Application: plasma-discover (5.14.5)

Qt Version: 5.11.2
Frameworks Version: 5.54.0
Operating System: Linux 4.15.0-43-generic x86_64
Distribution: KDE neon User Edition 5.14

-- Information about the crash:
After a fresh reboot (because Discover crashed before the reboot as well) staring Discover when clicking on the updates icon in the tray and clicking the "View updates" button the Discover GUI opens but immediately a message appears that the application has crashed.

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 0x7fd40d71a200 (LWP 19280))]

Thread 26 (Thread 0x7fd371f52700 (LWP 19306)):
#0  0x00007fd408c7e839 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fd409380594 in QSemaphore::acquire(int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fd409587310 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fd40708b38b in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#4  0x00007fd40712526d in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#5  0x00007fd409587075 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd407080fa9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#7  0x00007fd407081865 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#8  0x00007fd409587075 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fd40711ee9f in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#10 0x00007fd40711b9c0 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007fd40711bd55 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#12 0x00007fd407100451 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#13 0x00007fd409587075 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fd4070c8ce3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#15 0x00007fd4070c8d94 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#16 0x00007fd4070dc651 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#17 0x00007fd40ab73e1c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007fd40ab7b3ef in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007fd409557fe8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007fd4095b2c7d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007fd4031e1387 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fd4031e15c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fd4031e164c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fd4095b204b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007fd40955630a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007fd409381bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fd40938cadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007fd40537d6db in start_thread (arg=0x7fd371f52700) at pthread_create.c:463
#29 0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7fd38147c700 (LWP 19305)):
#0  0x00007fd408c77bf9 in __GI___poll (fds=0x563dfc5d55d0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd4031e1539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd4031e18d2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd38faf2026 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fd403209105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd40537d6db in start_thread (arg=0x7fd38147c700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7fd381c7d700 (LWP 19304)):
#0  0x00007fd408c730b4 in __GI___libc_read (fd=15, buf=0x7fd381c7cce0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fd403225cd0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd4031e1027 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd4031e14e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd4031e164c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd4031e1691 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fd403209105 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fd40537d6db in start_thread (arg=0x7fd381c7d700) at pthread_create.c:463
#8  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7fd3834c0700 (LWP 19302)):
#0  0x00007fd408c77bf9 in __GI___poll (fds=0x7fd37c0049b0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd4031e1539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd4031e164c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd4095b204b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fd40955630a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd409381bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd40938cadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fd40537d6db in start_thread (arg=0x7fd3834c0700) at pthread_create.c:463
#8  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fd38cad2700 (LWP 19301)):
#0  0x00007fd408c77bf9 in __GI___poll (fds=0x7fd384004e10, nfds=1, timeout=9932) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd4031e1539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd4031e164c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd4095b204b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fd40955630a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd409381bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd40938cadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fd40537d6db in start_thread (arg=0x7fd38cad2700) at pthread_create.c:463
#8  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fd3d0dea700 (LWP 19300)):
#0  0x00007fd4031e1438 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fd4031e164c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd4095b204b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fd40955630a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fd409381bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd40c991826 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fd40938cadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fd40537d6db in start_thread (arg=0x7fd3d0dea700) at pthread_create.c:463
#8  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fd3d1ffb700 (LWP 19299)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf1194c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf118f8, cond=0x563dfbf11920) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf11920, mutex=0x563dfbf118f8) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3d1ffb700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fd3d27fc700 (LWP 19298)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf117e4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf11790, cond=0x563dfbf117b8) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf117b8, mutex=0x563dfbf11790) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3d27fc700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fd3d2ffd700 (LWP 19297)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf1167c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf11628, cond=0x563dfbf11650) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf11650, mutex=0x563dfbf11628) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3d2ffd700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fd3d37fe700 (LWP 19296)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf11514) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf114c0, cond=0x563dfbf114e8) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf114e8, mutex=0x563dfbf114c0) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3d37fe700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fd3d8fbf700 (LWP 19295)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf113ac) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf11358, cond=0x563dfbf11380) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf11380, mutex=0x563dfbf11358) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3d8fbf700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fd3d97c0700 (LWP 19294)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf11244) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf111f0, cond=0x563dfbf11218) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf11218, mutex=0x563dfbf111f0) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3d97c0700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fd3d9fc1700 (LWP 