From owner-freebsd-current@FreeBSD.ORG Tue Aug 28 16:54:45 2007 Return-Path: Delivered-To: current@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1CBB616A417 for ; Tue, 28 Aug 2007 16:54:45 +0000 (UTC) (envelope-from pjd@garage.freebsd.pl) Received: from mail.garage.freebsd.pl (arm132.internetdsl.tpnet.pl [83.17.198.132]) by mx1.freebsd.org (Postfix) with ESMTP id AEF4D13C48A for ; Tue, 28 Aug 2007 16:54:44 +0000 (UTC) (envelope-from pjd@garage.freebsd.pl) Received: by mail.garage.freebsd.pl (Postfix, from userid 65534) id 9304345E98; Tue, 28 Aug 2007 18:54:42 +0200 (CEST) Received: from localhost (154.81.datacomsa.pl [195.34.81.154]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.garage.freebsd.pl (Postfix) with ESMTP id 3EE3A45E94; Tue, 28 Aug 2007 18:54:37 +0200 (CEST) Date: Tue, 28 Aug 2007 18:53:31 +0200 From: Pawel Jakub Dawidek To: Pascal Hofstee Message-ID: <20070828165331.GA39562@garage.freebsd.pl> References: <1188311242.1052.11.camel@trinity> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="huq684BweRXVnRxX" Content-Disposition: inline In-Reply-To: <1188311242.1052.11.camel@trinity> User-Agent: Mutt/1.4.2.3i X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 7.0-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=-2.6 required=3.0 tests=BAYES_00 autolearn=ham version=3.0.4 Cc: current@FreeBSD.org Subject: Re: ZFS kernel panic X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Aug 2007 16:54:45 -0000 --huq684BweRXVnRxX Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Aug 28, 2007 at 04:27:22PM +0200, Pascal Hofstee wrote: > Hi, >=20 > For the last couple of weeks now I've occasionally been getting kernel > panics through ZFS (usually during heavy disk-i/o on the ZFS volume) > usually at the time this happened i was busy in X and therefore unable > to get to the console and force a kernel-dump. Today though it seems i > was lucky and actually managed to catch a kernel panic while in console > mode. Below is the actual panic message, i tried looking at the actual > backtrace but all the interesting frames are purely addresses without > any symbol information. I'll assume this is because of zfs and friends > being loaded as KLDs. Any information on how to provide a proper > backtrace including all symbols involved would be appreciated. >=20 > uname -a: > FreeBSD trinity.zion 7.0-CURRENT FreeBSD 7.0-CURRENT #29: Sun Aug 26 > 20:19:12 CEST 2007 pascal@trinity.zion:/usr/obj/usr/src/sys/TRINITY > i386 >=20 > panic: ZFS: I/O failure (write on off 0: zio 0xc66a9cf0 [L0 > ZFS plain file] 20000L/20000P DVA[0]=3D<0:a126e0000:20000> fletcher2 > uncompressed LE contiguous birth=3D7004722 fill=3D1 > cksum=3D2dc0c354bd8ccc27:85745b74c1352a7f:72188a8646f7f624:28d89f21264ed4= f2): e^ When you don't use redundant configuration (no mirror, no raidz, no copies>1) then ZFS is going to panic on a write failure. It looks like ZFS found a bad block on your disk. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --huq684BweRXVnRxX Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFG1FMLForvXbEpPzQRAuZKAJ9NTXMVgqEadiqtQ/IvRu9PQ5rUCgCeP9/G /eXtOE/dwyRZanCt2WegCyY= =KC3n -----END PGP SIGNATURE----- --huq684BweRXVnRxX--