I experienced the bug in 2.6.17.1-10.34. On the linux-nfs mailing list, it was suggested that adding no_subtree_check to the options in /etc/exports is a workaround:
http://marc.theaimsgroup.com/?l=linux-nfs&m=116038104221946&w=2 In my situation I was able to do that, and have not seen the error since. Make sure you understand the implications of that option (man 5 exports) for your configuration before you decide to use it. -- Permission Denied on nfs clients for only some files https://launchpad.net/bugs/62308 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs