Can you please attach a backtrace of the crash? See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports

Application: Discover (plasma-discover), signal: Segmentation fault

[New LWP 1379745]
[New LWP 1379746]
[New LWP 1379747]
[New LWP 1379748]
[New LWP 1379749]
[New LWP 1379750]
[New LWP 1379755]
[New LWP 1379756]
[New LWP 1379817]
[New LWP 1379818]
[New LWP 1379819]
[New LWP 1379823]
[New LWP 1379829]
[New LWP 1379830]
[New LWP 1379831]
[New LWP 1379832]
[New LWP 1379833]
[New LWP 1379937]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/x86_64-pc-linux-gnu/lib/libthread_db.so.1".
0x00007f812d577abf in poll () from /usr/x86_64-pc-linux-gnu/lib/libc.so.6
__preamble__
[Current thread is 1 (Thread 0x7f8126d85100 (LWP 1379744))]

Thread 19 (Thread 0x7f80fa55c640 (LWP 1379937)):
#0  0x00007f812d573c6c in read () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#1  0x00007f812c1ed05f in g_wakeup_acknowledge (wakeup=0x7f8087887120) at ../glib-2.68.4/glib/gwakeup.c:210
#2  0x00007f812c1a2a9e in g_main_context_check (context=context@entry=0x563943b35800, max_priority=2147483647, fds=fds@entry=0x563943b35400, n_fds=n_fds@entry=1) at ../glib-2.68.4/glib/gmain.c:3883
#3  0x00007f812c1a2ec5 in g_main_context_iterate (context=context@entry=0x563943b35800, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4128
#4  0x00007f812c1a302f in g_main_context_iteration (context=context@entry=0x563943b35800, may_block=may_block@entry=1) at ../glib-2.68.4/glib/gmain.c:4196
#5  0x00007f80fa568f1d in dconf_gdbus_worker_thread (user_data=0x563943b35800) at ../dconf-0.40.0/gdbus/dconf-gdbus-thread.c:82
#6  0x00007f812c1caa5d in g_thread_proxy (data=0x7f80875ab460) at ../glib-2.68.4/glib/gthread.c:826
#7  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#8  0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 18 (Thread 0x7f80b6ffd640 (LWP 1379833)):
#0  0x00007f812d573c6c in read () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#1  0x00007f812c1ed05f in g_wakeup_acknowledge (wakeup=0x7f80a0001600) at ../glib-2.68.4/glib/gwakeup.c:210
#2  0x00007f812c1a2a9e in g_main_context_check (context=context@entry=0x7f80a0000c20, max_priority=2147483647, fds=fds@entry=0x7f80a0011d30, n_fds=n_fds@entry=1) at ../glib-2.68.4/glib/gmain.c:3883
#3  0x00007f812c1a2ec5 in g_main_context_iterate (context=context@entry=0x7f80a0000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4128
#4  0x00007f812c1a302f in g_main_context_iteration (context=0x7f80a0000c20, may_block=1) at ../glib-2.68.4/glib/gmain.c:4196
#5  0x00007f812db8a84b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#6  0x00007f812db35c53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#7  0x00007f812d96971e in QThread::exec() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#8  0x00007f812d96a6bf in QThreadPrivate::start(void*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#9  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#10 0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 17 (Thread 0x7f80b77fe640 (LWP 1379832)):
#0  0x00007f812c1a24b7 in g_main_context_prepare (context=context@entry=0x7f80ac000c20, priority=priority@entry=0x7f80b77fda78) at ../glib-2.68.4/glib/gmain.c:3648
#1  0x00007f812c1a2e4b in g_main_context_iterate (context=context@entry=0x7f80ac000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4111
#2  0x00007f812c1a302f in g_main_context_iteration (context=0x7f80ac000c20, may_block=1) at ../glib-2.68.4/glib/gmain.c:4196
#3  0x00007f812db8a84b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#4  0x00007f812db35c53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#5  0x00007f812d96971e in QThread::exec() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#6  0x00007f812d96a6bf in QThreadPrivate::start(void*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#7  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#8  0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 16 (Thread 0x7f80b7fff640 (LWP 1379831)):
#0  0x00007f812c1a0fc2 in g_source_iter_next (iter=iter@entry=0x7f80b7ffea00, source=source@entry=0x7f80b7ffe9f8) at ../glib-2.68.4/glib/gmain.c:1035
#1  0x00007f812c1a240b in g_main_context_prepare (context=context@entry=0x7f80a8000c20, priority=priority@entry=0x7f80b7ffea78) at ../glib-2.68.4/glib/gmain.c:3631
#2  0x00007f812c1a2e4b in g_main_context_iterate (context=context@entry=0x7f80a8000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4111
#3  0x00007f812c1a302f in g_main_context_iteration (context=0x7f80a8000c20, may_block=1) at ../glib-2.68.4/glib/gmain.c:4196
