[SOLVED] Can't log into Gnome as a certain user

[mqduck]

I let my system run completely out of disk space. I have a big problem now (even after clearing space). When I try to log into Gnome as my normal user, I just see the desktop background and my cursor spins endlessly. I noticed that nautilus seems to be having issues, as it's starting over and over (I know because its PID keeps changing). I'm able to start Gnome as root just fine. Anyone have any idea what the issue could be?

EDIT: I have a whole bunch of lines like this in /var/log/messages:

[mqduck]

I solved my problem. Through a ton of trial and error, I discovered that (a presumably corrupted) ~/.local/share/mime/mime.cache was the culprit. Removing it got rid of the problem. A bit of googling informed me that it's a cache of the other files in that directory, and a quick 'update-mime-database ~/.local/share/mime/mime.cache' restored it. I probably could have done that without deleting the file first, come to think of it. But whatever--I'm happy now.