Application: plasma-discover (5.12.6)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-34-generic x86_64
Distribution: Ubuntu 18.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:The update notifier applet informed me I had updates available so I Clicked the update button in the applet. I had just installed the nvidia proprietary drivers but not restarted my computer yet.

The crash can be reproduced every time.

-- Backtrace:
Application: Discover (plasma-discover), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe413c5a800 (LWP 20504))]

Thread 9 (Thread 0x7fe3cd5da700 (LWP 20514)):
#0  0x00007fe40bb479f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fe3c80376a0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fe40bb479f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fe3c8037650, cond=0x7fe3c8037678) at pthread_cond_wait.c:502
#2  0x00007fe40bb479f3 in __pthread_cond_wait (cond=0x7fe3c8037678, mutex=0x7fe3c8037650) at pthread_cond_wait.c:655
#3  0x00007fe40f93959b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe40f931c0b in QSemaphore::acquire(int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe40fb458c8 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe40d10ce1b in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#7  0x00007fe40d1a2c9d in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#8  0x00007fe40fb455b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fe40d102f41 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#10 0x00007fe40d1036f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007fe40fb455b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fe40d19ca2f in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#13 0x00007fe40d19a690 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#14 0x00007fe40d19aa3a in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#15 0x00007fe40d17f381 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#16 0x00007fe40fb455b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fe40d1497c3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#18 0x00007fe40d149874 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#19 0x00007fe40d15d721 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#20 0x00007fe411dea82c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007fe411df20f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007fe40fb169a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fe40fb7054d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007fe409a14287 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fe409a144c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fe409a1454c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007fe40fb6f90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007fe40fb149ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007fe40f93322a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007fe40f93816d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007fe40bb416db in start_thread (arg=0x7fe3cd5da700) at pthread_create.c:463
#32 0x00007fe40f22e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fe3dc864700 (LWP 20512)):
#0  0x00007fe40bb47ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fe3dc863c40, expected=0, futex_word=0x7fe3d0006df4) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fe40bb47ed9 in __pthread_cond_wait_common (abstime=0x7fe3dc863d00, mutex=0x7fe3d0006da0, cond=0x7fe3d0006dc8) at pthread_cond_wait.c:533
#2  0x00007fe40bb47ed9 in __pthread_cond_timedwait (cond=0x7fe3d0006dc8, mutex=0x7fe3d0006da0, abstime=0x7fe3dc863d00) at pthread_cond_wait.c:667
#3  0x00007fe40f939458 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe40f93552d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe40f93816d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe40bb416db in start_thread (arg=0x7fe3dc864700) at pthread_create.c:463
#7  0x00007fe40f22e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fe3dd065700 (LWP 20511)):
#0  0x00007fe40bb479f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fe3d00318e0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fe40bb479f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fe3d0031890, cond=0x7fe3d00318b8) at pthread_cond_wait.c:502
#2  0x00007fe40bb479f3 in __pthread_cond_wait (cond=0x7fe3d00318b8, mutex=0x7fe3d0031890) at pthread_cond_wait.c:655
#3  0x00007fe40f93959b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe40f931c0b in QSemaphore::acquire(int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe40fb458c8 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe40d10ce1b in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#7  0x00007fe40d1a2c9d in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#8  0x00007fe40fb455b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fe40d102f41 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#10 0x00007fe40d1036f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007fe40fb455b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fe40d19ca2f in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#13 0x00007fe40d19a690 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#14 0x00007fe40d19aa3a in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#15 0x00007fe40d17f381 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#16 0x00007fe40fb455b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fe40d1497c3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#18 0x00007fe40d149874 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#19 0x00007fe40d15d721 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#20 0x00007fe411dea82c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007fe411df20f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007fe40fb169a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fe40fb7054d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007fe409a14287 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fe409a144c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fe409a1454c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007fe40fb6f90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007fe40fb149ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007fe40f93322a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007fe40f93816d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007fe40bb416db in start_thread (arg=0x7fe3dd065700) at pthread_create.c:463
#32 0x00007fe40f22e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fe3de5e6700 (LWP 20510)):
#0  0x00007fe40fb6fcf7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fe409a13e51 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe409a143e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe409a1454c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe40fb6f90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe40fb149ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe40f93322a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe40f93816d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fe40bb416db in start_thread (arg=0x7fe3de5e6700) at pthread_create.c:463
#9  0x00007fe40f22e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fe3e7fff700 (LWP 20509)):
#0  0x00007fe40f21d0b4 in __GI___libc_read (fd=12, buf=0x7fe3e7ffeb20, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fe409a58980 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe409a13f27 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe409a143e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe409a1454c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe40fb6f90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe40fb149ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe40f93322a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fe412d132a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007fe40f93816d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fe40bb416db in start_thread (arg=0x7fe3e7fff700) at pthread_create.c:463
#11 0x00007fe40f22e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fe3f6f32700 (LWP 20508)):
#0  0x00007fe409a11350 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fe409a13d62 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe409a143e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe409a1454c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe40fb6f90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe40fb149ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe40f93322a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fe4105496f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fe40f93816d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fe40bb416db in start_thread (arg=0x7fe3f6f32700) at pthread_create.c:463
#10 0x00007fe40f22e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fe3f8143700 (LWP 20507)):
#0  0x00007fe40f221bf9 in __GI___poll (fds=0x7fe3f00192b0, nfds=1, timeout=19928) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fe409a14439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe409a1454c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe40fb6f90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fe40fb149ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe40f93322a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fe410d24d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fe40f93816d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fe40bb416db in start_thread (arg=0x7fe3f8143700) at pthread_create.c:463
#9  0x00007fe40f22e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fe401615700 (LWP 20506)):
#0  0x00007fe40f221bf9 in __GI___poll (fds=0x7fe401614ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fe4097ab747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fe4097ad36a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fe4043c22a9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fe40f93816d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fe40bb416db in start_thread (arg=0x7fe401615700) at pthread_create.c:463
#6  0x00007fe40f22e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fe413c5a800 (LWP 20504)):
[KCrash Handler]
#6  0x00007fe40f14be97 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007fe40f14d801 in __GI_abort () at abort.c:79
#8  0x00007fe40f922fa7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fe412d762a7 in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007fe412d77275 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fe412d77e9a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007fe41163a375 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007fe412dec6c5 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007fe411dea82c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007fe411df20f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007fe40fb169a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fe41162f43f in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#18 0x00007fe41163007d in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#19 0x00007fe4116072eb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007fe4044251c0 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#21 0x00007fe409a14287 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fe409a144c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fe409a1454c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fe40fb6f8ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007fe40fb149ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007fe40fb1da84 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x0000563f3d1380e8 in  ()
#28 0x00007fe40f12eb97 in __libc_start_main (main=0x563f3d137810, argc=1, argv=0x7ffe2e1c3478, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe2e1c3468) at ../csu/libc-start.c:310
#29 0x0000563f3d13836a in _start ()

Reported using DrKonqi