[Webkit-unassigned] [Bug 81171] New: Assertion failure in RenderBlock::addChildIgnoringAnonymousColumnBlocks when running fullscreen/full-screen-twice-crash.html causing "crashes" on the Lion Intel Debug WebKit2 test bots

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Mar 14 16:46:38 PDT 2012


https://bugs.webkit.org/show_bug.cgi?id=81171

           Summary: Assertion failure in
                    RenderBlock::addChildIgnoringAnonymousColumnBlocks
                    when running fullscreen/full-screen-twice-crash.html
                    causing "crashes" on the Lion Intel Debug WebKit2 test
                    bots
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
               URL: http://build.webkit.org/results/Lion%20Intel%20Debug%2
                    0(WebKit2%20Tests)/r110764%20(4919)/media/media-captio
                    ns-crash-log.txt
        OS/Version: Unspecified
            Status: NEW
          Keywords: LayoutTestFailure, MakingBotsRed, Regression
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jberlin at webkit.org
                CC: ap at webkit.org, bdakin at apple.com, inferno at chromium.org,
                    timothy_horton at apple.com


http://build.webkit.org/results/Lion%20Intel%20Debug%20(WebKit2%20Tests)/r110764%20(4919)/media/media-captions-crash-log.txt

While the link would imply this is happening when running the media-captions test, that is just NRWT being unable to correctly associate crash logs with the test that is crashing. The crash really comes from running fullscreen/full-screen-twice.html

The assertion was added by http://trac.webkit.org/changeset/108606:

ASSERTION FAILED: beforeChildAnonymousContainer->isTable()

Process:         WebProcess [34206]
Path:            /Volumes/VOLUME/*/WebKit2.framework/WebProcess.app/Contents/MacOS/WebProcess
Identifier:      com.apple.WebProcess
Version:         536+ (536.3+)
Code Type:       X86-64 (Native)
Parent Process:  WebKitTestRunner [34205]

PlugIn Path:       /Volumes/VOLUME/*/WebKitTestRunnerInjectedBundle.bundle/Contents/MacOS/WebKitTestRunnerInjectedBundle
PlugIn Identifier: WebKitTestRunnerInjectedBundle
PlugIn Version:    ??? (???)

Date/Time:       2012-03-14 15:43:55.837 -0700
OS Version:      Mac OS X 10.7.2 (11C74)
Report Version:  9

Crashed Thread:  0  Dispatch queue: com.apple.main-thread

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000000bbadbeef

VM Regions Near 0xbbadbeef:
--> 
    __TEXT                 0000000106d41000-0000000106d42000 [    4K] r-x/rwx SM=COW  /Volumes/VOLUME/*/WebKit2.framework/WebProcess.app/Contents/MacOS/WebProcess

