From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933266AbZHVKyT (ORCPT ); Sat, 22 Aug 2009 06:54:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933104AbZHVKyT (ORCPT ); Sat, 22 Aug 2009 06:54:19 -0400 Received: from einhorn.in-berlin.de ([192.109.42.8]:41305 "EHLO einhorn.in-berlin.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932440AbZHVKyS (ORCPT ); Sat, 22 Aug 2009 06:54:18 -0400 X-Envelope-From: stefanr@s5r6.in-berlin.de Message-ID: <4A8FCE50.9070801@s5r6.in-berlin.de> Date: Sat, 22 Aug 2009 12:54:08 +0200 From: Stefan Richter User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8.1.22) Gecko/20090630 SeaMonkey/1.1.17 MIME-Version: 1.0 To: Robert Hancock CC: Gene Heskett , Linus Torvalds , Linux Kernel Mailing List Subject: Re: Regression: Linux 2.6.31-rc7 lost sensors on asus mobo References: <200908212309.31505.gene.heskett@verizon.net> <4A8F8C49.2030406@gmail.com> In-Reply-To: <4A8F8C49.2030406@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Robert Hancock wrote: > On 08/21/2009 09:09 PM, Gene Heskett wrote: >> From messages when I attempt to access the it87: >> Aug 21 22:59:37 coyote kernel: [ 572.507928] it87: Found IT8716F chip at 0x290, revision 1 >> Aug 21 22:59:37 coyote kernel: [ 572.507937] it87: in3 is VCC (+5V) >> Aug 21 22:59:37 coyote kernel: [ 572.507939] it87: in7 is VCCH (+5V Stand-By) >> Aug 21 22:59:37 coyote kernel: [ 572.508232] ACPI: I/O resource it87 [0x295-0x296] conflicts with ACPI region IP__ [0x295-0x296] >> Aug 21 22:59:37 coyote kernel: [ 572.508234] ACPI: Device needs an ACPI driver ... > The ACPI AML on your machine indicates that the BIOS may attempt to > access the it87 hardware, and the kernel now by default blocks it87 from > requesting those ports as it may conflict with what the BIOS is trying > to do. On some machines, the ACPI BIOS accesses hardware monitoring > chips itself to manage ACPI thermal zones, etc. and the conflicting > access can cause incorrect temperature readings and other bad behavior. > > You can try acpi_enforce_resources=lax on the kernel command line to > restore the previous behavior. Or for some Asus boards, you can try the > asus_atk0110 ACPI driver instead of it87. PS: There have been previous reports, e.g. those logged as http://bugzilla.kernel.org/show_bug.cgi?id=13967 -- Stefan Richter -=====-==--= =--- =-==- http://arcgraph.de/sr/