On Wed 16-09-26 15:08:45, David Hildenbrand wrote: > > > > > OK, so apparently there are some BIOSes which abuse this feature to > > mimic a real HW poisoning. This doesn't change the overall picture > > though > > Is this really abusing? We know that a page is shaky and will likely go bad in > the future, For now it is still accessible. Trying to migrate off that page > stop > using it right away sounds pretty logical to me.
Yes, no dispute on that. But we have HW poisoning for exactly that purpose, no? > Now, the weird thing is that for hugetlb we wants a different behavior (keep > using the page and ignore the request to evacuate). Exactly -- Michal Hocko SUSE Labs

