https://bugzilla.kernel.org/show_bug.cgi?id=202417

            Bug ID: 202417
           Summary: ACPI Error: No handler for Region [XSCG]
           Product: ACPI
           Version: 2.5
    Kernel Version: 4.20.x
          Hardware: Intel
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
          Assignee: [email protected]
          Reporter: [email protected]
        Regression: No

Hello,

I tested the new 4.20.4 kernel and I've got a lot of ACPI errors during boot. I
launched the dmesg command, and here are the results:

[    3.704748] ACPI Error: No handler for Region [XSCG] (000000006383652b)
[GenericSerialBus] (20181003/evregion-132)
[    3.704773] ACPI Error: Region GenericSerialBus (ID=9) has no handler
(20181003/exfldio-265)
[    3.704807] ACPI Error: Method parse/execution failed \_SB.GPO2._E12,
AE_NOT_EXIST (20181003/psparse-516)
[    4.037210] ACPI Error: No handler for Region [XSCG] (000000006383652b)
[GenericSerialBus] (20181003/evregion-132)
[    4.037233] ACPI Error: Region GenericSerialBus (ID=9) has no handler
(20181003/exfldio-265)
[    4.037265] ACPI Error: Method parse/execution failed \_SB.GPO1._E14,
AE_NOT_EXIST (20181003/psparse-516)
[   53.055025] ACPI Error: No handler for Region [XSCG] (000000006383652b)
[GenericSerialBus] (20181003/evregion-132)
[   53.055044] ACPI Error: Region GenericSerialBus (ID=9) has no handler
(20181003/exfldio-265)
[   53.055086] ACPI Error: Method parse/execution failed \_SB.ADP1._PSR,
AE_NOT_EXIST (20181003/psparse-516)
[   53.055109] ACPI Error: Method parse/execution failed \_SB.TCH1.PPPC,
AE_NOT_EXIST (20181003/psparse-516)
[   53.144972] ACPI Error: No handler for Region [XSCG] (000000006383652b)
[GenericSerialBus] (20181003/evregion-132)
[   53.144993] ACPI Error: Region GenericSerialBus (ID=9) has no handler
(20181003/exfldio-265)
[   53.145035] ACPI Error: Method parse/execution failed \_SB.ADP1._PSR,
AE_NOT_EXIST (20181003/psparse-516)
[   53.145067] ACPI Error: Method parse/execution failed \_SB.TCH2.PPPC,
AE_NOT_EXIST (20181003/psparse-516)
[   53.145762] ACPI Error: No handler for Region [XSCG] (000000006383652b)
[GenericSerialBus] (20181003/evregion-132)
[   53.145778] ACPI Error: Region GenericSerialBus (ID=9) has no handler
(20181003/exfldio-265)
[   53.145816] ACPI Error: Method parse/execution failed \_SB.ADP1._PSR,
AE_NOT_EXIST (20181003/psparse-516)
[   53.145837] ACPI Error: Method parse/execution failed \_SB.TCHG.PPPC,
AE_NOT_EXIST (20181003/psparse-516)
[   55.304916] ACPI Error: No handler for Region [XSCG] (000000006383652b)
[GenericSerialBus] (20181003/evregion-132)

What does it means ?

Thanks.

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