[Webkit-unassigned] [Bug 209752] New: [mac wk2] media/modern-media-controls/scrubber-support/scrubber-support-media-api.html is a flaky crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=209752

            Bug ID: 209752
           Summary: [mac wk2]
                    media/modern-media-controls/scrubber-support/scrubber-
                    support-media-api.html is a flaky crash
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: aakash_jain at apple.com

media/modern-media-controls/scrubber-support/scrubber-support-media-api.html is a flaky crash on mac wk2 release.

History: https://results.webkit.org/?suite=layout-tests&test=media%2Fmodern-media-controls%2Fscrubber-support%2Fscrubber-support-media-api.html&platform=mac&flavor=wk2

e.g.: https://ews-build.webkit.org/results/Commit-Queue/r394922-334/results.html
https://build.webkit.org/results/Apple%20Mojave%20Release%20WK2%20(Tests)/r259125%20(11553)/results.html

Crash log: https://ews-build.webkit.org/results/Commit-Queue/r394922-334/media/modern-media-controls/scrubber-support/scrubber-support-media-api-crash-log.txt

Application Specific Information:
CRASHING TEST: media/modern-media-controls/scrubber-support/scrubber-support-media-api.html

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.WebCore                   0x0000000789578049 WebCore::MediaPlayer::createVideoFullscreenLayer() + 9 (memory:2617)
1   com.apple.WebCore                   0x00000007891135d5 WebCore::HTMLMediaElement::createVideoFullscreenLayer() + 21 (HTMLMediaElement.cpp:6251)
2   com.apple.WebCore                   0x00000007888666b2 WebCore::VideoFullscreenModelVideoElement::createVideoFullscreenLayer() + 18 (VideoFullscreenModelVideoElement.mm:115)
3   com.apple.WebKit                    0x0000000103501e1b WebKit::VideoFullscreenManager::enterVideoFullscreenForVideoElement(WebCore::HTMLVideoElement&, unsigned int, bool) + 395 (RetainPtr.h:100)
4   libdispatch.dylib                   0x00007fff6c0645f8 _dispatch_call_block_and_release + 12

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