Re: [PATCH v4 0/7] Poisoned memory recovery on reboot

[David Hildenbrand]

On 14.12.24 14:45, “William Roche wrote:
> From: William Roche <willia.roche@oracle.com>
>
> Hello David,

Hi!

Let me start reviewing today a bit (it's already late, and I'll continue 
tomorrow.

> Here is an new version of our code and an updated description of the
> patch set:
>   ---> This set of patches fixes several problems with hardware 
memory errors
> impacting hugetlbfs memory backed VMs and the generic memory recovery
> on VM reset.
> When using hugetlbfs large pages, any large page location being impacted
> by an HW memory error results in poisoning the entire page, suddenly
> making a large chunk of the VM memory unusable.

I assume the problem that will remain is that a running VM will still 
lose that chunk (yet, we only indicate a single 4k page to the guest via 
an injected MCE :( ).

So the biggest point of this patch set is really the recovery on reboot.

And as I am writing this, I realize that the series subject correctly 
reflects that :)

--
Cheers,

David / dhildenb