#4  0x00007f812db8a84b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#5  0x00007f812db35c53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#6  0x00007f812d96971e in QThread::exec() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#7  0x00007f812d96a6bf in QThreadPrivate::start(void*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#8  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#9  0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 15 (Thread 0x7f80e18bd640 (LWP 1379830)):
#0  0x00007f812c1a1013 in g_source_iter_next (iter=iter@entry=0x7f80e18bca00, source=source@entry=0x7f80e18bc9f8) at ../glib-2.68.4/glib/gmain.c:1060
#1  0x00007f812c1a28fb in g_main_context_check (context=context@entry=0x7f80b0000c20, max_priority=2147483647, fds=fds@entry=0x7f80b0001910, n_fds=-510932488, n_fds@entry=1) at ../glib-2.68.4/glib/gmain.c:3931
#2  0x00007f812c1a2ec5 in g_main_context_iterate (context=context@entry=0x7f80b0000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4128
#3  0x00007f812c1a302f in g_main_context_iteration (context=0x7f80b0000c20, may_block=1) at ../glib-2.68.4/glib/gmain.c:4196
#4  0x00007f812db8a84b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#5  0x00007f812db35c53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#6  0x00007f812d96971e in QThread::exec() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#7  0x00007f812d96a6bf in QThreadPrivate::start(void*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#8  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#9  0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 14 (Thread 0x7f80e0980640 (LWP 1379829)):
#0  0x00007f812d573c6c in read () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#1  0x00007f812c1ed05f in g_wakeup_acknowledge (wakeup=0x7f80d97ea450) at ../glib-2.68.4/glib/gwakeup.c:210
#2  0x00007f812c1a2a9e in g_main_context_check (context=context@entry=0x7f80cc000c50, max_priority=2147483647, fds=fds@entry=0x7f80cc00f070, n_fds=n_fds@entry=1) at ../glib-2.68.4/glib/gmain.c:3883
#3  0x00007f812c1a2ec5 in g_main_context_iterate (context=context@entry=0x7f80cc000c50, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4128
#4  0x00007f812c1a302f in g_main_context_iteration (context=0x7f80cc000c50, may_block=1) at ../glib-2.68.4/glib/gmain.c:4196
#5  0x00007f812db8a84b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#6  0x00007f812db35c53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#7  0x00007f812d96971e in QThread::exec() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#8  0x00007f812d96a6bf in QThreadPrivate::start(void*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#9  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#10 0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 13 (Thread 0x7f80e20be640 (LWP 1379823)):
#0  0x00007f812d577abf in poll () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#1  0x00007f812c1a2f1e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f80d40329c0, timeout=<optimized out>, context=0x7f80d4000c50) at ../glib-2.68.4/glib/gmain.c:4434
#2  g_main_context_iterate (context=context@entry=0x7f80d4000c50, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4126
#3  0x00007f812c1a302f in g_main_context_iteration (context=0x7f80d4000c50, may_block=1) at ../glib-2.68.4/glib/gmain.c:4196
#4  0x00007f812db8a84b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#5  0x00007f812db35c53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#6  0x00007f812d96971e in QThread::exec() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#7  0x00007f812d96a6bf in QThreadPrivate::start(void*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#8  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#9  0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 12 (Thread 0x7f80e2c4f640 (LWP 1379819)):
#0  0x00007f812d577abf in poll () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#1  0x00007f812c1a2f1e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f80c80019d0, timeout=<optimized out>, context=0x7f80c8000c50) at ../glib-2.68.4/glib/gmain.c:4434
#2  g_main_context_iterate (context=context@entry=0x7f80c8000c50, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4126
#3  0x00007f812c1a302f in g_main_context_iteration (context=0x7f80c8000c50, may_block=1) at ../glib-2.68.4/glib/gmain.c:4196
#4  0x00007f812db8a84b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#5  0x00007f812db35c53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#6  0x00007f812d96971e in QThread::exec() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#7  0x00007f812d96a6bf in QThreadPrivate::start(void*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#8  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#9  0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 11 (Thread 0x7f80f89b1640 (LWP 1379818)):
