[Webkit-unassigned] [Bug 192050] New: REGRESSION: [ MacOS ] Layout Test workers/bomb.html is crashing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=192050

            Bug ID: 192050
           Summary: REGRESSION: [ MacOS ] Layout Test workers/bomb.html is
                    crashing
           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: tsavell at apple.com
                CC: lforschler at apple.com

The following layout test is crashing on MacOS

workers/bomb.html

Probable cause:

This test is known to timeout on some platforms but is now crashing recently. I was able to reproduce the crashing on tip of tree using command:

run-webkit-tests --root testbuild-238565 workers/bomb.html --iterations 500 -f --exit-after-n-crashes 1

I am attempting to find the regression point

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=workers%2Fbomb.html

crash log:
https://build.webkit.org/results/Apple%20Sierra%20Release%20WK2%20(Tests)/r238565%20(13016)/workers/bomb-crash-log.txt

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