On Tue, May 24, 2005 at 09:52:27PM +0900, YAMAMOTO Takashi wrote:
> > > > > is it (new userland + old kernel) expected to work?  i don't think so.
> > > > 
> > > > In this case it's not "new userland", it's a software from a newer pkgsrc
> > > > built on an older system.
> > > 
> > > sorry, i don't understand your point.
> > > xentools is an userland application.
> > > any userland applications which rely on something new in kernel are not
> > > expected to work with older kernel.
> > > whether it's in basesrc or not is not related.
> > 
> > It is, because pkgsrc softwares are expected to build and run on older
> > systems.
> 
> do you mean, we need to keep xentools in pkgsrc to use old version of
> IOCTL_PRIVCMD_INITDOMAIN_EVTCHN?
> 
> > > > The upgrade path for the /kern mmap issue is:
> > > > update pkgsrc and rebuild xentools20
> > > > update kernel
> > > > reboot
> > > > if something goes wrong with the new kenrel you can still go back to the
> > > > old one.
> > > 
> > > you can go back to the old xentools, can't you?
> > 
> > Once you have updated pkgsrc and installed the new tools, it's not as easy
> > as rebooting on an older kernel.
> 
> i think you can boot domain0 with old kernel and install old xentools.

Which means that you have to revert the pkgsrc source. not easy if you
don't have CVS access.

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