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(allowing the same functions plus loglevel, unraw, and nice-all-RT-tasks) respectively.

Another past use was to kill a frozen graphical program, as the X Window System used to have complete control over the graphical mode and input devices.

Other ways to invoke Magic SysRq

While the magic SysRq key was originally implemented as part of the kernel's keyboard handler for debugging, the functionality has been also exposed via the proc filesystem

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