From owner-freebsd-current@FreeBSD.ORG Wed Mar 17 12:05:45 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1ED931065673 for ; Wed, 17 Mar 2010 12:05:45 +0000 (UTC) (envelope-from gary.jennejohn@freenet.de) Received: from mout2.freenet.de (mout2.freenet.de [IPv6:2001:748:100:40::2:4]) by mx1.freebsd.org (Postfix) with ESMTP id A86638FC12 for ; Wed, 17 Mar 2010 12:05:44 +0000 (UTC) Received: from [195.4.92.15] (helo=5.mx.freenet.de) by mout2.freenet.de with esmtpa (ID gary.jennejohn@freenet.de) (port 25) (Exim 4.72 #1) id 1Nrs0N-0008WC-5M; Wed, 17 Mar 2010 13:05:43 +0100 Received: from p57ae23ad.dip0.t-ipconnect.de ([87.174.35.173]:59997 helo=ernst.jennejohn.org) by 5.mx.freenet.de with esmtpa (ID gary.jennejohn@freenet.de) (port 25) (Exim 4.72 #2) id 1Nrs0M-0007dt-UL; Wed, 17 Mar 2010 13:05:43 +0100 Date: Wed, 17 Mar 2010 13:05:42 +0100 From: Gary Jennejohn To: Miroslav Lachman <000.fbsd@quip.cz> Message-ID: <20100317130542.3fe19ba0@ernst.jennejohn.org> In-Reply-To: <4BA0BFED.7050103@quip.cz> References: <20100308102918.GA5485@localhost> <4B94DDC8.5080008@quip.cz> <20100308115052.GA31896@office.redwerk.com> <4B94FBA6.5090107@quip.cz> <861vfq995i.fsf@ds4.des.no> <4B9BF957.4060507@quip.cz> <86eijn3of2.fsf@ds4.des.no> <4B9CB287.9080205@quip.cz> <20100314123859.47664ace@ernst.jennejohn.org> <4B9D0C65.7000809@quip.cz> <20100314184806.3eddf33b@ernst.jennejohn.org> <4BA0BFED.7050103@quip.cz> X-Mailer: Claws Mail 3.7.5 (GTK+ 2.18.7; amd64-portbld-freebsd9.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: freebsd-current@freebsd.org Subject: Re: A tool for remapping bad sectors in CURRENT? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: gary.jennejohn@freenet.de List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Mar 2010 12:05:45 -0000 On Wed, 17 Mar 2010 12:41:33 +0100 Miroslav Lachman <000.fbsd@quip.cz> wrote: > I absolutely don't understand how you get the number 4 (it is some magic > for me :]) but it works! > > fsdb (inum: 3)> blocks > Blocks for inode 3: > Direct blocks: > 3001 (1 frag) > > 3001 * 4 = 12004 > > fsdb (inum: 3)> findblk 12004 > 12004: data block of inode 3 > > Thank you for this hint! > Umm, it's standard C code: 1 << 2 = 4. It's a power of 2, in this case 2 squared. --- Gary Jennejohn