Application: plasmashell (5.10.5)

Qt Version: 5.9.1
Frameworks Version: 5.38.0
Operating System: Linux 4.13.0-17-generic x86_64
Distribution: Ubuntu 17.10

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

I have unlocked screen after resuming computer from sleep-state.

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".
[Current thread is 1 (Thread 0x7fa0572d61c0 (LWP 13797))]

Thread 18 (Thread 0x7f9f5cf00700 (LWP 21135)):
#0  0x00007fa050905ffd in __GI___libc_read (fd=64, buf=0x7f9f5ceffaee, nbytes=10) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007fa043b6de41 in pa_read () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-10.0.so
#2  0x00007fa0449479fe in pa_mainloop_prepare () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fa044948470 in pa_mainloop_iterate () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fa044948530 in pa_mainloop_run () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fa044956399 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fa043b9ced8 in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-10.0.so
#7  0x00007fa0501aa7fc in start_thread (arg=0x7f9f5cf00700) at pthread_create.c:465
#8  0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f9f5db01700 (LWP 11221)):
#0  0x00007fa0501b1072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f9f44299694) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fa0501b1072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f9f44299640, cond=0x7f9f44299668) at pthread_cond_wait.c:502
#2  0x00007fa0501b1072 in __pthread_cond_wait (cond=0x7f9f44299668, mutex=0x7f9f44299640) at pthread_cond_wait.c:655
#3  0x00007fa0510156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa054d84ae8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fa054d84f4a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa05101429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa0501aa7fc in start_thread (arg=0x7f9f5db01700) at pthread_create.c:465
#8  0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f9f5f502700 (LWP 10929)):
#0  0x00007fa0501b1072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a5b23b7f90) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fa0501b1072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55a5b23b7f40, cond=0x55a5b23b7f68) at pthread_cond_wait.c:502
#2  0x00007fa0501b1072 in __pthread_cond_wait (cond=0x55a5b23b7f68, mutex=0x55a5b23b7f40) at pthread_cond_wait.c:655
#3  0x00007fa0510156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa054d84ae8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fa054d84f4a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa05101429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa0501aa7fc in start_thread (arg=0x7f9f5f502700) at pthread_create.c:465
#8  0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f9f64eb0700 (LWP 1013)):
#0  0x00007fa0501b1072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fa030066e64) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fa0501b1072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fa030066e10, cond=0x7fa030066e38) at pthread_cond_wait.c:502
#2  0x00007fa0501b1072 in __pthread_cond_wait (cond=0x7fa030066e38, mutex=0x7fa030066e10) at pthread_cond_wait.c:655
#3  0x00007fa0510156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa054d84ae8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fa054d84f4a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa05101429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa0501aa7fc in start_thread (arg=0x7f9f64eb0700) at pthread_create.c:465
#8  0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f9f659fc700 (LWP 30711)):
#0  0x00007fa0501b1072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fa030047120) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fa0501b1072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fa0300470d0, cond=0x7fa0300470f8) at pthread_cond_wait.c:502
#2  0x00007fa0501b1072 in __pthread_cond_wait (cond=0x7fa0300470f8, mutex=0x7fa0300470d0) at pthread_cond_wait.c:655
#3  0x00007fa0510156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa054d84ae8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fa054d84f4a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa05101429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa0501aa7fc in start_thread (arg=0x7f9f659fc700) at pthread_create.c:465
#8  0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f9f67fff700 (LWP 20398)):
#0  0x00007fa0501b1072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a5b25c0994) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fa0501b1072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55a5b25c0940, cond=0x55a5b25c0968) at pthread_cond_wait.c:502
#2  0x00007fa0501b1072 in __pthread_cond_wait (cond=0x55a5b25c0968, mutex=0x55a5b25c0940) at pthread_cond_wait.c:655
#3  0x00007fa0510156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa054d84ae8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fa054d84f4a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa05101429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa0501aa7fc in start_thread (arg=0x7f9f67fff700) at pthread_create.c:465
#8  0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f9f66ffd700 (LWP 13833)):
#0  0x00007fa0501b1072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a5b25e4170) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fa0501b1072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55a5b25e4120, cond=0x55a5b25e4148) at pthread_cond_wait.c:502
