I maintain 2 wordpress blogs, http://evert.meulie.net/ & http://leif.digre.com/. A few days ago I noticed that the feed of http://leif.digre.com/ , located at http://leif.digre.com/feed/ gives a 404. It was worked fine in the past. I have tried disabling all plugins, but that did not help.
Both wordpress sites use the same theme.