Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261843AbVDOQGl (ORCPT ); Fri, 15 Apr 2005 12:06:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261846AbVDOQGl (ORCPT ); Fri, 15 Apr 2005 12:06:41 -0400 Received: from rproxy.gmail.com ([64.233.170.206]:12146 "EHLO rproxy.gmail.com") by vger.kernel.org with ESMTP id S261843AbVDOQGj convert rfc822-to-8bit (ORCPT ); Fri, 15 Apr 2005 12:06:39 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=ZhiIHcsAE92545lLcnCAW6JqzK17PzKeqRdqcTX9hTWVDeYxNhY4RdWD3mTngotQ1UFhW1s8fLiK4PCKrjqUpZkvqGCpZ7Gym+SV6MWeHH7EwY/0RAi6LztKlq5quURkPQI57ddiEMPH7De/kWeujwj4g5sMUoFQFSIgNKKRZto= Message-ID: <21d7e9970504150906e821374@mail.gmail.com> Date: Sat, 16 Apr 2005 02:06:38 +1000 From: Dave Airlie Reply-To: Dave Airlie To: Alan Cox Subject: Re: Exploit in 2.6 kernels Cc: Lennart Sorensen , Lars Marowsky-Bree , Helge Hafting , John M Collins , Linux Kernel Mailing List In-Reply-To: <1113577241.11155.21.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: <1113298455.16274.72.camel@caveman.xisl.com> <425BBDF9.9020903@ev-en.org> <1113318034.3105.46.camel@caveman.xisl.com> <20050412210857.GT11199@shell0.pdx.osdl.net> <1113341579.3105.63.camel@caveman.xisl.com> <425CEAC2.1050306@aitel.hist.no> <20050413125921.GN17865@csclub.uwaterloo.ca> <20050413130646.GF32354@marowsky-bree.de> <20050413132308.GP17865@csclub.uwaterloo.ca> <1113577241.11155.21.camel@localhost.localdomain> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1614 Lines: 33 On 4/16/05, Alan Cox wrote: > On Mer, 2005-04-13 at 14:23, Lennart Sorensen wrote: > > On Wed, Apr 13, 2005 at 03:06:46PM +0200, Lars Marowsky-Bree wrote: > > Graphics card companies don't realize they are hardware companies not > > software companies and that it is hardware they make their money from? > > Oh and they have too many lawyers? > > Actually they are both. 3D performance is a combination of clever driver > technology -and- clever hardware. Not to disagree too much, most of those "clever" driver technologies are dirty hacks that boost performance in the quake/doom3 type cases... but if they ever open sourced it those hardware review sites would be over them like a bad rash... I still don't think they would lose out by much.. I've just being trying to RE the ATI Mpeg2 IDCT/MC hardware, ATI know this, I know this, they are only wasting my time and my employers money (we still are going to buy their chips... no choice..) will they give out specs .. no .. why? cause of lawyers.. they use MPEG2 decoders for DVD decode and some lawyer told them this is a major secret despite the fact that everyone knows how to decode Mpeg2 and DVDs at this stage.. same story with VIA who persist on giving out a binary only blob for MPEG2 hardware despite the fact that it was RE'ed over two years ago.. the secret is out... Dave. - 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/