[Webkit-unassigned] [Bug 138961] crash in CAAnimation dealloc (CA::release_objects X::List)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=138961

--- Comment #3 from Daniel <danielo at opera.com> ---
Moved it to "Platform" category. I think this happens, because iOS-specific WebCore classes (like MediaSessionManageriOS) might be calling UIKit methods from the WebThread, which is not a safe thing to do. In the stack above MediaSessionManageriOS is creating MPVolumeView from the WebThread, which eventually creates some UIView-s.

Related code line:
https://github.com/WebKit/webkit/blob/master/Source/WebCore/platform/audio/ios/MediaSessionManagerIOS.mm#L239

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