vanilla 2.6.18.3 works. Looks like linux-image-2.6.17-10-server 2.6.17-10.33 only have serious problems with dot-file or files in dot directories.
-- 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