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

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> 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


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