From owner-freebsd-hackers  Mon Dec 15 12:36:53 1997
Return-Path: <owner-freebsd-hackers>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.7/8.8.7) id MAA10932
          for hackers-outgoing; Mon, 15 Dec 1997 12:36:53 -0800 (PST)
          (envelope-from owner-freebsd-hackers)
Received: from rover.village.org (rover.village.org [204.144.255.49])
          by hub.freebsd.org (8.8.7/8.8.7) with SMTP id MAA10919
          for <hackers@freebsd.org>; Mon, 15 Dec 1997 12:36:38 -0800 (PST)
          (envelope-from imp@village.org)
Received: from harmony [10.0.0.6] 
	by rover.village.org with esmtp (Exim 1.71 #1)
	id 0xhhFf-0007es-00; Mon, 15 Dec 1997 13:36:31 -0700
Received: from harmony.village.org (localhost [127.0.0.1]) by harmony.village.org (8.8.8/8.8.3) with ESMTP id NAA23973; Mon, 15 Dec 1997 13:36:24 -0700 (MST)
Message-Id: <199712152036.NAA23973@harmony.village.org>
To: Darren Reed <avalon@coombs.anu.edu.au>
Subject: Re: Bus/Processor specific I/O methods - was Re: Beginning SPARC port 
Cc: gurney_j@resnet.uoregon.edu, hackers@freebsd.org
In-reply-to: Your message of "Mon, 15 Dec 1997 18:50:36 +1100."
		<199712150750.XAA01781@hub.freebsd.org> 
References: <199712150750.XAA01781@hub.freebsd.org>  
Date: Mon, 15 Dec 1997 13:36:24 -0700
From: Warner Losh <imp@village.org>
Sender: owner-freebsd-hackers@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

In message <199712150750.XAA01781@hub.freebsd.org> Darren Reed writes:
: someone has nuked all your modules, you can still get up into single user
: mode.

That is a major problem on Solaris machines I do development on here.
If you have bugs in the device driver you are working on, it is often
the case that files critical to the booting of the system aren't there
and it is time to grab the cdrom and boot off of it to repair the
damage (or in extreme cases to reinstall the OS).

That said, it sure is nice being able to load/unload drivers all the
time w/o muich hassle.

Warner