I've been using CFS successfully for half a year or more. (I had to switch from userspace NFS to kernel NFS, other than that the install went pretty smooth.)
I did my first apt-get upgrade in a couple of months yesterday and it stopped working. Syslog says Sep 28 09:22:18 chee rpc.mountd: authenticated mount request from localhost:881 for /.cfsfs (/.cfsfs) Sep 28 09:22:18 chee rpc.mountd: getfh failed: Function not implemented Does that mean anything to anyone? Has anyone else had this problem?