Application: plasmashell (5.9.4)

Qt Version: 5.7.1
Frameworks Version: 5.33.0
Operating System: Linux 4.8.0-46-generic x86_64
Distribution: KDE neon User Edition 5.9

-- Information about the crash:
- What I was doing when the application crashed:
As the PC was connecting to a wifi network, I connected to another wifi network by clicking "Connect" on the other wifi network. I did not abort the other connection by clicking "Disconnect" first. I've had similar issues where plasmashell crashes when using these "Connect/Disconnect" button in the system tray.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), 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 0x7f67cb5a48c0 (LWP 15119))]

Thread 26 (Thread 0x7f66975fe700 (LWP 16664)):
#0  0x00007f67c5ee5b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f67c165f38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f67c165f49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f67c680575b in QEventDispatcherGlib::processEvents (this=0x7f66900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f67c67b00ba in QEventLoop::exec (this=this@entry=0x7f66975fdce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f67c65dff64 in QThread::exec (this=this@entry=0x3076df0) at thread/qthread.cpp:507
#6  0x00007f67c8c10bf5 in QQmlThreadPrivate::run (this=0x3076df0) at qml/ftw/qqmlthread.cpp:147
#7  0x00007f67c65e4b48 in QThreadPrivate::start (arg=0x3076df0) at thread/qthread_unix.cpp:368
#8  0x00007f67c548a6ba in start_thread (arg=0x7f66975fe700) at pthread_create.c:333
#9  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7f66af3fe700 (LWP 16642)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f67ac25ee44 in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#2  0x00007f67a2585394 in ?? () from /usr/lib/nvidia-378/libnvidia-glcore.so.378.13
#3  0x00007f67ac25e12c in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#4  0x00007f67c548a6ba in start_thread (arg=0x7f66af3fe700) at pthread_create.c:333
#5  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7f66afbff700 (LWP 16641)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f67c65e59fb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x26ba540) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x24b01d8, mutex=mutex@entry=0x24b01d0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f67c960747d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x24b01c8) at scenegraph/qsgthreadedrenderloop.cpp:242
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x24b0150) at scenegraph/qsgthreadedrenderloop.cpp:690
#5  0x00007f67c9607d55 in QSGRenderThread::run (this=0x24b0150) at scenegraph/qsgthreadedrenderloop.cpp:719
#6  0x00007f67c65e4b48 in QThreadPrivate::start (arg=0x24b0150) at thread/qthread_unix.cpp:368
#7  0x00007f67c548a6ba in start_thread (arg=0x7f66afbff700) at pthread_create.c:333
#8  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f66c4d71700 (LWP 16497)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f67ac25ee44 in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#2  0x00007f67a2585394 in ?? () from /usr/lib/nvidia-378/libnvidia-glcore.so.378.13
#3  0x00007f67ac25e12c in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#4  0x00007f67c548a6ba in start_thread (arg=0x7f66c4d71700) at pthread_create.c:333
#5  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f66c5572700 (LWP 16496)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f67c65e59fb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1926d50) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x1fbec48, mutex=mutex@entry=0x1fbec40, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f67c960747d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x1fbec38) at scenegraph/qsgthreadedrenderloop.cpp:242
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x1fbebc0) at scenegraph/qsgthreadedrenderloop.cpp:690
#5  0x00007f67c9607d55 in QSGRenderThread::run (this=0x1fbebc0) at scenegraph/qsgthreadedrenderloop.cpp:719
#6  0x00007f67c65e4b48 in QThreadPrivate::start (arg=0x1fbebc0) at thread/qthread_unix.cpp:368
#7  0x00007f67c548a6ba in start_thread (arg=0x7f66c5572700) at pthread_create.c:333
#8  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f66c63b1700 (LWP 16307)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f67ac25ee44 in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#2  0x00007f67a2585394 in ?? () from /usr/lib/nvidia-378/libnvidia-glcore.so.378.13
#3  0x00007f67ac25e12c in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#4  0x00007f67c548a6ba in start_thread (arg=0x7f66c63b1700) at pthread_create.c:333
#5  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f66c6bb2700 (LWP 16306)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f67c65e59fb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1fad590) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x10b9ba8, mutex=mutex@entry=0x10b9ba0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f67c960747d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x10b9b98) at scenegraph/qsgthreadedrenderloop.cpp:242
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x10b9b20) at scenegraph/qsgthreadedrenderloop.cpp:690
#5  0x00007f67c9607d55 in QSGRenderThread::run (this=0x10b9b20) at scenegraph/qsgthreadedrenderloop.cpp:719
#6  0x00007f67c65e4b48 in QThreadPrivate::start (arg=0x10b9b20) at thread/qthread_unix.cpp:368