#0  0x00007f812d4fee2a in __futex_abstimed_wait_common () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#1  0x00007f812d5014f8 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#2  0x00007f812d97008b in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#3  0x00007f812f5a2a17 in QSGRenderThread::processEventsAndWaitForMore() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Quick.so.5
#4  0x00007f812f5a4c89 in QSGRenderThread::run() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Quick.so.5
#5  0x00007f812d96a6bf in QThreadPrivate::start(void*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#6  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#7  0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 10 (Thread 0x7f80f9d5b640 (LWP 1379817)):
#0  0x00007f812d577abf in poll () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#1  0x00007f812c1a2f1e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f80e8007690, timeout=<optimized out>, context=0x7f80e8020740) at ../glib-2.68.4/glib/gmain.c:4434
#2  g_main_context_iterate (context=context@entry=0x7f80e8020740, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4126
#3  0x00007f812c1a302f in g_main_context_iteration (context=0x7f80e8020740, may_block=1) at ../glib-2.68.4/glib/gmain.c:4196
#4  0x00007f812db8a84b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#5  0x00007f812db35c53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#6  0x00007f812d96971e in QThread::exec() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#7  0x00007f812d96a6bf in QThreadPrivate::start(void*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#8  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#9  0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 9 (Thread 0x7f80fada8640 (LWP 1379756)):
#0  0x00007f812d577abf in poll () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#1  0x00007f812c1a2f1e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x563942e1c860, timeout=<optimized out>, context=0x563942e1c9e0) at ../glib-2.68.4/glib/gmain.c:4434
#2  g_main_context_iterate (context=0x563942e1c9e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4126
#3  0x00007f812c1a3243 in g_main_loop_run (loop=0x563942e1cad0) at ../glib-2.68.4/glib/gmain.c:4329
#4  0x00007f812bddd0a6 in gdbus_shared_thread_func (user_data=0x563942e1c9b0) at ../glib-2.68.4/gio/gdbusprivate.c:280
#5  0x00007f812c1caa5d in g_thread_proxy (data=0x563942e12520) at ../glib-2.68.4/glib/gthread.c:826
#6  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#7  0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 8 (Thread 0x7f80fb5a9640 (LWP 1379755)):
#0  0x00007f812d577abf in poll () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#1  0x00007f812c1a2f1e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x563942e071f0, timeout=<optimized out>, context=0x563942e0aa60) at ../glib-2.68.4/glib/gmain.c:4434
#2  g_main_context_iterate (context=context@entry=0x563942e0aa60, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4126
#3  0x00007f812c1a302f in g_main_context_iteration (context=0x563942e0aa60, may_block=may_block@entry=1) at ../glib-2.68.4/glib/gmain.c:4196
#4  0x00007f812c1a3071 in glib_worker_main (data=<optimized out>) at ../glib-2.68.4/glib/gmain.c:6089
#5  0x00007f812c1caa5d in g_thread_proxy (data=0x563942e08580) at ../glib-2.68.4/glib/gthread.c:826
#6  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#7  0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 7 (Thread 0x7f81116d3640 (LWP 1379750)):
#0  0x00007f812d573c6c in read () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#1  0x00007f812c1ed05f in g_wakeup_acknowledge (wakeup=0x7f8108003590) at ../glib-2.68.4/glib/gwakeup.c:210
#2  0x00007f812c1a2a9e in g_main_context_check (context=context@entry=0x7f80fc000c20, max_priority=2147483647, fds=fds@entry=0x7f80fc008340, n_fds=n_fds@entry=1) at ../glib-2.68.4/glib/gmain.c:3883
#3  0x00007f812c1a2ec5 in g_main_context_iterate (context=context@entry=0x7f80fc000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4128
#4  0x00007f812c1a302f in g_main_context_iteration (context=0x7f80fc000c20, may_block=1) at ../glib-2.68.4/glib/gmain.c:4196
#5  0x00007f812db8a84b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#6  0x00007f812db35c53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#7  0x00007f812d96971e in QThread::exec() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#8  0x00007f812d96a6bf in QThreadPrivate::start(void*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#9  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#10 0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 6 (Thread 0x7f8111f48640 (LWP 1379749)):
