Re: [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:

quoted

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