Re: [PATCH] [1/16] HWPOISON: Add page flag for poisoned pages
From: Larry H.
Date: Wed May 27 2009 - 16:37:19 EST
On 22:12 Wed 27 May , Andi Kleen wrote:
> Hardware poisoned pages need special handling in the VM and shouldn't be
> touched again. This requires a new page flag. Define it here.
> The page flags wars seem to be over, so it shouldn't be a problem
> to get a new one.
I gave a look to your patchset and this is yet another case in which the
only way to truly control the allocation/release behavior at low level
(without intrusive approaches) is to -indeed- use a page flag.
If this gets merged I would like to ask Andrew and Christopher to look
at my recent memory sanitization patches. It seems the opinion about
adding new page flags isn't the same for everyone here.
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