Re: [Xen-devel] [PATCH] Intel/vpmu: Use Intel VPMU quirk on all family 6 processors

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 05/16/2013 08:30 AM, Jan Beulich wrote:
> > > > On 10.05.13 at 11:46, George Dunlap <George.Dunlap@xxxxxxxxxxxxx> wrote:
> > On Thu, May 9, 2013 at 9:45 PM, Boris Ostrovsky
> > <boris.ostrovsky@xxxxxxxxxx> wrote:
> > > On 05/09/2013 04:34 PM, Boris Ostrovsky wrote:
> > > > Currently only a few Intel models have VPMU workaround turned on. It
> > > > appears, however, that this issue exists on more models than what is
> > > > covered by check_pmc_quirk(). Since we don't know exactly which cpus
> > > > are affected we should turn this workaround on for all family 6
> > > > processors.
> > > Haitao,
> > >
> > > A few weeks ago we had an email thread about this issue
> > > (http://lists.xen.org/archives/html/xen-devel/2013-03/msg02618.html)
> > > Did you have a chance to clarify with your HW folks what this is?
> > >
> > > We kept hitting this on various models which is why I am suggesting this
> > > patch (and I think it should be considered for 4.3).
> > In principle it's a bug fix, and fine for 4.3.  But it would be good
> > to get some feedback from someone at Intel.
> Intel, anyone???
>
> Thanks, Jan
I haven't seen any responses from Intel folks about this issue.

Do we wait for post-4.3?

-boris

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