Re: [discuss] Re: x86_64: 2.6.14-rc4 swiotlb broken

[Andi Kleen]

On Monday 17 October 2005 21:04, Linus Torvalds wrote:

> So the only thing that worried me (and made me ask whether there might be
> machines where it doesn't work) is if some machines might have their high
> memory (or no memory at all) on NODE(0). It does sound unlikely, but I
> simple don't know what kind of strange NUMA configs there are out there.

It could happen in VirtualIron (they seem to interleave node 0 over many nodes 
to get equal use of lowmem in 32bit NUMA), but should not in x86-64..
 
> And I'm definitely only interested in machines that are out there, not
> some theoretical issues.

According to Alex W. it will break their sx1000 IA64 boxen.

-Andi (who still thinks it's best to just ignore it or disable Intel NUMA) 
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