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    SubjectRe: Resource limits
    On Mon, Sep 26, 2005 at 05:18:17PM +0300, Al Boldi wrote:
    > Rik van Riel wrote:
    > > On Sun, 25 Sep 2005, Al Boldi wrote:
    > > > Resource limits in Linux, when available, are currently very limited.
    > > >
    > > > i.e.:
    > > > Too many process forks and your system may crash.
    > > > This can be capped with threads-max, but may lead you into a lock-out.
    > > >
    > > > What is needed is a soft, hard, and a special emergency limit that would
    > > > allow you to use the resource for a limited time to circumvent a
    > > > lock-out.
    > > >
    > > > Would this be difficult to implement?
    > >
    > > How would you reclaim the resource after that limited time is
    > > over ? Kill processes?
    >
    > That's one way, but really, the issue needs some deep thought.
    > Leaving Linux exposed to a lock-out is rather frightening.
    >
    What exactly is it that you're worried about here? Do you have a particular
    concern that a process won't be able to fork or create a thread? Resources that
    can be allocated to user space processes always run the risk that their
    allocation will not succede. Its up to the application to deal with that.

    > Neil Horman wrote:
    > > Whats insufficient about the per-user limits that can be imposed by the
    > > ulimit syscall?
    >
    > Are they system wide or per-user?
    >
    ulimits are per-user.
    Neil

    > --
    > Al
    >
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