Application: plasmashell (5.4.2)

Qt Version: 5.5.0
Operating System: Linux 4.2.5-300.fc23.x86_64 x86_64
Distribution: "Fedora release 23 (Twenty Three)"

-- Information about the crash:
Plasma crashes several times after login. Any special reasons leading to crash are not known

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 0x7f3539b38940 (LWP 3343))]

Thread 8 (Thread 0x7f351989f700 (LWP 3347)):
#0  0x00007f353159011d in poll () at /lib64/libc.so.6
#1  0x00007f35379fa272 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f35379fbee7 in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f351b823999 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f353219754e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f353023c60a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f353159bbbd in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f3512dbb700 (LWP 3370)):
#0  0x00007f352c711719 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x00007f352c6cd12e in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f352c6cd27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f35323cedab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f3532375daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f35321925a4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f353648f245 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007f353219754e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f353023c60a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f353159bbbd in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f3504ca0700 (LWP 3375)):
#0  0x00007f352c711734 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007f352c6cc700 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007f352c6cd09b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f352c6cd27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f35323cedab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f3532375daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f35321925a4 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007f353648f245 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#8  0x00007f353219754e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007f353023c60a in start_thread () at /lib64/libpthread.so.0
#10 0x00007f353159bbbd in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f34fefa4700 (LWP 3380)):
#0  0x00007f353159011d in poll () at /lib64/libc.so.6
#1  0x00007f352c6cd16c in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f352c6cd27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f35323cedab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f3532375daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f35321925a4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f353648f245 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007f353219754e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f353023c60a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f353159bbbd in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f34fd6b8700 (LWP 3384)):
#0  0x00007f3530241b10 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f35392ca494 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007f35392ca4d9 in  () at /lib64/libQt5Script.so.5
#3  0x00007f353023c60a in start_thread () at /lib64/libpthread.so.0
#4  0x00007f353159bbbd in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f3476a05700 (LWP 3406)):
#0  0x00007f352c6cc6e4 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#1  0x00007f352c6cd09b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f352c6cd27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f35323cedab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f3532375daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f35321925a4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f3537032616 in QQuickPixmapReader::run() () at /lib64/libQt5Quick.so.5
#7  0x00007f353219754e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f353023c60a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f353159bbbd in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f347534a700 (LWP 3458)):
#0  0x00007ffdc8d63b5f in clock_gettime ()
#1  0x00007f35315a9e56 in clock_gettime () at /lib64/libc.so.6
#2  0x00007f3532247bc6 in qt_gettime() () at /lib64/libQt5Core.so.5
#3  0x00007f35323cc839 in QTimerInfoList::updateCurrentTime() () at /lib64/libQt5Core.so.5
#4  0x00007f35323ce572 in timerSourceCheck(_GSource*) () at /lib64/libQt5Core.so.5
#5  0x00007f352c6ccbb1 in g_main_context_check () at /lib64/libglib-2.0.so.0
#6  0x00007f352c6cd110 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#7  0x00007f352c6cd27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#8  0x00007f35323cedab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#9  0x00007f3532375daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#10 0x00007f35321925a4 in QThread::exec() () at /lib64/libQt5Core.so.5
#11 0x00007f3463bae3c7 in KCupsConnection::run() () at /lib64/libkcupslib.so
#12 0x00007f353219754e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#13 0x00007f353023c60a in start_thread () at /lib64/libpthread.so.0
#14 0x00007f353159bbbd in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f3539b38940 (LWP 3343)):
[KCrash Handler]
#5  0x00007f35314cda98 in raise () at /lib64/libc.so.6
#6  0x00007f35314cf69a in abort () at /lib64/libc.so.6
#7  0x00007f35314c6227 in __assert_fail_base () at /lib64/libc.so.6
#8  0x00007f35314c62d2 in  () at /lib64/libc.so.6
#9  0x00007f350bdfbc9c in  () at /lib64/libdrm_nouveau.so.2
#10 0x00007f350bdfd0d2 in nouveau_pushbuf_reloc () at /lib64/libdrm_nouveau.so.2
#11 0x00007f35107632f0 in nv30_transfer_copy_data () at /usr/lib64/dri/nouveau_dri.so
#12 0x00007f351074d8dc in nouveau_transfer_write () at /usr/lib64/dri/nouveau_dri.so
#13 0x00007f351074da98 in nouveau_buffer_transfer_unmap () at /usr/lib64/dri/nouveau_dri.so
#14 0x00007f35106640e6 in u_default_transfer_inline_write () at /usr/lib64/dri/nouveau_dri.so
#15 0x00007f35104d835d in st_bufferobj_data () at /usr/lib64/dri/nouveau_dri.so
#16 0x00007f351039ceb0 in _mesa_buffer_data () at /usr/lib64/dri/nouveau_dri.so
#17 0x00007f351039d1ef in _mesa_BufferData () at /usr/lib64/dri/nouveau_dri.so
#18 0x00007f353705aadf in QSGBatchRenderer::Renderer::unmap(QSGBatchRenderer::Buffer*, bool) () at /lib64/libQt5Quick.so.5
#19 0x00007f353705cdc9 in QSGBatchRenderer::Renderer::uploadBatch(QSGBatchRenderer::Batch*) () at /lib64/libQt5Quick.so.5
#20 0x00007f3537067da6 in QSGBatchRenderer::Renderer::render() () at /lib64/libQt5Quick.so.5
#21 0x00007f3537073adf in QSGRenderer::renderScene(QSGBindable const&) () at /lib64/libQt5Quick.so.5
#22 0x00007f353707432b in QSGRenderer::renderScene(unsigned int) () at /lib64/libQt5Quick.so.5
#23 0x00007f353708471e in QSGRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () at /lib64/libQt5Quick.so.5
#24 0x00007f35370ce65b in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /lib64/libQt5Quick.so.5
#25 0x00007f353709f01b in QSGGuiThreadRenderLoop::renderWindow(QQuickWindow*) () at /lib64/libQt5Quick.so.5
#26 0x00007f35370a0121 in QSGGuiThreadRenderLoop::event(QEvent*) () at /lib64/libQt5Quick.so.5
#27 0x00007f353392e4ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#28 0x00007f3533933976 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#29 0x00007f353237861b in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#30 0x00007f35323cdbad in QTimerInfoList::activateTimers() () at /lib64/libQt5Core.so.5
#31 0x00007f35323ce0e9 in idleTimerSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#32 0x00007f352c6cce3a in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#33 0x00007f352c6cd1d0 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#34 0x00007f352c6cd27c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#35 0x00007f35323ced8f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#36 0x00007f3532375daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#37 0x00007f353237de6c in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#38 0x000055cee52b0363 in main ()

Reported using DrKonqi