[coreboot] Question about STACK_SIZE

[Marc Jones]

On Thu, May 2, 2013 at 12:22 PM, Stefan Reinauer
<stefan.reinauer at coreboot.org> wrote:
> * Aaron Durbin <adurbin at google.com> [130502 17:39]:
>> OK. Thanks for the info. That does make for some huge memory
>> footprints on the AMD machines with a large number of CONFIG_MAX_CPUS.
>> I'd be curious to know why the BSP for the AMD code requires so much
>> while in ramstage.
>>
>> -Aaron
>
> One of the majore things needed on the BSP used to be lzma decompression
> which put a 16K array on the stack. We fixed this a while ago, bringing
> down stack usage on our Intel based boards to about 1K (and giving each
> core a 4K stack)
>
> We fixed the issue by putting that big array in the heap instead. Maybe
> we can fix the AMD code in the same way.
>
> I would like to see some actual stack usage data first though
>
> Stefan
>

I agree. Can we get a list of boards (I am busy and lazy). We probably
have some of the systems at Sage.

Marc


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