Version:            (using KDE 4.4.1)
OS:                Linux
Installed from:    Fedora RPMs

I right-clicked on the digital clock in my plasma panel, and choose "Adjust Date and Time" from the context menu, when this crash happend.
Next time I tried, everything worked fine again.

Application: KDE Control Module (kcmshell4), signal: Segmentation fault
[KCrash Handler]
#6  0x04019cf5 in replaceArgEscapes (s=<value optimized out>, d=..., field_width=0, arg=..., larg=..., fillChar=...) at tools/qstring.cpp:6185
#7  0x0401bc8e in QString::arg (this=0xbfd5108c, a=..., fieldWidth=0, fillChar=...) at tools/qstring.cpp:6303
#8  0x0463e65a in KLocalizedString::subs (this=0xbfd510f4, a=..., fieldWidth=0, fillChar=...) at /usr/src/debug/kdelibs-4.4.1/kdecore/localization/klocalizedstring.cpp:916
#9  0x03bf43ce in i18n<QString> (this=0x0, code=4) at /usr/include/kde4/klocalizedstring.h:613
#10 Dtime::processHelperErrors (this=0x0, code=4) at /usr/src/debug/kdebase-workspace-4.4.1/kcontrol/dateandtime/dtime.cpp:267
#11 0x03bf8927 in KclockModule::save (this=0x9ad29b8) at /usr/src/debug/kdebase-workspace-4.4.1/kcontrol/dateandtime/main.cpp:99
#12 0x05ee3fba in KCModuleProxy::save (this=0x999bd48) at /usr/src/debug/kdelibs-4.4.1/kutils/kcmoduleproxy.cpp:279
#13 0x05edf8e8 in KCMultiDialogPrivate::apply (this=0x9a96a28) at /usr/src/debug/kdelibs-4.4.1/kutils/kcmultidialog.cpp:250
#14 0x05ee2043 in KCMultiDialog::qt_metacall (this=0x9a96968, _c=InvokeMetaMethod, _id=<value optimized out>, _a=0xbfd513e8)
    at /usr/src/debug/kdelibs-4.4.1/i686-redhat-linux-gnu/kutils/kcmultidialog.moc:95
#15 0x0598dceb in ?? () from /usr/lib/libkdeinit4_kcmshell4.so
#16 0x040cc5db in QMetaObject::metacall (object=0x9a96968, cl=InvokeMetaMethod, idx=79, argv=0xbfd513e8) at kernel/qmetaobject.cpp:237
#17 0x040db4af in QMetaObject::activate (sender=0x9a9d810, m=0x554ba8c, local_signal_index=0, argv=0xbfd513e8) at kernel/qobject.cpp:3293
#18 0x0542ef14 in KPushButton::authorized (this=0x9a9d810, _t1=0x9c007d8) at /usr/src/debug/kdelibs-4.4.1/i686-redhat-linux-gnu/kdeui/kpushbutton.moc:129
#19 0x0542f536 in KPushButton::KPushButtonPrivate::slotClickedInternal (this=0x9a96e78) at /usr/src/debug/kdelibs-4.4.1/kdeui/widgets/kpushbutton.cpp:102
#20 0x05430126 in KPushButton::qt_metacall (this=0x9a9d810, _c=InvokeMetaMethod, _id=3, _a=0xbfd51538) at /usr/src/debug/kdelibs-4.4.1/i686-redhat-linux-gnu/kdeui/kpushbutton.moc:88
#21 0x040cc5db in QMetaObject::metacall (object=0x9a9d810, cl=InvokeMetaMethod, idx=44, argv=0xbfd51538) at kernel/qmetaobject.cpp:237
#22 0x040db4af in QMetaObject::activate (sender=0x9a9d810, m=0x515f9a4, local_signal_index=2, argv=0xbfd51538) at kernel/qobject.cpp:3293
#23 0x04f2c76a in QAbstractButton::clicked (this=0x9a9d810, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:206
#24 0x04c406ba in QAbstractButtonPrivate::emitClicked (this=0x9abce58) at widgets/qabstractbutton.cpp:546