#2  0x00007fa0501b1072 in __pthread_cond_wait (cond=0x55a5b25e4148, mutex=0x55a5b25e4120) at pthread_cond_wait.c:655
#3  0x00007fa0510156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa054d84ae8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fa054d84f4a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa05101429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa0501aa7fc in start_thread (arg=0x7f9f66ffd700) at pthread_create.c:465
#8  0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f9f677fe700 (LWP 13818)):
#0  0x00007fa0501b1072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a5b1ffdc24) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fa0501b1072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55a5b1ffdbd0, cond=0x55a5b1ffdbf8) at pthread_cond_wait.c:502
#2  0x00007fa0501b1072 in __pthread_cond_wait (cond=0x55a5b1ffdbf8, mutex=0x55a5b1ffdbd0) at pthread_cond_wait.c:655
#3  0x00007fa0510156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa054d84ae8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fa054d84f4a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa05101429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa0501aa7fc in start_thread (arg=0x7f9f677fe700) at pthread_create.c:465
#8  0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f9f7a37b700 (LWP 13812)):
[KCrash Handler]
#6  0x00007fa0482b0c25 in  () at /usr/lib/nvidia-384/libnvidia-glcore.so.384.90
#7  0x00007fa0482b2a7a in  () at /usr/lib/nvidia-384/libnvidia-glcore.so.384.90
#8  0x00007fa0482b8707 in  () at /usr/lib/nvidia-384/libnvidia-glcore.so.384.90
#9  0x00007fa047ef353e in  () at /usr/lib/nvidia-384/libnvidia-glcore.so.384.90
#10 0x00007fa047ef5e96 in  () at /usr/lib/nvidia-384/libnvidia-glcore.so.384.90
#11 0x00007fa054d3f52b in QSGBatchRenderer::Renderer::unmap(QSGBatchRenderer::Buffer*, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007fa054d41240 in QSGBatchRenderer::Renderer::uploadBatch(QSGBatchRenderer::Batch*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007fa054d4bc26 in QSGBatchRenderer::Renderer::render() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007fa054d3c66d in QSGRenderer::renderScene(QSGBindable const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007fa054d3cb2b in QSGRenderer::renderScene(unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007fa054d76f50 in QSGDefaultRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007fa054dd39b8 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007fa054d7fffc in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007fa054d84f08 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007fa05101429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007fa0501aa7fc in start_thread (arg=0x7f9f7a37b700) at pthread_create.c:465
#22 0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f9f827b7700 (LWP 13805)):
#0  0x00007ffd271a7979 in  ()
#1  0x00007ffd271a7c30 in clock_gettime ()
#2  0x00007fa050925946 in __GI___clock_gettime (clock_id=1, tp=0x7f9f827b69f0) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007fa051249db1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa0512485e9 in QTimerInfoList::updateCurrentTime() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa051248bc5 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa05124a82c in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa04b46c6a8 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fa04b46d09b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fa04b46d27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fa05124a49b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fa0511efe3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fa05100f3ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f9f84dd0717 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#14 0x00007fa05101429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fa0501aa7fc in start_thread (arg=0x7f9f827b7700) at pthread_create.c:465
#16 0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f9f9cfcb700 (LWP 13804)):
#0  0x00007fa0501b1072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a5b09a1214) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fa0501b1072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55a5b09a11c0, cond=0x55a5b09a11e8) at pthread_cond_wait.c:502
#2  0x00007fa0501b1072 in __pthread_cond_wait (cond=0x55a5b09a11e8, mutex=0x55a5b09a11c0) at pthread_cond_wait.c:655
#3  0x00007fa0510156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa054d84ae8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fa054d84f4a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa05101429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa0501aa7fc in start_thread (arg=0x7f9f9cfcb700) at pthread_create.c:465
#8  0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f9f9dfb6700 (LWP 13803)):
#0  0x00007fa05124a3ae in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fa04b46c6a8 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa04b46d09b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa04b46d27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa05124a49b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa0511efe3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa05100f3ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa054d05846 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007fa05101429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fa0501aa7fc in start_thread (arg=0x7f9f9dfb6700) at pthread_create.c:465
#10 0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fa02b5ad700 (LWP 13802)):
