From mboxrd@z Thu Jan 1 00:00:00 1970 From: Glen Turner Subject: Re: [PATCH] Re: [PATCH] drivers/net: remove network drivers' last few uses of IRQF_SAMPLE_RANDOM Date: Mon, 26 May 2008 00:56:42 +0930 Message-ID: <1211729202.5913.81.camel@andromache> References: <87abirytxj.fsf@basil.nowhere.org> <20080516105635.6cb1f505@core> <482D5FC5.2070103@firstfloor.org> <20080516121239.GA9627@gondor.apana.org.au> <482DB568.1040704@firstfloor.org> <20080517010136.GA15102@gondor.apana.org.au> <482EBAA8.3040506@firstfloor.org> <20080517130535.02d45372@infradead.org> <4830014F.9040800@firstfloor.org> <20080518112657.GK16496@mit.edu> <48306D36.6040706@firstfloor.org> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: Theodore Tso , Arjan van de Ven , Chris Peterson , Herbert Xu , Alan Cox , Jeff Garzik , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Andrew Morton , "Brandeburg, Jesse" , tpmdd-devel@lists.sourceforge.net, tpm@selhorst.net To: Andi Kleen Return-path: Received: from eth6445.sa.adsl.internode.on.net ([150.101.30.44]:45487 "EHLO aix.gdt.id.au" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752972AbYEYP3L (ORCPT ); Sun, 25 May 2008 11:29:11 -0400 In-Reply-To: <48306D36.6040706@firstfloor.org> Sender: netdev-owner@vger.kernel.org List-ID: On Sun, 2008-05-18 at 19:53 +0200, Andi Kleen wrote: > I never quite understood the rationale behind that one either: > if you worry about someone else controlling the timing of these events, > why do you not worry about timings on the local system. e.g. > it's not that hard to predict with similar accuracy when a hard disk > interrupt happened when a local process read something from disk. Or > when the keyboard/USB interrupt happened when you process keyboard input. Accepting packets requires you to trust another party -- the network provider and users of your host's networked services -- which you do not have to trust otherwise.