#25 0x04c418f5 in QAbstractButtonPrivate::click (this=0x9abce58) at widgets/qabstractbutton.cpp:539
#26 0x04c41bbe in QAbstractButton::mouseReleaseEvent (this=0x9a9d810, e=0xbfd51c80) at widgets/qabstractbutton.cpp:1121
#27 0x048bbb2d in QWidget::event (this=0x9a9d810, event=0xbfd51c80) at kernel/qwidget.cpp:7998
#28 0x04c4055f in QAbstractButton::event (this=0x9a9d810, e=0xbfd51c80) at widgets/qabstractbutton.cpp:1080
#29 0x04cddfc3 in QPushButton::event (this=0x9a9d810, e=0xbfd51c80) at widgets/qpushbutton.cpp:679
#30 0x04868d2c in QApplicationPrivate::notify_helper (this=0x998d6f8, receiver=0x9a9d810, e=0xbfd51c80) at kernel/qapplication.cpp:4300
#31 0x048700fe in QApplication::notify (this=0xbfd52564, receiver=0x9a9d810, e=0xbfd51c80) at kernel/qapplication.cpp:3865
#32 0x0533f7db in KApplication::notify (this=0xbfd52564, receiver=0x9a9d810, event=0xbfd51c80) at /usr/src/debug/kdelibs-4.4.1/kdeui/kernel/kapplication.cpp:302
#33 0x040c7c03 in QCoreApplication::notifyInternal (this=0xbfd52564, receiver=0x9a9d810, event=0xbfd51c80) at kernel/qcoreapplication.cpp:704
#34 0x0486ee68 in sendEvent (receiver=0x9a9d810, event=0xbfd51c80, alienWidget=0x9a9d810, nativeWidget=0x9a96968, buttonDown=0x5168138, lastMouseReceiver=..., spontaneous=true)
    at ../../src/corelib/kernel/qcoreapplication.h:215
#35 QApplicationPrivate::sendMouseEvent (receiver=0x9a9d810, event=0xbfd51c80, alienWidget=0x9a9d810, nativeWidget=0x9a96968, buttonDown=0x5168138, lastMouseReceiver=..., spontaneous=true)
    at kernel/qapplication.cpp:2965
#36 0x048ec0d0 in QETWidget::translateMouseEvent (this=0x9a96968, event=0xbfd5219c) at kernel/qapplication_x11.cpp:4373
#37 0x048eb5e3 in QApplication::x11ProcessEvent (this=0xbfd52564, event=0xbfd5219c) at kernel/qapplication_x11.cpp:3384
#38 0x049174fa in x11EventSourceDispatch (s=0x99908e8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#39 0x00157fb8 in g_main_dispatch (context=0x998f310) at gmain.c:1960
#40 IA__g_main_context_dispatch (context=0x998f310) at gmain.c:2513
#41 0x0015b8e8 in g_main_context_iterate (context=0xdb7eb0, block=1, dispatch=1, self=0x998d188) at gmain.c:2591
#42 0x0015ba14 in IA__g_main_context_iteration (context=0x998f310, may_block=1) at gmain.c:2654
#43 0x040efe46 in QEventDispatcherGlib::processEvents (this=0x9979330, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#44 0x049170e6 in QGuiEventDispatcherGlib::processEvents (this=0x9979330, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#45 0x040c62da in QEventLoop::processEvents (this=0xbfd52490, flags=...) at kernel/qeventloop.cpp:149
#46 0x040c661a in QEventLoop::exec (this=0xbfd52490, flags=...) at kernel/qeventloop.cpp:201
#47 0x04d5b604 in QDialog::exec (this=0x9a96968) at dialogs/qdialog.cpp:546
#48 0x059904e6 in kdemain () from /usr/lib/libkdeinit4_kcmshell4.so
#49 0x0804860c in _start ()