Application: systemsettings5 (5.11.5)

Qt Version: 5.10.0
Frameworks Version: 5.41.0
Operating System: Linux 4.14.12-1-ARCH x86_64
Distribution: "Arch Linux"

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

I was searching for the lockscreen settings in the textbox and when i was typing "lockscreen" the application Stoped

The crash can be reproduced sometimes.

-- Backtrace:
Application: Preferencias del sistema (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcda164dc80 (LWP 1614))]

Thread 8 (Thread 0x7fcd65f29700 (LWP 1625)):
#0  0x00007fcd9d2243d8 in read () at /usr/lib/libc.so.6
#1  0x00007fcd96da2521 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fcd96d7990b in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007fcd96d7ae76 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fcd96d7afae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007fcd9db736b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fcd9db1582b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007fcd9d92578e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007fcd9b994a19 in  () at /usr/lib/libQt5Qml.so.5
#9  0x00007fcd9d92ab2d in  () at /usr/lib/libQt5Core.so.5
#10 0x00007fcd98f7c08c in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007fcd9d232e1f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7fcd66939700 (LWP 1624)):
#0  0x00007fcd9d2243d8 in read () at /usr/lib/libc.so.6
#1  0x00007fcd96da2521 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fcd96d7990b in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007fcd96d7ae76 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fcd96d7bf42 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#5  0x00007fcd67846208 in  () at /usr/lib/libgio-2.0.so.0
#6  0x00007fcd96d6f1eb in  () at /usr/lib/libglib-2.0.so.0
#7  0x00007fcd98f7c08c in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fcd9d232e1f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7fcd6713a700 (LWP 1623)):
#0  0x00007fcd9d22891b in poll () at /usr/lib/libc.so.6
#1  0x00007fcd96d7aed3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fcd96d7afae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fcd96d7b002 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fcd96d6f1eb in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007fcd98f7c08c in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fcd9d232e1f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fcd6ffff700 (LWP 1621)):
#0  0x00007fcd96da25f9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fcd96d7a5d6 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007fcd96d7adf6 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007fcd96d7afae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007fcd9db736b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fcd9db1582b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fcd9d92578e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007fcd9b994a19 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007fcd9d92ab2d in  () at /usr/lib/libQt5Core.so.5
#9  0x00007fcd98f7c08c in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fcd9d232e1f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fcd786a8700 (LWP 1620)):
#0  0x00007fcd9d22891b in poll () at /usr/lib/libc.so.6
#1  0x00007fcd96d7aed3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fcd96d7afae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fcd9db736b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fcd9db1582b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fcd9d92578e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fcd9b994a19 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007fcd9d92ab2d in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fcd98f7c08c in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fcd9d232e1f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fcd80bcf700 (LWP 1617)):
#0  0x00007fcd9d2243d8 in read () at /usr/lib/libc.so.6
#1  0x00007fcd96da2521 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fcd96d7990b in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007fcd96d7ae76 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fcd96d7afae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007fcd9db736b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fcd9db1582b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007fcd9d92578e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007fcd9df95416 in  () at /usr/lib/libQt5DBus.so.5
#9  0x00007fcd9d92ab2d in  () at /usr/lib/libQt5Core.so.5
#10 0x00007fcd98f7c08c in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007fcd9d232e1f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fcd8e33d700 (LWP 1616)):
#0  0x00007fcd9d22891b in poll () at /usr/lib/libc.so.6
#1  0x00007fcd997ff8e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007fcd99801679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007fcd910eb7aa in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fcd9d92ab2d in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fcd98f7c08c in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fcd9d232e1f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fcda164dc80 (LWP 1614)):
[KCrash Handler]
#5  0x00007fcd9db17142 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#6  0x00007fcd9be9ea17 in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007fcd9be9e69d in QQuickItemPrivate::filterKeyEvent(QKeyEvent*, bool) () at /usr/lib/libQt5Quick.so.5
#8  0x00007fcd9beaae76 in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/libQt5Quick.so.5
#9  0x00007fcd9beab1d6 in QQuickItem::event(QEvent*) () at /usr/lib/libQt5Quick.so.5
#10 0x00007fcd9f736e3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#11 0x00007fcd9f73e816 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#12 0x00007fcd9db171e0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#13 0x00007fcd9beb67aa in QQuickWindowPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/libQt5Quick.so.5
#14 0x00007fcd9bebad96 in QQuickWindow::keyReleaseEvent(QKeyEvent*) () at /usr/lib/libQt5Quick.so.5
#15 0x00007fcd9ef39a35 in QWindow::event(QEvent*) () at /usr/lib/libQt5Gui.so.5
#16 0x00007fcd9bec5626 in QQuickWindow::event(QEvent*) () at /usr/lib/libQt5Quick.so.5
#17 0x00007fcd9f736e3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#18 0x00007fcd9f73e816 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#19 0x00007fcd9db171e0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#20 0x00007fcd9c5492fd in QQuickWidget::keyReleaseEvent(QKeyEvent*) () at /usr/lib/libQt5QuickWidgets.so.5
#21 0x00007fcd9f776e38 in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#22 0x00007fcd9c54ab1c in QQuickWidget::event(QEvent*) () at /usr/lib/libQt5QuickWidgets.so.5
#23 0x00007fcd9f736e3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#24 0x00007fcd9f73fda3 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#25 0x00007fcd9db171e0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#26 0x00007fcd9f79498b in  () at /usr/lib/libQt5Widgets.so.5
#27 0x00007fcd9f736e3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#28 0x00007fcd9f73e816 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#29 0x00007fcd9db171e0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#30 0x00007fcd9ef2a012 in QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent*) () at /usr/lib/libQt5Gui.so.5
#31 0x00007fcd9ef2f166 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#32 0x00007fcd9ef06bbc in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#33 0x00007fcd9117328d in  () at /usr/lib/libQt5XcbQpa.so.5
#34 0x00007fcd9db1582b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#35 0x00007fcd9db1eb18 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#36 0x000055ae6917dcca in  ()
#37 0x00007fcd9d15df4a in __libc_start_main () at /usr/lib/libc.so.6
#38 0x000055ae6917dd4a in _start ()

Reported using DrKonqi