From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Breuer Subject: Re: [PATCH] af_packet: Don't use skb after dev_queue_xmit() Date: Thu, 07 Jan 2010 14:55:22 -0500 Message-ID: <4B463C2A.2090209@majjas.com> References: <4B457711.1040008@majjas.com> <4B458B36.6050509@majjas.com> <20100107074756.GB6258@ff.dom.local> <4B459368.2000503@majjas.com> <4B45F841.8030407@majjas.com> <20100107180114.GB3088@del.dom.local> <4B4625BD.3070202@majjas.com> <20100107183545.GA3208@del.dom.local> <4B462B3C.90506@majjas.com> <20100107185040.GB3208@del.dom.local> <20100107193607.GC3208@del.dom.local> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7BIT Cc: Stephen Hemminger , David Miller , akpm@linux-foundation.org, flyboy@gmail.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org To: Jarek Poplawski Return-path: In-reply-to: <20100107193607.GC3208@del.dom.local> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On 1/7/2010 2:36 PM, Jarek Poplawski wrote: > On Thu, Jan 07, 2010 at 07:50:40PM +0100, Jarek Poplawski wrote: > >>> Going to rerun with these patches and with and without MMAP. Will >>> also retry both with jumbo frames if possible. >>> >> If MMAP then some "alternative" too. But first no MMAP. >> > Another things IMHO worth to try: a sky2 module parameter > "disable_msi=1", and CONFIG_DMAR off. > > Jarek P. > Ok - that'd be with or without MMAP enabled? (note that so-far, without MMAP I'm not seeing any errors - throughput is running about half what I was seeing with MMAP enabled (before crashing that is). CPU is also way busier (also to be expected). One other observation - I had been seeing lots of DNS errors - IPV6 related format errors I really didn't think much of it as they were mostly .ru and seemed spam-related, but now I don't see any. Haven't updated bind; doubt the world has changed - so perhaps this is related to the network issue.