MagicSysRq
Note: This article is currently only a draft and is a part of a series of articles I'm going to publish the next few months - if you want to contribute to it, please feel free to. However it would be nice if you could coordinate your efforts with me
MagicSysRQ describes a special key combination which can trigger certain functions directly in the Linux Kernel. This is particularly useful when your system appears to be hung, but is not totally locked up.