OpenSolaris

1. On a snv_76 and later nfs4 server, create a new file on a local nfs shared
   filesystem:
    nfs4server% rm foobar
    nfs4server% date > foobar

2. On an nfs4 client, first read the "foobar" file from the nfs4 server
   that was created in step 1., then change the timestamps on the file:

    nfs4client% cat foobar
    Thu Jan  3 17:24:29 CET 2008
    nfs4client% time touch -t 01011200 foobar
    0.00u 0.00s 3:00.10 0.0%

    Note that the touch command is stuck for 3 minutes until the
    command prompt returns.  While touch is stuck, the nfs4 client
    gets "NFS server nfs4server not responding; still trying" messages
    logged to /var/adm/messages.

If this problem is blocking something, you can always turn off delegation.

N/A