From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail203.messagelabs.com (mail203.messagelabs.com [216.82.254.243]) by kanga.kvack.org (Postfix) with SMTP id 53F416B00D4 for ; Sat, 30 May 2009 10:48:38 -0400 (EDT) Message-ID: <4A214752.7000303@redhat.com> Date: Sat, 30 May 2009 10:48:50 -0400 From: Rik van Riel MIME-Version: 1.0 Subject: Re: [patch 0/5] Support for sanitization flag in low-level page allocator References: <20090522073436.GA3612@elte.hu> <20090530054856.GG29711@oblivion.subreption.com> <1243679973.6645.131.camel@laptop> <4A211BA8.8585.17B52182@pageexec.freemail.hu> <1243689707.6645.134.camel@laptop> <20090530153023.45600fd2@lxorguk.ukuu.org.uk> <1243694737.6645.142.camel@laptop> In-Reply-To: <1243694737.6645.142.camel@laptop> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Peter Zijlstra Cc: Alan Cox , pageexec@freemail.hu, "Larry H." , Arjan van de Ven , Ingo Molnar , linux-kernel@vger.kernel.org, Linus Torvalds , linux-mm@kvack.org, Ingo Molnar List-ID: Peter Zijlstra wrote: > On Sat, 2009-05-30 at 15:30 +0100, Alan Cox wrote: >>> Right, so the whole point is to minimize the impact of actual bugs, >>> right? So why not focus on fixing those actual bugs? Can we create tools >>> to help us find such bugs faster? We use sparse for a lot of static >>> checking, we create things like lockdep and kmemcheck to dynamically >>> find trouble. >>> >>> Can we instead of working around a problem, fix the actual problem? >> Why do cars have crashworthiness and seatbelts ? Why not fix the actual >> problem (driving errors) ? I mean lets face it they make the vehicle >> heavier, less fuel efficient, less fun and more annoying to use. > > We can't find every crash bug either, yet we still ship the kernel and > people actually use it too. > > What makes these security bugs so much more important than all the other > ones? The fact that we can do something about them. -- All rights reversed. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org