Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753503Ab0AVXuh (ORCPT ); Fri, 22 Jan 2010 18:50:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752234Ab0AVXug (ORCPT ); Fri, 22 Jan 2010 18:50:36 -0500 Received: from mta2.srv.hcvlny.cv.net ([167.206.4.197]:59708 "EHLO mta2.srv.hcvlny.cv.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751275Ab0AVXuf (ORCPT ); Fri, 22 Jan 2010 18:50:35 -0500 Date: Fri, 22 Jan 2010 18:50:21 -0500 From: Michael Breuer Subject: Re: Hang: 2.6.32.4 sky2/DMAR (was [PATCH] sky2: Fix WARNING: at lib/dma-debug.c:902 check_sync) In-reply-to: <20100122234656.GC3105@del.dom.local> To: Jarek Poplawski Cc: David Miller , Stephen Hemminger , akpm@linux-foundation.org, flyboy@gmail.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Michael Chan , Don Fry , Francois Romieu , Matt Carlson Message-id: <4B5A39BD.8020305@majjas.com> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7BIT References: <20100120094103.GA6225@ff.dom.local> <4B58B217.8030001@majjas.com> <20100121204133.GB3085@del.dom.local> <4B59E7EB.3050605@majjas.com> <20100122215304.GA3105@del.dom.local> <4B5A2362.6000306@majjas.com> <20100122230605.GB3105@del.dom.local> <4B5A33D8.90501@majjas.com> <20100122234656.GC3105@del.dom.local> User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.7) Gecko/20100111 Lightning/1.0b2pre Thunderbird/3.0.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 968 Lines: 24 On 1/22/2010 6:46 PM, Jarek Poplawski wrote: > On Fri, Jan 22, 2010 at 06:25:12PM -0500, Michael Breuer wrote: > > > You wrote earlier: > >> [...] Also, there is always a dhcp exchange of some sort >> preceding the event. >> > So, I'm not sure there was "3) Normal DHCP traffic." if the switch > could drop DHCP packets in some buggy conditions. Anyway, let's try > the new one with really "3) Normal DHCP traffic.", I hope. > > Jarek P. > When the packets were dropped, there was a different sequence in the log - DISCOVER/OFFER repeated. The "normal" is that the sequence appeared correct and complete - DISCOVER/OFFER/REQUEST/ACK - or INFORM/ACK (vs. INFORM repeatedly sans ACK) as the case may be. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/