From owner-freebsd-geom@FreeBSD.ORG Wed Mar 23 19:59:44 2005 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DF5B116A4CE for ; Wed, 23 Mar 2005 19:59:44 +0000 (GMT) Received: from mail.allbsd.org (vlsi00.si.noda.tus.ac.jp [133.31.130.32]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4280643D39 for ; Wed, 23 Mar 2005 19:59:44 +0000 (GMT) (envelope-from hrs@FreeBSD.org) Received: from delta.allbsd.org (p11053-adsau14honb8-acca.tokyo.ocn.ne.jp [220.106.47.53]) (authenticated bits=128) by mail.allbsd.org (8.13.1/8.13.1) with ESMTP id j2NJxgJR044083 for ; Thu, 24 Mar 2005 04:59:43 +0900 (JST) (envelope-from hrs@FreeBSD.org) Received: from localhost (alph.allbsd.org [192.168.0.10]) by delta.allbsd.org (8.13.1/8.13.1) with ESMTP id j2NJxLtY078675 for ; Thu, 24 Mar 2005 04:59:22 +0900 (JST) (envelope-from hrs@FreeBSD.org) Date: Thu, 24 Mar 2005 04:58:06 +0900 (JST) Message-Id: <20050324.045806.115801836.hrs@allbsd.org> To: freebsd-geom@FreeBSD.org From: Hiroki Sato X-PGPkey-fingerprint: BDB3 443F A5DD B3D0 A530 FFD7 4F2C D3D8 2793 CF2D X-Mailer: Mew version 4.2 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Multipart/Signed; protocol="application/pgp-signature"; micalg=pgp-sha1; boundary="--Security_Multipart(Thu_Mar_24_04_58_06_2005_427)--" Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.83/781/Wed Mar 23 20:58:42 2005 on gatekeeper.allbsd.org X-Virus-Status: Clean Subject: strange error of GEOM_RAID3 on RELENG_5 X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 Mar 2005 19:59:45 -0000 ----Security_Multipart(Thu_Mar_24_04_58_06_2005_427)-- Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hi, I tried to use GEOM_RAID3 with three IDE HDDs on the latest RELENG_5/i386, but the following error occurred: # kldload geom_raid3 # graid3 label data /dev/ad2s1a /dev/ad4s1a /dev/ad6s1a GEOM_RAID3[1]: Creating device data (id=134541552). GEOM_RAID3[0]: Device data created (id=134541552). GEOM_RAID3[1]: Adding disk ad2s1a to data. GEOM_RAID3[1]: Disk ad2s1a state changed from NONE to NEW (device data). GEOM_RAID3[0]: Device data: provider ad2s1a detected. GEOM_RAID3[1]: Adding disk ad4s1a to data. GEOM_RAID3[1]: Disk ad4s1a state changed from NONE to NEW (device data). GEOM_RAID3[0]: Device data: provider ad4s1a detected. GEOM_RAID3[1]: Adding disk ad6s1a to data. GEOM_RAID3[1]: Disk ad6s1a state changed from NONE to NEW (device data). GEOM_RAID3[0]: Device data: provider ad6s1a detected. GEOM_RAID3[1]: Device data state changed from STARTING to COMPLETE. GEOM_RAID3[1]: Disk ad2s1a state changed from NEW to ACTIVE (device data). GEOM_RAID3[0]: Device data: provider ad2s1a activated. GEOM_RAID3[1]: Disk ad4s1a state changed from NEW to ACTIVE (device data). GEOM_RAID3[0]: Device data: provider ad4s1a activated. GEOM_RAID3[1]: Disk ad6s1a state changed from NEW to ACTIVE (device data). GEOM_RAID3[0]: Device data: provider ad6s1a activated. GEOM_RAID3[0]: Device data: provider raid3/data launched. # diskinfo -v /dev/raid3/data /dev/raid3/data 1024 # sectorsize 214748363776 # mediasize in bytes (200G) 209715199 # mediasize in sectors # dd if=/dev/zero of=/dev/raid3/data skip=1000 bs=1024 count=1 1+0 records in 1+0 records out 1024 bytes transferred in 0.000328 secs (3121343 bytes/sec) GEOM_RAID3[1]: Disk ad2s1a (device data) marked as dirty. GEOM_RAID3[1]: Disk ad4s1a (device data) marked as dirty. GEOM_RAID3[1]: Disk ad6s1a (device data) marked as dirty. GEOM_RAID3[1]: Disk ad2s1a (device data) marked as clean. GEOM_RAID3[1]: Disk ad4s1a (device data) marked as clean. GEOM_RAID3[1]: Disk ad6s1a (device data) marked as clean. # dd if=/dev/zero of=/dev/raid3/data skip=0 bs=1024 count=1 1+0 records in 1+0 records out 1024 bytes transferred in 0.000701 secs (1460873 bytes/sec) GEOM_RAID3[1]: Disk ad2s1a (device data) marked as dirty. GEOM_RAID3[1]: Disk ad4s1a (device data) marked as dirty. GEOM_RAID3[1]: Disk ad6s1a (device data) marked as dirty. GEOM_RAID3[1]: Disk ad2s1a (device data) marked as clean. GEOM_RAID3[1]: Disk ad4s1a (device data) marked as clean. GEOM_RAID3[1]: Disk ad6s1a (device data) marked as clean. # dd if=/dev/zero