Re: some thoughts about merlot{0|1} issues [was: Re: [xen-unstable test] 102522: tolerable FAIL - PUSHED]

[Dario Faggioli <dario.faggioli@citrix.com>]

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On Mon, 2016-11-28 at 13:27 -0500, Boris Ostrovsky wrote:
> On 11/28/2016 12:19 PM, Dario Faggioli wrote:
> > 
> > In any case, what I'm wondering is, could this ACPI / PM thing be
> > linked to the behavior we are seeing?
> 
> I find it somewhat unlikely.
> 
> BTW, I wouldn't worry about C2 specifically --- it's pretty clear
> that
> no C-state stats are collected at all:

[..]

> duration is the only reported value and most likely it's a NOW(). And
> the reason C1 is still mentioned is because it is a required C-state,
> whether or not it's in SSDT.
> 
I see.

> It is strange but I don't see anything in the serial log that would
> indicate a problem.
> 
Ok, thanks for looking. :-)

> > I'm not sure I see how... perhaps the system gets too hot and its
> > throttled down? (Yes, shooting in the dark, I know.)
> 
> I'd expect an event to be triggered (SMI?) and a warning of some sort
> to
> be printed.
> 
Indeed.

Thanks again and Regards,
Dario
-- 
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)

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