Application that crashed: kcmshell4
Version of the application: 
KDE Version: 4.3.5 (KDE 4.3.5)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-21-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
When attempting to delete the history from konqeror, the bug tracking system cut in.

 -- Backtrace:
Application: KDE Control Module (kcmshell4), signal: Segmentation fault
[KCrash Handler]
#6  QMetaObject::activate (sender=0x89, m=0x65aeca0, local_signal_index=3, argv=0x0) at kernel/qobject.cpp:3183
#7  0x065a6b17 in KonqHistoryProviderPrivate::notifyClear (this=0x89) at ./konq_historyprovider.moc:136
#8  0x01a9b4d5 in HistorySidebarConfig::slotClearHistory (this=0x9cbc4e8) at ../../../../../../apps/konqueror/sidebar/trees/history_module/kcmhistory.cpp:258
#9  0x01a9b913 in HistorySidebarConfig::qt_metacall (this=0x9cbc4e8, _c=QMetaObject::InvokeMetaMethod, _id=40, _a=0xbfceb3a8) at ./kcmhistory.moc:81
#10 0x00a2e263 in QMetaObject::activate (sender=0x9dd47c0, from_signal_index=29, to_signal_index=30, argv=0xbfceb3a8) at kernel/qobject.cpp:3113
#11 0x00a2e6d8 in QMetaObject::activate (sender=0x9dd47c0, m=0x18d60a4, from_local_signal_index=2, to_local_signal_index=3, argv=0xbfceb3a8) at kernel/qobject.cpp:3207
#12 0x016efcc1 in QAbstractButton::clicked (this=0x9dd47c0, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:200
#13 0x01418549 in QAbstractButtonPrivate::emitClicked (this=0x9dd47d8) at widgets/qabstractbutton.cpp:543
#14 0x0141a1a4 in QAbstractButtonPrivate::click (this=0x9dd47d8) at widgets/qabstractbutton.cpp:536
#15 0x0141a431 in QAbstractButton::mouseReleaseEvent (this=0x9dd47c0, e=0xbfceb9a0) at widgets/qabstractbutton.cpp:1115
#16 0x010b8012 in QWidget::event (this=0x9dd47c0, event=0xbfceb9a0) at kernel/qwidget.cpp:7549
#17 0x014183ee in QAbstractButton::event (this=0x9dd47c0, e=0x0) at widgets/qabstractbutton.cpp:1077
#18 0x014c266d in QPushButton::event (this=0x9dd47c0, e=0xbfceb9a0) at widgets/qpushbutton.cpp:662
#19 0x01062f54 in QApplicationPrivate::notify_helper (this=0x9b8d018, receiver=0x9dd47c0, e=0xbfceb9a0) at kernel/qapplication.cpp:4056
#20 0x0106b033 in QApplication::notify (this=0xbfced3a4, receiver=0x9dd47c0, e=0xbfceb9a0) at kernel/qapplication.cpp:3758
#21 0x0048f25a in KApplication::notify (this=0xbfced3a4, receiver=0x9dd47c0, event=0xbfceb9a0) at ../../kdeui/kernel/kapplication.cpp:302
#22 0x00a186cb in QCoreApplication::notifyInternal (this=0xbfced3a4, receiver=0x9dd47c0, event=0xbfceb9a0) at kernel/qcoreapplication.cpp:610
#23 0x01069f6e in QCoreApplication::sendSpontaneousEvent (receiver=0x9dd47c0, event=0xbfceb9a0, alienWidget=0x9dd47c0, nativeWidget=0x9c700e8, buttonDown=0x18ddaa0, lastMouseReceiver=...)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#24 QApplicationPrivate::sendMouseEvent (receiver=0x9dd47c0, event=0xbfceb9a0, alienWidget=0x9dd47c0, nativeWidget=0x9c700e8, buttonDown=0x18ddaa0, lastMouseReceiver=...)
    at kernel/qapplication.cpp:2924
#25 0x010d87c0 in QETWidget::translateMouseEvent (this=0x9c700e8, event=0xbfcecfec) at kernel/qapplication_x11.cpp:4409
#26 0x010d7c4b in QApplication::x11ProcessEvent (this=0xbfced3a4, event=0xbfcecfec) at kernel/qapplication_x11.cpp:3428
#27 0x01104502 in x11EventSourceDispatch (s=0x9b90200, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#28 0x04258e88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#29 0x0425c730 in ?? () from /lib/libglib-2.0.so.0
#30 0x0425c863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#31 0x00a4302c in QEventDispatcherGlib::processEvents (this=0x9b77a30, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#32 0x01103be5 in QGuiEventDispatcherGlib::processEvents (this=0x9b77a30, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#33 0x00a16c79 in QEventLoop::processEvents (this=0xbfced2e0, flags=) at kernel/qeventloop.cpp:149
#34 0x00a170ca in QEventLoop::exec (this=0xbfced2e0, flags=...) at kernel/qeventloop.cpp:201
#35 0x0154fd53 in QDialog::exec (this=0x9c700e8) at dialogs/qdialog.cpp:498
#36 0x0018ff8e in kdemain (_argc=2, _argv=0xbfced614) at ../../kcmshell/main.cpp:267
#37 0x0804865b in main (argc=2, argv=0xbfced614) at kcmshell4_dummy.cpp:3

Reported using DrKonqi