From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark McLoughlin Subject: Re: skb_segment() questions Date: Mon, 20 Apr 2009 12:12:10 +0100 Message-ID: <1240225930.23407.49.camel@blaa> References: <20090329020701.GA9983@gondor.apana.org.au> <20090328.233929.160905643.davem@davemloft.net> <1238403045.854.39.camel@blaa> <20090330.135748.264670066.davem@davemloft.net> Reply-To: Mark McLoughlin Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: herbert@gondor.apana.org.au, jamesclhuang@gmail.com, netdev@vger.kernel.org To: David Miller Return-path: Received: from mx2.redhat.com ([66.187.237.31]:60107 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751690AbZDTLMX (ORCPT ); Mon, 20 Apr 2009 07:12:23 -0400 In-Reply-To: <20090330.135748.264670066.davem@davemloft.net> Sender: netdev-owner@vger.kernel.org List-ID: On Mon, 2009-03-30 at 13:57 -0700, David Miller wrote: > From: Mark McLoughlin > Date: Mon, 30 Mar 2009 09:50:45 +0100 > > > On Sat, 2009-03-28 at 23:39 -0700, David Miller wrote: > > > From: Herbert Xu > > > Date: Sun, 29 Mar 2009 10:07:01 +0800 > > > > > > > gso: Fix support for linear packets > > > > > > > > When GRO/frag_list support was added to GSO, I made an error > > > > which broke the support for segmenting linear GSO packets (GSO > > > > packets are normally non-linear in the payload). > > > > > > > > These days most of these packets are constructed by the tun > > > > driver, which prefers to allocate linear memory if possible. > > > > This is fixed in the latest kernel, but for 2.6.29 and earlier > > > > it is still the norm. > > > > > > > > Therefore this bug causes failures with GSO when used with tun > > > > in 2.6.29. > > > > > > > > Reported-by: James Huang > > > > Signed-off-by: Herbert Xu > > > > > > Applied, thanks. > > > > This is needed in -stable too, fwiw. Fixes e.g. virtio guest->remote > > with 2.6.29 host: > > > > https://bugzilla.redhat.com/490266 > > I know, I'll queue it up. This hasn't made it yet? Just had another report on kvm list about it. (Can't seem to find anywhere to check whether it's queued) Cheers, Mark.