From owner-freebsd-fs@FreeBSD.ORG Thu Oct 15 17:42:07 2009 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 8B421106566C for ; Thu, 15 Oct 2009 17:42:07 +0000 (UTC) (envelope-from pjd@garage.freebsd.pl) Received: from mail.garage.freebsd.pl (chello087206049004.chello.pl [87.206.49.4]) by mx1.freebsd.org (Postfix) with ESMTP id C60718FC39 for ; Thu, 15 Oct 2009 17:42:06 +0000 (UTC) Received: by mail.garage.freebsd.pl (Postfix, from userid 65534) id 4ECDF45F89; Thu, 15 Oct 2009 19:42:05 +0200 (CEST) Received: from localhost (chello087206049004.chello.pl [87.206.49.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.garage.freebsd.pl (Postfix) with ESMTP id EA7B445EE6; Thu, 15 Oct 2009 19:41:59 +0200 (CEST) Date: Thu, 15 Oct 2009 19:42:00 +0200 From: Pawel Jakub Dawidek To: Solon Lutz Message-ID: <20091015174200.GB1880@garage.freebsd.pl> References: <90685589.20091013092418@pyro.de> <20091013072712.GA1597@garage.freebsd.pl> <12910471099.20091013095322@pyro.de> <20091013075511.GC1597@garage.freebsd.pl> <1433853337.20091013100348@pyro.de> <20091013082116.GE1597@garage.freebsd.pl> <673550066.20091013133544@pyro.de> <473227349.20091014184731@pyro.de> <20091014210528.GC1727@garage.freebsd.pl> <572088116.20091015011137@pyro.de> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="mxv5cy4qt+RJ9ypb" Content-Disposition: inline In-Reply-To: <572088116.20091015011137@pyro.de> User-Agent: Mutt/1.4.2.3i X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 9.0-CURRENT i386 X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on mail.garage.freebsd.pl X-Spam-Level: X-Spam-Status: No, score=-0.2 required=4.5 tests=BAYES_00,PLING_QUERY, RCVD_IN_SORBS_DUL autolearn=no version=3.0.4 Cc: freebsd-fs@FreeBSD.ORG Subject: Re: Help needed! ZFS I/O error recovery? 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: Thu, 15 Oct 2009 17:42:07 -0000 --mxv5cy4qt+RJ9ypb Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Oct 15, 2009 at 01:11:37AM +0200, Solon Lutz wrote: > >> I just tried it with more TXGs, even with a jump of -300, but it alway= s gives > >> an "cannot iterate filesystems: I/O error" error if I try to import th= e pool. >=20 > >> Also because of mounting the pool, the TXg has gone up to 13445935 from > >> initially 13462284. >=20 > > We can try to turn off checksum verification entirely, but it will most > > likely just panic your system. >=20 > > If you want to do this, edit > > sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/spa.h file and change > > ZIO_CHECKSUM_EQUAL() macro to something like this: >=20 > > #define ZIO_CHECKSUM_EQUAL(zc1, zc2) (1) >=20 > Yes, it paniced as soon as I tried zpool import. Can you tell where ZFS i= s taking > the information from, that there are I/O errors? Is this based on checksu= ms or is > there some kind of I/O-error-flag? Checksum mismatch is reported as EIO error. Not sure what else we can try. I guess you are not able to snapshot problematic datasets? --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --mxv5cy4qt+RJ9ypb Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFK117nForvXbEpPzQRAvYhAJkBAzP9CCdc+vxSNROLLHCwELyIlwCgh0Tk qCjt7yqW/WRDs6OyDi5uf10= =YbqB -----END PGP SIGNATURE----- --mxv5cy4qt+RJ9ypb--