I just wanted to answer an assignment and noticed that cyclic references kill Nautilus.
What I did
mkdir testFolder
cd testFolder
touch testFile.txt
ln -s testFile.txt mySoftlink
rm testFile.txt
ln -s mySoftlink testFile.txt
ls -l
total 0
lrwxrwxrwx 1 moose moose 10 2013-01-20 21:20 myfile.txt -> mySoftLink
lrwxrwxrwx 1 moose moose 10 2013-01-20 21:18 mySoftLink -> myfile.txt
Those two softlinks refer to each other. Now try to open this folder with Nautilus:
nautilus /home/moose/Desktop/testFolder/
Nautilus opens and instantly closes again.
My Nautilus
I use Ubuntu 10.04.4 LTS with Nautilus 2.30.1.
Bug report?
I know, the current version of Nautilus is 3.6.1, but how often do you find a bug which is so easy to reproduce?
The Nautilus Bugtracker is here, but where would you look for the bug?