Application Specific Information:
objc[34206]: garbage collection is OFF

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.WebCore                 0x0000000109ab4ad0 WebCore::RenderBlock::addChildIgnoringAnonymousColumnBlocks(WebCore::RenderObject*, WebCore::RenderObject*) + 512 (RenderBlock.cpp:880)
1   com.apple.WebCore                 0x0000000109ab5485 WebCore::RenderBlock::addChildIgnoringContinuation(WebCore::RenderObject*, WebCore::RenderObject*) + 181 (RenderBlock.cpp:998)
2   com.apple.WebCore                 0x0000000109ab53c5 WebCore::RenderBlock::addChild(WebCore::RenderObject*, WebCore::RenderObject*) + 117 (RenderBlock.cpp:990)
3   com.apple.WebCore                 0x00000001099f45aa WebCore::NodeRendererFactory::createRendererIfNeeded() + 826 (NodeRenderingContext.cpp:398)
4   com.apple.WebCore                 0x00000001099d2889 WebCore::Node::createRendererIfNeeded() + 41 (Node.cpp:1428)
5   com.apple.WebCore                 0x0000000108ec1c08 WebCore::Element::attach() + 56 (Element.cpp:953)
6   com.apple.WebCore                 0x0000000108a0a386 WebCore::Node::reattach() + 70 (Node.h:819)
7   com.apple.WebCore                 0x0000000108ec25d1 WebCore::Element::recalcStyle(WebCore::Node::StyleChange) + 705 (Element.cpp:1071)
8   com.apple.WebCore                 0x0000000108ec2d4f WebCore::Element::recalcStyle(WebCore::Node::StyleChange) + 2623 (Element.cpp:1146)
9   com.apple.WebCore                 0x0000000108ec2d4f WebCore::Element::recalcStyle(WebCore::Node::StyleChange) + 2623 (Element.cpp:1146)
10  com.apple.WebCore                 0x0000000108cc8cb2 WebCore::Document::recalcStyle(WebCore::Node::StyleChange) + 1058 (Document.cpp:1617)
11  com.apple.WebCore                 0x0000000108cd7c14 WebCore::Document::webkitWillEnterFullScreenForElement(WebCore::Element*) + 644 (Document.cpp:5119)
12  com.apple.WebKit2                 0x0000000106f71b50 WebKit::WebFullScreenManager::willEnterFullScreen() + 176 (WebFullScreenManager.cpp:113)
13  com.apple.WebKit2                 0x00000001070b2045 WKBundlePageWillEnterFullScreen + 37 (WKBundlePage.cpp:102)
14  WebKitTestRunnerInjectedBundle    0x000000010f51ced3 WTR::InjectedBundlePage::enterFullScreenForElement(OpaqueWKBundlePage const*, OpaqueWKBundleNodeHandle const*) + 99 (InjectedBundlePage.cpp:1107)
15  com.apple.WebKit2                 0x0000000106e04c26 WebKit::InjectedBundlePageFullScreenClient::enterFullScreenForElement(WebKit::WebPage*, WebCore::Element*) + 150 (InjectedBundlePageFullScreenClient.cpp:60)
16  com.apple.WebKit2                 0x0000000106f71748 WebKit::WebFullScreenManager::enterFullScreenForElement(WebCore::Element*) + 248 (WebFullScreenManager.cpp:100)
17  com.apple.WebKit2                 0x0000000106f02939 WebKit::WebChromeClient::enterFullScreenForElement(WebCore::Element*) + 41 (WebChromeClient.cpp:699)
18  com.apple.WebCore                 0x0000000108cd7876 WebCore::Document::requestFullScreenForElement(WebCore::Element*, unsigned short, WebCore::Document::FullScreenCheckType) + 342 (Document.cpp:5077)
19  com.apple.WebCore                 0x0000000108ec5db1 WebCore::Element::webkitRequestFullScreen(unsigned short) + 65 (Element.cpp:1864)
20  com.apple.WebCore                 0x00000001094a2b1b WebCore::jsElementPrototypeFunctionWebkitRequestFullScreen(JSC::ExecState*) + 523 (JSElement.cpp:2094)
21  ???                               0x00005846b3201258 0 + 97060676178520
22  com.apple.JavaScriptCore          0x0000000107e65649 JSC::JITCode::execute(JSC::RegisterFile*, JSC::ExecState*, JSC::JSGlobalData*) + 121 (JITCode.h:127)
