From owner-freebsd-stable@freebsd.org Tue Aug 23 12:28:41 2016 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 8A687BC32AA for ; Tue, 23 Aug 2016 12:28:41 +0000 (UTC) (envelope-from estartu@ze.tum.de) Received: from mail.ze.tum.de (mail.ze.tum.de [IPv6:2001:4ca0:2e03::1:2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mail.ze.tum.de", Issuer "Zertifizierungsstelle der TUM" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 2CAFB1D0B; Tue, 23 Aug 2016 12:28:40 +0000 (UTC) (envelope-from estartu@ze.tum.de) Received: from etustar.ze.tum.de ([IPv6:2001:4ca0:2e03:0:0:0:1:180]) by mail.ze.tum.de (8.15.2/8.15.2) with ESMTPS id u7NCRkbR096480 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 23 Aug 2016 14:27:47 +0200 (CEST) (envelope-from estartu@ze.tum.de) X-Authentication-Warning: hades.ze.tum.de: Host [IPv6:2001:4ca0:2e03:0:0:0:1:180] claimed to be etustar.ze.tum.de Reply-To: schmidt@ze.tum.de Subject: Re: Problems with piped tar References: <96b7f57f-74ac-9445-1d04-61327ab111dc@ze.tum.de> <6a841a00-6765-f1a2-02c3-9ce87ec595e8@ze.tum.de> <20160823113155.GB56297@in-addr.com> To: Gary Palmer Cc: Daniel Braniss , freebsd-stable From: Gerhard Schmidt Organization: =?UTF-8?Q?Technische_Universit=c3=a4t_M=c3=bcnchen_-_WWW_und_O?= =?UTF-8?Q?nline_Services?= Message-ID: Date: Tue, 23 Aug 2016 14:27:46 +0200 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: <20160823113155.GB56297@in-addr.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Aug 2016 12:28:41 -0000 Am 23.08.2016 um 13:31 schrieb Gary Palmer: > On Tue, Aug 23, 2016 at 09:35:12AM +0200, Gerhard Schmidt wrote: >> Am 23.08.2016 um 09:18 schrieb Daniel Braniss: >>> >>>> On 23 Aug 2016, at 10:06, Gerhard Schmidt wrote: >>>> >>>> Hi, >>>> >>>> i'm quite often use tar to copy files using >>>> >>>> tar cf - /some/dir | (cd /dest/dir; tar xvvf - ) >>> the ???new??? way: >>> tar cf - /some/dir | tar xvvd - -C /dest/dir >>> which of course does not explain way your version hangs, but this one is cleaner, and btw, don???t >>> include /. >> >> that's very strange. It's working, but doesn't solve another related >> problem. When i pipe the tar thru nc a have the same problem as my >> version. And it's no difference if there is a tar c an the receiving end >> of nc or just a '> file.tar' > > Is the sending side using nc -N ? If not, the sending socket is not being > shut down. Is that something new? Because it worked on freebsd9 without the -N option. The problem seams to be that tar c doesn't terminate after the last File is send. I think it send the EOF (because nc -N terminates and therefor terminates the pipe) but the tar process doesn't terminate. Estartu -- ------------------------------------------------- Gerhard Schmidt | E-Mail: schmidt@ze.tum.de TU-München | Jabber: estartu@ze.tum.de WWW & Online Services | Tel: 089/289-25270 | Fax: 089/289-25257 | PGP-Publickey auf Anfrage