On Fri, Jun 9, 2017 at 6:49 PM, Michal Hocko <mho...@kernel.org> wrote: > On Fri 09-06-17 17:51:24, Wei Yang wrote: >> Hi, Michal >> >> I am not that familiar with hotplug and trying to catch up the issue >> and your solution. >> >> One potential issue I found is we don't check the physical boundary >> when add_memory_resource(). >> >> For example, on x86-64, only 64T physical memory is supported currently. >> Looks it is expanded after 5-level pagetable is introduced. While there is >> still some limitations on this. But we don't check the boundary I think. >> >> During the bootup, this is ensured by the max_pfn which is guaranteed to >> be under MAX_ARCH_PFN. I don't see some limitation on this when doing >> hotplug. > > This might be true and I would have to double check but this rework > doesn't change anything in that regards. Or do I miss something?
Ah, yes, I believe your patch set don't touch this area. This is just related to hotplug. > -- > Michal Hocko > SUSE Labs