#0  0x00007f812d577abf in poll () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#1  0x00007f812c1a2f1e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f8108004a60, timeout=<optimized out>, context=0x7f8108000c20) at ../glib-2.68.4/glib/gmain.c:4434
#2  g_main_context_iterate (context=context@entry=0x7f8108000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4126
#3  0x00007f812c1a302f in g_main_context_iteration (context=0x7f8108000c20, may_block=1) at ../glib-2.68.4/glib/gmain.c:4196
#4  0x00007f812db8a84b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#5  0x00007f812db35c53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#6  0x00007f812d96971e in QThread::exec() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#7  0x00007f812d96a6bf in QThreadPrivate::start(void*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#8  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#9  0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 5 (Thread 0x7f81137fe640 (LWP 1379748)):
#0  0x00007f812d577abf in poll () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#1  0x00007f812c1a2f1e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f8104004e60, timeout=<optimized out>, context=0x7f8104000c20) at ../glib-2.68.4/glib/gmain.c:4434
#2  g_main_context_iterate (context=context@entry=0x7f8104000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4126
#3  0x00007f812c1a302f in g_main_context_iteration (context=0x7f8104000c20, may_block=1) at ../glib-2.68.4/glib/gmain.c:4196
#4  0x00007f812db8a84b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#5  0x00007f812db35c53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#6  0x00007f812d96971e in QThread::exec() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#7  0x00007f812e77a335 in QQmlThreadPrivate::run() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#8  0x00007f812d96a6bf in QThreadPrivate::start(void*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#9  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#10 0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 4 (Thread 0x7f8113fff640 (LWP 1379747)):
#0  0x00007f812d4fee2a in __futex_abstimed_wait_common () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#1  0x00007f812d5014f8 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#2  0x00007f811edc145b in cnd_wait (mtx=0x56394246e768, cond=0x56394246e790) at ../mesa-21.2.1/include/c11/threads_posix.h:155
#3  util_queue_thread_func (input=input@entry=0x56394253b550) at ../mesa-21.2.1/src/util/u_queue.c:294
#4  0x00007f811edc10e7 in impl_thrd_routine (p=<optimized out>) at ../mesa-21.2.1/include/c11/threads_posix.h:87
#5  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#6  0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 3 (Thread 0x7f8118c28640 (LWP 1379746)):
#0  0x00007f812d4fee2a in __futex_abstimed_wait_common () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#1  0x00007f812d5014f8 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#2  0x00007f811edc145b in cnd_wait (mtx=0x56394253c578, cond=0x56394253c5a0) at ../mesa-21.2.1/include/c11/threads_posix.h:155
#3  util_queue_thread_func (input=input@entry=0x56394253b760) at ../mesa-21.2.1/src/util/u_queue.c:294
#4  0x00007f811edc10e7 in impl_thrd_routine (p=<optimized out>) at ../mesa-21.2.1/include/c11/threads_posix.h:87
#5  0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#6  0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 2 (Thread 0x7f812594b640 (LWP 1379745)):
#0  0x00007f812d573c6c in read () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#1  0x00007f812c1ed05f in g_wakeup_acknowledge (wakeup=0x56394240d5c0) at ../glib-2.68.4/glib/gwakeup.c:210
#2  0x00007f812c1a2a9e in g_main_context_check (context=context@entry=0x7f8120000c20, max_priority=2147483647, fds=fds@entry=0x7f8120005240, n_fds=n_fds@entry=1) at ../glib-2.68.4/glib/gmain.c:3883
#3  0x00007f812c1a2ec5 in g_main_context_iterate (context=context@entry=0x7f8120000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4128
#4  0x00007f812c1a302f in g_main_context_iteration (context=0x7f8120000c20, may_block=1) at ../glib-2.68.4/glib/gmain.c:4196
#5  0x00007f812db8a84b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#6  0x00007f812db35c53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#7  0x00007f812d96971e in QThread::exec() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#8  0x00007f812e9a25af in QDBusConnectionManager::run() () at /usr/x86_64-pc-linux-gnu/lib/libQt5DBus.so.5
#9  0x00007f812d96a6bf in QThreadPrivate::start(void*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#10 0x00007f812d5020bf in start_thread () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6
#11 0x00007f812d584440 in clone3 () at /usr/x86_64-pc-linux-gnu/lib/libc.so.6

