From owner-freebsd-fs@FreeBSD.ORG Sun Nov 11 07:27:51 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 2D59D82E for ; Sun, 11 Nov 2012 07:27:51 +0000 (UTC) (envelope-from peter@rulingia.com) Received: from vps.rulingia.com (host-122-100-2-194.octopus.com.au [122.100.2.194]) by mx1.freebsd.org (Postfix) with ESMTP id AED438FC0A for ; Sun, 11 Nov 2012 07:27:49 +0000 (UTC) Received: from server.rulingia.com (c220-239-241-202.belrs5.nsw.optusnet.com.au [220.239.241.202]) by vps.rulingia.com (8.14.5/8.14.5) with ESMTP id qAB7RkcQ061181 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Sun, 11 Nov 2012 18:27:47 +1100 (EST) (envelope-from peter@rulingia.com) X-Bogosity: Ham, spamicity=0.000000 Received: from server.rulingia.com (localhost.rulingia.com [127.0.0.1]) by server.rulingia.com (8.14.5/8.14.5) with ESMTP id qAB7RdnL004846 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sun, 11 Nov 2012 18:27:40 +1100 (EST) (envelope-from peter@server.rulingia.com) Received: (from peter@localhost) by server.rulingia.com (8.14.5/8.14.5/Submit) id qAB7RdIV004845 for freebsd-fs@freebsd.org; Sun, 11 Nov 2012 18:27:39 +1100 (EST) (envelope-from peter) Date: Sun, 11 Nov 2012 18:27:39 +1100 From: Peter Jeremy To: freebsd-fs@freebsd.org Subject: Re: zfs diff deadlock Message-ID: <20121111072739.GA4814@server.rulingia.com> References: <20121110223249.GB506@server.rulingia.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="45Z9DzgjV8m4Oswq" Content-Disposition: inline In-Reply-To: <20121110223249.GB506@server.rulingia.com> X-PGP-Key: http://www.rulingia.com/keys/peter.pgp User-Agent: Mutt/1.5.21 (2010-09-15) 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: Sun, 11 Nov 2012 07:27:51 -0000 --45Z9DzgjV8m4Oswq Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2012-Nov-11 09:32:49 +1100, Peter Jeremy wro= te: >I recently decided to do a "zfs diff" between two snapshots to try >and identify why there was so much "USED" space in the snapshot. >The diff ran for a while (though with very little IO) but has now >wedged unkillably. There's nothing on the console or in any logs, >the pool reports no problems and there are no other visible FS >issues. Any ideas on tracking this down? =2E.. >The systems is running a 4-month old 8-stable (r237444) I've tried a second system running the same world with the same result, so this looks like a real bug in ZFS rather than a system glitch. --=20 Peter Jeremy --45Z9DzgjV8m4Oswq Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) iEYEARECAAYFAlCfU2sACgkQ/opHv/APuIcaYQCgxNY2HmA/FV3Dy8w7jVDJd8M9 NQgAoMTLMXNmEarP8NS6R4Rlj5nuug9n =w0TR -----END PGP SIGNATURE----- --45Z9DzgjV8m4Oswq--