sysrq control – linux

/proc/sys/kernel/sysrq

0 – disable sysrq completely
1 – enable all functions of sysrq
2 – enable control of console logging level
4 – enable control of keyboard (SAK, unraw)
8 – enable debugging dumps of processes etc.
16 – enable sync command
32 – enable remount read-only
64 – enable signalling of processes (term, kill, oom-kill)
128 – allow reboot/poweroff
256 – allow nicing of all RT tasks

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