Application: plasmashell (5.9.4)

Qt Version: 5.8.0
Frameworks Version: 5.33.0
Operating System: Linux 4.11.0-1-MANJARO x86_64
Distribution: "Manjaro Linux"

-- Information about the crash:
- What I was doing when the application crashed:
Tried to open some application by its icon located on the KDE taskbar (botton left). Here is one image pointing out where is the location I'm talking about: http://imgur.com/uPAeBsE
- Unusual behavior I noticed:
The system freezes and the taskbar dissapears. After about 5 seconds the bar reappeares and the system goes back to normal state.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7ea45f6800 (LWP 908))]

Thread 18 (Thread 0x7f3d7f70b700 (LWP 13723)):
#0  0x00007f7e9d260b63 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7e9e3a64c6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7e9e3a1bc4 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f7d9cff9700 (LWP 2201)):
#0  0x00007f7e9d260756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7e9e3a658b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7de89981d0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f7de899c9d8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7de899a249 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f7d9d7fa700 (LWP 2200)):
#0  0x00007f7e9d260756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7e9e3a658b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7de89981d0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f7de899c9d8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007f7de899a249 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#12 0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#13 0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#14 0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f7d9dffb700 (LWP 2199)):
#0  0x00007f7e9d260756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7e9e3a658b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7de89981d0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f7de899c9d8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#12 0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#13 0x00007f7de899a249 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#14 0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#15 0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#16 0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f7d9e7fc700 (LWP 2198)):
#0  0x00007f7e9d260756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7e9e3a658b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7de89981d0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f7de899c9d8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#12 0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#13 0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#14 0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#15 0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#16 0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#17 0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#18 0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#19 0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#20 0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#21 0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#22 0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#23 0x00007f7de899a249 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#24 0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#25 0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#26 0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f7d9effd700 (LWP 2197)):
#0  0x00007f7e9d260756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7e9e3a658b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7de89981d0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f7de899c9d8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7de899a249 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f7d9f7fe700 (LWP 2196)):
#0  0x00007f7e9d260756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7e9e3a658b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7de89981d0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f7de899c9d8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7de899a249 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f7d9ffff700 (LWP 2195)):
#0  0x00007f7e9d260756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7e9e3a658b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7de89981d0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f7de899c9d8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7de899a249 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f7da76c0700 (LWP 2194)):
#0  0x00007f7e9d260756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7e9e3a658b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f7de89981d0 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f7de899c9d8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f7de899ca32 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f7de8997263 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007f7de899a249 in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#12 0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#13 0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#14 0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f7dbcf7f700 (LWP 1424)):
#0  0x00007f7e9dcae67d in poll () at /usr/lib/libc.so.6
#1  0x00007f7e98a937a6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f7e98a938bc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7e9e5d506b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f7e9e57e89a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7e9e3a0a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f7dbe5fe0a7 in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#7  0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f7dc4d4d700 (LWP 1410)):
#0  0x00007f7e9d261cd1 in pthread_getspecific () at /usr/lib/libpthread.so.0
#1  0x00007f7e98abb670 in g_thread_self () at /usr/lib/libglib-2.0.so.0
#2  0x00007f7e98a9265c in g_main_context_acquire () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7e98a93655 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f7e98a938bc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f7e9e5d506b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f7e9e57e89a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f7e9e3a0a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f7deb963700 (LWP 1283)):
#0  0x00007f7e98ad8e49 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f7e98a92670 in g_main_context_acquire () at /usr/lib/libglib-2.0.so.0
#2  0x00007f7e98a93655 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7e98a938bc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f7e9e5d506b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7e9e57e89a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f7e9e3a0a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f7ea208cfd6 in  () at /usr/lib/libQt5Quick.so.5
#8  0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f7e7718d700 (LWP 1186)):
#0  0x00007f7e9d260756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f7ea3d80234 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f7ea3d80279 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f7e85187700 (LWP 1134)):
#0  0x00007f7e98ad8e49 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f7e98a927b4 in g_main_context_release () at /usr/lib/libglib-2.0.so.0
