Application: plasmashell (5.12.5)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.17.2 x86_64
Distribution: Ubuntu 18.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I typed "start" in the search bar after I opened the start menu. Crash happens when I input the last "t". In such cases, I noticed the first result was always Google Chrome, which is wierd.

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 0x7f9fd0456800 (LWP 1144))]

Thread 16 (Thread 0x7f9ed3fff700 (LWP 1393)):
#0  0x00007f9fc92b49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55894dbb3130) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9fc92b49f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55894dbb30e0, cond=0x55894dbb3108) at pthread_cond_wait.c:502
#2  0x00007f9fc92b49f3 in __pthread_cond_wait (cond=0x55894dbb3108, mutex=0x55894dbb30e0) at pthread_cond_wait.c:655
#3  0x00007f9fca13359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9f0ec63ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9f0ec67ba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9f0ec62c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9f0ec67c02 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9f0ec62c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f9f0ec67c02 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f9f0ec62c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f9f0ec65a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f9fca13216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f9fc92ae6db in start_thread (arg=0x7f9ed3fff700) at pthread_create.c:463
#14 0x00007f9fc9a2888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f9ee8b27700 (LWP 1392)):
#0  0x00007f9fc92b49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55894dbb3130) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9fc92b49f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55894dbb30e0, cond=0x55894dbb3108) at pthread_cond_wait.c:502
#2  0x00007f9fc92b49f3 in __pthread_cond_wait (cond=0x55894dbb3108, mutex=0x55894dbb30e0) at pthread_cond_wait.c:655
#3  0x00007f9fca13359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9f0ec63ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9f0ec67ba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9f0ec62c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9f0ec65a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9fca13216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9fc92ae6db in start_thread (arg=0x7f9ee8b27700) at pthread_create.c:463
#10 0x00007f9fc9a2888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f9ee9328700 (LWP 1391)):
#0  0x00007f9fc92b49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55894dbb3130) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9fc92b49f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55894dbb30e0, cond=0x55894dbb3108) at pthread_cond_wait.c:502
#2  0x00007f9fc92b49f3 in __pthread_cond_wait (cond=0x55894dbb3108, mutex=0x55894dbb30e0) at pthread_cond_wait.c:655
#3  0x00007f9fca13359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9f0ec63ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9f0ec67ba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9f0ec62c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9f0ec65a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9fca13216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9fc92ae6db in start_thread (arg=0x7f9ee9328700) at pthread_create.c:463
#10 0x00007f9fc9a2888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f9ee9b29700 (LWP 1390)):
#0  0x00007f9fc92b49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55894dbb3130) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9fc92b49f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55894dbb30e0, cond=0x55894dbb3108) at pthread_cond_wait.c:502
#2  0x00007f9fc92b49f3 in __pthread_cond_wait (cond=0x55894dbb3108, mutex=0x55894dbb30e0) at pthread_cond_wait.c:655
#3  0x00007f9fca13359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9f0ec63ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9f0ec67ba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9f0ec62c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9f0ec65a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9fca13216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9fc92ae6db in start_thread (arg=0x7f9ee9b29700) at pthread_create.c:463
#10 0x00007f9fc9a2888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f9eea32a700 (LWP 1389)):
#0  0x00007f9fc92b49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55894dbb3130) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9fc92b49f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55894dbb30e0, cond=0x55894dbb3108) at pthread_cond_wait.c:502
#2  0x00007f9fc92b49f3 in __pthread_cond_wait (cond=0x55894dbb3108, mutex=0x55894dbb30e0) at pthread_cond_wait.c:655
#3  0x00007f9fca13359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9f0ec63ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9f0ec67ba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9f0ec62c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9f0ec65a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9fca13216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9fc92ae6db in start_thread (arg=0x7f9eea32a700) at pthread_create.c:463
#10 0x00007f9fc9a2888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f9eeab2b700 (LWP 1388)):
#0  0x00007f9fc92b49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55894dbb3130) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9fc92b49f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55894dbb30e0, cond=0x55894dbb3108) at pthread_cond_wait.c:502
#2  0x00007f9fc92b49f3 in __pthread_cond_wait (cond=0x55894dbb3108, mutex=0x55894dbb30e0) at pthread_cond_wait.c:655
#3  0x00007f9fca13359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9f0ec63ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9f0ec67ba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9f0ec62c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9f0ec65a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9fca13216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9fc92ae6db in start_thread (arg=0x7f9eeab2b700) at pthread_create.c:463
#10 0x00007f9fc9a2888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f9eeb32c700 (LWP 1387)):
#0  0x00007f9fc92b49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55894dbb3130) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9fc92b49f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55894dbb30e0, cond=0x55894dbb3108) at pthread_cond_wait.c:502
#2  0x00007f9fc92b49f3 in __pthread_cond_wait (cond=0x55894dbb3108, mutex=0x55894dbb30e0) at pthread_cond_wait.c:655
#3  0x00007f9fca13359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9f0ec63ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9f0ec67ba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9f0ec62c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9f0ec65a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9fca13216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9fc92ae6db in start_thread (arg=0x7f9eeb32c700) at pthread_create.c:463
#10 0x00007f9fc9a2888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f9eebb2d700 (LWP 1386)):
#0  0x00007f9fc92b49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55894dbb3130) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9fc92b49f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55894dbb30e0, cond=0x55894dbb3108) at pthread_cond_wait.c:502
#2  0x00007f9fc92b49f3 in __pthread_cond_wait (cond=0x55894dbb3108, mutex=0x55894dbb30e0) at pthread_cond_wait.c:655
