ACPI Error: SMBus/IPMI/GenericSerialBus write requires Buffer of length 66, found length 32

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In /var/log/messages once or frequently the following messages appear, Hewlett Packard hardware bios related bug 

Nov 15 21:17:29 hostname kernel: ACPI Error: AE_AML_BUFFER_LIMIT, Evaluating _PMM (20180531/power_meter-338)
Nov 15 21:17:34 hostname kernel: ACPI Error: SMBus/IPMI/GenericSerialBus write requires Buffer of length 66, found length 32 (20180531/exfield-393)
Nov 15 21:17:34 hostname kernel: ACPI Error: Method parse/execution failed \_SB.PMI0._PMM, AE_AML_BUFFER_LIMIT (20180531/psparse-516)
Nov 15 21:17:34 hostname kernel: ACPI Error: AE_AML_BUFFER_LIMIT, Evaluating _PMM (20180531/power_meter-338)
Nov 15 21:17:40 hostname kernel: ACPI Error: SMBus/IPMI/GenericSerialBus write requires Buffer of length 66, found length 32 (20180531/exfield-393)
Nov 15 21:17:40 hostname kernel: ACPI Error: Method parse/execution failed \_SB.PMI0._PMM, AE_AML_BUFFER_LIMIT (20180531/psparse-516)
Nov 15 21:17:40 hostname kernel: ACPI Error: AE_AML_BUFFER_LIMIT, Evaluating _PMM (20180531/power_meter-338)

CloudLinux 7 and cPanel Resolution

execute the following command on running Linux systems

root@ds77 [~]# rmmod acpi_power_meter

or

root@ds77 [~]# modprobe -r acpi_power_meter

Make it permanent, CentOS / RHEL / CloudLinux Disable and Blacklist acpi_power_meter Kernel Module to prevent it from loading automatically

root@ds77 [~]# echo "blacklist acpi_power_meter" >> /etc/modprobe.d/hwmon.conf

Reboot 🙂

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