Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-24-generic x86_64
Distribution: Ubuntu 16.04 LTS

-- Information about the crash:
- What I was doing when the application crashed: I removed the Nvidia drivers after upgrading Kubuntu from 15.10 to 16.04 since plasmashell would contstantly crash.  After two months of upgrades, I thought I would install the Nvidia drivers and try again, but plasmashell still crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f34d2c7a8c0 (LWP 1851))]

Thread 9 (Thread 0x7f34beed3700 (LWP 1859)):
#0  0x00007f34cd38be8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f34d1450c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f34d14528d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f34c1653629 in QXcbEventReader::run (this=0x1a8d290) at qxcbconnection.cpp:1253
#4  0x00007f34cda8184e in QThreadPrivate::start (arg=0x1a8d290) at thread/qthread_unix.cpp:331
#5  0x00007f34ccb6e6fa in start_thread (arg=0x7f34beed3700) at pthread_create.c:333
#6  0x00007f34cd397b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f34b5b1d700 (LWP 1895)):
#0  0x00007ffc905c1caf in clock_gettime ()
#1  0x00007f34cd3a5fb6 in __GI___clock_gettime (clock_id=1, tp=tp@entry=0x7f34b5b1ca50) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f34cdb31c16 in qt_clock_gettime (ts=0x7f34b5b1ca50, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#5  0x00007f34cdcb6529 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f34b0002ed0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f34cdcb6a95 in QTimerInfoList::timerWait (this=0x7f34b0002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:381
#7  0x00007f34cdcb7e7e in timerSourcePrepareHelper (timeout=0x7f34b5b1cb24, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f34b5b1cb24) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f34ca1208ad in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f34ca12124b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f34ca12142c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f34cdcb8a9b in QEventDispatcherGlib::processEvents (this=0x7f34b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x00007f34cdc5fdea in QEventLoop::exec (this=this@entry=0x7f34b5b1cce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f34cda7c8a4 in QThread::exec (this=this@entry=0x1b667e0) at thread/qthread.cpp:503
#15 0x00007f34d03243c5 in QQmlThreadPrivate::run (this=0x1b667e0) at qml/ftw/qqmlthread.cpp:141
#16 0x00007f34cda8184e in QThreadPrivate::start (arg=0x1b667e0) at thread/qthread_unix.cpp:331
#17 0x00007f34ccb6e6fa in start_thread (arg=0x7f34b5b1d700) at pthread_create.c:333
#18 0x00007f34cd397b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f34ac154700 (LWP 1902)):
#0  0x00007ffc905c1caf in clock_gettime ()
#1  0x00007f34cd3a5fb6 in __GI___clock_gettime (clock_id=1, tp=tp@entry=0x7f34ac153a50) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f34cdb31c16 in qt_clock_gettime (ts=0x7f34ac153a50, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#5  0x00007f34cdcb6529 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f34a4002cd0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f34cdcb6a95 in QTimerInfoList::timerWait (this=0x7f34a4002cd0, tm=...) at kernel/qtimerinfo_unix.cpp:381
#7  0x00007f34cdcb7e7e in timerSourcePrepareHelper (timeout=0x7f34ac153b24, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f34ac153b24) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f34ca1208ad in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f34ca12124b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f34ca12142c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f34cdcb8a9b in QEventDispatcherGlib::processEvents (this=0x7f34a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x00007f34cdc5fdea in QEventLoop::exec (this=this@entry=0x7f34ac153ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f34cda7c8a4 in QThread::exec (this=this@entry=0x1d49d60) at thread/qthread.cpp:503
#15 0x00007f34d03243c5 in QQmlThreadPrivate::run (this=0x1d49d60) at qml/ftw/qqmlthread.cpp:141
#16 0x00007f34cda8184e in QThreadPrivate::start (arg=0x1d49d60) at thread/qthread_unix.cpp:331
#17 0x00007f34ccb6e6fa in start_thread (arg=0x7f34ac154700) at pthread_create.c:333
#18 0x00007f34cd397b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f34aa2d7700 (LWP 1903)):
#0  0x00007ffc905c1caf in clock_gettime ()
