I am trying to get a core dump of a running program (PostgreSQL master
process) and I just get a permissions error;

# gcore 728
gcore: ptrace(PT_DUMPCORE) failed: Permission denied

The gcore man page doesn't mention PT_DUMPCORE but I checked the code
and it is correct.  As an added datapoint, killing the process with
SIGABRT also fails to create a core file albeit silently in that case. 
Anyone know what could be happening here or what I should check next?

Thanks.

-- 
D'Arcy J.M. Cain <darcy@NetBSD.org>
http://www.NetBSD.org/