From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bob Peterson <rpeterso@redhat.com>
Date: Thu, 12 Jan 2017 11:02:00 -0500 (EST)
Subject: [Cluster-devel] [PATCH 5/5] gfs2_edit: Fix unaligned accesses
 due	to saved_metablock size
In-Reply-To: <20170110143446.14419-6-anprice@redhat.com>
References: <20170110143446.14419-1-anprice@redhat.com>
	<20170110143446.14419-6-anprice@redhat.com>
Message-ID: <245600883.10033195.1484236920767.JavaMail.zimbra@redhat.com>
List-Id: <cluster-devel.redhat.com>
To: cluster-devel.redhat.com
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit

----- Original Message -----
| Each saved block is prefixed by a saved_metablock structure that holds
| its block number and data length. Unfortunately this structure is 10
| bytes in size, which means that storing the metadata header in memory
| immediately following it causes accesses to the header fields to be
| unaligned. This causes testsuite failures on sparc64. Instead, on
| restore, use a separate buffer for the block data to ensure aligned
| accesses to those fields.
| 
| Reported-By: Valentin Vidic <Valentin.Vidic@CARNet.hr>
| Signed-off-by: Andrew Price <anprice@redhat.com>
| ---

Hi,

ACK

Bob Peterson
Red Hat File Systems