Re: [Xen-ia64-devel] sparsemem/discontig?

[Tristan Gingold <Tristan.Gingold@xxxxxxxx>]

Le Jeudi 28 Septembre 2006 13:53, Jes Sorensen a écrit :
> Tristan Gingold wrote:
> > Changing the physical loading address shouldn't that hard.
> >
> > I'd suggest you *not* working on relocation yet.
>
> Hi Tristan,
>
> Changing the address for loading works, except that our machines are not
> all the same and I'd have to set it individually for each one. I'd
> rather start looking at the relocation so we get an infrastructure for
> that sorted.
Ok, so this is more urgent that I previously thought.

I am working on a patch which change Xen mapping making it much more flexible.  
I will add the relocation feature.

> > According to page_alloc.c, the allocator needs a bitmap for memory.  This
> > bitmap is not sparse.  I suppose this is a major issue for Altix to be
> > fixed.
>
> Yup, I hit that one too, takes forever to boot because of this :(
You'd better to work on this issue as SGI is the only one which such features!

Tristan.

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