#7  0x00007f67c548a6ba in start_thread (arg=0x7f66c6bb2700) at pthread_create.c:333
#8  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f66c75fe700 (LWP 16305)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f67ac25ee44 in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#2  0x00007f67a2585394 in ?? () from /usr/lib/nvidia-378/libnvidia-glcore.so.378.13
#3  0x00007f67ac25e12c in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#4  0x00007f67c548a6ba in start_thread (arg=0x7f66c75fe700) at pthread_create.c:333
#5  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f66c7dff700 (LWP 16304)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f67c65e59fb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x2537990) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x1fb3b88, mutex=mutex@entry=0x1fb3b80, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f67c960747d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x1fb3b78) at scenegraph/qsgthreadedrenderloop.cpp:242
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x1fb3b00) at scenegraph/qsgthreadedrenderloop.cpp:690
#5  0x00007f67c9607d55 in QSGRenderThread::run (this=0x1fb3b00) at scenegraph/qsgthreadedrenderloop.cpp:719
#6  0x00007f67c65e4b48 in QThreadPrivate::start (arg=0x1fb3b00) at thread/qthread_unix.cpp:368
#7  0x00007f67c548a6ba in start_thread (arg=0x7f66c7dff700) at pthread_create.c:333
#8  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f66dd640700 (LWP 16280)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f67ac25ee44 in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#2  0x00007f67a2585394 in ?? () from /usr/lib/nvidia-378/libnvidia-glcore.so.378.13
#3  0x00007f67ac25e12c in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#4  0x00007f67c548a6ba in start_thread (arg=0x7f66dd640700) at pthread_create.c:333
#5  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f66df16e700 (LWP 16279)):
[KCrash Handler]
#6  Plotter::interpolate (this=this@entry=0x2cc9ba0, p=..., x0=x0@entry=0, x1=x1@entry=0) at /workspace/build/src/qmlcontrols/kquickcontrolsaddons/plotter.cpp:519
#7  0x00007f671356a1ed in Plotter::render (this=0x2cc9ba0) at /workspace/build/src/qmlcontrols/kquickcontrolsaddons/plotter.cpp:597
#8  0x00007f67c67dd1f6 in QtPrivate::QSlotObjectBase::call (a=0x7f66df16db10, r=0x2cc9ba0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:101
#9  QMetaObject::activate (sender=sender@entry=0x15fd030, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3723
#10 0x00007f67c67dd837 in QMetaObject::activate (sender=sender@entry=0x15fd030, m=m@entry=0x7f67c9861080 <QQuickWindow::staticMetaObject>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3602
#11 0x00007f67c962e133 in QQuickWindow::beforeRendering (this=this@entry=0x15fd030) at .moc/moc_qquickwindow.cpp:488
#12 0x00007f67c963262e in QQuickWindowPrivate::renderSceneGraph (this=this@entry=0x1604140, size=...) at items/qquickwindow.cpp:446
#13 0x00007f67c96033cd in QSGRenderThread::syncAndRender (this=this@entry=0x2498050) at scenegraph/qsgthreadedrenderloop.cpp:629
#14 0x00007f67c9607c2c in QSGRenderThread::run (this=0x2498050) at scenegraph/qsgthreadedrenderloop.cpp:710
#15 0x00007f67c65e4b48 in QThreadPrivate::start (arg=0x2498050) at thread/qthread_unix.cpp:368
#16 0x00007f67c548a6ba in start_thread (arg=0x7f66df16e700) at pthread_create.c:333
#17 0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f66de06c700 (LWP 15168)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f67ac25ee44 in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#2  0x00007f67a2585394 in ?? () from /usr/lib/nvidia-378/libnvidia-glcore.so.378.13
#3  0x00007f67ac25e12c in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#4  0x00007f67c548a6ba in start_thread (arg=0x7f66de06c700) at pthread_create.c:333
#5  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f66de96d700 (LWP 15167)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f67c65e59fb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x2070210) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x20dab58, mutex=mutex@entry=0x20dab50, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f67c960747d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x20dab48) at scenegraph/qsgthreadedrenderloop.cpp:242
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x20daad0) at scenegraph/qsgthreadedrenderloop.cpp:690
#5  0x00007f67c9607d55 in QSGRenderThread::run (this=0x20daad0) at scenegraph/qsgthreadedrenderloop.cpp:719
#6  0x00007f67c65e4b48 in QThreadPrivate::start (arg=0x20daad0) at thread/qthread_unix.cpp:368
#7  0x00007f67c548a6ba in start_thread (arg=0x7f66de96d700) at pthread_create.c:333
#8  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f66f111e700 (LWP 15145)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f67ac25ee44 in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#2  0x00007f67a2585394 in ?? () from /usr/lib/nvidia-378/libnvidia-glcore.so.378.13
#3  0x00007f67ac25e12c in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#4  0x00007f67c548a6ba in start_thread (arg=0x7f66f111e700) at pthread_create.c:333
