Application: systemsettings5 (5.10.2)

Qt Version: 5.9.0
Frameworks Version: 5.35.0
Operating System: Linux 4.11.6-3-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
I had selected the "Small icons" app switcher, the segfault happened when I clicked the "preview" button. I was not able to reproduce after restarting ksystemsettings.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Configuration du système (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f8249cb47c0 (LWP 1466))]

Thread 7 (Thread 0x7f8203fff700 (LWP 1593)):
#0  0x00007f82459662bd in poll () at /usr/lib/libc.so.6
#1  0x00007f823f83ebf9 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f823f83ed0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f824628ee9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f824623521a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f824605740a in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f8244349645 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f824605bcbd in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f824199b297 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f824597025f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f82015ed700 (LWP 1499)):
#0  0x00007f823f83eae8 in  () at /usr/lib/libglib-2.0.so.0
#1  0x00007f823f83ed0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#2  0x00007f824628ee9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#3  0x00007f824623521a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f824605740a in QThread::exec() () at /usr/lib/libQt5Core.so.5
#5  0x00007f8244349645 in  () at /usr/lib/libQt5Qml.so.5
#6  0x00007f824605bcbd in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f824199b297 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f824597025f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f8221ce1700 (LWP 1481)):
#0  0x00007f823f883a29 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f823f83ebbe in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f823f83ed0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f824628ee9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f824623521a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f824605740a in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f8244349645 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f824605bcbd in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f824199b297 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f824597025f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f8219b38700 (LWP 1480)):
#0  0x00007f823f83e0cd in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#1  0x00007f823f83eb2b in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f823f83ed0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f824628ee9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f824623521a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f824605740a in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f8244349645 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f824605bcbd in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f824199b297 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f824597025f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f822e491700 (LWP 1468)):
#0  0x00007f82459662bd in poll () at /usr/lib/libc.so.6
#1  0x00007f823f83ebf9 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f823f83ed0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f824628ee9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f824623521a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f824605740a in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f8246bb5d45 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f824605bcbd in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f824199b297 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f824597025f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f8236cf7700 (LWP 1467)):
#0  0x00007f82459662bd in poll () at /usr/lib/libc.so.6
#1  0x00007f824221f8e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f8242221679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f823988dd49 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f824605bcbd in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f824199b297 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f824597025f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f8249cb47c0 (LWP 1466)):
[KCrash Handler]
#5  0x00007f821b0a1dd1 in  () at /usr/lib/libKF5Plasma.so.5
#6  0x00007f821b0a007e in  () at /usr/lib/libKF5Plasma.so.5
#7  0x00007f821b0a02cf in Plasma::FrameSvg::mask() const () at /usr/lib/libKF5Plasma.so.5
#8  0x00007f821b9263fa in  () at /usr/lib/libKF5PlasmaQuick.so.5
#9  0x00007f821b927f96 in PlasmaQuick::Dialog::componentComplete() () at /usr/lib/libKF5PlasmaQuick.so.5
#10 0x00007f824433ca3d in  () at /usr/lib/libQt5Qml.so.5
#11 0x00007f82442ba31e in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () at /usr/lib/libQt5Qml.so.5
#12 0x00007f82442ba3e7 in QQmlComponentPrivate::completeCreate() () at /usr/lib/libQt5Qml.so.5
#13 0x00007f82442ba212 in QQmlComponent::create(QQmlContext*) () at /usr/lib/libQt5Qml.so.5
#14 0x00007f82136de4db in  () at /usr/lib/qt/plugins/kcm_kwintabbox.so
#15 0x00007f82136d8629 in  () at /usr/lib/qt/plugins/kcm_kwintabbox.so
#16 0x00007f8246265465 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#17 0x00007f8247fc8272 in QAbstractButton::clicked(bool) () at /usr/lib/libQt5Widgets.so.5
#18 0x00007f8247fc848a in  () at /usr/lib/libQt5Widgets.so.5
#19 0x00007f8247fc986a in  () at /usr/lib/libQt5Widgets.so.5
#20 0x00007f8247fc9a54 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/libQt5Widgets.so.5
#21 0x00007f8247e47d68 in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#22 0x00007f8247e0746c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#23 0x00007f8247e0f24f in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#24 0x00007f8246236b98 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#25 0x00007f8247e0e222 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /usr/lib/libQt5Widgets.so.5
#26 0x00007f8247e628db in  () at /usr/lib/libQt5Widgets.so.5
#27 0x00007f8247e64f4a in  () at /usr/lib/libQt5Widgets.so.5
#28 0x00007f8247e0746c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#29 0x00007f8247e0ecf4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#30 0x00007f8246236b98 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#31 0x00007f8247645a93 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/libQt5Gui.so.5
#32 0x00007f8247647575 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#33 0x00007f824761fc0b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#34 0x00007f82398f01b0 in  () at /usr/lib/libQt5XcbQpa.so.5
#35 0x00007f823f83ea47 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#36 0x00007f823f83ec78 in  () at /usr/lib/libglib-2.0.so.0
#37 0x00007f823f83ed0c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#38 0x00007f824628ee7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#39 0x00007f824623521a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#40 0x00007f824623da74 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#41 0x000000000040b54a in  ()
#42 0x00007f82458a343a in __libc_start_main () at /usr/lib/libc.so.6
#43 0x000000000040b5ca in _start ()

Reported using DrKonqi