Michael Glaesemann <grzm@myrealbox.com> writes:
> A number of times when I've attempted to start the postmaster (using
> pg_ctl start) I've gotten Fatal error messages (usually when I don't
> have the shmmax/shmall settings correct) followed by a success
> message (something like "postmaster sucessfully started").
Unless you use -w, this isn't a bug, it's the expected behavior.
regards, tom lane