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 2.6.31-4.slh.1-sidux-amd64 x86_64

 -- Backtrace:
Application: KDE Control Module (kcmshell4), signal: Segmentation fault
The current source language is "auto; currently c".
[KCrash Handler]
#5  QMetaObject::activate (sender=0x51, m=<value optimized out>, local_signal_index=3, argv=0x0) at kernel/qobject.cpp:3182
#6  0x00007f10b0114fdd in HistorySidebarConfig::slotClearHistory (this=0x17e9380) at ../../../../../../apps/konqueror/sidebar/trees/history_module/kcmhistory.cpp:258
#7  0x00007f10b0115458 in HistorySidebarConfig::qt_metacall (this=0x17e9380, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff1c774d60) at ./kcmhistory.moc:81
#8  0x00007f10ba495df2 in QMetaObject::activate (sender=0x1868230, from_signal_index=<value optimized out>, to_signal_index=30, argv=0x4) at kernel/qobject.cpp:3112
#9  0x00007f10b9f0c037 in QAbstractButton::clicked (this=0x7f10b010be80, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:200
#10 0x00007f10b9c6b30b in QAbstractButtonPrivate::emitClicked (this=0x1871350) at widgets/qabstractbutton.cpp:543
#11 0x00007f10b9c6cf1b in QAbstractButtonPrivate::click (this=0x1871350) at widgets/qabstractbutton.cpp:536
#12 0x00007f10b9c6d175 in QAbstractButton::mouseReleaseEvent (this=0x1868230, e=0x7fff1c7756b0) at widgets/qabstractbutton.cpp:1115
#13 0x00007f10b994a37f in QWidget::event (this=0x1868230, event=0x7fff1c7756b0) at kernel/qwidget.cpp:7554
#14 0x00007f10b98fa01d in QApplicationPrivate::notify_helper (this=0x154c1f0, receiver=0x1868230, e=0x7fff1c7756b0) at kernel/qapplication.cpp:4065
#15 0x00007f10b99027ca in QApplication::notify (this=<value optimized out>, receiver=0x1868230, e=0x7fff1c7756b0) at kernel/qapplication.cpp:3767
#16 0x00007f10bb0950db in KApplication::notify (this=0x7fff1c777630, receiver=0x1868230, event=0x7fff1c7756b0) at ../../kdeui/kernel/kapplication.cpp:302
#17 0x00007f10ba480c9c in QCoreApplication::notifyInternal (this=0x7fff1c777630, receiver=0x1868230, event=0x7fff1c7756b0) at kernel/qcoreapplication.cpp:610
#18 0x00007f10b9901a78 in QCoreApplication::sendSpontaneousEvent (receiver=0x1868230, event=0x7fff1c7756b0, alienWidget=0x1868230, nativeWidget=0x163ff90, buttonDown=<value optimized out>, 
    lastMouseReceiver=...) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#19 QApplicationPrivate::sendMouseEvent (receiver=0x1868230, event=0x7fff1c7756b0, alienWidget=0x1868230, nativeWidget=0x163ff90, buttonDown=<value optimized out>, lastMouseReceiver=...)
    at kernel/qapplication.cpp:2924
#20 0x00007f10b996a659 in QETWidget::translateMouseEvent (this=0x163ff90, event=<value optimized out>) at kernel/qapplication_x11.cpp:4411
#21 0x00007f10b996940f in QApplication::x11ProcessEvent (this=0x7fff1c777630, event=0x7fff1c777080) at kernel/qapplication_x11.cpp:3552
#22 0x00007f10b999176c in x11EventSourceDispatch (s=0x154ffd0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#23 0x00007f10b687112a in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#24 0x00007f10b6874988 in ?? () from /lib/libglib-2.0.so.0
#25 0x00007f10b6874b3c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#26 0x00007f10ba4a939c in QEventDispatcherGlib::processEvents (this=0x1533790, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:407
#27 0x00007f10b9990f1f in QGuiEventDispatcherGlib::processEvents (this=0x7f10b010be80, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#28 0x00007f10ba47f562 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#29 0x00007f10ba47f934 in QEventLoop::exec (this=0x7fff1c7773b0, flags=...) at kernel/qeventloop.cpp:201
#30 0x00007f10b9d82c7e in QDialog::exec (this=0x163ff90) at dialogs/qdialog.cpp:498
#31 0x00007f10bba3abbf in kdemain (_argc=2, _argv=0x7fff1c777d48) at ../../kcmshell/main.cpp:267
#32 0x00007f10bb7005c6 in __libc_start_main (main=0x400710 <main>, argc=2, ubp_av=0x7fff1c777d48, init=0x400740 <__libc_csu_init>, fini=<value optimized out>, rtld_fini=<value optimized out>, 
    stack_end=0x7fff1c777d38) at libc-start.c:222
#33 0x0000000000400649 in _start () at ../sysdeps/x86_64/elf/start.S:113

Reported using DrKonqi