Re: [linux-drivers-review] [PATCH] x86/mm: Fix boot with some memory above MAXMEM

On 5/11/20 10:04 AM, Kirill A. Shutemov wrote:

• if (not_addressable) {

• pr_err("%lldMB of physical memory is not addressable in the paging mode\n",
  

•        not_addressable >> 20);
  

• if (!pgtable_l5_enabled())
  

• 	pr_err("Consider enabling 5-level paging\n");
  

• }

Looks sane to me. Definitely good enough until we get the first bug reports from an end user about how they screwed this up in practice.

For the aggregate patch:

Reviewed-by: Dave Hansen dave.hansen@intel.com

BTW, it's a shame that 0day and friends can't find stuff like this. I have the feeling we have more bugs like this coming.