Re: [PATCH -v2 5/5] x86: use dmi check to treat disabled cpus ashotplug cpus.

From: H. Peter Anvin
Date: Wed Jan 13 2010 - 17:37:34 EST


On 01/13/2010 02:29 PM, Suresh Siddha wrote:
>>
>> Well, that *is* working around broken code, in this case the broken code
>> is the percpu allocation strategy.
>
> Andi, Recently percpu folks changed the per-cpu static first chunk to
> PMD SIZE right. I think that is what causing all this issue.
>

Please don't tell me we're allocating 2 MB per CPU and throwing away
most of it...

-hpa

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