Application: plasmashell (5.12.7)
 (Compiled from sources)
Qt Version: 5.9.5
Frameworks Version: 5.47.0
Operating System: Linux 4.18.0-16-generic x86_64
Distribution: Ubuntu 18.04.2 LTS

-- Information about the crash:
- What I was doing when the application crashed: configured the widget named netspeed

- Unusual behavior I noticed: crashed the screen got blanked 		

- Custom settings of the application: nothing

i was just configuring the widget

The crash can be reproduced every time.

-- 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 0x7f54f7853800 (LWP 2446))]

Thread 16 (Thread 0x7f53f94f4700 (LWP 19829)):
#0  0x00007f54f06ab9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558d016f6630) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558d016f65e0, cond=0x558d016f6608) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558d016f6608, mutex=0x558d016f65e0) at pthread_cond_wait.c:655
#3  0x00007f54f15255ab in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f54f52aa6a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f54f52aab0a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f54f152417d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f54f06a56db in start_thread (arg=0x7f53f94f4700) at pthread_create.c:463
#8  0x00007f54f0e1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f53eb7ff700 (LWP 19827)):
#0  0x00007f54f152300d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f54f175bdb1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f54eb97af51 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f54eb97b4e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f54eb97b64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f54f175b9bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f54f1700a1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f54f151f23a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f54f46916f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f54f152417d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f54f06a56db in start_thread (arg=0x7f53eb7ff700) at pthread_create.c:463
#11 0x00007f54f0e1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f53fb9f6700 (LWP 19047)):
#0  0x00007f54f06ab9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558cfdb877b0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558cfdb87760, cond=0x558cfdb87788) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558cfdb87788, mutex=0x558cfdb87760) at pthread_cond_wait.c:655
#3  0x00007f54f15255ab in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f54f52aa6a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f54f52aab0a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f54f152417d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f54f06a56db in start_thread (arg=0x7f53fb9f6700) at pthread_create.c:463
#8  0x00007f54f0e1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f53fa1f5700 (LWP 2752)):
#0  0x00007f54f06ab9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558cfc00db94) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558cfc00db40, cond=0x558cfc00db68) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558cfc00db68, mutex=0x558cfc00db40) at pthread_cond_wait.c:655
#3  0x00007f54f15255ab in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f54f52aa6a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f54f52aab0a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f54f152417d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f54f06a56db in start_thread (arg=0x7f53fa1f5700) at pthread_create.c:463
#8  0x00007f54f0e1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f541594c700 (LWP 2747)):
#0  0x00007f54f06ab9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558cfed49da0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558cfed49d50, cond=0x558cfed49d78) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558cfed49d78, mutex=0x558cfed49d50) at pthread_cond_wait.c:655
#3  0x00007f54f15255ab in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f54f52aa6a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f54f52aab0a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f54f152417d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f54f06a56db in start_thread (arg=0x7f541594c700) at pthread_create.c:463
#8  0x00007f54f0e1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f541643d700 (LWP 2732)):
#0  0x00007f54f06ab9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558cfeada614) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558cfeada5c0, cond=0x558cfeada5e8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558cfeada5e8, mutex=0x558cfeada5c0) at pthread_cond_wait.c:655
#3  0x00007f54f15255ab in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f54f52aa6a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f54f52aab0a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f54f152417d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f54f06a56db in start_thread (arg=0x7f541643d700) at pthread_create.c:463
#8  0x00007f54f0e1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f541794e700 (LWP 2726)):
#0  0x00007f54f06ab9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558cfe3465f0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558cfe3465a0, cond=0x558cfe3465c8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558cfe3465c8, mutex=0x558cfe3465a0) at pthread_cond_wait.c:655
#3  0x00007f54f15255ab in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f54f52aa6a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f54f52aab0a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f54f152417d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f54f06a56db in start_thread (arg=0x7f541794e700) at pthread_create.c:463
#8  0x00007f54f0e1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f541f586700 (LWP 2675)):
#0  0x00007f54f06ab9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558cfc4e4be4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558cfc4e4b90, cond=0x558cfc4e4bb8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558cfc4e4bb8, mutex=0x558cfc4e4b90) at pthread_cond_wait.c:655
#3  0x00007f54f15255ab in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f54f52aa6a8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f54f52aab0a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f54f152417d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f54f06a56db in start_thread (arg=0x7f541f586700) at pthread_create.c:463
#8  0x00007f54f0e1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f542498b700 (LWP 2665)):
#0  0x00007ffd9e0a2b24 in clock_gettime ()
