Application: systemsettings (1.0)
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.2
Operating System: Linux 3.3.8-desktop586-2.mga2 i686
Distribution: "Mageia 2"

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

i just valid kchildlock new parameters...
kchildlock was used in root

-- Backtrace:
Application: Configuration du système (systemsettings), signal: Aborted
Using host libthread_db library "/lib/i686/libthread_db.so.1".
[KCrash Handler]
#7  0xffffe430 in __kernel_vsyscall ()
#8  0xb5f8ea7f in raise () from /lib/i686/libc.so.6
#9  0xb5f904a5 in abort () from /lib/i686/libc.so.6
#10 0xb5fc833a in __libc_message () from /lib/i686/libc.so.6
#11 0xb604dd35 in __fortify_fail () from /lib/i686/libc.so.6
#12 0xb604bc87 in __chk_fail () from /lib/i686/libc.so.6
#13 0xb604b2e5 in _IO_str_chk_overflow () from /lib/i686/libc.so.6
#14 0xb5fcc0e1 in _IO_default_xsputn_internal () from /lib/i686/libc.so.6
#15 0xb5fa2214 in vfprintf () from /lib/i686/libc.so.6
#16 0xb604b3bc in __vsprintf_chk () from /lib/i686/libc.so.6
#17 0xb604b2cf in __sprintf_chk () from /lib/i686/libc.so.6
#18 0xb25bbc12 in sprintf (__fmt=0xb25fcc32 "cp -f %s %s", __s=0xbf936838 "\220\250\327\t\230\246\327\t0_\330\th<\320\t\240Y\320\t\020") at /usr/include/bits/stdio2.h:35
#19 KchildlockKCM::save (this=0x94edcb8) at /usr/src/debug/kchildlock-0.90.4/kcmodule/KchildlockKCM.cpp:222
#20 0xb777439a in KCModuleProxy::save() () from /usr/lib/libkcmutils.so.4
#21 0xb774c2a1 in ModuleView::moduleSave(KCModuleProxy*) () from /usr/lib/libsystemsettingsview.so.2
#22 0xb774c645 in ModuleView::moduleSave() () from /usr/lib/libsystemsettingsview.so.2
#23 0xb774e1f0 in ?? () from /usr/lib/libsystemsettingsview.so.2
#24 0xb6357b6f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#25 0xb70aa5ed in QAbstractButton::clicked(bool) () from /usr/lib/libQtGui.so.4
#26 0xb6d9e25d in ?? () from /usr/lib/libQtGui.so.4
#27 0xb6d9f8bb in ?? () from /usr/lib/libQtGui.so.4
#28 0xb6d9fb76 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#29 0xb69cf087 in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#30 0xb6d9ee29 in QAbstractButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#31 0xb6e42db8 in QPushButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#32 0xb6974c14 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#33 0xb697a97c in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#34 0xb7454841 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#35 0xb63414ae in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#36 0xb6975bd0 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/libQtGui.so.4
#37 0xb69fea34 in ?? () from /usr/lib/libQtGui.so.4
#38 0xb69fd5fe in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#39 0xb6a2894c in ?? () from /usr/lib/libQtGui.so.4
#40 0xb5745c06 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#41 0xb5745fa5 in ?? () from /lib/libglib-2.0.so.0
#42 0xb5746081 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#43 0xb6373e27 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#44 0xb6a2854a in ?? () from /usr/lib/libQtGui.so.4
#45 0xb633fd2d in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#46 0xb633ffc9 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#47 0xb63454ba in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#48 0xb6972ab4 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#49 0x080504a8 in ?? ()
#50 0xb5f7b3e3 in __libc_start_main () from /lib/i686/libc.so.6
#51 0x080504ed in _start ()

Reported using DrKonqi