https://bugzilla.kernel.org/show_bug.cgi?id=211737

Zhang Rui (rui.zh...@intel.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED

--- Comment #6 from Zhang Rui (rui.zh...@intel.com) ---
$ grep ECRD *.dsl
dsdt.dsl:            ECRD,   1, 
dsdt.dsl:                \_SB.PCI0.LPCB.EC.ECRD = 0x01
dsdt.dsl:                \_SB.PCI0.LPCB.EC.ECRD = 0x00
ssdt2.dsl:    External (_SB_.PCI0.LPCB.H_EC.ECRD, MethodObj)    // 1 Arguments
ssdt2.dsl:                    RPMV [0x02] = \_SB.PCI0.LPCB.H_EC.ECRD (RefOf
(\_SB.PCI0.LPCB.H_EC.CFSP))

$ grep FSDD *.dsl
ssdt2.dsl:            Method (FSDD, 0, NotSerialized)

First of all, this is a BIOS bug because ECRD is not defined as a method
anywhere, but it is referenced as an ACPI method in ssdt2.


To me, the thing I don't understand is that why this error is triggered
frequently.
The bogus AML code is in ACPI method FSDD, and FSDD method is not invoked by
another other method, or by Linux kernel.
Erik, any ideas?

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