Application: plasma-discover (5.12.8)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 5.3.0-59-generic x86_64
Distribution: Ubuntu 18.04.4 LTS

-- Information about the crash:
- What I was doing when the application crashed:
Noticed the "updates available" icon in the tray, and clicked it, then the "Update" button.

BUT, the Discover Software Center crashes no matter how it is launched.

I have a feeling it has to do with the Nvidia drivers (the proprietary ones) that I recently installed.  I'm going to remove them and then continue testing.

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 0x7ff9efaf7800 (LWP 5255))]

Thread 13 (Thread 0x7ff99e3fb700 (LWP 22205)):
#0  0x00007ff9eb0e86ac in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007ff9eb0f9755 in __check_pf (seen_ipv4=0x7ff99e3fa2f2, seen_ipv6=0x7ff99e3fa2f3, in6ai=0x7ff99e3fa300, in6ailen=0x7ff9eb0e86ac <__lll_lock_wait_private+28>) at ../sysdeps/unix/sysv/linux/check_pf.c:307
#2  0x0000000000000000 in  ()

Thread 12 (Thread 0x7ff9b3fff700 (LWP 22204)):
#0  0x00007ff9eb0dabd7 in __libc_recvmsg (fd=7, msg=0x7ff9b3ffe1d0, flags=0) at ../sysdeps/unix/sysv/linux/recvmsg.c:28
#1  0x00007ff9eb0f9a86 in make_request (pid=5255, fd=7) at ../sysdeps/unix/sysv/linux/check_pf.c:170
#2  0x00007ff9eb0f9a86 in __check_pf (seen_ipv4=seen_ipv4@entry=0x7ff9b3ffe2f2, seen_ipv6=seen_ipv6@entry=0x7ff9b3ffe2f3, in6ai=in6ai@entry=0x7ff9b3ffe300, in6ailen=in6ailen@entry=0x7ff9b3ffe308) at ../sysdeps/unix/sysv/linux/check_pf.c:329
#3  0x00007ff9eb0c06f7 in __GI_getaddrinfo (name=<optimized out>, service=0x0, hints=0x7ff9b3ffe800, pai=0x7ff9b3ffe7e0) at ../sysdeps/posix/getaddrinfo.c:2247
#4  0x00007ff9e8fef8e3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#5  0x00007ff9e8fe2823 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#6  0x00007ff9eb7db2b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff9eb7de17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff9e79ec6db in start_thread (arg=0x7ff9b3fff700) at pthread_create.c:463
#9  0x00007ff9eb0d988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7ff99dbfa700 (LWP 22203)):
#0  0x00007ff9e79f2ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7ff99dbf9c40, expected=0, futex_word=0x7ff990004050) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007ff9e79f2ed9 in __pthread_cond_wait_common (abstime=0x7ff99dbf9d00, mutex=0x7ff990004000, cond=0x7ff990004028) at pthread_cond_wait.c:533
#2  0x00007ff9e79f2ed9 in __pthread_cond_timedwait (cond=0x7ff990004028, mutex=0x7ff990004000, abstime=0x7ff99dbf9d00) at pthread_cond_wait.c:667
#3  0x00007ff9eb7df468 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff9eb7db53d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff9eb7de17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff9e79ec6db in start_thread (arg=0x7ff99dbfa700) at pthread_create.c:463
#7  0x00007ff9eb0d988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7ff99ebfc700 (LWP 5267)):
#0  0x00007ff9eb0ccbf9 in __GI___poll (fds=0x7ff9900018a0, nfds=3, timeout=240) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff9e58bd5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff9e58bd6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff9eba158ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff9eb9ba90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff9eb7d923a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff9eb7de17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff9e79ec6db in start_thread (arg=0x7ff99ebfc700) at pthread_create.c:463
#8  0x00007ff9eb0d988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7ff99ffff700 (LWP 5265)):
#0  0x00007ff9eb0ccbf9 in __GI___poll (fds=0x555be77419f0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff9e58bd5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff9e58bd962 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff9b21d7276 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007ff9e58e5175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff9e79ec6db in start_thread (arg=0x7ff99ffff700) at pthread_create.c:463
#6  0x00007ff9eb0d988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7ff9b0b99700 (LWP 5264)):
#0  0x00007ff9eb0ccbf9 in __GI___poll (fds=0x555be772e8b0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff9e58bd5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff9e58bd6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff9e58bd721 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff9e58e5175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff9e79ec6db in start_thread (arg=0x7ff9b0b99700) at pthread_create.c:463
#6  0x00007ff9eb0d988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7ff9b8fee700 (LWP 5261)):
#0  0x00007ff9eb0ccbf9 in __GI___poll (fds=0x7ff9ac0049b0, nfds=3, timeout=240) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff9e58bd5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff9e58bd6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff9eba158ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff9eb9ba90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff9eb7d923a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff9eb7de17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff9e79ec6db in start_thread (arg=0x7ff9b8fee700) at pthread_create.c:463