#3  0x00007f9fca13359b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9f0ec63ad5 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f9f0ec67ba8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f9f0ec62c8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f9f0ec65a6b in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f9fca13216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9fc92ae6db in start_thread (arg=0x7f9eebb2d700) at pthread_create.c:463
#10 0x00007f9fc9a2888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f9f02466700 (LWP 1369)):
#0  0x00007f9fc9a1bbf9 in __GI___poll (fds=0x7f9efc006070, nfds=1, timeout=3331856) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f9fc4585439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9fc458554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9fca36990b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9fca30e9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9fca12d22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9f04dc2747 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f9fca13216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9fc92ae6db in start_thread (arg=0x7f9f02466700) at pthread_create.c:463
#9  0x00007f9fc9a2888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f9f1630a700 (LWP 1350)):
#0  0x00007f9fc45cacf4 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9fc4584988 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9fc458536b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9fc458554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9fca36990b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9fca30e9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9fca12d22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9fcde392a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f9fca13216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9fc92ae6db in start_thread (arg=0x7f9f1630a700) at pthread_create.c:463
#10 0x00007f9fc9a2888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f9fa9a0f700 (LWP 1322)):
#0  0x00007f9fc92b49f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f9fcfe0ffb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9fc92b49f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f9fcfe0ff68, cond=0x7f9fcfe0ff90) at pthread_cond_wait.c:502
#2  0x00007f9fc92b49f3 in __pthread_cond_wait (cond=0x7f9fcfe0ff90, mutex=0x7f9fcfe0ff68) at pthread_cond_wait.c:655
#3  0x00007f9fcfb195f4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f9fcfb19639 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f9fc92ae6db in start_thread (arg=0x7f9fa9a0f700) at pthread_create.c:463
#6  0x00007f9fc9a2888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f9fabbb5700 (LWP 1249)):
#0  0x00007f9fc9a1bbf9 in __GI___poll (fds=0x7f9fa0003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f9fc4585439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9fc458554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9fca36990b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9fca30e9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9fca12d22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9fcd29f6f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f9fca13216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9fc92ae6db in start_thread (arg=0x7f9fabbb5700) at pthread_create.c:463
#9  0x00007f9fc9a2888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f9fb1cf2700 (LWP 1219)):
#0  0x00007f9fc4582415 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9fc4584d62 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9fc45853e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9fc458554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9fca36990b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9fca30e9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9fca12d22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9fcd29f6f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f9fca13216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9fc92ae6db in start_thread (arg=0x7f9fb1cf2700) at pthread_create.c:463
#10 0x00007f9fc9a2888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f9fb3bce700 (LWP 1164)):
#0  0x00007f9fc9a1bbf9 in __GI___poll (fds=0x7f9fac0132b0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f9fc4585439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9fc458554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9fca36990b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9fca30e9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9fca12d22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9fca7e6d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f9fca13216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9fc92ae6db in start_thread (arg=0x7f9fb3bce700) at pthread_create.c:463
#9  0x00007f9fc9a2888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f9fb9ff9700 (LWP 1160)):
#0  0x00007f9fc9a1bbf9 in __GI___poll (fds=0x7f9fb9ff8ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f9fcea45747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f9fcea4736a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f9fbc9922a9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f9fca13216d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9fc92ae6db in start_thread (arg=0x7f9fb9ff9700) at pthread_create.c:463
#6  0x00007f9fc9a2888f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f9fd0456800 (LWP 1144)):
[KCrash Handler]
#6  0x00007f9fca319810 in QMetaObject::methodOffset() const () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9fca33fcbb in QMetaObject::activate(QObject*, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9fcd063704 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f9fcd2c3dba in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f9fcd2ca6cc in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007f9fcd2caac5 in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007f9fca33f679 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f9fca2ab84c in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f9f1467330f in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#15 0x00007f9f1467155e in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#16 0x00007f9f14684ee9 in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#17 0x00007f9fca33f5b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f9f0f7665d2 in Plasma::RunnerManager::matchesChanged(QList<Plasma::QueryMatch> const&) () at /usr/lib/x86_64-linux-gnu/libKF5Runner.so.5
#19 0x00007f9f0f76a643 in  () at /usr/lib/x86_64-linux-gnu/libKF5Runner.so.5
#20 0x00007f9fca33f5b5 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f9fca34c027 in QTimer::timeout(QTimer::QPrivateSignal) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f9fca34c388 in QTimer::timerEvent(QTimerEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f9fca3400db in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f9fcb31882c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f9fcb3200f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f9fca3109a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f9fca368d8e in QTimerInfoList::activateTimers() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f9fca369551 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f9fc4585287 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f9fc45854c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f9fc458554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f9fca3698ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007f9fca30e9ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f9fca317a84 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x0000558948c30cfa in  ()
#36 0x00007f9fc9928b97 in __libc_start_main (main=0x558948c30320, argc=1, argv=0x7ffe5b86bcb8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe5b86bca8) at ../csu/libc-start.c:310
#37 0x0000558948c3109a in _start ()

Reported using DrKonqi