[Webkit-unassigned] [Bug 167308] New: REGRESSION (r211033): ASSERTION FAILED: m_ptr in com.apple.WebCore: WTF::RefPtr<WebCore::Element>::operator* const + 70

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=167308

            Bug ID: 167308
           Summary: REGRESSION (r211033): ASSERTION FAILED: m_ptr in
                    com.apple.WebCore:
                    WTF::RefPtr<WebCore::Element>::operator* const + 70
    Classification: Unclassified
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ryanhaddad at apple.com

ASSERTION FAILED: m_ptr
/Volumes/Data/slave/elcapitan-debug/build/WebKitBuild/Debug/usr/local/include/wtf/RefPtr.h(73) : T &WTF::RefPtr<WebCore::Element>::operator*() const [T = WebCore::Element]
1   0x107b264c0 WTFCrash
2   0x10a51aaf9 WTF::RefPtr<WebCore::Element>::operator*() const
3   0x10ab2c222 WebCore::Document::webkitExitFullscreen()
4   0x10ab2bed5 WebCore::Document::webkitCancelFullScreen()
5   0x10b642b6a WebCore::jsDocumentPrototypeFunctionWebkitCancelFullScreenCaller(JSC::ExecState*, WebCore::JSDocument*, JSC::ThrowScope&)
6   0x10b635bc4 long long WebCore::BindingCaller<WebCore::JSDocument>::callOperation<&(WebCore::jsDocumentPrototypeFunctionWebkitCancelFullScreenCaller(JSC::ExecState*, WebCore::JSDocument*, JSC::ThrowScope&)), (WebCore::CastedThisErrorBehavior)0>(JSC::ExecState*, char const*)
7   0x10b61ac2c WebCore::jsDocumentPrototypeFunctionWebkitCancelFullScreen(JSC::ExecState*)
8   0x572fcac01028
9   0x107701225 llint_entry
10  0x107701225 llint_entry
11  0x1076f9aee vmEntryToJavaScript
12  0x1074fd34c JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*)
13  0x1074b388f JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&)
14  0x106cb37ee JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&)
15  0x106cb38c9 JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&, WTF::NakedPtr<JSC::Exception>&)
16  0x106cb3acd JSC::profiledCall(JSC::ExecState*, JSC::ProfilingReason, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&, WTF::NakedPtr<JSC::Exception>&)
17  0x10b54cefb WebCore::JSMainThreadExecState::profiledCall(JSC::ExecState*, JSC::ProfilingReason, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&, WTF::NakedPtr<JSC::Exception>&)
18  0x10b7f54c4 WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*)
19  0x10ad0f3cf WebCore::EventTarget::fireEventListeners(WebCore::Event&, WTF::Vector<WTF::RefPtr<WebCore::RegisteredEventListener>, 1ul, WTF::CrashOnOverflow, 16ul>)
20  0x10ad0efbb WebCore::EventTarget::fireEventListeners(WebCore::Event&)
21  0x10c2df921 WebCore::Node::handleLocalEvents(WebCore::Event&)
22  0x10acdd451 WebCore::EventContext::handleLocalEvents(WebCore::Event&) const
23  0x10acde0bf WebCore::dispatchEventInDOM(WebCore::Event&, WebCore::EventPath const&)
24  0x10acddc76 WebCore::EventDispatcher::dispatchEvent(WebCore::Node&, WebCore::Event&)
25  0x10c2df97d WebCore::Node::dispatchEvent(WebCore::Event&)
26  0x10ab2cdbd WebCore::Document::dispatchFullScreenChangeOrErrorEvent(WTF::Deque<WTF::RefPtr<WebCore::Node>, 0ul>&, WTF::AtomicString const&, bool)
27  0x10ab0dfa2 WebCore::Document::fullScreenChangeDelayTimerFired()
28  0x10ab53878 void std::__1::__invoke_void_return_wrapper<void>::__call<std::__1::__bind<void (WebCore::Document::*&)(), WebCore::Document*>&>(std::__1::__bind<void (WebCore::Document::*&)(), WebCore::Document*>&&&)
29  0x10ab5374c std::__1::__function::__func<std::__1::__bind<void (WebCore::Document::*&)(), WebCore::Document*>, std::__1::allocator<std::__1::__bind<void (WebCore::Document::*&)(), WebCore::Document*> >, void ()>::operator()()
30  0x10a4799aa std::__1::function<void ()>::operator()() const
31  0x10a4798bc WebCore::Timer::fired()

https://build.webkit.org/results/Apple%20Sierra%20Debug%20WK2%20(Tests)/r211038%20(1733)/results.html

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