Memory Testing

Install the memtester utility from the software repository, if it is not already installed.

Ubuntu/Debian and Linux Mint:

sudo apt-get install memtester

Fedora/RHEL/RPM:

yum install memtester

As root, run the test:

memtester <memory size> <repetitions>

... where:

• <memory size> is in megabytes
• <repetitions> is the number of times the full suite will be run

To get the exit status:

echo $?

Possible values:

• x00: success
• x01: Error allocating or locking memory, or invocation error
• x02: Error during stuck address test
• x04: Error during one of the other tests.

(excerpted from https://www.techwalla.com/articles/how-to-test-the-ram-on-linux)