Application: plasmashell (5.10.2)

Qt Version: 5.9.0
Frameworks Version: 5.35.0
Operating System: Linux 4.11.3-1-ARCH x86_64
Distribution: "Arch Linux"

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

Plasma failure after using 2 tabs in dolphin and 2 panels in one of them, in a window to a copy from a backup server using sftp and in the other to a usb memory

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 0x7f988a45ad80 (LWP 621))]

Thread 23 (Thread 0x7f976ac0b700 (LWP 1878)):
#0  0x00007f988336439d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f98841970eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f9887f378d8 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f9887f37d3a in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 22 (Thread 0x7f976bfff700 (LWP 1671)):
#0  0x00007f988336439d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f98841970eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f97c88333cd in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f97c88382b8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f97c8832913 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f97c8835b6b in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 21 (Thread 0x7f9784b30700 (LWP 1670)):
#0  0x00007f988336439d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f98841970eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f97c88333cd in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f97c88382b8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f97c8832913 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f97c8835b6b in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 20 (Thread 0x7f9785331700 (LWP 1669)):
#0  0x00007f988336439d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f98841970eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f97c88333cd in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f97c88382b8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f97c8832913 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f97c8838312 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f97c8832913 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f97c8835b6b in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7f9785b32700 (LWP 1668)):
#0  0x00007f988336439d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f98841970eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f97c88333cd in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f97c88382b8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f97c8832913 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f97c8838312 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f97c8832913 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f97c8835b6b in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7f9786333700 (LWP 1667)):
#0  0x00007f988336439d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f98841970eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f97c88333cd in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f97c88382b8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f97c8832913 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f97c8838312 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f97c8832913 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f97c8838312 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f97c8832913 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f97c8835b6b in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#11 0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f9786b34700 (LWP 1666)):
#0  0x00007f988336439d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f98841970eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f97c88333cd in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f97c88382b8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f97c8832913 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f97c8838312 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f97c8832913 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f97c8835b6b in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f9787335700 (LWP 1665)):
#0  0x00007f988336439d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f98841970eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f97c88333cd in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f97c88382b8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f97c8832913 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f97c8838312 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f97c8832913 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f97c8835b6b in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f97ad83e700 (LWP 1664)):
#0  0x00007f988336439d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f98841970eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f97c88333cd in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f97c88382b8 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f97c8832913 in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f97c8835b6b in ThreadWeaver::Thread::run() () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f97937fe700 (LWP 843)):
