Application: cantor (0.5)
KDE Platform Version: 4.12.5
Qt Version: 4.8.5
Operating System: Linux 3.13.9-200.fc20.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:

Trying to figure out reason of not having a python2 icon on available cantor backends, when checking request for Fedora 20 cantor update.

https://bugzilla.redhat.com/show_bug.cgi?id=1095918

I was trying to follow the documented procedure to configure a backend that did not appear in the list of available backends.

The crash can be reproduced every time.

-- Backtrace:
Application: Cantor (cantor), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[KCrash Handler]
#5  0x000000000040bbbb in CantorShell::optionsConfigureKeys() ()
#6  0x0000003f7f198cf8 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib64/libQtCore.so.4
#7  0x00000039d33c3782 in QAction::triggered(bool) () from /lib64/libQtGui.so.4
#8  0x00000039d33c5337 in QAction::activate(QAction::ActionEvent) () from /lib64/libQtGui.so.4
#9  0x00000039d380e2bd in QMenuPrivate::activateCausedStack(QList<QPointer<QWidget> > const&, QAction*, QAction::ActionEvent, bool) () from /lib64/libQtGui.so.4
#10 0x00000039d3812b49 in QMenuPrivate::activateAction(QAction*, QAction::ActionEvent, bool) () from /lib64/libQtGui.so.4
#11 0x00007f3b54cd1bbb in KMenu::mouseReleaseEvent(QMouseEvent*) () from /lib64/libkdeui.so.5
#12 0x00000039d341cc58 in QWidget::event(QEvent*) () from /lib64/libQtGui.so.4
#13 0x00000039d3816b0b in QMenu::event(QEvent*) () from /lib64/libQtGui.so.4
#14 0x00000039d33c9d8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#15 0x00000039d33d0879 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#16 0x00007f3b54c10b0a in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#17 0x0000003f7f18439d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#18 0x00000039d33cffa7 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /lib64/libQtGui.so.4
#19 0x00000039d34459dc in QETWidget::translateMouseEvent(_XEvent const*) () from /lib64/libQtGui.so.4
#20 0x00000039d344411c in QApplication::x11ProcessEvent(_XEvent*) () from /lib64/libQtGui.so.4
#21 0x00000039d346bb24 in x11EventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQtGui.so.4
#22 0x0000003f784492a6 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#23 0x0000003f78449628 in g_main_context_iterate.isra.24 () from /lib64/libglib-2.0.so.0
#24 0x0000003f784496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#25 0x0000003f7f1b2ea5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#26 0x00000039d346bca6 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtGui.so.4
#27 0x0000003f7f182edf in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#28 0x0000003f7f18322d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#29 0x0000003f7f188749 in QCoreApplication::exec() () from /lib64/libQtCore.so.4
#30 0x000000000040a577 in main ()

Reported using DrKonqi