Application that crashed: ark
Version of the application: 2.13
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.3
Operating System: Linux 2.6.31-ARCH x86_64
Distribution: "(none)"

What I was doing when the application crashed:
I was looking the preview of a txt file inside the zip archive

 -- Backtrace:
Application: Ark (ark), signal: Segmentation fault
[KCrash Handler]
#5  0x00007f69cbef4e5f in QWidget::testAttribute_helper(Qt::WidgetAttribute) const () from /usr/lib/libQtGui.so.4
#6  0x00007f69cbeffad5 in QWidget::setAttribute(Qt::WidgetAttribute, bool) () from /usr/lib/libQtGui.so.4
#7  0x00007f69cbf02746 in QWidget::setEnabled(bool) () from /usr/lib/libQtGui.so.4
#8  0x00007f69c30327de in Part::setReadyGui() () from /usr/lib/kde4/libarkpart.so
#9  0x00007f69c3032b33 in Part::slotPreviewExtracted(KJob*) () from /usr/lib/kde4/libarkpart.so
#10 0x00007f69c302bda1 in Part::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/kde4/libarkpart.so
#11 0x00007f69cba41059 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#12 0x00007f69cbeb307c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#13 0x00007f69cbeba34e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#14 0x00007f69ccf71586 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#15 0x00007f69cba31bfc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#16 0x00007f69cba3280a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#17 0x00007f69cba5a583 in ?? () from /usr/lib/libQtCore.so.4
#18 0x00007f69c78de1fe in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#19 0x00007f69c78e1bb8 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#20 0x00007f69c78e1ce0 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#21 0x00007f69cba5a123 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#22 0x00007f69cbf4614e in ?? () from /usr/lib/libQtGui.so.4
#23 0x00007f69cba30532 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#24 0x00007f69cba30904 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#25 0x00007f69cba32ab9 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#26 0x0000000000409946 in _start ()

Reported using DrKonqi