The problem here is that a segfault in a KDE program, which is not run in a KDE desktop enviroment, is not caught by the KDE or GNOME crash handlers and thus the entire user session simply logs out immediately (which I believe is mediated by X).
I think I'm going to have to file this bug for the KDE crash handler, not X server.
Okay, let me try again.
The problem here is that a segfault in a KDE program, which is not run in a KDE desktop enviroment, is not caught by the KDE or GNOME crash handlers and thus the entire user session simply logs out immediately (which I believe is mediated by X).
I think I'm going to have to file this bug for the KDE crash handler, not X server.