On 09/10/2014 12:30 PM, Toshi Kani wrote:
> 
> When WT is unavailable due to the PAT errata, it does not fail but gets
> redirected to UC-.  Similarly, when PAT is disabled, WT gets redirected
> to UC- as well.
> 

But on pre-PAT hardware you can still do WT.

        -hpa

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