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From: "Pasi Kärkkäinen" <pasik@iki.fi>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>, xen-devel@lists.xen.org
Subject: Re: Linux 3.4 dom0 kernel error loading xen-acpi-processor: Input/output error
Date: Wed, 6 Mar 2013 22:41:39 +0200	[thread overview]
Message-ID: <20130306204139.GS8912@reaktio.net> (raw)
In-Reply-To: <20130305174515.GA24062@phenom.dumpdata.com>

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

 
> iasl -d /tmp/dsdt
> and search for the _PCT to make sure they are actually there.
>

I don't seem to have /sys/firmware/acpi/DSDT on baremetal either.. 
I wonder what's going on.. 

'acpidump' from pmtools seems to be able to dump the DSDT.
(on baremetal):

# acpidump --table DSDT -b -o dsdt.bin
# iasl -d dsdt.bin 

Intel ACPI Component Architecture
AML Disassembler version 20090123 [Oct 23 2012]
Copyright (C) 2000 - 2009 Intel Corporation
Supports ACPI Specification Revision 3.0a

Loading Acpi table from file dsdt.bin
Acpi table [DSDT] successfully installed and loaded
Pass 1 parse of [DSDT]
Pass 2 parse of [DSDT]
Parsing Deferred Opcodes (Methods/Buffers/Packages/Regions)
..............................................................................................................................................................................................................................................................................................................................................................
Parsing completed
Disassembly completed, written to "dsdt.dsl"


# grep -i pct dsdt.dsl | wc -l
0


# acpidump --table SSDT -b -o ssdt.bin
# iasl -d ssdt.bin 

Intel ACPI Component Architecture
AML Disassembler version 20090123 [Oct 23 2012]
Copyright (C) 2000 - 2009 Intel Corporation
Supports ACPI Specification Revision 3.0a

Loading Acpi table from file ssdt.bin
Acpi table [SSDT] successfully installed and loaded
Pass 1 parse of [SSDT]
Pass 2 parse of [SSDT]
Parsing Deferred Opcodes (Methods/Buffers/Packages/Regions)
................................................................................................................................................................................................................................................................................................................................................................................................................................................
Parsing completed
Disassembly completed, written to "ssdt.dsl"


# grep -i pct ssdt.dsl | wc -l
0


So uhm.. is this a BIOS/firmware bug? 


-- Pasi

  reply	other threads:[~2013-03-06 20:41 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-21  9:24 Linux 3.4 dom0 kernel error loading xen-acpi-processor: Input/output error Pasi Kärkkäinen
2013-02-21 12:29 ` Konrad Rzeszutek Wilk
2013-02-21 12:42   ` Pasi Kärkkäinen
2013-02-25 17:03     ` Konrad Rzeszutek Wilk
2013-02-25 19:08       ` Pasi Kärkkäinen
2013-02-24 22:05   ` Pasi Kärkkäinen
2013-03-03 18:53     ` Pasi Kärkkäinen
2013-03-05 17:45       ` Konrad Rzeszutek Wilk
2013-03-06 20:41         ` Pasi Kärkkäinen [this message]
2013-03-06 21:01           ` Pasi Kärkkäinen
2013-03-06 21:21             ` Pasi Kärkkäinen
2013-03-07  0:29               ` Konrad Rzeszutek Wilk
2013-03-07  7:48                 ` Pasi Kärkkäinen
2013-03-08 20:24                   ` Konrad Rzeszutek Wilk
2013-03-08 22:18                     ` Pasi Kärkkäinen
2013-03-12 20:51                       ` Pasi Kärkkäinen
2013-03-15 15:05                         ` Konrad Rzeszutek Wilk
2013-03-15 15:19                           ` Pasi Kärkkäinen
2013-03-15 19:37                             ` Pasi Kärkkäinen
2013-03-15 21:15                               ` Konrad Rzeszutek Wilk
2013-03-15 21:32                                 ` Pasi Kärkkäinen
2013-03-17 17:00                                   ` Konrad Rzeszutek Wilk
2013-03-18 13:06                                     ` Konrad Rzeszutek Wilk
2013-03-18 17:02                                       ` Pasi Kärkkäinen
2013-03-18 20:20                                         ` Konrad Rzeszutek Wilk
2013-05-12 16:51                                           ` Pasi Kärkkäinen
2013-05-13 13:46                                             ` Konrad Rzeszutek Wilk
2013-05-13 15:03                                               ` Pasi Kärkkäinen

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