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 2.6.28-gentoo-r2 x86_64

What I was doing when the application crashed:
When I open an application plasma crashes (does not happen all the times)
I searched for some duplicates but couldn't find one with the same stacktrace so I'm reporting it here.

 -- Backtrace:
Application: Espace de travail Plasma (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 3925)]

Thread 2 (Thread 0x41028950 (LWP 3928)):
#0  0x00007f90e2ee29b9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f90e314f8c9 in QWaitCondition::wait () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007f90e1db05f4 in ?? () from /usr/lib64/qt4/libQtNetwork.so.4
#3  0x00007f90e314eb34 in ?? () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007f90e2ede097 in start_thread () from /lib/libpthread.so.0
#5  0x00007f90dfb35cad in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f90e36cd750 (LWP 3925)):
[KCrash Handler]
#5  0x00007f90c087a6de in AbstractTaskItem::basicPreferredSize () from /usr/lib64/kde4/plasma_applet_tasks.so
#6  0x00007f90c0876d42 in TaskItemLayout::maximumRows () from /usr/lib64/kde4/plasma_applet_tasks.so
#7  0x00007f90c087f3c7 in TaskGroupItem::optimumCapacity () from /usr/lib64/kde4/plasma_applet_tasks.so
#8  0x00007f90c0872660 in Tasks::adjustGroupingStrategy () from /usr/lib64/kde4/plasma_applet_tasks.so
#9  0x00007f90c0872878 in Tasks::constraintsEvent () from /usr/lib64/kde4/plasma_applet_tasks.so
#10 0x00007f90d5d4e7d9 in Plasma::Applet::flushPendingConstraintsEvents () from /usr/lib64/libplasma.so.3
#11 0x00007f90d5d4ee25 in Plasma::Applet::timerEvent () from /usr/lib64/libplasma.so.3
#12 0x00007f90e3233033 in QObject::event () from /usr/lib64/qt4/libQtCore.so.4
#13 0x00007f90e0c6483b in QGraphicsWidget::event () from /usr/lib64/qt4/libQtGui.so.4
#14 0x00007f90e06fac1d in QApplicationPrivate::notify_helper () from /usr/lib64/qt4/libQtGui.so.4
#15 0x00007f90e07026fa in QApplication::notify () from /usr/lib64/qt4/libQtGui.so.4
#16 0x00007f90e16feeab in KApplication::notify () from /usr/lib64/libkdeui.so.5
#17 0x00007f90e322454c in QCoreApplication::notifyInternal () from /usr/lib64/qt4/libQtCore.so.4
#18 0x00007f90e324d136 in ?? () from /usr/lib64/qt4/libQtCore.so.4
#19 0x00007f90e3249aed in ?? () from /usr/lib64/qt4/libQtCore.so.4
#20 0x00007f90df1a28db in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#21 0x00007f90df1a609d in ?? () from /usr/lib/libglib-2.0.so.0
#22 0x00007f90df1a625b in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#23 0x00007f90e3249a4f in QEventDispatcherGlib::processEvents () from /usr/lib64/qt4/libQtCore.so.4
#24 0x00007f90e07817ff in ?? () from /usr/lib64/qt4/libQtGui.so.4
#25 0x00007f90e3222ee2 in QEventLoop::processEvents () from /usr/lib64/qt4/libQtCore.so.4
#26 0x00007f90e322307c in QEventLoop::exec () from /usr/lib64/qt4/libQtCore.so.4
#27 0x00007f90e322514c in QCoreApplication::exec () from /usr/lib64/qt4/libQtCore.so.4
#28 0x00007f90d24981bb in kdemain () from /usr/lib64/libkdeinit4_plasma-desktop.so
#29 0x000000000040773f in _start ()

Reported using DrKonqi