Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-17-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
While downloading files to the desktop plasma crashed not visible behind the browser window

 -- Backtrace:
Application: Plasma-Arbeitsfläche (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7719700 (LWP 4134))]

Thread 2 (Thread 0xab3bbb70 (LWP 4135)):
#0  0x00a97422 in __kernel_vsyscall ()
#1  0x00beee15 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:122
#2  0x00b7178d in __pthread_cond_wait (cond=0xa2f6318, mutex=0xa2f6300) at forward.c:139
#3  0x0015fe67 in QWaitConditionPrivate::wait (this=0x9e77d20, mutex=0x9e77d1c, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0x9e77d20, mutex=0x9e77d1c, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0x05e5c922 in QHostInfoAgent::run (this=0x9e77d10) at kernel/qhostinfo.cpp:260
#6  0x0015ee32 in QThreadPrivate::start (arg=0x9e77d10) at thread/qthread_unix.cpp:188
#7  0x00bea80e in start_thread (arg=0xab3bbb70) at pthread_create.c:300
#8  0x00b647ee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb7719700 (LWP 4134)):
[KCrash Handler]
#6  XVisualIDFromVisual (visual=0xa45efcc) at ../../src/Misc.c:61
#7  0x011a870e in qt_x11_getX11InfoForWindow (xinfo=0xa45efcc, a=...) at kernel/qwidget_x11.cpp:400
#8  0x011afb4e in QWidgetPrivate::create_sys (this=0xa45eed8, window=29769855, initializeWindow=true, destroyOldWindow=true) at kernel/qwidget_x11.cpp:545
#9  0x01170b1c in QWidget::create (this=0xbe8d518, window=29769855, initializeWindow=true, destroyOldWindow=<value optimized out>) at kernel/qwidget.cpp:1253
#10 0x060a7c5e in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#11 0x060a3440 in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#12 0x060a351b in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#13 0x00265263 in QMetaObject::activate (sender=0xac065c0, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3113
#14 0x00265ec2 in QMetaObject::activate (sender=0xac065c0, m=0x33f908, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#15 0x0026a387 in QSingleShotTimer::timeout (this=0xac065c0) at .moc/release-shared/qtimer.moc:76
#16 0x0026a49c in QSingleShotTimer::timerEvent (this=0xac065c0) at kernel/qtimer.cpp:298
#17 0x0025f3bf in QObject::event (this=0xac065c0, e=0xbf9ffd40) at kernel/qobject.cpp:1075
#18 0x01119f54 in QApplicationPrivate::notify_helper (this=0x9dc2908, receiver=0xac065c0, e=0xbf9ffd40) at kernel/qapplication.cpp:4056
#19 0x0112167c in QApplication::notify (this=0x9d9ba20, receiver=0xac065c0, e=0xbf9ffd40) at kernel/qapplication.cpp:3603
#20 0x00e391aa in KApplication::notify (this=0x9d9ba20, receiver=0xac065c0, event=0xbf9ffd40) at ../../kdeui/kernel/kapplication.cpp:302
#21 0x0024f6cb in QCoreApplication::notifyInternal (this=0x9d9ba20, receiver=0xac065c0, event=0xbf9ffd40) at kernel/qcoreapplication.cpp:610
#22 0x0027c7ce in QCoreApplication::sendEvent (this=0x9dc5534) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#23 QTimerInfoList::activateTimers (this=0x9dc5534) at kernel/qeventdispatcher_unix.cpp:572
#24 0x0027a0e0 in timerSourceDispatch (source=0x9dc5500) at kernel/qeventdispatcher_glib.cpp:165
#25 0x0337be88 in g_main_dispatch (context=0x9dc4898) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:1960
#26 IA__g_main_context_dispatch (context=0x9dc4898) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2513
#27 0x0337f730 in g_main_context_iterate (context=0x9dc4898, block=<value optimized out>, dispatch=1, self=0x9dc23e0) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2591
#28 0x0337f863 in IA__g_main_context_iteration (context=0x9dc4898, may_block=1) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2654
#29 0x0027a02c in QEventDispatcherGlib::processEvents (this=0x9dc26c8, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#30 0x011babe5 in QGuiEventDispatcherGlib::processEvents (this=0x9dc26c8, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#31 0x0024dc79 in QEventLoop::processEvents (this=0xbfa00004, flags=) at kernel/qeventloop.cpp:149
#32 0x0024e0ca in QEventLoop::exec (this=0xbfa00004, flags=...) at kernel/qeventloop.cpp:201
#33 0x0025053f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#34 0x01119dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#35 0x061a080d in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#36 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x9d5b638 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80511a5 "0") at ../../kinit/kinit.cpp:677
#37 0x0804ea35 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#38 0x0804eeac in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#39 0x0804fbaf in main (argc=2, argv=0xbfa00864, envp=0xbfa00870) at ../../kinit/kinit.cpp:1793

Reported using DrKonqi