new ACPI warning after update to 9-current

[Alexander Leidinger]

Quoting Jung-uk Kim <jkim at FreeBSD.org> (from Wed, 30 Sep 2009 19:18:44 -0400):

> On Wednesday 30 September 2009 07:58 am, Alexander Leidinger wrote:
>> Hi,
>>
>> after updating form 8-beta2 to current (r197613) I get the
>> following new message while booting:
>> ---snip---
>> ACPI Warning: Detected an unsupported executable opcode at
>> module-level: [0x7B] at table offset 0x94 (20090903/psloop-630)
>> ACPI Warning: Detected an unsupported executable opcode at
>> module-level: [0x7B] at table offset 0x99 (20090903/psloop-630)
>> ---snip---
>>
>> Anything I should provide additionally? What does it mean (the
>> non-obvious meaning and the implications for the system)?
>
> New ACPICA added partial support for executable at module level, which
> is illegal by specification and previously ignored without warning.
> Unfortunately many BIOSes out there has broken DSDT/SSDT because
> Windows ACPI interpreter does not care although it is illegal since
> ACPI 2.0.  I say "partial" because only three opcodes are supported
> at module level ATM, i.e., If, Else, and While.  Basically, it is
> telling you that unsupported opcode is found at module level.  For
> more info, see the following commit:
>
> http://git.moblin.org/cgit.cgi/acpica/commit/?id=80d7951177315f70b5ffd8663985fbf725d07799

So
  - my BIOS is broken
  - it is doing more than before but not all it should do
    (according to the BIOS)
  - as the system was working before and working now, I do
    not need to worry

After reading the commit log it looks like they want to support more  
in the future.

Bye,
Alexander.

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