Had an ongoing issue with Mac clients constantly popping “Server Disconnected” erorrs when they’ve mounted and NFS volume. This may be specifc to NFSv4, I couldn’t find a way to test.

Regardless, mounting the volume with mount -o nolocks,nosuid [server]:/path/to/export /local/mountpoint worked. I added this to /etc/nfs.conf as a workaround. I wonder if I could configure this for a specific NFS server, rather then globally.

#
# nfs.conf: the NFS configuration file
#
nfs.client.mount.options=nolocks,nosuid