Re: [PATCH]: Fix MTRR handling on HT CPUs (improved)

[Alan Cox]

> I strongly suspected somebody else must have hit this problem before, but
> intensive research did show up nothing. Also my first post on LK
> received no "hey, that's old stuff" answer. So here I go.

A tiny patch was posted about 4-6 months ago

The patch is total overkill. Just remove the error reporting if the right
firmware was already loaded. You've written a fixup wrapper around a 
rather nonsensical erorr check for an existing non-error.

The same will occur with CPU hot plugging in the future as well as ACPI
power saving sometimes and in those cases the patch you posted doesn't
help anyway.

Alan