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    SubjectRe: can I bring Linux down by running "renice -20 cpu_intensive_process"?


    Måns Rullgård wrote:

    >Jan Engelhardt <jengelh@linux01.gwdg.de> writes:
    >
    >
    >
    >>>Subject: can I bring Linux down by running "renice -20
    >>>cpu_intensive_process"?
    >>>
    >>>
    >>>
    >>Depends on what the cpu_intensive_process does. If it tries to allocate
    >>lots of memory, maybe. If it's _just_ CPU (as in `perl -e '1 while 1'`),
    >>you get a chance that you can input some commands on a terminal to kill it.
    >>SCHED_FIFO'ing or SCHED_RR'ing such a process is sudden death of course.
    >>
    >>
    >
    >Sysrq+n changes all realtime tasks to normal priority.
    >
    >
    >

    Patient: "Doctor When I poke myself in the eye it hurts."
    Doctor "Don't do that then."

    --
    Jeffrey Hundstad

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