[tesla-dev] _PSS not found issue
Mark Haywood
Mark.Haywood at Sun.COM
Wed Sep 12 18:11:22 PDT 2007
Li, Aubrey wrote:
> On Thursday, September 13, 2007 1:56 AM, Dana.Myers at Sun.COM wrote:
>
>
>> So I took a look at the code (it's been a long time since I wrote it,
>> and I've forgotten how I implemented it). I originally feared that
>> I'd implemented the CPU mapping in a way that the 'duplicate'
>> Processor objects would confuse the mapping code. As you point out,
>> Mark, this is not
>> the case.
>> You're completely correct, as far as I can tell - there's no reason to
>> ignore the Alias()ed Processor objects - they're just references to
>> the same object anyway. I admit I wasn't thinking of the case of
>> Alias() when I implemented the mapping code, but it doesn't make a
>> difference at
>> all.
>> No memory is leaked, nothing is broken.
>>
>> Thanks -
>> Dana
>>
>
> That's not true, actually processor handler mapping is broken when an
> AliasObject exists.
> Although it is reference to the same object, it's another new object in
> the namespace.
> And it's not the parent of _PDC object. So when you passed it as the
> handler parameter to evaluate _PDC,
> We will run into the failure.
>
If this is true, then it seems to me that something must be wrong with
the acpica interpreter. According to the spec (as I read it anyway), you
should be able to treat the alias just as you would the target. So, it
we cannot evaluate the _PDC using the alias object, then again, I think
something is wrong at a higher level than where we are doing the mapping
in osl.c
Mark
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