#5  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f66f191f700 (LWP 15144)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f67c65e59fb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x196e440) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x1c94c88, mutex=mutex@entry=0x1c94c80, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f67c960747d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x1c94c78) at scenegraph/qsgthreadedrenderloop.cpp:242
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x1c94c00) at scenegraph/qsgthreadedrenderloop.cpp:690
#5  0x00007f67c9607d55 in QSGRenderThread::run (this=0x1c94c00) at scenegraph/qsgthreadedrenderloop.cpp:719
#6  0x00007f67c65e4b48 in QThreadPrivate::start (arg=0x1c94c00) at thread/qthread_unix.cpp:368
#7  0x00007f67c548a6ba in start_thread (arg=0x7f66f191f700) at pthread_create.c:333
#8  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f66f3dee700 (LWP 15134)):
#0  QTimerInfoList::timerWait (this=0x7f66ec0030d0, tm=...) at kernel/qtimerinfo_unix.cpp:394
#1  0x00007f67c6804d0e in timerSourcePrepareHelper (timeout=0x7f66f3dedaf4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:132
#2  timerSourcePrepare (source=<optimized out>, timeout=0x7f66f3dedaf4) at kernel/qeventdispatcher_glib.cpp:165
#3  0x00007f67c165e91d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f67c165f2bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f67c165f49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f67c680575b in QEventDispatcherGlib::processEvents (this=0x7f66ec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f67c67b00ba in QEventLoop::exec (this=this@entry=0x7f66f3dedcc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#8  0x00007f67c65dff64 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:507
#9  0x00007f66f62cc587 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#10 0x00007f67c65e4b48 in QThreadPrivate::start (arg=0x1954d70) at thread/qthread_unix.cpp:368
#11 0x00007f67c548a6ba in start_thread (arg=0x7f66f3dee700) at pthread_create.c:333
#12 0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f6710ae8700 (LWP 15129)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f67ac25ee44 in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#2  0x00007f67a2585394 in ?? () from /usr/lib/nvidia-378/libnvidia-glcore.so.378.13
#3  0x00007f67ac25e12c in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#4  0x00007f67c548a6ba in start_thread (arg=0x7f6710ae8700) at pthread_create.c:333
#5  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f67112e9700 (LWP 15128)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f67c65e59fb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x78d450) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0xf6dfe8, mutex=mutex@entry=0xf6dfe0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f67c960747d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0xf6dfd8) at scenegraph/qsgthreadedrenderloop.cpp:242
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0xf6df60) at scenegraph/qsgthreadedrenderloop.cpp:690
#5  0x00007f67c9607d55 in QSGRenderThread::run (this=0xf6df60) at scenegraph/qsgthreadedrenderloop.cpp:719
#6  0x00007f67c65e4b48 in QThreadPrivate::start (arg=0xf6df60) at thread/qthread_unix.cpp:368
#7  0x00007f67c548a6ba in start_thread (arg=0x7f67112e9700) at pthread_create.c:333
#8  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f67122d4700 (LWP 15127)):
#0  0x00007f67c5ee5b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f67c165f38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f67c165f49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f67c680575b in QEventDispatcherGlib::processEvents (this=0x7f670c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f67c67b00ba in QEventLoop::exec (this=this@entry=0x7f67122d3c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f67c65dff64 in QThread::exec (this=this@entry=0xf65c30) at thread/qthread.cpp:507
#6  0x00007f67c9597fc6 in QQuickPixmapReader::run (this=0xf65c30) at util/qquickpixmapcache.cpp:822
#7  0x00007f67c65e4b48 in QThreadPrivate::start (arg=0xf65c30) at thread/qthread_unix.cpp:368
#8  0x00007f67c548a6ba in start_thread (arg=0x7f67122d4700) at pthread_create.c:333
#9  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f67a17b9700 (LWP 15126)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f67ac25ee44 in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#2  0x00007f67a2585394 in ?? () from /usr/lib/nvidia-378/libnvidia-glcore.so.378.13
#3  0x00007f67ac25e12c in ?? () from /usr/lib/nvidia-378/libGLX_nvidia.so.0
#4  0x00007f67c548a6ba in start_thread (arg=0x7f67a17b9700) at pthread_create.c:333
#5  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f67a3fff700 (LWP 15124)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f67caffc6f4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f67caffc739 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f67c548a6ba in start_thread (arg=0x7f67a3fff700) at pthread_create.c:333
#4  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f67ae38e700 (LWP 15123)):
#0  0x00007f67c5ee5b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f67c165f38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f67c165f49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f67c680575b in QEventDispatcherGlib::processEvents (this=0x7f679c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f67c67b00ba in QEventLoop::exec (this=this@entry=0x7f67ae38dce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f67c65dff64 in QThread::exec (this=this@entry=0x7f32a0) at thread/qthread.cpp:507
