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 2.6.31-15-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
click over plasmoid icon to open it. click over categories to show/hide them (i don't know wich one), than desktop crash, everything gets black, after a while (sometimes a lot), desktop comes back.
When it comes back, seems that all software are still opened ok. Just some icons in notify that gets out from notify plasmoid (like foobar2000(wine) and aMsn, this icons get floating over its own little windows. 

 -- Backtrace:
Application: Espaço de trabalho do Plasma (kdeinit4), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7f2a15865750 (LWP 6494))]

Thread 14 (Thread 0x7f29e75ea910 (LWP 6500)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f2a152af4fb in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x2894b48, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x2894b48, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f2a116e678c in QHostInfoAgent::run (this=0x2894b30) at kernel/qhostinfo.cpp:260
#4  0x00007f2a152ae445 in QThreadPrivate::start (arg=0x2894b30) at thread/qthread_unix.cpp:188
#5  0x00007f2a12024a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007f2a12c047bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7f29e46e0910 (LWP 6501)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:220
#1  0x00007f29e6425da1 in metronom_sync_loop (this=0x2924da0) at metronom.c:870
#2  0x00007f2a12024a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#3  0x00007f2a12c047bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()
The current source language is "auto; currently asm".

Thread 12 (Thread 0x7f29e327c910 (LWP 6502)):
#0  0x00007f2a12bfd3c2 in select () from /lib/libc.so.6
#1  0x00007f29e644e815 in xine_usec_sleep (usec=<value optimized out>) at utils.c:481
#2  0x00007f29e64339b7 in video_out_loop (this_gen=<value optimized out>) at video_out.c:1253
#3  0x00007f2a12024a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007f2a12c047bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f29e1959910 (LWP 6513)):
#0  0x00007f2a12bf8373 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=5) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f2a1227936c in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f2a122796b0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007f2a153bd1fe in QEventDispatcherGlib::processEvents (this=0x2d57240, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:329
#4  0x00007f2a15393532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f2a15393904 in QEventLoop::exec (this=0x7f29e1959000, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f2a152ab6cb in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#7  0x00007f29e668056e in ?? () from /usr/lib/qt4/plugins/phonon_backend/phonon_xine.so
#8  0x00007f2a152ae445 in QThreadPrivate::start (arg=0x2d50a60) at thread/qthread_unix.cpp:188
#9  0x00007f2a12024a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007f2a12c047bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()
The current source language is "auto; currently c".

Thread 10 (Thread 0x7f29dcd46910 (LWP 6519)):
#0  0x00007f2a12bf8373 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=333) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f29e0f54c5e in my_snd_mixer_wait (data=<value optimized out>) at audio_alsa_out.c:150
#2  ao_alsa_handle_event_thread (data=<value optimized out>) at audio_alsa_out.c:166
#3  0x00007f2a12024a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007f2a12c047bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f29e0b41910 (LWP 6520)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f29e6436aa3 in fifo_peek_int (this_gen=<value optimized out>) at audio_out.c:346
#2  fifo_peek (this_gen=<value optimized out>) at audio_out.c:386
#3  ao_loop (this_gen=<value optimized out>) at audio_out.c:1013
#4  0x00007f2a12024a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#5  0x00007f2a12c047bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f29ee115910 (LWP 13850)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:220
#1  0x00007f29e6425da1 in metronom_sync_loop (this=0x469cae0) at metronom.c:870
#2  0x00007f2a12024a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#3  0x00007f2a12c047bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()
The current source language is "auto; currently asm".

Thread 7 (Thread 0x7f29e0340910 (LWP 13856)):
#0  0x00007f2a12bf8373 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=333) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f29e0f54c5e in my_snd_mixer_wait (data=<value optimized out>) at audio_alsa_out.c:150
#2  ao_alsa_handle_event_thread (data=<value optimized out>) at audio_alsa_out.c:166
#3  0x00007f2a12024a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007f2a12c047bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f29d51f4910 (LWP 13857)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f29e6436aa3 in fifo_peek_int (this_gen=<value optimized out>) at audio_out.c:346
#2  fifo_peek (this_gen=<value optimized out>) at audio_out.c:386
#3  ao_loop (this_gen=<value optimized out>) at audio_out.c:1013
#4  0x00007f2a12024a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#5  0x00007f2a12c047bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()
The current source language is "auto; currently c".

Thread 5 (Thread 0x7f29d49f3910 (LWP 13862)):
#0  0x00007f2a12bfd3c2 in select () from /lib/libc.so.6
#1  0x00007f29e644e815 in xine_usec_sleep (usec=<value optimized out>) at utils.c:481
#2  0x00007f29e64339b7 in video_out_loop (this_gen=<value optimized out>) at video_out.c:1253
#3  0x00007f2a12024a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007f2a12c047bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()
The current source language is "auto; currently asm".

