http://bugzilla.kernel.org/show_bug.cgi?id=6001


[EMAIL PROTECTED] changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |NEEDINFO




------- Comment #39 from [EMAIL PROTECTED]  2008-05-21 23:59 -------
some interesting update.

We tried to use KVM to peek at how windows use _DOS.
And this is the result:
customized dsdt:
Method (_DOS, 1, NotSerialized)
{
        Store(0x11, \DBGL)
        Store(Arg0, \DBGL)
        Store(0x12, \DBGL)
}

result:
ACPI: DBG: 0x00000011
ACPI: DBG: 0x00000000
ACPI: DBG: 0x00000012

It seems that windows clears _DOS like we do in Linux...

I'll attach the customized dsdt and the test results of running a windows XP
and running a fc6


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