Bug 350483

Application: plasmashell (5.3.2)

Qt Version: 5.4.2
Operating System: Linux 4.0.8-300.fc22.i686 i686
Distribution: "Fedora release 22 (Twenty Two)"

-- Information about the crash:
After a fresh upgrade (using fedup-cli --network 22 and the required reboot), I cannot login to Plasma anymore. Just after login I get 4 crash reports: one for krunner and 3 for plasma.

With LXQt I can login without problem. However, if I try from within LXQt to go to "Display and Monitors" in "KDE system settings", I get another crash.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1aba800 (LWP 3281))]

Thread 3 (Thread 0xb16dcb40 (LWP 3283)):
#0  0xb77d9bc8 in __kernel_vsyscall ()
#1  0xb4c350db in poll () from /lib/libc.so.6
#2  0xb71ec718 in _xcb_conn_wait () from /lib/libxcb.so.1
#3  0xb71ee8d4 in xcb_wait_for_event () from /lib/libxcb.so.1
#4  0xb181b79b in QXcbEventReader::run() () from /usr/lib/qt5/plugins/platforms/libqxcb.so
#5  0xb4f87290 in QThreadPrivate::start(void*) () from /lib/libQt5Core.so.5
#6  0xb48c6370 in start_thread () from /lib/libpthread.so.0
#7  0xb4c422be in clone () from /lib/libc.so.6

