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Date: Wed, 26 Mar 2008 21:28:21 +0100
From: Kris Kennaway <kris@FreeBSD.org>
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To: The-IRC Hosting Administration Team <Ryan@The-IRC.Org>
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Cc: freebsd-questions@freebsd.org
Subject: Re: Random System Lockup/Hangs Occurrences Without Any Trace
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The-IRC Hosting Administration Team wrote:
> Good Day,
> 
>  
> 
> For way over a month now, we have been experiencing strange system
> lockups/hangs and are dumbfounded by the true cause of these events. When
> the occurrence happens it causes anything remotely running via root (HTTP,
> SSH, any type of control panel, FTP, Email) and console access if frozen, it
> gives a login prompt but after entering "root" it goes nowhere.

Please see

http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html

and file a PR.

Kris