Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.95 (KDE 4.2.95 (KDE 4.3 RC1))
Qt Version: 4.5.1
Operating System: Linux 2.6.28-13-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
Since upgrading my Jaunty Jackalope laptop to KDE 4.3.0 RC1, NetworkManager does not connect to my Wifi network.  As a result, I usually stop NetworkManager after logging in (sometimes via the rc scripts, sometimes I just kill it) and run wpa_supplicant/dhclient manually.  This crash consistently happens when I stop NetworkManager.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 3921)]

Thread 2 (Thread 0x7fb333ade950 (LWP 4064)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007fb353676ce9 in QWaitCondition::wait (this=0x1293840, mutex=0x1293838, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007fb3525025dc in QHostInfoAgent::run (this=0x1293820) at kernel/qhostinfo.cpp:260
#3  0x00007fb353675d02 in QThreadPrivate::start (arg=0x1293820) at thread/qthread_unix.cpp:189
#4  0x00007fb34f5463ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007fb35012afcd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb353c3c750 (LWP 3921)):
[KCrash Handler]
#5  WirelessConnectionInspector::watchedNetworks (this=0x13d4d50) at /usr/include/qt4/QtCore/qatomic_x86_64.h:121
#6  0x00007fb335a4d9dc in InterfaceGroup::updateConnections (this=0x13767f0) at /build/buildd/plasma-widget-network-manager-0.0+svn966653/applet/interfacegroup.cpp:147
#7  0x00007fb335a3a700 in InterfaceGroup::qt_metacall (this=0x13767f0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff5bc71770)
    at /build/buildd/plasma-widget-network-manager-0.0+svn966653/obj-x86_64-linux-gnu/applet/moc_interfacegroup.cpp:91
#8  0x00007fb3537748d2 in QMetaObject::activate (sender=0x13767f0, from_signal_index=<value optimized out>, to_signal_index=5, argv=0x0) at kernel/qobject.cpp:3120
#9  0x00007fb335a3e1ee in ConnectionList::assessConnections (this=0x13767f0, service=0xfaac30) at /build/buildd/plasma-widget-network-manager-0.0+svn966653/applet/connectionlist.cpp:77
#10 0x00007fb335a3e78f in ConnectionList::reassess (this=0x7fff5bc71670) at /build/buildd/plasma-widget-network-manager-0.0+svn966653/applet/connectionlist.cpp:169
#11 0x00007fb335a4b118 in InterfaceGroup::interfaceRemoved (this=0x13767f0, uni=<value optimized out>) at /build/buildd/plasma-widget-network-manager-0.0+svn966653/applet/interfacegroup.cpp:407
#12 0x00007fb335a3a739 in InterfaceGroup::qt_metacall (this=0x13767f0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff5bc71a40)
    at /build/buildd/plasma-widget-network-manager-0.0+svn966653/obj-x86_64-linux-gnu/applet/moc_interfacegroup.cpp:88
#13 0x00007fb3537748d2 in QMetaObject::activate (sender=0xfbf7f0, from_signal_index=<value optimized out>, to_signal_index=6, argv=0x0) at kernel/qobject.cpp:3120
#14 0x00007fb337a89745 in Solid::Control::NetworkManager::Notifier::networkInterfaceRemoved (this=0x7fff5bc71670, _t1=<value optimized out>)
    at /build/buildd/kdebase-workspace-4.2.95/obj-x86_64-linux-gnu/libs/solid/control/networkmanager.moc:108
#15 0x00007fb337a89f9d in Solid::Control::NetworkManagerPrivate::qt_metacall (this=0xfbf7f0, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fff5bc71b60)
    at /build/buildd/kdebase-workspace-4.2.95/obj-x86_64-linux-gnu/libs/solid/control/networkmanager_p.moc:76
#16 0x00007fb3537748d2 in QMetaObject::activate (sender=0xf7ea90, from_signal_index=<value optimized out>, to_signal_index=14, argv=0x0) at kernel/qobject.cpp:3120
#17 0x00007fb3355f3905 in NMNetworkManager::networkInterfaceRemoved (this=0x7fff5bc71670, _t1=<value optimized out>)
    at /build/buildd/kdebase-workspace-4.2.95/obj-x86_64-linux-gnu/solid/networkmanager-0.7/manager.moc:135
#18 0x00007fb3355f4e4e in NMNetworkManager::deviceRemoved (this=0xf7ea90, objpath=@0x1784c00) at /build/buildd/kdebase-workspace-4.2.95/solid/networkmanager-0.7/manager.cpp:207
