Re: [RFC][PATCH] Randomize kernel base address on boot

[H. Peter Anvin]

On 05/29/2011 05:47 AM, Ingo Molnar wrote:
> 
> Do you mean we'd not start at a 2MB boundary and thus would waste on 
> average an about 0.125 worth of huge-TLB cache entry?
> 
> That does not look like a very big issue to me - but maybe i'm 
> missing something and you mean something else.
> 

The problem is that because of the misalignment, and whatever falls on
the other side of that memory boundary we might end up having to
fracture the 2 MB page into 4K pages.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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