From owner-freebsd-stable@FreeBSD.ORG  Fri May 11 21:20:49 2007
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From: "Roger Miranda" <rmiranda@digitalrelay.ca>
Organization: Digital Relay Inc.
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Date: Fri, 11 May 2007 16:21:25 -0500
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Cc: Kris Kennaway <kris@obsecurity.org>
Subject: Re: Hard Hang, nothing in logs / no panics
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On Friday 11 May 2007 16:00, Kris Kennaway wrote:
> See the developers handbook chapter on kernel debugging.

Kris,  I have gone through the kernel debugging sections of the developers 
handbook.  The one problem is when I get a hard hang, I do not get any error 
or panics.  And there is no crash or dump data on reboot. Yes. I have enabled 
DDB and KDB and a dumpdir (in /etc/rc.conf)

Am I missing something in the kernel debugging section?  I see "11.9 Debugging 
Deadlocks" talk about Deadlocks.  But at the time of the lock I have no way 
of doing a ps or really anything as the system is locked up solid.

Roger