From owner-freebsd-stable@FreeBSD.ORG Tue Dec 30 11:12:44 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4A04B10656F0 for ; Tue, 30 Dec 2008 11:12:44 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from mail13.syd.optusnet.com.au (mail13.syd.optusnet.com.au [211.29.132.194]) by mx1.freebsd.org (Postfix) with ESMTP id D3E6D8FC12 for ; Tue, 30 Dec 2008 11:12:43 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from server.vk2pj.dyndns.org (c122-106-215-175.belrs3.nsw.optusnet.com.au [122.106.215.175]) by mail13.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id mBUBCe4R011932 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 30 Dec 2008 22:12:41 +1100 X-Bogosity: Ham, spamicity=0.000000 Received: from server.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by server.vk2pj.dyndns.org (8.14.3/8.14.3) with ESMTP id mBUBCekY089956; Tue, 30 Dec 2008 22:12:40 +1100 (EST) (envelope-from peter@server.vk2pj.dyndns.org) Received: (from peter@localhost) by server.vk2pj.dyndns.org (8.14.3/8.14.3/Submit) id mBUBCejE089955; Tue, 30 Dec 2008 22:12:40 +1100 (EST) (envelope-from peter) Date: Tue, 30 Dec 2008 22:12:40 +1100 From: Peter Jeremy To: Terry Kennedy Message-ID: <20081230111240.GC87057@server.vk2pj.dyndns.org> References: <01N3OFGBCXMS000125@tmk.com> <01N3OYSUCHAE000125@tmk.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ftEhullJWpWg/VHq" Content-Disposition: inline In-Reply-To: <01N3OYSUCHAE000125@tmk.com> X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.18 (2008-05-17) Cc: freebsd-stable@freebsd.org Subject: Re: rdump stuck in sbwait state (RELENG_7) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 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, 30 Dec 2008 11:12:44 -0000 --ftEhullJWpWg/VHq Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2008-Dec-30 05:48:26 -0500, Terry Kennedy wrote: >> Unfortunately, you need the last packets that were exchanged in order >> to identify which end has the problem (and hopefully provide some >> pointers as to why). If possible, can you repeat the dump whilst you >> run a tcpdump on the rdump flow and then post the last dozen or so >> packets in each direction. > > That could be pretty unpleasant - this happens at a random point while >dumping 4GB or so. If I have to, I'll do it but I was hoping there was >a better way. Sorry, I can't think of any - by the time you see it hung, whatever went wrong has already happened. You might glean some insight from the TCP socket state (on the FreeBSD side, use 'netstat -A' to print the PCB address and gdb to dump the contents but I'm not sure how to get this data out of OpenVMS). The '-C' and '-W' options to tcpdump will help. > Shouldn't this get torn down by a keepalive at some point? It has been >sitting for 9 hours or so at this point... On FreeBSD, keepalives are off by default. You change change the default with sysctl net.inet.tcp.always_keepalive but I think that only affects new connections. --=20 Peter Jeremy Please excuse any delays as the result of my ISP's inability to implement an MTA that is either RFC2821-compliant or matches their claimed behaviour. --ftEhullJWpWg/VHq Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAklaAigACgkQ/opHv/APuIdKeACfTKuubSMlE+9zf2KyW7iY4zSR +20An3ED9Dyo94ia2/SSVLLwdwB5QsEL =Euu8 -----END PGP SIGNATURE----- --ftEhullJWpWg/VHq--