Thread 2 (Thread 0xb0091b40 (LWP 3305)):
#0  0xb41c10c8 in g_main_context_release () from /lib/libglib-2.0.so.0
#1  0xb41c2058 in g_main_context_iterate.isra () from /lib/libglib-2.0.so.0
#2  0xb41c21f7 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0xb51d171f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQt5Core.so.5
#4  0xb516e347 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQt5Core.so.5
#5  0xb516e7c4 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQt5Core.so.5
#6  0xb4f815dc in QThread::exec() () from /lib/libQt5Core.so.5
#7  0xb6a6f6f0 in QQmlThreadPrivate::run() () from /lib/sse2/libQt5Qml.so.5
#8  0xb4f87290 in QThreadPrivate::start(void*) () from /lib/libQt5Core.so.5
#9  0xb48c6370 in start_thread () from /lib/libpthread.so.0
#10 0xb4c422be in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb1aba800 (LWP 3281)):
[KCrash Handler]
#6  0xae80166c in _tnl_InvalidateState () from /usr/lib/dri/nouveau_vieux_dri.so
#7  0xae801768 in _tnl_wakeup () from /usr/lib/dri/nouveau_vieux_dri.so
#8  0xaeaca18a in nv10_swtnl_init () from /usr/lib/dri/nouveau_vieux_dri.so
#9  0xaeac5d63 in nv10_context_create () from /usr/lib/dri/nouveau_vieux_dri.so
#10 0xaeabae0a in nouveau_context_create () from /usr/lib/dri/nouveau_vieux_dri.so
#11 0xae96feb0 in driCreateContextAttribs () from /usr/lib/dri/nouveau_vieux_dri.so
#12 0xae970064 in driCreateNewContext () from /usr/lib/dri/nouveau_vieux_dri.so
#13 0xb4ac2ea4 in dri2_create_context () from /lib/libGL.so.1
#14 0xb4a93862 in CreateContext () from /lib/libGL.so.1
#15 0xb184ef87 in QGLXContext::init(QXcbScreen*, QPlatformOpenGLContext*) () from /usr/lib/qt5/plugins/platforms/libqxcb.so
#16 0xb181fd2b in QXcbIntegration::createPlatformOpenGLContext(QOpenGLContext*) const () from /usr/lib/qt5/plugins/platforms/libqxcb.so
#17 0xb54af24e in QOpenGLContext::create() () from /lib/libQt5Gui.so.5
#18 0xb184f9b9 in QGLXContext::queryDummyContext() () from /usr/lib/qt5/plugins/platforms/libqxcb.so
#19 0xb184fb9e in QGLXContext::supportsThreading() () from /usr/lib/qt5/plugins/platforms/libqxcb.so
#20 0xb18203fd in QXcbIntegration::hasCapability(QPlatformIntegration::Capability) const () from /usr/lib/qt5/plugins/platforms/libqxcb.so
#21 0xb6d27d8f in QSGRenderLoop::instance() () from /lib/libQt5Quick.so.5
#22 0xb6d5ebad in QQuickWindowPrivate::init(QQuickWindow*, QQuickRenderControl*) () from /lib/libQt5Quick.so.5
#23 0xb6d5ed5c in QQuickWindow::QQuickWindow(QWindow*) () from /lib/libQt5Quick.so.5
#24 0xb7779155 in PlasmaQuick::Dialog::Dialog(QQuickItem*) () from /lib/libKF5PlasmaQuick.so.5
#25 0xaeea4999 in void QQmlPrivate::createInto<PlasmaQuick::Dialog>(void*) () from /usr/lib/qt5/qml/org/kde/plasma/core/libcorebindingsplugin.so
#26 0xb69f9eda in QQmlType::create() const () from /lib/sse2/libQt5Qml.so.5
#27 0xb6a6ab4a in QQmlObjectCreator::createInstance(int, QObject*, bool) () from /lib/sse2/libQt5Qml.so.5
#28 0xb6a6b45a in QQmlObjectCreator::create(int, QObject*, QQmlInstantiationInterrupt*) () from /lib/sse2/libQt5Qml.so.5
#29 0xb69e5fd2 in QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt&) () from /lib/sse2/libQt5Qml.so.5
#30 0xb69e6861 in QQmlIncubationController::incubateFor(int) () from /lib/sse2/libQt5Qml.so.5
#31 0xb6fdcc2d in KDeclarative::QmlObjectIncubationController::incubatingObjectCountChanged(int) () from /lib/libKF5Declarative.so.5
#32 0xb69e6657 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () from /lib/sse2/libQt5Qml.so.5
#33 0xb69e19df in QQmlComponent::create(QQmlIncubator&, QQmlContext*, QQmlContext*) () from /lib/sse2/libQt5Qml.so.5
#34 0xb6fcadd9 in KDeclarative::QmlObject::completeInitialization(QHash<QString, QVariant> const&) () from /lib/libKF5Declarative.so.5
#35 0xb6fcaf8d in KDeclarative::QmlObjectPrivate::scheduleExecutionEnd() () from /lib/libKF5Declarative.so.5
#36 0x080abe95 in Osd::Osd(ShellCorona*) ()
#37 0x0809c7c6 in ShellCorona::ShellCorona(QObject*) ()
#38 0x080a6fac in ShellManager::loadHandlers() ()
#39 0x080ceb9c in ShellManager::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) ()
#40 0xb51a360b in QMetaCallEvent::placeMetaCall(QObject*) () from /lib/libQt5Core.so.5
#41 0xb51a76a9 in QObject::event(QEvent*) () from /lib/libQt5Core.so.5
#42 0xb5a89604 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/libQt5Widgets.so.5
#43 0xb5a8f3c2 in QApplication::notify(QObject*, QEvent*) () from /lib/libQt5Widgets.so.5
#44 0xb5171795 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib/libQt5Core.so.5
#45 0xb5173d41 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/libQt5Core.so.5
#46 0xb5174374 in QCoreApplication::sendPostedEvents(QObject*, int) () from /lib/libQt5Core.so.5
#47 0xb51d123f in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib/libQt5Core.so.5
#48 0xb41c1d43 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#49 0xb41c2125 in g_main_context_iterate.isra () from /lib/libglib-2.0.so.0
#50 0xb41c21f7 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#51 0xb51d1700 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQt5Core.so.5
#52 0xb18511c7 in QPAEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/qt5/plugins/platforms/libqxcb.so
#53 0xb516e347 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQt5Core.so.5
#54 0xb516e7c4 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/libQt5Core.so.5
#55 0xb517727a in QCoreApplication::exec() () from /lib/libQt5Core.so.5
#56 0xb5465565 in QGuiApplication::exec() () from /lib/libQt5Gui.so.5
#57 0xb5a85125 in QApplication::exec() () from /lib/libQt5Widgets.so.5
#58 0x0806f2eb in main ()

Reported using DrKonqi