of=/dev/raid3/data skip=0 bs=1024 count=2 dd: /dev/raid3/data: Operation not permitted 2+0 records in 1+0 records out 1024 bytes transferred in 0.697947 secs (1467 bytes/sec) GEOM_RAID3[1]: Disk ad2s1a (device data) marked as dirty. GEOM_RAID3[1]: Disk ad4s1a (device data) marked as dirty. GEOM_RAID3[1]: Disk ad6s1a (device data) marked as dirty. GEOM_RAID3[0]: Request failed. raid3/data[WRITE(offset=1024, length=1024)] GEOM_RAID3[1]: Disk ad2s1a state changed from ACTIVE to DISCONNECTED (device data). GEOM_RAID3[0]: Device data: provider ad2s1a disconnected. GEOM_RAID3[1]: Device data: genid bumped to 1. GEOM_RAID3[1]: Device data state changed from COMPLETE to DEGRADED. GEOM_RAID3[1]: Disk ad4s1a state changed from ACTIVE to DISCONNECTED (device data). GEOM_RAID3[0]: Device data: provider ad4s1a disconnected. GEOM_RAID3[0]: Device data: provider raid3/data destroyed. GEOM_RAID3[0]: Device data destroyed. GEOM_RAID3[1]: Consumer ad2s1a destroyed. GEOM_RAID3[1]: Consumer ad4s1a destroyed. GEOM_RAID3[1]: Consumer ad6s1a destroyed. I do not know why but writing of some specific lengths seems to occur this error. If I am missing something, please let me know. Thanks. -- | Hiroki SATO ----Security_Multipart(Thu_Mar_24_04_58_06_2005_427)-- Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQBCQcpQTyzT2CeTzy0RAhBUAJ9504AVN/sJ/cv1XhG2WZwa7ELQAQCgyPoW EgMgibKUfMUXrmFZGWkJF0o= =e3rc -----END PGP SIGNATURE----- ----Security_Multipart(Thu_Mar_24_04_58_06_2005_427)---- From owner-freebsd-geom@FreeBSD.ORG Wed Mar 23 20:48:45 2005 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C198816A4CE; Wed, 23 Mar 2005 20:48:45 +0000 (GMT) Received: from darkness.comp.waw.pl (darkness.comp.waw.pl [195.117.238.136]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3A36443D1D; Wed, 23 Mar 2005 20:48:45 +0000 (GMT) (envelope-from pjd@darkness.comp.waw.pl) Received: by darkness.comp.waw.pl (Postfix, from userid 1009) id 26743ACAEE; Wed, 23 Mar 2005 21:48:43 +0100 (CET) Date: Wed, 23 Mar 2005 21:48:43 +0100 From: Pawel Jakub Dawidek To: Hiroki Sato Message-ID: <20050323204843.GR591@darkness.comp.waw.pl> References: <20050324.045806.115801836.hrs@allbsd.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="Yzwzo2Lpb9tBI5S/" Content-Disposition: inline In-Reply-To: <20050324.045806.115801836.hrs@allbsd.org> User-Agent: Mutt/1.4.2i X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 5.2.1-RC2 i386 cc: freebsd-geom@FreeBSD.org Subject: Re: strange error of GEOM_RAID3 on RELENG_5 X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 Mar 2005 20:48:45 -0000 --Yzwzo2Lpb9tBI5S/ Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Mar 24, 2005 at 04:58:06AM +0900, Hiroki Sato wrote: +> # dd if=3D/dev/zero of=3D/dev/raid3/data skip=3D0 bs=3D1024 count=3D2 +> dd: /dev/raid3/data: Operation not permitted +> 2+0 records in +> 1+0 records out +> 1024 bytes transferred in 0.697947 secs (1467 bytes/sec) +> GEOM_RAID3[1]: Disk ad2s1a (device data) marked as dirty. +> GEOM_RAID3[1]: Disk ad4s1a (device data) marked as dirty. +> GEOM_RAID3[1]: Disk ad6s1a (device data) marked as dirty. +> GEOM_RAID3[0]: Request failed. raid3/data[WRITE(offset=3D1024, length= =3D1024)] +> GEOM_RAID3[1]: Disk ad2s1a state changed from ACTIVE to DISCONNECTED (d= evice data). +> GEOM_RAID3[0]: Device data: provider ad2s1a disconnected. +> GEOM_RAID3[1]: Device data: genid bumped to 1. +> GEOM_RAID3[1]: Device data state changed from COMPLETE to DEGRADED. +> GEOM_RAID3[1]: Disk ad4s1a state changed from ACTIVE to DISCONNECTED (d= evice data). +> GEOM_RAID3[0]: Device data: provider ad4s1a disconnected. +> GEOM_RAID3[0]: Device data: provider raid3/data destroyed. +> GEOM_RAID3[0]: Device data destroyed. +> GEOM_RAID3[1]: Consumer ad2s1a destroyed. +> GEOM_RAID3[1]: Consumer ad4s1a destroyed. +> GEOM_RAID3[1]: Consumer ad6s1a destroyed. +>=20 +> I do not know why but writing of some specific lengths seems to +> occur this error. If I am missing something, please let me know. Thanks for the report, but I'm not able to reproduce it here. Could you increase debug level to 3 and rerun the command which