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 2.6.31-16-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Konsole was open but minimized. I click the application button on taskbar and click again half a second later.

 -- Backtrace:
Application: Área de trabajo de Plasma (kdeinit4), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7f472a999750 (LWP 2038))]

Thread 2 (Thread 0x7f470acf8910 (LWP 2039)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f472a3db4fb in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x173aac8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x173aac8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f472681278c in QHostInfoAgent::run (this=0x173aab0) at kernel/qhostinfo.cpp:260
#4  0x00007f472a3da445 in QThreadPrivate::start (arg=0x173aab0) at thread/qthread_unix.cpp:188
#5  0x00007f4727150a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007f4727d307bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f472a999750 (LWP 2038)):
[KCrash Handler]
#5  0x00007f47289f1484 in QGraphicsItem::isWidget (this=0x30462d0) at graphicsview/qgraphicsitem.cpp:1143
#6  0x00007f47289f3b89 in QGraphicsItem::isWindow (this=0x30462d0) at graphicsview/qgraphicsitem.cpp:1156
#7  0x00007f4728a27269 in QGraphicsScene::event (this=0x11b2d50, event=<value optimized out>) at graphicsview/qgraphicsscene.cpp:3850
#8  0x00007f4728470efc in QApplicationPrivate::notify_helper (this=0x112fc80, receiver=0x11b2d50, e=0x7fff11c6fd20) at kernel/qapplication.cpp:4056
#9  0x00007f47284781ce in QApplication::notify (this=0x1126b20, receiver=0x11b2d50, e=0x7fff11c6fd20) at kernel/qapplication.cpp:4021
#10 0x00007f47290a7ab6 in KApplication::notify (this=0x1126b20, receiver=0x11b2d50, event=0x7fff11c6fd20) at ../../kdeui/kernel/kapplication.cpp:302
#11 0x00007f472a4c0c2c in QCoreApplication::notifyInternal (this=0x1126b20, receiver=0x11b2d50, event=0x7fff11c6fd20) at kernel/qcoreapplication.cpp:610
#12 0x00007f4728a389f6 in QCoreApplication::sendEvent (this=0x1b4f810, event=0x7fff11c6fd20) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#13 QGraphicsView::viewportEvent (this=0x1b4f810, event=0x7fff11c6fd20) at graphicsview/qgraphicsview.cpp:2880
#14 0x00007f472a4bff47 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x1cbb000, event=0x7fff11c6fd20) at kernel/qcoreapplication.cpp:726
#15 0x00007f4728470ecc in QApplicationPrivate::notify_helper (this=0x112fc80, receiver=0x1cbb000, e=0x7fff11c6fd20) at kernel/qapplication.cpp:4052
#16 0x00007f47284781ce in QApplication::notify (this=0x1126b20, receiver=0x1cbb000, e=0x7fff11c6fd20) at kernel/qapplication.cpp:4021
#17 0x00007f47290a7ab6 in KApplication::notify (this=0x1126b20, receiver=0x1cbb000, event=0x7fff11c6fd20) at ../../kdeui/kernel/kapplication.cpp:302
#18 0x00007f472a4c0c2c in QCoreApplication::notifyInternal (this=0x1126b20, receiver=0x1cbb000, event=0x7fff11c6fd20) at kernel/qcoreapplication.cpp:610
#19 0x00007f47284bfb6b in QCoreApplication::sendEvent (this=<value optimized out>, event=0x7fff11c6fd20) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#20 QWidget::event (this=<value optimized out>, event=0x7fff11c6fd20) at kernel/qwidget.cpp:7797
#21 0x00007f472881b2a6 in QFrame::event (this=0x1b4f810, e=0x7fff11c6fd20) at widgets/qframe.cpp:559
#22 0x00007f47288aabc9 in QAbstractScrollArea::event (this=0x1b4f810, e=0x7fff11c6fd20) at widgets/qabstractscrollarea.cpp:918
#23 0x00007f4728470efc in QApplicationPrivate::notify_helper (this=0x112fc80, receiver=0x1b4f810, e=0x7fff11c6fd20) at kernel/qapplication.cpp:4056
#24 0x00007f47284781ce in QApplication::notify (this=0x1126b20, receiver=0x1b4f810, e=0x7fff11c6fd20) at kernel/qapplication.cpp:4021
#25 0x00007f47290a7ab6 in KApplication::notify (this=0x1126b20, receiver=0x1b4f810, event=0x7fff11c6fd20) at ../../kdeui/kernel/kapplication.cpp:302
#26 0x00007f472a4c0c2c in QCoreApplication::notifyInternal (this=0x1126b20, receiver=0x1b4f810, event=0x7fff11c6fd20) at kernel/qcoreapplication.cpp:610
#27 0x00007f472847b55b in QCoreApplication::sendSpontaneousEvent (act=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#28 QApplication::setActiveWindow (act=<value optimized out>) at kernel/qapplication.cpp:2414
#29 0x00007f47284dcb9e in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff11c71600) at kernel/qapplication_x11.cpp:3469
#30 0x00007f4728505d0c in x11EventSourceDispatch (s=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#31 0x00007f47273a1bbe in g_main_dispatch (context=0x1132120) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:1960
#32 IA__g_main_context_dispatch (context=0x1132120) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2513
#33 0x00007f47273a5588 in g_main_context_iterate (context=0x1132120, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>)
    at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2591
#34 0x00007f47273a56b0 in IA__g_main_context_iteration (context=0x1132120, may_block=1) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2654
#35 0x00007f472a4e91a6 in QEventDispatcherGlib::processEvents (this=0x10a0040, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#36 0x00007f47285054be in QGuiEventDispatcherGlib::processEvents (this=0x30462d0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#37 0x00007f472a4bf532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#38 0x00007f472a4bf904 in QEventLoop::exec (this=0x7fff11c71930, flags=) at kernel/qeventloop.cpp:201
#39 0x00007f472a4c1ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#40 0x00007f471e8424cf in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/shells/desktop/main.cpp:50
#41 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
#42 0x0000000000407aa0 in handle_launcher_request (sock=8, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#43 0x0000000000407f51 in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1362
#44 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".

Reported using DrKonqi