I have a problem with web browsers going rogue and locking up my computer such that I have to hard restart. I want to set vm.overcommit_memory=2 to try to invoke the OOM killer before a browser locks up my computer. When I do, though, SDDM will start normally, I'll log in but it'll freeze up whilst plasmashell is loading. I have 4GB of RAM and 4GB of swap. Is it not possible to set vm.overcommit _memory on a KDE system?