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Date: Sun, 22 Aug 2010 00:02:40 +0300
From: Andriy Gapon <avg@icyb.net.ua>
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To: Stefan Bethke <stb@lassitu.de>
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Cc: FreeBSD Stable <freebsd-stable@freebsd.org>
Subject: Re: ichwd causes freeze instead of reset
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on 21/08/2010 23:33 Stefan Bethke said the following:
> Hi,
> 
> somewhat foolishly, I activated watchdogd and ichwd on a remote box, and
> while testing it (by suspending watchdogd), apparently the watchdog
> triggered.  But instead of resetting, the machine does not react anymore on
> the serial console.  I will have to wait until Monday to get physical access,
> so it might be hanging or just switched itself off; I have no way of telling
> right now.
> 
> ichwd probes as: ichwd0: <Intel ICH7 watchdog timer> on isa0 ichwd0: Intel
> ICH7 watchdog timer (ICH7 or equivalent) ppc0: cannot reserve I/O port range
> 
> (not sure why ppc0 is getting involved at that point.)
> 
> FreeBSD lokschuppen.zs64.net 8.1-PRERELEASE FreeBSD 8.1-PRERELEASE #30: Thu
> Jul 15 12:58:20 UTC 2010
> root@lokschuppen.zs64.net:/usr/obj/usr/src/sys/EISENBOOT  amd64
> 
> Once the box is up again, is it worthwile trying ichwd again, should I try
> and use SW_WATCHDOG, or forget about it?

Just test it more while having physical access before making any conclusions.
There could be a number of radically different possibilities ranging from
hardware peculiarities to configuration problems to pilot errors to etc.

-- 
Andriy Gapon