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-desktop-1mnb i686
Distribution: "Mandriva Linux 2010.0"

What I was doing when the application crashed:
not found

 -- Backtrace:
Application: Espaço de trabalho do Plasma (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb560a6d0 (LWP 22153))]

Thread 2 (Thread 0xa8379b70 (LWP 22156)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb74899e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i686/libpthread.so.0
#2  0xb74e4fb0 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#3  0xb5c32194 in ?? () from /usr/lib/libQtNetwork.so.4
#4  0xb74e3e83 in ?? () from /usr/lib/libQtCore.so.4
#5  0xb7485885 in start_thread () from /lib/i686/libpthread.so.0
#6  0xb5ed757e in clone () from /lib/i686/libc.so.6

Thread 1 (Thread 0xb560a6d0 (LWP 22153)):
[KCrash Handler]
#6  0xb677ea54 in QGraphicsItem::parentItem () from /usr/lib/libQtGui.so.4
#7  0xb67d0d00 in ?? () from /usr/lib/libQtGui.so.4
#8  0xb67ed1f9 in QGraphicsGridLayout::addItem () from /usr/lib/libQtGui.so.4
#9  0xa845b944 in ?? () from /usr/lib/kde4/plasma_applet_tasks.so
#10 0xa845be89 in ?? () from /usr/lib/kde4/plasma_applet_tasks.so
#11 0xa845bf42 in ?? () from /usr/lib/kde4/plasma_applet_tasks.so
#12 0xa84688e9 in ?? () from /usr/lib/kde4/plasma_applet_tasks.so
#13 0xa8469e35 in ?? () from /usr/lib/kde4/plasma_applet_tasks.so
#14 0xb75f1144 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#15 0xb75f1e65 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#16 0xa849e325 in TaskManager::TaskGroup::itemRemoved () from /usr/lib/libtaskmanager.so.4
#17 0xa849ebce in TaskManager::TaskGroup::remove () from /usr/lib/libtaskmanager.so.4
#18 0xa84855b7 in ?? () from /usr/lib/libtaskmanager.so.4
#19 0xa848747b in TaskManager::GroupManager::qt_metacall () from /usr/lib/libtaskmanager.so.4
#20 0xb75f1144 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#21 0xb75f1e65 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#22 0xa84a1fa5 in TaskManager::TaskManager::taskRemoved () from /usr/lib/libtaskmanager.so.4
#23 0xa84a3e56 in TaskManager::TaskManager::windowRemoved () from /usr/lib/libtaskmanager.so.4
#24 0xa84a58c5 in TaskManager::TaskManager::qt_metacall () from /usr/lib/libtaskmanager.so.4
#25 0xb75f1144 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#26 0xb75f1e65 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#27 0xb6d19545 in KWindowSystem::windowRemoved () from /usr/lib/libkdeui.so.5
#28 0xb6d1cbba in ?? () from /usr/lib/libkdeui.so.5
#29 0xb6d2b8ef in NETRootInfo::update () from /usr/lib/libkdeui.so.5
#30 0xb6d2c595 in NETRootInfo::event () from /usr/lib/libkdeui.so.5
#31 0xb6d1ce8b in ?? () from /usr/lib/libkdeui.so.5
#32 0xb6bc1d07 in KApplication::x11EventFilter () from /usr/lib/libkdeui.so.5
#33 0xb3e15953 in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#34 0xb61c5951 in ?? () from /usr/lib/libQtGui.so.4
#35 0xb61d73ff in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#36 0xb61d989e in ?? () from /usr/lib/libQtGui.so.4
#37 0xb61d8aee in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#38 0xb6203d88 in ?? () from /usr/lib/libQtGui.so.4
#39 0xb5d50b92 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#40 0xb5d54468 in ?? () from /usr/lib/libglib-2.0.so.0
#41 0xb5d5458e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#42 0xb76068f1 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#43 0xb62034ba in ?? () from /usr/lib/libQtGui.so.4
#44 0xb75d926d in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#45 0xb75d96b9 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#46 0xb75dbb50 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#47 0xb6161504 in QApplication::exec () from /usr/lib/libQtGui.so.4
#48 0xb3dffbd9 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#49 0x0804da54 in _start ()

Reported using DrKonqi