>NFS expects a reliable protocol like TCP, and PPP supplies a protocol
>that may require retransmit by the higher level layer.  Of course,
>I don't even know for sure that that is true. (about either one)

Actually, "normal" NFS uses UDP.  It really doesn't matter, as PPP is just
IP over serial, and TCP will automatically retransmit dropped packets.  NFS
knows to retransmit dropped packets as well.

Just curious; what is your maxusers set to be?  NOBUF sounds like a resource
is exhausted.

--Ken