From mboxrd@z Thu Jan 1 00:00:00 1970 From: "J. Bruce Fields" Subject: Re: NFS/credentials leak in 2.6.29-rc1 Date: Wed, 21 Jan 2009 18:18:11 -0500 Message-ID: <20090121231811.GK4295@fieldses.org> References: <20090120235341.GA29017@fieldses.org> <20090120114649.GA15832@ioremap.net> <20090120151125.GB24266@fieldses.org> <20090120152304.GA28592@ioremap.net> <21428.1232540589@redhat.com> <20090121123728.GA1739@ioremap.net> <20090121223919.GG4295@fieldses.org> <20090121224659.GA19015@ioremap.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: David Howells , Trond Myklebust , linux-fsdevel@vger.kernel.org To: Evgeniy Polyakov Return-path: Received: from mail.fieldses.org ([141.211.133.115]:34118 "EHLO pickle.fieldses.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752628AbZAUXSP (ORCPT ); Wed, 21 Jan 2009 18:18:15 -0500 Content-Disposition: inline In-Reply-To: <20090121224659.GA19015@ioremap.net> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Thu, Jan 22, 2009 at 01:46:59AM +0300, Evgeniy Polyakov wrote: > On Wed, Jan 21, 2009 at 05:39:19PM -0500, J. Bruce Fields (bfields@fieldses.org) wrote: > > > I got following fun tcpdump and failed mount (it stuck, but can be interrupted): > > > > I'm really bad at reading tcpdump. Where's the problem here? It looks > > like every call gets a reply. > > Port fields are fun > > > > 15:34:41.253911 IP addr1.1835336279 > addr2.2049: 44 null > ^^^^^^^^^^ vs ^^^^ > > It is likely copied skb corruption, ports change, but acks correspond > sometimes. Obviously it's normal that the client- and server- side ports would differ, so I assume you meant to point out the variation in the client port number? (1835336279, 728, 1852113495, 1868890711, 1885667927). --b. > > > > 15:34:41.253916 IP addr2.2049 > addr1.728: . ack 44 win 88 > > > 15:34:41.254103 IP addr2.2049 > addr1.1835336279: reply ok 28 null > > > 15:34:41.254229 IP addr1.728 > addr2.2049: . ack 29 win 89 > > > 15:34:41.254238 IP addr1.1852113495 > addr2.2049: 44 null > > > 15:34:41.254271 IP addr2.2049 > addr1.1852113495: reply ok 28 null > > > 15:34:41.254378 IP addr1.1868890711 > addr2.2049: 100 fsinfo [|nfs] > > > 15:34:41.254411 IP addr2.2049 > addr1.1868890711: reply ok 36 fsinfo [|nfs] > > > 15:34:41.254528 IP addr1.1885667927 > addr2.2049: 100 fsinfo [|nfs] > > > 15:34:41.254555 IP addr2.2049 > addr1.1885667927: reply ok 36 fsinfo [|nfs] > > -- > Evgeniy Polyakov