Thread 1 (Thread 0x7f8126d85100 (LWP 1379744)):
[KCrash Handler]
#4  0x0000000000000021 in  ()
#5  0x00007f812daf8876 in QConcatenateTablesProxyModel::index(int, int, QModelIndex const&) const () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#6  0x00007f812d0e9c2a in QQmlDMCachedModelData::metaCall(QMetaObject::Call, int, void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5QmlModels.so.5
#7  0x00007f812e60719e in loadProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData const&) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#8  0x00007f812e6082bc in QV4::QObjectWrapper::virtualResolveLookupGetter(QV4::Object const*, QV4::ExecutionEngine*, QV4::Lookup*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#9  0x00007f812e62217d in QV4::Moth::VME::interpret(QV4::CppStackFrame*, QV4::ExecutionEngine*, char const*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#10 0x00007f812e626aff in QV4::Moth::VME::exec(QV4::CppStackFrame*, QV4::ExecutionEngine*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#11 0x00007f812e5be67d in QV4::Function::call(QV4::Value const*, QV4::Value const*, int, QV4::ExecutionContext const*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#12 0x00007f812e737578 in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#13 0x00007f812e73cc14 in QQmlBinding::evaluate(bool*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#14 0x00007f812e740a38 in QQmlNonbindingBinding::doUpdate(QQmlJavaScriptExpression::DeleteWatcher const&, QFlags<QQmlPropertyData::WriteFlag>, QV4::Scope&) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#15 0x00007f812e73e96c in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#16 0x00007f812e74b244 in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#17 0x00007f812e6e817d in QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt&) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#18 0x00007f812e6e85ad in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#19 0x00007f812d1009cb in QQmlDelegateModelPrivate::object(QQmlListCompositor::Group, int, QQmlIncubator::IncubationMode) () at /usr/x86_64-pc-linux-gnu/lib/libQt5QmlModels.so.5
#20 0x00007f812f69f5a0 in QQuickItemViewPrivate::createItem(int, QQmlIncubator::IncubationMode) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Quick.so.5
#21 0x00007f812f6ae0d0 in QQuickListViewPrivate::addVisibleItems(double, double, double, double, bool) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Quick.so.5
#22 0x00007f812f6a05d5 in QQuickItemViewPrivate::refill(double, double) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Quick.so.5
#23 0x00007f812f6a5ad8 in QQuickItemView::componentComplete() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Quick.so.5
#24 0x00007f812e74b559 in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#25 0x00007f812e6e214a in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#26 0x00007f812e6e44e5 in QQmlComponentPrivate::completeCreate() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#27 0x00007f812e6e57eb in QQmlComponent::createObject(QQmlV4Function*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#28 0x00007f812e6e601b in QQmlComponent::qt_metacall(QMetaObject::Call, int, void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#29 0x00007f812e71dbdd in QQmlObjectOrGadget::metacall(QMetaObject::Call, int, void**) const () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#30 0x00007f812e606915 in QV4::QObjectMethod::callInternal(QV4::Value const*, QV4::Value const*, int) const () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#31 0x00007f812e623dc6 in QV4::Moth::VME::interpret(QV4::CppStackFrame*, QV4::ExecutionEngine*, char const*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#32 0x00007f812e626aff in QV4::Moth::VME::exec(QV4::CppStackFrame*, QV4::ExecutionEngine*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#33 0x00007f812e5bf378 in QV4::ArrowFunction::virtualCall(QV4::FunctionObject const*, QV4::Value const*, QV4::Value const*, int) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#34 0x00007f812e635d32 in QV4::Runtime::CallQmlContextPropertyLookup::call(QV4::ExecutionEngine*, unsigned int, QV4::Value*, int) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#35 0x00007f812e622ab3 in QV4::Moth::VME::interpret(QV4::CppStackFrame*, QV4::ExecutionEngine*, char const*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#36 0x00007f812e626aff in QV4::Moth::VME::exec(QV4::CppStackFrame*, QV4::ExecutionEngine*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#37 0x00007f812e5bf378 in QV4::ArrowFunction::virtualCall(QV4::FunctionObject const*, QV4::Value const*, QV4::Value const*, int) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#38 