From owner-freebsd-fs@FreeBSD.ORG Wed Oct 31 12:52:54 2007 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DC5EF16A418; Wed, 31 Oct 2007 12:52:54 +0000 (UTC) (envelope-from henrik@brixandersen.dk) Received: from solow.pil.dk (relay.pil.dk [195.41.47.164]) by mx1.freebsd.org (Postfix) with ESMTP id 9750813C48E; Wed, 31 Oct 2007 12:52:54 +0000 (UTC) (envelope-from henrik@brixandersen.dk) Received: from tirith.brixandersen.dk (osgiliath.brixandersen.dk [87.53.223.189]) by solow.pil.dk (Postfix) with ESMTP id 92D9B1CC0B8; Wed, 31 Oct 2007 13:15:49 +0100 (CET) Received: by tirith.brixandersen.dk (Postfix, from userid 1001) id C283F1141D; Wed, 31 Oct 2007 13:15:48 +0100 (CET) Date: Wed, 31 Oct 2007 13:15:48 +0100 From: Henrik Brix Andersen To: Pawel Jakub Dawidek Message-ID: <20071031121548.GD988@tirith.brixandersen.dk> Mail-Followup-To: Pawel Jakub Dawidek , Claus Guttesen , freebsd-fs@freebsd.org, freebsd-current@freebsd.org References: <20071005000046.GC92272@garage.freebsd.pl> <20071008121523.GM2327@garage.freebsd.pl> <20071015082629.GB1290@tirith.brixandersen.dk> <20071015094716.GG10170@garage.freebsd.pl> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="Izn7cH1Com+I3R9J" Content-Disposition: inline In-Reply-To: <20071015094716.GG10170@garage.freebsd.pl> X-PGP-Key: http://www.brixandersen.dk/files/HenrikBrixAndersen.asc User-Agent: Mutt/1.5.16 (2007-06-09) Cc: freebsd-fs@freebsd.org, freebsd-current@freebsd.org, Claus Guttesen Subject: Re: ZFS kmem_map too small. X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 31 Oct 2007 12:52:55 -0000 --Izn7cH1Com+I3R9J Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi Pawel, On Mon, Oct 15, 2007 at 11:47:16AM +0200, Pawel Jakub Dawidek wrote: > This looks like VFS deadlock between process 42575 and 42585. You > debugging is really nice, but unfortunately there is no backtrace of > process 42575, so we don't know where and why it's stuck... >=20 > Can you next time take 'show lockedvnods', 'show alllocks' (as you did > this time), but also 'alltrace'? Here's a new debug session with the above requested information: http://www.brixandersen.dk/tmp/zfs-rsync-debug.2.txt As you can see, there were a couple of LORs before I entered the debugger. At least one of these (the last one) appeared when trying to list the files in one of the zfs filesystems, where rsync was hanging. This is with RELENG_7 from Thu Oct 25 14:30:37 CEST 2007. Regards, Brix --=20 Henrik Brix Andersen --Izn7cH1Com+I3R9J Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) Comment: GnuPG signed iD8DBQFHKHHzv+Q4flTiePgRApHAAKCyyZIAFik2FZckqseows4I+3gszgCeNsaS i9pP1XQkONml0Ts3/3EYJ4s= =53rb -----END PGP SIGNATURE----- --Izn7cH1Com+I3R9J--