#1  0x00007f34cd3a5fb6 in __GI___clock_gettime (clock_id=1, tp=tp@entry=0x7f34aa2d6a50) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f34cdb31c16 in qt_clock_gettime (ts=0x7f34aa2d6a50, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#5  0x00007f34cdcb6529 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f349c002ed0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f34cdcb6a95 in QTimerInfoList::timerWait (this=0x7f349c002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:381
#7  0x00007f34cdcb7e7e in timerSourcePrepareHelper (timeout=0x7f34aa2d6b24, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f34aa2d6b24) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f34ca1208ad in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f34ca12124b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f34ca12142c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f34cdcb8a9b in QEventDispatcherGlib::processEvents (this=0x7f349c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x00007f34cdc5fdea in QEventLoop::exec (this=this@entry=0x7f34aa2d6ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f34cda7c8a4 in QThread::exec (this=this@entry=0x1e0e630) at thread/qthread.cpp:503
#15 0x00007f34d03243c5 in QQmlThreadPrivate::run (this=0x1e0e630) at qml/ftw/qqmlthread.cpp:141
#16 0x00007f34cda8184e in QThreadPrivate::start (arg=0x1e0e630) at thread/qthread_unix.cpp:331
#17 0x00007f34ccb6e6fa in start_thread (arg=0x7f34aa2d7700) at pthread_create.c:333
#18 0x00007f34cd397b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f34a8964700 (LWP 1909)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f34d26c9bd4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f34d26c9c19 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f34ccb6e6fa in start_thread (arg=0x7f34a8964700) at pthread_create.c:333
#4  0x00007f34cd397b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f34a1135700 (LWP 1941)):
#0  0x00007ffc905c1caf in clock_gettime ()
#1  0x00007f34cd3a5fb6 in __GI___clock_gettime (clock_id=1, tp=tp@entry=0x7f34a1134a50) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f34cdb31c16 in qt_clock_gettime (ts=0x7f34a1134a50, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#5  0x00007f34cdcb6529 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f3418002ed0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f34cdcb6a95 in QTimerInfoList::timerWait (this=0x7f3418002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:381
#7  0x00007f34cdcb7e7e in timerSourcePrepareHelper (timeout=0x7f34a1134b24, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f34a1134b24) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f34ca1208ad in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f34ca12124b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f34ca12142c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f34cdcb8a9b in QEventDispatcherGlib::processEvents (this=0x7f34180008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x00007f34cdc5fdea in QEventLoop::exec (this=this@entry=0x7f34a1134ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f34cda7c8a4 in QThread::exec (this=this@entry=0x221bfe0) at thread/qthread.cpp:503
#15 0x00007f34a17a9035 in QQuickXmlQueryEngine::run (this=0x221bfe0) at qqmlxmllistmodel.cpp:317
#16 0x00007f34cda8184e in QThreadPrivate::start (arg=0x221bfe0) at thread/qthread_unix.cpp:331
#17 0x00007f34ccb6e6fa in start_thread (arg=0x7f34a1135700) at pthread_create.c:333
#18 0x00007f34cd397b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f3417fff700 (LWP 1947)):
#0  0x00007ffc905c1caf in clock_gettime ()
#1  0x00007f34cd3a5fb6 in __GI___clock_gettime (clock_id=1, tp=tp@entry=0x7f3417ffea70) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f34cdb31c16 in qt_clock_gettime (ts=0x7f3417ffea70, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#5  0x00007f34cdcb6529 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f3410002cd0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f34cdcb6a95 in QTimerInfoList::timerWait (this=0x7f3410002cd0, tm=...) at kernel/qtimerinfo_unix.cpp:381
#7  0x00007f34cdcb7e7e in timerSourcePrepareHelper (timeout=0x7f3417ffeb44, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f3417ffeb44) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f34ca1208ad in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f34ca12124b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f34ca12142c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f34cdcb8a9b in QEventDispatcherGlib::processEvents (this=0x7f34100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x00007f34cdc5fdea in QEventLoop::exec (this=this@entry=0x7f3417ffed00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f34cda7c8a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f34cda8184e in QThreadPrivate::start (arg=0x1cfddd0) at thread/qthread_unix.cpp:331
