Comment # 4 on bug 1003822 from Dominique Leuenberger

(In reply to Olav Reinert from comment #3)
> Created attachment 697076 [details]
> Journal of a GNOME login attempt

Thanks for the log; that seems to help more.

>From what I gather, shell dies because one of its mandatory panel items
(shell-calendar) is not coming up properly

from what I gather, you can try:

rm -rf /home/olav/.cache/evolution

(It's cache data, so will be re-constructed; feel free to make a backup though)

If that helps, then we have some lead at least; of course this should not stop
shell from working though