acpi bug linux4.17r1

:
[    0.720083] ACPI Error: No pointer back to namespace node in package (ptrval) (20180313/dsargs-303)
[    0.720690]
               Initialized Local Variables for Method [_TSS]:
[    0.720693]   Local0: (ptrval) <Obj>           Package (ptrval)
[    0.720705] No Arguments are initialized for method [_TSS]
[    0.720712] ACPI Error: Method parse/execution failed \_PR.CPU0._TSS, AE_AML_INTERNAL (20180313/psparse-516)
[    0.721373] ACPI Error: AE_AML_INTERNAL, Evaluating _TSS (20180313/processor_throttling-520)
[    0.722589] ACPI Error: No pointer back to namespace node in package (ptrval) (20180313/dsargs-303)
[    0.723195]
               Initialized Local Variables for Method [_TSS]:
[    0.723197]   Local0: (ptrval) <Obj>           Package (ptrval)
[    0.723209] No Arguments are initialized for method [_TSS]
[    0.723216] ACPI Error: Method parse/execution failed \_PR.CPU0._TSS, AE_AML_INTERNAL (20180313/psparse-516)
[    0.723873] ACPI Error: Method parse/execution failed \_PR.CPU1._TSS, AE_AML_INTERNAL (20180313/psparse-516)
[    0.724519] ACPI Error: AE_AML_INTERNAL, Evaluating _TSS (20180313/processor_throttling-520)
[    0.725698] ACPI Error: No pointer back to namespace node in package (ptrval) (20180313/dsargs-303)
[    0.726321]
               Initialized Local Variables for Method [_TSS]:
[    0.726323]   Local0: (ptrval) <Obj>           Package (ptrval)
[    0.726335] No Arguments are initialized for method [_TSS]
[    0.726342] ACPI Error: Method parse/execution failed \_PR.CPU0._TSS, AE_AML_INTERNAL (20180313/psparse-516)
[    0.726998] ACPI Error: Method parse/execution failed \_PR.CPU2._TSS, AE_AML_INTERNAL (20180313/psparse-516)
[    0.727644] ACPI Error: AE_AML_INTERNAL, Evaluating _TSS (20180313/processor_throttling-520)
[    0.728798] ACPI Error: No pointer back to namespace node in package (ptrval) (20180313/dsargs-303)
[    0.729421]
               Initialized Local Variables for Method [_TSS]:
[    0.729424]   Local0: (ptrval) <Obj>           Package (ptrval)
[    0.729435] No Arguments are initialized for method [_TSS]
[    0.729442] ACPI Error: Method parse/execution failed \_PR.CPU0._TSS, AE_AML_INTERNAL (20180313/psparse-516)
[    0.730099] ACPI Error: Method parse/execution failed \_PR.CPU3._TSS, AE_AML_INTERNAL (20180313/psparse-516)
[    0.730745] ACPI Error: AE_AML_INTERNAL, Evaluating _TSS (20180313/processor_throttling-520)