From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: linux-nfs-owner@vger.kernel.org Received: from fieldses.org ([174.143.236.118]:56951 "EHLO fieldses.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752598Ab2J1QP7 (ORCPT ); Sun, 28 Oct 2012 12:15:59 -0400 Date: Sun, 28 Oct 2012 12:15:56 -0400 From: "J. Bruce Fields" To: "Myklebust, Trond" Cc: "linux-nfs@vger.kernel.org" , "Schumaker, Bryan" Subject: Re: 3.7-rc1 NFSv3/sec=krb5 mkdir failure Message-ID: <20121028161556.GC20520@fieldses.org> References: <20121016125832.GC30649@fieldses.org> <20121024200249.GC6697@fieldses.org> <4FA345DA4F4AE44899BD2B03EEEC2FA9092906F7@SACEXCMBX04-PRD.hq.netapp.com> <20121024201517.GD6697@fieldses.org> <4FA345DA4F4AE44899BD2B03EEEC2FA90929086C@SACEXCMBX04-PRD.hq.netapp.com> <20121024204059.GF6697@fieldses.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20121024204059.GF6697@fieldses.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: On Wed, Oct 24, 2012 at 04:40:59PM -0400, J. Bruce Fields wrote: > On Wed, Oct 24, 2012 at 08:34:37PM +0000, Myklebust, Trond wrote: > > > -----Original Message----- > > > From: Myklebust, Trond > > > Sent: Wednesday, October 24, 2012 4:31 PM > > > To: 'J. Bruce Fields' > > > Cc: linux-nfs@vger.kernel.org; Schumaker, Bryan > > > Subject: RE: 3.7-rc1 NFSv3/sec=krb5 mkdir failure > > > > > > > -----Original Message----- > > > > From: J. Bruce Fields [mailto:bfields@fieldses.org] > > > > Sent: Wednesday, October 24, 2012 4:15 PM > > > > To: Myklebust, Trond > > > > Cc: linux-nfs@vger.kernel.org; Schumaker, Bryan > > > > Subject: Re: 3.7-rc1 NFSv3/sec=krb5 mkdir failure > > > > > > > > On Wed, Oct 24, 2012 at 08:07:55PM +0000, Myklebust, Trond wrote: > > > > > > -----Original Message----- > > > > > > From: linux-nfs-owner@vger.kernel.org [mailto:linux-nfs- > > > > > > owner@vger.kernel.org] On Behalf Of J. Bruce Fields > > > > > > Sent: Wednesday, October 24, 2012 4:03 PM > > > > > > To: linux-nfs@vger.kernel.org; Myklebust, Trond; Schumaker, Bryan > > > > > > Subject: Re: 3.7-rc1 NFSv3/sec=krb5 mkdir failure > > > > > > > > > > > > Anyone get a chance to look at this? It seems very reproduceable. > > > > > > > > > > > > --b. > > > > > > > > > > > > On Tue, Oct 16, 2012 at 08:58:32AM -0400, bfields wrote: > > > > > > > On 3.7-rc1: > > > > > > > > > > > > > > client# mount -tnfs -osec=krb5,vers=3 server:/exports/ext4 > > > > > > > /mnt/ > > > > > > > > > > > > > > server# ls -l /exports/ext4|grep TMP > > > > > > > server# > > > > > > > > > > > > > > # mkdir /mnt/TMP > > > > > > > mkdir: cannot create directory `/mnt/TMP': Permission denied > > > > > > > > > > > > > > server# ls -l /exports/ext4|grep TMP > > > > > > > drwxr-xr-x 2 nfsnobody nfsnobody 4096 Oct 16 08:56 TMP > > > > > > > server# > > > > > > > > > > > > > > Wireshark also shows that the create succeeds. > > > > > > > > > > Can you share the wireshark trace? > > > > > > > > Sure. This covers the mount and mkdir. The mkdir call and reply are > > > > in frames 77 and 78. > > > > > > Hmm.... Can you please check if the ACL is being set correctly on the server? I > > > suspect that might be the source of the error. > > > > > > > In fact, can you see if mounting with '-onoacl' causes the whole thing to succeed? > > That's on the client mount command? No difference. By the way, I managed to do a little bisecting while working on something else today, and blame landed on Chuck's ba9b584c1dc37851d9c6ca6d0d2ccba55d9aad04 "SUNRPC: Introduce rpc_clone_client_set_auth()". Which makes some sense if it's an ACL problem, and indeed testing on that commit finds success with -noacl, failure without. I'm not sure if that explains the failure I was seeing on 3.7-rc1, since there I didn't see any ACL traffic, and still got a failure. (And -noacl didn't help.) --b.