From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764388AbYEOV6s (ORCPT ); Thu, 15 May 2008 17:58:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752349AbYEOV6h (ORCPT ); Thu, 15 May 2008 17:58:37 -0400 Received: from srv5.dvmed.net ([207.36.208.214]:43865 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752239AbYEOV6g (ORCPT ); Thu, 15 May 2008 17:58:36 -0400 Message-ID: <482CB1FB.7080807@garzik.org> Date: Thu, 15 May 2008 17:58:19 -0400 From: Jeff Garzik User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: Theodore Tso , Chris Peterson , "Kok, Auke" , Rick Jones , "Brandeburg, Jesse" , Alan Cox , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] drivers/net: remove network drivers' last few uses of IRQF_SAMPLE_RANDOM References: <20080515142154.0595e475@core> <36D9DB17C6DE9E40B059440DB8D95F52052D71BB@orsmsx418.amr.corp.intel.com> <482C7B18.6060003@garzik.org> <482C7E53.3050300@hp.com> <482C8184.2030906@garzik.org> <482C8550.5000909@intel.com> <482C8D4D.3040702@garzik.org> <20080515214721.GP18825@mit.edu> In-Reply-To: <20080515214721.GP18825@mit.edu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.4 (----) X-Spam-Report: SpamAssassin version 3.2.4 on srv5.dvmed.net summary: Content analysis details: (-4.4 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Theodore Tso wrote: > On Thu, May 15, 2008 at 01:01:36PM -0700, Chris Peterson wrote: >> Please correct me if I'm wrong, but this thread's conclusions seem to be: >> >> * network interrupts are an inappropriate source of entropy (see my patch) >> * headless servers need entropy, but should seek a better solution, >> such as EGD, hardware RNG, or other kernel entropy sources (but that >> is a separate task) >> * TPM RNG is a separate task and, if implemented, should be in >> drivers/char/hw_random/ > > The TPM RNG task is probably best done in a user space process, which > might also do other things like pulling environmental noise from the > sound card's microphone, etc. > > The problem is finding someone with the skills, time, and energy to > create the appropriate user space daemon. All of the kernel > interfaces already exist; it's just matter of implementing the user > space support. rngd is already deployed in most distros, via rng-tools. Motivated people are welcome to steal maintainership from me... Jeff