On 05/26/2017 11:24 AM, hpa@xxxxxxxxx wrote: > The only case where that even has any utility is for an application > to want more than 128 TiB address space on a machine with no more > than 64 TiB of RAM. It is kind of a narrow use case, I think. Doesn't more address space increase the effectiveness of ASLR? I thought KASLR, especially, was limited in its effectiveness because of a lack of address space.