From owner-freebsd-fs@FreeBSD.ORG Wed Mar 6 18:59:11 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 DD3A84D5 for ; Wed, 6 Mar 2013 18:59:11 +0000 (UTC) (envelope-from ler@lerctr.org) Received: from thebighonker.lerctr.org (lrosenman-1-pt.tunnel.tserv8.dal1.ipv6.he.net [IPv6:2001:470:1f0e:3ad::2]) by mx1.freebsd.org (Postfix) with ESMTP id 829D1F16 for ; Wed, 6 Mar 2013 18:59:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lerctr.org; s=lerami; h=Message-ID:References:In-Reply-To:Subject:Cc:To:From:Date:Content-Transfer-Encoding:Content-Type:MIME-Version; bh=4LV5yZA6+67yrWEu01+3xy7aR22xgJoMZiz7ZWC6ffM=; b=fzHxLTmbojhTISdwhtb4+j01qNeFhpmouj4H+s48vknC5Da2GNdosbywKFrDu34o3/Qo+y3HGi1X/v2hwRgfJlQ+fZ1bK254FK44QiuhJK+MS2N2thuWMvdIbBjkpVpdbpBl/NUbxwZnJXmOh81mifpuq9K5eTL2h5oANxo168E=; Received: from localhost.lerctr.org ([127.0.0.1]:45090 helo=webmail.lerctr.org) by thebighonker.lerctr.org with esmtpa (Exim 4.80.1 (FreeBSD)) (envelope-from ) id 1UDJYN-000Lr7-Im; Wed, 06 Mar 2013 12:59:08 -0600 Received: from [32.97.110.59] by webmail.lerctr.org with HTTP (HTTP/1.1 POST); Wed, 06 Mar 2013 12:59:02 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Date: Wed, 06 Mar 2013 12:59:02 -0600 From: Larry Rosenman To: Martin Simmons Subject: Re: zfs send/recv invalid data In-Reply-To: <201303061857.r26IvLnc024186@higson.cam.lispworks.com> 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> Message-ID: X-Sender: ler@lerctr.org User-Agent: Roundcube Webmail/0.8.5 X-Spam-Score: -3.5 (---) X-LERCTR-Spam-Score: -3.5 (---) X-Spam-Report: SpamScore (-3.5/5.0) ALL_TRUSTED=-1, BAYES_00=-1.9, RP_MATCHES_RCVD=-0.628 X-LERCTR-Spam-Report: SpamScore (-3.5/5.0) ALL_TRUSTED=-1, BAYES_00=-1.9, RP_MATCHES_RCVD=-0.628 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 18:59:11 -0000 On 2013-03-06 12:57, Martin Simmons wrote: >>>>>> On Wed, 06 Mar 2013 05:07:28 -0600, Larry Rosenman said: >> >> On 2013-03-06 04:56, Larry Rosenman wrote: >>> On 2013-03-06 04:51, Tom Evans wrote: >>>> On Wed, Mar 6, 2013 at 10:46 AM, Larry Rosenman >>>> wrote: >>>>> So, you are correct that something(tm) is unclean about the ssh >>>>> path. >>>>> >>>> And what is it that is added? Surely that is trivial to determine? >>>> echo hello > foo >>>> cat foo | ssh host cat >>>> Cheers >>>> Tom >>> it seems to be bytestream dependent, as this simple case works, and >>> the vast majority of the sends work, but the particular >>> case in the thread does NOT. >>> >>> # echo hello >foo >>> # cat foo | ssh home cat >>> hello >>> # >> stranger: >> $ cd /tmp >> $ cat send.stream | ssh home openssl md5 >> (stdin)= 9cd1d73ea8411f1c222bc90e7bea3d33 >> $ openssl md5 send.stream >> MD5(send.stream)= 9cd1d73ea8411f1c222bc90e7bea3d33 >> $ >> >> so I'm not sure what is tripping it in the stream to a pipe case. > > Is that running under the same uid? The script you posted earlier > runs the > pipe under ssh root@tbh.lerctr.org. > > __Martin Ooo, good point. Would csh vs. sh make a difference? -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 (c) E-Mail: ler@lerctr.org US Mail: 430 Valona Loop, Round Rock, TX 78681-3893