fails? --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --Yzwzo2Lpb9tBI5S/ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFCQdYrForvXbEpPzQRAsIvAJ9j5f63+KtQCVqaVUWZJ75Aqu5ixgCbBp6a pqjEHyjjK7eXAJsOcWO8wtg= =7WDs -----END PGP SIGNATURE----- --Yzwzo2Lpb9tBI5S/-- From owner-freebsd-geom@FreeBSD.ORG Thu Mar 24 02:44:31 2005 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8ACD816A4CF; Thu, 24 Mar 2005 02:44:31 +0000 (GMT) Received: from mail.allbsd.org (vlsi00.si.noda.tus.ac.jp [133.31.130.32]) by mx1.FreeBSD.org (Postfix) with ESMTP id D41C543D5A; Thu, 24 Mar 2005 02:44:29 +0000 (GMT) (envelope-from hrs@FreeBSD.org) Received: from delta.allbsd.org (p11053-adsau14honb8-acca.tokyo.ocn.ne.jp [220.106.47.53]) (authenticated bits=128) by mail.allbsd.org (8.13.1/8.13.1) with ESMTP id j2O2iQnN047671; Thu, 24 Mar 2005 11:44:27 +0900 (JST) (envelope-from hrs@FreeBSD.org) Received: from localhost (alph.allbsd.org [192.168.0.10]) by delta.allbsd.org (8.13.1/8.13.1) with ESMTP id j2O2i1nd080989; Thu, 24 Mar 2005 11:44:01 +0900 (JST) (envelope-from hrs@FreeBSD.org) Date: Thu, 24 Mar 2005 11:43:58 +0900 (JST) Message-Id: <20050324.114358.128889856.hrs@allbsd.org> To: pjd@FreeBSD.org From: Hiroki Sato In-Reply-To: <20050323204843.GR591@darkness.comp.waw.pl> References: <20050324.045806.115801836.hrs@allbsd.org> <20050323204843.GR591@darkness.comp.waw.pl> X-PGPkey-fingerprint: BDB3 443F A5DD B3D0 A530 FFD7 4F2C D3D8 2793 CF2D X-Mailer: Mew version 4.2 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Multipart/Signed; protocol="application/pgp-signature"; micalg=pgp-sha1; boundary="--Security_Multipart(Thu_Mar_24_11_43_58_2005_840)--" Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.83/781/Wed Mar 23 20:58:42 2005 on gatekeeper.allbsd.org X-Virus-Status: Clean cc: freebsd-geom@FreeBSD.org Subject: Re: strange error of GEOM_RAID3 on RELENG_5 X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Mar 2005 02:44:31 -0000 ----Security_Multipart(Thu_Mar_24_11_43_58_2005_840)-- Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hi, Pawel Jakub Dawidek wrote in <20050323204843.GR591@darkness.comp.waw.pl>: pj> Thanks for the report, but I'm not able to reproduce it here. pj> Could you increase debug level to 3 and rerun the command which fails? Yes, here is a log with kern.geom.raid3.debug=3: # dd if=/dev/zero of=/dev/raid3/data bs=1024 count=2 GEOM_RAID3[2]: Access request for raid3/data: r1w1e0. GEOM_RAID3[1]: Disk ad2s1a (device data) marked as dirty. GEOM_RAID3[2]: Metadata on ad2s1a updated. GEOM_RAID3[1]: Disk ad4s1a (device data) marked as dirty. GEOM_RAID3[2]: Metadata on ad4s1a updated. GEOM_RAID3[1]: Disk ad6s1a (device data) marked as dirty. GEOM_RAID3[2]: Metadata on ad6s1a updated. GEOM_RAID3[3]: Request received. raid3/data[WRITE(offset=0, length=1024)] GEOM_RAID3[3]: Sending request. ad2s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Sending request. ad4s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Sending request. ad6s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Regular request done (error=0). ad4s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Regular request done (error=0). ad6s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Regular request done (error=0). ad2s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Request finished. ad2s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Request finished. ad6s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Request finished. ad4s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Request finished. raid3/data[WRITE(offset=0, length=1024)] GEOM_RAID3[3]: Request received. raid3/data[WRITE(offset=1024, length=1024)] GEOM_RAID3[3]: Sending request. ad2s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Sending request. ad4s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Sending request. ad6s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Regular request done (error=1). ad2s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Regular request done (error=1). ad4s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Regular request done (error=1). ad6s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Request finished. ad6s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Request finished. ad4s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Request finished. ad2s1a[WRITE(offset=512, length=512)] GEOM_RAID3[0]: Request failed. raid3/data[WRITE(offset=1024, length=1024)] GEOM_RAID3[3]: Running event for disk ad2s1a. GEOM_RAID3[3]: Changing disk ad2s1a state from ACTIVE to DISCONNECTED. GEOM_RAID3[1]: Disk ad2s1a state changed from ACTIVE to DISCONNECTED (device data). GEOM_RAID3[0]: Device data: provider ad2s1a disconnected. GEOM_RAID3[2]: Consumer ad2s1a destroyed. GEOM_RAID3[2]: Access ad2s1a r-1w-1e-1 = 0 GEOM_RAID3[1]: Device data: genid bumped to 1. GEOM_RAID3[2]: Tasting ad2. GEOM_RAID3[2]: Metadata on ad4s1a updated. GEOM_RAID3[2]: Metadata on ad6s1a updated. GEOM_RAID3[1]: Device data state changed from COMPLETE to DEGRADED. GEOM_RAID3[3]: Running event for disk ad4s1a. GEOM_RAID3[3]: Changing disk ad4s1a state from ACTIVE to DISCONNECTED. GEOM_RAID3[1]: Disk ad4s1a state changed from ACTIVE to DISCONNECTED (device data). GEOM_RAID3[0]: Device data: provider ad4s1a disconnected. GEOM_RAID3[2]: Consumer ad4s1a destroyed. GEOM_RAID3[2]: Access ad4s1a r-1w-1e-1 = 0 GEOM_RAID3[0]: Device data: provider raid3/data destroyed. GEOM_RAID3[2]: No I/O requests for data, it can be destroyed. GEOM_RAID3[2]: Access request for raid3/data: r-1w-1e0. GEOM_RAID3[2]: Tasting ad2s1. GEOM_RAID3[2]: Metadata on ad6s1a updated. GEOM_RAID3[2]: Consumer ad6s1a destroyed. GEOM_RAID3[2]: Access ad6s1a r-1w-1e-1 = 0 GEOM_RAID3[0]: Device data destroyed. GEOM_RAID3[1]: Consumer ad2s1a destroyed. GEOM_RAID3[2]: Tasting ad4. GEOM_RAID3[2]: Tasting ad4s1. GEOM_RAID3[1]: Consumer ad4s1a destroyed. GEOM_RAID3[2]: Tasting ad6. GEOM_RAID3[2]: Tasting ad6s1. GEOM_RAID3[1]: Consumer ad6s1a destroyed. dd: /dev/raid3/data: Operation not permitted 2+0 records in 1+0 records out 1024 bytes transferred in 3.782560 secs (271 bytes/sec) -- | Hiroki SATO ----Security_Multipart(Thu_Mar_24_11_43_58_2005_840)-- Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQBCQiluTyzT2CeTzy0RAgzVAJ4kFTk4rBeLeN+gf3hVmFHQbT8vBQCggfJb YYGvoa5okUY97+XU59O2Lk0= =kj+b -----END PGP SIGNATURE----- ----Security_Multipart(Thu_Mar_24_11_43_58_2005_840)---- From owner-freebsd-geom@FreeBSD.ORG Thu Mar 24 08:23:22 2005 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0807716A4CE; Thu, 24 Mar 2005 08:23:22 +0000 (GMT) Received: from darkness.comp.waw.pl (darkness.comp.waw.pl [195.117.238.136]) by mx1.FreeBSD.org (Postfix) with ESMTP id 68C8843D66; Thu, 24 Mar 2005 08:23:21 +0000 (GMT) (envelope-from pjd@darkness.comp.waw.pl) Received: by darkness.comp.waw.pl (Postfix, from userid 1009) id 9AB86ACB34; Thu, 24 Mar 2005 09:23:19 +0100 (CET) Date: Thu, 24 Mar 2005 09:23:19 +0100 From: Pawel Jakub Dawidek To: Hiroki Sato Message-ID: <20050324082319.GU591@darkness.comp.waw.pl> References: <20050324.045806.115801836.hrs@allbsd.org> <20050323204843.GR591@darkness.comp.waw.pl> <20050324.114358.128889856.hrs@allbsd.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="sC1KxrFoiW8MuHBc" Content-Disposition: inline In-Reply-To: <20050324.114358.128889856.hrs@allbsd.org> User-Agent: Mutt/1.4.2i X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 5.2.1-RC2 i386 cc: freebsd-geom@FreeBSD.org Subject: Re: strange error of GEOM_RAID3 on RELENG_5 X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Mar 2005 08:23:22 -0000 --sC1KxrFoiW8MuHBc Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Mar 24, 2005 at 11:43:58AM +0900, Hiroki Sato wrote: +> Hi, +>=20 +> Pawel Jakub Dawidek wrote +> in <20050323204843.GR591@darkness.comp.waw.pl>: +>=20 +> pj> Thanks for the report, but I'm not able to reproduce it here. +> pj> Could you increase debug level to 3 and rerun the command which fail= s? +>=20 +> Yes, here is a log with kern.geom.raid3.debug=3D3: +>=20 +> # dd if=3D/dev/zero of=3D/dev/raid3/data bs=3D1024 count=3D2 +> GEOM_RAID3[3]: Sending request. ad2s1a[WRITE(offset=3D512, length=3D512= )] +> GEOM_RAID3[3]: Sending