From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Campbell <Ian.Campbell@citrix.com>
Subject: Re: dom0 kenrel crashes for openstack + libvirt + libxl
Date: Thu, 13 Nov 2014 08:12:25 +0000
Message-ID: <1415866345.31613.22.camel@citrix.com>
References: <CA+J9cpa8bR0v9Po1ZmTiPbdat7XbmiVYyg0ALPq+gtHxf3WGeA@mail.gmail.com>
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To: Xing Lin <linxingnku@gmail.com>
Cc: xen-devel@lists.xen.org
List-Id: xen-devel@lists.xenproject.org

On Wed, 2014-11-12 at 11:41 -0700, Xing Lin wrote:

> 
> [ 9448.347994] ------------[ cut here ]------------
> [ 9448.348004] WARNING: CPU: 1 PID: 19902 at /build/buildd/linux-3.13.0/mm/mmap.c:2736 exit_mmap+0x16b/0x170()
> ==== more message ignored ====

The most interesting bits of the message are likely to be the lines
which follow here, i.e. the kernel stack trace and associated info.
Please can you paste the complete log from "cut here" until the end.

Ian.