[CentOS-virt] Xen updates / TODO

Mon Mar 10 17:55:44 UTC 2014
Pasi Kärkkäinen <pasik at iki.fi>

On Thu, Feb 20, 2014 at 10:26:04AM -0600, Johnny Hughes wrote:
> >>>>
> >>>> 2) After that, we should start packaging/testing Xen 4.3.2:
> >>>>    http://lists.xen.org/archives/html/xen-devel/2014-02/msg01622.html
> >>>>
> >>>>    Xen 4.3 brings much improved XL toolstack in addition to a lot of other changes/fixes.    
> >>> my understanding was that we might skip 4.3, and rebase from 4.2 to 4.4
> >>> once that hits the released path
> >> I am OK with either path, although my understanding is 4.2 => 4.4 as well.
> >>
> > Yep. Let's see when Xen 4.4 gets released.
> >
> > Shall we start with the first step, which is upgrading to Xen 4.2.4? :)
> >
> 
> I am getting ready to shutdown my machine and pack it up to head out for
> the airport right now, to go to Scale12x:
> 
> http://www.socallinuxexpo.org/scale12x
> 
> I should be back home and ready to go by Tuesday morning though ... so
> if I don't get time to do it at SCALE, I will on Tuesday.
> 

Ok so Xen 4.2.4 and Linux 3.10.32 dom0 kernel are out in the xen4centos repo now.
Also upstream released Xen 4.4.0 today.

In general Xen upstream supports live migrations from (current-1) to (current) version.
So if we want to provide a (live) migration path from Xen 4.2.* to 4.4.* we probably
should package Xen 4.3.2 first.. So people could migrate from 4.2.4 -> 4.3.2 -> 4.4.0.

What do you think? 

(Fedora 20 has Xen 4.3.2 rpms in the updates repo, for .spec foo, if needed).

-- Pasi