From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pasi =?iso-8859-1?Q?K=E4rkk=E4inen?= <pasik@iki.fi>
Subject: Re: Linux 3.4 dom0 kernel error loading
 xen-acpi-processor: Input/output error
Date: Wed, 6 Mar 2013 23:21:47 +0200
Message-ID: <20130306212147.GU8912@reaktio.net>
References: <20130221092434.GQ8912@reaktio.net>
	<20130221122913.GC6647@phenom.dumpdata.com>
	<20130224220524.GY8912@reaktio.net>
	<20130303185347.GH8912@reaktio.net>
	<20130305174515.GA24062@phenom.dumpdata.com>
	<20130306204139.GS8912@reaktio.net>
	<20130306210127.GT8912@reaktio.net>
Mime-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Return-path: <xen-devel-bounces@lists.xen.org>
Content-Disposition: inline
In-Reply-To: <20130306210127.GT8912@reaktio.net>
List-Unsubscribe: <http://lists.xen.org/cgi-bin/mailman/options/xen-devel>,
	<mailto:xen-devel-request@lists.xen.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xen.org>
List-Help: <mailto:xen-devel-request@lists.xen.org?subject=help>
List-Subscribe: <http://lists.xen.org/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xen.org?subject=subscribe>
Sender: xen-devel-bounces@lists.xen.org
Errors-To: xen-devel-bounces@lists.xen.org
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>, xen-devel@lists.xen.org
List-Id: xen-devel@lists.xenproject.org

On Wed, Mar 06, 2013 at 11:01:27PM +0200, Pasi K=E4rkk=E4inen wrote:
> On Wed, Mar 06, 2013 at 10:41:39PM +0200, Pasi K=E4rkk=E4inen wrote:
> > On Tue, Mar 05, 2013 at 12:45:15PM -0500, Konrad Rzeszutek Wilk wrote:
> > > > =

> > > > .. and thus ACPI_SUCCESS(status) is false. _PCT was not found.
> > > > Any ideas why the Performance Control stuff can't be found? =

> > > =

> > > =

> > > No, but I usually do one more thing to check my assumptions. I extract
> > > the SSDT and DSDT:
> > > =

> > > cat /sys/firmware/acpi/DSDT > /tmp/dsdt
> > >
> > =

> > In dom0:
> > =

> > cat: /sys/firmware/acpi/DSDT: No such file or directory
> > =

> > # ls /sys/firmware/acpi/
> > interrupts  pm_profile  tables
> >
> =

> Actually the correct path is: /sys/firmware/acpi/tables/DSDT
> So the acpi tables are there.
> =

> .. but the problem is there's no _PCT info in them.
> =


.. so on which hardware is xen-acpi-processor driver required? =


Is the actual problem that I don't have _PCT because it's not required/supp=
orted on my hw,
and thus I don't need the whole xen-acpi-processor driver? =


I checked the Xeon 5600 CPU, and also Ivy Bridge i7, and there's no _PCT on=
 either one..

-- Pasi