Do you still maintain the FAQ at nfs.sourceforge.net? In A7: "There are some minor interoperability issues when applications running on clients make use of some of the new features of NFS Version 4 such as mandatory locking, share reservations, and delegations." I'd remove "delegations"--they change the performance (most dramatically if the server has to wait for a lease to time out to allow an open), but should otherwise be transparent to applications. The NFS-related kernel patches supported by Trond Myklebust NFS-related kernel patches supported by Neil Brown links should probably just be removed and replaced by a "linux development" link to linux-nfs.org. --b. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html