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Date: Fri, 11 May 2007 18:04:31 -0400
From: Diane Bruce <db@db.net>
To: Kris Kennaway <kris@obsecurity.org>
Message-ID: <20070511220431.GA45104@night.db.net>
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Cc: Roger Miranda <rmiranda@digitalrelay.ca>, freebsd-stable@freebsd.org
Subject: Re: Hard Hang, nothing in logs / no panics
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On Fri, May 11, 2007 at 05:47:35PM -0400, Kris Kennaway wrote:
> On Fri, May 11, 2007 at 04:43:06PM -0500, Roger Miranda  wrote:
> >
> > > You missed that the debugger is there to debug bugs (including
> > > deadlocks).  Break to the debugger and obtain the necessary debugging
> >
> > I should've been more clear.  I can not break to the debugger (CTRL-ALT-ESC)
> > when the system locks up.
>
> You may need the KDB_STOP_NMI option, especially if it is an SMP

He can also try a serial console, if he can scare up something to use
as a serial console. Serial ports are becoming legacy but if he can
do it, it might help him.

- Diane
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- db@FreeBSD.org db@db.net http://www.db.net/~db