Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.95 (KDE 4.2.95 (KDE 4.3 RC1))
Qt Version: 4.5.0
Operating System: Linux 2.6.30-020630-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
Crash on plasma when i copy files

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 3535)]

Thread 2 (Thread 0xa944ab90 (LWP 3538)):
#0  0xb7fd3430 in __kernel_vsyscall ()
#1  0xb649e0e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb667e2ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7dd19b2 in QWaitCondition::wait (this=0xa4e5f38, mutex=0xa4e5f34, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb770d152 in QHostInfoAgent::run (this=0xa4e5f28) at kernel/qhostinfo.cpp:260
#5  0xb7dd096e in QThreadPrivate::start (arg=0xa4e5f28) at thread/qthread_unix.cpp:189
#6  0xb649a4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb666f49e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb5fa8a10 (LWP 3535)):
[KCrash Handler]
#6  0xa95e232a in TaskManager::GroupManager::manualSortingRequest () from /usr/lib/libtaskmanager.so.4
#7  0xa95e031b in TaskManager::AbstractGroupingStrategy::closeGroup () from /usr/lib/libtaskmanager.so.4
#8  0xa95e7f27 in ?? () from /usr/lib/libtaskmanager.so.4
#9  0xa95e8e5b in ?? () from /usr/lib/libtaskmanager.so.4
#10 0xb7edaca8 in QMetaObject::activate (sender=0xa67d830, from_signal_index=22, to_signal_index=22, argv=0xbffbaecc) at kernel/qobject.cpp:3069
#11 0xb7edb932 in QMetaObject::activate (sender=0xa67d830, m=0xa960ab74, local_signal_index=1, argv=0xbffbaecc) at kernel/qobject.cpp:3143
#12 0xa95fbd83 in TaskManager::TaskGroup::itemRemoved () from /usr/lib/libtaskmanager.so.4
#13 0xa95fc7ab in TaskManager::TaskGroup::remove () from /usr/lib/libtaskmanager.so.4
#14 0xa95e2ba5 in ?? () from /usr/lib/libtaskmanager.so.4
#15 0xa95e546a in TaskManager::GroupManager::qt_metacall () from /usr/lib/libtaskmanager.so.4
#16 0xb7edaca8 in QMetaObject::activate (sender=0xa2477a0, from_signal_index=5, to_signal_index=5, argv=0xbffbb05c) at kernel/qobject.cpp:3069
#17 0xb7edb932 in QMetaObject::activate (sender=0xa2477a0, m=0xa960ad3c, local_signal_index=1, argv=0xbffbb05c) at kernel/qobject.cpp:3143
#18 0xa95ff823 in TaskManager::TaskManager::taskRemoved () from /usr/lib/libtaskmanager.so.4
#19 0xa96010cf in TaskManager::TaskManager::windowRemoved () from /usr/lib/libtaskmanager.so.4
#20 0xa9602fec in TaskManager::TaskManager::qt_metacall () from /usr/lib/libtaskmanager.so.4
#21 0xb7edaca8 in QMetaObject::activate (sender=0xa16c818, from_signal_index=6, to_signal_index=6, argv=0xbffbb1cc) at kernel/qobject.cpp:3069
#22 0xb7edb932 in QMetaObject::activate (sender=0xa16c818, m=0xb764326c, local_signal_index=2, argv=0xbffbb1cc) at kernel/qobject.cpp:3143
#23 0xb75db853 in KWindowSystem::windowRemoved (this=0xa16c818, _t1=54525954) at /build/buildd/kde4libs-4.2.95/obj-i486-linux-gnu/kdeui/kwindowsystem.moc:127
#24 0xb75de0d6 in KWindowSystemPrivate::removeClient (this=0x9fa86d8, w=54525954) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:249
#25 0xb75ed753 in NETRootInfo::update (this=0x9fa86ec, dirty_props=0xbffbb314) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/netwm.cpp:2135
#26 0xb75edb3f in NETRootInfo::event (this=0x9fa86ec, event=0xbffbba2c, properties=0xbffbb3f8, properties_size=5) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/netwm.cpp:2058
#27 0xb75de36d in KWindowSystemPrivate::x11Event (this=0x9fa86d8, ev=0xbffbb9cc) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:136
#28 0xb748e6f9 in KApplication::x11EventFilter (this=0x9eb2a80, _event=0xbffbb9cc) at /build/buildd/kde4libs-4.2.95/kdeui/kernel/kapplication.cpp:911
#29 0xb4c01e37 in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#30 0xb69b7f3e in qt_x11EventFilter (ev=0xbffbb9cc) at kernel/qapplication_x11.cpp:375
#31 0xb69ca6a8 in QApplication::x11ProcessEvent (this=0x9eb2a80, event=0xbffbb9cc) at kernel/qapplication_x11.cpp:3273
#32 0xb69f6c6a in x11EventSourceDispatch (s=0x9ebb870, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#33 0xb64e7b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#34 0xb64eb0eb in ?? () from /usr/lib/libglib-2.0.so.0
#35 0xb64eb268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#36 0xb7ef0438 in QEventDispatcherGlib::processEvents (this=0x9eb62a8, flags={i = -1074021496}) at kernel/qeventdispatcher_glib.cpp:323
#37 0xb69f6365 in QGuiEventDispatcherGlib::processEvents (this=0x9eb62a8, flags={i = -1074021448}) at kernel/qguieventdispatcher_glib.cpp:202
#38 0xb7ec306a in QEventLoop::processEvents (this=0xbffbbc30, flags={i = -1074021384}) at kernel/qeventloop.cpp:149
#39 0xb7ec34aa in QEventLoop::exec (this=0xbffbbc30, flags={i = -1074021320}) at kernel/qeventloop.cpp:200
#40 0xb7ec5959 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:880
#41 0xb6954d17 in QApplication::exec () at kernel/qapplication.cpp:3553
#42 0xb4bec510 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#43 0x0804e1c0 in launch (argc=1, _name=0x9e98514 "/usr/bin/plasma-desktop", args=0x9e9852c "", cwd=0x0, envc=0, envs=0x9e98530 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80512d1 "0") at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:672
#44 0x0804e99d in handle_launcher_request (sock=7, who=<value optimized out>) at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:1164
#45 0x0804ef25 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:1357
#46 0x0804fb0a in main (argc=2, argv=0xbffbc424, envp=0xbffbc430) at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:1784

Reported using DrKonqi