Re: Spontan reboot of FreeBSD 4,x box

From: Dennis Pedersen (mlists_at_daydreamer.dk)
Date: 05/30/03

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    To: "Don Bowman" <don@sandvine.com>
Date: Fri, 30 May 2003 12:53:40 +0200

    If i understand the man page of periodic correctly then it should'nt run if
    cron is'nt running? (ps aux |grep cron gives nothing and cron_enable is set
    to 'NO' in rc.conf)
    Can i simply remove the scripts from daily to make sure nothing is running
    from there or will that possibly crash the box? (i dont have access to the
    box with anything other than ssh right now.)
    Memory i having trouoble beliving in , its 3 different box's. 2 running 4,4
    and one running 4,7. All on different hardware (except the nics are 3com,
    not same model.)

    Regards,
    Dennis

    ----- Original Message -----
    From: "Don Bowman" <don@sandvine.com>
    To: "'Dennis Pedersen'" <mlists@daydreamer.dk>; "Don Bowman"
    <don@sandvine.com>; <freebsd-net@FreeBSD.org>
    Sent: Wednesday, May 28, 2003 10:49 PM
    Subject: RE: Spontan reboot of FreeBSD 4,x box

    well, I would speculate that your /etc/periodic is
    running @ 3am doing things like looking for setuid files,
    pruning /tmp, etc, which sparks up some disk activity, forks
    a few processes, walks the filesystem, etc, which is tripping some
    bug you have in the kernel, or bad memory. [i have a version
    of memtest86 which can be loaded from 'loader' and placed on
    a fbsd file system if you wish to try the bad memory theory
    conveniently].

    I have a similar problem in 4.7 that occurs once in a while
    @ 3:01am which seems to randomly corrupt memory. I've been
    chasing it for a while but is hasn't been reproducible enough
    to find.

    This is pure speculation.

    man 8 periodic
    see /etc/periodic.conf

    > -----Original Message-----
    > From: Dennis Pedersen [mailto:mlists@daydreamer.dk]
    > Sent: May 28, 2003 16:46
    > To: Don Bowman; freebsd-net@FreeBSD.org
    > Subject: Re: Spontan reboot of FreeBSD 4,x box
    >
    >
    >
    > ----- Original Message -----
    > From: "Don Bowman" <don@sandvine.com>
    > To: "'Dennis Pedersen'" <mlists@daydreamer.dk>;
    > <freebsd-net@FreeBSD.org>
    > Sent: Wednesday, May 28, 2003 3:56 PM
    > Subject: RE: Spontan reboot of FreeBSD 4,x box
    >
    >
    > > > From: Dennis Pedersen [mailto:mlists@daydreamer.dk]
    > > >
    > > > I have a couple of FreeBSD 4,4 and one 4,7 that are beeing
    > > > used as firewalls
    > > > in different locations.
    > > > Lately i haven noticed that one of the firewall's was
    > > > starting to reboot at
    > > > a certin time of the day (give or take maybe 10min).
    > >
    > > The time it resets wouldn't correlate to the periodic (e.g.
    > > 3am) would it?
    >
    > On one of the box´s that fits yeah..
    > What am i missing?
    > cron_enable is set to no in rc.conf and the cron deamon isnt running?
    >
    >
    > Regards,
    > Dennis
    >

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