Description:
An NFS version 4 server can delegate the management of a file to a client. This message indicates that the server is recalling a delegation for another client that conflicts with a request from your client.
This problem is quite normal with NFS version 4, try to set for NFS version 3, it really works. Please don't ask me how to set NFS version to 3 in Release 10, do a google.
Edit /etc/default/nfs and look for the "NFS_CLIENT_VERSMAX" line remove the "'#" from the start of the line and change the "=4" to "=3", then run:
# svcadm restart svc:/network/nfs/client:default
Or add "-o vers=3" to the mount parameters (in automount table or /etc/vfstab) and remake the mount.