Bug 415273

Application: plasma-discover (5.16.5)

Qt Version: 5.12.4
Frameworks Version: 5.62.0
Operating System: Linux 5.3.0-24-generic x86_64
Distribution: Ubuntu 19.10

-- Information about the crash:
Got a notification that there are updates to install. I clicked the notification icon and Discover crashes. It seems to crash a few times in sequence.

Tried multiple times with the same results.

I ran sudo apt update && sudo apt upgrade from the terminal. Packages installed, although I do get an error:
Errors were encountered while processing:
 nvidia-dkms-430
 nvidia-driver-430
E: Sub-process /usr/bin/dpkg returned an error code (1)

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 0x7f3b51d34680 (LWP 18365))]

Thread 9 (Thread 0x7f3b253d0700 (LWP 18374)):
#0  0x00007f3b55a4bc2f in __GI___poll (fds=0x7f3b0400e200, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3b547dea3e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3b547deb73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3b55ff26c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3b55f9963b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3b55dd2a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3b55dd3cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b55914669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#8  0x00007f3b55a58323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f3b26b6b700 (LWP 18372)):
#0  0x00007f3b55a4bc2f in __GI___poll (fds=0x7f3b0c00e380, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3b547dea3e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3b547deb73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3b55ff26c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3b55f9963b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3b55dd2a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3b55dd3cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b55914669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#8  0x00007f3b55a58323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f3b27778700 (LWP 18371)):
#0  0x00007f3b55a472ac in __GI___libc_read (nbytes=16, buf=0x7f3b27777a90, fd=22) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f3b55a472ac in __GI___libc_read (fd=22, buf=0x7f3b27777a90, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f3b5482663f in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3b547de58e in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3b547de9e2 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3b547deb73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f3b55ff26c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b55f9963b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3b55dd2a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3b55dd3cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f3b55914669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f3b55a58323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f3b27fff700 (LWP 18370)):
#0  0x00007f3b55a4bc2f in __GI___poll (fds=0x5575f5e80080, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3b547dea3e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3b547dedc3 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3b544d659a in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f3b54808111 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3b55914669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007f3b55a58323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f3b4088b700 (LWP 18369)):
#0  0x00007f3b55a4bc2f in __GI___poll (fds=0x5575f5bfe040, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3b547dea3e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3b547deb73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3b547debc1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3b54808111 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3b55914669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007f3b55a58323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f3b4ab01700 (LWP 18368)):
#0  0x00007f3b55a4bc2f in __GI___poll (fds=0x7f3b3c0025e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3b547dea3e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3b547deb73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3b55ff26c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3b55f9963b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3b55dd2a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3b567ed319 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f3b55dd3cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3b55914669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007f3b55a58323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f3b4bd12700 (LWP 18367)):
#0  0x00007f3b55a472ac in __GI___libc_read (nbytes=16, buf=0x7f3b4bd11a60, fd=7) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f3b55a472ac in __GI___libc_read (fd=7, buf=0x7f3b4bd11a60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f3b5482663f in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3b547de58e in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3b547de9e2 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3b547deb73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f3b55ff26c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b55f9963b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3b55dd2a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3b56997efa in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007f3b55dd3cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f3b55914669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#12 0x00007f3b55a58323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f3b50e84700 (LWP 18366)):
#0  0x00007f3b55a4bc2f in __GI___poll (fds=0x7f3b50e83ba8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3b546f8917 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f3b546fa53a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f3b51679288 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f3b55dd3cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3b55914669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007f3b55a58323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f3b51d34680 (LWP 18365)):
[KCrash Handler]
#6  0x00007f3b5597c3eb in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#7  0x00007f3b5595b899 in __GI_abort () at abort.c:79
#8  0x00007f3b55d9aa99 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3b57b3694d in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f3b57b37a25 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f3b57b382ed in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f3b56dfeb3d in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007f3b57bb767f in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f3b5741da86 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f3b57426e00 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f3b55f9aa9a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f3b56df52d6 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#18 0x00007f3b56df5504 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#19 0x00007f3b56dcf26b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007f3b5167a28e in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#21 0x00007f3b547de84d in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f3b547dead0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f3b547deb73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f3b55ff26a5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f3b55f9963b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f3b55fa13a6 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00005575f45885a1 in  ()
#28 0x00007f3b5595d1e3 in __libc_start_main (main=0x5575f4587f00, argc=1, argv=0x7ffdde516058, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffdde516048) at ../csu/libc-start.c:308
#29 0x00005575f4588b3e in _start ()
[Inferior 1 (process 18365) detached]

Reported using DrKonqi