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

[Jakub Lach]

Thank you for ensuring me I have understood those messages correctly, and 
explaining ACPICA behaviour.


Moore, Robert wrote:
> 
> You can ignore these, I think.
> 
> 
>>ACPI Warning (tbfadt-0624): 32/64X length mismatch in Pm1aControlBlock:
>>16/32 [20090123]
> 
> There is a mismatch between the 32-bit and 64-bit versions of the PM1A
> control block in the FADT.
> 
> 32-bit version:
> 
> [059h 089  1]     PM1 Control Block Length : 02
> 
> 
> 
> 64-bit version:
> 
> [0ACh 172 12]           PM1A Control Block : <Generic Address Structure>
> [0ACh 172  1]                     Space ID : 01 (SystemIO)
> [0ADh 173  1]                    Bit Width : 20
> 
> 
> The 32-bit version is in bytes (2) - 16 bits. The 64-bit version specifies
> 32 bits.
> 
> 
> 
>>ACPI Warning (tbfadt-0496): Invalid length for Pm1aControlBlock: 32, using
>>default 16 [20090123]
> 
> The default ACPICA behavior is to override the incorrect value.
> 
> 
> 
>>-----Original Message-----
>>From: owner-freebsd-acpi at freebsd.org [mailto:owner-freebsd-
>>acpi at freebsd.org] On Behalf Of Jakub Lach
>>Sent: Monday, February 09, 2009 3:49 AM
>>To: freebsd-acpi at freebsd.org
>>Subject: RE: ACPI error, No pointer back to NS node in buffer obj
>>
>>
>>Hello again.
>>
>>Updated to ACPICA 20090123, got 2 new warnings:
>>
>>ACPI Warning (tbfadt-0624): 32/64X length mismatch in Pm1aControlBlock:
>>16/32 [20090123]
>>ACPI Warning (tbfadt-0496): Invalid length for Pm1aControlBlock: 32, using
>>default 16 [20090123]
>>
>>
>>
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>>pointer-back-to-NS-node-in-buffer-obj-tp21112077p21911316.html
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>>
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