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    SubjectRe: [PATCH][2.5] hangcheck-timer
    On Tue, Jan 21, 2003 at 09:40:02AM -0800, Joel Becker wrote:

    > > I'm puzzled. What does this do that softdog.c doesn't ?
    >
    > First, softdog.c requires userspace interaction. Second, softdog.c
    > relies on jiffies. If the system goes out to lunch via udelay() or
    > another hardware call that freezes the CPUs for a bit, jiffies does not
    > increment. The system could be frozen for two minutes (qla2x00 used to
    > do this for 90 seconds) and softdog.c never notices, because jiffies
    > hasn't counted a single second during this time.

    Ok, seems to make sense now, thanks.
    Wouldn't this belong under drivers/char/watchdog too though ?
    It seems very 'watchdog-ish' to me.

    Dave

    --
    | Dave Jones. http://www.codemonkey.org.uk
    | SuSE Labs
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