#0  0x00007f988336439d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f98841970eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f9887f378d8 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f9887f37d3a in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f9793fff700 (LWP 842)):
#0  0x00007f988336439d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f98841970eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f9887f378d8 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f9887f37d3a in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f97ad038700 (LWP 841)):
#0  0x00007f988336439d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f98841970eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f9887f378d8 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f9887f37d3a in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f97ae3de700 (LWP 828)):
#0  0x00007f988336439d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f98841970eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f9887f378d8 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f9887f37d3a in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f97aebdf700 (LWP 827)):
#0  0x00007f9883aa02bd in poll () at /usr/lib/libc.so.6
#1  0x00007f9888ae18e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f9888ae1fad in  () at /usr/lib/libxcb.so.1
#3  0x00007f9888ae202d in xcb_writev () at /usr/lib/libxcb.so.1
#4  0x00007f9888d3ff3e in _XSend () at /usr/lib/libX11.so.6
#5  0x00007f9888d40280 in _XFlush () at /usr/lib/libX11.so.6
#6  0x00007f9888d2237a in XFlush () at /usr/lib/libX11.so.6
#7  0x00007f98733267d2 in  () at /usr/lib/qt/plugins/xcbglintegrations/libqxcb-glx-integration.so
#8  0x00007f9884b9e5fa in QOpenGLContext::swapBuffers(QSurface*) () at /usr/lib/libQt5Gui.so.5
#9  0x00007f9887f32e33 in  () at /usr/lib/libQt5Quick.so.5
#10 0x00007f9887f37cf8 in  () at /usr/lib/libQt5Quick.so.5
#11 0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#12 0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#13 0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f97b8055700 (LWP 816)):
#0  0x00007f98843c8603 in  () at /usr/lib/libQt5Core.so.5
#1  0x00007f987e65b138 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007f987e65bb2b in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f987e65bd0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f98843c8e9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f988436f21a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f988419140a in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f97ba9f9427 in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#8  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f97cbcfe700 (LWP 789)):
#0  0x00007f988336439d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f98841970eb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f9887f378d8 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f9887f37d3a in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f97d09b9700 (LWP 788)):
#0  0x00007f9883aa02bd in poll () at /usr/lib/libc.so.6
#1  0x00007f987e65bbf9 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f987e65bd0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f98843c8e9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f988436f21a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f988419140a in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f9887eb8836 in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f985bfff700 (LWP 742)):
#0  0x00007f988336439d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f9889bd3ac4 in  () at /usr/lib/libQt5Script.so.5
#2  0x00007f9889bd3b09 in  () at /usr/lib/libQt5Script.so.5
#3  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f9862372700 (LWP 741)):
#0  0x00007f987e6a0a44 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f987e65b578 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f987e65bba0 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f987e65bd0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f98843c8e9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f988436f21a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f988419140a in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f9887300645 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f987086c700 (LWP 697)):
#0  0x00007f9883aa02bd in poll () at /usr/lib/libc.so.6
#1  0x00007f987e65bbf9 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f987e65bd0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f98843c8e9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f988436f21a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f988419140a in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f9887300645 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f98722b6700 (LWP 649)):
#0  0x00007f987e65b0ca in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#1  0x00007f987e65bb2b in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f987e65bd0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f98843c8e9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f988436f21a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f988419140a in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f98847efd45 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f987434a700 (LWP 648)):
