From owner-freebsd-questions@FreeBSD.ORG  Tue Dec  2 07:26:25 2008
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 5E5F61065672
	for <freebsd-questions@freebsd.org>;
	Tue,  2 Dec 2008 07:26:25 +0000 (UTC)
	(envelope-from fbsd.questions@rachie.is-a-geek.net)
Received: from mail.rachie.is-a-geek.net (rachie.is-a-geek.net [66.230.99.27])
	by mx1.freebsd.org (Postfix) with ESMTP id 3BE5A8FC1D
	for <freebsd-questions@freebsd.org>;
	Tue,  2 Dec 2008 07:26:25 +0000 (UTC)
	(envelope-from fbsd.questions@rachie.is-a-geek.net)
Received: from localhost (mail.rachie.is-a-geek.net [192.168.2.101])
	by mail.rachie.is-a-geek.net (Postfix) with ESMTP id 67369AFC1C6;
	Mon,  1 Dec 2008 22:26:24 -0900 (AKST)
From: Mel <fbsd.questions@rachie.is-a-geek.net>
To: freebsd-questions@freebsd.org
Date: Tue, 2 Dec 2008 08:26:20 +0100
User-Agent: KMail/1.9.7
References: <8fd8f02c0812012241t2a8517c5n5e5f69d965795b07@mail.gmail.com>
In-Reply-To: <8fd8f02c0812012241t2a8517c5n5e5f69d965795b07@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Message-Id: <200812020826.21345.fbsd.questions@rachie.is-a-geek.net>
Cc: Ji <lijimlee@gmail.com>
Subject: Re: mount problem after enabling serial console
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 02 Dec 2008 07:26:25 -0000

On Tuesday 02 December 2008 07:41:17 Ji wrote:
> Hi all,
>
> I ran into a weird problem when enabling serial console on the FreeBSD
> 7.0. Your help is really appreciated.
> I installed FreeBSD 7.0 amd64 (from the CD) on a Dell R200, and then
> enabled the serial console by adding the following to
> /boot/loader.conf
>
> hint.sio.0.flags="0x30"
> console="comconsole vidconsole"
> comconsole_speed="9600"
> boot_multicons="yes"
>
> And also replaced the following line on /etc/ttys
>
> ttyd0  "/usr/libexec/getty std.9600"   dialup  off secure
>
> with
>
> ttyd0   "/usr/libexec/getty std.9600"  vt220  on   secure.
>
> During rebooting, I found that the system hangs with the following
> messages and interrupt looks totally messed up
>
> "
> ...
> Trying to mount root from ufs:/dev/ad4s1a
>
> Manual root filesystem specification:
>   <fstype>:<device>  Mount <device> using filesystem <fstype>
>                        eg. ufs:da0s1a
>   ?                  List valid disk boot devices
>   <empty line>       Abort manual input
>
> mountroot>
>
> ..."
>
> And to my surprise, if I keep rebooting again and again without doing
> any fixing, the problem comes and goes, which confused me.
> When the problem is not present, the serial console looks working
> normally. Can anyone help me with that? Thanks a lot.
>
> Jim

> atapci0: <Intel ICH9 SATA300 controller> port
> 0xbc30-0xbc37,0xbc28-0xbc2b,0xbc38-0xbc3f,0xbc2c-0xbc2f,0xbc40-0xbc4f,0xbc5
>0-0xbc5f irq 6 at device 31.2 on pci0
> atapci0: unable to map interrupt
> device_attach: atapci0 attach returned 6

There's your problem. Atapci0 can't get an interrupt, which is the ata 
controller that controls your disk.

-- 
Mel

Problem with today's modular software: they start with the modules
    and never get to the software part.