linux-kernel - Re: 50 Watt idle power regression bisected to Linux-3.10

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Message-ID: <alpine.DEB.2.02.1312112320320.28330@ionos.tec.linutronix.de>
Date:	Wed, 11 Dec 2013 23:22:29 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Len Brown <lenb@...nel.org>
cc:	Peter Zijlstra <peterz@...radead.org>,
	Borislav Petkov <bp@...en8.de>,
	Mike Galbraith <bitbucket@...ine.de>,
	Linux PM list <linux-pm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Jeremy Eder <jeder@...hat.com>, x86@...nel.org
Subject: Re: 50 Watt idle power regression bisected to Linux-3.10

On Wed, 11 Dec 2013, Len Brown wrote:

> For the record...
> 
> intel_idle doesn't check that bit because it doesn't run on model 29 --
> the Xeon 7400 was the "Dunnington" 4-socket generation based on Core2.

Right, we wondered about the restricted model check
already. Interesting that this is a 4 socket issue as well.

> Until now, i was not aware that this issue might apply to models other
> than that one.
> 
> Checking w/ the HW guys...

I hope they are not equally surprised :)

Thanks,

	tglx
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