From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael Chan" Subject: Re: bnx2_poll panicking kernel Date: Thu, 26 Jun 2008 11:04:48 -0700 Message-ID: <4863DA40.9050508@broadcom.com> References: <20080621113406.5f89ae8d.billfink@mindspring.com> <20080623180439.GA18829@orion.carnet.hr> <20080623213657.GA26447@orion.carnet.hr> <48602847.1020203@broadcom.com> <48617C19.3010005@broadcom.com> <20080626110132.GA30648@orion.carnet.hr> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 7bit Cc: "'Bill Fink'" , "Ben Hutchings" , netdev , "mirrors@debian.org" To: "Josip Rodin" Return-path: Received: from mms3.broadcom.com ([216.31.210.19]:1251 "EHLO MMS3.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760078AbYFZSCn (ORCPT ); Thu, 26 Jun 2008 14:02:43 -0400 In-Reply-To: <20080626110132.GA30648@orion.carnet.hr> Sender: netdev-owner@vger.kernel.org List-ID: Josip Rodin wrote: > > Here we go, this is the first batch of debug output. I hope it helps. > Thanks for the data. I've looked at a few of these SKB dumps and they appear to be all modified in the same way: 1. SKB is unchanged and the clone bit is set. 2. skb_shared_info(SKB) has dataref 0x00010002 and these fields are changed: nr_frags changed from n to 1 gso_size changed from 0x5a8 to 0 gso_type changed from 1 (TCP_V4) to 0 gso_segs changed from m to 1 1 of the frags' length is modified to split the TSO packet into 1 segment I think this is consistent with what David said about tso_fragment() splitting the cloned TSO SKB into 2. Thanks.