On Sat, Jun 04, 2005 at 08:55:56PM +0900, YAMAMOTO Takashi wrote:
> > This is acceptable, but the kernel needs to be able to handle both for some
> > time.  Otherwise we'll have a problem for the upgrade (we need to upgrade both
> > the kenrel and tools at once, and this is something we want to avoid if 
> > possible)
> 
> a question is, how long is "some time".  forever?

I'd say wait for pkgsrc-2005Q2 to be branched. At this time 2005Q1 will
be EOL'd

> 
> > > > Which means that you have to revert the pkgsrc source. not easy if you
> > > > don't have CVS access.
> > > 
> > > well, so what?
> > > all userland tools are the same in these respects.
> > 
> > Not really. Old tools with new kernel usually work.
> 
> some system tools don't usually work.
> eg. kmem grovellers, ipf/pf utilities, etc.
> IMO xentools belong to this kind of tools.

For most kmem grovellers it usually is not a big problem, we can run a
system without them. For ipf/pf utilities it's annoying, and I consider this
as a bug. A Xen system without xentools is unusable, so I think we have to
provide a clean upgrade path, especially when it's easy.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 26 ans d'experience feront toujours la difference
--