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    SubjectRe: [PATCH 1/8] Scaling msgmni to the amount of lowmem
    Quoting Nadia Derbey (Nadia.Derbey@bull.net):
    > Serge E. Hallyn wrote:
    >> Quoting Luck, Tony (tony.luck@intel.com):
    >>>> Well, this printk had been suggested by somebody (sorry I don't remember
    >>>> who) when I first submitted the patch. Actually I think it might be
    >>>> useful for a sysadmin to be aware of a change in the msgmni value: we
    >>>> have the message not only at boot time, but also each time msgmni is
    >>>> recomputed because of a change in the amount of memory.
    >>>
    >>> If the message is directed at the system administrator, then it would
    >>> be nice if there were some more meaningful way to show the namespace
    >>> that is affected than just printing the hex address of the kernel
    >>> structure.
    >>>
    >>> As the sysadmin for my test systems, printing the hex address is mildly
    >>> annoying ... I now have to add a new case to my scripts that look at
    >>> dmesg output for unusual activity.
    >>>
    >>> Is there some better "name for a namespace" than the address? Perhaps
    >>> the process id of the process that instantiated the namespace???
    >> I agree with Tony here. Aside from the nuisance it is to see that
    >> message on console every time I unshare a namespace, a printk doesn't
    >> seem like the right way to output the info.
    >
    > But you agree that this is happening only because you're doing tests
    > related to namespaces, right?

    Yup :)

    > I don't think that in a "standard" configuration this will happen very
    > frequently, but may be I'm wrong.
    >
    >> At most I'd say an audit
    >> message.
    >
    > That's a good idea. Thanks, Serge. I'll do that.

    It'll probably still end up a printk for me, but it'll be my own fault
    for not setting up audit.

    > Regards,
    > Nadia

    thanks,
    -serge


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