NFS: freeze during copy

[Cheffo]

rvenne at dental-on-line.fr wrote:
> Hi
>
> I try to connect NFS client.
>
> on the server:
> /etc/rc.conf:
> rpcbind_enable="YES"
> nfs_server_enable="YES"
> mountd_flags="-r"
>
> 10029  ??  Ss     0:00.02 rpcbind
> 10031  ??  Is     0:00.03 nfsd: master (nfsd)
> 10032  ??  I      0:00.00 nfsd: server (nfsd)
> 10033  ??  I      0:00.00 nfsd: server (nfsd)
> 10034  ??  I      0:00.00 nfsd: server (nfsd)
> 10035  ??  I      0:00.00 nfsd: server (nfsd)
> 10037  ??  Is     0:00.01 mountd -r
>
> cat /etc/exports
> /usr/data/backup -maproot=admin:wheel 192.168.254.2
>
> client:
> 83  ??  DL     0:00.03 [nfsiod 0]
>   84  ??  DL     0:00.00 [nfsiod 1]
>   85  ??  DL     0:00.00 [nfsiod 2]
>   86  ??  DL     0:00.00 [nfsiod 3]
>
> /etc/rc.conf: nfs_client_enable="YES"
>
> I was able to mount nfs mounting point and to copie 16K of 7G data. 
> and, it goes to freezing. I can't kill neither cp process neither 
> mount unmount nfs (umount command goes freezing too). tcpdump tells me 
> that server doesn't give any response in spite of client's udp queries.
>
> need helps. thx
Not sure that this can help, but do you use pf on client ?
I had a problem before using properly NFS with PF and "scrub in all"
and removing normalizer fix NFS client.
And please do not break threads ;)
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