Wooow, thanks a lot! I'm going to test it now.

Edit: Not working as expected :(

Run python script that allocated a couple of gigabytes of RAM effectively causing my machine to freeze. And OOM killer figured out the best thing it can do is this:

  [2889118.406439] Out of memory: Kill process 11878 (SpotifyHelper) score 302 or sacrifice child
  [2889118.406442] Killed process 11878 (SpotifyHelper)