On Fri, Mar 06, 2015 at 02:11:18AM +0000, Zou, Nanhai wrote:
> I don't understand why we need a complex solution when there is already a 
> simple solution with patch.
> What is the drawback of reserving page 0?
> Before we going to that complex solution, could we just reserve page zero?
> It is simple and straight forward.

Because it is a nonsense ABI constraint. If you want the equivalent
of MAP_FIXED, we should give you MAP_FIXED.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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