Application: plasmashell (5.8.7)

Qt Version: 5.9.1
Frameworks Version: 5.37.0
Operating System: Linux 4.13.0+ x86_64
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
chromium and iceweasel were running. I quit chromum first then iceweasel, when plasmashell restarted.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f331e75a100 (LWP 4276))]

Thread 22 (Thread 0x7f321dffb700 (LWP 4573)):
#0  0x00007f3317c3815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f33188156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f3260cb5665 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f3260cb96e8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#17 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#18 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#19 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#20 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#21 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#22 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#23 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#24 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#25 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#26 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#27 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#28 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#29 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#30 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#31 0x00007f3260cb75ab in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#32 0x00007f331881429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007f3317c32494 in start_thread (arg=0x7f321dffb700) at pthread_create.c:333
#34 0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 21 (Thread 0x7f321e7fc700 (LWP 4572)):
#0  0x00007f3317c3815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f33188156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f3260cb5665 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f3260cb96e8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#17 0x00007f3260cb75ab in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#18 0x00007f331881429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f3317c32494 in start_thread (arg=0x7f321e7fc700) at pthread_create.c:333
#20 0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 20 (Thread 0x7f321effd700 (LWP 4571)):
#0  0x00007f3317c3815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f33188156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f3260cb5665 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f3260cb96e8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3260cb75ab in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f331881429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3317c32494 in start_thread (arg=0x7f321effd700) at pthread_create.c:333
#10 0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 19 (Thread 0x7f321f7fe700 (LWP 4570)):
#0  0x00007f3317c3815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f33188156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f3260cb5665 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f3260cb96e8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3260cb75ab in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f331881429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3317c32494 in start_thread (arg=0x7f321f7fe700) at pthread_create.c:333
#10 0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 18 (Thread 0x7f321ffff700 (LWP 4569)):
#0  0x00007f3317c3815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f33188156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f3260cb5665 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f3260cb96e8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3260cb75ab in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f331881429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3317c32494 in start_thread (arg=0x7f321ffff700) at pthread_create.c:333
#10 0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 17 (Thread 0x7f3238908700 (LWP 4568)):
#0  0x00007f3317c3815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f33188156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f3260cb5665 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f3260cb96e8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#17 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#18 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#19 0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#20 0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#21 0x00007f3260cb75ab in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#22 0x00007f331881429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f3317c32494 in start_thread (arg=0x7f3238908700) at pthread_create.c:333
#24 0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 16 (Thread 0x7f3239109700 (LWP 4567)):
#0  0x00007f3317c3815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f33188156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f3260cb5665 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f3260cb96e8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3260cb75ab in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f331881429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3317c32494 in start_thread (arg=0x7f3239109700) at pthread_create.c:333
#10 0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 15 (Thread 0x7f323990a700 (LWP 4566)):
#0  0x00007f3317c3815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f33188156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f3260cb5665 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007f3260cb96e8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f3260cb9742 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f3260cb482d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f3260cb75ab in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f331881429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f3317c32494 in start_thread (arg=0x7f323990a700) at pthread_create.c:333
#12 0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 14 (Thread 0x7f3252172700 (LWP 4560)):
#0  0x00007f331812b66d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f3312ffc119 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3312ffc22c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3318a4a41b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f33189efdba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f331880f3ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f331881429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3317c32494 in start_thread (arg=0x7f3252172700) at pthread_create.c:333
#8  0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 13 (Thread 0x7f3252973700 (LWP 4559)):
#0  0x00007ffcae96c937 in  ()
#1  0x00007ffcae96cbf7 in clock_gettime ()
#2  0x00007f3318141956 in __GI___clock_gettime (clock_id=1, tp=0x7f3252972b50) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f3318a49d31 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3318a48569 in QTimerInfoList::updateCurrentTime() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3318a48b45 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3318a4a18e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3312ffb658 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f3312ffc04b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f3312ffc22c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f3318a4a41b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f33189efdba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f331880f3ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f3252d7fa75 in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#14 0x00007f331881429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f3317c32494 in start_thread (arg=0x7f3252973700) at pthread_create.c:333
#16 0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 12 (Thread 0x7f326840a700 (LWP 4495)):
#0  0x00007f3317c3815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f326f01479b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f326f0144c7 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f3317c32494 in start_thread (arg=0x7f326840a700) at pthread_create.c:333
#4  0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 11 (Thread 0x7f3268c0b700 (LWP 4494)):
#0  0x00007f3317c3815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f326f01479b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f326f0144c7 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f3317c32494 in start_thread (arg=0x7f3268c0b700) at pthread_create.c:333
#4  0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 10 (Thread 0x7f326940c700 (LWP 4493)):
#0  0x00007f3317c3815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f326f01479b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f326f0144c7 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f3317c32494 in start_thread (arg=0x7f326940c700) at pthread_create.c:333
#4  0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 9 (Thread 0x7f3269c0d700 (LWP 4492)):
#0  0x00007f3317c3815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f326f01479b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f326f0144c7 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f3317c32494 in start_thread (arg=0x7f3269c0d700) at pthread_create.c:333
#4  0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 8 (Thread 0x7f326a646700 (LWP 4491)):
#0  0x00007f3317c3815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f326f01479b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f326f0144c7 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f3317c32494 in start_thread (arg=0x7f326a646700) at pthread_create.c:333
#4  0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 7 (Thread 0x7f326ae47700 (LWP 4490)):
#0  0x00007f3317c3815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f326f01479b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f326f0144c7 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f3317c32494 in start_thread (arg=0x7f326ae47700) at pthread_create.c:333
#4  0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 6 (Thread 0x7f32f4be8700 (LWP 4488)):
#0  0x00007f3317c3815f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f331e044634 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f331e044679 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f3317c32494 in start_thread (arg=0x7f32f4be8700) at pthread_create.c:333
#4  0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 5 (Thread 0x7f32f6db6700 (LWP 4484)):
#0  0x00007f331812b66d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f3312ffc119 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3312ffc22c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3318a4a41b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f33189efdba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f331880f3ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f331bbc69d5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f331881429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3317c32494 in start_thread (arg=0x7f32f6db6700) at pthread_create.c:333
#9  0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 4 (Thread 0x7f3304922700 (LWP 4383)):
#0  0x00007f33181276dd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f3313040260 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3312ffbbfb in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3312ffc0c0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3312ffc22c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3318a4a41b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f33189efdba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f331880f3ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f331bbc69d5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f331881429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f3317c32494 in start_thread (arg=0x7f3304922700) at pthread_create.c:333
#11 0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 3 (Thread 0x7f3306a71700 (LWP 4319)):
#0  0x00007f3312ffb583 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3312ffc04b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3312ffc22c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3318a4a41b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f33189efdba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f331880f3ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f331962de45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f331881429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3317c32494 in start_thread (arg=0x7f3306a71700) at pthread_create.c:333
#9  0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 2 (Thread 0x7f3308209700 (LWP 4317)):
#0  0x00007f331812b66d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f331cf7f150 in poll (__timeout=-1, __nfds=1, __fds=0x7f3308208d00) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  0x00007f331cf7f150 in _xcb_conn_wait (c=c@entry=0x5633de367bf0, cond=cond@entry=0x5633de367c30, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:479
#3  0x00007f331cf80ee9 in xcb_wait_for_event (c=0x5633de367bf0) at ../../src/xcb_in.c:693
#4  0x00007f3309f3bf09 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#5  0x00007f331881429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3317c32494 in start_thread (arg=0x7f3308209700) at pthread_create.c:333
#7  0x00007f3318134abf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97

