Application that crashed: kcmshell4
Version of the application: 
KDE Version: 4.2.93 (KDE 4.2.93 (KDE 4.3 >= 20090623)) "release 1"
Qt Version: 4.5.1
Operating System: Linux 2.6.30-8-default x86_64

What I was doing when the application crashed:
added action to khotkeys and reconsidered
deleted action
mouse clicked 'ok'
khotkeys crashed

 -- Backtrace:
Application: KDE Control Module (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#5  0x00007f1ba824d3a8 in QKeySequence::operator=(QKeySequence const&) () from /usr/lib64/libQtGui.so.4
#6  0x00007f1ba934ddd7 in KShortcut::KShortcut(KShortcut const&) () from /usr/lib64/libkdeui.so.5
#7  0x00007f1b998a18fc in KHotKeys::ShortcutTrigger::shortcut() const () from /usr/lib64/libkhotkeysprivate.so.4
#8  0x00007f1b99aee909 in ?? () from /usr/lib64/kde4/kcm_hotkeys.so
#9  0x00007f1b99af8b56 in ?? () from /usr/lib64/kde4/kcm_hotkeys.so
#10 0x00007f1b99add441 in ?? () from /usr/lib64/kde4/kcm_hotkeys.so
#11 0x00007f1b99ade204 in ?? () from /usr/lib64/kde4/kcm_hotkeys.so
#12 0x00007f1b99ade8ed in ?? () from /usr/lib64/kde4/kcm_hotkeys.so
#13 0x00007f1b9f36b547 in KCModuleProxy::save() () from /usr/lib64/libkutils.so.4
#14 0x00007f1b9f366318 in ?? () from /usr/lib64/libkutils.so.4
#15 0x00007f1b9f36870c in KCMultiDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkutils.so.4
#16 0x00007f1b9f5d73b0 in ?? () from /usr/lib64/libkdeinit4_kcmshell4.so
#17 0x00007f1baae9337c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#18 0x00007f1ba9284ffa in KDialog::slotButtonClicked(int) () from /usr/lib64/libkdeui.so.5
#19 0x00007f1ba9287309 in KDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkdeui.so.5
#20 0x00007f1ba933ae10 in KPageDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkdeui.so.5
#21 0x00007f1b9f368620 in KCMultiDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkutils.so.4
#22 0x00007f1b9f5d73b0 in ?? () from /usr/lib64/libkdeinit4_kcmshell4.so
#23 0x00007f1baae9337c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#24 0x00007f1baae95eae in QSignalMapper::mapped(int) () from /usr/lib64/libQtCore.so.4
#25 0x00007f1baae970a0 in QSignalMapper::map(QObject*) () from /usr/lib64/libQtCore.so.4
#26 0x00007f1baae97310 in QSignalMapper::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libQtCore.so.4
#27 0x00007f1baae9337c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#28 0x00007f1ba8836207 in QAbstractButton::clicked(bool) () from /usr/lib64/libQtGui.so.4
#29 0x00007f1ba859bb9b in ?? () from /usr/lib64/libQtGui.so.4
#30 0x00007f1ba859d7ab in ?? () from /usr/lib64/libQtGui.so.4
#31 0x00007f1ba859d9f5 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib64/libQtGui.so.4
#32 0x00007f1ba8276a20 in QWidget::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#33 0x00007f1ba8227f9c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#34 0x00007f1ba822f431 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#35 0x00007f1ba9310346 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#36 0x00007f1baae7de3c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#37 0x00007f1ba822ed00 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib64/libQtGui.so.4
#38 0x00007f1ba82948be in ?? () from /usr/lib64/libQtGui.so.4
#39 0x00007f1ba829395a in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib64/libQtGui.so.4
#40 0x00007f1ba82bb59c in ?? () from /usr/lib64/libQtGui.so.4
#41 0x00007f1ba6d06c0e in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#42 0x00007f1ba6d0a2e8 in ?? () from /usr/lib64/libglib-2.0.so.0
#43 0x00007f1ba6d0a410 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#44 0x00007f1baaea6786 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#45 0x00007f1ba82bad4e in ?? () from /usr/lib64/libQtGui.so.4
#46 0x00007f1baae7c742 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#47 0x00007f1baae7cb14 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#48 0x00007f1ba86b34ce in QDialog::exec() () from /usr/lib64/libQtGui.so.4
#49 0x00007f1b9f5d9f9d in kdemain () from /usr/lib64/libkdeinit4_kcmshell4.so
#50 0x0000000000406d94 in _start ()

Reported using DrKonqi