Application that crashed: ksysguard
Version of the application: 4.3.4 (KDE 4.3.4)
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.3
Operating System: Linux 2.6.30.10-105.fc11.i586 i686

What I was doing when the application crashed:
Simply adding a sensor (Physical memory sensor) to worksheet and bam... the tool crashed.  This happened twice.

 -- Backtrace:
Application: System Monitor (ksysguard), signal: Segmentation fault
[KCrash Handler]
#6  0x04bbebf9 in QWidget::setUpdatesEnabled(bool) () from /usr/lib/libkdeinit4_ksysguard.so
#7  0x04ba1f60 in QWidget::setUpdatesEnabled(bool) () from /usr/lib/libkdeinit4_ksysguard.so
#8  0x04ba2fc6 in QWidget::setUpdatesEnabled(bool) () from /usr/lib/libkdeinit4_ksysguard.so
#9  0x04458dc3 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#10 0x04459a22 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#11 0x05ac0a27 in KDialog::applyClicked() () from /usr/lib/libkdeui.so.5
#12 0x05ac31a7 in KDialog::slotButtonClicked(int) () from /usr/lib/libkdeui.so.5
#13 0x05ac57ec in KDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkdeui.so.5
#14 0x05b8d6da in KPageDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkdeui.so.5
#15 0x04ba4c7a in QWidget::setUpdatesEnabled(bool) () from /usr/lib/libkdeinit4_ksysguard.so
#16 0x04458dc3 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#17 0x04459a22 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#18 0x0445b9b3 in QSignalMapper::mapped(int) () from /usr/lib/libQtCore.so.4
#19 0x0445c24d in QSignalMapper::map(QObject*) () from /usr/lib/libQtCore.so.4
#20 0x0445c42e in QSignalMapper::map() () from /usr/lib/libQtCore.so.4
#21 0x0445cc6b in QSignalMapper::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libQtCore.so.4
#22 0x04458dc3 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#23 0x04459238 in QMetaObject::activate(QObject*, QMetaObject const*, int, int, void**) () from /usr/lib/libQtCore.so.4
#24 0x054a3061 in QAbstractButton::clicked(bool) () from /usr/lib/libQtGui.so.4
#25 0x051cb989 in ?? () from /usr/lib/libQtGui.so.4
#26 0x051cd5c4 in ?? () from /usr/lib/libQtGui.so.4
#27 0x051cd861 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#28 0x04e6dafa in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#29 0x051cb82e in QAbstractButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#30 0x05275afd in QPushButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#31 0x04e188b4 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#32 0x04e209db in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#33 0x05b5c81a in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#34 0x044430ab in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#35 0x04e1f91e in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib/libQtGui.so.4
#36 0x04e8dff0 in ?? () from /usr/lib/libQtGui.so.4
#37 0x04e8d483 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#38 0x04eb8562 in ?? () from /usr/lib/libQtGui.so.4
#39 0x00145308 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#40 0x001489e0 in ?? () from /lib/libglib-2.0.so.0
#41 0x00148b13 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#42 0x0446db7c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#43 0x04eb7c45 in ?? () from /usr/lib/libQtGui.so.4
#44 0x04441639 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#45 0x04441a8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#46 0x04443f0f in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#47 0x04e18737 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#48 0x04be1217 in kdemain () from /usr/lib/libkdeinit4_ksysguard.so
#49 0x0804868b in _start ()

Reported using DrKonqi