23  com.apple.JavaScriptCore          0x0000000107e62108 JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 1752 (Interpreter.cpp:1270)
24  com.apple.JavaScriptCore          0x0000000107d1cd9b JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 315 (CallData.cpp:39)
25  com.apple.WebCore                 0x000000010937ddd3 WebCore::JSMainThreadExecState::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 179 (JSMainThreadExecState.h:56)
26  com.apple.WebCore                 0x00000001094bf89f WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*) + 1407 (JSEventListener.cpp:132)
27  com.apple.WebCore                 0x0000000108f00e99 WebCore::EventTarget::fireEventListeners(WebCore::Event*, WebCore::EventTargetData*, WTF::Vector<WebCore::RegisteredEventListener, 1ul>&) + 393 (EventTarget.cpp:232)
28  com.apple.WebCore                 0x0000000108f00cdb WebCore::EventTarget::fireEventListeners(WebCore::Event*) + 331 (EventTarget.cpp:200)
29  com.apple.WebCore                 0x00000001099d901b WebCore::Node::handleLocalEvents(WebCore::Event*) + 155 (Node.cpp:2727)
30  com.apple.WebCore                 0x0000000108ed34ee WebCore::EventContext::handleLocalEvents(WebCore::Event*) const + 158 (EventContext.cpp:49)
31  com.apple.WebCore                 0x0000000108ed4509 WebCore::EventDispatcher::dispatchEvent(WTF::PassRefPtr<WebCore::Event>) + 1977 (EventDispatcher.cpp:320)
32  com.apple.WebCore                 0x0000000108ed7d8c WebCore::EventDispatchMediator::dispatchEvent(WebCore::EventDispatcher*) const + 76 (EventDispatchMediator.cpp:51)
33  com.apple.WebCore                 0x0000000108ed35fa WebCore::EventDispatcher::dispatchEvent(WebCore::Node*, WTF::PassRefPtr<WebCore::EventDispatchMediator>) + 154 (EventDispatcher.cpp:55)
34  com.apple.WebCore                 0x00000001099d9116 WebCore::Node::dispatchEvent(WTF::PassRefPtr<WebCore::Event>) + 70 (Node.cpp:2742)
35  com.apple.WebCore                 0x0000000108f00a99 WebCore::EventTarget::dispatchEvent(WTF::PassRefPtr<WebCore::Event>, int&) + 233 (EventTarget.cpp:169)
36  com.apple.WebCore                 0x0000000108ee8ca8 WebCore::EventHandler::keyEvent(WebCore::PlatformKeyboardEvent const&) + 2776 (EventHandler.cpp:2787)
37  com.apple.WebKit2                 0x0000000106fb9167 _ZN6WebKitL14handleKeyEventERKNS_16WebKeyboardEventEPN7WebCore4PageE + 295 (WebPage.cpp:1354)
38  com.apple.WebKit2                 0x0000000106fb91f2 WebKit::WebPage::keyEventSyncForTesting(WebKit::WebKeyboardEvent const&, bool&) + 82 (WebPage.cpp:1373)
39  com.apple.WebKit2                 0x0000000106fea77f void CoreIPC::callMemberFunction<WebKit::WebPage, void (WebKit::WebPage::*)(WebKit::WebKeyboardEvent const&, bool&), WebKit::WebKeyboardEvent, bool>(CoreIPC::Arguments1<WebKit::WebKeyboardEvent> const&, CoreIPC::Arguments1<bool>&, WebKit::WebPage*, void (WebKit::WebPage::*)(WebKit::WebKeyboardEvent const&, bool&)) + 143 (HandleMessage.h:94)
40  com.apple.WebKit2                 0x0000000106fe7ac9 void CoreIPC::handleMessage<Messages::WebPage::KeyEventSyncForTesting, WebKit::WebPage, void (WebKit::WebPage::*)(WebKit::WebKeyboardEvent const&, bool&)>(CoreIPC::ArgumentDecoder*, CoreIPC::ArgumentEncoder*, WebKit::WebPage*, void (WebKit::WebPage::*)(WebKit::WebKeyboardEvent const&, bool&)) + 185 (HandleMessage.h:308)
41  com.apple.WebKit2                 0x0000000106fe3bef WebKit::WebPage::didReceiveSyncWebPageMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*, WTF::OwnPtr<CoreIPC::ArgumentEncoder>&) + 255 (WebPageMessageReceiver.cpp:508)
