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SubjectRe: [PATCH 1/3] x86, hibernate: Fix nosave_regions setup for hibernation
Hi,
On Thu, Aug 30, 2018 at 02:45:26PM +0200, Thomas Gleixner wrote:
> On Mon, 27 Aug 2018, Gu Zhimin wrote:
> >
> > Fix this problem by changing pfn limit from max_low_pfn to max_pfn.
> > This issue should also exist on 64bits systems, if there are reserved
> > regions above 4GB.
>
> Should? Can we please have facts and not some half baken assumptions?
>
> On 64bit max_low_pfn is the same as max_pfn. See init_mem_mapping().
>
Thanks for pointing this out, we've overlooked the reassignment of max_low_pfn,
but just take a glance within setup_arch().
Best,
Yu

> Thanks,
>
> tglx

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