#8  0x00007ff9eb0d988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7ff9ba5e5700 (LWP 5260)):
#0  0x00007ff9eb0ccbf9 in __GI___poll (fds=0x7ff9b4004e10, nfds=1, timeout=10217) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff9e58bd5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff9e58bd6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff9eba158ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff9eb9ba90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff9eb7d923a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff9eb7de17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff9e79ec6db in start_thread (arg=0x7ff9ba5e5700) at pthread_create.c:463
#8  0x00007ff9eb0d988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7ff9c3fff700 (LWP 5259)):
#0  0x00007ff9eb0ccbf9 in __GI___poll (fds=0x7ff9bc004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff9e58bd5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff9e58bd6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff9eba158ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff9eb9ba90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff9eb7d923a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff9eebb92a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007ff9eb7de17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff9e79ec6db in start_thread (arg=0x7ff9c3fff700) at pthread_create.c:463
#9  0x00007ff9eb0d988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7ff9d2f32700 (LWP 5258)):
#0  0x00007ff9eb0ccbf9 in __GI___poll (fds=0x7ff9c4004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff9e58bd5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff9e58bd6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff9eba158ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff9eb9ba90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff9eb7d923a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff9ec3ef6f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007ff9eb7de17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff9e79ec6db in start_thread (arg=0x7ff9d2f32700) at pthread_create.c:463
#9  0x00007ff9eb0d988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7ff9d4143700 (LWP 5257)):
#0  0x00007ff9eb0c80b4 in __GI___libc_read (fd=7, buf=0x7ff9d4142b60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ff9e59022b0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff9e58bd0b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff9e58bd570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff9e58bd6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff9eba158ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff9eb9ba90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff9eb7d923a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff9ecbcad45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007ff9eb7de17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007ff9e79ec6db in start_thread (arg=0x7ff9d4143700) at pthread_create.c:463
#11 0x00007ff9eb0d988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ff9dd5eb700 (LWP 5256)):
#0  0x00007ff9eb0ccbf9 in __GI___poll (fds=0x7ff9dd5eaca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff9e5654747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ff9e565636a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ff9e03985e9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007ff9eb7de17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff9e79ec6db in start_thread (arg=0x7ff9dd5eb700) at pthread_create.c:463
#6  0x00007ff9eb0d988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ff9efaf7800 (LWP 5255)):
[KCrash Handler]
#6  0x00007ff9eaff6e97 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007ff9eaff8801 in __GI_abort () at abort.c:79
#8  0x00007ff9eb7c8fb7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff9eec1c2a7 in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007ff9eec1d275 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007ff9eec1de9a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007ff9ed4e03d5 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007ff9eec926c5 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007ff9edc9083c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007ff9edc98104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007ff9eb9bc8d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007ff9ed4d549f in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#18 0x00007ff9ed4d60dd in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#19 0x00007ff9ed4ad2eb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#20 0x00007ff9e03fd260 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#21 0x00007ff9e58bd417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007ff9e58bd650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007ff9e58bd6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007ff9eba1588f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007ff9eb9ba90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007ff9eb9c39b4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x0000555be6354148 in  ()
#28 0x00007ff9eafd9b97 in __libc_start_main (main=0x555be6353870, argc=3, argv=0x7ffddc879478, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffddc879468) at ../csu/libc-start.c:310
#29 0x0000555be63543ca in _start ()

Reported using DrKonqi