[Webkit-unassigned] [Bug 218370] New: [GTK][WPE] test imported/w3c/web-platform-tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/no-cors.https.html is flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=218370

            Bug ID: 218370
           Summary: [GTK][WPE] test
                    imported/w3c/web-platform-tests/webaudio/the-audio-api
                    /the-mediaelementaudiosourcenode-interface/no-cors.htt
                    ps.html is flaky
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Audio
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: clopez at igalia.com
                CC: bugs-noreply at webkitgtk.org, cdumez at apple.com,
                    pnormand at igalia.com

The test imported/w3c/web-platform-tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/no-cors.https.html added in r262405 is flaky on GTK and WPE.

When it fails it gives this diff

--- /home/buildbot/worker/gtk-linux-64-release-tests/build/layout-test-results/imported/w3c/web-platform-tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/no-cors.https-expected.txt
+++ /home/buildbot/worker/gtk-linux-64-release-tests/build/layout-test-results/imported/w3c/web-platform-tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/no-cors.https-actual.txt
@@ -1,15 +1,11 @@
+
+Harness Error (TIMEOUT), message = null

 PASS # AUDIT TASK RUNNER STARTED.
 PASS Executing "setting-up-graph"
-PASS Executing "start-playback-and-capture"
-PASS Audit report
+TIMEOUT Executing "start-playback-and-capture" Test timed out
+NOTRUN Audit report
 PASS > [setting-up-graph]
 PASS < [setting-up-graph] All assertions passed. (total 0 assertions)
 PASS > [start-playback-and-capture]
-PASS   Recorded channel #0 contains only the constant 0.
-PASS   Recorded channel #1 contains only the constant 0.
-PASS   Recorded channel #2 contains only the constant 0.
-PASS   Recorded channel #3 contains only the constant 0.
-PASS < [start-playback-and-capture] All assertions passed. (total 4 assertions)
-PASS # AUDIT TASK RUNNER FINISHED: 2 tasks ran successfully.


On the interval [r265175-r269175] the flaky statistics for this tests are:
 - gtk-release: failed 25 of 773 runs 
 - wpe-release: failed 6 of 721 runs

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