memtester - Linux Guide

memteset is a userspace programming for testing RAM for errors. See: https://pyropus.ca./software/memtester/

Guide based on a minimal Rocky 8.7 w/ kernel: 4.18.0-425.3.1.el8.x86_64 

Pre-requisites

yum install wget
yum install edac-util
yum install make
yum install gcc

You will also need to compile memtester from source, this means you need the associated "kernel-headers" package for the running kernel version.

Note that depending on your kernel version, the relevant kernel-headers may not be available via the package manager (ie: yum)

For example running 

yum list --showduplicates kernel-headers

will list much newer versions than we need. Therefore you may need to search and download the correct package from the internet. In this instance, we can find kernel-headers-4.18.0-425.3.1.el8.x86_64.rpm online and download/install like so:

mkdir /opt/kernel-stuff

cd /opt/kernel-stuff/

wget https://get.hpc.dev/vault/kernel/4.18.0-425.3.1.el8.x86_64/kernel-headers-4.18.0-425.3.1.el8.x86_64.rpm

rpm -ivh kernel-headers-4.18.0-425.3.1.el8.x86_64.rpm

Compile memtester

mkdir /opt/memtester

cd /opt/memtester/

wget https://pyropus.ca./software/memtester/old-versions/memtester-4.7.1.tar.gz

tar -zxf memtester-4.7.1.tar.gz

cd /opt/memtester/memtester-4.7.1

make

Running memteser

See: https://pyropus.ca./software/memtester/ 

./memteser [RAM to consume]

example:

./memtester 120G