ACPI error, No pointer back to NS node in buffer obj

Jakub Lach jakub_lach at mailplus.pl
Wed Jan 28 17:36:51 PST 2009


Thanks for information and kind assistance. If I understand correctly,
Jung-uk Kim provides FreeBSD specific diffs of ACPICA. I will certainly try
them.

http://people.freebsd.org/~jkim/


Moore, Robert wrote:
> 
> Our git repository is at git.acpica.org/repos/acpica.git
> 
> 
>>-----Original Message-----
>>From: owner-freebsd-acpi at freebsd.org [mailto:owner-freebsd-
>>acpi at freebsd.org] On Behalf Of Moore, Robert
>>Sent: Wednesday, January 28, 2009 1:54 PM
>>To: Jakub Lach; freebsd-acpi at freebsd.org
>>Subject: RE: ACPI error, No pointer back to NS node in buffer obj
>>
>>
>>I believe that this problem may be fixed in ACPICA version 20080213:
>>
>>
>>13 February 2008. Summary of changes for version 20080213:
>>
>>
>>commit 24a3157a90ddf851a0880c0b8963bc43481cd85b
>>Author: Bob Moore <robert.moore at intel.com>
>>Date:   Thu Apr 10 19:06:43 2008 +0400
>>
>>    ACPICA: Fix for possible error when packages/buffers are passed to
>>methods externally
>>
>>    Fixed a problem where buffer and package objects passed as
>>    arguments to a control method via the external AcpiEvaluateObject
>>    interface could cause an AE_AML_INTERNAL exception depending on the
>>    order and type of operators executed by the target control method.
>>
>>    Signed-off-by: Bob Moore <robert.moore at intel.com>
>>    Signed-off-by: Alexey Starikovskiy <astarikovskiy at suse.de>
>>    Signed-off-by: Len Brown <len.brown at intel.com>
>>
>>
>>
>>
>>
>>
>>>-----Original Message-----
>>>From: owner-freebsd-acpi at freebsd.org [mailto:owner-freebsd-
>>>acpi at freebsd.org] On Behalf Of Jakub Lach
>>>Sent: Monday, January 19, 2009 5:25 PM
>>>To: freebsd-acpi at freebsd.org
>>>Subject: Re: ACPI error, No pointer back to NS node in buffer obj
>>>
>>>
>>>Hi,
>>>
>>>I have observed similar errors on amd64 7.1 RELEASE LiveDVD.
>>>
>>>http://forums.freebsd.org/showthread.php?t=1533
>>>
>>>These looks T400 specific.
>>>
>>>I'm looking forward to using this machine
>>>with FreeBSD stable, so I hope these issues will be adressed in current
>>>soon..
>>>
>>>All best,
>>>
>>>Jakub Lach
>>>
>>>
>>>Ganbold wrote:
>>>>
>>>> Hi,
>>>>
>>>> These messages are appearing on CURRENT.
>>>> ...
>>>> cpu0: <ACPI CPU> on acpi0
>>>> ACPI Error (dsopcode-0350): No pointer back to NS node in buffer obj
>>>> 0x854857c0 [20070320]
>>>> ACPI Exception (dswexec-0556): AE_AML_INTERNAL, While resolving
>>>> operands
>>>> for [OpcodeName unavailable] [20070320]
>>>> ACPI Error (psparse-0626): Method parse/execution failed
>>>> [\_PR_.CPU0._OSC] (Node 0x852c2620), AE_AML_INTERNAL
>>>> est0: <Enhanced SpeedStep Frequency Control> on cpu0
>>>> p4tcc0: <CPU Frequency Thermal Control> on cpu0
>>>> cpu1: <ACPI CPU> on acpi0
>>>> ACPI Error (dsopcode-0350): No pointer back to NS node in buffer obj
>>>> 0x85477c00 [20070320]
>>>> ACPI Exception (dswexec-0556): AE_AML_INTERNAL, While resolving
>>>> operands
>>>> for [OpcodeName unavailable] [20070320]
>>>> ACPI Error (psparse-0626): Method parse/execution failed
>>>> [\_PR_.CPU1._OSC] (Node 0x852c2540), AE_AML_INTERNAL
>>>> est1: <Enhanced SpeedStep Frequency Control> on cpu1
>>>> ...
>>>>
>>>> Are above messages harmful?
>>>>
>>>> Additional infos at:
>>>>
>>>> http://people.freebsd.org/~ganbold/acpi.txt
>>>>
>>>> thanks,
>>>>
>>>> Ganbold
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Being popular is important. Otherwise people might not like you.
>>>>
>>>> _______________________________________________
>>>> freebsd-acpi at freebsd.org mailing list
>>>> http://lists.freebsd.org/mailman/listinfo/freebsd-acpi
>>>> To unsubscribe, send any mail to "freebsd-acpi-unsubscribe at freebsd.org"
>>>>
>>>>
>>>
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>>>
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