from nfsv4-mailing list I found some postings by David Howells about FS- Cache, and this patch in particular sounds worrisome:
[PATCH 18/30] NFS: Share NFS superblocks per-protocol per-server per-FSID http://linux-nfs.org/pipermail/nfsv4/2006-July/004730.html -- wrong access rights on NFS mount https://launchpad.net/bugs/75729 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
