Application: kscreenlocker (2.0)
KDE Platform Version: 4.6.5 (4.6.5)
Qt Version: 4.7.2
Operating System: Linux 2.6.37.6 x86_64
Distribution: "Pardus 2011.1"

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

1. I locked KDE
2. I tried unlock my screen with face authenication
3. It didn' t authorize me
4. I got an Segmentation Fault Error

- Unusual behavior I noticed:

- Custom settings of the application:

The crash can be reproduced every time.

-- Backtrace:
Application: KDE Ekran Kilitleyici (kscreenlocker), signal: Segmentation fault
[KCrash Handler]
#6  testAttribute (this=0x0, reason=Qt::OtherFocusReason) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:1030
#7  isEnabled (this=0x0, reason=Qt::OtherFocusReason) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:935
#8  QWidget::setFocus (this=0x0, reason=Qt::OtherFocusReason) at kernel/qwidget.cpp:6303
#9  0x0000000000419432 in PasswordDlg::cantCheck (this=0x7ffff7ee1d90) at /var/pisi/kdebase-workspace-4.6.5-172/work/kdebase-workspace-4.6.5/krunner/lock/lockdlg.cc:434
#10 0x0000000000419748 in PasswordDlg::reapVerify (this=0x7ffff7ee1d90) at /var/pisi/kdebase-workspace-4.6.5-172/work/kdebase-workspace-4.6.5/krunner/lock/lockdlg.cc:351
#11 0x000000000041987e in PasswordDlg::handleVerify (this=0x7ffff7ee1d90) at /var/pisi/kdebase-workspace-4.6.5-172/work/kdebase-workspace-4.6.5/krunner/lock/lockdlg.cc:398
#12 0x000000000041b96c in PasswordDlg::qt_metacall (this=0x7ffff7ee1d90, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>)
    at /var/pisi/kdebase-workspace-4.6.5-172/work/kdebase-workspace-4.6.5/build/krunner/lock/lockdlg.moc:86
#13 0x00007f843dafe05f in QMetaObject::activate (sender=0x1809190, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7ffff7ee1310) at kernel/qobject.cpp:3287
#14 0x00007f843db46cee in QSocketNotifier::activated (this=<value optimized out>, _t1=20) at .moc/release-shared/moc_qsocketnotifier.cpp:89
#15 0x00007f843db046cb in QSocketNotifier::event (this=0x1809190, e=0x7ffff7ee19c0) at kernel/qsocketnotifier.cpp:317
#16 0x00007f843cc8f904 in QApplicationPrivate::notify_helper (this=0x1583620, receiver=0x1809190, e=0x7ffff7ee19c0) at kernel/qapplication.cpp:4462
#17 0x00007f843cc944ba in QApplication::notify (this=<value optimized out>, receiver=0x1809190, e=0x7ffff7ee19c0) at kernel/qapplication.cpp:4341
#18 0x00007f843f20a736 in KApplication::notify (this=0x7ffff7ee3290, receiver=0x1809190, event=0x7ffff7ee19c0) at /var/pisi/kdelibs-4.6.5-109/work/kdelibs-4.6.5/kdeui/kernel/kapplication.cpp:311
#19 0x00007f843dae957c in QCoreApplication::notifyInternal (this=0x7ffff7ee3290, receiver=0x1809190, event=0x7ffff7ee19c0) at kernel/qcoreapplication.cpp:731
#20 0x00007f843db142b9 in sendEvent (source=0x15861d0) at kernel/qcoreapplication.h:215
#21 socketNotifierSourceDispatch (source=0x15861d0) at kernel/qeventdispatcher_glib.cpp:110
#22 0x00007f8437327a23 in g_main_dispatch (context=0x15860e0) at gmain.c:2441
#23 g_main_context_dispatch (context=0x15860e0) at gmain.c:3014
#24 0x00007f8437328200 in g_main_context_iterate (context=0x15860e0, block=1, dispatch=1, self=<value optimized out>) at gmain.c:3092
#25 0x00007f843732849d in g_main_context_iteration (context=0x15860e0, may_block=1) at gmain.c:3155
#26 0x00007f843db148ff in QEventDispatcherGlib::processEvents (this=0x1566280, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#27 0x00007f843cd359de in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#28 0x00007f843dae8912 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#29 0x00007f843dae8b5c in QEventLoop::exec (this=0x7ffff7ee1c00, flags=...) at kernel/qeventloop.cpp:201
#30 0x00007f843d14a26e in QDialog::exec (this=0x7ffff7ee1d90) at dialogs/qdialog.cpp:552
#31 0x0000000000413a40 in LockProcess::execDialog (this=0x7ffff7ee30e0, dlg=0x7ffff7ee1d90) at /var/pisi/kdebase-workspace-4.6.5-172/work/kdebase-workspace-4.6.5/krunner/lock/lockprocess.cc:1290
#32 0x0000000000414fa0 in LockProcess::checkPass (this=0x7ffff7ee30e0) at /var/pisi/kdebase-workspace-4.6.5-172/work/kdebase-workspace-4.6.5/krunner/lock/lockprocess.cc:1178
#33 0x0000000000416b7a in LockProcess::x11Event (this=0x7ffff7ee30e0, event=0x7ffff7ee2d40) at /var/pisi/kdebase-workspace-4.6.5-172/work/kdebase-workspace-4.6.5/krunner/lock/lockprocess.cc:1387
#34 0x00007f843f20d43e in publicx11Event (this=<value optimized out>, _event=0x7ffff7ee2d40) at /var/pisi/kdelibs-4.6.5-109/work/kdelibs-4.6.5/kdeui/kernel/kapplication.cpp:918
#35 KApplication::x11EventFilter (this=<value optimized out>, _event=0x7ffff7ee2d40) at /var/pisi/kdelibs-4.6.5-109/work/kdelibs-4.6.5/kdeui/kernel/kapplication.cpp:969
#36 0x00007f843ccfef75 in qt_x11EventFilter (ev=0x7ffff7ee2d40) at kernel/qapplication_x11.cpp:435
#37 0x00007f843cd0d850 in QApplication::x11ProcessEvent (this=0x7ffff7ee3290, event=0x7ffff7ee2d40) at kernel/qapplication_x11.cpp:3299
#38 0x00007f843cd35cd6 in x11EventSourceDispatch (s=0x1586fc0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#39 0x00007f8437327a23 in g_main_dispatch (context=0x15860e0) at gmain.c:2441
#40 g_main_context_dispatch (context=0x15860e0) at gmain.c:3014
#41 0x00007f8437328200 in g_main_context_iterate (context=0x15860e0, block=1, dispatch=1, self=<value optimized out>) at gmain.c:3092
#42 0x00007f843732849d in g_main_context_iteration (context=0x15860e0, may_block=1) at gmain.c:3155
#43 0x00007f843db148ff in QEventDispatcherGlib::processEvents (this=0x1566280, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#44 0x00007f843cd359de in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#45 0x00007f843dae8912 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#46 0x00007f843dae8b5c in QEventLoop::exec (this=0x7ffff7ee3050, flags=...) at kernel/qeventloop.cpp:201
#47 0x00007f843daed1cb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#48 0x0000000000420e18 in main (argc=<value optimized out>, argv=0x7ffff7ee37e8) at /var/pisi/kdebase-workspace-4.6.5-172/work/kdebase-workspace-4.6.5/krunner/lock/main.cc:198

Reported using DrKonqi