Yes, you can increase it easily. Some systems which don't have IOMMU won't do it, so they have to be handled differently. I think that's why its not enabled in GENERIC.
http://technoninja.blogspot.com/2010/08/amd64-bigmem-openbsd.html On Mon, Mar 28, 2011 at 7:59 AM, Tony Berth <tonybe...@googlemail.com> wrote: > Dear OBSD list members, > > in the meanwhile, are any changes to the following: > > ... > Make amd64 machines be able to use more than 4G ram, and crank the MAXDSIZ > to allow allocations/mmap() up to 8G. > ... > > as this was reported on: > > ... > http://www.openbsd.org/plus44.html > ... > > For example to extend it, let's say, to 16GB? > > Thanks > > Tony
