Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755248AbXKSXAq (ORCPT ); Mon, 19 Nov 2007 18:00:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752300AbXKSXAi (ORCPT ); Mon, 19 Nov 2007 18:00:38 -0500 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:52043 "EHLO the-village.bc.nu" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752257AbXKSXAh (ORCPT ); Mon, 19 Nov 2007 18:00:37 -0500 Date: Mon, 19 Nov 2007 22:58:49 +0000 From: Alan Cox To: davids@webmaster.com Cc: Subject: Re: [PATCH] Time-based RFC 4122 UUID generator Message-ID: <20071119225849.4cbb7e37@the-village.bc.nu> In-Reply-To: References: X-Mailer: Claws Mail 2.10.0 (GTK+ 2.10.14; i386-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 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 Content-Length: 751 Lines: 14 > Any UUID generator that can produce duplicate UUIDs with probability > significantly less than purely random UUIDs is so badly broken that it > should not ever be used. Anyone who finds such a UUID generator should > immediately either fix it or throw it on the junk heap. Anyone who knowingly > uses such a UUID generator should be publically shamed. That depends what they are using it for. Deliberately colliding with other UUIDs is sometimes highly desirable, just not usually in productive circles. - 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/