42  com.apple.WebKit2                 0x0000000106fbca39 WebKit::WebPage::didReceiveSyncMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*, WTF::OwnPtr<CoreIPC::ArgumentEncoder>&) + 57 (WebPage.cpp:2478)
43  com.apple.WebKit2                 0x0000000107074d08 WebKit::WebProcess::didReceiveSyncMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*, WTF::OwnPtr<CoreIPC::ArgumentEncoder>&) + 136 (WebProcess.cpp:592)
44  com.apple.WebKit2                 0x0000000106f0a8ed WebKit::WebConnectionToUIProcess::didReceiveSyncMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*, WTF::OwnPtr<CoreIPC::ArgumentEncoder>&) + 93 (WebConnectionToUIProcess.cpp:93)
45  com.apple.WebKit2                 0x0000000106f0a945 non-virtual thunk to WebKit::WebConnectionToUIProcess::didReceiveSyncMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*, WTF::OwnPtr<CoreIPC::ArgumentEncoder>&) + 69
46  com.apple.WebKit2                 0x0000000106da9951 CoreIPC::Connection::dispatchSyncMessage(CoreIPC::MessageID, CoreIPC::ArgumentDecoder*) + 289 (Connection.cpp:650)
47  com.apple.WebKit2                 0x0000000106da6f28 CoreIPC::Connection::dispatchMessage(CoreIPC::Connection::Message<CoreIPC::ArgumentDecoder>&) + 328 (Connection.cpp:690)
48  com.apple.WebKit2                 0x0000000106da6db5 CoreIPC::Connection::SyncMessageState::dispatchMessages() + 277 (Connection.cpp:167)
49  com.apple.WebKit2                 0x0000000106da8b40 CoreIPC::Connection::waitForSyncReply(unsigned long long, double, unsigned int) + 240 (Connection.cpp:446)
50  com.apple.WebKit2                 0x0000000106da88b9 CoreIPC::Connection::sendSyncMessage(CoreIPC::MessageID, unsigned long long, WTF::PassOwnPtr<CoreIPC::ArgumentEncoder>, double, unsigned int) + 777 (Connection.cpp:414)
51  com.apple.WebKit2                 0x0000000106def9a5 bool CoreIPC::Connection::deprecatedSendSync<WebContextLegacyMessage::Kind, CoreIPC::Arguments2<WTF::String const&, WebKit::InjectedBundleUserMessageEncoder const&>, CoreIPC::Arguments1<WebKit::InjectedBundleUserMessageDecoder&> >(WebContextLegacyMessage::Kind, unsigned long long, CoreIPC::Arguments2<WTF::String const&, WebKit::InjectedBundleUserMessageEncoder const&> const&, CoreIPC::Arguments1<WebKit::InjectedBundleUserMessageDecoder&> const&, double) + 325 (Connection.h:417)
52  com.apple.WebKit2                 0x0000000106decc00 WebKit::InjectedBundle::postSynchronousMessage(WTF::String const&, WebKit::APIObject*, WTF::RefPtr<WebKit::APIObject>&) + 288 (InjectedBundle.cpp:98)
53  com.apple.WebKit2                 0x00000001070aee57 WKBundlePostSynchronousMessage + 103 (WKBundle.cpp:55)
54  WebKitTestRunnerInjectedBundle    0x000000010f53a8aa WTR::EventSendingController::keyDown(OpaqueJSString*, OpaqueJSValue const*, int) + 1018 (EventSendingController.cpp:246)
55  WebKitTestRunnerInjectedBundle    0x000000010f53bc10 WTR::JSEventSendingController::keyDown(OpaqueJSContext const*, OpaqueJSValue*, OpaqueJSValue*, unsigned long, OpaqueJSValue const* const*, OpaqueJSValue const**) + 352 (JSEventSendingController.cpp:157)
56  com.apple.JavaScriptCore          0x0000000107ec58b9 JSC::JSCallbackFunction::call(JSC::ExecState*) + 489 (JSCallbackFunction.cpp:74)
57  com.apple.JavaScriptCore          0x0000000108087a91 _ZN3JSC5LLIntL14handleHostCallEPNS_9ExecStateEPNS_11InstructionENS_7JSValueENS_22CodeSpecializationKindE + 289 (LLIntSlowPaths.cpp:1269)