request. ad4s1a[WRITE(offset=3D512, length=3D512= )] +> GEOM_RAID3[3]: Sending request. ad6s1a[WRITE(offset=3D512, length=3D512= )] +> GEOM_RAID3[3]: Regular request done (error=3D1). ad2s1a[WRITE(offset=3D= 512, length=3D512)] +> GEOM_RAID3[3]: Regular request done (error=3D1). ad4s1a[WRITE(offset=3D= 512, length=3D512)] +> GEOM_RAID3[3]: Regular request done (error=3D1). ad6s1a[WRITE(offset=3D= 512, length=3D512)] [...] EPERM?? Are you sure that doing (when raid3 is not configured): # dd if=3D/dev/zero of=3D/dev/ad2s1a skip=3D1 count=3D1 works? If it works, please try this patch and show me the output once again: http://people.freebsd.org/~pjd/patches/g_raid3.c.2.patch --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --sC1KxrFoiW8MuHBc Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFCQnj3ForvXbEpPzQRAis0AJ4gNEjCIDb3REFHCzRbYqZEJ158dgCgtLIR 3NyAKhrVrmFp95vR+8Au3o4= =tfz+ -----END PGP SIGNATURE----- --sC1KxrFoiW8MuHBc-- From owner-freebsd-geom@FreeBSD.ORG Thu Mar 24 09:31:39 2005 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7199016A4CE; Thu, 24 Mar 2005 09:31:39 +0000 (GMT) Received: from mail.allbsd.org (vlsi00.si.noda.tus.ac.jp [133.31.130.32]) by mx1.FreeBSD.org (Postfix) with ESMTP id A6C7C43D3F; Thu, 24 Mar 2005 09:31:38 +0000 (GMT) (envelope-from hrs@FreeBSD.org) Received: from delta.allbsd.org (p11053-adsau14honb8-acca.tokyo.ocn.ne.jp [220.106.47.53]) (authenticated bits=128) by mail.allbsd.org (8.13.1/8.13.1) with ESMTP id j2O9VZ4V052525; Thu, 24 Mar 2005 18:31:36 +0900 (JST) (envelope-from hrs@FreeBSD.org) Received: from localhost (alph.allbsd.org [192.168.0.10]) by delta.allbsd.org (8.13.1/8.13.1) with ESMTP id j2O9VCkA082676; Thu, 24 Mar 2005 18:31:13 +0900 (JST) (envelope-from hrs@FreeBSD.org) Date: Thu, 24 Mar 2005 18:30:55 +0900 (JST) Message-Id: <20050324.183055.74659435.hrs@allbsd.org> To: pjd@FreeBSD.org From: Hiroki Sato In-Reply-To: <20050324082319.GU591@darkness.comp.waw.pl> References: <20050323204843.GR591@darkness.comp.waw.pl> <20050324.114358.128889856.hrs@allbsd.org> <20050324082319.GU591@darkness.comp.waw.pl> X-PGPkey-fingerprint: BDB3 443F A5DD B3D0 A530 FFD7 4F2C D3D8 2793 CF2D X-Mailer: Mew version 4.2 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Multipart/Signed; protocol="application/pgp-signature"; micalg=pgp-sha1; boundary="--Security_Multipart(Thu_Mar_24_18_30_55_2005_253)--" Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.83/781/Wed Mar 23 20:58:42 2005 on gatekeeper.allbsd.org X-Virus-Status: Clean cc: freebsd-geom@FreeBSD.org Subject: Re: strange error of GEOM_RAID3 on RELENG_5 X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Mar 2005 09:31:39 -0000 ----Security_Multipart(Thu_Mar_24_18_30_55_2005_253)-- Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Pawel Jakub Dawidek wrote in <20050324082319.GU591@darkness.comp.waw.pl>: pj> EPERM?? Are you sure that doing (when raid3 is not configured): pj> pj> # dd if=/dev/zero of=/dev/ad2s1a skip=1 count=1 pj> pj> works? Yes, this and of=/dev/ad{4,6}s1a work without problems. pj> If it works, please try this patch and show me the output once again: pj> pj> http://people.freebsd.org/~pjd/patches/g_raid3.c.2.patch # dd if=/dev/zero of=/dev/raid3/data bs=1024 count=2 GEOM_RAID3[2]: Access request for raid3/data: r1w1e0. GEOM_RAID3[1]: Disk ad2s1a (device data) marked as dirty. GEOM_RAID3[2]: Metadata on ad2s1a updated. GEOM_RAID3[1]: Disk ad4s1a (device data) marked as dirty. GEOM_RAID3[2]: Metadata on ad4s1a updated. GEOM_RAID3[1]: Disk ad6s1a (device data) marked as dirty. GEOM_RAID3[2]: Metadata on ad6s1a updated. GEOM_RAID3[3]: Request received. raid3/data[WRITE(offset=0, length=1024)] GEOM_RAID3[3]: Sending request. ad2s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Sending request. ad4s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Sending request. ad6s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Regular request done (error=0). ad2s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Request finished. ad2s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Regular request done (error=0). ad4s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Regular