Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751931Ab0AXBxn (ORCPT ); Sat, 23 Jan 2010 20:53:43 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751417Ab0AXBxl (ORCPT ); Sat, 23 Jan 2010 20:53:41 -0500 Received: from mta1.srv.hcvlny.cv.net ([167.206.4.196]:44116 "EHLO mta1.srv.hcvlny.cv.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751335Ab0AXBxk (ORCPT ); Sat, 23 Jan 2010 20:53:40 -0500 Date: Sat, 23 Jan 2010 20:53:31 -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: <20100123232133.GA3487@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: <4B5BA81B.30908@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> <4B5A39BD.8020305@majjas.com> <20100123232133.GA3487@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: 1085 Lines: 25 On 1/23/2010 6:21 PM, Jarek Poplawski wrote: > On Fri, Jan 22, 2010 at 06:50:21PM -0500, Michael Breuer wrote: > >> 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. >> > Anyway, I'd be intersted if the switch matters here. > > Plus one more test: could you try to load sky2 with the parameter: > "copybreak=1" (the rest as in any recent test, which gave you dmar > errors; any switch). > > Thanks, > Jarek P. > Ok - will try with and without the copybreak=1 after I'm done bisecting 2.6.33 rc5 for something unrelated (it'll take a couple of days for each unless a crash occurs in less that 48 hours). -- 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/