Application that crashed: knetworkmanager
Version of the application: v0.9
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-22-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
i was connected via wifi (WPA2) when the connection failed and if i tried to reconnect it would ask me the wifi password over and over again until it crashed and the icon in the system try disappeared.
program: KNetworkManager
laptop: HP pavillion tx2130el
hope this can help.

 -- Backtrace:
Application: KNetworkManager (knetworkmanager), signal: Segmentation fault
[KCrash Handler]
#5  0x00007fe1b2495a99 in WirelessSecuritySettingWidget::writeConfig() () from /usr/lib/libknmui.so.4
#6  0x00007fe1b24ac7d2 in ConnectionSecretsJob::dialogAccepted() () from /usr/lib/libknmui.so.4
#7  0x00007fe1b247bec4 in ConnectionSecretsJob::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libknmui.so.4
#8  0x00007fe1b5539ddc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#9  0x00007fe1b72e84a8 in KDialog::slotButtonClicked(int) () from /usr/lib/libkdeui.so.5
#10 0x00007fe1b72ea6b9 in KDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkdeui.so.5
#11 0x00007fe1b5539ddc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#12 0x00007fe1b553c90e in QSignalMapper::mapped(int) () from /usr/lib/libQtCore.so.4
#13 0x00007fe1b553db00 in QSignalMapper::map(QObject*) () from /usr/lib/libQtCore.so.4
#14 0x00007fe1b553dd70 in QSignalMapper::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libQtCore.so.4
#15 0x00007fe1b5539ddc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#16 0x00007fe1b622a8e7 in QAbstractButton::clicked(bool) () from /usr/lib/libQtGui.so.4
#17 0x00007fe1b5f8c41b in ?? () from /usr/lib/libQtGui.so.4
#18 0x00007fe1b5f8e02b in ?? () from /usr/lib/libQtGui.so.4
#19 0x00007fe1b5f8e275 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#20 0x00007fe1b5c779c0 in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#21 0x00007fe1b5c28efc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#22 0x00007fe1b5c30011 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#23 0x00007fe1b7373ab6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#24 0x00007fe1b5524c2c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#25 0x00007fe1b5c2f8e0 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib/libQtGui.so.4
#26 0x00007fe1b5c95a0e in ?? () from /usr/lib/libQtGui.so.4
#27 0x00007fe1b5c94aa9 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#28 0x00007fe1b5cbdd0c in ?? () from /usr/lib/libQtGui.so.4
#29 0x00007fe1b14a4bce in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#30 0x00007fe1b14a8598 in ?? () from /lib/libglib-2.0.so.0
#31 0x00007fe1b14a86c0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#32 0x00007fe1b554d1a6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#33 0x00007fe1b5cbd4be in ?? () from /usr/lib/libQtGui.so.4
#34 0x00007fe1b5523532 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#35 0x00007fe1b5523904 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#36 0x00007fe1b5525ab9 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#37 0x000000000040d12f in _start ()

Reported using DrKonqi