Application: plasmashell (5.16.5)

Qt Version: 5.12.4
Frameworks Version: 5.62.0
Operating System: Linux 5.3.0-19-generic x86_64
Distribution: Ubuntu 19.10

-- Information about the crash:
I was trying to connect/disconnect a VPN using the network icon in the system tray. Not entirely sure what happened, and I haven't been able to reproduce it I'm afraid.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55979cfd7174) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
[Current thread is 1 (Thread 0x7f01658bb880 (LWP 3433))]

Thread 21 (Thread 0x7f00f3fff700 (LWP 6323)):
#0  0x00007f01685e02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55979ccab7d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007f01685e02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55979ccab780, cond=0x55979ccab7a8) at pthread_cond_wait.c:508
#2  0x00007f01685e02c6 in __pthread_cond_wait (cond=0x55979ccab7a8, mutex=0x55979ccab780) at pthread_cond_wait.c:638
#3  0x00007f016915cdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f016915cee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f014a853ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f014a857c3e in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f014a853072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f014a855b83 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f0108a84700 (LWP 6322)):
#0  0x00007f01685e02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55979ccab7d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007f01685e02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55979ccab780, cond=0x55979ccab7a8) at pthread_cond_wait.c:508
#2  0x00007f01685e02c6 in __pthread_cond_wait (cond=0x55979ccab7a8, mutex=0x55979ccab780) at pthread_cond_wait.c:638
#3  0x00007f016915cdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f016915cee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f014a853ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f014a857c3e in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f014a853072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f014a855b83 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f0109285700 (LWP 6321)):
#0  0x00007f01685e02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55979ccab7d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007f01685e02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55979ccab780, cond=0x55979ccab7a8) at pthread_cond_wait.c:508
#2  0x00007f01685e02c6 in __pthread_cond_wait (cond=0x55979ccab7a8, mutex=0x55979ccab780) at pthread_cond_wait.c:638
#3  0x00007f016915cdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f016915cee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f014a853ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f014a857c3e in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f014a853072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f014a855b83 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f0109a86700 (LWP 6320)):
#0  0x00007f01685e02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55979ccab7d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007f01685e02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55979ccab780, cond=0x55979ccab7a8) at pthread_cond_wait.c:508
#2  0x00007f01685e02c6 in __pthread_cond_wait (cond=0x55979ccab7a8, mutex=0x55979ccab780) at pthread_cond_wait.c:638
#3  0x00007f016915cdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f016915cee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f014a853ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f014a857c3e in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f014a853072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f014a855b83 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f010a287700 (LWP 6319)):
#0  0x00007f01685e02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55979ccab7d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007f01685e02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55979ccab780, cond=0x55979ccab7a8) at pthread_cond_wait.c:508
#2  0x00007f01685e02c6 in __pthread_cond_wait (cond=0x55979ccab7a8, mutex=0x55979ccab780) at pthread_cond_wait.c:638
#3  0x00007f016915cdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f016915cee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f014a853ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f014a857c3e in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f014a853072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f014a857c99 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f014a853072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f014a857c99 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f014a853072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f014a857c99 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f014a853072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f014a857c99 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007f014a853072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00007f014a857c99 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#17 0x00007f014a853072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#18 0x00007f014a855b83 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#19 0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#21 0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f010aa88700 (LWP 6318)):
#0  0x00007f01685e02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55979ccab7d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007f01685e02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55979ccab780, cond=0x55979ccab7a8) at pthread_cond_wait.c:508
#2  0x00007f01685e02c6 in __pthread_cond_wait (cond=0x55979ccab7a8, mutex=0x55979ccab780) at pthread_cond_wait.c:638
#3  0x00007f016915cdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f016915cee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f014a853ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f014a857c3e in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f014a853072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f014a855b83 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f010b289700 (LWP 6317)):
#0  0x00007f01685e02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55979ccab7d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007f01685e02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55979ccab780, cond=0x55979ccab7a8) at pthread_cond_wait.c:508
#2  0x00007f01685e02c6 in __pthread_cond_wait (cond=0x55979ccab7a8, mutex=0x55979ccab780) at pthread_cond_wait.c:638
#3  0x00007f016915cdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f016915cee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f014a853ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f014a857c3e in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f014a853072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f014a855b83 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f010ba8a700 (LWP 6316)):
#0  0x00007f01685e02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55979ccab7d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007f01685e02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55979ccab780, cond=0x55979ccab7a8) at pthread_cond_wait.c:508
#2  0x00007f01685e02c6 in __pthread_cond_wait (cond=0x55979ccab7a8, mutex=0x55979ccab780) at pthread_cond_wait.c:638
#3  0x00007f016915cdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f016915cee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f014a853ea0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f014a857c3e in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f014a853072 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f014a855b83 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#11 0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f0111421700 (LWP 6309)):
#0  0x00007f01685e02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55979a356cc4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007f01685e02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55979a356c70, cond=0x55979a356c98) at pthread_cond_wait.c:508
#2  0x00007f01685e02c6 in __pthread_cond_wait (cond=0x55979a356c98, mutex=0x55979a356c70) at pthread_cond_wait.c:638
#3  0x00007f016915cdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f016915cee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f016af757b9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f016af75a1a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f013970b700 (LWP 6296)):
[KCrash Handler]
#6  0x00007f0156150178 in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kquickcontrolsaddons/libkquickcontrolsaddonsplugin.so
#7  0x00007f01693495c8 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f016afcaba4 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f016af71c68 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f016af759d8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#13 0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f0138b1d700 (LWP 6073)):
