base kernel to build fedora

[Tomasz Torcz]

On Mon, May 24, 2010 at 01:14:07PM -0700, Jesse Keating wrote:
> On Mon, 2010-05-24 at 13:01 +0100, Richard W.M. Jones wrote:
> > On Sun, May 23, 2010 at 04:45:49PM -0500, Bruno Wolff III wrote:
> > > People already ready run scripts to look for FTBFS packages now. Having to
> > > deal with all of these at once would be a real problem. Doing this this way
> > > allows us to spread out the fixing over time.
> > 
> > The problem isn't FTBFS packages, but packages that require devious
> > workarounds because Koji isn't quite like any other distro out there.
> > 
> > Koji is a Fedora userspace running on top of a RHEL 5 kernel.  This
> > tests out all sorts of strange and interesting paths inside glibc,
> > because glibc emulates a lot of system calls which didn't exist in
> > RHEL 5.  While extra testing is usually great, it's not clear that
> > dumping this testing on to package maintainers is a good thing,
> > particularly since Koji is about the only real world case where people
> > actually run mismatched userspace and kernel like this.  (There is no
> > distro that I know of that advocates running a brand new userspace on
> > top of an old kernel -- but please correct me if I'm wrong about
> > that).
> 
> While building in vms is starting to make sense on x86, it still doesn't
> make sense (or not possible) on other arches like ppc, s390, arm, sparc,
> ia64, etc...  So building for those arches is going to continue to use
> the mock path, which means if we don't do it for x86, we're going to run
> into these odd code paths on even "odder" arches and make keeping those
> up and running even harder.

 http://www.linux-kvm.org/page/PowerPC
 http://www.mjmwired.net/kernel/Documentation/ia64/kvm.txt
 http://www.mjmwired.net/kernel/Documentation/s390/kvm.txt
 http://sourceforge.net/projects/arm-kvm/
 + some mail-list disscussion about KVM on SPARC.

 It is certainly possible. Often in experimental state, but nevertheless.
We have the technology for VMs.

-- 
Tomasz Torcz                 Morality must always be based on practicality.
xmpp: zdzichubg at chrome.pl                -- Baron Vladimir Harkonnen