            Bug ID: 198441
           Summary: REGRESSION (r245712?) [ Mojave ] Layout Test
                    webrtc/peer-connection-remote-audio-mute2.html is a
                    flaky failure
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sroberts at apple.com

The following layout test is flaky on Mac WK2 Release and Debug

webrtc/peer-connection-remote-audio-mute2.html

Probable cause:

Test started to show up on the dashboard ~245728, the only audio related change around then appears to be r245712. 

I cannot reproduce the failure locally. 

I have tried 1000 iterations, Debug, Release, Guard Malloc. I have also tried the test lists from the worker of the failed runs and cannot reproduce it locally. 

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=webrtc%2Fpeer-connection-remote-audio-mute2.html

Diff:

--- /Volumes/Data/slave/mojave-release-tests-wk2/build/layout-test-results/webrtc/peer-connection-remote-audio-mute2-expected.txt
+++ /Volumes/Data/slave/mojave-release-tests-wk2/build/layout-test-results/webrtc/peer-connection-remote-audio-mute2-actual.txt
@@ -1,3 +1,3 @@

-PASS Muting and unmuting an incoming audio track 
+FAIL Muting and unmuting an incoming audio track assert_true: heard hum from remote enabled track expected true got false

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