Re: [PATCH v3] mm/memory-failure: Support disabling soft offline for HugeTLB pages
From: David Hildenbrand (Arm)
Date: Wed Sep 16 2026 - 09:34:36 EST
On 9/16/26 15:19, Michal Hocko wrote:
> 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?
Well, that tells you that the page content is effectively gone and should be
tried to be recovered / migrated away. Unless I am messing up terminology here.
--
Cheers,
David