Application that crashed: software-properties-kde
Version of the application: 0.64
KDE Version: 4.2.98 (KDE 4.2.98 (KDE 4.3 RC3))
Qt Version: 4.5.2
Operating System: Linux 2.6.28-13-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
I was working in KPACKAGEKIT modificating the source list, when this bug appeared

 -- Backtrace:
Application: Software Sources (software-properties-kde), signal: Segmentation fault
[KCrash Handler]
#5  0xb6bbb020 in QTreeWidgetItem::setData (this=0x95ea858, column=0, role=10, value=@0xbf9a51a0) at itemviews/qtreewidget.cpp:1750
#6  0xb6fdf205 in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#7  0xb6bb4a6f in QTreeModel::setData (this=0x95dd2e0, index=@0xbf9a52ac, value=@0xbf9a51a0, role=10) at itemviews/qtreewidget.cpp:388
#8  0xb6beecfd in QStyledItemDelegate::editorEvent (this=0x95f51f8, event=0xbf9a5d58, model=0x95dd2e0, option=@0xbf9a521c, index=@0xbf9a52ac) at itemviews/qstyleditemdelegate.cpp:757
#9  0xb6b441d6 in QAbstractItemViewPrivate::sendDelegateEvent (this=0x9633ba8, index=@0x9507818, event=0xbf9a5d58) at itemviews/qabstractitemview.cpp:3845
#10 0xb6b4448b in QAbstractItemView::edit (this=0x96335c8, index=@0x9507818, trigger=QAbstractItemView::NoEditTriggers, event=0xbf9a5d58) at itemviews/qabstractitemview.cpp:2327
#11 0xb6fd4be4 in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#12 0xb6b44774 in QAbstractItemView::mouseReleaseEvent (this=0x96335c8, event=0xbf9a5d58) at itemviews/qabstractitemview.cpp:1652
#13 0xb6b8782c in QTreeView::mouseReleaseEvent (this=0x96335c8, event=0xbf9a5d58) at itemviews/qtreeview.cpp:1796
#14 0xb6fe1768 in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#15 0xb6643973 in QWidget::event (this=0x96335c8, event=0xbf9a5d58) at kernel/qwidget.cpp:7549
#16 0xb69f4a53 in QFrame::event (this=0x96335c8, e=0xbf9a5d58) at widgets/qframe.cpp:559
#17 0xb6a94c2f in QAbstractScrollArea::viewportEvent (this=0x96335c8, e=0x1) at widgets/qabstractscrollarea.cpp:962
#18 0xb6b474a7 in QAbstractItemView::viewportEvent (this=0x96335c8, event=0xbf9a5d58) at itemviews/qabstractitemview.cpp:1476
#19 0xb6b81ff6 in QTreeView::viewportEvent (this=0x96335c8, event=0xbf9a5d58) at itemviews/qtreeview.cpp:1266
#20 0xb6fbbc6a in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#21 0xb6a97235 in QAbstractScrollAreaFilter::eventFilter (this=0x96028f8, o=0x9626fb0, e=0xbf9a5d58) at widgets/qabstractscrollarea_p.h:100
#22 0xb7709dea in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x949a960, receiver=0x9626fb0, event=0xbf9a5d58) at kernel/qcoreapplication.cpp:726
#23 0xb65ecd1a in QApplicationPrivate::notify_helper (this=0x949a960, receiver=0x9626fb0, e=0xbf9a5d58) at kernel/qapplication.cpp:4052
#24 0xb65f59b1 in QApplication::notify (this=0x949a878, receiver=0x9626fb0, e=0xbf9a5d58) at kernel/qapplication.cpp:3758
#25 0xb50645cd in KApplication::notify (this=0x949a878, receiver=0x9626fb0, event=0xbf9a5d58) at /build/buildd/kde4libs-4.2.98a/kdeui/kernel/kapplication.cpp:302
#26 0xb5634086 in sipKApplication::notify () from /usr/lib/python2.6/dist-packages/PyKDE4/kdeui.so
#27 0xb770abcb in QCoreApplication::notifyInternal (this=0x949a878, receiver=0x9626fb0, event=0xbf9a5d58) at kernel/qcoreapplication.cpp:610
#28 0xb65f4a1e in QApplicationPrivate::sendMouseEvent (receiver=0x9626fb0, event=0xbf9a5d58, alienWidget=0x9626fb0, nativeWidget=0x95c1288, buttonDown=0xb6e6eaa0, lastMouseReceiver=@0xb6e6eaa4)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#29 0xb6664cce in QETWidget::translateMouseEvent (this=0x95c1288, event=0xbf9a73ec) at kernel/qapplication_x11.cpp:4409
#30 0xb6664085 in QApplication::x11ProcessEvent (this=0x949a878, event=0xbf9a73ec) at kernel/qapplication_x11.cpp:3428
#31 0xb668f37a in x11EventSourceDispatch (s=0x949b770, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#32 0xb753fb88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#33 0xb75430eb in ?? () from /usr/lib/libglib-2.0.so.0
#34 0xb7543268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#35 0xb77362f8 in QEventDispatcherGlib::processEvents (this=0x91e4288, flags={i = -1080396376}) at kernel/qeventdispatcher_glib.cpp:327
#36 0xb668ea75 in QGuiEventDispatcherGlib::processEvents (this=0x91e4288, flags={i = -1080396328}) at kernel/qguieventdispatcher_glib.cpp:202
#37 0xb77091fa in QEventLoop::processEvents (this=0xbf9a7650, flags={i = -1080396264}) at kernel/qeventloop.cpp:149
#38 0xb7709642 in QEventLoop::exec (this=0xbf9a7650, flags={i = -1080396200}) at kernel/qeventloop.cpp:201
#39 0xb770bae9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#40 0xb65ecbb7 in QApplication::exec () at kernel/qapplication.cpp:3525
#41 0xb72b2ef6 in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#42 0x080de562 in PyEval_EvalFrameEx ()
#43 0x080df587 in PyEval_EvalFrameEx ()
#44 0x080e00b8 in PyEval_EvalCodeEx ()
#45 0x080e0217 in PyEval_EvalCode ()
#46 0x080fe0e1 in PyRun_FileExFlags ()
#47 0x080fe43a in PyRun_SimpleFileExFlags ()
#48 0x0805c882 in Py_Main ()
#49 0x0805b972 in main ()

Reported using DrKonqi