From owner-freebsd-current@FreeBSD.ORG  Sun May  4 13:03:49 2003
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id 25D6937B401; Sun,  4 May 2003 13:03:49 -0700 (PDT)
Received: from heron.mail.pas.earthlink.net (heron.mail.pas.earthlink.net
	[207.217.120.189])	by mx1.FreeBSD.org (Postfix) with ESMTP
	id 96F9B43FAF; Sun,  4 May 2003 13:03:48 -0700 (PDT)
	(envelope-from tlambert2@mindspring.com)
Received: from pool0293.cvx40-bradley.dialup.earthlink.net ([216.244.43.38]
	helo=mindspring.com)
	by heron.mail.pas.earthlink.net with asmtp (SSLv3:RC4-MD5:128)
	(Exim 3.33 #1)	id 19CPi6-0001bw-00; Sun, 04 May 2003 13:03:47 -0700
Message-ID: <3EB571D0.2972A5C8@mindspring.com>
Date: Sun, 04 May 2003 13:02:24 -0700
From: Terry Lambert <tlambert2@mindspring.com>
X-Mailer: Mozilla 4.79 [en] (Win98; U)
X-Accept-Language: en
MIME-Version: 1.0
To: Robert Watson <rwatson@freebsd.org>
References: <Pine.NEB.3.96L.1030504122645.92658z-100000@fledge.watson.org>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-ELNK-Trace: b1a02af9316fbb217a47c185c03b154d40683398e744b8a49d01e0a288a34e89bb31284a47d39eb8350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c
cc: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>
cc: freebsd-current@freebsd.org
Subject: Re: panic: ffs_blkfree: freeing free frag
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 04 May 2003 20:03:49 -0000

Robert Watson wrote:
> On Mon, 5 May 2003, NAKAJI Hiroyuki wrote:
> > Sad news...
> >
> > Just after I posted this message, I got same panic again and lost some
> > files in my $HOME. :(
> 
> Could you boot to single user mode, manually fsck all of your file
> systems, and then try running your various load tests again?  Perhaps a
> free list problem persisted on disk after the fix left over from earlier
> operation with the bug...

FWIW, given the way this bug exhibits, this *WILL* happen;
once it's messed up, you *WILL* need a full fsck in single
user mode before it'll be usable again.  BG fsck *WILL NOT*
fix this (it only fixes overreferences, not underreferences).

-- Terry