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Re: [Xen-devel] Xen 4.2.0-rc4 issues with DVB tuner



Tuesday, September 18, 2012, 12:52:01 PM, you wrote:

> On Tue, Sep 18, 2012 at 10:57 AM, Keir Fraser <keir.xen@xxxxxxxxx> wrote:

>>> What I donÂt understand is how graphics pass through even works
>> and a tuner
>>> card has problems due to the introduced latencies in the
>> IRQs.
>>
>> Do you have
>>> any more info about this?
>>
>> In this respect sound is harder than graphics. Try pinning your dom0 to a
>> CPU core, and set affinities on other domains so that dom0 does not compete
>> for the core with any other domains.

> All right, I can try that. However, the problem happens without any
> domU running, just
> the dom0. Do you still think that pinning to a cpu core or setting
> affinities can help?

I haven't followed the thread closely, but are you sure the device works OK on 
baremetal (linux without xen) ?
If you have problems in dom0 it seems it hasn't got much to do with passthrough 
?

--
Sander


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