#1  0x00007f54f0e2eea6 in __GI___clock_gettime (clock_id=1, tp=0x7f542498aad0) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f54f175b2d1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f54f1759b09 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f54f175a0e5 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f54f175b72e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f54eb97aa98 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f54eb97b46b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f54eb97b64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f54f175b9bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f54f1700a1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f54f151f23a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f5425054747 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#13 0x00007f54f152417d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f54f06a56db in start_thread (arg=0x7f542498b700) at pthread_create.c:463
#15 0x00007f54f0e1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f543d4a4700 (LWP 2583)):
#0  0x00007f54eb9c1064 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f54eb97b4f6 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f54eb97b64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f54f175b9bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f54f1700a1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f54f151f23a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f54f522b2a6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f54f152417d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f54f06a56db in start_thread (arg=0x7f543d4a4700) at pthread_create.c:463
#9  0x00007f54f0e1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f54cc9b8700 (LWP 2564)):
#0  0x00007f54f06ab9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f54f720dfb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f54f720df68, cond=0x7f54f720df90) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f54f720df90, mutex=0x7f54f720df68) at pthread_cond_wait.c:655
#3  0x00007f54f6f175f4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f54f6f17639 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f54f06a56db in start_thread (arg=0x7f54cc9b8700) at pthread_create.c:463
#6  0x00007f54f0e1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f54ceb95700 (LWP 2537)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:67
#1  0x00007f54f0e12be6 in __GI___poll (fds=0x7f54c4003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007f54eb97b539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f54eb97b64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f54f175b9bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f54f1700a1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f54f151f23a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f54f46916f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f54f152417d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f54f06a56db in start_thread (arg=0x7f54ceb95700) at pthread_create.c:463
#10 0x00007f54f0e1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f54d4c13700 (LWP 2531)):
#0  0x00007f54eb9c1049 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f54eb97b0c6 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f54eb97b5c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f54eb97b64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f54f175b9bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f54f1700a1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f54f151f23a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f54f46916f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f54f152417d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f54f06a56db in start_thread (arg=0x7f54d4c13700) at pthread_create.c:463
#10 0x00007f54f0e1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f54d6658700 (LWP 2516)):
#0  0x00007f54f0e12bf9 in __GI___poll (fds=0x7f54d0004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f54eb97b539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f54eb97b64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f54f175b9bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f54f1700a1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f54f151f23a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f54f1bd8d45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f54f152417d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f54f06a56db in start_thread (arg=0x7f54d6658700) at pthread_create.c:463
#9  0x00007f54f0e1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f54e0eb5700 (LWP 2455)):
#0  0x00007f54f0e12bf9 in __GI___poll (fds=0x7f54e0eb4ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f54f5e38747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f54f5e3a36a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f54e384e2a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f54f152417d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f54f06a56db in start_thread (arg=0x7f54e0eb5700) at pthread_create.c:463
#6  0x00007f54f0e1f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f54f7853800 (LWP 2446)):
[KCrash Handler]
#6  0x00007f54f27fc844 in QAbstractButton::isDown() const () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#7  0x00007f54daac3c2c in Kvantum::Style::drawItemText(QPainter*, QRect const&, int, QPalette const&, bool, QString const&, QPalette::ColorRole) const () from /usr/lib/x86_64-linux-gnu/qt5/plugins/styles/libkvantum.so
#8  0x00007f54daaac0b1 in Kvantum::Style::drawComplexControl(QStyle::ComplexControl, QStyleOptionComplex const*, QPainter*, QWidget const*) const () from /usr/lib/x86_64-linux-gnu/qt5/plugins/styles/libkvantum.so
#9  0x00007f5441686e13 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#10 0x00007f54416872bc in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#11 0x00007f54f52fc7f3 in QQuickWindowPrivate::polishItems() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f54f52a6d0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007f54f52a996d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f54f52aa259 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007f54f1f5a3d5 in QWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#16 0x00007f54f53046c5 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007f54f270a83c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f54f2712104 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f54f17029e8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f54f1f4f49f in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#21 0x00007f54f1f500dd in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#22 0x00007f54f1f272eb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#23 0x00007f54e38b11c0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#24 0x00007f54eb97b387 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f54eb97b5c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f54eb97b64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f54f175b99f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f54f1700a1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f54f1709ac4 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x0000558cfa011cfa in ?? ()
#31 0x00007f54f0d1fb97 in __libc_start_main (main=0x558cfa011320, argc=1, argv=0x7ffd9e0127c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd9e0127b8) at ../csu/libc-start.c:310
#32 0x0000558cfa01209a in _start ()

Reported using DrKonqi