Re: Intel's response Linux/MTRR/8GB Memory Support / Why doesn't the kernel realize the BIOS has problems and re-map appropriately?

[Yinghai Lu]

On 6/4/07, Eric W. Biederman <ebiederm@xxxxxxxxxxxx> wrote:
> Exactly, and given that this is a fairly easy thing to do, and that
> occasionally we see systems where this happens (even if their BIOS is
> later fixed).  It is likely worth it for someone to write up the patch
> and that compare MTRRs with available memory, and to complain and
> reserve all memory that MTRRs claim is not write-back.
that is good.
Sometime BIOS can not even keep mtrr to the identical between
different CPU in SMP system.

Or reset mtrr according to e820 table.

YH
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