kernel: ACPI Error, AE_NOT_EXIST, Region IPMI, Region [POWR], \_SB.PMI0._PMM

[KoenDierckx]

ProLiant DL385 Gen10 Plus v2

A42 v2.60 (08/11/2022)

Ubuntu 20.04 LTS, all patches applied

dmesg output:

#   kernel: ACPI Error: Aborting method \_SB.PMI0._PMM due to previous error (AE_NOT_EXIST) (20190816/psparse-529)
#   kernel: ACPI Error: AE_NOT_EXIST, Evaluating _PMM (20190816/power_meter-325)
#   kernel: ACPI Error: No handler for Region [POWR] (0000000049789c7e) [IPMI] (20190816/evregion-129)
#   kernel: ACPI Error: Region IPMI (ID=7) has no handler (20190816/exfldio-261)

Workaround, as stated in old topic here

https://community.hpe.com/t5/proliant-servers-ml-dl-sl/kernel-acpi-error-region-ipmi-id-7-has-no-handler-20190816/m-p/7179184#.Y5bW0HbMKHQ 

echo "blacklist acpi_power_meter" >> /etc/modprobe.d/hwmon.conf

[ksram]

Hi @KoenDierckx ,

Good day!

Thank you for the new Post.

We checked and see that this issue is caused as there is no Driver to handle the "IPMI" and you may ignore the messages.

And would be better to conatct the OS team to check further if issue after persists after the workaround.

Thank you
RamKS

[KoenDierckx · Accepted solution]

Just found the solution, but not here...

https://wiki.froberg.org/en/hp-proliant-acpi-error-power-meter

So instead of ignoring the module as suggested, we just needed to fix the dependencies for it

/etc/modprobe.d/hwinfo.conf

install ipmi_si
install acpi_ipmi
install acpi_power_meter