Application: systemsettings (1.0)
KDE Platform Version: 4.5.2 (KDE 4.5.2)
Qt Version: 4.7.0
Operating System: Linux 2.6.35.6-48.fc14.x86_64 x86_64
Distribution: "Fedora release 14 (Laughlin)"

-- Information about the crash:
- What I was doing when the application crashed:
I changed sometthing in the system settings under "Login Screen". For some reason the password dialog was opened in the background when I pressed apply and so I didn't see it (happens often!). I clicked back in order to leave the login screen settings, chose discard when I was asked what to do with the changes and entered the login screen settings again. Shortly after I clicked apply a second time I got a error message ("Unable to authenticate/execute the action:  (code 6)") and then it crashed.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f0626660840 (LWP 14439))]

Thread 2 (Thread 0x7f060f01f700 (LWP 14442)):
#0  0x0000003f7c8da883 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x0000003f7ec42374 in g_main_context_poll (context=0xfa4560, block=1, dispatch=1, self=<value optimized out>) at gmain.c:3093
#2  g_main_context_iterate (context=0xfa4560, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2775
#3  0x0000003f7ec42c82 in g_main_loop_run (loop=0xfa4640) at gmain.c:2988
#4  0x00007f060f2c8774 in gdbus_shared_thread_func (data=<value optimized out>) at gdbusprivate.c:277
#5  0x0000003f7ec69446 in g_thread_create_proxy (data=0xfa4660) at gthread.c:1897
#6  0x0000003f7d006d5b in start_thread (arg=0x7f060f01f700) at pthread_create.c:301
#7  0x0000003f7c8e427d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f0626660840 (LWP 14439)):
[KCrash Handler]
#6  d_func (sender=0x320033005f006b, m=<value optimized out>, local_signal_index=0, argv=0x7fffcb34e060) at kernel/qobject.h:125
#7  QMetaObject::activate (sender=0x320033005f006b, m=<value optimized out>, local_signal_index=0, argv=0x7fffcb34e060) at kernel/qobject.cpp:3195
#8  0x0000003f95a20c6f in KCModuleProxy::changed (this=<value optimized out>, _t1=false) at /usr/src/debug/kdelibs-4.5.2/x86_64-redhat-linux-gnu/kutils/kcmoduleproxy.moc:107
#9  0x0000003f95a20cdb in KCModuleProxyPrivate::_k_moduleChanged (this=<value optimized out>, c=<value optimized out>) at /usr/src/debug/kdelibs-4.5.2/kutils/kcmoduleproxy.cpp:233
#10 0x0000003f8dc0eea3 in ModuleView::moduleSave(KCModuleProxy*) () from /usr/lib64/libsystemsettingsview.so.2
#11 0x0000003f8dc11458 in ModuleView::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libsystemsettingsview.so.2
#12 0x0000003f8617002f in QMetaObject::activate (sender=0xa82c50, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fffcb34e1c0) at kernel/qobject.cpp:3272
#13 0x0000003f8b4fbeff in KPushButton::authorized (this=<value optimized out>, _t1=0xf87420) at /usr/src/debug/kdelibs-4.5.2/x86_64-redhat-linux-gnu/kdeui/kpushbutton.moc:129
#14 0x0000003f8b4fc059 in KPushButton::qt_metacall (this=0xa82c50, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0x7fffcb34e2e0) at /usr/src/debug/kdelibs-4.5.2/x86_64-redhat-linux-gnu/kdeui/kpushbutton.moc:88
#15 0x0000003f8617002f in QMetaObject::activate (sender=0xa82c50, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fffcb34e2e0) at kernel/qobject.cpp:3272
#16 0x0000003f8981f992 in QAbstractButton::clicked (this=<value optimized out>, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:206
#17 0x0000003f8956756b in QAbstractButtonPrivate::emitClicked (this=<value optimized out>) at widgets/qabstractbutton.cpp:546
#18 0x0000003f89568b3b in QAbstractButtonPrivate::click (this=0xb922e0) at widgets/qabstractbutton.cpp:539
#19 0x0000003f89568dac in QAbstractButton::mouseReleaseEvent (this=0xa82c50, e=0x7fffcb34ec60) at widgets/qabstractbutton.cpp:1121
#20 0x0000003f89206228 in QWidget::event (this=0xa82c50, event=0x7fffcb34ec60) at kernel/qwidget.cpp:8187
#21 0x0000003f891b4b64 in QApplicationPrivate::notify_helper (this=0x897890, receiver=0xa82c50, e=0x7fffcb34ec60) at kernel/qapplication.cpp:4396
#22 0x0000003f891b9e5a in QApplication::notify (this=<value optimized out>, receiver=0xa82c50, e=0x7fffcb34ec60) at kernel/qapplication.cpp:3959
#23 0x0000003f8b420416 in KApplication::notify (this=0x7fffcb34f970, receiver=0xa82c50, event=0x7fffcb34ec60) at /usr/src/debug/kdelibs-4.5.2/kdeui/kernel/kapplication.cpp:310
#24 0x0000003f8615b7ac in QCoreApplication::notifyInternal (this=0x7fffcb34f970, receiver=0xa82c50, event=0x7fffcb34ec60) at kernel/qcoreapplication.cpp:732
#25 0x0000003f891b5b65 in sendEvent (receiver=0xa82c50, event=0x7fffcb34ec60, alienWidget=0xa82c50, nativeWidget=0x8ed4e0, buttonDown=0x3f89c82658, lastMouseReceiver=..., spontaneous=true) at ../../src/corelib/kernel/qcoreapplication.h:215
#26 QApplicationPrivate::sendMouseEvent (receiver=0xa82c50, event=0x7fffcb34ec60, alienWidget=0xa82c50, nativeWidget=0x8ed4e0, buttonDown=0x3f89c82658, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3058
#27 0x0000003f89232d68 in QETWidget::translateMouseEvent (this=0x8ed4e0, event=<value optimized out>) at kernel/qapplication_x11.cpp:4403
#28 0x0000003f892314b9 in QApplication::x11ProcessEvent (this=0x7fffcb34f970, event=0x7fffcb34f5b0) at kernel/qapplication_x11.cpp:3536
#29 0x0000003f89258a52 in x11EventSourceDispatch (s=0x89b1c0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#30 0x0000003f7ec41e33 in g_main_dispatch (context=0x89a120) at gmain.c:2149
#31 g_main_context_dispatch (context=0x89a120) at gmain.c:2702
#32 0x0000003f7ec42610 in g_main_context_iterate (context=0x89a120, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2780
#33 0x0000003f7ec428ad in g_main_context_iteration (context=0x89a120, may_block=1) at gmain.c:2843
#34 0x0000003f861868af in QEventDispatcherGlib::processEvents (this=0x862ce0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#35 0x0000003f892586ee in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x0000003f8615ab42 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#37 0x0000003f8615ad8c in QEventLoop::exec (this=0x7fffcb34f8c0, flags=...) at kernel/qeventloop.cpp:201
#38 0x0000003f8615f20b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#39 0x00000000004116b9 in _start ()

Reported using DrKonqi