#0  0x00007fa0501b1072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fa056ca8fb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fa0501b1072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fa056ca8f68, cond=0x7fa056ca8f90) at pthread_cond_wait.c:502
#2  0x00007fa0501b1072 in __pthread_cond_wait (cond=0x7fa056ca8f90, mutex=0x7fa056ca8f68) at pthread_cond_wait.c:655
#3  0x00007fa0569b4bd4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007fa0569b4c19 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007fa0501aa7fc in start_thread (arg=0x7fa02b5ad700) at pthread_create.c:465
#6  0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fa035761700 (LWP 13801)):
#0  0x00007fa05090a901 in __GI___poll (fds=0x7fa024002de0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa04b46d169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa04b46d27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa05124a49b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa0511efe3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa05100f3ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa05416ff45 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fa05101429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa0501aa7fc in start_thread (arg=0x7fa035761700) at pthread_create.c:465
#9  0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fa0379d4700 (LWP 13800)):
#0  0x00007fa05100bb6f in QMutex::unlock() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fa05124a3cf in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fa04b46c6a8 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa04b46d09b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa04b46d27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa05124a49b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa0511efe3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa05100f3ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa05416ff45 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007fa05101429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fa0501aa7fc in start_thread (arg=0x7fa0379d4700) at pthread_create.c:465
#11 0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fa03d584700 (LWP 13799)):
#0  0x00007fa04b4b25b9 in g_mutex_lock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fa04b46c6b3 in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa04b46d09b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa04b46d27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa05124a49b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa0511efe3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa05100f3ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa0516c6e45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007fa05101429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fa0501aa7fc in start_thread (arg=0x7fa03d584700) at pthread_create.c:465
#10 0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fa03f5e6700 (LWP 13798)):
#0  0x00007fa05090a901 in __GI___poll (fds=0x7fa03f5e5bb8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa05590b747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fa05590d53a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fa041d61f09 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fa05101429d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa0501aa7fc in start_thread (arg=0x7fa03f5e6700) at pthread_create.c:465
#6  0x00007fa050916b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fa0572d61c0 (LWP 13797)):
#0  0x00007fa0501b1072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a5b13c3d70) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fa0501b1072 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55a5b13c3d20, cond=0x55a5b13c3d48) at pthread_cond_wait.c:502
#2  0x00007fa0501b1072 in __pthread_cond_wait (cond=0x55a5b13c3d48, mutex=0x55a5b13c3d20) at pthread_cond_wait.c:655
#3  0x00007fa0510156cb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa054d812bd in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fa054d83dad in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa054d84699 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fa051a46d35 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#8  0x00007fa054dddd05 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x000055a5aeb3fa4b in  ()
#10 0x00007fa0521f646c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007fa0521fdd34 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007fa0511f1de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fa051a3be5f in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#14 0x00007fa051a3ca9d in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#15 0x00007fa051a14cab in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#16 0x00007fa041dc45a0 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#17 0x00007fa04b46cfb7 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007fa04b46d1f0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fa04b46d27c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fa05124a47f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007fa0511efe3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007fa0511f8da4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x000055a5aeb30cc2 in  ()
#24 0x00007fa0508231c1 in __libc_start_main (main=0x55a5aeb30160, argc=1, argv=0x7ffd270f6318, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd270f6308) at ../csu/libc-start.c:308
#25 0x000055a5aeb3103a in _start ()

Reported using DrKonqi