From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932194AbWEGQiV (ORCPT ); Sun, 7 May 2006 12:38:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932195AbWEGQiV (ORCPT ); Sun, 7 May 2006 12:38:21 -0400 Received: from waste.org ([64.81.244.121]:3462 "EHLO waste.org") by vger.kernel.org with ESMTP id S932194AbWEGQiU (ORCPT ); Sun, 7 May 2006 12:38:20 -0400 Date: Sun, 7 May 2006 11:33:19 -0500 From: Matt Mackall To: Folkert van Heusden Cc: Lee Revell , "David S. Miller" , akpm@osdl.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 7/14] random: Remove SA_SAMPLE_RANDOM from network drivers Message-ID: <20060507163319.GO15445@waste.org> References: <2.420169009@selenic.com> <8.420169009@selenic.com> <20060505.141040.53473194.davem@davemloft.net> <20060506140850.GN25646@vanheusden.com> <1146928743.15364.89.camel@mindpipe> <20060507103507.GV25646@vanheusden.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060507103507.GV25646@vanheusden.com> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, May 07, 2006 at 12:35:08PM +0200, Folkert van Heusden wrote: > > > Consider adding a cheap soundcard to the system and run > > > 'audio-entropyd': www.vanheusden.com/aed > > Can't get much cheaper than the crap that comes on every motherboard > > these days ;-) > > Also aren't temp sensors (on the disk or mobo) a good entropy source? > > Not sure about that. If I look at > http://keetweej.vanheusden.com/draw_temp.php?limit=86400 it looks like > that at least the cpu sensor gets only updated every x seconds. Yeah, heat sensors are not terribly useful. Thermal insulation acts as a very aggressive low pass filter on whatever noise might exist in the input. -- Mathematics is the supreme nostalgia of our time.