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Comment by ttctciyf

1 day ago

Well, there is: https://en.wikipedia.org/wiki/Magic_SysRq_key

That's not the same thing at all.

  • No, it's not. It has various functionality, as shown by the built-in help:

    > Example output of the SysRq+h command:

    > sysrq: HELP : loglevel(0-9) reboot(b) crash(c) terminate-all-tasks(e) memory-full-oom-kill(f) kill-all-tasks(i) thaw-filesystems(j) sak(k) show-backtrace-all-active-cpus(l) show-memory-usage(m) nice-all-RT-tasks(n) poweroff(o) show-registers(p) show-all-timers(q) unraw(r) sync(s) show-task-states(t) unmount(u) force-fb(v) show-blocked-tasks(w) dump-ftrace-buffer(z) dump-sched-ext(D) replay-kernel-logs(R) reset-sched-ext(S)

    But note "sak (k)".

  • Like the GP says in sibling, Alt+SysRq+K is SAK on Linux. But it doesn't work with graphical environments.