Application: plasmashell (5.14.5)

Qt Version: 5.11.3
Frameworks Version: 5.54.0
Operating System: Linux 4.19.0-5-amd64 x86_64
Distribution: PureOS

-- Information about the crash:
- What I was doing when the application crashed:
I clicked the Plasma LOGO on the bottom panel, to open the "application laucher". I typed some words like"kw"(to find Kwallet), "sh"(to find shadowsocks"). Then Plasma crashed,stucked on the screen and restarted it self(back to the state when the crash happened,but all windows minimized. Such occation happened about 8 times in a month. Sometimes, Plasma won`t restart and the bottom panel doesn`t show up, but all the windows remained on the screen were still operatable, but right-clicking on the window nolonger does anything(such situation will stay until I forcibly shuts down my computer.
-Additional comment by Parabola(Xeon):I have to go to a boarding school for months,you can email me but don`t expect reply before the end of the month.Sorry for my broken English

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 0x7f8359627a00 (LWP 3120))]

Thread 13 (Thread 0x7f83077fe700 (LWP 15555)):
#0  0x00007f835db8a00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x55d614ae4bc4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f835db8a00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d614ae4b70, cond=0x55d614ae4b98) at pthread_cond_wait.c:502
#2  0x00007f835db8a00c in __pthread_cond_wait (cond=0x55d614ae4b98, mutex=0x55d614ae4b70) at pthread_cond_wait.c:655
#3  0x00007f835ed0625b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8335f6dd30 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f8335f71ae8 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f8335f71b42 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f8335f71b42 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f8335f71b42 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f8335f6fbb9 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f835ed05aa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f835db83fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#16 0x00007f835e9f74cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f8307fff700 (LWP 15554)):
#0  0x00007f835db8a00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x55d614ae4bc4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f835db8a00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d614ae4b70, cond=0x55d614ae4b98) at pthread_cond_wait.c:502
#2  0x00007f835db8a00c in __pthread_cond_wait (cond=0x55d614ae4b98, mutex=0x55d614ae4b70) at pthread_cond_wait.c:655
#3  0x00007f835ed0625b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8335f6dd30 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f8335f71ae8 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f8335f6fbb9 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f835ed05aa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f835db83fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007f835e9f74cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f831c9ea700 (LWP 15553)):
#0  0x00007f835db8a00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x55d614ae4bc4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f835db8a00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d614ae4b70, cond=0x55d614ae4b98) at pthread_cond_wait.c:502
#2  0x00007f835db8a00c in __pthread_cond_wait (cond=0x55d614ae4b98, mutex=0x55d614ae4b70) at pthread_cond_wait.c:655
#3  0x00007f835ed0625b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8335f6dd30 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f8335f71ae8 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f8335f71b42 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f8335f71b42 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f8335f71b42 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f8335f71b42 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007f8335f71b42 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#17 0x00007f8335f6fbb9 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#18 0x00007f835ed05aa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f835db83fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#20 0x00007f835e9f74cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f831d1eb700 (LWP 15552)):
#0  0x00007f835db8a00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x55d614ae4bc4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f835db8a00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d614ae4b70, cond=0x55d614ae4b98) at pthread_cond_wait.c:502
#2  0x00007f835db8a00c in __pthread_cond_wait (cond=0x55d614ae4b98, mutex=0x55d614ae4b70) at pthread_cond_wait.c:655
#3  0x00007f835ed0625b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8335f6dd30 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f8335f71ae8 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f8335f71b42 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f8335f6fbb9 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f835ed05aa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f835db83fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#12 0x00007f835e9f74cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f831d9ec700 (LWP 15551)):
#0  0x00007f835db8a00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x55d614ae4bc4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f835db8a00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d614ae4b70, cond=0x55d614ae4b98) at pthread_cond_wait.c:502
#2  0x00007f835db8a00c in __pthread_cond_wait (cond=0x55d614ae4b98, mutex=0x55d614ae4b70) at pthread_cond_wait.c:655
#3  0x00007f835ed0625b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8335f6dd30 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f8335f71ae8 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f8335f6fbb9 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f835ed05aa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f835db83fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007f835e9f74cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f831e1ed700 (LWP 15550)):
#0  0x00007f835db8a00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x55d614ae4bc4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f835db8a00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d614ae4b70, cond=0x55d614ae4b98) at pthread_cond_wait.c:502
#2  0x00007f835db8a00c in __pthread_cond_wait (cond=0x55d614ae4b98, mutex=0x55d614ae4b70) at pthread_cond_wait.c:655
#3  0x00007f835ed0625b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8335f6dd30 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f8335f71ae8 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f8335f6fbb9 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f835ed05aa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f835db83fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007f835e9f74cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f831e9ee700 (LWP 15549)):
#0  0x00007f835db8a00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x55d614ae4bc4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f835db8a00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d614ae4b70, cond=0x55d614ae4b98) at pthread_cond_wait.c:502
#2  0x00007f835db8a00c in __pthread_cond_wait (cond=0x55d614ae4b98, mutex=0x55d614ae4b70) at pthread_cond_wait.c:655