0x00007f812e623dc6 in QV4::Moth::VME::interpret(QV4::CppStackFrame*, QV4::ExecutionEngine*, char const*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#39 0x00007f812e626aff in QV4::Moth::VME::exec(QV4::CppStackFrame*, QV4::ExecutionEngine*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#40 0x00007f812e5bf378 in QV4::ArrowFunction::virtualCall(QV4::FunctionObject const*, QV4::Value const*, QV4::Value const*, int) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#41 0x00007f812e635d32 in QV4::Runtime::CallQmlContextPropertyLookup::call(QV4::ExecutionEngine*, unsigned int, QV4::Value*, int) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#42 0x00007f812e622ab3 in QV4::Moth::VME::interpret(QV4::CppStackFrame*, QV4::ExecutionEngine*, char const*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#43 0x00007f812e626aff in QV4::Moth::VME::exec(QV4::CppStackFrame*, QV4::ExecutionEngine*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#44 0x00007f812e5bf378 in QV4::ArrowFunction::virtualCall(QV4::FunctionObject const*, QV4::Value const*, QV4::Value const*, int) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#45 0x00007f812e623dc6 in QV4::Moth::VME::interpret(QV4::CppStackFrame*, QV4::ExecutionEngine*, char const*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#46 0x00007f812e626aff in QV4::Moth::VME::exec(QV4::CppStackFrame*, QV4::ExecutionEngine*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#47 0x00007f812e5be67d in QV4::Function::call(QV4::Value const*, QV4::Value const*, int, QV4::ExecutionContext const*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#48 0x00007f812e737578 in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#49 0x00007f812e6ed23b in QQmlBoundSignalExpression::evaluate(void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#50 0x00007f812e6ee328 in QQmlBoundSignal_callback(QQmlNotifierEndpoint*, void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#51 0x00007f812e71d6f4 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#52 0x00007f812db6b64f in void doActivate<false>(QObject*, int, void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#53 0x00007f812e6cbda1 in QQmlVMEMetaObject::metaCall(QObject*, QMetaObject::Call, int, void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#54 0x00007f812e60919b in QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData*, QV4::Value const&) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#55 0x00007f812e6096ee in QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#56 0x00007f812e609880 in QV4::QObjectWrapper::virtualPut(QV4::Managed*, QV4::PropertyKey, QV4::Value const&, QV4::Value*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#57 0x00007f812e5d2f12 in QV4::Object::virtualResolveLookupSetter(QV4::Object*, QV4::ExecutionEngine*, QV4::Lookup*, QV4::Value const&) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#58 0x00007f812e62226c in QV4::Moth::VME::interpret(QV4::CppStackFrame*, QV4::ExecutionEngine*, char const*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#59 0x00007f812e626aff in QV4::Moth::VME::exec(QV4::CppStackFrame*, QV4::ExecutionEngine*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#60 0x00007f812e5be67d in QV4::Function::call(QV4::Value const*, QV4::Value const*, int, QV4::ExecutionContext const*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#61 0x00007f812e737578 in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#62 0x00007f812e6ed23b in QQmlBoundSignalExpression::evaluate(void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#63 0x00007f812e6ee328 in QQmlBoundSignal_callback(QQmlNotifierEndpoint*, void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#64 0x00007f812e71d6f4 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#65 0x00007f812db6b64f in void doActivate<false>(QObject*, int, void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#66 0x00007f8125c82d92 in QQuickAction::triggered(QObject*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5QuickTemplates2.so.5
#67 0x00007f8125c83b3a in QQuickActionPrivate::trigger(QObject*, bool) () at /usr/x86_64-pc-linux-gnu/lib/libQt5QuickTemplates2.so.5
#68 0x00007f8125c844eb in QQuickAction::qt_metacall(QMetaObject::Call, int, void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5QuickTemplates2.so.5
