Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264313AbUAVCgr (ORCPT ); Wed, 21 Jan 2004 21:36:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266088AbUAVCgr (ORCPT ); Wed, 21 Jan 2004 21:36:47 -0500 Received: from mail.shareable.org ([81.29.64.88]:8343 "EHLO mail.shareable.org") by vger.kernel.org with ESMTP id S264313AbUAVCgq (ORCPT ); Wed, 21 Jan 2004 21:36:46 -0500 Date: Thu, 22 Jan 2004 02:36:09 +0000 From: Jamie Lokier To: Matthias Schniedermeyer Cc: Bart Samwel , Timothy Miller , Valdis.Kletnieks@vt.edu, Linux Kernel Mailing List Subject: Re: [OT] Redundancy eliminating file systems, breaking MD5, donating money to OSDL Message-ID: <20040122023609.GB4392@mail.shareable.org> References: <4008480F.70206@techsource.com> <200401162037.i0GKbgWY005453@turing-police.cc.vt.edu> <4008509B.2060707@techsource.com> <200401171415.31645.bart@samwel.tk> <20040120192114.GA30755@citd.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040120192114.GA30755@citd.de> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 765 Lines: 21 Matthias Schniedermeyer wrote: > *2: I had a direcory of about 1,5 Million images and "md5sum"med them to > eliminate doubles. The Log-file, at one point, had the same md5sum as > one of the pictures. Something similar happened to me once. Two different files with the same result from md5sum. When I ran md5sum again, it still reported the same results. Then when I flushed the page cache and ran it again, it reported different results. I concluded it was a rare page cache corruption heisenbug. Scary. -- Jamie - 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/