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

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Message-ID: <CAJvTdKm5sdT8R-DNGNWyebTKYDqP49dQMds9++TkF=aF8O=V7Q@mail.gmail.com>
Date:	Wed, 11 Dec 2013 16:43:22 -0500
From:	Len Brown <lenb@...nel.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Borislav Petkov <bp@...en8.de>,
	Thomas Gleixner <tglx@...utronix.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

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.
Until now, i was not aware that this issue might apply to models other
than that one.

Checking w/ the HW guys...

thanks,
Len Brown, Intel Open Source Technology Center
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