Production Use of the PV OPS Kernel

Production Use of the PV OPS Kernel

[Anthony Wright]

Is the pv-ops kernel likely to be declared ready for production use in
the near future (assuming you don't need to use the features that are
missing)?

I notice for Jeremy's presentation on November (referenced from the
pv-ops wiki page) that it's now suitable for 'General Development Use',
but I'd like to be able to use a modern kernel (mainly modern device
drivers) for production Dom0s.

I understand that 3.5 is using pv-ops as the default kernel, and assumed
that there would be a production version declared when 3.5 is released.
Is that likely to be the case, and if so is there any clearer view on
when 3.5 will be released? The only reference that I can find to a
release date was a mailing list post in July saying 'End of the calendar
year, roughly' and I wondered if things are still on track for that.

thanks,

Anthony Wright.

Re: Production Use of the PV OPS Kernel

[Pasi Kärkkäinen]

On Fri, Dec 04, 2009 at 11:57:34AM +0000, Anthony Wright wrote:
> Is the pv-ops kernel likely to be declared ready for production use in
> the near future (assuming you don't need to use the features that are
> missing)?
> 
> I notice for Jeremy's presentation on November (referenced from the
> pv-ops wiki page) that it's now suitable for 'General Development Use',
> but I'd like to be able to use a modern kernel (mainly modern device
> drivers) for production Dom0s.
> 
> I understand that 3.5 is using pv-ops as the default kernel, and assumed
> that there would be a production version declared when 3.5 is released.
> Is that likely to be the case, and if so is there any clearer view on
> when 3.5 will be released? The only reference that I can find to a
> release date was a mailing list post in July saying 'End of the calendar
> year, roughly' and I wondered if things are still on track for that.
> 

Hello,

Keir has stated that xen-unstable will be released as Xen 4.0, in the
beginning of 2010, if all goes fine.

Jeremy can possibly comment more about the pvops dom0 plans.

-- Pasi

Re: Production Use of the PV OPS Kernel

[Keir Fraser]

On 04/12/2009 11:57, "Anthony Wright" <anthony@overnetdata.com> wrote:

> I understand that 3.5 is using pv-ops as the default kernel, and assumed
> that there would be a production version declared when 3.5 is released.
> Is that likely to be the case, and if so is there any clearer view on
> when 3.5 will be released? The only reference that I can find to a
> release date was a mailing list post in July saying 'End of the calendar
> year, roughly' and I wondered if things are still on track for that.

4.0 should release in January, and pv_ops should be fine for dom0 and domU
use at that time. Possibly we will need a 'very stable' branch in the pv_ops
tree so that we can really get things stabilised at the same time as the
xen-unstable tree.

 -- Keir

Re: Production Use of the PV OPS Kernel

[Jeremy Fitzhardinge]

On 12/04/09 05:25, Keir Fraser wrote:
> 4.0 should release in January, and pv_ops should be fine for dom0 and domU
> use at that time. Possibly we will need a 'very stable' branch in the pv_ops
> tree so that we can really get things stabilised at the same time as the
> xen-unstable tree.
>    

Yes.  I'll probably just follow the mainline stable kernel pattern (ie, 
maintain stable-2.6.x for as long as the upstream stable-2.6.x is 
maintained).

     J

Re: Production Use of the PV OPS Kernel

[Andy Burns]

2009/12/4 Keir Fraser <keir.fraser@eu.citrix.com>:

> 4.0 should release in January, and pv_ops should be fine for dom0 and domU
> use at that time.

I've noticed various PCI pasthrough patches (From Konrad and Jeremy I
think) is it likely that xen4.0 pv_ops will support pciback and
pcifront to a similar extent that current non-pv_ops does?