Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.96 (KDE 4.2.96 (KDE 4.3 RC2))
Qt Version: 4.5.2
Operating System: Linux 2.6.28-14-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
At connection wm5 devices plasma crash

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 5046)]

Thread 2 (Thread 0xa82a2b90 (LWP 5047)):
#0  0xb802c430 in __kernel_vsyscall ()
#1  0xb65470e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb67272ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7e27172 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#4  0xb7769ac2 in ?? () from /usr/lib/libQtNetwork.so.4
#5  0xb7e26132 in ?? () from /usr/lib/libQtCore.so.4
#6  0xb65434ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb671849e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb6051a10 (LWP 5046)):
[KCrash Handler]
#6  0xa86791ad in ?? () from /usr/lib/kde4/plasma_applet_networkmanagement.so
#7  0xa868b7dd in ?? () from /usr/lib/kde4/plasma_applet_networkmanagement.so
#8  0xa8676bfb in ?? () from /usr/lib/kde4/plasma_applet_networkmanagement.so
#9  0xb7f301b8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#10 0xb7f30e42 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#11 0xa86759d7 in ?? () from /usr/lib/kde4/plasma_applet_networkmanagement.so
#12 0xa867aa2d in ?? () from /usr/lib/kde4/plasma_applet_networkmanagement.so
#13 0xa8676ac4 in ?? () from /usr/lib/kde4/plasma_applet_networkmanagement.so
#14 0xa8676bba in ?? () from /usr/lib/kde4/plasma_applet_networkmanagement.so
#15 0xb7f301b8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#16 0xb7f30e42 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#17 0xa8645a63 in NetworkManagerSettings::disappeared () from /usr/lib/libknmdbus.so.4
#18 0xa8646ab4 in NetworkManagerSettings::serviceOwnerChanged () from /usr/lib/libknmdbus.so.4
#19 0xa8647863 in NetworkManagerSettings::qt_metacall () from /usr/lib/libknmdbus.so.4
#20 0xb7f301b8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#21 0xb7f30e42 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#22 0xb7311e5f in QDBusConnectionInterface::serviceOwnerChanged () from /usr/lib/libQtDBus.so.4
#23 0xb73123eb in QDBusConnectionInterface::qt_metacall () from /usr/lib/libQtDBus.so.4
#24 0xb7f301b8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#25 0xb7f30e42 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#26 0xb7311d0f in QDBusConnectionInterface::NameOwnerChanged () from /usr/lib/libQtDBus.so.4
#27 0xb731235b in QDBusConnectionInterface::qt_metacall () from /usr/lib/libQtDBus.so.4
#28 0xb72d7e5a in ?? () from /usr/lib/libQtDBus.so.4
#29 0xb72dfeb7 in ?? () from /usr/lib/libQtDBus.so.4
#30 0xb7f2b3b0 in QObject::event () from /usr/lib/libQtCore.so.4
#31 0xb69ddd3c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#32 0xb69e603e in QApplication::notify () from /usr/lib/libQtGui.so.4
#33 0xb74ee4dd in KApplication::notify () from /usr/lib/libkdeui.so.5
#34 0xb7f1abcb in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#35 0xb7f1b825 in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4
#36 0xb7f1ba1d in QCoreApplication::sendPostedEvents () from /usr/lib/libQtCore.so.4
#37 0xb7f466af in ?? () from /usr/lib/libQtCore.so.4
#38 0xb6590b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#39 0xb65940eb in ?? () from /usr/lib/libglib-2.0.so.0
#40 0xb6594268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#41 0xb7f462f8 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#42 0xb6a7fa75 in ?? () from /usr/lib/libQtGui.so.4
#43 0xb7f191fa in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#44 0xb7f19642 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#45 0xb7f1bae9 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#46 0xb69ddbb7 in QApplication::exec () from /usr/lib/libQtGui.so.4
#47 0xb3dcf5d0 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#48 0x0804e27d in _start ()

Reported using DrKonqi