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Re: Running pae kernel on non-pae system



On Sun, 24 Feb 2013, Tixy wrote:
> Actually, I just double checked, and my CPU [1] does have PAE after all.
> I was confused because it only has 32-bit physical address size (and so
> doesn't benefit from any 'Extension' to the physical address). 

The Pentium-M does indeed have PAE, and they even have PAT support as well.

Unfortunately, PAT support on the Pentium-M is blacklisted, pending someone
going over all the related errata, and actually checking whether all
Pentium-M have PAT-related errata or not (bad page type aliasing between PAT
and MTRR MSRs is a no-no for Linux).

But it will run PAE kernels just fine.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh


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