Application: krunner (5.5.4)

Qt Version: 5.5.1
Operating System: Linux 4.6.0+ x86_64
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
- What I was doing when the application crashed:
I started to type "iceweasel" when running krunner via alt-F2, krunner crashes but does restart.

-- 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 0x7f39908507c0 (LWP 4108))]

Thread 12 (Thread 0x7f399018d700 (LWP 4109)):
#0  0x00000030004dfdcd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x000000300380a382 in _xcb_conn_wait (__timeout=-1, __nfds=1, __fds=0x7f399018cd00) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  0x000000300380a382 in _xcb_conn_wait (c=c@entry=0x19f2470, cond=cond@entry=0x19f24b0, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:459
#3  0x000000300380bff7 in xcb_wait_for_event (c=0x19f2470) at ../../src/xcb_in.c:693
#4  0x00007f39905ec789 in QXcbEventReader::run() (this=0x1a054c0) at qxcbconnection.cpp:1230
#5  0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x1a054c0) at thread/qthread_unix.cpp:331
#6  0x0000003000c07454 in start_thread (arg=0x7f399018d700) at pthread_create.c:334
#7  0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f398d8d3700 (LWP 4112)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f398e5aa693 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007f398e5a9db7 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x0000003000c07454 in start_thread (arg=0x7f398d8d3700) at pthread_create.c:334
#4  0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f39853d4700 (LWP 4139)):
#0  0x00000030004dbdad in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x0000003002c8d740 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f39853d3be0, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  0x0000003002c8d740 in g_wakeup_acknowledge (wakeup=0x7f39880015b0) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gwakeup.c:210
#3  0x0000003002c49e84 in g_main_context_check (context=context@entry=0x7f3980000990, max_priority=2147483647, fds=fds@entry=0x7f3980003070, n_fds=n_fds@entry=1) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3632
#4  0x0000003002c4a340 in g_main_context_iterate (context=context@entry=0x7f3980000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3837
#5  0x0000003002c4a4ac in g_main_context_iteration (context=0x7f3980000990, may_block=may_block@entry=1) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3901
#6  0x00000030176dca5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f39800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x0000003017683daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f39853d3de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00000030174a0864 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00000030556d5105 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x1e16170) at thread/qthread_unix.cpp:331
#11 0x0000003000c07454 in start_thread (arg=0x7f39853d4700) at pthread_create.c:334
#12 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f397ae96700 (LWP 4284)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x1d60690) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x1c991e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f397f136dbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f397f13afe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f397f135f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f397f13b042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f397f135f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f397f138e53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x25de160) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7f397ae96700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f397a695700 (LWP 4285)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x1d60690) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x1c991e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f397f136dbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f397f13afe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f397f135f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f397f138e53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x25e3f90) at thread/qthread_unix.cpp:331
#8  0x0000003000c07454 in start_thread (arg=0x7f397a695700) at pthread_create.c:334
#9  0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f3979e94700 (LWP 4286)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x1d60690) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x1c991e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f397f136dbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f397f13afe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f397f135f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f397f13b042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f397f135f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f397f138e53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x1cf2980) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7f3979e94700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f3979693700 (LWP 4287)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x1d60690) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x1c991e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f397f136dbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f397f13afe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f397f135f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f397f13b042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f397f135f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f397f138e53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x26080a0) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7f3979693700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f3978e92700 (LWP 4288)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x1d60690) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x1c991e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f397f136dbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f397f13afe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f397f135f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f397f13b042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f397f135f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f397f138e53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x7f3974002d90) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7f3978e92700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f3963fff700 (LWP 4289)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x1d60690) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x1c991e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f397f136dbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f397f13afe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f397f135f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f397f13b042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f397f135f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f397f138e53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x25c5060) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7f3963fff700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f39637fe700 (LWP 4290)):
