kernel: ocfs2: Unaligned AIO/DIO on inode <xxxxx> on device dm-X by loopN

(Doc ID 1663568.1)

Last updated on NOVEMBER 22, 2017

Applies to:

Linux OS - Version 1.2 and later
Linux x86
Linux x86-64

Symptoms

Message "ocfs2: Unaligned AIO/DIO" is observed in system logs continuously:

[root@ovs ~]# grep -H "Unaligned AIO" /var/log/messages*
/var/log/messages:Apr 16 02:10:25 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 1215793 on device dm-1 by loop1
/var/log/messages:Apr 17 02:41:03 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 1445154 on device dm-2 by loop0
/var/log/messages.2:Apr 1 22:04:59 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 44105990 on device dm-1 by loop1
/var/log/messages.2:Apr 2 01:17:17 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 1215790 on device dm-2 by loop0
/var/log/messages.2:Apr 2 01:57:31 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 44105990 on device dm-0 by loop0
/var/log/messages.2:Apr 2 02:43:40 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 1215790 on device dm-2 by loop0
/var/log/messages.2:Apr 2 04:16:27 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 1215790 on device dm-2 by loop0
/var/log/messages.2:Apr 2 21:32:22 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 1215793 on device dm-2 by loop1
/var/log/messages.2:Apr 3 00:17:42 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 1215790 on device dm-1 by loop0
/var/log/messages.3:Mar 23 12:01:08 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 1215793 on device dm-1 by loop1
/var/log/messages.3:Mar 23 19:18:21 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 1215790 on device dm-1 by loop0
/var/log/messages.3:Mar 25 02:30:45 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 16711938 on device dm-2 by loop0
/var/log/messages.3:Mar 26 02:52:17 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 44105990 on device dm-1 by loop2
/var/log/messages.3:Mar 27 02:52:26 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 44105990 on device dm-1 by loop2
/var/log/messages.4:Mar 19 07:50:18 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 1215790 on device dm-1 by loop0
/var/log/messages.4:Mar 20 08:00:22 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 1215793 on device dm-1 by loop3
/var/log/messages.4:Mar 21 08:00:32 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 1215793 on device dm-1 by loop3
/var/log/messages.4:Mar 22 12:37:58 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 1445154 on device dm-1 by loop1
/var/log/messages.4:Mar 22 11:51:07 ovs kernel: ocfs2: Unaligned AIO/DIO on inode 1215793 on device dm-1 by loop1

 

 

Cause

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