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SubjectRe: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU
On 12/19/2012 04:29 PM, Jacob Shin wrote:
> On Wed, Dec 19, 2012 at 04:24:09PM -0800, H. Peter Anvin wrote:
>> On 12/19/2012 04:07 PM, Jacob Shin wrote:
>>>
>>> From what I remember, accessing memory around the memory hole (not
>>> just the HT hole, but e038000000 ~ 10000000000 on our mentioned system
>>> ) generated prefetches because the memory hole was marked as WB in PAT.
>>>
>>> I'll take a look at the system again, try the blanket MTRR covering
>>> 0xe000000000 ~ 1TB, and talk to our BIOS guys.
>>>
>>
>> Yes, but do they all #MC (as opposed to, say, fetching all FFs)?
>
> Yes, MCE every time and it was fatal.
>

So regardless of address. Bother.

-hpa




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