Application: krunner (5.9.5)

Qt Version: 5.7.1
Frameworks Version: 5.31.0
Operating System: Linux 4.12.10 x86_64
Distribution: Ubuntu 17.04

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

I just activate krunner by keyboard shortcut (ctrl+F12), wrote "virtualbox" and press Enter. KRunner crashed then...

The crash can be reproduced sometimes.

-- Backtrace:
Application: krunner (krunner), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7ff8b99298c0 (LWP 3667))]

Thread 12 (Thread 0x7ff86effd700 (LWP 9917)):
[KCrash Handler]
#6  0x00007ff8b595fc67 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff8b59663a5 in operator<(QString const&, QString const&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff8a2139184 in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#9  0x00007ff8a2128c38 in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#10 0x00007ff8a2129ad3 in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#11 0x00007ff8b5ad8789 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007ff8a21643ac in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#13 0x00007ff8a2167785 in  () at /usr/lib/x86_64-linux-gnu/libKF5Solid.so.5
#14 0x00007ff8b738c570 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#15 0x00007ff8b5ad9639 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007ff8b6a1735c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007ff8b6a1eb21 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007ff8b5aacc00 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007ff8b5aaf39d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007ff8b5b00c93 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007ff8b0c87377 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007ff8b0c875e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007ff8b0c8768c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007ff8b5b0109f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007ff8b5aaabea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007ff887548796 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so
#27 0x00007ff88ed15538 in Plasma::AbstractRunner::performMatch(Plasma::RunnerContext&) () at /usr/lib/x86_64-linux-gnu/libKF5Runner.so.5
#28 0x00007ff88eaf4bf8 in ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#29 0x00007ff88eaf3630 in ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#30 0x00007ff88eaf31d0 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#31 0x00007ff8b58ddc38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007ff8b2fbb6da in start_thread (arg=0x7ff86effd700) at pthread_create.c:456
#33 0x00007ff8b51ead7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 11 (Thread 0x7ff86f7fe700 (LWP 9916)):
#0  0x00007ff8b2fc1510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff8b58deaeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007ff88eaf1240 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007ff88eaf5478 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007ff88eaf03bd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007ff88eaf54d2 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007ff88eaf03bd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007ff88eaf3289 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007ff8b58ddc38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff8b2fbb6da in start_thread (arg=0x7ff86f7fe700) at pthread_create.c:456
#10 0x00007ff8b51ead7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 10 (Thread 0x7ff86ffff700 (LWP 9915)):
#0  0x00007ff8b2fc1510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff8b58deaeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007ff88eaf1240 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007ff88eaf5478 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007ff88eaf03bd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007ff88eaf54d2 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007ff88eaf03bd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007ff88eaf3289 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007ff8b58ddc38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff8b2fbb6da in start_thread (arg=0x7ff86ffff700) at pthread_create.c:456
#10 0x00007ff8b51ead7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 9 (Thread 0x7ff87ce53700 (LWP 9914)):
#0  0x00007ff8b2fc1510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff8b58deaeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007ff88eaf1240 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007ff88eaf5478 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007ff88eaf03bd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007ff88eaf54d2 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007ff88eaf03bd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007ff88eaf3289 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007ff8b58ddc38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff8b2fbb6da in start_thread (arg=0x7ff87ce53700) at pthread_create.c:456
#10 0x00007ff8b51ead7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 8 (Thread 0x7ff87d654700 (LWP 9913)):
#0  0x00007ff8b2fc1510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff8b58deaeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007ff88eaf1240 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007ff88eaf5478 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007ff88eaf03bd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007ff88eaf3289 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007ff8b58ddc38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff8b2fbb6da in start_thread (arg=0x7ff87d654700) at pthread_create.c:456
#8  0x00007ff8b51ead7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 7 (Thread 0x7ff87de55700 (LWP 9912)):
#0  0x00007ff8b2fc1510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff8b58deaeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007ff88eaf1240 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007ff88eaf5478 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007ff88eaf03bd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007ff88eaf54d2 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007ff88eaf03bd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007ff88eaf3289 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007ff8b58ddc38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff8b2fbb6da in start_thread (arg=0x7ff87de55700) at pthread_create.c:456
#10 0x00007ff8b51ead7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 6 (Thread 0x7ff87e656700 (LWP 9911)):
