https://bugzilla.kernel.org/show_bug.cgi?id=211071

Zhang Rui ([email protected]) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO
                 CC|                            |[email protected]
           Assignee|acpi_acpica-core@kernel-bug |[email protected]
                   |s.osdl.org                  |

--- Comment #1 from Zhang Rui ([email protected]) ---
(In reply to Robert de Rooy from comment #0)
> Similar to closed issue https://bugzilla.kernel.org/show_bug.cgi?id=203199 I
> am getting ACPI errors on a new T14s running the latest bios release (1.14)
> when plugging and unplugging the power supply.
> https://support.lenovo.com/lu/en/downloads/ds544146-bios-update-utility-
> bootable-cd-for-windows-10-64-bit-and-linux-thinkpad-t14s-gen-1-x13-gen-1
> 
> Jan 07 11:31:09 t14s kernel: ACPI BIOS Error (bug): AE_AML_PACKAGE_LIMIT,
> Index (0x000000011) is beyond end of object (length 0x0)
> (20200717/exoparg2-393)
> Jan 07 11:31:09 t14s kernel: ACPI Error: Aborting method
> \_SB.PCI0.LPCB.EC.BRNS due to previous error (AE_AML_PACKAGE_LIMIT)
> (20200717/psparse-529)
> Jan 07 11:31:09 t14s kernel: ACPI Error: Aborting method
> \_SB.PCI0.LPCB.EC._Q26 due to previous error (AE_AML_PACKAGE_LIMIT)
> (20200717/psparse-529)

This is caused by the bogus AML code.
To confirm this, please attach the acpidump output.
As it might be harmless, did you observe any functionality problems other than
the error messages?

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