[Webkit-unassigned] [Bug 112775] New: Intermittent assertion failure in WebCore::Document::resumeScheduledTasks()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=112775

           Summary: Intermittent assertion failure in
                    WebCore::Document::resumeScheduledTasks()
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Page Loading
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: beidson at apple.com, abarth at webkit.org,
                    japhet at chromium.org


e.g.
Application Specific Information:
CRASHING TEST: jquery/data.html

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.WebCore                 0x000000010a5be084 WebCore::Document::resumeScheduledTasks() + 84 (Document.cpp:4927)
1   com.apple.WebCore                 0x000000010b496213 WebCore::PageGroupLoadDeferrer::~PageGroupLoadDeferrer() + 163 (PageGroupLoadDeferrer.cpp:67)
2   com.apple.WebCore                 0x000000010b496165 WebCore::PageGroupLoadDeferrer::~PageGroupLoadDeferrer() + 21 (PageGroupLoadDeferrer.cpp:71)
3   com.apple.WebCore                 0x000000010a314d9f WebCore::Chrome::runJavaScriptAlert(WebCore::Frame*, WTF::String const&) + 351 (Chrome.cpp:323)
4   com.apple.WebCore                 0x000000010a76a611 WebCore::DOMWindow::alert(WTF::String const&) + 129 (DOMWindow.cpp:1043)
5   com.apple.WebCore                 0x000000010ae98b15 WebCore::jsDOMWindowPrototypeFunctionAlert(JSC::ExecState*) + 677 (JSDOMWindow.cpp:13138)
6   ???                               0x00005d957ca01045 0 + 102896622374981
7   com.apple.JavaScriptCore          0x00000001092fc2a4 JSC::JITCode::execute(JSC::JSStack*, JSC::ExecState*, JSC::JSGlobalData*) + 84 (JITCode.h:135)
8   com.apple.JavaScriptCore          0x00000001092f954f JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 1519 (Interpreter.cpp:1059)
9   com.apple.JavaScriptCore          0x00000001091015d2 JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 306 (CallData.cpp:40)
10  com.apple.WebCore                 0x000000010ad87e92 WebCore::JSMainThreadExecState::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 146 (JSMainThreadExecState.h:56)
11  com.apple.WebCore                 0x000000010aed8d06 WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*) + 1238 (JSEventListener.cpp:129)
12  com.apple.WebCore                 0x000000010a826b32 WebCore::EventTarget::fireEventListeners(WebCore::Event*, WebCore::EventTargetData*, WTF::Vector<WebCore::RegisteredEventListener, 1ul>&) + 498 (EventTarget.cpp:258)
13  com.apple.WebCore                 0x000000010a82674c WebCore::EventTarget::fireEventListeners(WebCore::Event*) + 380 (EventTarget.cpp:203)
14  com.apple.WebCore                 0x000000010a826597 WebCore::EventTarget::dispatchEvent(WTF::PassRefPtr<WebCore::Event>) + 135 (EventTarget.cpp:155)
15  com.apple.WebCore                 0x000000010a769e99 WebCore::DOMWindow::dispatchMessageEventWithOriginCheck(WebCore::SecurityOrigin*, WTF::PassRefPtr<WebCore::Event>, WTF::PassRefPtr<WebCore::ScriptCallStack>) + 537 (DOMWindow.cpp:900)
16  com.apple.WebCore                 0x000000010a769c39 WebCore::DOMWindow::postMessageTimerFired(WTF::PassOwnPtr<WebCore::PostMessageTimer>) + 393 (DOMWindow.cpp:885)
17  com.apple.WebCore                 0x000000010a778283 WebCore::PostMessageTimer::fired() + 67 (DOMWindow.cpp:141)
18  com.apple.WebCore                 0x000000010bc0144e WebCore::ThreadTimers::sharedTimerFiredInternal() + 302 (ThreadTimers.cpp:132)
19  com.apple.WebCore                 0x000000010bc01169 WebCore::ThreadTimers::sharedTimerFired() + 25 (ThreadTimers.cpp:106)
20  com.apple.WebCore                 0x000000010b93cf43 WebCore::timerFired(__CFRunLoopTimer*, void*) + 67 (SharedTimerMac.mm:166)
21  com.apple.CoreFoundation          0x00007fff93528804 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
22  com.apple.CoreFoundation          0x00007fff9352831d __CFRunLoopDoTimer + 557
23  com.apple.CoreFoundation          0x00007fff9350dad9 __CFRunLoopRun + 1529
24  com.apple.CoreFoundation          0x00007fff9350d0e2 CFRunLoopRunSpecific + 290
25  com.apple.HIToolbox               0x00007fff9aab3eb4 RunCurrentEventLoopInMode + 209
26  com.apple.HIToolbox               0x00007fff9aab3c52 ReceiveNextEventCommon + 356
27  com.apple.HIToolbox               0x00007fff9aab3ae3 BlockUntilNextEventMatchingListInMode + 62
28  com.apple.AppKit                  0x00007fff94455563 _DPSNextEvent + 685

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