[CentOS] NFS, acls, proto, and "kernel: svc: unknown version"

Hi all,

1) My NFS3 clients don't display or obey existing non-POSIX ACLs on
files of NFS3-mounted exports.

2) setfacl on the client throws error and fails :
# setfacl -m u:stowler:rw testfile.text
setfacl: testfile.text: Operation not supported

3) at time of client mount the server's /var/log/messages shows
"kernel: svc: unknown version (3)".


Any thoughts greatly appreciated. Will be happy to provide more
configs in addition to below.
Conditions exist whether export is mounted as tcp or udp.


client:
2.6.18-53.1.14.el5 #1 SMP Wed Mar 5 11:36:49 EST 2008 i686 i686 i386 GNU/Linux
nfs-utils.i386                           1:1.0.9-24.el5
nfs-utils-lib.i386                       1.0.8-7.2.z2

server:
2.6.18-53.1.14.el5 #1 SMP Wed Mar 5 11:37:38 EST 2008 x86_64 x86_64
x86_64 GNU/Linux
nfs-utils.x86_64                         1:1.0.9-24.el5
nfs-utils-lib.x86_64                     1.0.8-7.2.z2
nfs-utils-lib.i386                       1.0.8-7.2.z2



##############################
client's /etc/fstab:
server:/home              /home                   nfs     rw,vers=3      0 0
##############################
client's /proc/mounts:
server:/home /home nfs
rw,vers=3,rsize=32768,wsize=32768,hard,proto=tcp,timeo=600,retrans=2,sec=sys,addr=server
0 0
##############################
server's /etc/exports:
/home                                   <NFS
client>(rw,sync,wdelay,no_root_squash,acl)
##############################
server's /etc/hosts.allow:
ALL : <NFS client IP> : ALLOW
##############################
server's /etc/sysconfig/nfs (ports allowed through firewall, too):
STATD_PORT=4000
LOCKD_TCPPORT=4001
LOCKD_UDPPORT=4001
MOUNTD_PORT=4002
RQUOTAD_PORT=4003
##############################


-- 
Stephen Towler