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SubjectRe: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"
On Fri, Aug 24, 2018 at 10:08:28AM -0700, Roland Dreier wrote:
> > See
> > <https://lore.kernel.org/lkml/1512686629.18523.217.camel@codethink.co.uk/T/#u>.
>
> Thanks! I'm not using SGI UV and I'm not using kexec, so I guess I
> sidestepped most of those issues. Greg, I think we need to unrevert
> the cpa->pfn change (otherwise the L1TF fix probably gets pretty
> messy) and I guess pull in the other patches that Ben mentions.

Ok, so what patch should be reverted? I'm seeing other reports of
problems all around this same area, but I can't figure out exactly what
to do.

Guenter, any ideas?

thanks,

greg k-h

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