[Webkit-unassigned] [Bug 153724] New: Flaky assertion failures on storage/indexeddb/cursor-update-private.html

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=153724

            Bug ID: 153724
           Summary: Flaky assertion failures on
                    storage/indexeddb/cursor-update-private.html
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore JavaScript
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ap at webkit.org
                CC: beidson at apple.com, ryanhaddad at apple.com

storage/indexeddb/cursor-update-private.html hist an assertion somewhat frequently:

http://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=storage%2Findexeddb%2Fcursor-update-private.html

ASSERTION FAILED: !m_isolatedWorld->isNormal() || m_wrapper || !m_jsFunction
/Volumes/Data/slave/elcapitan-debug/build/Source/WebCore/bindings/js/JSEventListener.h(118) : JSC::JSObject *WebCore::JSEventListener::jsFunction(WebCore::ScriptExecutionContext *) const
1   0x104dd5670 WTFCrash
2   0x10a995273 WebCore::JSEventListener::jsFunction(WebCore::ScriptExecutionContext*) const
3   0x10ac1f98b WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*)
4   0x10a2f1857 WebCore::EventTarget::fireEventListeners(WebCore::Event&, WebCore::EventTargetData*, WTF::Vector<WebCore::RegisteredEventListener, 1ul, WTF::CrashOnOverflow, 16ul>&)
5   0x10a2f1083 WebCore::EventTarget::fireEventListeners(WebCore::Event&)
6   0x10a7beceb WebCore::IDBEventDispatcher::dispatch(WebCore::Event&, WTF::Vector<WTF::RefPtr<WebCore::EventTarget>, 0ul, WTF::CrashOnOverflow, 16ul>&)

This assertion means that a function was called after having been garbage collected.

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