linux-kernel - Re: [intel-pstate driver regression] processor frequency very high even if in idle

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Message-ID: <1459523120.5912.20.camel@linux.intel.com>
Date:	Fri, 01 Apr 2016 08:05:20 -0700
From:	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To:	Jörg Otte <jrg.otte@...il.com>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>,
	Doug Smythies <dsmythies@...us.net>
Subject: Re: [intel-pstate driver regression] processor frequency very high
 even if in idle

On Fri, 2016-04-01 at 11:42 +0200, Jörg Otte wrote:
> 2016-03-31 19:55 GMT+02:00 Srinivas Pandruvada
> <srinivas.pandruvada@...ux.intel.com>:
> > On Thu, 2016-03-31 at 19:27 +0200, Jörg Otte wrote:
> > > 2016-03-31 17:43 GMT+02:00 Rafael J. Wysocki <rjw@...ysocki.net>:
> > > > On Thursday, March 31, 2016 05:25:18 PM Jörg Otte wrote:
> > > > > 2016-03-31 13:42 GMT+02:00 Rafael J. Wysocki <rjw@...ysocki.n
> > > > > et>:
> > > > > > On Thursday, March 31, 2016 11:05:56 AM Jörg Otte wrote:
[cut]

> I compile a minimum kernel for my notebook. The hardware is fix and
> will never change. So I don't need thousends of modules to compile.
> Kbuild supports this with target "localmodconfig".
> In the rare cases where I get new usb-hardware I add a new driver
> and compile a new kernel which takes only a minute.
> 
With this minimum config, I am not able to properly run my laptop to
reproduce.
May be something odd in this config is triggering this issue, we are
not going to idle on some CPUs.

Thanks,
Srinivas

> Thanks, Jörg
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