From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Wang Lei <f3d27b@gmail.com>
Subject: Re: [BUG] Fans keep running, first found since v2.6.38-rc7
Date: Thu, 10 Mar 2011 01:06:36 +0100
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Cc: linux-kernel@vger.kernel.org,
        ACPI Devel Mailing List <linux-acpi@vger.kernel.org>
References: <4d774c85.20f98e0a.2695.73ed@mx.google.com> <201103092125.43950.rjw@sisk.pl> <4d780a2f.231a8f0a.3b01.ffffa228@mx.google.com>
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On Thursday, March 10, 2011, Wang Lei wrote:
> "Rafael J. Wysocki" <rjw@sisk.pl> writes:
> 
> > On Wednesday, March 09, 2011, Wang Lei wrote:
> >> "Rafael J. Wysocki" <rjw@sisk.pl> writes:
> >> 
> >> >
> >> > There was only one commit in that area since 2.6.38-rc6, but it shouldn't
> >> > affect the functionality this way.
> >> >
> >> > Is yout thermal management controlled by ACPI?
> >> >
> >> > Rafael
> >> 
> >> Thanks for your reply!
> >> 
> >> How could I know that?
> >
> > What does "ls -l /sys/class/thermal/cooling_device0/device" say?
> >
> > Rafael
> 
> [~]$ ls -l /sys/class/thermal/cooling_device0/device
> lrwxrwxrwx 1 root root 0 Mar 10 07:13 /sys/class/thermal/cooling_device0/device -> ../../../LNXSYSTM:00/device:47/PNP0C0B:00
> [~]$

That's ACPI.

I don't know, however, which change might cause the problem to happen.

Can you bisect the commits between 2.6.38-rc6 and -rc7 to find the one that
introduced the issue?

Rafael
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