Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261237AbVBVUcY (ORCPT ); Tue, 22 Feb 2005 15:32:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261235AbVBVUcX (ORCPT ); Tue, 22 Feb 2005 15:32:23 -0500 Received: from mta11.adelphia.net ([68.168.78.205]:46552 "EHLO mta11.adelphia.net") by vger.kernel.org with ESMTP id S261234AbVBVUcC (ORCPT ); Tue, 22 Feb 2005 15:32:02 -0500 Message-ID: <421B963F.7000204@nodivisions.com> Date: Tue, 22 Feb 2005 15:29:51 -0500 From: Anthony DiSante User-Agent: Mozilla Thunderbird 0.9 (X11/20041103) X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel Subject: Re: uninterruptible sleep lockups References: <421A3414.2020508@nodivisions.com> <200502211945.j1LJjgbZ029643@turing-police.cc.vt.edu> <421A4375.9040108@nodivisions.com> <421B12DB.70603@aitel.hist.no> <421B14A8.3000501@nodivisions.com> <421B9018.7020007@nodivisions.com> <421B9309.6080503@nortel.com> In-Reply-To: <421B9309.6080503@nortel.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1578 Lines: 38 Chris Friesen wrote: >>> There has been some discussion that these hung >>> states could be "fixed", but that's absolutely >>> positively incorrect. >> >> That's one of the things I asked a few messages ago. Some people on >> the list were saying that it'd be "really hard" and would "require a >> lot of bookkeeping" to "fix" permanently-D-stated processes... which >> is completely different than "impossible." > > > Nothing is "impossible". Maybe where you live, but in my world some things are most certainly impossible. Getting a 1MHz CPU to run at 1THz is impossible. Having the kernel automatically install the latest firmware for a buggy device, without actually having the new firmware file, is impossible. Turning your 17" LCD monitor into a 50" HDTV is impossible. > Cracking SHA-256 isn't "impossible", it just > takes more computing power than exists on the face of the planet. Thanks for proving my point. That's a perfect example of the difference between "hard" and "impossible." > Call it "infeasable" if you like. It's theoretically possible, but the > amount of work and the overhead involved just are not realistic. Again, that was one of my earlier questions, since some people here were saying "impossible" while other were saying "really hard." -Anthony DiSante http://nodivisions.com/ - 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/