[Webkit-unassigned] [Bug 77946] New: Regression: JSC hangs in JSC::SlotVisitor::copyAndAppend on fast/events/message-channel-gc-2.html

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=77946

           Summary: Regression: JSC hangs in
                    JSC::SlotVisitor::copyAndAppend on
                    fast/events/message-channel-gc-2.html
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: oliver at apple.com, fpizlo at apple.com


Run DRT on fast/events/message-channel-gc-2.html at r106903, DRT spends 99% of CPU inside JSCSlotVisitor::copyAndAppend and times out.

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