Re: [Xen-devel] [PATCH] x86: avoid HPET use on certain Intel platforms

[Andreas Kinzler <hfp@xxxxxxxxx>]

On 25.11.2019 11:15, Jan Beulich wrote:
> On 23.11.2019 00:10, Andreas Kinzler wrote:
> > BTW: Xeon E-2136 @ C242 has 8086:3eca as ID. One needs to check with
> > Intel which combinations are really affected.
> Are you saying you observed the same issue on such a (server processor)
> system as well? Neither its datasheet nor its specification update
The whole thread starting with 
https://lists.xenproject.org/archives/html/xen-devel/2019-10/msg00966.html 
was about Xeon E-2136.
Setting a limit to PC7 greatly reduced the drift 
(https://lists.xenproject.org/archives/html/xen-devel/2019-11/msg01044.html)
> (which I specifically downloaded and looked through just because of your
> remark) have any mention of a similar issue. I also take it that the
> code comment inherited from Linux says "SoCs" for a reason.
Even the kernel mailing list postings lack official confirmation from 
Intel. That is why I said: someone (with internal Intel knowledge) needs 
to confirm which combinations are affected.
Regards Andreas

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