19293)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf110dc) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf11088, cond=0x563dfbf110b0) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf110b0, mutex=0x563dfbf11088) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3d9fc1700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fd3da7c2700 (LWP 19292)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf10f74) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf10f20, cond=0x563dfbf10f48) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf10f48, mutex=0x563dfbf10f20) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3da7c2700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fd3dafc3700 (LWP 19291)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf10e0c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf10db8, cond=0x563dfbf10de0) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf10de0, mutex=0x563dfbf10db8) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3dafc3700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fd3db7c4700 (LWP 19290)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf10ca4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf10c50, cond=0x563dfbf10c78) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf10c78, mutex=0x563dfbf10c50) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3db7c4700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fd3dbfc5700 (LWP 19289)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf10b3c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf10ae8, cond=0x563dfbf10b10) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf10b10, mutex=0x563dfbf10ae8) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3dbfc5700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fd3d3fff700 (LWP 19288)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf109d4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf10980, cond=0x563dfbf109a8) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf109a8, mutex=0x563dfbf10980) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3d3fff700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fd3dc7c6700 (LWP 19287)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf1086c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf10818, cond=0x563dfbf10840) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf10840, mutex=0x563dfbf10818) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3dc7c6700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fd3dcfc7700 (LWP 19286)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf10704) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf106b0, cond=0x563dfbf106d8) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf106d8, mutex=0x563dfbf106b0) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3dcfc7700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fd3dd7c8700 (LWP 19285)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf1059c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf10548, cond=0x563dfbf10570) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf10570, mutex=0x563dfbf10548) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3dd7c8700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fd3ddfc9700 (LWP 19284)):
#0  0x00007fd4053839f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x563dfbf10434) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fd4053839f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x563dfbf103e0, cond=0x563dfbf10408) at pthread_cond_wait.c:502
#2  0x00007fd4053839f3 in __pthread_cond_wait (cond=0x563dfbf10408, mutex=0x563dfbf103e0) at pthread_cond_wait.c:655
#3  0x00007fd3e30add5b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#4  0x00007fd3e30adbd7 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3ddfc9700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fd3f12c2700 (LWP 19283)):
#0  0x00007ffc9dfa1979 in  ()
#1  0x00007ffc9dfa1c30 in clock_gettime ()
#2  0x00007fd408c93ea6 in __GI___clock_gettime (clock_id=1, tp=0x7fd3f12c1af0) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007fd4095b1951 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fd4095b0189 in QTimerInfoList::updateCurrentTime() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd4095b0765 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd4095b1dae in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fd4031e0a98 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fd4031e146b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fd4031e164c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fd4095b204b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fd40955630a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fd409381bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fd409f294f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#14 0x00007fd40938cadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fd40537d6db in start_thread (arg=0x7fd3f12c2700) at pthread_create.c:463
#16 0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fd3f24d3700 (LWP 19282)):
#0  0x00007fd408c730b4 in __GI___libc_read (fd=7, buf=0x7fd3f24d2b60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fd403225cd0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd4031e1027 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd4031e14e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd4031e164c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd4095b204b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd40955630a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fd409381bba in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fd40b283e45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007fd40938cadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fd40537d6db in start_thread (arg=0x7fd3f24d3700) at pthread_create.c:463
#11 0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fd3fac9f700 (LWP 19281)):
#0  0x00007fd408c77bf9 in __GI___poll (fds=0x7fd3fac9eca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd402916747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fd40291836a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fd3fdc5fed9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fd40938cadb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd40537d6db in start_thread (arg=0x7fd3fac9f700) at pthread_create.c:463
#6  0x00007fd408c8488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fd40d71a200 (LWP 19280)):
[KCrash Handler]
#6  0x00007fd40c62ad62 in AbstractResource::reportNewState() () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#7  0x00007fd40958718f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fd381ea8cb5 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/fwupd-backend.so
#9  0x00007fd381ea94e7 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/fwupd-backend.so
#10 0x00007fd381ea9dc1 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/fwupd-backend.so
#11 0x00007fd40958718f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fd40938a223 in QFutureWatcherBase::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fd40ab73e1c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007fd40ab7b3ef in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007fd409557fe8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fd40955ab2d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fd4095b29f3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007fd4031e1387 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fd4031e15c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fd4031e164c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fd4095b202f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007fd3fdceb761 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#23 0x00007fd40955630a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007fd40955f4d0 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x0000563dfb4a2868 in  ()
#26 0x00007fd408b84b97 in __libc_start_main (main=0x563dfb4a1f90, argc=1, argv=0x7ffc9dea1968, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc9dea1958) at ../csu/libc-start.c:310
#27 0x0000563dfb4a2aea in _start ()

Reported using DrKonqi