request done (error=0). ad6s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Request finished. ad6s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Request finished. ad4s1a[WRITE(offset=0, length=512)] GEOM_RAID3[3]: Request finished. raid3/data[WRITE(offset=0, length=1024)] GEOM_RAID3[3]: Request received. raid3/data[WRITE(offset=1024, length=1024)] GEOM_RAID3[3]: Sending request. ad2s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Sending request. ad4s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Sending request. ad6s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Regular request done (error=1). ad2s1a[WRITE(offset=512, length=512)] GEOM_RAID3[0]: Regular request failed (error=1) (r1w1e1). ad2s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Regular request done (error=1). ad4s1a[WRITE(offset=512, length=512)] GEOM_RAID3[0]: Regular request failed (error=1) (r1w1e1). ad4s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Regular request done (error=1). ad6s1a[WRITE(offset=512, length=512)] GEOM_RAID3[0]: Regular request failed (error=1) (r1w1e1). ad6s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Request finished. ad6s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Request finished. ad4s1a[WRITE(offset=512, length=512)] GEOM_RAID3[3]: Request finished. ad2s1a[WRITE(offset=512, length=512)] GEOM_RAID3[0]: Request failed. raid3/data[WRITE(offset=1024, length=1024)] GEOM_RAID3[3]: Running event for disk ad2s1a. GEOM_RAID3[3]: Changing disk ad2s1a state from ACTIVE to DISCONNECTED. GEOM_RAID3[1]: Disk ad2s1a state changed from ACTIVE to DISCONNECTED (device data). GEOM_RAID3[0]: Device data: provider ad2s1a disconnected. GEOM_RAID3[2]: Consumer ad2s1a destroyed. GEOM_RAID3[2]: Access ad2s1a r-1w-1e-1 = 0 GEOM_RAID3[1]: Device data: genid bumped to 1. GEOM_RAID3[2]: Tasting ad2. GEOM_RAID3[2]: Metadata on ad4s1a updated. GEOM_RAID3[2]: Metadata on ad6s1a updated. GEOM_RAID3[1]: Device data state changed from COMPLETE to DEGRADED. GEOM_RAID3[3]: Running event for disk ad4s1a. GEOM_RAID3[3]: Changing disk ad4s1a state from ACTIVE to DISCONNECTED. GEOM_RAID3[1]: Disk ad4s1a state changed from ACTIVE to DISCONNECTED (device data). GEOM_RAID3[0]: Device data: provider ad4s1a disconnected. GEOM_RAID3[2]: Consumer ad4s1a destroyed. GEOM_RAID3[2]: Access ad4s1a r-1w-1e-1 = 0 GEOM_RAID3[0]: Device data: provider raid3/data destroyed. GEOM_RAID3[2]: No I/O requests for data, it can be destroyed. GEOM_RAID3[2]: Access request for raid3/data: r-1w-1e0. GEOM_RAID3[2]: Tasting ad2s1. GEOM_RAID3[2]: Metadata on ad6s1a updated. GEOM_RAID3[2]: Consumer ad6s1a destroyed. GEOM_RAID3[2]: Access ad6s1a r-1w-1e-1 = 0 GEOM_RAID3[0]: Device data destroyed. GEOM_RAID3[1]: Consumer ad2s1a destroyed. GEOM_RAID3[2]: Tasting ad4. GEOM_RAID3[2]: Tasting ad4s1. GEOM_RAID3[1]: Consumer ad4s1a destroyed. GEOM_RAID3[2]: Tasting ad6. GEOM_RAID3[2]: Tasting ad6s1. GEOM_RAID3[1]: Consumer ad6s1a destroyed. -- | Hiroki SATO ----Security_Multipart(Thu_Mar_24_18_30_55_2005_253)-- Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQBCQojSTyzT2CeTzy0RAnNIAKC5gYEHD/7vO39kvfdMwyWVLP2iqACgy1G5 y+N8KkZivJCLNTK4vmgKxaE= =uXtF -----END PGP SIGNATURE----- ----Security_Multipart(Thu_Mar_24_18_30_55_2005_253)---- From owner-freebsd-geom@FreeBSD.ORG Thu Mar 24 13:56:06 2005 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D5EC816A4CE; Thu, 24 Mar 2005 13:56:06 +0000 (GMT) Received: from darkness.comp.waw.pl (darkness.comp.waw.pl [195.117.238.136]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5D68543D4C; Thu, 24 Mar 2005 13:56:04 +0000 (GMT) (envelope-from pjd@darkness.comp.waw.pl) Received: by darkness.comp.waw.pl (Postfix, from userid 1009) id 8628EACC26; Thu, 24 Mar 2005 14:56:02 +0100 (CET) Date: Thu, 24 Mar 2005 14:56:02 +0100 From: Pawel Jakub Dawidek To: Hiroki Sato Message-ID: <20050324135602.GZ591@darkness.comp.waw.pl> References: <20050323204843.GR591@darkness.comp.waw.pl> <20050324.114358.128889856.hrs@allbsd.org> <20050324082319.GU591@darkness.comp.waw.pl> <20050324.183055.74659435.hrs@allbsd.