Bug 349082

Application: plasmashell (5.3.1)

Qt Version: 5.4.2
Operating System: Linux 4.0.4-303.fc22.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
I logged in at the console and then executed `startx`.  It crashed before ever drawing the desktop.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4592a00900 (LWP 5882))]

Thread 3 (Thread 0x7f45718cc700 (LWP 5884)):
#0  0x00007f458a8bf66d in poll () at /lib64/libc.so.6
#1  0x00007f4590cb2182 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f4590cb3d07 in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f4573db07d9 in QXcbEventReader::run() () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#4  0x00007f458b4c9e3e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f45892a4555 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f458a8caf3d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f456b3e7700 (LWP 5886)):
#0  0x00007f458a8bf66d in poll () at /lib64/libc.so.6
#1  0x00007f45859b9dbc in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f45859b9ecc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f458b700b8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f458b6a6eba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f458b4c4f54 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f458f74e955 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007f458b4c9e3e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f45892a4555 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f458a8caf3d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f4592a00900 (LWP 5882)):
[KCrash Handler]
#5  0x00007f458a7fda98 in raise () at /lib64/libc.so.6
#6  0x00007f458a7ff72a in abort () at /lib64/libc.so.6
#7  0x00007f458b4b7808 in  () at /lib64/libQt5Core.so.5
#8  0x00007f4573ddbf2b in  () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#9  0x00007f4573db41cb in QXcbIntegration::createPlatformOpenGLContext(QOpenGLContext*) const () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#10 0x00007f458bbff58b in QOpenGLContext::create() () at /lib64/libQt5Gui.so.5
#11 0x00007f4573ddc2fa in QGLXContext::queryDummyContext() () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#12 0x00007f4573ddc4a1 in QGLXContext::supportsThreading() () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#13 0x00007f458fe27efb in QSGRenderLoop::instance() () at /lib64/libQt5Quick.so.5
#14 0x00007f458fe58725 in QQuickWindowPrivate::init(QQuickWindow*, QQuickRenderControl*) () at /lib64/libQt5Quick.so.5
#15 0x00007f459244516c in PlasmaQuick::Dialog::Dialog(QQuickItem*) () at /lib64/libKF5PlasmaQuick.so.5
#16 0x00007f4569d9bb60 in void QQmlPrivate::createInto<PlasmaQuick::Dialog>(void*) () at /usr/lib64/qt5/qml/org/kde/plasma/core/libcorebindingsplugin.so
#17 0x00007f458f6e613b in QQmlType::create() const () at /lib64/libQt5Qml.so.5
#18 0x00007f458f74a28b in QQmlObjectCreator::createInstance(int, QObject*, bool) () at /lib64/libQt5Qml.so.5
#19 0x00007f458f74aa44 in QQmlObjectCreator::create(int, QObject*, QQmlInstantiationInterrupt*) () at /lib64/libQt5Qml.so.5
#20 0x00007f458f6d3937 in QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt&) () at /lib64/libQt5Qml.so.5
#21 0x00007f458f6d4224 in QQmlIncubationController::incubateFor(int) () at /lib64/libQt5Qml.so.5
#22 0x00007f45902ab7bc in KDeclarative::QmlObjectIncubationController::incubatingObjectCountChanged(int) () at /lib64/libKF5Declarative.so.5
#23 0x00007f458f6d4039 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () at /lib64/libQt5Qml.so.5
#24 0x00007f458f6cf88c in QQmlComponent::create(QQmlIncubator&, QQmlContext*, QQmlContext*) () at /lib64/libQt5Qml.so.5
#25 0x00007f459029bfac in KDeclarative::QmlObject::completeInitialization(QHash<QString, QVariant> const&) () at /lib64/libKF5Declarative.so.5
#26 0x00007f459029c13c in KDeclarative::QmlObjectPrivate::scheduleExecutionEnd() () at /lib64/libKF5Declarative.so.5
#27 0x00000000004653a8 in Osd::Osd(ShellCorona*) ()
#28 0x000000000045851f in ShellCorona::ShellCorona(QObject*) ()
#29 0x000000000046129c in ShellManager::loadHandlers() ()
#30 0x00000000004834fd in ShellManager::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) ()
#31 0x00007f458b6daf41 in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#32 0x00007f458cc3b77c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#33 0x00007f458cc40e20 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#34 0x00007f458b6a967b in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#35 0x00007f458b6ab7b7 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#36 0x00007f458b700763 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#37 0x00007f45859b9a8a in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#38 0x00007f45859b9e20 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#39 0x00007f45859b9ecc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#40 0x00007f458b700b6f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#41 0x00007f458b6a6eba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#42 0x00007f458b6aea2c in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#43 0x000000000042ebaf in main ()

Reported using DrKonqi