#2  0x00007f7e98a9375a in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7e98a938bc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f7e9e5d506b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f7e9e57e89a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f7e9e3a0a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f7ea14d9025 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f7e86be9700 (LWP 1070)):
#0  0x00007f7ea45015c2 in _dl_update_slotinfo () at /lib64/ld-linux-x86-64.so.2
#1  0x00007f7ea450162c in update_get_addr () at /lib64/ld-linux-x86-64.so.2
#2  0x00007f7e9e3a4566 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f7e9e5d47ba in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f7e98a92c8d in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#5  0x00007f7e98a936cb in  () at /usr/lib/libglib-2.0.so.0
#6  0x00007f7e98a938bc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#7  0x00007f7e9e5d506b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#8  0x00007f7e9e57e89a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#9  0x00007f7e9e3a0a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#10 0x00007f7ea14d9025 in  () at /usr/lib/libQt5Qml.so.5
#11 0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#12 0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#13 0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f7e87fff700 (LWP 986)):
#0  0x00007f7e9e39c8a9 in QMutex::lock() () at /usr/lib/libQt5Core.so.5
#1  0x00007f7e9e5d47df in  () at /usr/lib/libQt5Core.so.5
#2  0x00007f7e98a92c8d in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#3  0x00007f7e98a936cb in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f7e98a938bc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f7e9e5d506b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f7e9e57e89a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f7e9e3a0a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f7e9f125125 in  () at /usr/lib/libQt5DBus.so.5
#9  0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f7e8e829700 (LWP 951)):
#0  0x00007f7e9dcae67d in poll () at /usr/lib/libc.so.6
#1  0x00007f7ea2ca68e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f7ea2ca8679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f7e90d9b239 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f7e9e3a56d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f7e9d25a2e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f7e9dcb854f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f7ea45f6800 (LWP 908)):
[KCrash Handler]
#6  0x00007f7ea2137de1 in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /usr/lib/libQt5Quick.so.5
#7  0x00007f7ea2137dea in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /usr/lib/libQt5Quick.so.5
#8  0x00007f7ea2137dea in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /usr/lib/libQt5Quick.so.5
#9  0x00007f7ea2137dea in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /usr/lib/libQt5Quick.so.5
#10 0x00007f7ea2137dea in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /usr/lib/libQt5Quick.so.5
#11 0x00007f7ea2137dea in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /usr/lib/libQt5Quick.so.5
#12 0x00007f7ea2137dea in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /usr/lib/libQt5Quick.so.5
#13 0x00007f7ea2137dea in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /usr/lib/libQt5Quick.so.5
#14 0x00007f7ea2137dea in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /usr/lib/libQt5Quick.so.5
#15 0x00007f7ea2137dea in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () at /usr/lib/libQt5Quick.so.5
#16 0x00007f7ea2137f44 in QQuickItem::setVisible(bool) () at /usr/lib/libQt5Quick.so.5
#17 0x00007f7ea40b382c in  () at /usr/lib/libKF5PlasmaQuick.so.5
#18 0x00007f7ea40b4f6e in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/libKF5PlasmaQuick.so.5
#19 0x00007f7e9f4ee34c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#20 0x00007f7e9f4f5b61 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#21 0x00007f7e9e580440 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#22 0x00007f7e9ead778e in QWindow::setVisible(bool) () at /usr/lib/libQt5Gui.so.5
#23 0x00007f7ea40b1124 in PlasmaQuick::Dialog::setVisible(bool) () at /usr/lib/libKF5PlasmaQuick.so.5
#24 0x00007f7ea40b3fb8 in  () at /usr/lib/libKF5PlasmaQuick.so.5
#25 0x00007f7ea40b570b in PlasmaQuick::Dialog::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib/libKF5PlasmaQuick.so.5
#26 0x00007f7ea144cac9 in  () at /usr/lib/libQt5Qml.so.5
#27 0x00007f7ea144b498 in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#28 0x00007f7ea1415b7b in QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData*, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#29 0x00007f7ea1416390 in QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#30 0x00007f7ea14164a6 in QV4::QObjectWrapper::put(QV4::Managed*, QV4::String*, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#31 0x00007f7ea1426f56 in QV4::Runtime::method_setProperty(QV4::ExecutionEngine*, QV4::Value const&, int, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#32 0x00007f7dbe84b690 in  ()
#33 0x00007f7e84188460 in  ()
#34 0x00007f7e84188410 in  ()
#35 0x0000000000000080 in  ()
#36 0x0003400000000001 in  ()
#37 0x00007f7e84188428 in  ()
#38 0x00007f7ea139609d in QV4::ExecutionContext::newCallContext(QV4::FunctionObject const*, QV4::CallData*) () at /usr/lib/libQt5Qml.so.5
#39 0x00007f7ea13beb0e in  () at /usr/lib/libQt5Qml.so.5
#40 0x00007f7ea14b9aba in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*, QV4::Scope&) () at /usr/lib/libQt5Qml.so.5
#41 0x00007f7ea1457866 in QQmlBoundSignalExpression::evaluate(void**) () at /usr/lib/libQt5Qml.so.5
#42 0x00007f7ea14589ab in  () at /usr/lib/libQt5Qml.so.5
#43 0x00007f7ea1496444 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib/libQt5Qml.so.5
#44 0x00007f7ea143a5ec in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /usr/lib/libQt5Qml.so.5
#45 0x00007f7e9e5ac464 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#46 0x00007f7ea40a7f32 in PlasmaQuick::AppletQuickItem::expandedChanged(bool) () at /usr/lib/libKF5PlasmaQuick.so.5
#47 0x00007f7ea40abc9a in PlasmaQuick::AppletQuickItem::setExpanded(bool) () at /usr/lib/libKF5PlasmaQuick.so.5
#48 0x00007f7ea40ad0ff in  () at /usr/lib/libKF5PlasmaQuick.so.5
#49 0x00007f7ea40af03b in PlasmaQuick::AppletQuickItem::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib/libKF5PlasmaQuick.so.5
#50 0x00007f7e8519f0a5 in  () at /usr/lib/qt/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#51 0x00007f7ea144cac9 in  () at /usr/lib/libQt5Qml.so.5
#52 0x00007f7ea144b498 in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#53 0x00007f7ea1415b7b in QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData*, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#54 0x00007f7ea1416390 in QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#55 0x00007f7ea14164a6 in QV4::QObjectWrapper::put(QV4::Managed*, QV4::String*, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#56 0x00007f7ea1426f56 in QV4::Runtime::method_setProperty(QV4::ExecutionEngine*, QV4::Value const&, int, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#57 0x00007f7dbc552d8d in  ()
#58 0x000000000081ce60 in  ()
#59 0x0000000002e0c73d in  ()
#60 0x0000000000000000 in  ()

Possible duplicates by query: bug 379013, bug 378747, bug 378369, bug 378306, bug 378035.

Reported using DrKonqi