#19 0x00007fb3355f7864 in NMNetworkManager::qt_metacall (this=0xf7ea90, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff5bc71d40)
    at /build/buildd/kdebase-workspace-4.2.95/obj-x86_64-linux-gnu/solid/networkmanager-0.7/manager.moc:106
#20 0x00007fb3537748d2 in QMetaObject::activate (sender=0xf7b8b0, from_signal_index=<value optimized out>, to_signal_index=6, argv=0x0) at kernel/qobject.cpp:3120
#21 0x00007fb335603a85 in OrgFreedesktopNetworkManagerInterface::DeviceRemoved (this=0x7fff5bc71670, _t1=<value optimized out>)
    at /build/buildd/kdebase-workspace-4.2.95/obj-x86_64-linux-gnu/solid/networkmanager-0.7/nm-manager-clientinterface.moc:156
#22 0x00007fb335604164 in OrgFreedesktopNetworkManagerInterface::qt_metacall (this=0xf7b8b0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff5bc72200)
    at /build/buildd/kdebase-workspace-4.2.95/obj-x86_64-linux-gnu/solid/networkmanager-0.7/nm-manager-clientinterface.moc:97
#23 0x00007fb3519e4433 in QDBusConnectionPrivate::deliverCall (this=0xf7c950, object=0xf7b8b0, msg=@0x13d1338, metaTypes=@0x13d1340, slotIdx=6) at qdbusintegrator.cpp:891
#24 0x00007fb3519ebe1f in QDBusCallDeliveryEvent::placeMetaCall (this=0x300000000, object=0x13d4d50) at qdbusintegrator_p.h:101
#25 0x00007fb35376ef28 in QObject::event (this=0xf7b8b0, e=0x13d12f0) at kernel/qobject.cpp:1118
#26 0x00007fb350d01b9d in QApplicationPrivate::notify_helper (this=0x806f60, receiver=0xf7b8b0, e=0x13d12f0) at kernel/qapplication.cpp:4057
#27 0x00007fb350d09dea in QApplication::notify (this=0x7c7af0, receiver=0xf7b8b0, e=0x13d12f0) at kernel/qapplication.cpp:4022
#28 0x00007fb351e3e62b in KApplication::notify (this=0x7c7af0, receiver=0xf7b8b0, event=0x13d12f0) at /build/buildd/kde4libs-4.2.95/kdeui/kernel/kapplication.cpp:302
#29 0x00007fb35375edfc in QCoreApplication::notifyInternal (this=0x7c7af0, receiver=0xf7b8b0, event=0x13d12f0) at kernel/qcoreapplication.cpp:610
#30 0x00007fb35375fa6a in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x779100) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#31 0x00007fb3537888a3 in postEventSourceDispatch (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#32 0x00007fb34f79520a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#33 0x00007fb34f7988e0 in ?? () from /usr/lib/libglib-2.0.so.0
#34 0x00007fb34f798a7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#35 0x00007fb35378852f in QEventDispatcherGlib::processEvents (this=0x806c00, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:324
#36 0x00007fb350d9a70f in QGuiEventDispatcherGlib::processEvents (this=0x7fff5bc71670, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#37 0x00007fb35375d6a2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 1539779408}) at kernel/qeventloop.cpp:149
#38 0x00007fb35375da6d in QEventLoop::exec (this=0x7fff5bc72b90, flags={i = 1539779488}) at kernel/qeventloop.cpp:200
#39 0x00007fb35375fd34 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#40 0x00007fb34838063b in kdemain (argc=1, argv=0x7b7390) at /build/buildd/kdebase-workspace-4.2.95/plasma/shells/desktop/main.cpp:50
#41 0x000000000040714e in launch (argc=1, _name=0x7d27f8 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=0, envs=0x7d2818 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x40a309 "0") at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:672
#42 0x0000000000407978 in handle_launcher_request (sock=7, who=<value optimized out>) at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:1164
#43 0x0000000000407f25 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:1357
#44 0x0000000000408a66 in main (argc=2, argv=0x7fff5bc73a28, envp=0x7fff5bc73a40) at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:1784

This bug may be a duplicate of or related to bug 196943

Reported using DrKonqi