Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"

[Guenter Roeck]

On Fri, Aug 24, 2018 at 01:16:18PM -0700, Roland Dreier wrote:
> > Sounds great. I'll hold off with sending my RFT series and wait for your
> > test results. I think we'll also need d367cef0a7f0c6 ("x86/mm/pat: Fix
> > boot crash when 1GB pages are not supported by the CPU").
> 
> Sure, makes sense - I don't have any EFI systems with CPUs old enough
> not to support 1G pages but that looks reasonable.  I'll pull that
> into my tree as well.
> 
kernelci reported a crash on a CPU which doesn't support 1G pages.
See https://kernelci.org/boot/id/5b7d39ea59b514c03796ba9c/

Guenter