58  com.apple.JavaScriptCore          0x00000001080887fd JSC::LLInt::setUpCall(JSC::ExecState*, JSC::Instruction*, JSC::CodeSpecializationKind, JSC::JSValue, JSC::LLIntCallLinkInfo*) + 93 (LLIntSlowPaths.cpp:1311)
59  com.apple.JavaScriptCore          0x0000000108088787 JSC::LLInt::genericCall(JSC::ExecState*, JSC::Instruction*, JSC::CodeSpecializationKind) + 263 (LLIntSlowPaths.cpp:1367)
60  com.apple.JavaScriptCore          0x0000000108085e0c llint_slow_path_call + 60 (LLIntSlowPaths.cpp:1373)
61  com.apple.JavaScriptCore          0x000000010808cc8b llint_op_call + 153
62  com.apple.JavaScriptCore          0x0000000107e65649 JSC::JITCode::execute(JSC::RegisterFile*, JSC::ExecState*, JSC::JSGlobalData*) + 121 (JITCode.h:127)
63  com.apple.JavaScriptCore          0x0000000107e6167d JSC::Interpreter::execute(JSC::ProgramExecutable*, JSC::ExecState*, JSC::ScopeChainNode*, JSC::JSObject*) + 5373 (Interpreter.cpp:1198)
64  com.apple.JavaScriptCore          0x0000000107d48612 JSC::evaluate(JSC::ExecState*, JSC::ScopeChainNode*, JSC::SourceCode const&, JSC::JSValue, JSC::JSValue*) + 482 (Completion.cpp:73)
65  com.apple.WebCore                 0x00000001095ccdc1 WebCore::JSMainThreadExecState::evaluate(JSC::ExecState*, JSC::ScopeChainNode*, JSC::SourceCode const&, JSC::JSValue, JSC::JSValue*) + 81 (JSMainThreadExecState.h:76)
66  com.apple.WebCore                 0x0000000109d917a9 WebCore::ScriptController::evaluateInWorld(WebCore::ScriptSourceCode const&, WebCore::DOMWrapperWorld*) + 489 (ScriptController.cpp:145)
67  com.apple.WebCore                 0x0000000109d91904 WebCore::ScriptController::evaluate(WebCore::ScriptSourceCode const&) + 68 (ScriptController.cpp:163)
68  com.apple.WebCore                 0x0000000109da9493 WebCore::ScriptElement::executeScript(WebCore::ScriptSourceCode const&) + 483 (ScriptElement.cpp:279)
69  com.apple.WebCore                 0x0000000109da81bd WebCore::ScriptElement::prepareScript(WTF::TextPosition const&, WebCore::ScriptElement::LegacyTypeSupport) + 1837 (ScriptElement.cpp:232)
70  com.apple.WebCore                 0x000000010914cf1b WebCore::HTMLScriptRunner::runScript(WebCore::Element*, WTF::TextPosition const&) + 475 (HTMLScriptRunner.cpp:298)
71  com.apple.WebCore                 0x000000010914cca4 WebCore::HTMLScriptRunner::execute(WTF::PassRefPtr<WebCore::Element>, WTF::TextPosition const&) + 164 (HTMLScriptRunner.cpp:172)
72  com.apple.WebCore                 0x00000001090b8031 WebCore::HTMLDocumentParser::runScriptsForPausedTreeBuilder() + 337 (HTMLDocumentParser.cpp:207)
73  com.apple.WebCore                 0x00000001090b811b WebCore::HTMLDocumentParser::canTakeNextToken(WebCore::HTMLDocumentParser::SynchronousMode, WebCore::PumpSession&) + 171 (HTMLDocumentParser.cpp:225)
74  com.apple.WebCore                 0x00000001090b7930 WebCore::HTMLDocumentParser::pumpTokenizer(WebCore::HTMLDocumentParser::SynchronousMode) + 496 (HTMLDocumentParser.cpp:263)
75  com.apple.WebCore                 0x00000001090b751d WebCore::HTMLDocumentParser::pumpTokenizerIfPossible(WebCore::HTMLDocumentParser::SynchronousMode) + 205 (HTMLDocumentParser.cpp:178)
76  com.apple.WebCore                 0x00000001090b8b04 WebCore::HTMLDocumentParser::resumeParsingAfterScriptExecution() + 260 (HTMLDocumentParser.cpp:476)
77  com.apple.WebCore                 0x00000001090b8f5d WebCore::HTMLDocumentParser::notifyFinished(WebCore::CachedResource*) + 509 (HTMLDocumentParser.cpp:521)
78  com.apple.WebCore                 0x00000001090b8fbf non-virtual thunk to WebCore::HTMLDocumentParser::notifyFinished(WebCore::CachedResource*) + 47
