Solaris 10 kernel tuning query

Hello,

I'm attempting to increase a kernel parameter on the fly using prctl and its
failing with the below error message. Can anyone advise on what I'm doing
wrong and how to fix this issue?

id -p
uid=400(arbor) gid=200(arboradm) projid=3(default)

fpfeuska% prctl -n project.max-msg-ids -i project 3
project: 3: default
NAME    PRIVILEGE       VALUE    FLAG   ACTION
RECIPIENT
project.max-msg-ids
        privileged        128       -   deny
-
        system          16.8M     max   deny
-

fpfeuska% prctl -n project.max-msg-ids -r -v 10k -i project 3

7953:   csh
prctl: cannot set process privileges for pid 7953: Not owner

cheers

nick

________________________________
"This e-mail message may contain confidential, commercial or privileged
information that constitutes proprietary information of Comverse Technology or
its subsidiaries. If you are not the intended recipient of this message, you
are hereby notified that any review, use or distribution of this information
is absolutely prohibited and we request that you delete all copies and contact
us by e-mailing to: [email protected]. Thank You."