Re: [RFT] x86 acpi: normalize segment descriptor register on resume

H. Peter Anvin
2008-07-01T17:29:45Z

Andi Kleen wrote:
> H. Peter Anvin wrote:
>> Andi Kleen wrote:
>>>> It still seems incredibly risky to push this for 2.6.26, especially
>>>> given the Elan revelation.
>>> Do Elans even support S3?
>> I don't know if they do, but I don't know offhand the extent of machines
>> that may have that problem, especially since Intel now document it as
>> "failures are readily seen".
>
> What document is that exactly?
>

Per Jeremy's recent email, volume 3a, section 8.9.1:

> Random failures can occur if other instructions exist between steps
> 3 and 4 above. Failures will be readily seen in some situations,
> such as when instructions that reference memory are inserted between
> steps 3 and 4 while in system management mode.

-hpa