#16 0x00007f34ccb6e6fa in start_thread (arg=0x7f3417fff700) at pthread_create.c:333
#17 0x00007f34cd397b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f3416cb9700 (LWP 2024)):
#0  0x00007f34cd38be8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f34ca12131c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f34ca12142c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f34cdcb8a9b in QEventDispatcherGlib::processEvents (this=0x7f34080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f34cdc5fdea in QEventLoop::exec (this=this@entry=0x7f3416cb8c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f34cda7c8a4 in QThread::exec (this=this@entry=0x237b240) at thread/qthread.cpp:503
#6  0x00007f34d0caaed6 in QQuickPixmapReader::run (this=0x237b240) at util/qquickpixmapcache.cpp:817
#7  0x00007f34cda8184e in QThreadPrivate::start (arg=0x237b240) at thread/qthread_unix.cpp:331
#8  0x00007f34ccb6e6fa in start_thread (arg=0x7f3416cb9700) at pthread_create.c:333
#9  0x00007f34cd397b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f34d2c7a8c0 (LWP 1851)):
[KCrash Handler]
#6  0x00007f34cd2c6418 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#7  0x00007f34cd2c801a in __GI_abort () at abort.c:89
#8  0x00007f34cda6eff1 in qt_message_fatal (context=..., message=<synthetic pointer>) at global/qlogging.cpp:1578
#9  QMessageLogger::fatal (this=this@entry=0x7ffc905636c0, msg=msg@entry=0x7f34d0e9b2c5 "%s") at global/qlogging.cpp:781
#10 0x00007f34d0d17af1 in QSGRenderLoop::handleContextCreationFailure (this=this@entry=0x1ce2b60, window=0x1f95080, isEs=isEs@entry=false) at scenegraph/qsgrenderloop.cpp:244
#11 0x00007f34d0d18b05 in QSGGuiThreadRenderLoop::renderWindow (this=this@entry=0x1ce2b60, window=0x1f95080) at scenegraph/qsgrenderloop.cpp:333
#12 0x00007f34d0d19aa6 in QSGGuiThreadRenderLoop::exposureChanged (this=0x1ce2b60, window=0x1f95080) at scenegraph/qsgrenderloop.cpp:422
#13 0x00007f34cdfad2f5 in QWindow::event (this=this@entry=0x1f95080, ev=ev@entry=0x7ffc90563bb0) at kernel/qwindow.cpp:2060
#14 0x00007f34d0d53871 in QQuickWindow::event (this=this@entry=0x1f95080, e=e@entry=0x7ffc90563bb0) at items/qquickwindow.cpp:1413
#15 0x000000000043f206 in DesktopView::event (this=0x1f95080, e=0x7ffc90563bb0) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/shell/desktopview.cpp:205
#16 0x00007f34ce76505c in QApplicationPrivate::notify_helper (this=this@entry=0x1a75c80, receiver=receiver@entry=0x1f95080, e=e@entry=0x7ffc90563bb0) at kernel/qapplication.cpp:3716
#17 0x00007f34ce76a516 in QApplication::notify (this=0x7ffc90563fd0, receiver=0x1f95080, e=0x7ffc90563bb0) at kernel/qapplication.cpp:3499
#18 0x00007f34cdc6262b in QCoreApplication::notifyInternal (this=0x7ffc90563fd0, receiver=receiver@entry=0x1f95080, event=event@entry=0x7ffc90563bb0) at kernel/qcoreapplication.cpp:965
#19 0x00007f34cdfa54ec in QCoreApplication::sendSpontaneousEvent (event=0x7ffc90563bb0, receiver=0x1f95080) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:227
#20 QGuiApplicationPrivate::processExposeEvent (e=0x234f6e0) at kernel/qguiapplication.cpp:2663
#21 0x00007f34cdfa625d in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x234f6e0) at kernel/qguiapplication.cpp:1658
#22 0x00007f34cdf89f38 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:625
#23 0x00007f34c1685070 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#24 0x00007f34ca121127 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f34ca121380 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f34ca12142c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f34cdcb8a7f in QEventDispatcherGlib::processEvents (this=0x1ac1330, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#28 0x00007f34cdc5fdea in QEventLoop::exec (this=this@entry=0x7ffc90563e70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#29 0x00007f34cdc67e8c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#30 0x00007f34cdf9bc3c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542
#31 0x00007f34ce761495 in QApplication::exec () at kernel/qapplication.cpp:2976
#32 0x0000000000432d4a in main (argc=2, argv=<optimized out>) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/shell/main.cpp:181

Possible duplicates by query: bug 363397, bug 362123, bug 362060, bug 361818, bug 361806.

Reported using DrKonqi