55467 2011-03-01 07:31:52 -0800 [Qt] crash in QtWebKitd4.dll!WebCore::Document::~Document() Line 525 C++ 2011-03-01 07:41:51 -0800 1 1 1 Unclassified WebKit Layout and Rendering 528+ (Nightly build) PC Windows XP RESOLVED DUPLICATE 49216 Qt, QtTriaged P1 Normal --- 0 stawel webkit-unassigned benjamin kling oldest_to_newest 359879 0 stawel 2011-03-01 07:31:52 -0800 Hi, I'm getting a crash in ~Document() destructor. It's the Qt4.7.1 version of webkit. I have previously reported this problem: https://bugs.webkit.org/show_bug.cgi?id=43553 now I found the time to look at this. the crash is deterministic. I'm attaching a test project which reproduce the crash. the problem seems to be that, in: Document::Document(Frame* frame, bool isXHTML, bool isHTML) { .... m_docLoader = new DocLoader(this); .... } and the m_docLoader is deleted i the destructor Document (~Document). The DocLoader destructor (~DocLoader) runs occasionally "Loader::Host::didFail" which looks like this: void Loader::Host::didFail(SubresourceLoader* loader, bool cancelled) { ... DocLoader* docLoader = request->docLoader(); // Prevent the document from being destroyed before we are done with // the docLoader that it will delete when the document gets deleted. RefPtr<Document> protector(docLoader->doc()); ... } Best Regards Paweł callstack: QtWebKitd4.dll!WTF::ListHashSet<WebCore::CachedResource *,256,WTF::PtrHash<WebCore::CachedResource *> >::begin() Line 421 + 0x3 bytes C++ QtWebKitd4.dll!WebCore::DocLoader::clearPreloads() Line 432 + 0x16 bytes C++ QtWebKitd4.dll!WebCore::DocLoader::~DocLoader() Line 69 C++ QtWebKitd4.dll!WebCore::DocLoader::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WTF::deleteOwnedPtr<WebCore::DocLoader>(WebCore::DocLoader * ptr=0x04ba1fa0) Line 55 + 0x1c bytes C++ QtWebKitd4.dll!WTF::OwnPtr<WebCore::DocLoader>::clear() Line 60 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Document::~Document() Line 525 C++ QtWebKitd4.dll!WebCore::Document::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WebCore::Document::removedLastRef() Line 500 + 0x24 bytes C++ QtWebKitd4.dll!WebCore::TreeShared<WebCore::Node>::deref() Line 71 C++ QtWebKitd4.dll!WTF::derefIfNotNull<WebCore::Document>(WebCore::Document * ptr=0x04b902a8) Line 54 C++ QtWebKitd4.dll!WTF::RefPtr<WebCore::Document>::~RefPtr<WebCore::Document>() Line 54 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Loader::Host::didFail(WebCore::SubresourceLoader * loader=0x04b93ea8, bool cancelled=true) Line 459 + 0xc bytes C++ QtWebKitd4.dll!WebCore::Loader::Host::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 588 C++ QtWebKitd4.dll!WebCore::Loader::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 254 C++ QtWebKitd4.dll!WebCore::DocLoader::~DocLoader() Line 68 C++ QtWebKitd4.dll!WebCore::DocLoader::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WTF::deleteOwnedPtr<WebCore::DocLoader>(WebCore::DocLoader * ptr=0x04ba1fa0) Line 55 + 0x1c bytes C++ QtWebKitd4.dll!WTF::OwnPtr<WebCore::DocLoader>::clear() Line 60 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Document::~Document() Line 525 C++ QtWebKitd4.dll!WebCore::Document::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WebCore::Document::removedLastRef() Line 500 + 0x24 bytes C++ QtWebKitd4.dll!WebCore::TreeShared<WebCore::Node>::deref() Line 71 C++ QtWebKitd4.dll!WTF::derefIfNotNull<WebCore::Document>(WebCore::Document * ptr=0x04b902a8) Line 54 C++ QtWebKitd4.dll!WTF::RefPtr<WebCore::Document>::~RefPtr<WebCore::Document>() Line 54 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Loader::Host::didFail(WebCore::SubresourceLoader * loader=0x04ba01b0, bool cancelled=true) Line 459 + 0xc bytes C++ QtWebKitd4.dll!WebCore::Loader::Host::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 588 C++ QtWebKitd4.dll!WebCore::Loader::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 254 C++ QtWebKitd4.dll!WebCore::DocLoader::~DocLoader() Line 68 C++ QtWebKitd4.dll!WebCore::DocLoader::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WTF::deleteOwnedPtr<WebCore::DocLoader>(WebCore::DocLoader * ptr=0x04ba1fa0) Line 55 + 0x1c bytes C++ QtWebKitd4.dll!WTF::OwnPtr<WebCore::DocLoader>::clear() Line 60 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Document::~Document() Line 525 C++ QtWebKitd4.dll!WebCore::Document::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WebCore::Document::removedLastRef() Line 500 + 0x24 bytes C++ QtWebKitd4.dll!WebCore::TreeShared<WebCore::Node>::deref() Line 71 C++ QtWebKitd4.dll!WTF::derefIfNotNull<WebCore::Document>(WebCore::Document * ptr=0x04b902a8) Line 54 C++ QtWebKitd4.dll!WTF::RefPtr<WebCore::Document>::~RefPtr<WebCore::Document>() Line 54 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Loader::Host::didFail(WebCore::SubresourceLoader * loader=0x0314b740, bool cancelled=true) Line 459 + 0xc bytes C++ QtWebKitd4.dll!WebCore::Loader::Host::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 588 C++ QtWebKitd4.dll!WebCore::Loader::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 254 C++ QtWebKitd4.dll!WebCore::DocLoader::~DocLoader() Line 68 C++ QtWebKitd4.dll!WebCore::DocLoader::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WTF::deleteOwnedPtr<WebCore::DocLoader>(WebCore::DocLoader * ptr=0x04ba1fa0) Line 55 + 0x1c bytes C++ QtWebKitd4.dll!WTF::OwnPtr<WebCore::DocLoader>::clear() Line 60 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Document::~Document() Line 525 C++ QtWebKitd4.dll!WebCore::Document::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WebCore::Document::removedLastRef() Line 500 + 0x24 bytes C++ QtWebKitd4.dll!WebCore::TreeShared<WebCore::Node>::deref() Line 71 C++ QtWebKitd4.dll!WTF::derefIfNotNull<WebCore::Document>(WebCore::Document * ptr=0x04b902a8) Line 54 C++ QtWebKitd4.dll!WTF::RefPtr<WebCore::Document>::~RefPtr<WebCore::Document>() Line 54 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Loader::Host::didFail(WebCore::SubresourceLoader * loader=0x0315e248, bool cancelled=true) Line 459 + 0xc bytes C++ QtWebKitd4.dll!WebCore::Loader::Host::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 588 C++ QtWebKitd4.dll!WebCore::Loader::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 254 C++ QtWebKitd4.dll!WebCore::DocLoader::~DocLoader() Line 68 C++ QtWebKitd4.dll!WebCore::DocLoader::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WTF::deleteOwnedPtr<WebCore::DocLoader>(WebCore::DocLoader * ptr=0x04ba1fa0) Line 55 + 0x1c bytes C++ QtWebKitd4.dll!WTF::OwnPtr<WebCore::DocLoader>::clear() Line 60 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Document::~Document() Line 525 C++ QtWebKitd4.dll!WebCore::Document::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WebCore::Document::removedLastRef() Line 