From owner-freebsd-stable@FreeBSD.ORG  Fri Jul 11 18:24:47 2014
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 75286C89;
 Fri, 11 Jul 2014 18:24:47 +0000 (UTC)
Received: from bigwig.baldwin.cx (bigwig.baldwin.cx [IPv6:2001:470:1f11:75::1])
 (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 4A2AF27D1;
 Fri, 11 Jul 2014 18:24:47 +0000 (UTC)
Received: from jhbbsd.localnet (unknown [209.249.190.124])
 by bigwig.baldwin.cx (Postfix) with ESMTPSA id 39C02B953;
 Fri, 11 Jul 2014 14:24:46 -0400 (EDT)
From: John Baldwin <jhb@freebsd.org>
To: freebsd-current@freebsd.org
Subject: Re: 10.0-RELEASE BTX halted on DELL R900
Date: Fri, 11 Jul 2014 14:21:39 -0400
User-Agent: KMail/1.13.5 (FreeBSD/8.4-CBSD-20140415; KDE/4.5.5; amd64; ; )
References: <53B659B7.3020202@gddsn.org.cn> <20140705060939.GA11739@flea.casa>
 <5881B5EA-B625-4E47-ADCB-3F2F894A8630@FreeBSD.org>
In-Reply-To: <5881B5EA-B625-4E47-ADCB-3F2F894A8630@FreeBSD.org>
MIME-Version: 1.0
Content-Type: Text/Plain;
  charset="iso-8859-15"
Content-Transfer-Encoding: 7bit
Message-Id: <201407111421.40097.jhb@freebsd.org>
X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.7
 (bigwig.baldwin.cx); Fri, 11 Jul 2014 14:24:46 -0400 (EDT)
Cc: stable@freebsd.org, current@freebsd.org, wsk <wsk@gddsn.org.cn>,
 questions@freebsd.org, Dimitry Andric <dim@freebsd.org>,
 Arrigo Marchiori <ardovm@yahoo.it>
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable/>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 11 Jul 2014 18:24:47 -0000

On Saturday, July 05, 2014 8:57:45 am Dimitry Andric wrote:
> > Just in case, you could try the patch attached to this bug:
> > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=176748
> > 
> > The patch was compiled for 9-STABLE; if it does not apply to the 10.0
> > sources, then drop me a line so I can adapt it.
> 
> I tried this patch on a few FreeBSD VMs, and each of them stopped being
> able to mount the root filesystem because of it.  I don't really know
> what the explanation is...

That patch is just wrong.  I've updated the PR with something that is probably
similar to your patch (explicitly ignore a size of zero back from EDD).

-- 
John Baldwin