Comment 8 for bug 90258

I still do not have any idea how to get a backtrace from processes that are not crashing - ok b-a-s is crashing, but only after a re-login because of conflicts with a newly started instance of it.

Are you sure you can't reproduce it? I've tried it again and again, on a clean account (=default ubuntu-desktop-settings, I've even tried locale en_US) but configured evolution with birthday-calendar (same for a single task or a repeating event). Always when trying to re-login, b-a-s and e-d-s are still running, b-a-s breaking some applets, e-d-s lingering around, because a new instance is opened.

If you still say you cannot reproduce it, I'll try a fresh system-install (I'm updating this computer since breezy, always more or less painless).