Application: plasmashell (5.4.1)

Qt Version: 5.5.0
Operating System: Linux 4.1.7-200.fc22.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:  I was simply rebooting the computer.  Also happens on shutdowns.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f93379a4900 (LWP 1742))]

Thread 8 (Thread 0x7f93179de700 (LWP 1743)):
#0  0x00007f932f3b72fd in poll () from /lib64/libc.so.6
#1  0x00007f93357ee182 in _xcb_conn_wait () from /lib64/libxcb.so.1
#2  0x00007f93357efc77 in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007f931995f999 in QXcbEventReader::run() () from /lib64/libQt5XcbQpa.so.5
#4  0x00007f932ffc354e in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#5  0x00007f932e067555 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f932f3c2b9d in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f9314faa700 (LWP 1806)):
#0  0x00007f932a5b0ec9 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f932a56b369 in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#2  0x00007f932a56bceb in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f932a56becc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f93301fadab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f93301a1daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007f932ffbe5a4 in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x00007f9334284245 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f932ffc354e in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#9  0x00007f932e067555 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f932f3c2b9d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f9305f01700 (LWP 1815)):
#0  0x00007f932f3b2fad in read () from /lib64/libc.so.6
#1  0x00007f932a5afb00 in g_wakeup_acknowledge () from /lib64/libglib-2.0.so.0
#2  0x00007f932a56b8b4 in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x00007f932a56bd60 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#4  0x00007f932a56becc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007f93301fadab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007f93301a1daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#7  0x00007f932ffbe5a4 in QThread::exec() () from /lib64/libQt5Core.so.5
#8  0x00007f9334284245 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#9  0x00007f932ffc354e in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#10 0x00007f932e067555 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f932f3c2b9d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f92fffff700 (LWP 1823)):
#0  0x00007f932a5b0ec9 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f932a56b369 in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#2  0x00007f932a56bceb in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f932a56becc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f93301fadab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f93301a1daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007f932ffbe5a4 in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x00007f9334284245 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007f932ffc354e in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#9  0x00007f932e067555 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f932f3c2b9d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f92fe9bf700 (LWP 1826)):
#0  0x00007f932e06c540 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f93370bd494 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQt5Script.so.5
#2  0x00007f93370bd4d9 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQt5Script.so.5
#3  0x00007f932e067555 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f932f3c2b9d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f9277df9700 (LWP 1827)):
#0  0x00007f93301fa2e0 in postEventSourcePrepare(_GSource*, int*) () from /lib64/libQt5Core.so.5
#1  0x00007f932a56b35d in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#2  0x00007f932a56bceb in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f932a56becc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f93301fadab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f93301a1daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007f932ffbe5a4 in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x00007f9334e26616 in QQuickPixmapReader::run() () from /lib64/libQt5Quick.so.5
#8  0x00007f932ffc354e in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#9  0x00007f932e067555 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f932f3c2b9d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f926bf22700 (LWP 1830)):
[KCrash Handler]
#5  0x00007f932ffcf7a5 in QList<QString>::detach_helper(int) () from /lib64/libQt5Core.so.5
#6  0x00007f9330066e82 in QtPrivate::QStringList_sort(QStringList*, Qt::CaseSensitivity) () from /lib64/libQt5Core.so.5
