APEI Error Record Serialization Table (ERST) Debug Support

modulename: erst-dbg.ko

configname: CONFIG_ACPI_APEI_ERST_DEBUG

Linux Kernel Configuration
└─>Power management and ACPI options
└─>ACPI (Advanced Configuration and Power Interface) Support
└─>APEI Error Record Serialization Table (ERST) Debug Support
In linux kernel since version 4.2 (release Date: 2015-08-30)  
ERST is a way provided by APEI to save and retrieve hardware
error information to and from a persistent store. Enable this
if you want to debugging and testing the ERST kernel support
and firmware implementation.

source code: