Version

v20.0.0-nightly20230414c94be4125b

Platform

Linux server 5.15.0-69-generic #76-Ubuntu SMP Fri Mar 17 17:19:29 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

Subsystem

No response

What steps will reproduce the bug?

touch loader.js echo "setInterval(() => {}, 1000);" > test.cjs node --loader ./loader.js test.cjs

How often does it reproduce? Is there a required condition?

No response

What is the expected behavior? Why is that the expected behavior?

Node.js starts up without loading the provided loader over and over again.

What do you see instead?

Node.js spams the console with the following warning while the memory and CPU usage climbs until it's stopped / OOMs.

(node:5652) ExperimentalWarning: Custom ESM Loaders is an experimental feature and might change at any time (Use `node --trace-warnings ...` to show where the warning was created) 

Additional information

Possibly relevant #44710