... btw, I rather imagine that Robert has already noticed this, but OS X (and presumably other BSDen) spells the flag "MAP_ANON" not "MAP_ANONYMOUS". I also find this rather interesting flag there:
MAP_HASSEMAPHORE Notify the kernel that the region may contain sema- phores and that special handling may be necessary. By "semaphore" I suspect they mean "spinlock", so we'd better turn this flag on where it exists. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers