Application: plasmashell (5.4.3)

Qt Version: 5.5.1
Operating System: Linux 4.1.15-8-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:

1. unlock the screen;
2. open a new tab in browser and go to some URL;
3. turn on a Wi-Fi connection, it has been established successfully; there aren't other active connections neither before nor after;
4. immediatrely after that, a message appeared that Plasma was crashed, and task bar at the bottom of the screen has disappeared;
5. while I was writing a bug report, the task bar appeared back.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fccbcef97c0 (LWP 8843))]

Thread 16 (Thread 0x7fcca697f700 (LWP 8845)):
#0  0x00007fccb6443c1d in poll () at /lib64/libc.so.6
#1  0x00007fccbb36f422 in  () at /usr/lib64/libxcb.so.1
#2  0x00007fccbb37100f in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007fcca8ad03c9 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007fccb6b3b32f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007fccb5c4d0a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fccb644c04d in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7fcc9fbe2700 (LWP 8849)):
#0  0x00007fccb6443c1d in poll () at /lib64/libc.so.6
#1  0x00007fccb2b25e64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fccb2b25f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fccb6d6dd8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fccb6d14d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fccb6b3661a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fccb9e21df8 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007fccb6b3b32f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fccb5c4d0a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fccb644c04d in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7fcc92d0d700 (LWP 8874)):
#0  0x00007fccb6443c1d in poll () at /lib64/libc.so.6
#1  0x00007fccb2b25e64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fccb2b25f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fccb6d6dd8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fccb6d14d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fccb6b3661a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fccb9e21df8 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007fccb6b3b32f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fccb5c4d0a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fccb644c04d in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7fcc91242700 (LWP 8910)):
#0  0x00007fccb6443c1d in poll () at /lib64/libc.so.6
#1  0x00007fccb2b25e64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fccb2b25f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fccb6d6dd8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fccb6d14d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fccb6b3661a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fccb9e21df8 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007fccb6b3b32f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fccb5c4d0a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fccb644c04d in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7fcc8b7bb700 (LWP 8913)):
#0  0x00007fccb5c5105f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fccbc5d686b in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007fccbc5d6899 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007fccb5c4d0a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007fccb644c04d in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7fcc03fff700 (LWP 8916)):
#0  0x00007fccb643fced in read () at /lib64/libc.so.6
#1  0x00007fccb2b66b60 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fccb2b25999 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fccb2b25df8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fccb2b25f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007fccb6d6dd8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fccb6d14d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007fccb6b3661a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007fccba9b6282 in  () at /usr/lib64/libQt5Quick.so.5
#9  0x00007fccb6b3b32f in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007fccb5c4d0a4 in start_thread () at /lib64/libpthread.so.0
#11 0x00007fccb644c04d in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7fcbf5403700 (LWP 9100)):
#0  0x00007fccbcd4da35 in __tls_get_addr () at /lib64/ld-linux-x86-64.so.2
#1  0x00007fccb6b3a352 in  () at /usr/lib64/libQt5Core.so.5
#2  0x00007fccb6d6dc9a in  () at /usr/lib64/libQt5Core.so.5
#3  0x00007fccb2b254ad in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fccb2b25d80 in  () at /usr/lib64/libglib-2.0.so.0
#5  0x00007fccb2b25f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#6  0x00007fccb6d6dd8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007fccb6d14d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#8  0x00007fccb6b3661a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#9  0x00007fcbf6a50cf7 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#10 0x00007fccb6b3b32f in  () at /usr/lib64/libQt5Core.so.5
#11 0x00007fccb5c4d0a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007fccb644c04d in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7fcbd1bfa700 (LWP 16013)):
#0  0x00007fccb5c5105f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fccb6b3c34b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007fcc01bf165f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#3  0x00007fcc01bf543a in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#10 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#11 0x00007fcc01bf3005 in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#12 0x00007fccb6b3b32f in  () at /usr/lib64/libQt5Core.so.5
#13 0x00007fccb5c4d0a4 in start_thread () at /lib64/libpthread.so.0
#14 0x00007fccb644c04d in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7fcbcfffd700 (LWP 16014)):
#0  0x00007fccb5c5105f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fccb6b3c34b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007fcc01bf165f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#3  0x00007fcc01bf543a in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#10 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#11 0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#12 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#13 0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#14 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#15 0x00007fcc01bf3005 in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#16 0x00007fccb6b3b32f in  () at /usr/lib64/libQt5Core.so.5
#17 0x00007fccb5c4d0a4 in start_thread () at /lib64/libpthread.so.0
#18 0x00007fccb644c04d in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7fcbdd2ad700 (LWP 16015)):
#0  0x00007fccb5c5105f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fccb6b3c34b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007fcc01bf165f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#3  0x00007fcc01bf543a in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007fcc01bf3005 in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007fccb6b3b32f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fccb5c4d0a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fccb644c04d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7fcbcd7f8700 (LWP 16016)):