#0  0x00007f01685e02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55979b4e5154) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007f01685e02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55979b4e5100, cond=0x55979b4e5128) at pthread_cond_wait.c:508
#2  0x00007f01685e02c6 in __pthread_cond_wait (cond=0x55979b4e5128, mutex=0x55979b4e5100) at pthread_cond_wait.c:638
#3  0x00007f016915cdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f016915cee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f016af757b9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f016af75a1a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f013a0e7700 (LWP 4640)):
#0  0x00007f01685e02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55979a3c11c4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007f01685e02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55979a3c1170, cond=0x55979a3c1198) at pthread_cond_wait.c:508
#2  0x00007f01685e02c6 in __pthread_cond_wait (cond=0x55979a3c1198, mutex=0x55979a3c1170) at pthread_cond_wait.c:638
#3  0x00007f016915cdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f016915cee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f016af757b9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f016af75a1a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f013ae1b700 (LWP 3934)):
#0  0x00007f01685e02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f01580df370) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007f01685e02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f01580df320, cond=0x7f01580df348) at pthread_cond_wait.c:508
#2  0x00007f01685e02c6 in __pthread_cond_wait (cond=0x7f01580df348, mutex=0x7f01580df320) at pthread_cond_wait.c:638
#3  0x00007f016915cdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f016915cee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f016af757b9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f016af75a1a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f013bfff700 (LWP 3796)):
#0  0x00007f01691571c3 in QMutex::unlock() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f01693755c2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f0167afefbf in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0167aff96b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f0167affb73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f01693756c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f016931c63b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f0169155a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f0148aeb700 (LWP 3795)):
#0  0x00007f0167b4bc3d in g_mutex_lock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f0167aff940 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0167affb73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f01693756c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f016931c63b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f0169155a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f01492d701c in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f014bfff700 (LWP 3648)):
#0  0x00007f01685e02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5597964a4d90) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007f01685e02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5597964a4d40, cond=0x5597964a4d68) at pthread_cond_wait.c:508
#2  0x00007f01685e02c6 in __pthread_cond_wait (cond=0x5597964a4d68, mutex=0x5597964a4d40) at pthread_cond_wait.c:638
#3  0x00007f016915cdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f016915cee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f016af757b9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f016af75a1a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f0155e70700 (LWP 3633)):
#0  0x00007f0168dca2ac in __GI___libc_read (nbytes=16, buf=0x7f0155e6fad0, fd=15) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f0168dca2ac in __GI___libc_read (fd=15, buf=0x7f0155e6fad0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f0167b4763f in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0167aff58e in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f0167aff9e2 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f0167affb73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f01693756c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f016931c63b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0169155a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f016aeed8aa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#12 0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f0157fff700 (LWP 3581)):
#0  0x00007f01685e02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55979611e708) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007f01685e02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55979611e6b8, cond=0x55979611e6e0) at pthread_cond_wait.c:508
#2  0x00007f01685e02c6 in __pthread_cond_wait (cond=0x55979611e6e0, mutex=0x55979611e6b8) at pthread_cond_wait.c:638
#3  0x00007f015c8d797b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f015c8d759b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f015e9d9700 (LWP 3499)):
#0  0x00007f0167b4bc68 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f0167afefb1 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0167aff96b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0167affb73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f01693756c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f016931c63b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f0169155a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f016ac18319 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f015fc4d700 (LWP 3481)):
#0  0x00007f0168dca2ac in __GI___libc_read (nbytes=16, buf=0x7f015fc4cae0, fd=7) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f0168dca2ac in __GI___libc_read (fd=7, buf=0x7f015fc4cae0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f0167b4763f in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0167aff58e in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f0167aff9e2 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f0167affb73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f01693756c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f016931c63b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0169155a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f0169c3aefa in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007f0169156cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f01685d9669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#12 0x00007f0168ddb323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f01658bb880 (LWP 3433)):
#0  0x00007f01685e02c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55979cfd7174) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007f01685e02c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55979cfd7120, cond=0x55979cfd7148) at pthread_cond_wait.c:508
#2  0x00007f01685e02c6 in __pthread_cond_wait (cond=0x55979cfd7148, mutex=0x55979cfd7120) at pthread_cond_wait.c:638
#3  0x00007f016915cdef in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f016915cee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f016af73d87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f016af74952 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f016afd6726 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f016b743ba3 in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#9  0x00007f0169eb9a86 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f0169ec2e00 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f016931da9a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f01696f8ae4 in QPlatformWindow::windowEvent(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007f0169ec2b7b in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f016931da9a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f0169374a00 in QTimerInfoList::activateTimers() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f0169375324 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f0167aff84d in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f0167affad0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f0167affb73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f01693756a5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f016931c63b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f01693243a6 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x0000559795ad8774 in  ()
#24 0x00007f0168ce01e3 in __libc_start_main (main=0x559795ad7c20, argc=1, argv=0x7ffed7c94448, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffed7c94438) at ../csu/libc-start.c:308
#25 0x0000559795ad8bfe in _start ()
[Inferior 1 (process 3433) detached]

Reported using DrKonqi