From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752851AbXDRNm1 (ORCPT ); Wed, 18 Apr 2007 09:42:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752984AbXDRNm1 (ORCPT ); Wed, 18 Apr 2007 09:42:27 -0400 Received: from iucha.net ([209.98.146.184]:54217 "EHLO mail.iucha.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752851AbXDRNm1 (ORCPT ); Wed, 18 Apr 2007 09:42:27 -0400 Date: Wed, 18 Apr 2007 08:42:26 -0500 To: Trond Myklebust Cc: Andrew Morton , Linus Torvalds , Peter Zijlstra , Adrian Bunk , OGAWA Hirofumi , linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/4] 2.6.21-rc7 NFS writes: fix a series of issues Message-ID: <20070418134225.GG24044@iucha.net> References: <1176865565.6796.16.camel@heimdal.trondhjem.org> <20070418033055.GA24044@iucha.net> <1176868485.6796.42.camel@heimdal.trondhjem.org> <20070418040730.GC24044@iucha.net> <20070417211350.ebba1493.akpm@linux-foundation.org> <20070418043040.GD24044@iucha.net> <20070417223738.8f49a39f.akpm@linux-foundation.org> <20070418123842.GF24044@iucha.net> <1176902131.6796.62.camel@heimdal.trondhjem.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="+sHJum3is6Tsg7/J" Content-Disposition: inline In-Reply-To: <1176902131.6796.62.camel@heimdal.trondhjem.org> X-GPG-Key: http://iucha.net/florin_iucha.gpg X-GPG-Fingerprint: 5E59 C2E7 941E B592 3BA4 7DCF 343D 2B14 2376 6F5B User-Agent: Mutt/1.5.13 (2006-08-11) From: florin@iucha.net (Florin Iucha) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --+sHJum3is6Tsg7/J Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Apr 18, 2007 at 09:15:31AM -0400, Trond Myklebust wrote: > There is only one request on the 'pending' queue. That would usually > indicate that the connection to the server is down. Can you check using > "netstat -t" whether or not there is a connection in the 'ESTABLISHED' > state to the server? Please also repeat the command a couple of times in > order to see if the socket/port number on the connection changes. This is with your fifth patch on top of the previous four patches: http://iucha.net/nfs/21-rc7-nfs3/big-copy Again, it has memory, stack traces and rpc_debug. The iostat 5 output: http://iucha.net/nfs/21-rc7-nfs3/iostat The netstat outputs are stable (not changed in 5 minutes): http://iucha.net/nfs/21-rc7-nfs3/netstat-server : tcp 1 0 hermes.iucha.org:nfs zeus.iucha.org:799 CLOSE_W= AIT=20 tcp 0 0 hermes.iucha.org:nfs zeus.iucha.org:976 ESTABLI= SHED http://iucha.net/nfs/21-rc7-nfs3/netstat-client Active Internet connections (w/o servers) Proto Recv-Q Send-Q Local Address Foreign Address State = =20 tcp 0 0 zeus.iucha.org:976 hermes.iucha.org:nfs ESTABLI= SHED tcp 0 0 zeus.iucha.org:ssh hermes.iucha.org:56880 ESTABLI= SHED tcp 0 0 zeus.iucha.org:ssh hermes.iucha.org:45176 ESTABLI= SHED Could the port in CLOSE_WAIT state be the culprit? (FWIW the server has been up for 38 days and subjected to this nfs test quite a bit without showing any stress). Regards, florin --=20 Bruce Schneier expects the Spanish Inquisition. http://geekz.co.uk/schneierfacts/fact/163 --+sHJum3is6Tsg7/J Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFGJiBBND0rFCN2b1sRAoMvAJ4oU3Rbo/fObJ8JpeQ2/AwR7ds+DACfXMP4 ZIug9qXOc4deOyM9muwJD6U= =jcin -----END PGP SIGNATURE----- --+sHJum3is6Tsg7/J--