#0  0x00007fccb5c5105f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fccb6b3c34b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007fcc01bf165f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#3  0x00007fcc01bf543a in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007fcc01bf3005 in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007fccb6b3b32f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fccb5c4d0a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fccb644c04d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7fcbd6acc700 (LWP 16017)):
#0  0x00007fccb5c5105f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fccb6b3c34b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007fcc01bf165f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#3  0x00007fcc01bf543a in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007fcc01bf3005 in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007fccb6b3b32f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fccb5c4d0a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fccb644c04d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7fcbd62cb700 (LWP 16018)):
#0  0x00007fccb5c5105f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fccb6b3c34b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007fcc01bf165f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#3  0x00007fcc01bf543a in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#10 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#11 0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#12 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#13 0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#14 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#15 0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#16 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#17 0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#18 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#19 0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#20 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#21 0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#22 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#23 0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#24 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#25 0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#26 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#27 0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#28 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#29 0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#30 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#31 0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#32 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#33 0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#34 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#35 0x00007fcc01bf3005 in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#36 0x00007fccb6b3b32f in  () at /usr/lib64/libQt5Core.so.5
#37 0x00007fccb5c4d0a4 in start_thread () at /lib64/libpthread.so.0
#38 0x00007fccb644c04d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fcbd5aca700 (LWP 16019)):
#0  0x00007fccb5c5105f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fccb6b3c34b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007fcc01bf165f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#3  0x00007fcc01bf543a in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#10 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#11 0x00007fcc01bf3005 in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#12 0x00007fccb6b3b32f in  () at /usr/lib64/libQt5Core.so.5
#13 0x00007fccb5c4d0a4 in start_thread () at /lib64/libpthread.so.0
#14 0x00007fccb644c04d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fcbd52c9700 (LWP 16020)):
#0  0x00007fccb5c5105f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fccb6b3c34b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007fcc01bf165f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#3  0x00007fcc01bf543a in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007fcc01bf5481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#10 0x00007fcc01bef6cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#11 0x00007fcc01bf3005 in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#12 0x00007fccb6b3b32f in  () at /usr/lib64/libQt5Core.so.5
#13 0x00007fccb5c4d0a4 in start_thread () at /lib64/libpthread.so.0
#14 0x00007fccb644c04d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fccbcef97c0 (LWP 8843)):
[KCrash Handler]
#6  0x00007fccb6d47305 in QMetaObject::activate(QObject*, int, void**) () at /usr/lib64/libQt5Core.so.5
#7  0x00007fccb9bf3372 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007fccb9e61009 in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () at /usr/lib64/libQt5Qml.so.5
#9  0x00007fccb9e66a41 in QQmlDelegateModel::_q_layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () at /usr/lib64/libQt5Qml.so.5
#10 0x00007fccb9e88abf in  () at /usr/lib64/libQt5Qml.so.5
#11 0x00007fccb9e8930b in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib64/libQt5Qml.so.5
#12 0x00007fccb6d46dc1 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#13 0x00007fccb6dc58d6 in QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () at /usr/lib64/libQt5Core.so.5
#14 0x00007fccb6ce63c5 in  () at /usr/lib64/libQt5Core.so.5
#15 0x00007fccb6ce8248 in  () at /usr/lib64/libQt5Core.so.5
#16 0x00007fccb6d46cc6 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#17 0x00007fccb6dc582c in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () at /usr/lib64/libQt5Core.so.5
#18 0x00007fcbeeb0ee6f in NetworkModel::updateItem(NetworkModelItem*) () at /usr/lib64/libplasmanm_internal.so
#19 0x00007fcbeeb10079 in NetworkModel::activeConnectionStateChanged(NetworkManager::ActiveConnection::State) () at /usr/lib64/libplasmanm_internal.so
#20 0x00007fccb6d4673f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#21 0x00007fcbee8a54a1 in NetworkManager::ActiveConnection::stateChanged(NetworkManager::ActiveConnection::State) () at /usr/lib64/libKF5NetworkManagerQt.so.6
#22 0x00007fcbee818cbc in  () at /usr/lib64/libKF5NetworkManagerQt.so.6
#23 0x00007fccb6d4673f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#24 0x00007fcbee8aeefb in  () at /usr/lib64/libKF5NetworkManagerQt.so.6
#25 0x00007fcbee8b53f3 in  () at /usr/lib64/libKF5NetworkManagerQt.so.6
#26 0x00007fccb7abeda4 in  () at /usr/lib64/libQt5DBus.so.5
#27 0x00007fccb6d47ac6 in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#28 0x00007fccb808fe7c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#29 0x00007fccb8094cc8 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#30 0x00007fccb6d16e95 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#31 0x00007fccb6d19057 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#32 0x00007fccb6d6e8f3 in  () at /usr/lib64/libQt5Core.so.5
#33 0x00007fccb2b25c84 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#34 0x00007fccb2b25ed8 in  () at /usr/lib64/libglib-2.0.so.0
#35 0x00007fccb2b25f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#36 0x00007fccb6d6dd6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#37 0x00007fccb6d14d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#38 0x00007fccb6d1c8f6 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#39 0x000000000043467b in main ()

Reported using DrKonqi