Application: systemsettings5 (5.3.1)

Qt Version: 5.4.2
Operating System: Linux 4.0.4-303.fc22.x86_64 x86_64
Distribution: "Fedora release 22 (Twenty Two)"

-- Information about the crash:
I was browsing desktop effects when KDE system settings crashed. ABRT crash handler told me it is a duplicate of https://bugzilla.redhat.com/show_bug.cgi?id=1226511 even if that bugreport is about an older version.

The crash can be reproduced every time.

-- Backtrace:
Application: Impostazioni di sistema (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f90ee70f880 (LWP 13563))]

Thread 2 (Thread 0x7f90e71a3700 (LWP 13564)):
#0  0x00000037344f666d in poll () at /lib64/libc.so.6
#1  0x00000032b980a182 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00000032b980bd07 in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f90e7dc57d9 in QXcbEventReader::run() () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#4  0x000000378829fe3e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x0000003734007555 in start_thread () at /lib64/libpthread.so.0
#6  0x0000003734501f3d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f90ee70f880 (LWP 13563)):
[KCrash Handler]
#5  0x00007f90f2b98882 in QQuickItemPrivate::addToDirtyList() () at /lib64/libQt5Quick.so.5
#6  0x00007f90f2b98923 in QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) () at /lib64/libQt5Quick.so.5
#7  0x00007f90f2ba3205 in QQuickItem::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /lib64/libQt5Quick.so.5
#8  0x00000037884b0f41 in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#9  0x00007f90f2ba29db in QQuickItem::event(QEvent*) () at /lib64/libQt5Quick.so.5
#10 0x00007f90f3f1077c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#11 0x00007f90f3f15e20 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#12 0x000000378847f67b in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#13 0x00000037884817b7 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#14 0x00000037884d6763 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#15 0x0000003736049a8a in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#16 0x0000003736049e20 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#17 0x0000003736049ecc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#18 0x00000037884d6b6f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#19 0x000000378847ceba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#20 0x0000003788484a2c in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#21 0x000000000040eb2c in main ()

Reported using DrKonqi