From owner-freebsd-hackers  Thu Sep 12  6:15:36 2002
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Date: Thu, 12 Sep 2002 08:15:31 -0500 (CDT)
From: mark tinguely <tinguely@web.cs.ndsu.nodak.edu>
Message-Id: <200209121315.g8CDFVJ55830@web.cs.ndsu.nodak.edu>
To: bms@spc.org, hackers@FreeBSD.ORG
Subject: Re: Supporting HW_WDOG?
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>  Is there any documentation, or source code, demonstrating how to implement
>  a hardware watchdog for FreeBSD using the HW_WDOG kernel option?

the HW_WDOG option attempts to keep the watchdog from expiring while
the core memory is being dumped to a IDE drive. The SCSI dadump()
does not use wdog_tickler.

your hardware watchdog driver will have to set the varible wdog_tickler
to your watch dog tickler routine, or a generic routine if multiple watchdog
timers could be supported in one machine.

--mark tinguely.

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