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SubjectRe: patch disabling use of PSE on Atom CPUs with a certain erratum
On 10/07/2010 07:52 AM, Jan Beulich wrote:
>>>> On 07.10.10 at 16:08, "H. Peter Anvin" <hpa@zytor.com> wrote:
>> On 10/07/2010 07:01 AM, Jan Beulich wrote:
>>>>
>>>> Those Atoms don't have 64-bit support.
>>>
>>> That's different from what I found looking around on the web.
>>>
>>
>> Do tell...
>
> E.g.
>
> http://en.wikipedia.org/wiki/List_of_Intel_Atom_microprocessors
>
> in particular the Atom 230 and Atom 330 (which to my reading match
> the spec updates for the 200 and 300 series, which in turn exhibit
> the erratum in question).
>

You're right... I misremembered. The question is what to do at this
point, since we're already in trouble. A possible failure on startup
seems better than a state in which we could get data corruption at
almost any time.

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.



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