#69 0x00007f812e71dbdd in QQmlObjectOrGadget::metacall(QMetaObject::Call, int, void**) const () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#70 0x00007f812e6035e8 in CallPrecise(QQmlObjectOrGadget const&, QQmlPropertyData const&, QV4::ExecutionEngine*, QV4::CallData*, QMetaObject::Call) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#71 0x00007f812e60672b in QV4::QObjectMethod::callInternal(QV4::Value const*, QV4::Value const*, int) const () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#72 0x00007f812e623dc6 in QV4::Moth::VME::interpret(QV4::CppStackFrame*, QV4::ExecutionEngine*, char const*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#73 0x00007f812e626aff in QV4::Moth::VME::exec(QV4::CppStackFrame*, QV4::ExecutionEngine*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#74 0x00007f812e5bf378 in QV4::ArrowFunction::virtualCall(QV4::FunctionObject const*, QV4::Value const*, QV4::Value const*, int) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#75 0x00007f812e635d32 in QV4::Runtime::CallQmlContextPropertyLookup::call(QV4::ExecutionEngine*, unsigned int, QV4::Value*, int) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#76 0x00007f812e622ab3 in QV4::Moth::VME::interpret(QV4::CppStackFrame*, QV4::ExecutionEngine*, char const*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#77 0x00007f812e626aff in QV4::Moth::VME::exec(QV4::CppStackFrame*, QV4::ExecutionEngine*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#78 0x00007f812e5be67d in QV4::Function::call(QV4::Value const*, QV4::Value const*, int, QV4::ExecutionContext const*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#79 0x00007f812e737578 in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#80 0x00007f812e6ed23b in QQmlBoundSignalExpression::evaluate(void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#81 0x00007f812e6ee328 in QQmlBoundSignal_callback(QQmlNotifierEndpoint*, void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#82 0x00007f812e71d6f4 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Qml.so.5
#83 0x00007f812db6b64f in void doActivate<false>(QObject*, int, void**) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#84 0x00007f8125c81cb1 in QQuickAbstractButtonPrivate::handleRelease(QPointF const&) () at /usr/x86_64-pc-linux-gnu/lib/libQt5QuickTemplates2.so.5
#85 0x00007f8125c9dbe1 in QQuickControl::mouseReleaseEvent(QMouseEvent*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5QuickTemplates2.so.5
#86 0x00007f812f5eb7a8 in QQuickItem::event(QEvent*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Quick.so.5
#87 0x00007f812ec6879f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Widgets.so.5
#88 0x00007f812db37018 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#89 0x00007f812f60715e in QQuickWindowPrivate::deliverMouseEvent(QQuickPointerMouseEvent*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Quick.so.5
#90 0x00007f812f6088ba in QQuickWindowPrivate::deliverPointerEvent(QQuickPointerEvent*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Quick.so.5
#91 0x00007f812df14485 in QWindow::event(QEvent*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Gui.so.5
#92 0x00007f812ec6879f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Widgets.so.5
#93 0x00007f812db37018 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#94 0x00007f812df0a1f0 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Gui.so.5
#95 0x00007f812dee1c43 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Gui.so.5
#96 0x00007f8128fb2130 in userEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /usr/x86_64-pc-linux-gnu/lib/libQt5WaylandClient.so.5
#97 0x00007f812c1a2d1a in g_main_dispatch (context=0x5639424352c0) at ../glib-2.68.4/glib/gmain.c:3337
#98 g_main_context_dispatch (context=0x5639424352c0) at ../glib-2.68.4/glib/gmain.c:4055
#99 0x00007f812c1a2f80 in g_main_context_iterate (context=context@entry=0x5639424352c0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.68.4/glib/gmain.c:4131
#100 0x00007f812c1a302f in g_main_context_iteration (context=0x5639424352c0, may_block=1) at ../glib-2.68.4/glib/gmain.c:4196
#101 0x00007f812db8a830 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#102 0x00007f812db35c53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#103 0x00007f812db3d971 in QCoreApplication::exec() () at /usr/x86_64-pc-linux-gnu/lib/libQt5Core.so.5
#104 0x0000563941ac0f3c in main ()
[Inferior 1 (process 1379744) detached]

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
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If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!

Weird, no KDE code is implicated in that backtrace. Looks like it's crashing in the QtQuick garbage collector. Nothing we can do here, I'm afraid. :(

(In reply to Nate Graham from comment #4)
> Weird, no KDE code is implicated in that backtrace. Looks like it's crashing
> in the QtQuick garbage collector. Nothing we can do here, I'm afraid. :(

Thanks, Nate. Perhaps it is due to incompatibilities of related libraries on my system. 
I'll try to get more informations on this.