[Webkit-unassigned] [Bug 79419] New: [WinCairo] Assertion (is8ByteAligned) in JSC::CopiedSpace::getFreshBlock

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=79419

           Summary: [WinCairo] Assertion (is8ByteAligned) in
                    JSC::CopiedSpace::getFreshBlock
           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: bfulgham at webkit.org


I'm getting an assertion when attempting to run the WinLauncher test application:


     ntdll.dll!_ZwRaiseException at 12()  + 0x12 bytes    
     ntdll.dll!_ZwRaiseException at 12()  + 0x12 bytes    
>	JavaScriptCore.dll!JSC::CopiedSpace::getFreshBlock(JSC::AllocationEffort allocationEffort=AllocationMustSucceed, JSC::CopiedBlock * * outBlock=0x003ef104)  Line 259 + 0x3c bytes	C++
     JavaScriptCore.dll!JSC::CopiedSpace::getFreshBlock(JSC::AllocationEffort allocationEffort=AllocationCanFail, JSC::CopiedBlock * * outBlock=0x003ef14c)  Line 252 + 0x12 bytes    C++
     JavaScriptCore.dll!JSC::CopiedSpace::addNewBlock()  Line 103 + 0x12 bytes    C++
     JavaScriptCore.dll!JSC::CopiedSpace::init()  Line 51 + 0xc bytes    C++
     JavaScriptCore.dll!JSC::Heap::Heap(JSC::JSGlobalData * globalData=0x00b5bfd0, JSC::HeapSize heapSize=LargeHeap)  Line 338    C++
     JavaScriptCore.dll!JSC::JSGlobalData::JSGlobalData(JSC::JSGlobalData::GlobalDataType globalDataType=Default, JSC::ThreadStackType threadStackType=ThreadStackTypeLarge, JSC::HeapSize heapSize=LargeHeap)  Line 167 + 0x707 bytes    C++
     JavaScriptCore.dll!JSC::JSGlobalData::create(JSC::ThreadStackType type=ThreadStackTypeLarge, JSC::HeapSize heapSize=LargeHeap)  Line 331 + 0x28 bytes    C++
     JavaScriptCore.dll!JSC::JSGlobalData::createLeaked(JSC::ThreadStackType type=ThreadStackTypeLarge, JSC::HeapSize heapSize=LargeHeap)  Line 336 + 0x11 bytes    C++
     WebKit.dll!WebCore::JSDOMWindowBase::commonJSGlobalData()  Line 199 + 0xd bytes    C++
     WebKit.dll!WebCore::ScriptController::getAllWorlds(WTF::Vector<WebCore::DOMWrapperWorld *,0> & worlds={...})  Line 172 + 0x9 bytes    C++
     WebKit.dll!WebCore::FrameLoader::dispatchDidClearWindowObjectsInAllWorlds()  Line 3221 + 0x9 bytes    C++
     WebKit.dll!WebCore::FrameLoader::receivedFirstData()  Line 588    C++
     WebKit.dll!WebCore::FrameLoader::willSetEncoding()  Line 987    C++
     WebKit.dll!WebCore::DocumentWriter::setEncoding(const WTF::String & name={...}, bool userChosen=false)  Line 240    C++
     WebKit.dll!WebCore::DocumentLoader::commitData(const char * bytes=0x00b4b140, unsigned int length=0x00000202)  Line 326    C++
     WebKit.dll!WebFrameLoaderClient::committedLoad(WebCore::DocumentLoader * loader=0x00b54fd8, const char * data=0x00b4b140, int length=0x00000202)  Line 505    C++
     WebKit.dll!WebCore::DocumentLoader::commitLoad(const char * data=0x00b4b140, int length=0x00000202)  Line 313 + 0x29 bytes    C++
     WebKit.dll!WebCore::DocumentLoader::receivedData(const char * data=0x00b4b140, int length=0x00000202)  Line 340    C++
     WebKit.dll!WebCore::MainResourceLoader::addData(const char * data=0x00b4b140, int length=0x00000202, bool allAtOnce=true)  Line 171    C++
     WebKit.dll!WebCore::ResourceLoader::didReceiveData(const char * data=0x00b4b140, int length=0x00000202, __int64 encodedDataLength=0x0000000000000202, bool allAtOnce=true)  Line 287 + 0x1b bytes    C++
     WebKit.dll!WebCore::MainResourceLoader::didReceiveData(const char * data=0x00b4b140, int length=0x00000202, __int64 encodedDataLength=0x0000000000000202, bool allAtOnce=true)  Line 465    C++
     WebKit.dll!WebCore::MainResourceLoader::continueAfterContentPolicy(WebCore::PolicyAction contentPolicy=PolicyUse, const WebCore::ResourceResponse & r={...})  Line 320 + 0x56 bytes    C++
     WebKit.dll!WebCore::MainResourceLoader::continueAfterContentPolicy(WebCore::PolicyAction policy=PolicyUse)  Line 339    C++
     WebKit.dll!WebCore::MainResourceLoader::callContinueAfterContentPolicy(void * argument=0x00b55b88, WebCore::PolicyAction policy=PolicyUse)  Line 331    C++
     WebKit.dll!WebCore::MainResourceLoader::didReceiveResponse(const WebCore::ResourceResponse & r={...})  Line 418 + 0xb bytes    C++
     WebKit.dll!WebCore::MainResourceLoader::handleDataLoadNow(WebCore::Timer<WebCore::MainResourceLoader> * __formal=0x00b56020)  Line 529 + 0x16 bytes    C++
     WebKit.dll!WebCore::Timer<WebCore::MainResourceLoader>::fired()  Line 100 + 0x29 bytes    C++
     WebKit.dll!WebCore::ThreadTimers::sharedTimerFiredInternal()  Line 115 + 0xf bytes    C++
     WebKit.dll!WebCore::ThreadTimers::sharedTimerFired()  Line 94    C++
     WebKit.dll!WebCore::TimerWindowWndProc(HWND__ * hWnd=0x000305d4, unsigned int message=0x0000c209, unsigned int wParam=0x00000000, long lParam=0x00000000)  Line 103 + 0x8 bytes    C++
     user32.dll!_InternalCallWinProc at 20()  + 0x23 bytes    
     user32.dll!_UserCallWinProcCheckWow at 32()  + 0xb7 bytes    
     user32.dll!_DispatchMessageWorker at 8()  + 0xed bytes    
     user32.dll!_DispatchMessageW at 4()  + 0xf bytes    
     WinLauncher.dll!dllLauncherEntryPoint(HINSTANCE__ * __formal=0x011e0000, HINSTANCE__ * __formal=0x011e0000, HINSTANCE__ * __formal=0x011e0000, int nCmdShow=0x00000001)  Line 382 + 0xc bytes    C++
     WinLauncher.exe!wWinMain(HINSTANCE__ * hInstance=0x011e0000, HINSTANCE__ * hPrevInstance=0x00000000, wchar_t * lpstrCmdLine=0x004b349e, int nCmdShow=0x00000001)  Line 200 + 0x18 bytes    C++
     WinLauncher.exe!__tmainCRTStartup()  Line 589 + 0x1c bytes    C
     kernel32.dll!@BaseThreadInitThunk at 12()  + 0x12 bytes

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