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    SubjectRe: Where is RLIMIT_RT_CPU?
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    On Sun, 2006-07-16 at 01:04 +1000, Jean-Marc Valin wrote:
    > > as long as you can fork and exec as many of those processes as you want
    > > a per process rlimit is useless security wise... an evil user just fires
    > > off a second process just before the first one gets killed and a non-RT
    > > root still is starved out.
    >
    > Of course, which is why the idea is for the limit to be global, across
    > all non-root users. AFAIK, that's what Ingo's original (pre-2.6.12)
    > patch did and also what Con Kolivas' SCHED_ISO patch does. That's also
    > why I think it would be very hard (if possible at all) to do this in
    > user space.

    I don't think it's a problem. If the admin does not want non-root users
    to be able to lock up the machine, just don't put them in the realtime
    group.

    Lee

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