Application that crashed: kcmshell4
Version of the application: 
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.3
Operating System: Linux 2.6.31-ARCH x86_64

What I was doing when the application crashed:
This appears very likely to be a duplicate of bug 210896 and several others. This bug report is from using Alt-f2 and typing in language, as when opening from the system settings window, the crash assistant reported that the trace wasn't useful. 

 -- Backtrace:
Application: KDE Control Module (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#5  0x00007ffba74765ac in QMutex::lock() () from /usr/lib/libQtCore.so.4
#6  0x00007ffba6f10670 in KLocalePrivate::translate_priv(char const*, char const*, char const*, unsigned long, QString*, QString*) const () from /usr/lib/libkdecore.so.5
#7  0x00007ffba6f1129e in KLocale::translateRaw(char const*, QString*, QString*) const () from /usr/lib/libkdecore.so.5
#8  0x00007ffba6f2069c in KLocalizedStringPrivate::toString(KLocale const*) const () from /usr/lib/libkdecore.so.5
#9  0x00007ffba6f2165c in KLocalizedString::toString(KLocale const*) const () from /usr/lib/libkdecore.so.5
#10 0x00007ffba6e3500e in KCalendarSystemGregorian::weekDayName(int, KCalendarSystem::WeekDayNameFormat) const () from /usr/lib/libkdecore.so.5
#11 0x00007ffba6e338e4 in KCalendarSystem::weekDayName(QDate const&, KCalendarSystem::WeekDayNameFormat) const () from /usr/lib/libkdecore.so.5
#12 0x00007ffba6e34f39 in KCalendarSystemGregorian::weekDayName(QDate const&, KCalendarSystem::WeekDayNameFormat) const () from /usr/lib/libkdecore.so.5
#13 0x00007ffba6f17c82 in KLocale::formatDate(QDate const&, KLocale::DateFormat) const () from /usr/lib/libkdecore.so.5
#14 0x00007ffb99b4ea2f in KLocaleSample::slotUpdateTime() () from /usr/lib/kde4/kcm_locale.so
#15 0x00007ffb99b4f111 in KLocaleSample::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/kde4/kcm_locale.so
#16 0x00007ffba757542c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#17 0x00007ffba756f3d3 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#18 0x00007ffba52f960c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#19 0x00007ffba53008de in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#20 0x00007ffba5f2d5a6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#21 0x00007ffba75602ec in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#22 0x00007ffba758b912 in ?? () from /usr/lib/libQtCore.so.4
#23 0x00007ffba75888bd in ?? () from /usr/lib/libQtCore.so.4
#24 0x00007ffba424d1fe in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#25 0x00007ffba4250bb8 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#26 0x00007ffba4250ce0 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#27 0x00007ffba7588806 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#28 0x00007ffba538c6de in ?? () from /usr/lib/libQtGui.so.4
#29 0x00007ffba755ec22 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#30 0x00007ffba755eff4 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#31 0x00007ffba5770e8e in QDialog::exec() () from /usr/lib/libQtGui.so.4
#32 0x00007ffb9bf68f98 in kdemain () from /usr/lib/libkdeinit4_kcmshell4.so
#33 0x0000000000406eae in _start ()

This bug may be a duplicate of or related to bug 210896

Reported using DrKonqi