I heard Lisp machines would just stop everything and give you a REPL so you have a chance to clean things up, or just reboot. I don't see why modern systems can

I heard Lisp machines would just stop everything and give you a REPL so you have a chance to clean things up, or just reboot. I don't see why modern systems can't reserve some amount of memory for such a recovery process. In my Linux experience I'm either saved by the OOM Killer (which is dubious 'safety' at best) or the system just hardlocks and I have to either REISUB or sometimes force a power off.