[Webkit-unassigned] [Bug 248496] New: [ New Test ] (256342 at main): [ macOS Debug ] fast/events/message-port-gc-after-removing-event-listener.html is a flaky crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=248496

            Bug ID: 248496
           Summary: [ New Test ] (256342 at main): [ macOS Debug ]
                    fast/events/message-port-gc-after-removing-event-liste
                    ner.html is a flaky crash
           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: rackler at apple.com

Description:
fast/events/message-port-gc-after-removing-event-listener.html

The test was added at 256342 at main and was a flaky crash since then.  The history shows this affecting macOS Debug.

This issue can be bisected to 256342 at main using the command: 
run-webkit-tests --debug --iterations 4000 --exit-after-n-failures 1 --exit-after-n-crashes-or-timeouts 1 --debug-rwt-logging --no-retry --force --no-build -f fast/events/message-port-gc-after-removing-event-listener.html 

Result: 
Unexpected flakiness: crashes (1)
  fast/events/message-port-gc-after-removing-event-listener.html [ Pass Crash ]

History:
https://results.webkit.org/?suite=layout-tests&test=fast%2Fevents%2Fmessage-port-gc-after-removing-event-listener.html&style=debug&platform=mac

Crash Log:
No crash log found for com.apple.WebKit.WebContent.Development:79000.

stdout:

stderr:
com.apple.WebKit.WebContent.Development terminated (pid 79000) for reason: crash
LEAK: 1 WebPageProxy

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