Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.3
Operating System: Linux 2.6.31.5-105.fc12.x86_64 x86_64
Distribution: "Fedora release 11.92 (Rawhide)"

What I was doing when the application crashed:
plasma crash when If I close more notification(maybe 6) from kpackagekit and then plasma crash thats happening sometimes

 -- Backtrace:
Application: Pracovní plocha Plasma (plasma-desktop), signal: Segmentation fault
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
The current source language is "auto; currently asm".
[Current thread is 1 (Thread 0x7f179b1ce840 (LWP 1223))]

Thread 2 (Thread 0x7f177521a710 (LWP 1224)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f17962eaddb in wait (time=18446744073709551615, this=<value optimized out>) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (time=18446744073709551615, this=<value optimized out>) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f1799a9aaf4 in QHostInfoAgent::run (this=0x2bc4230) at kernel/qhostinfo.cpp:260
#4  0x00007f17962e9d25 in QThreadPrivate::start (arg=0x2bc4230) at thread/qthread_unix.cpp:188
#5  0x00007f179607996a in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007f17956298bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f179b1ce840 (LWP 1223)):
[KCrash Handler]
#5  0x00007f179a80b154 in Plasma::ExtenderItem::group (this=0x2933680) at /usr/src/debug/kdelibs-4.3.2/plasma/extenderitem.cpp:335
#6  0x00007f179a809988 in Plasma::ExtenderGroup::items (this=0x29367a0) at /usr/src/debug/kdelibs-4.3.2/plasma/extendergroup.cpp:92
#7  0x00007f1776d01db3 in Plasma::Theme::font(Plasma::Theme::FontRole) const () at /usr/src/debug/kdelibs-4.3.2/plasma/theme.cpp:615
#8  0x00007f1776d027b0 in Plasma::Theme::font(Plasma::Theme::FontRole) const () at /usr/src/debug/kdelibs-4.3.2/plasma/theme.cpp:615
#9  0x00007f17963e408c in QMetaObject::activate (sender=0x2673c30, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x7fff21eba690) at kernel/qobject.cpp:3112
#10 0x00007f1776d02ef2 in Plasma::Theme::font(Plasma::Theme::FontRole) const () at /usr/src/debug/kdelibs-4.3.2/plasma/theme.cpp:615
#11 0x00007f1776d04154 in Plasma::Theme::font(Plasma::Theme::FontRole) const () at /usr/src/debug/kdelibs-4.3.2/plasma/theme.cpp:615
#12 0x00007f17963e408c in QMetaObject::activate (sender=0x36c4d40, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x7fff21eba7d0) at kernel/qobject.cpp:3112
#13 0x00007f1776d05097 in Plasma::Theme::font(Plasma::Theme::FontRole) const () at /usr/src/debug/kdelibs-4.3.2/plasma/theme.cpp:615
#14 0x00007f1776d0555b in Plasma::Theme::font(Plasma::Theme::FontRole) const () at /usr/src/debug/kdelibs-4.3.2/plasma/theme.cpp:615
#15 0x00007f1776d12d8a in Plasma::Theme::font(Plasma::Theme::FontRole) const () at /usr/src/debug/kdelibs-4.3.2/plasma/theme.cpp:615
#16 0x00007f17963de425 in QObject::event (this=0x36c4d40, e=0x3750450) at kernel/qobject.cpp:1093
#17 0x00007f1796ac765c in QApplicationPrivate::notify_helper (this=0x1e84ac0, receiver=0x36c4d40, e=0x3750450) at kernel/qapplication.cpp:4065
#18 0x00007f1796ace8ce in QApplication::notify (this=<value optimized out>, receiver=0x36c4d40, e=0x3750450) at kernel/qapplication.cpp:4030
#19 0x00007f17993c9786 in KApplication::notify (this=0x1e69580, receiver=0x36c4d40, event=0x3750450) at /usr/src/debug/kdelibs-4.3.2/kdeui/kernel/kapplication.cpp:302
#20 0x00007f17963cee6c in QCoreApplication::notifyInternal (this=0x1e69580, receiver=0x36c4d40, event=0x3750450) at kernel/qcoreapplication.cpp:610
#21 0x00007f17963cfa42 in sendEvent (event=<value optimized out>, receiver=<value optimized out>) at kernel/qcoreapplication.h:213
#22 QCoreApplicationPrivate::sendPostedEvents (event=<value optimized out>, receiver=<value optimized out>) at kernel/qcoreapplication.cpp:1247
#23 0x00007f17963f7573 in sendPostedEvents () at kernel/qcoreapplication.h:218
#24 postEventSourceDispatch () at kernel/qeventdispatcher_glib.cpp:210
#25 0x00007f1791af422e in g_main_dispatch (context=<value optimized out>) at gmain.c:1960
#26 IA__g_main_context_dispatch (context=<value optimized out>) at gmain.c:2513
#27 0x00007f1791af7c18 in g_main_context_iterate (context=0x1e87120, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2591
#28 0x00007f1791af7d3a in IA__g_main_context_iteration (context=0x1e87120, may_block=1) at gmain.c:2654
#29 0x00007f17963f71e6 in QEventDispatcherGlib::processEvents (this=0x1e51230, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#30 0x00007f1796b5a00e in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#31 0x00007f17963cd772 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#32 0x00007f17963cdb44 in QEventLoop::exec (this=0x7fff21ebb060, flags=...) at kernel/qeventloop.cpp:201
#33 0x00007f17963cfcd9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#34 0x00007f179ada7f5f in kdemain () from /usr/lib64/libkdeinit4_plasma-desktop.so
#35 0x00007f1795566b4d in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fff21ebb368) at libc-start.c:220
#36 0x0000000000400779 in _start ()

Reported using DrKonqi