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It's fine until you run out of disk space
(lemmy.world)
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this post was submitted on 02 Oct 2023
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It never kicks in for me when it should, but I figured out I can force trigger it manually with the magic SysRq key (Alt+SysRq+F, needs to be enabled first), which instantly recovers my system when it starts freezing from memory pressure.
Do note that this opens up a security hole. Since this can kill any app at random and is not interceptable, if you leave your PC in a public place, someone could come up and press this combo a few times. Chances are, it'll kill whatever the locking app you're using.