Solaris 5.6 Shared Memory Problem

Hi all
We compiled Postgresql under Solaris 5.6.
.configure+make+make install worked without problem
but
when we try to start postmaster we got a problem about shared memory.
I was wondering if someone on this mailing list knows how to fix this problem without debuggin *all* the postgres.

This is what happens when I start postmaster:

% postmaster -i &
[1] 16136
% IpcMemoryCreate: shmget failed (Invalid argument) key=5432001, size=1073152, permission=600
FATAL 1: ShmemCreate: cannot create region
^C
[1] Done postmaster -i

Thanks in advance.

Carlo Perassi
perassi(at)vlsilab01(dot)polito(dot)it
VLSI Laboratory - Politecnico di Torino
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