I believe everyone is barking at the
wrong tree. NFS is merely the carrier
of this particluar disease.

The Dell Dual Xeon under Linux has problems
with every Gbit card I've used, either internal
MB based or PCI Intel or Sysconnect.

It gives checksum errors, hangs the box,
kills the associated process, corrupts the
data, etc, etc, etc.

We've use the variety of Intel drivers,
TIGON drivers, Broadcom drivers, etc.

RH just released a kernel update that
solved the EXT3 wierd mount last second
non-flush write bug, and snuck in a TIGON
driver fix that says will stop it from
hanging.

I've started working with a dual Xeon IBM
box. If this doesn't have the same problems,
I'm killing the Dells and replacing them
with IBMs