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

[Andi Kleen]

> So the only safe thing we can do is not use memory that is not
> write-back cached.  That we can positively detect and is a
> conservative action so if anything will work that will.

Jesse wrote such a patch (or rather it limitted end_pfn), but it broke
the X server for so far unknown reasons.

-Andi
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