ACPI Error: No handler for Region

Issue
An error appears during boot:

ACPI Error: No handler for Region [SYSI]
ACPI Error: Region IPMI (ID=7) has no handler

Environment

• CloudLinux OS 7/7 hybrid

Solution

1. Disable the "acpi_power_meter" kernel module by running the following command:
   

    modprobe -r acpi_power_meter

2. Add the following line to the /etc/modprobe.d/acpi.conf to blacklist it: 
   

   blacklist acpi_power_meter

Cause

• The acpi_power_meter module incompatibility