#0  0x00007f9883aa02bd in poll () at /usr/lib/libc.so.6
#1  0x00007f9888ae18e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f9888ae3679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f98768bbd49 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f9884195cbd in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f988335e297 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f9883aaa25f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f988a45ad80 (LWP 621)):
[KCrash Handler]
#5  0x00007f98871ef09f in  () at /usr/lib/libQt5Qml.so.5
#6  0x00007f98871becb3 in QV4::PersistentValueStorage::mark(QV4::ExecutionEngine*) () at /usr/lib/libQt5Qml.so.5
#7  0x00007f98870cee1d in QV4::MemoryManager::mark() () at /usr/lib/libQt5Qml.so.5
#8  0x00007f98870cf62c in  () at /usr/lib/libQt5Qml.so.5
#9  0x00007f98870d10d8 in QV4::MemoryManager::allocString(unsigned long) () at /usr/lib/libQt5Qml.so.5
#10 0x00007f98871af01a in QV4::ExecutionEngine::newString(QString const&) () at /usr/lib/libQt5Qml.so.5
#11 0x00007f98871b15b3 in QV4::ExecutionEngine::fromVariant(QVariant const&) () at /usr/lib/libQt5Qml.so.5
#12 0x00007f988723622b in  () at /usr/lib/libQt5Qml.so.5
#13 0x00007f9887236f57 in QV4::QObjectWrapper::getQmlProperty(QQmlContextData*, QV4::String*, QV4::QObjectWrapper::RevisionMode, bool*, bool) const () at /usr/lib/libQt5Qml.so.5
#14 0x00007f988724cffb in QV4::Runtime::method_getElement(QV4::ExecutionEngine*, QV4::Value const&, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#15 0x00007f97b71e50f8 in  ()
#16 0x0000000001114fc0 in  ()
#17 0x8e4a8223b93ec100 in  ()
#18 0x0000000002f77930 in  ()
#19 0x00007f9860f73418 in  ()
#20 0x00007f9860f733e8 in  ()
#21 0x00007f9860f733f8 in  ()
#22 0x00007f988737d9b0 in  () at /usr/lib/libQt5Qml.so.5
#23 0x00007ffe5a15c1b0 in  ()
#24 0x0000000002df1290 in  ()
#25 0x00000000008110a0 in  ()
#26 0x00000000008110a0 in  ()
#27 0x00007f98871be077 in QV4::ExecutionContext::simpleCall(QV4::Scope&, QV4::CallData*, QV4::Function*) () at /usr/lib/libQt5Qml.so.5
#28 0x00007f98871e3655 in  () at /usr/lib/libQt5Qml.so.5
#29 0x00007f988724a10f in QV4::Runtime::method_callActivationProperty(QV4::ExecutionEngine*, int, QV4::CallData*) () at /usr/lib/libQt5Qml.so.5
#30 0x00007f97b71e7c42 in  ()
#31 0x000000000129d6a0 in  ()
#32 0x8e4a8223b93ec100 in  ()
#33 0x00000000008110a0 in  ()
#34 0x00007f9860f73320 in  ()
#35 0x00007f9860f73320 in  ()
#36 0x00007f9860f733f0 in  ()
#37 0x00007f9860f73398 in  ()
#38 0x00007ffe5a15c490 in  ()
#39 0x0000000001d16e40 in  ()
#40 0x00000000008110a0 in  ()
#41 0x00000000008110a0 in  ()
#42 0x00007f98871be077 in QV4::ExecutionContext::simpleCall(QV4::Scope&, QV4::CallData*, QV4::Function*) () at /usr/lib/libQt5Qml.so.5
#43 0x00007f98872e0b99 in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*, QV4::Scope&) () at /usr/lib/libQt5Qml.so.5
#44 0x00007f98872ead16 in  () at /usr/lib/libQt5Qml.so.5
#45 0x00007f98872e7b93 in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#46 0x00007f98872bea83 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib/libQt5Qml.so.5
#47 0x00007f988725d499 in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /usr/lib/libQt5Qml.so.5
#48 0x00007f988439ec9f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#49 0x00007f9887253d3a in QQmlOpenMetaObject::setValue(QByteArray const&, QVariant const&) () at /usr/lib/libQt5Qml.so.5
#50 0x00007f98870cd532 in QQmlPropertyMap::insert(QString const&, QVariant const&) () at /usr/lib/libQt5Qml.so.5
#51 0x00007f97d4156ac9 in  () at /usr/lib/qt/qml/org/kde/plasma/core/libcorebindingsplugin.so
#52 0x00007f97d416fb1d in  () at /usr/lib/qt/qml/org/kde/plasma/core/libcorebindingsplugin.so
#53 0x00007f988439f465 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#54 0x00007f98886459e7 in Plasma::DataContainer::dataUpdated(QString const&, QMap<QString, QVariant> const&) () at /usr/lib/libKF5Plasma.so.5
#55 0x00007f9888648f10 in Plasma::DataContainer::checkForUpdate() () at /usr/lib/libKF5Plasma.so.5
#56 0x00007f97b6977de1 in  () at /usr/lib/qt/plugins/plasma/dataengine/plasma_engine_applicationjobs.so
#57 0x00007f988439fe2b in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#58 0x00007f988532646c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#59 0x00007f988532dcf4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#60 0x00007f9884370b98 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#61 0x00007f98843c7bae in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#62 0x00007f98843c8389 in  () at /usr/lib/libQt5Core.so.5
#63 0x00007f987e65ba47 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#64 0x00007f987e65bc78 in  () at /usr/lib/libglib-2.0.so.0
#65 0x00007f987e65bd0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#66 0x00007f98843c8e7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#67 0x00007f988436f21a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#68 0x00007f9884377a74 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#69 0x000000000041cc32 in  ()
#70 0x00007f98839dd43a in __libc_start_main () at /usr/lib/libc.so.6
#71 0x000000000041cfaa in _start ()

Reported using DrKonqi