[coreboot] Fam10 breakage

Myles Watson mylesgw at gmail.com
Wed Feb 24 23:48:24 CET 2010


On Wed, Feb 24, 2010 at 3:02 PM, Myles Watson <mylesgw at gmail.com> wrote:

>
>
> On Wed, Feb 24, 2010 at 2:34 PM, Myles Watson <mylesgw at gmail.com> wrote:
>
>>
>>
>> On Wed, Feb 24, 2010 at 2:27 PM, Myles Watson <mylesgw at gmail.com> wrote:
>>
>>> Rev 5132 works for me on SimNOW with 1 fam10 processor.
>>>
>>> Current head gets stuck in an infinite loop setting fixed MTRRs.
>>>
>>> Any clues while I'm bisecting?
>>>
>> So far the only difference before the failure is the location of the CBFS
>> header:
>> Check CBFS header at fffeffe0 (working)
>> Check CBFS header at ffffff68a (broken)
>>
>
> That's not it, because that changes later.
>
> Rev 5135 works Rev 5139 is broken.
>
> Rev 5136-5138 don't build.  Rev 5136 is pretty big, and I don't see
> anything that's obviously related to MTRRs.
>
Interestingly enough, 5150 fixes it.  Then 5152 breaks it a different way.

Since the commit message from 5152 is:

     Remove nonsensical wrapper for function in
     PS/2 keyboard API.

I guess it's probably some kind of stack corruption.  Something makes it
very fragile.

Suggestions welcome.

Thanks,
Myles
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