#0  0x00007ff8b2fc1510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff8b58deaeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007ff88eaf1240 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007ff88eaf5478 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007ff88eaf03bd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007ff88eaf54d2 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007ff88eaf03bd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007ff88eaf3289 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007ff8b58ddc38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff8b2fbb6da in start_thread (arg=0x7ff87e656700) at pthread_create.c:456
#10 0x00007ff8b51ead7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 5 (Thread 0x7ff87ee57700 (LWP 9910)):
#0  0x00007ff8b2fc1510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff8b58deaeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007ff88eaf1240 in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007ff88eaf5478 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007ff88eaf03bd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007ff88eaf54d2 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007ff88eaf03bd in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007ff88eaf3289 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007ff8b58ddc38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff8b2fbb6da in start_thread (arg=0x7ff87ee57700) at pthread_create.c:456
#10 0x00007ff8b51ead7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 4 (Thread 0x7ff89b323700 (LWP 3754)):
#0  0x00007ff8b0ccced9 in g_mutex_lock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff8b0c87532 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff8b0c8768c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff8b5b010bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff8b5aaabea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff8b58d8f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff8b83d2df5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007ff8b58ddc38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff8b2fbb6da in start_thread (arg=0x7ff89b323700) at pthread_create.c:456
#9  0x00007ff8b51ead7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7ff8a1a1b700 (LWP 3683)):
#0  0x00007ff8b51ded8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ff8b0c87576 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff8b0c8768c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff8b5b010bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff8b5aaabea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff8b58d8f83 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff8b73825d5 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007ff8b58ddc38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff8b2fbb6da in start_thread (arg=0x7ff8a1a1b700) at pthread_create.c:456
#9  0x00007ff8b51ead7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7ff8a3931700 (LWP 3676)):
#0  0x00007ff8b51ded8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ff8b48d8c62 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ff8b48da8d7 in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ff8a5c84ef9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007ff8b58ddc38 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff8b2fbb6da in start_thread (arg=0x7ff8a3931700) at pthread_create.c:456
#6  0x00007ff8b51ead7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7ff8b99298c0 (LWP 3667)):
#0  0x00007ff8b2fc1510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff8b48d8eb9 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ff8b48da617 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ff8b48da781 in xcb_wait_for_reply64 () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#4  0x00007ff8b4b2ea78 in _XReply () at /usr/lib/x86_64-linux-gnu/libX11.so.6
#5  0x00007ff8b20688aa in  () at /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#6  0x00007ff8b2068c07 in  () at /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#7  0x00007ff8a0cbf94a in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#8  0x00007ff8a0cbfe81 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#9  0x00007ff8a0caaf24 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#10 0x00007ff8b88329ea in QSGBatchRenderer::Renderer::renderBatches() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007ff8b88382b5 in QSGBatchRenderer::Renderer::render() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007ff8b8843bdf in QSGRenderer::renderScene(QSGBindable const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007ff8b88442ab in QSGRenderer::renderScene(unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007ff8b8853f3e in QSGRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007ff8b889d7fe in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007ff8b886aa35 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007ff8b88a82a6 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007ff8b95e240b in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#19 0x000055a17b0e96c3 in  ()
#20 0x00007ff8b6a1735c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007ff8b6a1eb21 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007ff8b5aacc00 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007ff8b5ffc1be in QWindowPrivate::deliverUpdateRequest() () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#24 0x00007ff8b5ffc709 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#25 0x00007ff8b88a8245 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#26 0x00007ff8b95e240b in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#27 0x000055a17b0e96c3 in  ()
#28 0x00007ff8b6a1735c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007ff8b6a1eb21 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007ff8b5aacc00 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007ff8b5b0003e in QTimerInfoList::activateTimers() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007ff8b5b00561 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007ff8b0c87377 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007ff8b0c875e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007ff8b0c8768c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007ff8b5b0109f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007ff8b5aaabea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007ff8b5ab333c in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x000055a17b0e6bd8 in  ()
#40 0x00007ff8b51023f1 in __libc_start_main (main=0x55a17b0e67b0, argc=1, argv=0x7fff10493f18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff10493f08) at ../csu/libc-start.c:291
#41 0x000055a17b0e6c5a in _start ()

Reported using DrKonqi