Re: Xen 3.3 News

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Wed, Jul 16, 2008 at 04:19:37PM +1000, Sarton O'Brien wrote:
> >[...]
> >Hm. Can we clarify this? There's a sysutils/xentools3 package, which
> >is Xen 3.1.4. This works fine on 4-branch still, right? Are you saying
> >that 3.2 (which should of course be added as a separate package, so that
> >those who are still using 3.1 don't get left out in the cold) will not
> >run under 4-branch, and can't run under 4-branch?
> 
> I can't state the exact situation as it's only been hinted at and I 
> track netbsd and pkgsrc HEAD but to summarise:
> 
> There was a change in xentools (I believe) that required a change on 
> netbsd. This change broke older xentools versions when using the new 
> modified kernels

No, a new kernel can work with older tools - the code may be under 
COMPAT_40 in current though. An ioctl changed, but compat code for
the old ioctl is there.

> and in the other direction, broke newer xentools from 
> working with older kernels.

that's true (only for xentools3-hvm, non-hvm are still working fine).
A recent kernel and userland from HEAD or netbsd-4 is required to
build working xentools3-hvm.

-- 
Manuel Bouyer, LIP6, Universite Paris VI.           
Manuel.Bouyer%lip6.fr@localhost
     NetBSD: 26 ans d'experience feront toujours la difference
--