Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.31.1 x86_64
Distribution: Debian GNU/Linux 4.3 (n/a)

What I was doing when the application crashed:
when opening pdf document - libc-dbg is not downloadable with packet manager for debian squeeze!

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f97f5493750 (LWP 4109))]

Thread 2 (Thread 0x7f97d62a2950 (LWP 4111)):
#0  0x00007f97f1d13b89 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f97f4fd4469 in QWaitConditionPrivate::wait (this=0x151ea20, mutex=0x151ea18, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=0x151ea20, mutex=0x151ea18, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f97f13ce024 in QHostInfoAgent::run (this=0x151ea00) at kernel/qhostinfo.cpp:260
#4  0x00007f97f4fd3475 in QThreadPrivate::start (arg=0x151ea00) at thread/qthread_unix.cpp:188
#5  0x00007f97f1d0ff9a in start_thread () from /lib/libpthread.so.0
#6  0x00007f97f28d856d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f97f5493750 (LWP 4109)):
[KCrash Handler]
#5  0x00007f97d7e62dde in ?? () from /usr/lib/kde4/plasma_applet_tasks.so
#6  0x00007f97d7e5f366 in ?? () from /usr/lib/kde4/plasma_applet_tasks.so
#7  0x00007f97d7e5fcdc in ?? () from /usr/lib/kde4/plasma_applet_tasks.so
#8  0x00007f97d7e5fd6b in ?? () from /usr/lib/kde4/plasma_applet_tasks.so
#9  0x00007f97d7e60904 in ?? () from /usr/lib/kde4/plasma_applet_tasks.so
#10 0x00007f97d7e60ae8 in ?? () from /usr/lib/kde4/plasma_applet_tasks.so
#11 0x00007f97d7e6c508 in ?? () from /usr/lib/kde4/plasma_applet_tasks.so
#12 0x00007f97d7e6caf2 in ?? () from /usr/lib/kde4/plasma_applet_tasks.so
#13 0x00007f97f50ce682 in QMetaObject::activate (sender=0x12aa410, from_signal_index=<value optimized out>, to_signal_index=21, argv=0x0) at kernel/qobject.cpp:3112
#14 0x00007f97d80a647f in TaskManager::TaskGroup::itemAdded(TaskManager::AbstractGroupableItem*) () from /usr/lib/libtaskmanager.so.4
#15 0x00007f97d80a6fab in TaskManager::TaskGroup::add(TaskManager::AbstractGroupableItem*) () from /usr/lib/libtaskmanager.so.4
#16 0x00007f97d809601f in ?? () from /usr/lib/libtaskmanager.so.4
#17 0x00007f97d808fb6d in ?? () from /usr/lib/libtaskmanager.so.4
#18 0x00007f97d8091dbd in TaskManager::GroupManager::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libtaskmanager.so.4
#19 0x00007f97f50ce682 in QMetaObject::activate (sender=0x12a9a20, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3112
#20 0x00007f97d80a9852 in TaskManager::TaskManager::taskAdded(KSharedPtr<TaskManager::Task>) () from /usr/lib/libtaskmanager.so.4
#21 0x00007f97d80ab7c9 in TaskManager::TaskManager::windowAdded(unsigned long) () from /usr/lib/libtaskmanager.so.4
#22 0x00007f97d80ac96f in TaskManager::TaskManager::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libtaskmanager.so.4
#23 0x00007f97f50ce682 in QMetaObject::activate (sender=0x10ff410, from_signal_index=<value optimized out>, to_signal_index=5, argv=0x0) at kernel/qobject.cpp:3112
#24 0x00007f97f3dc8572 in KWindowSystem::windowAdded(unsigned long) () from /usr/lib/libkdeui.so.5
#25 0x00007f97f3dca83c in ?? () from /usr/lib/libkdeui.so.5
#26 0x00007f97f3dd8e77 in NETRootInfo::update(unsigned long const*) () from /usr/lib/libkdeui.so.5
#27 0x00007f97f3dd9b41 in NETRootInfo::event(_XEvent*, unsigned long*, int) () from /usr/lib/libkdeui.so.5
#28 0x00007f97f3dcacab in ?? () from /usr/lib/libkdeui.so.5
#29 0x00007f97f3c9d8d3 in KApplication::x11EventFilter(_XEvent*) () from /usr/lib/libkdeui.so.5
#30 0x00007f97e92786e4 in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#31 0x00007f97f309fb6f in qt_x11EventFilter (ev=0x7ffff52bb4f0) at kernel/qapplication_x11.cpp:375
#32 0x00007f97f30b2c8e in QApplication::x11ProcessEvent (this=0xe08c20, event=0x7ffff52bb4f0) at kernel/qapplication_x11.cpp:3271
#33 0x00007f97f30dbe9c in x11EventSourceDispatch (s=0xe15400, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#34 0x00007f97f1f5f12a in g_main_dispatch (context=0xe14480) at /tmp/buildd/glib2.0-2.22.0/glib/gmain.c:1960
#35 IA__g_main_context_dispatch (context=0xe14480) at /tmp/buildd/glib2.0-2.22.0/glib/gmain.c:2513
#36 0x00007f97f1f62988 in g_main_context_iterate (context=0xe14480, block=1, dispatch=1, self=<value optimized out>) at /tmp/buildd/glib2.0-2.22.0/glib/gmain.c:2591
#37 0x00007f97f1f62b3c in IA__g_main_context_iteration (context=0xe14480, may_block=1) at /tmp/buildd/glib2.0-2.22.0/glib/gmain.c:2654
#38 0x00007f97f50e1bff in QEventDispatcherGlib::processEvents (this=0xe11320, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#39 0x00007f97f30db64f in QGuiEventDispatcherGlib::processEvents (this=0x6c002d00730075, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#40 0x00007f97f50b7de2 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#41 0x00007f97f50b81b4 in QEventLoop::exec (this=0x7ffff52bb820, flags=...) at kernel/qeventloop.cpp:201
#42 0x00007f97f50ba424 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#43 0x00007f97e926526b in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#44 0x0000000000407264 in _start ()

Reported using DrKonqi