Bug 334731

Application: konqueror (4.12.4)
KDE Platform Version: 4.12.5
Qt Version: 4.8.6
Operating System: Linux 3.14.3-200.fc20.i686+PAE i686
Distribution (Platform): Fedora RPMs

-- Information about the crash:
Carshes when simply trying to navigate to a bookmark that has  worked in the past and still works.  This is an annoying recurring problem with Konqueror, and appears to qualify this application as a QPOS.
Hopefully, Firefox will work well with Linux, as I hate the thought of having to stomach Windows again.

The crash can be reproduced every time.

-- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
Using host libthread_db library "/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0xb77a3a80 (LWP 1549))]

Thread 3 (Thread 0xb4d45b40 (LWP 1550)):
#0  0x46cb0cba in g_mutex_get_impl () from /lib/libglib-2.0.so.0
#1  0x46cb1029 in g_mutex_unlock () from /lib/libglib-2.0.so.0
#2  0x46c6adaa in g_main_context_prepare () from /lib/libglib-2.0.so.0
#3  0x46c6b787 in g_main_context_iterate.isra.23 () from /lib/libglib-2.0.so.0
#4  0x46c6b9e9 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#5  0x4509428f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQtCore.so.4
#6  0x45060ea0 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQtCore.so.4
#7  0x45061231 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQtCore.so.4
#8  0x44f420e5 in QThread::exec() () from /lib/libQtCore.so.4
#9  0x44f4224c in QThread::run() () from /lib/libQtCore.so.4
#10 0x44f44beb in QThreadPrivate::start(void*) () from /lib/libQtCore.so.4
#11 0x4682fd8a in start_thread () from /lib/libpthread.so.0
#12 0x46759a0e in clone () from /lib/libc.so.6