Thread 1 (Thread 0x7f331e75a100 (LWP 4276)):
[KCrash Handler]
#6  0x00007f33189b46f9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f33189b4a5c in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f33189bb2f9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3318a20865 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f331898d2fe in QAbstractItemModel::rowsRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f33189948fb in QAbstractItemModel::endRemoveRows() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f32602ea408 in  () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.6
#13 0x00007f32602ed409 in  () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.6
#14 0x00007f3318a20865 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f331898d27e in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f33189941db in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f33189b8ae5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f33189b8c83 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f33189bb2d8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f3318a20865 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f331898d27e in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f33189941db in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f326207711f in  () at /usr/lib/x86_64-linux-gnu/libKF5ItemModels.so.5
#24 0x00007f32620774e1 in  () at /usr/lib/x86_64-linux-gnu/libKF5ItemModels.so.5
#25 0x00007f3318a20865 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f331898d27e in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f33189941db in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f33189b05d1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f3318a20865 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f331898d27e in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f33189941db in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007f3260303e18 in TaskManager::XWindowTasksModel::Private::removeWindow(unsigned long long) () at /usr/lib/x86_64-linux-gnu/libtaskmanager.so.6
#33 0x00007f3318a2097f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f331b6db8a2 in KWindowSystem::windowRemoved(unsigned long long) () at /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5
#35 0x00007f3304d41fe9 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so
#36 0x00007f331b6d40cc in NETRootInfo::update(QFlags<NET::Property>, QFlags<NET::Property2>) () at /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5
#37 0x00007f331b6d4e02 in NETRootInfo::event(xcb_generic_event_t*, QFlags<NET::Property>*, QFlags<NET::Property2>*) () at /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5
#38 0x00007f331b6d5165 in NETRootInfo::event(xcb_generic_event_t*, unsigned long*, int) () at /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5
#39 0x00007f3304d4172d in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so
#40 0x00007f33189ee94f in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00007f3309f3d480 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#42 0x00007f3309f3e10c in QXcbConnection::processXcbEvents() () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#43 0x00007f3318a213d2 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#44 0x00007f33199f646c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#45 0x00007f33199fdd34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#46 0x00007f33189f1d68 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#47 0x00007f33189f44dd in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#48 0x00007f3318a4add3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#49 0x00007f3312ffbf67 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#50 0x00007f3312ffc1a0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007f3312ffc22c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007f3318a4a3ff in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#53 0x00007f33189efdba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#54 0x00007f33189f8d24 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#55 0x00005633dc5c22df in  ()
#56 0x00007f331806c2e1 in __libc_start_main (main=0x5633dc5c1780, argc=2, argv=0x7ffcae8cc298, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffcae8cc288) at ../csu/libc-start.c:291
#57 0x00005633dc5c265a in _start ()

Reported using DrKonqi