Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.3
Operating System: Linux 2.6.31.6-desktop-1mnb x86_64
Distribution: "Mandriva Linux 2010.0"

What I was doing when the application crashed:
The crash coincided with me clicking an icon on the tray but I'm not certain that as the cause. Either way, this is the first time seeing this backtrace (or similar) and am unable to reproduce it.

 -- Backtrace:
Application: Área de Trabalho do Plasma (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f0f78c74710 (LWP 4169))]

Thread 2 (Thread 0x7f0f58174910 (LWP 4172)):
#0  0x00007f0f7844fe59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f0f786bad5b in QWaitCondition::wait (this=<value optimized out>, mutex=0x2353138, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007f0f74b4617c in QHostInfoAgent::run (this=0x2353120) at kernel/qhostinfo.cpp:260
#3  0x00007f0f786b9ca5 in QThreadPrivate::start (arg=0x2353120) at thread/qthread_unix.cpp:188
#4  0x00007f0f7844b7cd in start_thread () from /lib64/libpthread.so.0
#5  0x00007f0f75e3937d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f0f78c74710 (LWP 4169)):
[KCrash Handler]
#5  0x00007f0f709c91d4 in Plasma::ExtenderItem::group (this=0x2625630) at /usr/src/debug/kdelibs-4.3.2/plasma/extenderitem.cpp:335
#6  0x00007f0f709c79e8 in Plasma::ExtenderGroup::items (this=0x23c5810) at /usr/src/debug/kdelibs-4.3.2/plasma/extendergroup.cpp:92
#7  0x00007f0f59413cf3 in SystemTray::ExtenderTaskBusyWidget::updateTask (this=0x242c890) at /usr/src/debug/kdebase-workspace-4.3.2/plasma/applets/systemtray/core/extendertask.cpp:155
#8  0x00007f0f594146e0 in SystemTray::ExtenderTaskBusyWidget::qt_metacall (this=0x242c890, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.3.2/build/plasma/applets/systemtray/extendertask.moc:69
#9  0x00007f0f787b488c in QMetaObject::activate (sender=0x2193110, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x2360e67) at kernel/qobject.cpp:3112
#10 0x00007f0f59414e22 in SystemTray::Manager::notificationRemoved (this=0x2625630, _t1=0x21141a0) at /usr/src/debug/kdebase-workspace-4.3.2/build/plasma/applets/systemtray/manager.moc:160
#11 0x00007f0f59416094 in SystemTray::Manager::qt_metacall (this=0x2193110, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff72bb7ea0)
    at /usr/src/debug/kdebase-workspace-4.3.2/build/plasma/applets/systemtray/manager.moc:110
#12 0x00007f0f787b488c in QMetaObject::activate (sender=0x21141a0, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x2360e67) at kernel/qobject.cpp:3112
#13 0x00007f0f59416fe7 in SystemTray::Notification::destroyed (this=0x2625630, _t1=0x21141a0) at /usr/src/debug/kdebase-workspace-4.3.2/build/plasma/applets/systemtray/notification.moc:101
#14 0x00007f0f594174bb in ~Notification (this=0x2625630) at /usr/src/debug/kdebase-workspace-4.3.2/plasma/applets/systemtray/core/notification.cpp:64
#15 0x00007f0f59424cea in ~DBusNotification (this=0x21141a0) at /usr/src/debug/kdebase-workspace-4.3.2/plasma/applets/systemtray/protocols/notifications/dbusnotification.cpp:38
#16 0x00007f0f787aebcd in QObject::event (this=0x21141a0, e=0x21a2080) at kernel/qobject.cpp:1093
#17 0x00007f0f7655a12c in QApplicationPrivate::notify_helper (this=0x1c0ee10, receiver=0x21141a0, e=0x266f130) at kernel/qapplication.cpp:4065
#18 0x00007f0f765613fe in QApplication::notify (this=0x1c05900, receiver=0x21141a0, e=0x266f130) at kernel/qapplication.cpp:4030
#19 0x00007f0f7717e2d6 in KApplication::notify (this=0x1c05900, receiver=0x21141a0, event=0x266f130) at /usr/src/debug/kdelibs-4.3.2/kdeui/kernel/kapplication.cpp:302
#20 0x00007f0f7879f6ac in QCoreApplication::notifyInternal (this=0x1c05900, receiver=0x21141a0, event=0x266f130) at kernel/qcoreapplication.cpp:610
#21 0x00007f0f787a02ba in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x1b71760) at ../../src/corelib/kernel/qcoreapplication.h:213
#22 0x00007f0f787c80d3 in postEventSourceDispatch (s=<value optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:218
#23 0x00007f0f754b44ce in IA__g_main_context_dispatch (context=0x1c11530) at gmain.c:1960
#24 0x00007f0f754b7e98 in g_main_context_iterate (context=0x1c11530, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2591
#25 0x00007f0f754b7fc0 in IA__g_main_context_iteration (context=0x1c11530, may_block=1) at gmain.c:2654
#26 0x00007f0f787c7c73 in QEventDispatcherGlib::processEvents (this=0x1b74080, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:406
#27 0x00007f0f765ed64e in QGuiEventDispatcherGlib::processEvents (this=0x2625630, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#28 0x00007f0f7879dfe2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#29 0x00007f0f7879e3b4 in QEventLoop::exec (this=0x7fff72bb8730, flags=) at kernel/qeventloop.cpp:201
#30 0x00007f0f787a0569 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#31 0x00007f0f6b47edaf in kdemain (argc=<value optimized out>, argv=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.3.2/plasma/shells/desktop/main.cpp:50
#32 0x00000000004068b8 in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=0, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x409d9d "0") at /usr/src/debug/kdelibs-4.3.2/kinit/kinit.cpp:677
#33 0x00000000004075b0 in handle_launcher_request (sock=8, who=<value optimized out>) at /usr/src/debug/kdelibs-4.3.2/kinit/kinit.cpp:1169
#34 0x0000000000407a61 in handle_requests (waitForPid=0) at /usr/src/debug/kdelibs-4.3.2/kinit/kinit.cpp:1362
#35 0x00000000004086c2 in main (argc=2, argv=<value optimized out>, envp=<value optimized out>) at /usr/src/debug/kdelibs-4.3.2/kinit/kinit.cpp:1793

This bug may be a duplicate of or related to bug 217624

Reported using DrKonqi