psql-mail(at)freeuk(dot)com writes:
> I have set "ulimit -c unlimited" as you sugested,
> i then copied postmaster to /home/postgres
> and ran it as postgres from there...
> but still no core files. Where should they appear?
In $PGDATA/base/yourdbnumber/core (under some OSes the file name might
be "core" plus a number).
regards, tom lane