[KCrash Handler]
#6  0x00000030d9a0392a in  () at /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#7  0x00000030d9a04d34 in mdb_txn_begin () at /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#8  0x00000030ad620f9e in  () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#9  0x00000030ad60ff92 in Baloo::Query::exec() () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#10 0x00007f397b6c5f2f in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so
#11 0x00007f397b6c6879 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so
#12 0x00007f397f356f40 in Plasma::AbstractRunner::performMatch(Plasma::RunnerContext&) (this=0x26c5420, localContext=...) at ../../src/abstractrunner.cpp:131
#13 0x00007f397f13a790 in ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f397f1392e0 in ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007f397f138d8a in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x7f396c002f90) at thread/qthread_unix.cpp:331
#17 0x0000003000c07454 in start_thread (arg=0x7f39637fe700) at pthread_create.c:334
#18 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f3962ffd700 (LWP 4291)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x1d60690) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x1c991e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f397f136dbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f397f13afe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f397f135f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f397f13b042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f397f135f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f397f138e53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x7f3970002f90) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7f3962ffd700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f39908507c0 (LWP 4108)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000300380a5d9 in _xcb_conn_wait (c=c@entry=0x19f2470, cond=cond@entry=0x7ffc425b1240, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:427
#2  0x000000300380bd37 in wait_for_reply (c=c@entry=0x19f2470, request=1094, e=e@entry=0x7ffc425b1310) at ../../src/xcb_in.c:516
#3  0x000000300380be41 in xcb_wait_for_reply (c=c@entry=0x19f2470, request=1094, e=e@entry=0x7ffc425b1310) at ../../src/xcb_in.c:546
#4  0x0000003003c43317 in _XReply (dpy=0x19f10e0, rep=0x7ffc425b1390, extra=0, discard=0) at ../../src/xcb_io.c:602
#5  0x0000003012e442fa in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#6  0x0000003012e44637 in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#7  0x00007f398e2182fa in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#8  0x00007f398e214b4c in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#9  0x00007f398e13b09e in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#10 0x00007f398e13c609 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#11 0x00007f398e0e1b72 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#12 0x00007f398e0e9c61 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#13 0x000000303fb2925a in QSGBatchRenderer::Renderer::renderBatches() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x000000303fb2ec42 in QSGBatchRenderer::Renderer::render() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x000000303fb3a93f in QSGRenderer::renderScene(QSGBindable const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x000000303fb3b18b in QSGRenderer::renderScene(unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x000000303fb4b68e in QSGRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x000000303fb9566b in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x000000303fb6603b in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x000000303fb67141 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x000000301db5affc in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x19e3d10, receiver=receiver@entry=0x1b4bd70, e=e@entry=0x7ffc425b1f30) at kernel/qapplication.cpp:3716
#22 0x000000301db604b6 in QApplication::notify(QObject*, QEvent*) (this=0x7ffc425b2240, receiver=0x1b4bd70, e=0x7ffc425b1f30) at kernel/qapplication.cpp:3499
#23 0x00000030176865eb in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffc425b2240, receiver=0x1b4bd70, event=event@entry=0x7ffc425b1f30) at kernel/qcoreapplication.cpp:965
#24 0x00000030176db85d in QTimerInfoList::activateTimers() (event=0x7ffc425b1f30, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#25 0x00000030176db85d in QTimerInfoList::activateTimers() (this=0x1a3cc50) at kernel/qtimerinfo_unix.cpp:637
#26 0x00000030176dbd99 in idleTimerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#27 0x00000030176dbd99 in idleTimerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:224
#28 0x0000003002c4a1a7 in g_main_context_dispatch (context=0x7f39880016f0) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3154
#29 0x0000003002c4a1a7 in g_main_context_dispatch (context=context@entry=0x7f39880016f0) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3769
#30 0x0000003002c4a400 in g_main_context_iterate (context=context@entry=0x7f39880016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3840
#31 0x0000003002c4a4ac in g_main_context_iteration (context=0x7f39880016f0, may_block=may_block@entry=1) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3901
#32 0x00000030176dca5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1a2e240, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#33 0x0000003017683daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc425b2170, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#34 0x000000301768be4c in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1229
#35 0x0000000000407671 in main ()

Reported using DrKonqi