#7  0x00007f926db714ed in KCupsConnection::updateSubscription() () from /lib64/libkcupslib.so
#8  0x00007f93301d315a in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#9  0x00007f93301dfa38 in QTimer::timerEvent(QTimerEvent*) () from /lib64/libQt5Core.so.5
#10 0x00007f93301d3fd3 in QObject::event(QEvent*) () from /lib64/libQt5Core.so.5
#11 0x00007f933175a4ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#12 0x00007f933175f976 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#13 0x00007f93301a461b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#14 0x00007f93301f9bad in QTimerInfoList::activateTimers() () from /lib64/libQt5Core.so.5
#15 0x00007f93301fa0b1 in timerSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5Core.so.5
#16 0x00007f932a56ba8a in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#17 0x00007f932a56be20 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#18 0x00007f932a56becc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#19 0x00007f93301fad8f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#20 0x00007f93301a1daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#21 0x00007f932ffbe5a4 in QThread::exec() () from /lib64/libQt5Core.so.5
#22 0x00007f926db71397 in KCupsConnection::run() () from /lib64/libkcupslib.so
#23 0x00007f932ffc354e in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#24 0x00007f932e067555 in start_thread () from /lib64/libpthread.so.0
#25 0x00007f932f3c2b9d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f93379a4900 (LWP 1742)):
#0  0x00007f932f3a6b77 in sched_yield () from /lib64/libc.so.6
#1  0x00007f930e8e6961 in nouveau_fence_wait () from /usr/lib64/dri/nouveau_dri.so
#2  0x00007f930e698b9b in st_finish () from /usr/lib64/dri/nouveau_dri.so
#3  0x00007f930e69c2f0 in st_AllocTextureImageBuffer () from /usr/lib64/dri/nouveau_dri.so
#4  0x00007f930e69e99c in st_TexImage () from /usr/lib64/dri/nouveau_dri.so
#5  0x00007f930e634c00 in teximage () from /usr/lib64/dri/nouveau_dri.so
#6  0x00007f930e635ee0 in _mesa_TexImage2D () from /usr/lib64/dri/nouveau_dri.so
#7  0x00007f93309fa0a0 in QOpenGLTextureGlyphCache::createTextureData(int, int) () from /lib64/libQt5Gui.so.5
#8  0x00007f93309874fc in QTextureGlyphCache::fillInPendingGlyphs() () from /lib64/libQt5Gui.so.5
#9  0x00007f9334e7eb2f in QSGTextMaskMaterial::populate(QPointF const&, QVector<unsigned int> const&, QVector<QPointF> const&, QSGGeometry*, QRectF*, QPointF*, QMargins const&) () from /lib64/libQt5Quick.so.5
#10 0x00007f9334e7caec in QSGDefaultGlyphNode::update() () from /lib64/libQt5Quick.so.5
#11 0x00007f9334f05ad7 in QQuickTextNode::addGlyphs(QPointF const&, QGlyphRun const&, QColor const&, QQuickText::TextStyle, QColor const&, QSGNode*) () from /lib64/libQt5Quick.so.5
#12 0x00007f9334f09f07 in QQuickTextNodeEngine::addToSceneGraph(QQuickTextNode*, QQuickText::TextStyle, QColor const&) () from /lib64/libQt5Quick.so.5
#13 0x00007f9334f06997 in QQuickTextNode::addTextLayout(QPointF const&, QTextLayout*, QColor const&, QQuickText::TextStyle, QColor const&, QColor const&, QColor const&, QColor const&, int, int, int, int) () from /lib64/libQt5Quick.so.5
#14 0x00007f9334f05128 in QQuickText::updatePaintNode(QSGNode*, QQuickItem::UpdatePaintNodeData*) () from /lib64/libQt5Quick.so.5
#15 0x00007f9334ec3850 in QQuickWindowPrivate::updateDirtyNode(QQuickItem*) () from /lib64/libQt5Quick.so.5
#16 0x00007f9334ec40ab in QQuickWindowPrivate::updateDirtyNodes() () from /lib64/libQt5Quick.so.5
#17 0x00007f9334ec4220 in QQuickWindowPrivate::syncSceneGraph() () from /lib64/libQt5Quick.so.5
#18 0x00007f9334e92fac in QSGGuiThreadRenderLoop::renderWindow(QQuickWindow*) () from /lib64/libQt5Quick.so.5
#19 0x00007f9334e94121 in QSGGuiThreadRenderLoop::event(QEvent*) () from /lib64/libQt5Quick.so.5
#20 0x00007f933175a4ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#21 0x00007f933175f976 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#22 0x00007f93301a461b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#23 0x00007f93301f9bad in QTimerInfoList::activateTimers() () from /lib64/libQt5Core.so.5
#24 0x00007f93301fa0b1 in timerSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5Core.so.5
#25 0x00007f932a56ba8a in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#26 0x00007f932a56be20 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#27 0x00007f932a56becc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#28 0x00007f93301fad8f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#29 0x00007f93301a1daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#30 0x00007f93301a9e6c in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#31 0x00000000004302c3 in main ()

Possible duplicates by query: bug 349936, bug 349403, bug 346941.

Reported using DrKonqi