79  com.apple.WebCore                 0x00000001089d271d WebCore::CachedResource::checkNotify() + 109 (CachedResource.cpp:245)
80  com.apple.WebCore                 0x00000001089ebf61 WebCore::CachedScript::data(WTF::PassRefPtr<WebCore::SharedBuffer>, bool) + 193 (CachedScript.cpp:105)
81  com.apple.WebCore                 0x0000000109eb4517 WebCore::SubresourceLoader::didFinishLoading(double) + 615 (SubresourceLoader.cpp:276)
82  com.apple.WebCore                 0x0000000109d4dc76 WebCore::ResourceLoader::didFinishLoading(WebCore::ResourceHandle*, double) + 198 (ResourceLoader.cpp:453)
83  com.apple.WebCore                 0x0000000109d4a4c5 -[WebCoreResourceHandleAsDelegate connectionDidFinishLoading:] + 261 (ResourceHandleMac.mm:887)
84  com.apple.Foundation              0x00007fff84a51712 ___NSURLConnectionDidFinishLoading_block_invoke_1 + 122
85  com.apple.Foundation              0x00007fff84a51692 _NSURLConnectionDidFinishLoading + 81
86  com.apple.CFNetwork               0x00007fff83b58ee2 URLConnectionClient::_clientDidFinishLoading(URLConnectionClient::ClientConnectionEventQueue*) + 296
87  com.apple.CFNetwork               0x00007fff83c08d0e URLConnectionClient::ClientConnectionEventQueue::processAllEventsAndConsumePayload(XConnectionEventInfo<XClientEvent, XClientEventParams>*, long) + 862
88  com.apple.CFNetwork               0x00007fff83c08efa URLConnectionClient::ClientConnectionEventQueue::processAllEventsAndConsumePayload(XConnectionEventInfo<XClientEvent, XClientEventParams>*, long) + 1354
89  com.apple.CFNetwork               0x00007fff83c08efa URLConnectionClient::ClientConnectionEventQueue::processAllEventsAndConsumePayload(XConnectionEventInfo<XClientEvent, XClientEventParams>*, long) + 1354
90  com.apple.CFNetwork               0x00007fff83b33dfd URLConnectionClient::processEvents() + 185
91  com.apple.CFNetwork               0x00007fff83b33ca2 MultiplexerSource::perform() + 212
92  com.apple.CoreFoundation          0x00007fff84d84b51 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
93  com.apple.CoreFoundation          0x00007fff84d843bd __CFRunLoopDoSources0 + 253
94  com.apple.CoreFoundation          0x00007fff84dab1a9 __CFRunLoopRun + 905
95  com.apple.CoreFoundation          0x00007fff84daaae6 CFRunLoopRunSpecific + 230
96  com.apple.HIToolbox               0x00007fff897253d3 RunCurrentEventLoopInMode + 277
97  com.apple.HIToolbox               0x00007fff8972c63d ReceiveNextEventCommon + 355
98  com.apple.HIToolbox               0x00007fff8972c4ca BlockUntilNextEventMatchingListInMode + 62
99  com.apple.AppKit                  0x00007fff8cb3e3f1 _DPSNextEvent + 659
100 com.apple.AppKit                  0x00007fff8cb3dcf5 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 135
101 com.apple.AppKit                  0x00007fff8cb3a62d -[NSApplication run] + 470
102 com.apple.WebCore                 0x0000000109d73b8c WebCore::RunLoop::run() + 92 (RunLoopMac.mm:101)
103 com.apple.WebKit2                 0x000000010708bee4 WebKit::WebProcessMain(WebKit::CommandLine const&) + 3556 (WebProcessMainMac.mm:176)
104 com.apple.WebKit2                 0x0000000106f9776f _ZL10WebKitMainRKN6WebKit11CommandLineE + 239 (WebKitMain.cpp:50)
105 com.apple.WebKit2                 0x0000000106f97652 WebKitMain + 178 (WebKitMain.cpp:74)
106 com.apple.WebProcess              0x0000000106d41d82 main + 290
107 com.apple.WebProcess              0x0000000106d41c54 start + 52

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