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Re: [Xen-users] Attempting to checksum a non-TCP/UDP packet errors rolli

To: Brandon Lamb <brandonlamb@xxxxxxxxx>
Subject: Re: [Xen-users] Attempting to checksum a non-TCP/UDP packet errors rolling across screen
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Sat, 10 Apr 2010 14:19:39 +0300
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On Fri, Apr 09, 2010 at 06:40:04PM -0700, Brandon Lamb wrote:
> Hello,
> 
> Just did a fresh install of xen-4.0 and using the 2.6.31.13 dom0 kernel.
> 
> I have 6 linux debian guests running, and on my host console i am
> getting these errors rolling pretty constantly.
> 
> "Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet"
> 
> I tried doing the ethtool -K eth0 tx off and same thing on peth0,
> using bridged mode for network config.
> 
> Any tips? Google is failing me, im not sure what to even search for
> other than "xen Attempting to checksum a non-TCP/UDP packet".
> 
> Im wondering if this has something to do with why my guests were
> seeming to have network timeout/freezing problems, I thought maybe
> upgrading from 3.4 to 4.0 would magically solve it.
> 

All the networking stuff is done on the dom0 Linux kernel,
so Xen upgrade doesn't affect that.

Although most probably you also upgraded dom0 kernel..

Can you please post output of:

- ethtool peth0
- ethtool -i peth0
- brctl show
- ifconfig -a

Thanks.

-- Pasi


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