REGRESSION: [Big Sur Release ARM64 wk2] fullscreen/full-screen-remove-ancestor.html is a flaky crash

• Component: Media
• Status: RESOLVED DUPLICATE

[Eric Hutchison]

Created attachment 432415 [details]
Crash Log

fullscreen/full-screen-remove-ancestor.html 

Started seeing the crash around r278412.

History: https://results.webkit.org/?suite=layout-tests&test=fullscreen%2Ffull-screen-remove-ancestor.html&platform=ios&platform=mac&version_name=iOS%2014&version_name=Catalina&version_name=Big%20Sur

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libsystem_trace.dylib         	0x0000000188a539e8 os_trace_blob_addns + 8
1   libsystem_trace.dylib         	0x0000000188a536d0 _os_log_fmt_flatten_data_into_blob + 104
2   libsystem_trace.dylib         	0x0000000188a5360c _os_log_fmt_flatten_to_blob + 268
3   libsystem_trace.dylib         	0x0000000188a520f4 _os_log_impl_flatten_and_send + 2212
4   libsystem_trace.dylib         	0x0000000188a51838 _os_log + 148
5   libsystem_trace.dylib         	0x0000000188a5179c _os_log_impl + 24
6   com.apple.WebCore             	0x0000000104d43260 void WTF::Logger::log<WTF::Logger::LogSiteIdentifier, char [41]>(WTFLogChannel&, WTFLogLevel, WTF::Logger::LogSiteIdentifier const&, char const (&) [41]) + 276 (Logger.h:316)
7   com.apple.WebCore             	0x0000000105c320b0 error<WTF::Logger::LogSiteIdentifier, char [41]> + 36 (Logger.h:154) [inlined]

[Radar WebKit Bug Importer]

<rdar://problem/79879132>

[Ryan Haddad]

Dupe of https://bugs.webkit.org/show_bug.cgi?id=224085 ?

[Eric Hutchison]

*** This bug has been marked as a duplicate of bug 224085 ***