Thread 2 (Thread 0xb3dceb40 (LWP 1551)):
#0  0xb77d4424 in __kernel_vsyscall ()
#1  0x468337ac in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x4cf00c44 in WTF::ThreadCondition::wait(WTF::Mutex&) () from /lib/sse2/libQtWebKit.so.4
#3  0x4cbc78dc in JSC::BlockAllocator::blockFreeingThreadMain() () from /lib/sse2/libQtWebKit.so.4
#4  0x4cee3139 in WTF::threadEntryPoint(void*) () from /lib/sse2/libQtWebKit.so.4
#5  0x4cf0056a in WTF::wtfThreadEntryPoint(void*) () from /lib/sse2/libQtWebKit.so.4
#6  0x4682fd8a in start_thread () from /lib/libpthread.so.0
#7  0x46759a0e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb77a3a80 (LWP 1549)):
[KCrash Handler]
#6  0x4c4a3026 in WebCore::WebGLRenderingContext::initVertexAttrib0() () from /lib/sse2/libQtWebKit.so.4
#7  0x4c4ab765 in WebCore::WebGLRenderingContext::initializeNewContext() () from /lib/sse2/libQtWebKit.so.4
#8  0x4c4abc6e in WebCore::WebGLRenderingContext::WebGLRenderingContext(WebCore::HTMLCanvasElement*, WTF::PassRefPtr<WebCore::GraphicsContext3D>, WebCore::GraphicsContext3D::Attributes) () from /lib/sse2/libQtWebKit.so.4
#9  0x4c4ac25a in WebCore::WebGLRenderingContext::create(WebCore::HTMLCanvasElement*, WebCore::WebGLContextAttributes*) () from /lib/sse2/libQtWebKit.so.4
#10 0x4bc25afc in WebCore::HTMLCanvasElement::getContext(WTF::String const&, WebCore::CanvasContextAttributes*) () from /lib/sse2/libQtWebKit.so.4
#11 0x4b8a4b9a in WebCore::JSHTMLCanvasElement::getContext(JSC::ExecState*) () from /lib/sse2/libQtWebKit.so.4
#12 0x4c6f67de in WebCore::jsHTMLCanvasElementPrototypeFunctionGetContext(JSC::ExecState*) () from /lib/sse2/libQtWebKit.so.4
#13 0xb439134f in ?? ()
#14 0x4ccbb9e7 in JSC::Interpreter::execute(JSC::ProgramExecutable*, JSC::ExecState*, JSC::JSObject*) () from /lib/sse2/libQtWebKit.so.4
#15 0x4cdd06e3 in JSC::evaluate(JSC::ExecState*, JSC::SourceCode const&, JSC::JSValue, JSC::JSValue*) () from /lib/sse2/libQtWebKit.so.4
#16 0x4b8d8d74 in WebCore::ScriptController::evaluateInWorld(WebCore::ScriptSourceCode const&, WebCore::DOMWrapperWorld*) () from /lib/sse2/libQtWebKit.so.4
#17 0x4b8d90d6 in WebCore::ScriptController::evaluate(WebCore::ScriptSourceCode const&) () from /lib/sse2/libQtWebKit.so.4
#18 0x4bafd556 in WebCore::ScriptElement::executeScript(WebCore::ScriptSourceCode const&) () from /lib/sse2/libQtWebKit.so.4
#19 0x4bccf0d5 in WebCore::HTMLScriptRunner::executePendingScriptAndDispatchEvent(WebCore::PendingScript&) () from /lib/sse2/libQtWebKit.so.4
#20 0x4bccf817 in WebCore::HTMLScriptRunner::executeParsingBlockingScript() () from /lib/sse2/libQtWebKit.so.4
#21 0x4bccfc38 in WebCore::HTMLScriptRunner::executeParsingBlockingScripts() () from /lib/sse2/libQtWebKit.so.4
#22 0x4bcb6e62 in WebCore::HTMLDocumentParser::notifyFinished(WebCore::CachedResource*) () from /lib/sse2/libQtWebKit.so.4
#23 0x4bdfa663 in WebCore::CachedResource::checkNotify() () from /lib/sse2/libQtWebKit.so.4
#24 0x4bdff2b5 in WebCore::CachedScript::data(WTF::PassRefPtr<WebCore::ResourceBuffer>, bool) () from /lib/sse2/libQtWebKit.so.4
#25 0x4be69c08 in WebCore::SubresourceLoader::didFinishLoading(double) () from /lib/sse2/libQtWebKit.so.4
#26 0x4be5c73c in WebCore::ResourceLoader::didFinishLoading(WebCore::ResourceHandle*, double) () from /lib/sse2/libQtWebKit.so.4
#27 0x4c1eb070 in WebCore::QNetworkReplyHandler::finish() () from /lib/sse2/libQtWebKit.so.4
#28 0x4c1eabe8 in WebCore::QNetworkReplyHandlerCallQueue::flush() [clone .part.55] () from /lib/sse2/libQtWebKit.so.4
#29 0x4c1eac3b in WebCore::QNetworkReplyHandlerCallQueue::push(void (WebCore::QNetworkReplyHandler::*)()) () from /lib/sse2/libQtWebKit.so.4
#30 0x4c1eacda in WebCore::QNetworkReplyWrapper::didReceiveFinished() () from /lib/sse2/libQtWebKit.so.4
#31 0x45078395 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib/libQtCore.so.4
#32 0x452cc9c6 in QNetworkReply::finished() () from /lib/libQtNetwork.so.4
#33 0x452ccc70 in QNetworkReply::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) [clone .part.0] () from /lib/libQtNetwork.so.4
#34 0x4506b35a in QMetaMethod::invoke(QObject*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) const () from /lib/libQtCore.so.4
#35 0x4506db74 in QMetaObject::invokeMethod(QObject*, char const*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) () from /lib/libQtCore.so.4
#36 0x488cce39 in KDEPrivate::AccessManagerReply::emitFinished(bool, Qt::ConnectionType) () from /lib/libkio.so.5
#37 0x488cef10 in KDEPrivate::AccessManagerReply::slotResult(KJob*) () from /lib/libkio.so.5
#38 0x488cfa79 in KDEPrivate::AccessManagerReply::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) [clone .part.11] () from /lib/libkio.so.5
#39 0x45078395 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib/libQtCore.so.4
#40 0x4550b2ba in KJob::result(KJob*) () from /lib/libkdecore.so.5
#41 0x4550b323 in KJob::emitResult() () from /lib/libkdecore.so.5
#42 0x48913937 in KIO::SimpleJob::slotFinished() () from /lib/libkio.so.5
#43 0x48914fe2 in KIO::TransferJob::slotFinished() () from /lib/libkio.so.5
#44 0x48915d18 in KIO::TransferJob::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) [clone .part.72] () from /lib/libkio.so.5
#45 0x45078395 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib/libQtCore.so.4
#46 0x489ca686 in KIO::SlaveInterface::finished() () from /lib/libkio.so.5
#47 0x489cc7f0 in KIO::SlaveInterface::dispatch(int, QByteArray const&) () from /lib/libkio.so.5
#48 0x489c938b in KIO::SlaveInterface::dispatch() () from /lib/libkio.so.5
#49 0x489bbad8 in KIO::Slave::gotInput() () from /lib/libkio.so.5
#50 0x489bbc84 in KIO::Slave::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /lib/libkio.so.5
#51 0x45078395 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib/libQtCore.so.4
#52 0x488d7766 in KIO::Connection::readyRead() () from /lib/libkio.so.5
#53 0x488d7f78 in KIO::ConnectionPrivate::dequeue() [clone .part.11] () from /lib/libkio.so.5
#54 0x4507493b in QMetaCallEvent::placeMetaCall(QObject*) () from /lib/libQtCore.so.4
#55 0x4507cc7b in QObject::event(QEvent*) () from /lib/libQtCore.so.4
#56 0x47e71bd4 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/libQtGui.so.4
#57 0x47e78b29 in QApplication::notify(QObject*, QEvent*) () from /lib/libQtGui.so.4
#58 0x45a37ec0 in KApplication::notify(QObject*, QEvent*) () from /lib/libkdeui.so.5
#59 0x450625f6 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib/libQtCore.so.4
#60 0x45065b5a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/libQtCore.so.4
#61 0x4506605d in QCoreApplication::sendPostedEvents(QObject*, int) () from /lib/libQtCore.so.4
#62 0x45094adf in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib/libQtCore.so.4
#63 0x46c6b556 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#64 0x46c6b920 in g_main_context_iterate.isra.23 () from /lib/libglib-2.0.so.0
#65 0x46c6b9e9 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#66 0x45094270 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQtCore.so.4
#67 0x47f2834c in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQtGui.so.4
#68 0x45060ea0 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQtCore.so.4
#69 0x45061231 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQtCore.so.4
#70 0x4506706b in QCoreApplication::exec() () from /lib/libQtCore.so.4
#71 0x47e6fee5 in QApplication::exec() () from /lib/libQtGui.so.4
#72 0x4620983a in kdemain () from /lib/libkdeinit4_konqueror.so
#73 0x0804872c in main ()

Possible duplicates by query: bug 334540, bug 329521.

Reported using DrKonqi