Application: plasma-discover (5.14.5)

Qt Version: 5.11.2
Frameworks Version: 5.53.0
Operating System: Linux 4.15.0-43-generic x86_64
Distribution: KDE neon User Edition 5.14

-- Information about the crash:
Updated to Plasma 5.14.5 through Discover. Everything OK. Rebooted (due to something else). After reboot Discover crashes when it autostarts after login. I try to restart the application but it crashes again and again

The crash can be reproduced every time.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fdcbfc0f200 (LWP 3443))]

Thread 11 (Thread 0x7fdc6724e700 (LWP 3459)):
#0  0x00007fdcbb16fbf9 in __GI___poll (fds=0x7fdc540018a0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fdcb56d9539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdcb56d964c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdcbbaaa04b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdcbba4e30a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdcbb879bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdcbb884adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdcb78756db in start_thread (arg=0x7fdc6724e700) at pthread_create.c:463
#8  0x00007fdcbb17c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fdc6fd95700 (LWP 3453)):
#0  0x00007fdcbb16fbf9 in __GI___poll (fds=0x7fdc68003d80, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fdcb56d9539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdcb56d964c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdcbbaaa04b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdcbba4e30a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdcbb879bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdcbb884adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdcb78756db in start_thread (arg=0x7fdc6fd95700) at pthread_create.c:463
#8  0x00007fdcbb17c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fdc7d3bf700 (LWP 3452)):
#0  0x00007fdcbb16fbf9 in __GI___poll (fds=0x7fdc74003ce0, nfds=1, timeout=9968) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fdcb56d9539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdcb56d964c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdcbbaaa04b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdcbba4e30a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdcbb879bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdcbb884adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdcb78756db in start_thread (arg=0x7fdc7d3bf700) at pthread_create.c:463
#8  0x00007fdcbb17c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fdc7e488700 (LWP 3451)):
#0  0x00007fdcbb16b0b4 in __GI___libc_read (fd=18, buf=0x7fdc7e487cd0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fdcb571dcd0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdcb56d9027 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdcb56d94e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdcb56d98d2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdc85473026 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007fdcb5701105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fdcb78756db in start_thread (arg=0x7fdc7e488700) at pthread_create.c:463
#8  0x00007fdcbb17c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fdc7ec89700 (LWP 3450)):
#0  0x00007fdcbb16b0b4 in __GI___libc_read (fd=16, buf=0x7fdc7ec88ce0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fdcb571dcd0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdcb56d9027 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdcb56d94e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdcb56d964c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdcb56d9691 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fdcb5701105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fdcb78756db in start_thread (arg=0x7fdc7ec89700) at pthread_create.c:463
#8  0x00007fdcbb17c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fdc8e905700 (LWP 3449)):
#0  0x00007fdcbb16fbf9 in __GI___poll (fds=0x7fdc80004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fdcb56d9539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdcb56d964c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdcbbaaa04b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdcbba4e30a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdcbb879bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdcbee87826 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fdcbb884adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdcb78756db in start_thread (arg=0x7fdc8e905700) at pthread_create.c:463
#9  0x00007fdcbb17c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fdc8fd21700 (LWP 3447)):
#0  0x00007fdcb787b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560442a2e0d8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fdcb787b9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x560442a2e088, cond=0x560442a2e0b0) at pthread_cond_wait.c:502
#2  0x00007fdcb787b9f3 in __pthread_cond_wait (cond=0x560442a2e0b0, mutex=0x560442a2e088) at pthread_cond_wait.c:655
#3  0x00007fdc9926e46b in  () at /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#4  0x00007fdc9926e197 in  () at /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#5  0x00007fdcb78756db in start_thread (arg=0x7fdc8fd21700) at pthread_create.c:463
#6  0x00007fdcbb17c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fdca353f700 (LWP 3446)):
#0  0x00007fdcb571f060 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdcb56d8a88 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdcb56d946b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdcb56d964c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdcbbaaa04b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdcbba4e30a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdcbb879bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdcbc4204f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fdcbb884adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdcb78756db in start_thread (arg=0x7fdca353f700) at pthread_create.c:463
#10 0x00007fdcbb17c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fdca4750700 (LWP 3445)):
#0  0x00007fdcb571f064 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdcb56d8a88 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdcb56d946b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdcb56d964c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdcbbaaa04b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdcbba4e30a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdcbb879bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdcbd77ae45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007fdcbb884adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdcb78756db in start_thread (arg=0x7fdca4750700) at pthread_create.c:463
#10 0x00007fdcbb17c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fdcad016700 (LWP 3444)):
#0  0x00007fdcbb16fbf9 in __GI___poll (fds=0x7fdcad015ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fdcb4e0d747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fdcb4e0f36a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fdcaffd6ed9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fdcbb884adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdcb78756db in start_thread (arg=0x7fdcad016700) at pthread_create.c:463
#6  0x00007fdcbb17c88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fdcbfc0f200 (LWP 3443)):
[KCrash Handler]
#6  0x00007fdcbeb20d62 in AbstractResource::reportNewState() () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#7  0x00007fdcbba7f18f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdc8596dcb5 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/fwupd-backend.so
#9  0x00007fdc8596e4e7 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/fwupd-backend.so
#10 0x00007fdc8596edc1 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/fwupd-backend.so
#11 0x00007fdcbba7f18f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fdcbb882223 in QFutureWatcherBase::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fdcbd06ae1c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007fdcbd0723ef in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007fdcbba4ffe8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fdcbba52b2d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fdcbbaaa9f3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007fdcb56d9387 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fdcb56d95c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fdcb56d964c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fdcbbaaa02f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007fdcb0062761 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#23 0x00007fdcbba4e30a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007fdcbba574d0 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x0000560441e9b868 in  ()
#26 0x00007fdcbb07cb97 in __libc_start_main (main=0x560441e9af90, argc=1, argv=0x7ffc9c46b9e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc9c46b9d8) at ../csu/libc-start.c:310
#27 0x0000560441e9baea in _start ()

Reported using DrKonqi