Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-19-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
I was accidently moving a notification window and dropped it back into the bar of notifications. Then plasma crashed...

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7f75c3eef750 (LWP 2951))]

Thread 2 (Thread 0x7f75a2fdf910 (LWP 2956)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f75c393c4fb in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x255b078, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x255b078, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f75bfd7378c in QHostInfoAgent::run (this=0x255b060) at kernel/qhostinfo.cpp:260
#4  0x00007f75c393b445 in QThreadPrivate::start (arg=0x255b060) at thread/qthread_unix.cpp:188
#5  0x00007f75c06b1a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007f75c129180d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f75c3eef750 (LWP 2951)):
[KCrash Handler]
#5  0x00007f75bb46a694 in Plasma::ExtenderItem::group (this=0x2bef9d0) at ../../plasma/extenderitem.cpp:335
#6  0x00007f75bb468ea8 in Plasma::ExtenderGroup::items (this=0x24fc3e0) at ../../plasma/extendergroup.cpp:92
#7  0x00007f75a5765b83 in SystemTray::ExtenderTaskBusyWidget::updateTask (this=0x2674560) at ../../../../plasma/applets/systemtray/core/extendertask.cpp:157
#8  0x00007f75a5766570 in SystemTray::ExtenderTaskBusyWidget::qt_metacall (this=0x2674560, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>)
    at ./extendertask.moc:69
#9  0x00007f75c3a36ddc in QMetaObject::activate (sender=0x23aa5b0, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3113
#10 0x00007f75a5766cb2 in SystemTray::Manager::notificationRemoved (this=0x2bef9d0, _t1=0x32cc510) at ./manager.moc:160
#11 0x00007f75a5767f14 in SystemTray::Manager::qt_metacall (this=0x23aa5b0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff7f750cc0) at ./manager.moc:110
#12 0x00007f75c3a36ddc in QMetaObject::activate (sender=0x32cc510, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3113
#13 0x00007f75a5768e47 in SystemTray::Notification::destroyed (this=0x2bef9d0, _t1=0x32cc510) at ./notification.moc:101
#14 0x00007f75a576987b in ~Notification (this=0x2bef9d0, __in_chrg=<value optimized out>) at ../../../../plasma/applets/systemtray/core/notification.cpp:63
#15 0x00007f75a5776a1a in ~DBusNotification (this=0x32cc510, __in_chrg=<value optimized out>) at ../../../../plasma/applets/systemtray/protocols/notifications/dbusnotification.cpp:38
#16 0x00007f75c3a3111d in QObject::event (this=0x32cc510, e=0x24ee500) at kernel/qobject.cpp:1094
#17 0x00007f75c19d1efc in QApplicationPrivate::notify_helper (this=0x1dd7cb0, receiver=0x32cc510, e=0x28b3590) at kernel/qapplication.cpp:4056
#18 0x00007f75c19d91ce in QApplication::notify (this=0x1dcea70, receiver=0x32cc510, e=0x28b3590) at kernel/qapplication.cpp:4021
#19 0x00007f75c2608ab6 in KApplication::notify (this=0x1dcea70, receiver=0x32cc510, event=0x28b3590) at ../../kdeui/kernel/kapplication.cpp:302
#20 0x00007f75c3a21c2c in QCoreApplication::notifyInternal (this=0x1dcea70, receiver=0x32cc510, event=0x28b3590) at kernel/qcoreapplication.cpp:610
#21 0x00007f75c3a2280a in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x1d404d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#22 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x1d404d0) at kernel/qcoreapplication.cpp:1247
#23 0x00007f75c3a4a533 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#24 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:210
#25 0x00007f75c0902bce in g_main_dispatch (context=0x1dda520) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:1960
#26 IA__g_main_context_dispatch (context=0x1dda520) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2513
#27 0x00007f75c0906598 in g_main_context_iterate (context=0x1dda520, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>)
    at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2591
#28 0x00007f75c09066c0 in IA__g_main_context_iteration (context=0x1dda520, may_block=1) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2654
#29 0x00007f75c3a4a1a6 in QEventDispatcherGlib::processEvents (this=0x1d43040, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#30 0x00007f75c1a664be in QGuiEventDispatcherGlib::processEvents (this=0x2bef9d0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#31 0x00007f75c3a20532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#32 0x00007f75c3a20904 in QEventLoop::exec (this=0x7fff7f751550, flags=) at kernel/qeventloop.cpp:201
#33 0x00007f75c3a22ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#34 0x00007f75b7a644cf in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/shells/desktop/main.cpp:50
#35 0x0000000000406da8 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=0x40a299 "0") at ../../kinit/kinit.cpp:677
#36 0x0000000000407aa0 in handle_launcher_request (sock=8, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#37 0x0000000000407f51 in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1362
#38 0x0000000000408bb2 in main (argc=2, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1793
The current source language is "auto; currently asm".
The current source language is "auto; currently c".

This bug may be a duplicate of or related to bug 213255

Reported using DrKonqi