From owner-freebsd-hackers@FreeBSD.ORG  Tue Jun  8 14:59:25 2004
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from green.homeunix.org (freefall.freebsd.org [216.136.204.21])
	by hub.freebsd.org (Postfix) with ESMTP
	id EB30216A4CE; Tue,  8 Jun 2004 14:59:24 +0000 (GMT)
Received: from green.homeunix.org (green@localhost [127.0.0.1])
	by green.homeunix.org (8.12.11/8.12.11) with ESMTP id i58ExN8S028130;
	Tue, 8 Jun 2004 10:59:24 -0400 (EDT)
	(envelope-from green@green.homeunix.org)
Received: (from green@localhost)
	by green.homeunix.org (8.12.11/8.12.11/Submit) id i58ExMNo028129;
	Tue, 8 Jun 2004 10:59:22 -0400 (EDT)
	(envelope-from green)
Date: Tue, 8 Jun 2004 10:59:21 -0400
From: Brian Feldman <green@freebsd.org>
To: Alan Evans <evans.alan@sbcglobal.net>
Message-ID: <20040608145921.GD23083@green.homeunix.org>
References: <20040606010831.85923.qmail@web80106.mail.yahoo.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20040606010831.85923.qmail@web80106.mail.yahoo.com>
User-Agent: Mutt/1.5.6i
cc: hackers@freebsd.org
Subject: Re: machine is unusable with panic: vrele: negative ref cnt
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 08 Jun 2004 14:59:25 -0000

On Sat, Jun 05, 2004 at 06:08:31PM -0700, Alan Evans wrote:
> On boot I see the following on an IBM T30 laptop:
> 
> Mounting root from ufs:/dev/ad0s1a
> WARNING: / was not properly dismounted
> ad0: FAILURE - READ_MUL status=59<READY,DSC,DRQ,ERROR>
> error=40<UNCORRECTABLE> LBA=376639

I would stick that drive in another machine and try to get SMART
status information from it.  There is a port for smartmontools
that can be very informative about the health of the drive.

-- 
Brian Fundakowski Feldman                           \'[ FreeBSD ]''''''''''\
  <> green@FreeBSD.org                               \  The Power to Serve! \
 Opinions expressed are my own.                       \,,,,,,,,,,,,,,,,,,,,,,\