Thread 4 (Thread 0x7f29d8de0910 (LWP 13863)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f29e642965b in fifo_buffer_get (fifo=0x7f29e89de230) at buffer.c:230
#2  0x00007f29e642f67d in video_decoder_loop (stream_gen=<value optimized out>) at video_decoder.c:130
#3  0x00007f2a12024a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007f2a12c047bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()
The current source language is "auto; currently c".

Thread 3 (Thread 0x7f29d85df910 (LWP 13864)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f29e642965b in fifo_buffer_get (fifo=0x7f29e8de0820) at buffer.c:230
#2  0x00007f29e64306b5 in audio_decoder_loop (stream_gen=<value optimized out>) at audio_decoder.c:66
#3  0x00007f2a12024a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007f2a12c047bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()
The current source language is "auto; currently asm".

Thread 2 (Thread 0x7f29d7dde910 (LWP 13865)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f29e6439acb in xine_event_wait (queue=0x7f29e8fcf090) at events.c:56
#2  0x00007f29e6439b3e in listener_loop (queue_gen=<value optimized out>) at events.c:214
#3  0x00007f2a12024a04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007f2a12c047bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f2a15865750 (LWP 6494)):
[KCrash Handler]
#5  Plasma::Containment::containmentType (this=0x0) at ../../plasma/containment.cpp:418
#6  0x00007f2a0ce94c63 in Plasma::Applet::destroy (this=0x2deebd0) at ../../plasma/applet.cpp:429
#7  0x00007f29f19cf744 in ?? () from /usr/lib/kde4/plasma_applet_system-monitor.so
#8  0x00007f29f19d0058 in ?? () from /usr/lib/kde4/plasma_applet_system-monitor.so
#9  0x00007f29f19d018c in ?? () from /usr/lib/kde4/plasma_applet_system-monitor.so
#10 0x00007f2a153a9ddc in QMetaObject::activate (sender=0x2e01550, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x6) at kernel/qobject.cpp:3113
#11 0x00007f2a0cf2f7b2 in Plasma::PushButton::toggled (this=0x0, _t1=false) at ./pushbutton.moc:140
#12 0x00007f2a0cf30bf0 in Plasma::PushButton::qt_metacall (this=0x2e01550, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0x7ffffb458590) at ./pushbutton.moc:85
#13 0x00007f29f19d1dd5 in MonitorButton::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/kde4/plasma_applet_system-monitor.so
#14 0x00007f2a153a9ddc in QMetaObject::activate (sender=0x2d9c140, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x6) at kernel/qobject.cpp:3113
#15 0x00007f2a13946872 in QAbstractButton::toggled (this=0x0, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:207
#16 0x00007f2a136aa328 in QAbstractButton::setChecked (this=0x2d9c140, checked=6) at widgets/qabstractbutton.cpp:763
#17 0x00007f2a136a9fea in QAbstractButtonPrivate::click (this=0x2e01e10) at widgets/qabstractbutton.cpp:525
#18 0x00007f2a136aa275 in QAbstractButton::mouseReleaseEvent (this=0x2d9c140, e=0x42b0480) at widgets/qabstractbutton.cpp:1115
#19 0x00007f2a133939c0 in QWidget::event (this=0x2d9c140, event=0x42b0480) at kernel/qwidget.cpp:7549
#20 0x00007f2a13344efc in QApplicationPrivate::notify_helper (this=0x1e03bb0, receiver=0x2d9c140, e=0x42b0480) at kernel/qapplication.cpp:4056
#21 0x00007f2a1334c011 in QApplication::notify (this=<value optimized out>, receiver=0x2d9c140, e=0x42b0480) at kernel/qapplication.cpp:3758
#22 0x00007f2a13f7bab6 in KApplication::notify (this=0x1dfaa50, receiver=0x2d9c140, event=0x42b0480) at ../../kdeui/kernel/kapplication.cpp:302
#23 0x00007f2a15394c2c in QCoreApplication::notifyInternal (this=0x1dfaa50, receiver=0x2d9c140, event=0x42b0480) at kernel/qcoreapplication.cpp:610
#24 0x00007f2a1334b8e0 in QCoreApplication::sendSpontaneousEvent (receiver=0x2d9c140, event=0x42b0480, alienWidget=0x0, nativeWidget=0x2d9c140, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#25 QApplicationPrivate::sendMouseEvent (receiver=0x2d9c140, event=0x42b0480, alienWidget=0x0, nativeWidget=0x2d9c140, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>)
    at kernel/qapplication.cpp:2924
#26 0x00007f2a1392a518 in QGraphicsProxyWidgetPrivate::sendWidgetMouseEvent (this=0x2e01b40, event=0x7ffffb459450) at graphicsview/qgraphicsproxywidget.cpp:278
#27 0x00007f2a138cb0e9 in QGraphicsItem::sceneEvent (this=0x0, event=0x6) at graphicsview/qgraphicsitem.cpp:5030
