From mboxrd@z Thu Jan  1 00:00:00 1970
From: Vasily Evseenko <svpcom@gmail.com>
Subject: Re: domU crash with kernel BUG at
	drivers/net/xen-netfront.c:305
Date: Tue, 31 Dec 2013 18:23:54 +0400
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To: William Dauchy <wdauchy@gmail.com>
Cc: Wei Liu <wei.liu2@citrix.com>, xen-devel <xen-devel@lists.xen.org>
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I've found workaround:
Run  "ethtool -K vifX.Y  tx off tso off gso off"
on dom0 side (in addition to "ethtool -K eth0 tx off tso off gso off"  
on domU).
Disabling offloading only in domU is not sufficient.


On 12/31/2013 04:56 PM, William Dauchy wrote:
> On Fri, Dec 27, 2013 at 1:21 PM, Vasily Evseenko <svpcom@gmail.com> wrote:
>> There are no clear steps to reproduce.
>> Bug triggered only by high tcp network load (webserver pattern - many
>> small connections) every one - two days.
>> See xen, dom0 and domU's info in attachment. I can provide any
>> additional info.
>> I've tried dom0/domU kernels 3.10.23 (vanilla, from centos-xen) and
>> 3.10.25,  xen 4.2.3 and 4.3.1.
> maybe testing with kmemleak enabled on the domU will help getting more info.