From owner-freebsd-fs@FreeBSD.ORG Wed Mar 6 23:48:38 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 04EBA6FA for ; Wed, 6 Mar 2013 23:48:38 +0000 (UTC) (envelope-from prvs=1777d4b2b8=killing@multiplay.co.uk) Received: from mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) by mx1.freebsd.org (Postfix) with ESMTP id 89BF0234 for ; Wed, 6 Mar 2013 23:48:36 +0000 (UTC) Received: from r2d2 ([46.65.172.4]) by mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) (MDaemon PRO v10.0.4) with ESMTP id md50002588037.msg for ; Wed, 06 Mar 2013 23:48:36 +0000 X-Spam-Processed: mail1.multiplay.co.uk, Wed, 06 Mar 2013 23:48:36 +0000 (not processed: message from valid local sender) X-MDDKIM-Result: neutral (mail1.multiplay.co.uk) X-MDRemoteIP: 46.65.172.4 X-Return-Path: prvs=1777d4b2b8=killing@multiplay.co.uk X-Envelope-From: killing@multiplay.co.uk X-MDaemon-Deliver-To: freebsd-fs@freebsd.org Message-ID: <5378B8D5A65A4F19BE1CF6C25A9CFE22@multiplay.co.uk> From: "Steven Hartland" To: "Larry Rosenman" References: <7c93aef20a88cdbcca85739e67470dce@webmail.lerctr.org> <25894116c93a59dab1fd976b425c36d1@webmail.lerctr.org> <07b59d5d4b2a3dab1385b054eea4f2da@webmail.lerctr.org> <7619c6383449c7a316edb1cdffc98c54@webmail.lerctr.org> <473BCD0A4A7A4E6AB08409A9B0C82363@multiplay.co.uk> <6dcfb2284551025af3cf58703a2b5cdc@webmail.lerctr.org> <920990505611cd96a075c80d06691bb0@webmail.lerctr.org> <201303061857.r26IvLnc024186@higson.cam.lispworks.com> <9e133e088f6c3c3dafdc0a99eb7c48c1@webmail.lerctr.org> <218B0537E987442EAB8027EA478F8BE9@multiplay.co.uk> Subject: Re: zfs send/recv invalid data Date: Wed, 6 Mar 2013 23:48:38 -0000 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="UTF-8"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 Cc: tevans.uk@googlemail.com, freebsd-fs@freebsd.org, ronald-freebsd8@klop.yi.org X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Mar 2013 23:48:38 -0000 ----- Original Message ----- From: "Larry Rosenman" To: "Steven Hartland" Cc: "Martin Simmons" ; ; ; Sent: Wednesday, March 06, 2013 11:16 PM Subject: Re: zfs send/recv invalid data > On 2013-03-06 17:00, Steven Hartland wrote: >> ----- Original Message ----- From: "Larry Rosenman" >>> # cat send.stream | ssh root@home openssl md5 >>> (stdin)= 9cd1d73ea8411f1c222bc90e7bea3d33 >>> # uname -a >>> FreeBSD thebighonker.lerctr.org 8.3-STABLE FreeBSD 8.3-STABLE #54 >>> r247820: Mon Mar 4 18:08:11 CST 2013 >>> root@thebighonker.lerctr.org:/usr/obj/usr/src/sys/THEBIGHONKER amd64 >>> # >>> # exec csh >>> root@borg:/home/ler # pwd >>> /home/ler >>> root@borg:/home/ler # ssh tbh "cat >>> /home/ler/public_html/ZFS_RECV/send.stream | ssh root@home.lerctr.org >>> openssl md5" >>> (stdin)= 9cd1d73ea8411f1c222bc90e7bea3d33 >>> root@borg:/home/ler # uname -a >>> FreeBSD borg.lerctr.org 10.0-CURRENT FreeBSD 10.0-CURRENT #124 >>> r247826: Mon Mar 4 19:59:08 CST 2013 >>> root@borg.lerctr.org:/usr/obj/usr/src/sys/BORG-DTRACE amd64 >>> root@borg:/home/ler # >> >> When you run a command from ssh it will run as the target users shell >> so for csh if there is something bad in .cshrc or iirc .profile then >> you may get something output purely by logging in. >> >> So ensure you shell config's for the user on the target machine are >> clean. >> >> You can confirm this by comparing the output from the following >> two commands run from the sending machine:- >> md5 send.stream >> cat send.stream | ssh root@home.lerctr.org "cat" |md5 >> >> If these two commands produce different md5's then the login >> shell for root on home.lerctr.org is outputing something >> even when there is no terminal. >> >> You should be able to see what the shell is outputting using:- >> echo -n '' | ssh root@home.lerctr.org "cat" > 1.log >> >> After running this 1.log should be 0 bytes if its not your >> shell is definitely your problem and I'd start by looking >> at .cshrc and .profile for this user, or even the globals >> for these in /etc/ >> > I've done that, and get identical md5's..... > > I'm at a loss. I believe what you ran was similar but not identical, if you check the quoting subtly different. I'm not sure that will have any effect but both of the above are worth running just to confirm. Regards Steve ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone +44 845 868 1337 or return the E.mail to postmaster@multiplay.co.uk.