From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <xfs-bounces@oss.sgi.com>
Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15])
	by oss.sgi.com (Postfix) with ESMTP id A1E517F78
	for <xfs@oss.sgi.com>; Fri,  4 Apr 2014 16:20:35 -0500 (CDT)
Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25])
	by relay3.corp.sgi.com (Postfix) with ESMTP id 1CAC8AC003
	for <xfs@oss.sgi.com>; Fri,  4 Apr 2014 14:20:31 -0700 (PDT)
Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net
	[150.101.137.131]) by cuda.sgi.com with ESMTP id
	rhSLx9pIsC6MVEs4 for <xfs@oss.sgi.com>;
	Fri, 04 Apr 2014 14:20:29 -0700 (PDT)
Date: Sat, 5 Apr 2014 08:20:16 +1100
From: Dave Chinner <david@fromorbit.com>
Subject: Re: xfs umount with i/o error hang/memory corruption
Message-ID: <20140404212016.GY17603@dastard>
References: <CALjwKZAJ-R8dS13Rsj3+K3hM9p0z08qvi4ZVTYbDWKT1Biu=-Q@mail.gmail.com>
MIME-Version: 1.0
Content-Disposition: inline
In-Reply-To: <CALjwKZAJ-R8dS13Rsj3+K3hM9p0z08qvi4ZVTYbDWKT1Biu=-Q@mail.gmail.com>
List-Id: XFS Filesystem from SGI <xfs.oss.sgi.com>
List-Unsubscribe: <http://oss.sgi.com/mailman/options/xfs>,
	<mailto:xfs-request@oss.sgi.com?subject=unsubscribe>
List-Archive: <http://oss.sgi.com/pipermail/xfs>
List-Post: <mailto:xfs@oss.sgi.com>
List-Help: <mailto:xfs-request@oss.sgi.com?subject=help>
List-Subscribe: <http://oss.sgi.com/mailman/listinfo/xfs>,
	<mailto:xfs-request@oss.sgi.com?subject=subscribe>
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Errors-To: xfs-bounces@oss.sgi.com
Sender: xfs-bounces@oss.sgi.com
To: Bob Mastors <bob.mastors@solidfire.com>
Cc: xfs@oss.sgi.com
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