Yes, i learned it the hard way when debugging production outages. Gitlab's Praefact recommended VM sizes were too small for our usecase and we had, per provisioning defaults, no swap on all machines. 150 MB of binaries in virtual memory, only 50 MB disk cache left, this is where it made click for me.

If you want a hard OOM kill, i don't know. I'm only talking about the I/O lockup that happens in these situations.