#28 0x00007f2a138f0bc9 in QGraphicsScenePrivate::sendMouseEvent (this=0x1e7cab0, mouseEvent=0x7ffffb459450) at graphicsview/qgraphicsscene.cpp:1230
#29 0x00007f2a138f90d5 in QGraphicsScene::mouseReleaseEvent (this=<value optimized out>, mouseEvent=0x7ffffb459450) at graphicsview/qgraphicsscene.cpp:4445
#30 0x00007f2a138fac9f in QGraphicsScene::event (this=0x1e3b430, event=0x7ffffb459450) at graphicsview/qgraphicsscene.cpp:3808
#31 0x00007f2a13344efc in QApplicationPrivate::notify_helper (this=0x1e03bb0, receiver=0x1e3b430, e=0x7ffffb459450) at kernel/qapplication.cpp:4056
#32 0x00007f2a1334c1ce in QApplication::notify (this=0x1dfaa50, receiver=0x1e3b430, e=0x7ffffb459450) at kernel/qapplication.cpp:4021
#33 0x00007f2a13f7bab6 in KApplication::notify (this=0x1dfaa50, receiver=0x1e3b430, event=0x7ffffb459450) at ../../kdeui/kernel/kapplication.cpp:302
#34 0x00007f2a15394c2c in QCoreApplication::notifyInternal (this=0x1dfaa50, receiver=0x1e3b430, event=0x7ffffb459450) at kernel/qcoreapplication.cpp:610
#35 0x00007f2a1390ceb1 in QCoreApplication::sendEvent (this=0x2e5f0d0, event=0x7ffffb459c40) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#36 QGraphicsView::mouseReleaseEvent (this=0x2e5f0d0, event=0x7ffffb459c40) at graphicsview/qgraphicsview.cpp:3382
#37 0x00007f2a133939c0 in QWidget::event (this=0x2e5f0d0, event=0x7ffffb459c40) at kernel/qwidget.cpp:7549
#38 0x00007f2a136ef2a6 in QFrame::event (this=0x2e5f0d0, e=0x7ffffb459c40) at widgets/qframe.cpp:559
#39 0x00007f2a1390c92b in QGraphicsView::viewportEvent (this=0x2e5f0d0, event=0x7ffffb459c40) at graphicsview/qgraphicsview.cpp:2919
#40 0x00007f2a15393f47 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x2e5b5a0, event=0x7ffffb459c40) at kernel/qcoreapplication.cpp:726
#41 0x00007f2a13344ecc in QApplicationPrivate::notify_helper (this=0x1e03bb0, receiver=0x2e5b5a0, e=0x7ffffb459c40) at kernel/qapplication.cpp:4052
#42 0x00007f2a1334c011 in QApplication::notify (this=<value optimized out>, receiver=0x2e5b5a0, e=0x7ffffb459c40) at kernel/qapplication.cpp:3758
#43 0x00007f2a13f7bab6 in KApplication::notify (this=0x1dfaa50, receiver=0x2e5b5a0, event=0x7ffffb459c40) at ../../kdeui/kernel/kapplication.cpp:302
#44 0x00007f2a15394c2c in QCoreApplication::notifyInternal (this=0x1dfaa50, receiver=0x2e5b5a0, event=0x7ffffb459c40) at kernel/qcoreapplication.cpp:610
#45 0x00007f2a1334b8e0 in QCoreApplication::sendSpontaneousEvent (receiver=0x2e5b5a0, event=0x7ffffb459c40, alienWidget=0x2e5b5a0, nativeWidget=0x2424af0, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#46 QApplicationPrivate::sendMouseEvent (receiver=0x2e5b5a0, event=0x7ffffb459c40, alienWidget=0x2e5b5a0, nativeWidget=0x2424af0, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>) at kernel/qapplication.cpp:2924
#47 0x00007f2a133b1a0e in QETWidget::translateMouseEvent (this=0x2424af0, event=<value optimized out>) at kernel/qapplication_x11.cpp:4409
#48 0x00007f2a133b0aa9 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7ffffb45b770) at kernel/qapplication_x11.cpp:3550
#49 0x00007f2a133d9d0c in x11EventSourceDispatch (s=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#50 0x00007f2a12275bbe in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#51 0x00007f2a12279588 in ?? () from /lib/libglib-2.0.so.0
#52 0x00007f2a122796b0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#53 0x00007f2a153bd1a6 in QEventDispatcherGlib::processEvents (this=0x1d73040, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#54 0x00007f2a133d94be in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#55 0x00007f2a15393532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#56 0x00007f2a15393904 in QEventLoop::exec (this=0x7ffffb45baa0, flags=) at kernel/qeventloop.cpp:201
#57 0x00007f2a15395ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#58 0x00007f2a08f3a4cf in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#59 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
#60 0x0000000000407aa0 in handle_launcher_request (sock=8, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#61 0x0000000000407f51 in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1362
#62 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 c".

This bug may be a duplicate of or related to bug 205660

Reported using DrKonqi