500 + 0x24 bytes C++ QtWebKitd4.dll!WebCore::TreeShared<WebCore::Node>::deref() Line 71 C++ QtWebKitd4.dll!WTF::derefIfNotNull<WebCore::Document>(WebCore::Document * ptr=0x04b902a8) Line 54 C++ QtWebKitd4.dll!WTF::RefPtr<WebCore::Document>::~RefPtr<WebCore::Document>() Line 54 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Loader::Host::didFail(WebCore::SubresourceLoader * loader=0x03134a20, bool cancelled=true) Line 459 + 0xc bytes C++ QtWebKitd4.dll!WebCore::Loader::Host::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 588 C++ QtWebKitd4.dll!WebCore::Loader::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 254 C++ QtWebKitd4.dll!WebCore::DocLoader::~DocLoader() Line 68 C++ QtWebKitd4.dll!WebCore::DocLoader::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WTF::deleteOwnedPtr<WebCore::DocLoader>(WebCore::DocLoader * ptr=0x04ba1fa0) Line 55 + 0x1c bytes C++ QtWebKitd4.dll!WTF::OwnPtr<WebCore::DocLoader>::clear() Line 60 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Document::~Document() Line 525 C++ QtWebKitd4.dll!WebCore::Document::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WebCore::Document::removedLastRef() Line 500 + 0x24 bytes C++ QtWebKitd4.dll!WebCore::TreeShared<WebCore::Node>::deref() Line 71 C++ QtWebKitd4.dll!WTF::derefIfNotNull<WebCore::Document>(WebCore::Document * ptr=0x04b902a8) Line 54 C++ QtWebKitd4.dll!WTF::RefPtr<WebCore::Document>::~RefPtr<WebCore::Document>() Line 54 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Loader::Host::didFail(WebCore::SubresourceLoader * loader=0x0314ff08, bool cancelled=true) Line 459 + 0xc bytes C++ QtWebKitd4.dll!WebCore::Loader::Host::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 588 C++ QtWebKitd4.dll!WebCore::Loader::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 254 C++ QtWebKitd4.dll!WebCore::DocLoader::~DocLoader() Line 68 C++ QtWebKitd4.dll!WebCore::DocLoader::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WTF::deleteOwnedPtr<WebCore::DocLoader>(WebCore::DocLoader * ptr=0x04ba1fa0) Line 55 + 0x1c bytes C++ QtWebKitd4.dll!WTF::OwnPtr<WebCore::DocLoader>::clear() Line 60 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Document::~Document() Line 525 C++ QtWebKitd4.dll!WebCore::Document::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WebCore::Document::removedLastRef() Line 500 + 0x24 bytes C++ QtWebKitd4.dll!WebCore::TreeShared<WebCore::Node>::deref() Line 71 C++ QtWebKitd4.dll!WTF::derefIfNotNull<WebCore::Document>(WebCore::Document * ptr=0x04b902a8) Line 54 C++ QtWebKitd4.dll!WTF::RefPtr<WebCore::Document>::~RefPtr<WebCore::Document>() Line 54 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Loader::Host::didFail(WebCore::SubresourceLoader * loader=0x04b9cd88, bool cancelled=true) Line 459 + 0xc bytes C++ QtWebKitd4.dll!WebCore::Loader::Host::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 588 C++ QtWebKitd4.dll!WebCore::Loader::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 254 C++ QtWebKitd4.dll!WebCore::DocLoader::~DocLoader() Line 68 C++ QtWebKitd4.dll!WebCore::DocLoader::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WTF::deleteOwnedPtr<WebCore::DocLoader>(WebCore::DocLoader * ptr=0x04ba1fa0) Line 55 + 0x1c bytes C++ QtWebKitd4.dll!WTF::OwnPtr<WebCore::DocLoader>::clear() Line 60 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Document::~Document() Line 