Version:           0.8.1 (using KDE 4.3.1)
OS:                Linux
Installed from:    Ubuntu Packages

knetwork manager keeps crashing without the user doing something special (or anything at all) every minute or even more often.
a quick search on google gave me this thread at ubuntuforums:
   http://ubuntuforums.org/showthread.php?p=7884327

so it seems like it is connected to the wireless part of it.
i already sent i think 2 generated crash reports to wstephens.

so after some time i just disabled the wireless connections and the crashes stopped immediately.
interestingly after reenabling wireless it didn´t start crashing again.
since i was already in the process of reporting the bug i didn´t want to reboot to reproduce this behaviour (that it works after disabling and reenabling wireless).
i´ll do that when i´m done.

here the report the crashmanager created:

Application that crashed: knetworkmanager
Version of the application: v0.8
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-15-generic i686
Distribution: Ubuntu 9.04

-- Backtrace:
Application: KNetworkManager (knetworkmanager), signal: Segmentation fault
[KCrash Handler]
#6 0xb7a356c9 in Solid::Control::AccessPoint::ssid () from /usr/lib/libsolidcontrol.so.4
#7 0xb7ab7097 in ConnectionUsageMonitor::networkInterfaceAccessPointChanged () from /usr/lib/libknmservice.so.4
#8 0xb7aa54ed in ConnectionUsageMonitor::qt_metacall () from /usr/lib/libknmservice.so.4
#9 0xb6f931b8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#10 0xb6f93e42 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#11 0xb7a35a03 in Solid::Control::WirelessNetworkInterface::activeAccessPointChanged () from /usr/lib/libsolidcontrol.so.4
#12 0xb7a3711a in Solid::Control::WirelessNetworkInterface::qt_metacall () from /usr/lib/libsolidcontrol.so.4
#13 0xb6f931b8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#14 0xb6f93e42 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#15 0xb47b4443 in NMWirelessNetworkInterface::activeAccessPointChanged () from /usr/lib/kde4/solid_networkmanager07.so
#16 0xb47c396f in NMWirelessNetworkInterface::wirelessPropertiesChanged () from /usr/lib/kde4/solid_networkmanager07.so
#17 0xb47b4562 in NMWirelessNetworkInterface::qt_metacall () from /usr/lib/kde4/solid_networkmanager07.so
#18 0xb6f931b8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#19 0xb6f93e42 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#20 0xb47ca863 in ?? () from /usr/lib/kde4/solid_networkmanager07.so
#21 0xb47cabd2 in ?? () from /usr/lib/kde4/solid_networkmanager07.so
#22 0xb6a08e5a in ?? () from /usr/lib/libQtDBus.so.4
#23 0xb6a10eb7 in ?? () from /usr/lib/libQtDBus.so.4
#24 0xb6f8e3b0 in QObject::event () from /usr/lib/libQtCore.so.4
#25 0xb7194d3c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#26 0xb719d03e in QApplication::notify () from /usr/lib/libQtGui.so.4
#27 0xb7ccc85d in KApplication::notify () from /usr/lib/libkdeui.so.5
#28 0xb6f7dbcb in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#29 0xb6f7e825 in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4
#30 0xb6f7ea1d in QCoreApplication::sendPostedEvents () from /usr/lib/libQtCore.so.4
#31 0xb6fa96af in ?? () from /usr/lib/libQtCore.so.4
#32 0xb659db88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#33 0xb65a10eb in ?? () from /usr/lib/libglib-2.0.so.0
#34 0xb65a1268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#35 0xb6fa92f8 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#36 0xb7236a75 in ?? () from /usr/lib/libQtGui.so.4
#37 0xb6f7c1fa in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#38 0xb6f7c642 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#39 0xb6f7eae9 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#40 0xb7194bb7 in QApplication::exec () from /usr/lib/libQtGui.so.4
#41 0x08050a70 in _start ()