Application that crashed: kontact
Version of the application: 4.3.2
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-16-generic-pae i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
I was moving in trash a bunch of message in a search and a crash occured.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#6  0xb0679584 in ?? () from /usr/lib/libkmailprivate.so.4
#7  0xb0766197 in ?? () from /usr/lib/libkmailprivate.so.4
#8  0xb07785ed in ?? () from /usr/lib/libkmailprivate.so.4
#9  0xb0966e41 in KMMainWidget::slotMsgSelected(KMMessage*) () from /usr/lib/libkmailprivate.so.4
#10 0xb0986f3e in KMMainWidget::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkmailprivate.so.4
#11 0xb65f1263 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#12 0xb65f1ec2 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#13 0xb0661083 in ?? () from /usr/lib/libkmailprivate.so.4
#14 0xb0abce00 in ?? () from /usr/lib/libkmailprivate.so.4
#15 0xb0661a8f in ?? () from /usr/lib/libkmailprivate.so.4
#16 0xb65f1263 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#17 0xb65f1ec2 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#18 0xb06611c3 in ?? () from /usr/lib/libkmailprivate.so.4
#19 0xb0ac4c3f in ?? () from /usr/lib/libkmailprivate.so.4
#20 0xb0b1b209 in ?? () from /usr/lib/libkmailprivate.so.4
#21 0xb06627e4 in ?? () from /usr/lib/libkmailprivate.so.4
#22 0xb65f1263 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#23 0xb65f1ec2 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#24 0xb6fda0b9 in QItemSelectionModel::selectionChanged(QItemSelection const&, QItemSelection const&) () from /usr/lib/libQtGui.so.4
#25 0xb6fdeab8 in QItemSelectionModel::emitSelectionChanged(QItemSelection const&, QItemSelection const&) () from /usr/lib/libQtGui.so.4
#26 0xb6fe1893 in QItemSelectionModel::select(QItemSelection const&, QFlags<QItemSelectionModel::SelectionFlag>) () from /usr/lib/libQtGui.so.4
#27 0xb6fc732c in ?? () from /usr/lib/libQtGui.so.4
#28 0xb6fc7fbd in QTreeView::setSelection(QRect const&, QFlags<QItemSelectionModel::SelectionFlag>) () from /usr/lib/libQtGui.so.4
#29 0xb6f8a55c in QAbstractItemView::mousePressEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#30 0xb6fd03d7 in QTreeView::mousePressEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#31 0xb0b1b630 in ?? () from /usr/lib/libkmailprivate.so.4
#32 0xb6a8cff6 in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#33 0xb6e3c633 in QFrame::event(QEvent*) () from /usr/lib/libQtGui.so.4
#34 0xb6edb494 in QAbstractScrollArea::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#35 0xb6f8f087 in QAbstractItemView::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#36 0xb6fca434 in QTreeView::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#37 0xb6edda95 in ?? () from /usr/lib/libQtGui.so.4
#38 0xb65da83a in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#39 0xb6a37f2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#40 0xb6a40033 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#41 0xb7487bfa in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#42 0xb65db6cb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#43 0xb6a3ef6e in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib/libQtGui.so.4
#44 0xb6aad7c0 in ?? () from /usr/lib/libQtGui.so.4
#45 0xb6aacc4b in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#46 0xb6ad9502 in ?? () from /usr/lib/libQtGui.so.4
#47 0xb48cfe78 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#48 0xb48d3720 in ?? () from /lib/libglib-2.0.so.0
#49 0xb48d3853 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#50 0xb660602c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#51 0xb6ad8be5 in ?? () from /usr/lib/libQtGui.so.4
#52 0xb65d9c79 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#53 0xb65da0ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#54 0xb65dc53f in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#55 0xb6a37dd7 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#56 0x0804b4e6 in _start ()

Reported using DrKonqi