From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PANIC] lro + iscsi or lro + skb text search causes panic Date: Thu, 29 Jan 2009 16:13:13 -0800 (PST) Message-ID: <20090129.161313.249939766.davem@davemloft.net> References: <497EA5B5.5090806@cs.wisc.edu> <46A00B48CC54E4468EF6911F877AC4CA01EF2BC9@blrx3m10.blr.amer.dell.com> <20090128212526.GA22141@gondor.apana.org.au> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: Shyam_Iyer@Dell.com, michaelc@cs.wisc.edu, jesse.brandeburg@intel.com, netdev@vger.kernel.org, olaf.kirch@oracle.com, tgraf@suug.ch, kkeil@suse.de To: herbert@gondor.apana.org.au Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:60669 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1753310AbZA3ANQ (ORCPT ); Thu, 29 Jan 2009 19:13:16 -0500 In-Reply-To: <20090128212526.GA22141@gondor.apana.org.au> Sender: netdev-owner@vger.kernel.org List-ID: From: Herbert Xu Date: Thu, 29 Jan 2009 08:25:26 +1100 > On Wed, Jan 28, 2009 at 05:47:57PM +0530, Shyam_Iyer@Dell.com wrote: > > > > --- skbuff.c.orig 2009-01-29 01:12:03.000000000 +0530 > > +++ skbuff.c 2009-01-29 01:34:57.000000000 +0530 > > @@ -2039,15 +2039,15 @@ > > st->frag_data = NULL; > > } > > > > - if (st->cur_skb->next) { > > - st->cur_skb = st->cur_skb->next; > > - st->frag_idx = 0; > > - goto next_skb; > > - } else if (st->root_skb == st->cur_skb && > > + if (st->root_skb == st->cur_skb && > > skb_shinfo(st->root_skb)->frag_list) { > > st->cur_skb = skb_shinfo(st->root_skb)->frag_list; > > st->frag_idx=0; > > goto next_skb; > > + } else if (st->cur_skb->next) { > > + st->cur_skb = st->cur_skb->next; > > + st->frag_idx = 0; > > + goto next_skb; > > } > > > > return 0; > > Good catch! > > Signed-off-by: Herbert Xu Excellent work everyone. I applied both Herbert's and Shyam's patches, and will queue them up for -stable as well. Thanks again.