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cloudnet2002-dev: ACPI error
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Description

This is appearing repeatedly on cloudnet2002-dev:

aborrero@cloudnet2002-dev:~ 53s 2 $ sudo dmesg -T | tail
[Mon Jan 21 17:08:13 2019] ACPI Exception: AE_AML_BUFFER_LIMIT, Evaluating _PMM (20160831/power_meter-338)
[Mon Jan 21 17:08:20 2019] ACPI Error: SMBus/IPMI/GenericSerialBus write requires Buffer of length 66, found length 32 (20160831/exfield-427)
[Mon Jan 21 17:08:20 2019] ACPI Error: Method parse/execution failed [\_SB.PMI0._PMM] (Node ffff96de2ec67ac8), AE_AML_BUFFER_LIMIT (20160831/psparse-543)
[Mon Jan 21 17:08:20 2019] ACPI Exception: AE_AML_BUFFER_LIMIT, Evaluating _PMM (20160831/power_meter-338)
[Mon Jan 21 17:09:13 2019] ACPI Error: SMBus/IPMI/GenericSerialBus write requires Buffer of length 66, found length 32 (20160831/exfield-427)
[Mon Jan 21 17:09:13 2019] ACPI Error: Method parse/execution failed [\_SB.PMI0._PMM] (Node ffff96de2ec67ac8), AE_AML_BUFFER_LIMIT (20160831/psparse-543)
[Mon Jan 21 17:09:13 2019] ACPI Exception: AE_AML_BUFFER_LIMIT, Evaluating _PMM (20160831/power_meter-338)
[Mon Jan 21 17:09:20 2019] ACPI Error: SMBus/IPMI/GenericSerialBus write requires Buffer of length 66, found length 32 (20160831/exfield-427)
[Mon Jan 21 17:09:20 2019] ACPI Error: Method parse/execution failed [\_SB.PMI0._PMM] (Node ffff96de2ec67ac8), AE_AML_BUFFER_LIMIT (20160831/psparse-543)
[Mon Jan 21 17:09:20 2019] ACPI Exception: AE_AML_BUFFER_LIMIT, Evaluating _PMM (20160831/power_meter-338)

Event Timeline

aborrero created this task.Jan 21 2019, 5:10 PM
aborrero triaged this task as Normal priority.
Restricted Application added a project: Operations. · View Herald TranscriptJan 21 2019, 5:10 PM
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This is known/expected, it is due to the acpi_power_meter kernel module which we are blacklisting, a reboot or manually unloading the module stops the messages

aborrero closed this task as Resolved.Jan 22 2019, 12:49 PM

This is known/expected, it is due to the acpi_power_meter kernel module which we are blacklisting, a reboot or manually unloading the module stops the messages

You are right! Thanks for the pointer. Errors are gone after a reboot.