525 C++ QtWebKitd4.dll!WebCore::Document::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WebCore::Document::removedLastRef() Line 500 + 0x24 bytes C++ QtWebKitd4.dll!WebCore::TreeShared<WebCore::Node>::deref() Line 71 C++ QtWebKitd4.dll!WTF::derefIfNotNull<WebCore::Document>(WebCore::Document * ptr=0x04b902a8) Line 54 C++ QtWebKitd4.dll!WTF::RefPtr<WebCore::Document>::~RefPtr<WebCore::Document>() Line 54 + 0x12 bytes C++ > QtWebKitd4.dll!WebCore::Loader::Host::didFail(WebCore::SubresourceLoader * loader=0x04b989b0, bool cancelled=true) Line 459 + 0xc bytes C++ QtWebKitd4.dll!WebCore::Loader::Host::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 588 C++ QtWebKitd4.dll!WebCore::Loader::cancelRequests(WebCore::DocLoader * docLoader=0x04ba1fa0) Line 254 C++ QtWebKitd4.dll!WebCore::DocLoader::~DocLoader() Line 68 C++ QtWebKitd4.dll!WebCore::DocLoader::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WTF::deleteOwnedPtr<WebCore::DocLoader>(WebCore::DocLoader * ptr=0x04ba1fa0) Line 55 + 0x1c bytes C++ QtWebKitd4.dll!WTF::OwnPtr<WebCore::DocLoader>::clear() Line 60 + 0x12 bytes C++ QtWebKitd4.dll!WebCore::Document::~Document() Line 525 C++ QtWebKitd4.dll!WebCore::HTMLDocument::~HTMLDocument() Line 91 + 0x56 bytes C++ QtWebKitd4.dll!WebCore::HTMLDocument::`scalar deleting destructor'() + 0xf bytes C++ QtWebKitd4.dll!WebCore::Document::selfOnlyDeref() Line 217 + 0x21 bytes C++ QtWebKitd4.dll!WebCore::Document::removedLastRef() Line 496 C++ QtWebKitd4.dll!WebCore::TreeShared<WebCore::Node>::deref() Line 71 C++ QtWebKitd4.dll!WTF::derefIfNotNull<WebCore::Document>(WebCore::Document * ptr=0x04b902a8) Line 54 C++ QtWebKitd4.dll!WTF::RefPtr<WebCore::Document>::operator=(const WTF::PassRefPtr<WebCore::Document> & o={...}) Line 131 + 0x9 bytes C++ QtWebKitd4.dll!WebCore::Frame::setDocument(WTF::PassRefPtr<WebCore::Document> newDoc={...}) Line 293 C++ QtWebKitd4.dll!WebCore::FrameLoader::clear(bool clearWindowProperties=true, bool clearScriptObjects=true, bool clearFrameView=true) Line 735 C++ QtWebKitd4.dll!WebCore::FrameLoader::begin(const WebCore::KURL & url={...}, bool dispatch=true, WebCore::SecurityOrigin * origin=0x00000000) Line 821 C++ QtWebKitd4.dll!QWebFrame::setUrl(const QUrl & url={...}) Line 803 + 0x4d bytes C++ QtWebKitd4.dll!QWebView::setUrl(const QUrl & url={...}) Line 546 C++ test.exe!Widget::on_pushButton_clicked() Line 42 + 0x23 bytes C++ test.exe!Widget::qt_metacall(QMetaObject::Call _c=InvokeMetaMethod, int _id=0, void * * _a=0x0012cde0) Line 77 + 0x8 bytes C++ QtCored4.dll!QMetaObject::metacall(QObject * object=0x0012febc, QMetaObject::Call cl=InvokeMetaMethod, int idx=27, void * * argv=0x0012cde0) Line 238 C++ QtCored4.dll!QMetaObject::activate(QObject * sender=0x030d0c40, const QMetaObject * m=0x65aabad0, int local_signal_index=2, void * * argv=0x0012cde0) Line 3272 + 0x27 bytes C++ QtGuid4.dll!QAbstractButton::clicked(bool _t1=false) Line 204 + 0x15 bytes C++ QtGuid4.dll!QAbstractButtonPrivate::emitClicked() Line 548 C++ QtGuid4.dll!QAbstractButtonPrivate::click() Line 540 C++ QtGuid4.dll!QAbstractButton::mouseReleaseEvent(QMouseEvent * e=0x0012d6dc) Line 1122 C++ QtGuid4.dll!QWidget::event(QEvent * event=0x0012d6dc) Line 8201 C++ QtGuid4.dll!QAbstractButton::event(QEvent * e=0x0012d6dc) Line 1081 C++ QtGuid4.dll!QPushButton::event(QEvent * e=0x0012d6dc) Line 684 C++ QtGuid4.dll!QApplicationPrivate::notify_helper(QObject * receiver=0x030d0c40, QEvent * e=0x0012d6dc) Line 4445 + 0x11 bytes C++ QtGuid4.dll!QApplication::notify(QObject * receiver=0x030d0c40, QEvent * e=0x0012d6dc) Line 4006 + 0x2f bytes C++ QtCored4.dll!QCoreApplication::notifyInternal(QObject * receiver=0x030d0c40, QEvent * event=0x0012d6dc) Line 732 + 0x15 bytes C++ QtCored4.dll!QCoreApplication::sendSpontaneousEvent(QObject * receiver=0x030d0c40, QEvent * event=0x0012d6dc) Line 218 + 0x38 bytes C++ QtGuid4.dll!QApplicationPrivate::sendMouseEvent(QWidget * receiver=0x030d0c40, QMouseEvent * event=0x0012d6dc, QWidget * alienWidget=0x030d0c40, QWidget * nativeWidget=0x0012febc, QWidget * * buttonDown=0x65cd7aa4, QPointer<QWidget> & lastMouseReceiver={...}, bool spontaneous=true) Line 3103 + 0xe bytes C++ QtGuid4.dll!QETWidget::translateMouseEvent(const tagMSG & msg={...}) Line 3321 + 0x2a bytes C++ QtGuid4.dll!QtWndProc(HWND__ * hwnd=0x001715b4, unsigned int message=514, unsigned int wParam=0, long lParam=14418057) Line 1659 + 0xc bytes C++ user32.dll!_InternalCallWinProc@20() + 0x28 bytes user32.dll!_UserCallWinProcCheckWow@32() + 0xc8 bytes user32.dll!_DispatchMessageWorker@8() + 0xe9 bytes user32.dll!_DispatchMessageW@4() + 0xf bytes QtCored4.dll!QEventDispatcherWin32::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag> flags={...}) Line 807 C++ QtGuid4.dll!QGuiEventDispatcherWin32::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag> flags={...}) Line 1170 + 0x15 bytes C++ QtCored4.dll!QEventLoop::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag> flags={...}) Line 150 C++ QtCored4.dll!QEventLoop::exec(QFlags<enum QEventLoop::ProcessEventsFlag> flags={...}) Line 201 + 0x2d bytes C++ QtCored4.dll!QCoreApplication::exec() Line 1009 + 0x15 bytes C++ QtGuid4.dll!QApplication::exec() Line 3720 C++ test.exe!main(int argc=1, char * * argv=0x02f58788) Line 10 + 0x6 bytes C++ test.exe!WinMain(HINSTANCE__ * instance=0x00400000, HINSTANCE__ * prevInstance=0x00000000, char * __formal=0x002220cf, int cmdShow=1) Line 131 + 0x12 bytes C++ test.exe!__tmainCRTStartup() Line 589 + 0x35 bytes C test.exe!WinMainCRTStartup() Line 414 C kernel32.dll!_BaseProcessStart@4() + 0x28 bytes output: First-chance exception at 0x00a61a9a (QtWebKitd4.dll) in test.exe: 0xC0000005: Access violation reading location 0xfeeeff02. 359881 1 benjamin 2011-03-01 07:35:40 -0800 You forgot to attach the test case. 359884 2 84230 stawel 2011-03-01 07:38:20 -0800 Created attachment 84230 SimpleWebViewApp test case 359887 3 kling 2011-03-01 07:41:51 -0800 Fixed this a couple of days ago. :) *** This bug has been marked as a duplicate of bug 49216 *** 84230 2011-03-01 07:38:20 -0800 2011-03-01 07:38:20 -0800 SimpleWebViewApp test case SimpleWebViewApp2.zip application/zip 3615 stawel UEsDBBQAAAAAAFCEYT4AAAAAAAAAAAAAAAASAAAAU2ltcGxlV2ViVmlld0FwcDIvUEsDBBQAAAAI AEt4aj2dpPBvUgAAAIMAAAAcAAAAU2ltcGxlV2ViVmlld0FwcDIvaW5kZXguaHRtbE3NwQnAMAgF 0HuhO7hBFpCce+8ECZEmYGgOQun2tWIgnlT+U6zSOe4baGGlVLy3WZowxbP1wQSHBmGkizDYfqKw KMx3eZcLTh/KJqfwlNL/+QdQSwMEFAAAAAgA1VZqPTgmnEmHAAAAtQAAABoAAABTaW1wbGVXZWJW aWV3QXBwMi9tYWluLmNwcE2MwQrCMBBE7wv7D0u9pCLxAxTBk+eePIiHkIZmoaYlJkYQ/92kEXFP szNvZsVOj7E3tO/CKfK2O87zyFoFntwB4Rc3ifvBBGkbBAR2gW6KnShC+UFvSFvlaZ3143JtEV4I lO9/jpSoaIHaXQXOyyyl75vk3U5JlLQa3oToc1Wap9GL/0b4AFBLAwQUAAAACAC7e2o9cqBPrbsA 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