From mboxrd@z Thu Jan  1 00:00:00 1970
From: Anthony Liguori <anthony@codemonkey.ws>
Subject: Re: Virtio network performance problem
Date: Wed, 03 Dec 2008 14:35:32 -0600
Message-ID: <4936ED94.2000706@codemonkey.ws>
References: <3D753CDC7D3A054CADC4DC2DF4C9F66502027873@LGC-MX01.corp.lehighgas.local>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: kvm@vger.kernel.org
To: Adrian Schmitz <aschmitz@lehighgas.com>
Return-path: <kvm-owner@vger.kernel.org>
Received: from mail-qy0-f11.google.com ([209.85.221.11]:63745 "EHLO
	mail-qy0-f11.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1751389AbYLCUfi (ORCPT <rfc822;kvm@vger.kernel.org>);
	Wed, 3 Dec 2008 15:35:38 -0500
Received: by qyk4 with SMTP id 4so4522123qyk.13
        for <kvm@vger.kernel.org>; Wed, 03 Dec 2008 12:35:36 -0800 (PST)
In-Reply-To: <3D753CDC7D3A054CADC4DC2DF4C9F66502027873@LGC-MX01.corp.lehighgas.local>
Sender: kvm-owner@vger.kernel.org
List-ID: <kvm.vger.kernel.org>

Adrian Schmitz wrote:
> I'm having a problem with virtio networking. I mentioned this in a
> previous thread, but I'm starting a new one since Dor solved the problem
> I reported in the original thread. This appears to be a new problem.
>   

On an older kernel, you'll likely see packet corruption with virtio-net 
because of an uninitialized variable.  Please try the patch I just 
posted (Fix uninitialized offset in virtio-net receive_header) and let 
me know if it helps.

Regards,

Anthony Liguori