[Webkit-unassigned] [Bug 222073] New: [ BigSur Wk2 Debug ] http/tests/media/modern-media-controls/skip-back-support/skip-back-support-live-broadcast.html is crash with assert: iterator != atomStringTable.end()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=222073

            Bug ID: 222073
           Summary: [ BigSur Wk2 Debug ]
                    http/tests/media/modern-media-controls/skip-back-suppo
                    rt/skip-back-support-live-broadcast.html is crash with
                    assert: iterator != atomStringTable.end()
           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: amir_mark at apple.com

http/tests/media/modern-media-controls/skip-back-support/skip-back-support-live-broadcast.html 

Is a crashing with assert: iterator != atomStringTable.end()

History: 

https://results.webkit.org/?suite=layout-tests&test=http%2Ftests%2Fmedia%2Fmodern-media-controls%2Fskip-back-support%2Fskip-back-support-live-broadcast.html

Crash Log:

ASSERTION FAILED: The string being removed is an atom in the string table of an other thread!
iterator != atomStringTable.end()
/Volumes/Data/slave/bigsur-debug/build/Source/WTF/wtf/text/AtomStringImpl.cpp(471) : static void WTF::AtomStringImpl::remove(WTF::AtomStringImpl *)
1   0x144dd1a49 WTFCrash
2   0x144ddaed2 WTF::AtomStringImpl::remove(WTF::AtomStringImpl*)
3   0x144e989f8 WTF::StringImpl::~StringImpl()
4   0x144e98dc5 WTF::StringImpl::~StringImpl()
5   0x144e98de5 WTF::StringImpl::destroy(WTF::StringImpl*)

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