#6  0x00007f67c8c10bf5 in QQmlThreadPrivate::run (this=0x7f32a0) at qml/ftw/qqmlthread.cpp:147
#7  0x00007f67c65e4b48 in QThreadPrivate::start (arg=0x7f32a0) at thread/qthread_unix.cpp:368
#8  0x00007f67c548a6ba in start_thread (arg=0x7f67ae38e700) at pthread_create.c:333
#9  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f67affff700 (LWP 15122)):
#0  0x00007f67c5ee5b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f67c165f38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f67c165f49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f67c680575b in QEventDispatcherGlib::processEvents (this=0x7f67a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f67c67b00ba in QEventLoop::exec (this=this@entry=0x7f67afffece0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f67c65dff64 in QThread::exec (this=this@entry=0x7c6330) at thread/qthread.cpp:507
#6  0x00007f67c8c10bf5 in QQmlThreadPrivate::run (this=0x7c6330) at qml/ftw/qqmlthread.cpp:147
#7  0x00007f67c65e4b48 in QThreadPrivate::start (arg=0x7c6330) at thread/qthread_unix.cpp:368
#8  0x00007f67c548a6ba in start_thread (arg=0x7f67affff700) at pthread_create.c:333
#9  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f67b5bda700 (LWP 15121)):
#0  0x00007f67c5ee5b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f67c165f38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f67c165f49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f67c680575b in QEventDispatcherGlib::processEvents (this=0x7f67a80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f67c67b00ba in QEventLoop::exec (this=this@entry=0x7f67b5bd9cd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f67c65dff64 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:507
#6  0x00007f67cb6dc735 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f67c65e4b48 in QThreadPrivate::start (arg=0x7f67cb750d60) at thread/qthread_unix.cpp:368
#8  0x00007f67c548a6ba in start_thread (arg=0x7f67b5bda700) at pthread_create.c:333
#9  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f67b7817700 (LWP 15120)):
#0  0x00007f67c5ee5b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f67c9f5dc62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f67c9f5f8d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f67b9f8fd79 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f67c65e4b48 in QThreadPrivate::start (arg=0x707780) at thread/qthread_unix.cpp:368
#5  0x00007f67c548a6ba in start_thread (arg=0x7f67b7817700) at pthread_create.c:333
#6  0x00007f67c5ef182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f67cb5a48c0 (LWP 15119)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f67c65e59fb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x25226a0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2498090, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007f67c96047a5 in QSGThreadedRenderLoop::polishAndSync (this=this@entry=0x988d70, w=<optimized out>, inExpose=inExpose@entry=false) at scenegraph/qsgthreadedrenderloop.cpp:1183
#4  0x00007f67c96050da in QSGThreadedRenderLoop::handleUpdateRequest (this=0x988d70, window=0x15fd030) at scenegraph/qsgthreadedrenderloop.cpp:1010
#5  0x00007f67c963cf67 in QQuickWindow::event (this=0x15fd030, e=0x7ffd4abdaf30) at items/qquickwindow.cpp:1527
#6  0x00007f67cb12d97b in PlasmaQuick::Dialog::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#7  0x00007f67c7090ecc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x00007f67c70988c6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007f67c67b20c8 in QCoreApplication::notifyInternal2 (receiver=0x15fd030, event=0x7ffd4abdaf30) at kernel/qcoreapplication.cpp:988
#10 0x00007f67c6b014de in QWindowPrivate::deliverUpdateRequest() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#11 0x00007f67c6b01a29 in QWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#12 0x00007f67c963cf15 in QQuickWindow::event (this=0x15fd030, e=0x7ffd4abdb390) at items/qquickwindow.cpp:1546
#13 0x00007f67cb12d97b in PlasmaQuick::Dialog::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#14 0x00007f67c7090ecc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f67c70988c6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f67c67b20c8 in QCoreApplication::notifyInternal2 (receiver=0x15fd030, event=event@entry=0x7ffd4abdb390) at kernel/qcoreapplication.cpp:988
#17 0x00007f67c680468e in QCoreApplication::sendEvent (event=0x7ffd4abdb390, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#18 QTimerInfoList::activateTimers (this=0x731390) at kernel/qtimerinfo_unix.cpp:644
#19 0x00007f67c6804bc1 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:182
#20 0x00007f67c165f197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f67c165f3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f67c165f49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f67c680573f in QEventDispatcherGlib::processEvents (this=0x744ac0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#24 0x00007f67c67b00ba in QEventLoop::exec (this=this@entry=0x7ffd4abdb5e0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#25 0x00007f67c67b86cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1261
#26 0x000000000041cb08 in main (argc=1, argv=<optimized out>) at /workspace/build/shell/main.cpp:166

Reported using DrKonqi