Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 26 Apr 2001 17:23:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 26 Apr 2001 17:23:07 -0400 Received: from green.mif.pg.gda.pl ([153.19.42.8]:10766 "EHLO green.mif.pg.gda.pl") by vger.kernel.org with ESMTP id ; Thu, 26 Apr 2001 17:22:55 -0400 From: Andrzej Krzysztofowicz Message-Id: <200104262113.XAA01552@kufel.dom> Subject: Re: [PATCH] SMP race in ext2 - metadata corruption. To: kufel!transmeta.com!torvalds@green.mif.pg.gda.pl (Linus Torvalds) Date: Thu, 26 Apr 2001 23:13:30 +0200 (CEST) Cc: kufel!math.psu.edu!viro@green.mif.pg.gda.pl (Alexander Viro), kufel!suse.de!andrea@green.mif.pg.gda.pl (Andrea Arcangeli), kufel!lxorguk.ukuu.org.uk!alan@green.mif.pg.gda.pl (Alan Cox), kufel!vger.kernel.org!linux-kernel@green.mif.pg.gda.pl In-Reply-To: from "Linus Torvalds" at kwi 26, 2001 01:08:25 X-Mailer: ELM [version 2.5 PL0pre8] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > > Note that I think all these arguments are fairly bogus. Doing things like > "dump" on a live filesystem is stupid and dangerous (in my opinion it is > stupid and dangerous to use "dump" at _all_, but that's a whole 'nother > discussion in itself), and there really are no valid uses for opening a > block device that is already mounted. More importantly, I don't think > anybody actually does. I know a few people that often do: dd if=/dev/hda1 of=/dev/hdc1 e2fsck /dev/hdc1 to make an "exact" copy of a currently working system. Maybe it is stupid, but they do. Fortunately, their systems are not SMP... Andrzej - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/