Application: kcmshell5 (5.14.4)

Qt Version: 5.12.0
Frameworks Version: 5.53.0
Operating System: Linux 4.20.0-arch1-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
KDE asked me for wifi password (even though I have the same wifi and same password for 2 weeks and have been using wifi everyday). I entered incorect one, just 6 characters long (I think that is the problem but don't know havet studied those logs). It has not protested that wifi password must be at least 8 chars like it does when typing the password directly in the widget.
Then I tryied to open the wifi settings from the widget and it crashed after few seconds even though I haven't done anything after opening the settings. Then when I tried to open it from system settings it worked.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings Module (kcmshell5), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f22b2f0d880 (LWP 4686))]

Thread 4 (Thread 0x7f22aa4b8700 (LWP 4689)):
#0  0x00007f22b949ad53 in  () at /usr/lib/libglib-2.0.so.0
#1  0x00007f22b949bd3b in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007f22b949c466 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f22b949c62e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f22bbbcf5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f22bbb7858c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f22bb9bc5c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f22bafdbb89 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f22bb9bd9cc in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f22ba729a9d in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f22bd038b23 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f22abbd5700 (LWP 4688)):
#0  0x00007f22bd0297a4 in read () at /usr/lib/libc.so.6
#1  0x00007f22b944a971 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f22b949b0b0 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f22b949c4e6 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f22b949c62e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f22bbbcf5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f22bbb7858c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f22bb9bc5c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f22bcb08ba6 in  () at /usr/lib/libQt5DBus.so.5
#9  0x00007f22bb9bd9cc in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f22ba729a9d in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f22bd038b23 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f22b1aaa700 (LWP 4687)):
#0  0x00007f22bd02dc21 in poll () at /usr/lib/libc.so.6
#1  0x00007f22ba3d1630 in  () at /usr/lib/libxcb.so.1
#2  0x00007f22ba3d32db in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f22b285996b in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f22bb9bd9cc in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f22ba729a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f22bd038b23 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f22b2f0d880 (LWP 4686)):
[KCrash Handler]
#6  0x00007f22bcf74d7f in raise () at /usr/lib/libc.so.6
#7  0x00007f22bcf5f672 in abort () at /usr/lib/libc.so.6
#8  0x00007f22bb9837fc in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f22bb3081f1 in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () at /usr/lib/libQt5Quick.so.5
#10 0x00007f22bb309332 in  () at /usr/lib/libQt5Quick.so.5
#11 0x00007f22bb3099f5 in  () at /usr/lib/libQt5Quick.so.5
#12 0x00007f22bbf576c5 in QWindow::event(QEvent*) () at /usr/lib/libQt5Gui.so.5
#13 0x00007f22bb38830c in QQuickWindow::event(QEvent*) () at /usr/lib/libQt5Quick.so.5
#14 0x00007f22bc53fe34 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#15 0x00007f22bc547671 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#16 0x00007f22bbb798f9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#17 0x00007f22bbf4cc11 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () at /usr/lib/libQt5Gui.so.5
#18 0x00007f22bbf4ceae in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#19 0x00007f22bbf2675c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#20 0x00007f22b285a99c in  () at /usr/lib/libQt5XcbQpa.so.5
#21 0x00007f22b949aa2f in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#22 0x00007f22b949c5e9 in  () at /usr/lib/libglib-2.0.so.0
#23 0x00007f22b949c62e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#24 0x00007f22bbbcf5a9 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#25 0x00007f22bbb7858c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#26 0x00007f22bbb80896 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#27 0x00007f22bd109dfd in kdemain () at /usr/lib/libkdeinit5_kcmshell5.so
#28 0x00007f22bcf61223 in __libc_start_main () at /usr/lib/libc.so.6
#29 0x000055c61a5ef05e in _start ()
[Inferior 1 (process 4686) detached]

Reported using DrKonqi