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Date:      Tue, 17 Mar 2009 19:17:23 +0100
From:      Harald Schmalzbauer <h.schmalzbauer@omnilan.de>
To:        Andriy Gapon <avg@freebsd.org>
Cc:        freebsd-current@freebsd.org, Mike Tancsa <mike@sentex.net>
Subject:   Re: ichwd on ich9 attach failing ?
Message-ID:  <49BFE933.9040706@omnilan.de>
In-Reply-To: <49BFAEB1.1010800@freebsd.org>
References:  <200810011405.m91E5ugg028685@lava.sentex.ca>	<200810011121.21908.jhb@freebsd.org> <49BD0943.3000400@OmniLAN.de> <200903161501.n2GF1bNw090788@lava.sentex.ca> <49BE81DB.6040208@icyb.net.ua> <49BFAEB1.1010800@freebsd.org>

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Andriy Gapon schrieb:
...
> BTW, Harald, I found your older report:
> http://lists.freebsd.org/pipermail/freebsd-current/2007-August/076381.html
> I wonder if that was with the same HW as now.

Hello, thanks all for your answers.
This is different hardware. Unfortuantely that box went in production,
but I'll see if I can fix another maschine, I have the S3200 Server
board in spare.

> I think that I got some additional evidence that SMI handler just clears timeout
> status bit and doesn't do anything else.
> 
> 1. When watchdogd is running TCO_RLD has value very close to value of TCO_TMR,
> e.g. TCO_TMR has 0x1C and TCO_RLD oscillates from 0x1C to 0x1A.
> When I kill -9 watchdogd then TCO_RLD value cycles from 4 to 1 (zero value is
[snip]
> but I do not see any options in my (Intel's actually) BIOS nor do I know of any
> other way.
> 
> Fortunately GBL_SMI_EN bit is not locked on my system as I have discovered, so I
> will try tonight to let watchdog timer expire with SMIs disabled.
> This is quite a sledge-hummer approach.

I'll try to understand that in a quiet minute, which won't happen before
next week :(
One thing which is also new to me is an attached IPMI wtachdog. No idea
about IPMI (yet) but maybe the wd-timer is just occupated by BMC/IPMI?!

ipmi0: IPMI device rev. 1, firmware rev. 0.2, version 2.0
ipmi0: Number of channels 2
ipmi0: Attached watchdog

Best regards,

-Harry



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