pg 8.0 on freebsd 5.3 install problem

Hi all,

I just installed pg 8.0 on freeBSD 5.3.

All  is ok, but if I try to increase max_connections to 256 (or more) pg
do not starts.

Yes, I readet the docs and I know that I need to increase shared memory
and semaphores.

I recompile my kernel and set :
options         SYSVSHM
options         SHMMAXPGS=16382
options         SHMSEG=9182

options         SYSVSEM
options         SEMMNI=9182
options         SEMMNS=9182
options         SEMMNU=9182
options         SEMMAP=9182


And also after installing the new kernel I got the same error.

Pls., help me to find the values of  semaphors in my kernel.
Exist any tools for this info?

many thanks,
ivan.