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="waAWgznbqtWOzvJZ" Content-Disposition: inline In-Reply-To: <20050324.183055.74659435.hrs@allbsd.org> User-Agent: Mutt/1.4.2i X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 5.2.1-RC2 i386 cc: freebsd-geom@FreeBSD.org Subject: Re: strange error of GEOM_RAID3 on RELENG_5 X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Mar 2005 13:56:06 -0000 --waAWgznbqtWOzvJZ Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Mar 24, 2005 at 06:30:55PM +0900, Hiroki Sato wrote: +> pj> If it works, please try this patch and show me the output once again: +> pj>=20 +> pj> http://people.freebsd.org/~pjd/patches/g_raid3.c.2.patch +>=20 +> # dd if=3D/dev/zero of=3D/dev/raid3/data bs=3D1024 count=3D2 +> GEOM_RAID3[3]: Sending request. ad2s1a[WRITE(offset=3D512, length=3D512)] +> GEOM_RAID3[3]: Sending request. ad4s1a[WRITE(offset=3D512, length=3D512)] +> GEOM_RAID3[3]: Sending request. ad6s1a[WRITE(offset=3D512, length=3D512)] +> GEOM_RAID3[3]: Regular request done (error=3D1). ad2s1a[WRITE(offset=3D5= 12, length=3D512)] +> GEOM_RAID3[0]: Regular request failed (error=3D1) (r1w1e1). ad2s1a[WRITE= (offset=3D512, length=3D512)] +> GEOM_RAID3[3]: Regular request done (error=3D1). ad4s1a[WRITE(offset=3D5= 12, length=3D512)] +> GEOM_RAID3[0]: Regular request failed (error=3D1) (r1w1e1). ad4s1a[WRITE= (offset=3D512, length=3D512)] +> GEOM_RAID3[3]: Regular request done (error=3D1). ad6s1a[WRITE(offset=3D5= 12, length=3D512)] +> GEOM_RAID3[0]: Regular request failed (error=3D1) (r1w1e1). ad6s1a[WRITE= (offset=3D512, length=3D512)] This is very strange and I've no idea why you get EPERM from ad[246]s1a. You may also try to set kern.geom.debugflags to 7 and send me the output once again. Before setting kern.geom.debugflags better turn off syslogd. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --waAWgznbqtWOzvJZ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFCQsbyForvXbEpPzQRAs01AJ9MlV0sXjwPZVX9R+4e/OT07SuTCACfTYQq 1U+14fBS6JoZJ4bf4V28DpA= =XfMq -----END PGP SIGNATURE----- --waAWgznbqtWOzvJZ-- From owner-freebsd-geom@FreeBSD.ORG Fri Mar 25 05:26:08 2005 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 00AFA16A4CE; Fri, 25 Mar 2005 05:26:08 +0000 (GMT) Received: from mail.allbsd.org (vlsi00.si.noda.tus.ac.jp [133.31.130.32]) by mx1.FreeBSD.org (Postfix) with ESMTP id 360D043D3F; Fri, 25 Mar 2005 05:26:07 +0000 (GMT) (envelope-from hrs@FreeBSD.org) Received: from delta.allbsd.org (p11053-adsau14honb8-acca.tokyo.ocn.ne.jp [220.106.47.53]) (authenticated bits=128) by mail.allbsd.org (8.13.1/8.13.1) with ESMTP id j2P5Q3N7059966; Fri, 25 Mar 2005 14:26:05 +0900 (JST) (envelope-from hrs@FreeBSD.org) Received: from localhost (alph.allbsd.org [192.168.0.10]) by delta.allbsd.org (8.13.1/8.13.1) with ESMTP id j2P5PojK089176; Fri, 25 Mar 2005 14:25:51 +0900 (JST) (envelope-from hrs@FreeBSD.org) Date: Fri, 25 Mar 2005 14:25:33 +0900 (JST) Message-Id: <20050325.142533.35104027.hrs@allbsd.org> To: pjd@FreeBSD.org From: Hiroki Sato In-Reply-To: <20050324135602.GZ591@darkness.comp.waw.pl> References: <20050324082319.GU591@darkness.comp.waw.pl> <20050324.183055.74659435.hrs@allbsd.org> <20050324135602.GZ591@darkness.comp.waw.pl> X-PGPkey-fingerprint: BDB3 443F A5DD B3D0 A530 FFD7 4F2C D3D8 2793 CF2D X-Mailer: Mew version 4.2 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Multipart/Signed; protocol="application/pgp-signature"; micalg=pgp-sha1; boundary="--Security_Multipart(Fri_Mar_25_14_25_33_2005_879)--" Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.83/782/Thu Mar 24 21:29:35 2005 on gatekeeper.allbsd.org X-Virus-Status: Clean cc: freebsd-geom@FreeBSD.org Subject: Re: strange error of GEOM_RAID3 on RELENG_5 X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 25 Mar 2005 05:26:08 -0000 ----Security_Multipart(Fri_Mar_25_14_25_33_2005_879)-- Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Pawel Jakub Dawidek wrote in <20050324135602.GZ591@darkness.comp.waw.pl>: pj> This is very strange and I've no idea why you get EPERM from ad[246]s1a. Ah, I found a simple use of dd failed. Sorry for the false alarm... I used a disklabel like this: a: 100g * 4.2BSD c: * * unused When the offset of /dev/ad2s1a is 0, "dd if=/dev/zero of=/dev/ad2s1a bs=512 count=1" works fine but "dd if=/dev/zero of=/dev/ad2s1a bs=512 count=2" fails (count > 2 or bs!