linux-kernel - Re: 2.6.24-rc4 hwmon it87 probe fails

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Message-Id: <20071208212234.e00b74cd.mikeserv@bmts.com>
Date:	Sat, 8 Dec 2007 21:22:34 -0500
From:	Mike Houston <mikeserv@...s.com>
To:	Adrian Bunk <bunk@...sta.de>
Cc:	linux-kernel@...r.kernel.org, mhoffman@...htlink.com,
	lm-sensors@...sensors.org
Subject: Re: 2.6.24-rc4 hwmon it87 probe fails

On Sun, 9 Dec 2007 01:05:54 +0100
Adrian Bunk <bunk@...sta.de> wrote:

> On Tue, Dec 04, 2007 at 09:51:54PM -0500, Mike Houston wrote:
> > I finally got around to testing Linux 2.6.24 (2.6.24-rc4) and
> > found that the it87 driver fails to probe and consequently, my
> > sensors no longer work. This was fine with Linux 2.6.23.8 (the
> > last kernel I was using)
> > 
> > The necessary modules load, but:
> > 
> > it87: Found IT8718F chip at 0x290, revision 2
> > it87: in3 is VCC (+5V)
> > it87 it87.656: Failed to request region 0x290-0x297
> > it87: probe of it87.656 failed with error -16
> > 
> > Coretemp still works.
> > 
> > It appears it has something to do with the ioport range being
> > reserved for some reason:
> > 
> > system 00:01: ioport range 0x290-0x29f has been reserved

> 
> Thanks for your report.
> 
> Please also provide:
> - dmesg from 2.6.23.8
> - The output of "cat /proc/ioports" for both kernels

Thanks Adrian, here is the information you have requested, for
both kernels (I have 2.6.23.9 now though where it87 still works)

Linux 2.6.23.9:
http://www.mikeserv.com/temp/proc_ioports-2.6.23.9.txt
http://www.mikeserv.com/temp/dmesg-2.6.23.9.txt
http://www.mikeserv.com/temp/config-2.6.23.9.txt

Linux 2.6.24-rc4:
http://www.mikeserv.com/temp/proc_ioports-2.6.24-rc4.txt
http://www.mikeserv.com/temp/dmesg-2.6.24-rc4.txt
http://www.mikeserv.com/temp/config-2.6.24-rc4.txt

Mike Houston
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