#3  0x00007f835ed0625b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8335f6dd30 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f8335f71ae8 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f8335f71b42 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f8335f6fbb9 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f835ed05aa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f835db83fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#12 0x00007f835e9f74cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f831f5ef700 (LWP 15548)):
#0  0x00007f835db8a00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x55d614ae4bc4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f835db8a00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d614ae4b70, cond=0x55d614ae4b98) at pthread_cond_wait.c:502
#2  0x00007f835db8a00c in __pthread_cond_wait (cond=0x55d614ae4b98, mutex=0x55d614ae4b70) at pthread_cond_wait.c:655
#3  0x00007f835ed0625b in QWaitCondition::wait(QMutex*, unsigned long) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8335f6dd30 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f8335f71ae8 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f8335f71b42 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f8335f71b42 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f8335f71b42 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f8335f71b42 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007f8335f71b42 in  () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00007f8335f6ce3d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#17 0x00007f8335f6fbb9 in ThreadWeaver::Thread::run() () at /lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#18 0x00007f835ed05aa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f835db83fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#20 0x00007f835e9f74cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f83385b8700 (LWP 3350)):
#0  0x00007f835ca8ce84 in g_mutex_unlock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f835ca42fed in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f835ca4325c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f835eefe87b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f835eeac27b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f835ecfbec6 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f83608b3476 in  () at /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f835ed05aa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f835db83fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f835e9f74cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f8343822700 (LWP 3216)):
#0  0x00007f835db8a00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x55d61155d178) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f835db8a00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d61155d128, cond=0x55d61155d150) at pthread_cond_wait.c:502
#2  0x00007f835db8a00c in __pthread_cond_wait (cond=0x55d61155d150, mutex=0x55d61155d128) at pthread_cond_wait.c:655
#3  0x00007f834799b353 in  () at /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#4  0x00007f834799b0a7 in  () at /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
#5  0x00007f835db83fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f835e9f74cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f83562f2700 (LWP 3187)):
#0  0x00007f835e9ec819 in __GI___poll (fds=0x7f834c004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f835ca43136 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f835ca4325c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f835eefe87b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f835eeac27b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f835ecfbec6 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f836062ec65 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f835ed05aa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f835db83fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f835e9f74cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f835781c700 (LWP 3145)):
#0  0x00007f835e9e8494 in __GI___libc_read (nbytes=16, buf=0x7f835781b950, fd=7) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f835e9e8494 in __GI___libc_read (fd=7, buf=0x7f835781b950, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f835ca88aa0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f835ca42c0f in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f835ca430e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f835ca4325c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f835eefe87b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f835eeac27b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f835ecfbec6 in QThread::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f835f738545 in  () at /lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007f835ed05aa7 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f835db83fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#12 0x00007f835e9f74cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f8359627a00 (LWP 3120)):
[KCrash Handler]
#6  0x00007f835eeb68c0 in QMetaObject::methodOffset() const () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f835eed6f1b in QMetaObject::activate(QObject*, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f83604287d0 in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f83606718de in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f83606785fc in  () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007f83606789cb in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () at /lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007f835eed69c7 in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f835ee60f6d in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f8336081991 in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#15 0x00007f833607ff0e in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#16 0x00007f8336090829 in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#17 0x00007f835eed6906 in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f8336015e42 in Plasma::RunnerManager::matchesChanged(QList<Plasma::QueryMatch> const&) () at /lib/x86_64-linux-gnu/libKF5Runner.so.5
#19 0x00007f8336019e63 in  () at /lib/x86_64-linux-gnu/libKF5Runner.so.5
#20 0x00007f835eed6906 in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f835eee24b7 in QTimer::timeout(QTimer::QPrivateSignal) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f835eed713b in QObject::event(QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f835f9a74b1 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f835f9ae950 in QApplication::notify(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f835eead5a9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f835eefdc78 in QTimerInfoList::activateTimers() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f835eefe4d4 in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f835ca42f2e in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f835ca431c8 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f835ca4325c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f835eefe863 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007f8358f543e1 in  () at /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#33 0x00007f835eeac27b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f835eeb4262 in QCoreApplication::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x000055d61104f1ab in  ()
#36 0x00007f835e92209b in __libc_start_main (main=0x55d61104e6a0, argc=1, argv=0x7fff18d0e3b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff18d0e3a8) at ../csu/libc-start.c:308
#37 0x000055d61104f62a in _start ()
[Inferior 1 (process 3120) detached]

Reported using DrKonqi