https://bugzilla.kernel.org/show_bug.cgi?id=47981





--- Comment #33 from Robert Moore <robert.mo...@intel.com>  2012-10-12 20:36:31 
---

(In reply to comment #28)
> Here are the possibilities I see:
>   1) Use a patch like Feng's to tiptoe around this issue.  But there are 
> likely
> other similar issues waiting to be discovered.
>   2) Turn off ACPI on this platform altogether.  Seems like a big hammer.
>   3) Try to figure out if there's some small ACPICA tweak that would make the
> AML intelligible.

As far as #3:

Currently, ACPICA will complain and then simply ignore (step past) any unknown
AML opcodes. In this case, it recovers rather quickly and at least loads a
"somewhat valid" namespace, albeit missing some intended items.

A more severe problem is when an AML package length error causes the
interpreter to jump off into space; but this appears to not be the problem with
this particular machine.

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