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From: Don Head (DHeadwavetech.com)
Date: Thu Feb 22 2001 - 11:50:57 CST

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    > > Why does modutils need "vixie-cron >= 3.0.1-31" ???
    >
    > $ rpm -ql modutils |grep cron
    > /etc/cron.d/kmod
    > $ cat /etc/cron.d/kmod
    > # rmmod -a is a two-hand sweep module cleaner
    > */10 * * * * root /sbin/rmmod -as
    >
    > Thus the modutils uses cron to clean uneeded modules every 10 minutes.

    <OFF-TOPIC RANT>
    Just as an FYI, I have had a few intermitant problems
    with a couple systems, and the only thing I can track it
    back to is this process (the kmod cron job). I have
    disabled it on all of my systems, and they have run
    without a problem ever since.

    On two systems, it apparently did something to corrupt
    the network card's module, although lsmod still showed it
    as loaded. No traffic what-so-ever could pass through.
    Being sort of an uptime guy (I really don't belive in
    rebooting a Linux box, unless you're changing a kernel,
    there's no need), I ended up taking the system down to
    runlevel 1, downing the interface, removing the module,
    modprobe'ing it back in, and then bringing the interface
    back up. The only thing in the logs that happened at the
    same moment I lost connectivity was that kmod cron job.

    Like I said, this is something that has happened a couple
    of times. I have 2 Mdk7.2 systems with > 100 days of
    uptime and another that's rebooted somewhat frequently.
    It's happened to at least two of them, but the instances
    were few and far between, and since it's been disabled,
    hasn't happened at all.
    </OFF-TOPIC RANT>

    Don Head
    SAIR LCA, CIW-P, Network+, A+

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