[Webkit-unassigned] [Bug 173680] New: Add release assertions to the callback map to help diagnose a hang in Safari

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=173680

            Bug ID: 173680
           Summary: Add release assertions to the callback map to help
                    diagnose a hang in Safari
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit2
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: rniwa at webkit.org

We're seeing a hang inside WebKit::CallbackMap in Safari,
and we suspect it could be caused by a hash table corruption.

Add release assertions to make sure this hash table isn't used in a non-main thread and empty value isn't used as a key.

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