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Add a really weird trick

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Anthony Wang 2021-03-02 11:04:05 -06:00
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_posts/2021-02-21-weirder-linux-tricks.md
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@ -28,3 +28,8 @@ Pass the `mitigations=off` kernel parameter in your bootloader to disable all CP
Don't run `:(){:|:&};:`. Don't do it. If you want to take the risk, first limit the number of processes you can run with `ulimit`. You've been warned.
## `sudo rm -rf /dev/cpu/0/`
OK, not really, but you can do `echo 0 | sudo tee /sys/devices/system/cpu/cpu0/online` to disable CPU 0. Just don't try to take down all your processors at the same time.