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    SubjectRe: [RFD] Merge task counter into memcg
    (2012/04/18 1:52), Glauber Costa wrote:

    >
    >>> In short, I don't think it's better to have task-counting and fd-counting in memcg.
    >>> It's kmem, but it's more than that, I think.
    >>> Please provide subsys like ulimit.
    >>
    >> So, you think that while kmem would be enough to prevent fork-bombs,
    >> it would still make sense to limit in more traditional ways
    >> (ie. ulimit style object limits). Hmmm....
    >>
    >
    > I personally think this is namespaces business, not cgroups.
    > If you have a process namespace, an interface that works to limit the
    > number of processes should keep working given the constraints you are
    > given.
    >
    > What doesn't make sense, is to create a *new* interface to limit
    > something that doesn't really need to be limited, just because you
    > limited a similar resource before.
    >


    Ok, limitiing forkbomb is unnecessary. ulimit+namespace should work.
    What we need is user-id namespace, isn't it ? If we have that, ulimit
    works enough fine, no overheads.

    Thanks,
    -Kame



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