https://bugzilla.kernel.org/show_bug.cgi?id=42272
--- Comment #6 from Robert Moore <robert.mo...@intel.com> 2011-09-02 21:39:58
---
Error is caused because NVOP cannot be resolved, and it is actually a control
method. Disassembler has no way of knowing this, so it gets confused:
External (NVOP, IntObj)
P8XH (Zero, 0xF5)
Return (NVOP)
Arg0
Arg1
Arg2
Arg3
This is probably what the actual code should look like:
P8XH (Zero, 0xF5)
Return (NVOP (Arg0, Arg1, Arg2, Arg3))
NVOP may appear in a dynamically loaded SSDT, it is not defined in any of the
SSDTs that appear in the ACPI dump.
This is fundamental issue with AML code where the disassembler cannot properly
reproduce the original code. There is no "argument" information associated with
a compiled method, so the actual method declaration must be present for proper
disassembler. The -e option to iASL should help, if you can dump the
dynamically loaded SSDTs (shown below, from dmesg.)
[ 1.004816] ACPI: SSDT 00000000bf710718 0067C (v01 PmRef Cpu0Cst 00003001
INTL 20061109)
[ 1.005393] ACPI: Dynamic OEM Table Load:
[ 1.005396] ACPI: SSDT (null) 0067C (v01 PmRef Cpu0Cst 00003001
INTL 20061109)
[ 1.016327] ACPI: SSDT 00000000bf711a98 00303 (v01 PmRef ApIst 00003000
INTL 20061109)
[ 1.017005] ACPI: Dynamic OEM Table Load:
[ 1.017007] ACPI: SSDT (null) 00303 (v01 PmRef ApIst 00003000
INTL 20061109)
[ 1.027872] ACPI: SSDT 00000000bf70fd98 00119 (v01 PmRef ApCst 00003000
INTL 20061109)
[ 1.028426] ACPI: Dynamic OEM Table Load:
[ 1.028428] ACPI: SSDT (null) 00119 (v01 PmRef ApCst 00003000
INTL 20061109)
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