=512 also occurs EPERM with whatever skip= value). When the offset is set to >2, dd works as expected. The second sector seems to contain the disklabel information and "disklabel -w /dev/ad2s1a auto" generates an offset of 16 for a: partition. Is using an offset of 0 wrong? I assumed that the offset can be 0 and /dev/ad2s1a does not (effectively) overlap with the disklabel area and so on, but am I mistaken about it? And if the offset is necessary, I still do not understand why "dd if=/dev/zero of=/dev/ad2s1a bs=512 count=2 skip=1000" fails. -- | Hiroki SATO ----Security_Multipart(Fri_Mar_25_14_25_33_2005_879)-- Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD4DBQBCQ6DNTyzT2CeTzy0RApjwAJivZ8/aU2TEUjWIPZoXvoSd3bHnAKCB4htT sHfHqrEYU1gsDvtoeNELHg== =DMHT -----END PGP SIGNATURE----- ----Security_Multipart(Fri_Mar_25_14_25_33_2005_879)---- From owner-freebsd-geom@FreeBSD.ORG Fri Mar 25 10:41:25 2005 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D649E16A4CE; Fri, 25 Mar 2005 10:41:25 +0000 (GMT) Received: from darkness.comp.waw.pl (darkness.comp.waw.pl [195.117.238.136]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0D72743D49; Fri, 25 Mar 2005 10:41:25 +0000 (GMT) (envelope-from pjd@darkness.comp.waw.pl) Received: by darkness.comp.waw.pl (Postfix, from userid 1009) id CF9FAACB34; Fri, 25 Mar 2005 11:41:20 +0100 (CET) Date: Fri, 25 Mar 2005 11:41:20 +0100 From: Pawel Jakub Dawidek To: Hiroki Sato Message-ID: <20050325104120.GG591@darkness.comp.waw.pl> References: <20050324082319.GU591@darkness.comp.waw.pl> <20050324.183055.74659435.hrs@allbsd.org> <20050324135602.GZ591@darkness.comp.waw.pl> <20050325.142533.35104027.hrs@allbsd.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="W39hVXXos07RO0vT" Content-Disposition: inline In-Reply-To: <20050325.142533.35104027.hrs@allbsd.org> User-Agent: Mutt/1.4.2i X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 5.2.1-RC2 i386 cc: phk@FreeBSD.org cc: freebsd-geom@FreeBSD.org Subject: Re: strange error of GEOM_RAID3 on RELENG_5 X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 25 Mar 2005 10:41:26 -0000 --W39hVXXos07RO0vT Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Mar 25, 2005 at 02:25:33PM +0900, Hiroki Sato wrote: +> Pawel Jakub Dawidek wrote +> in <20050324135602.GZ591@darkness.comp.waw.pl>: +>=20 +> pj> This is very strange and I've no idea why you get EPERM from ad[246]= s1a. +>=20 +> Ah, I found a simple use of dd failed. Sorry for the false alarm... +>=20 +> I used a disklabel like this: +>=20 +> a: 100g * 4.2BSD +> c: * * unused +>=20 +> When the offset of /dev/ad2s1a is 0, +> "dd if=3D/dev/zero of=3D/dev/ad2s1a bs=3D512 count=3D1" works fine but +> "dd if=3D/dev/zero of=3D/dev/ad2s1a bs=3D512 count=3D2" fails (count > = 2 or +> bs!=3D512 also occurs EPERM with whatever skip=3D value). +> When the offset is set to >2, dd works as expected. +>=20 +> The second sector seems to contain the disklabel information +> and "disklabel -w /dev/ad2s1a auto" generates an offset +> of 16 for a: partition. Is using an offset of 0 wrong? +> I assumed that the offset can be 0 and /dev/ad2s1a does not +> (effectively) overlap with the disklabel area and so on, +> but am I mistaken about it? +>=20 +> And if the offset is necessary, I still do not understand why +> "dd if=3D/dev/zero of=3D/dev/ad2s1a bs=3D512 count=3D2 skip=3D1000" fai= ls. Offset 0 is bogus for 'a' partition - it means, you can overwrite BSD label by writting to the partition. bsdlabel(8) generated 'a' partition at offset 16, which is ok, but sysinstall do it at offset 0. I've no idea why your dd test with count=3D200 fails... PS. CCing phk@ --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --W39hVXXos07RO0vT Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFCQ+rQForvXbEpPzQRAkcFAKCL/rg86tYZlO6TV2Cu3ncXBhMZ6gCgm9Mo gg2AN8sgX5WSB+Rr8FwAJcc= =gjdL -----END PGP SIGNATURE----- --W39hVXXos07RO0vT--