Application: Apper (apper), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007f3d18182581 in KCategorizedView::Private::categoryForIndex(QModelIndex const&) const () from /usr/lib/libkdeui.so.5
#8  0x00007f3d18185f8f in KCategorizedView::visualRect(QModelIndex const&) const () from /usr/lib/libkdeui.so.5
#9  0x00007f3d18187f75 in KCategorizedView::leaveEvent(QEvent*) () from /usr/lib/libkdeui.so.5
#10 0x00007f3d15bdb748 in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#11 0x00007f3d15f9d83e in QFrame::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#12 0x00007f3d16020a33 in QAbstractScrollArea::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#13 0x00007f3d160ba39b in QAbstractItemView::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#14 0x00007f3d15b8848c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#15 0x00007f3d15b8efa8 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#16 0x00007f3d181b01aa in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#17 0x00007f3d1683771d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#18 0x00007f3d15b8dd62 in QApplicationPrivate::dispatchEnterLeave(QWidget*, QWidget*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#19 0x00007f3d15b8e72a in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#20 0x00007f3d15b8ec22 in QApplicationPrivate::sendSyntheticEnterLeave(QWidget*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#21 0x00007f3d15bd7a67 in QWidgetPrivate::hideChildren(bool) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#22 0x00007f3d15bd7a2a in QWidgetPrivate::hideChildren(bool) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#23 0x00007f3d15bd7c47 in QWidgetPrivate::hide_helper() () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#24 0x00007f3d15bdace0 in QWidget::setVisible(bool) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#25 0x00007f3d15bbd0a4 in QStackedLayout::setCurrentIndex(int) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#26 0x00007f3d0366766f in ?? () from /usr/lib/kde4/kcm_apper.so
#27 0x00007f3d03668753 in ?? () from /usr/lib/kde4/kcm_apper.so
#28 0x00007f3d03669575 in ?? () from /usr/lib/kde4/kcm_apper.so
#29 0x00007f3d03669c43 in ?? () from /usr/lib/kde4/kcm_apper.so
#30 0x00007f3d1684cabb in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#31 0x00007f3d15b81ce2 in QAction::triggered(bool) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#32 0x00007f3d15b83867 in QAction::activate(QAction::ActionEvent) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#33 0x00007f3d15bdc1cf in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#34 0x00007f3d15b8848c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#35 0x00007f3d15b906f6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#36 0x00007f3d181b01aa in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#37 0x00007f3d1683771d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#38 0x00007f3d15c2a353 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#39 0x00007f3d15c2a7f2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#40 0x00007f3d15c0419f in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#41 0x00007f3d15c2ced2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#42 0x00007f3d120e9c5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007f3d120e9f48 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f3d120e9ffc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f3d16866d1d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#46 0x00007f3d15c2cf96 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#47 0x00007f3d16836271 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#48 0x00007f3d168365d5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#49 0x00007f3d1683c059 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#50 0x000000000040684b in ?? ()
#51 0x00007f3d146ceb45 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#52 0x0000000000406951 in _start ()