Re: IA64 non-contiguous memory space bugs

From: David Gibson
Date: Tue Feb 21 2006 - 21:24:33 EST


On Tue, Feb 21, 2006 at 04:39:35PM -0800, David S. Miller wrote:
> From: David Gibson <david@xxxxxxxxxxxxxxxxxxxxx>
> Date: Wed, 22 Feb 2006 11:13:59 +1100
>
> > Quite some time ago, I found (by inspection) an ia64 specific bug
> > related to its non-contiguous user address space. I've never done
> > anything about it, because I don't have an ia64 to test on - but
> > somebody should fix it. Recently I've spotted another possible bug,
> > also by inspection - I don't know enough about ia64 to tell if it's a
> > real problem or not.
>
> Good catch David, I'll need to add similar checks on sparc64 as
> we have a 64-bit virtual address space hole on several processors
> there.

Ok, that patch adds all the checks in generic code anyway, so all you
should need for sparc64 is an appropriate REGION_MAX() macro.

--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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