Bug 209752

Summary:	[mac wk2] media/modern-media-controls/scrubber-support/scrubber-support-media-api.html is a flaky crash
Product:	WebKit	Reporter:	Aakash Jain <aakash_jain>
Component:	Tools / Tests	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	ap, dino, graouts, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	Other
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=209668 https://bugs.webkit.org/show_bug.cgi?id=209688

Description Aakash Jain 2020-03-30 10:16:21 PDT

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

Comment 1 Alexey Proskuryakov 2020-03-30 10:52:04 PDT

Probably dupe of bug 209688 and/or bug 209668.

Comment 2 Ryan Haddad 2020-03-30 13:14:34 PDT

rdar://61062687