Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754876AbaFYSxE (ORCPT ); Wed, 25 Jun 2014 14:53:04 -0400 Received: from shards.monkeyblade.net ([149.20.54.216]:37246 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752271AbaFYSxB (ORCPT ); Wed, 25 Jun 2014 14:53:01 -0400 Date: Wed, 25 Jun 2014 11:52:58 -0700 (PDT) Message-Id: <20140625.115258.1446490446271879078.davem@davemloft.net> To: davej@redhat.com Cc: torvalds@linux-foundation.org, therbert@google.com, akpm@linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] tcp: fix setting csum_start in tcp_gso_segment From: David Miller In-Reply-To: <20140625141052.GA1096@redhat.com> References: <20140625141052.GA1096@redhat.com> X-Mailer: Mew version 6.5 on Emacs 24.1 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.7 (shards.monkeyblade.net [149.20.54.216]); Wed, 25 Jun 2014 11:53:01 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Dave Jones Date: Wed, 25 Jun 2014 10:10:52 -0400 > On Tue, Jun 24, 2014 at 09:17:25PM -0700, Linus Torvalds wrote: > > On Tue, Jun 24, 2014 at 9:03 PM, Tom Herbert wrote: > > > > > > It looks like a likely culprit is that SKB_GSO_CB()->csum_start is > > > not set correctly when doing non-scatter gather. We are using > > > offset as opposed to doffset. > > > > > > Reported-by: Dave Jones > > > > DaveJ, I think you triggered this in five minutes on your box, and I > > don't recall seeing anybody else reporting the oops (and google > > doesn't find anything in the last month). So it's presumably somewhat > > hw-specific. Does this fix the problem? > > It's survived routing ~1GB of packets overnight, so I'd call this good. Tom, please adjust the Subject line as suggested by Eric Dumazet and add a Tested-by: for Dave. Thanks! -- 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/