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Date: Mon, 19 Sep 2011 15:49:13 +0300
From: Andriy Gapon <avg@FreeBSD.org>
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To: Arnaud Lacombe <lacombar@gmail.com>
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Cc: Poul-Henning Kamp <phk@phk.freebsd.dk>,
	FreeBSD-Current <freebsd-current@FreeBSD.org>
Subject: Re: Very imprecise watchdogd(8) timeout
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on 16/09/2011 23:59 Arnaud Lacombe said the following:
> in which case the current notifier-based architecture is broken. You
> may want to have a soft-watchdog triggering after 5s, and a fallback
> hardware watchdog triggering after 60s.

So let's start with the real problem, FreeBSD watchdog infrastructure doesn't
expose an API to do what you described above.
I think that it would be a rather small part to change the representation of
timeouts from current form to, say, value + unit encoding.

-- 
Andriy Gapon