Hey, On Tuesday 30 October 2012 20:33:18 Andres Freund wrote: > +#ifdef MAP_HUGETLB > +# ifdef __ia64__ > +# define PG_HUGETLB_BASE_ADDR (void *)(0x8000000000000000UL) > +# define PG_MAP_HUGETLB (MAP_HUGETLB|MAP_FIXED) > +# else > > Not your fault, but that looks rather strange to me. The level of > documentation around the requirement of using MAP_FIXED is subpar...
Ok, after further reading I think with MAP_FIXED one has to „generate“ SHM segment addresses hisself. So 0x8000000000000000UL would just be one possible location for a hugepage. Since this feature is not used in PG for now, the code should work. Could someone with access to a ia64 architecture verify it? Greetings, CK -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
