From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754025AbbCKNjn (ORCPT ); Wed, 11 Mar 2015 09:39:43 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:21318 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752940AbbCKNjk (ORCPT ); Wed, 11 Mar 2015 09:39:40 -0400 Message-ID: <55004595.7020304@oracle.com> Date: Wed, 11 Mar 2015 09:39:33 -0400 From: Sasha Levin User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: Steven Rostedt CC: LKML , linux-mm@kvack.org, netdev@vger.kernel.org, linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-crypto@vger.kernel.org Subject: Re: [PATCH] mm: kill kmemcheck References: <1426074547-21888-1-git-send-email-sasha.levin@oracle.com> <20150311081909.552e2052@grimm.local.home> <55003666.3020100@oracle.com> <20150311084034.04ce6801@grimm.local.home> In-Reply-To: <20150311084034.04ce6801@grimm.local.home> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Source-IP: ucsinet22.oracle.com [156.151.31.94] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/11/2015 08:40 AM, Steven Rostedt wrote: > On Wed, 11 Mar 2015 08:34:46 -0400 > Sasha Levin wrote: > >> > Fair enough. We knew there are existing kmemcheck users, but KASan should be >> > superior both in performance and the scope of bugs it finds. It also shouldn't >> > impose new limitations beyond requiring gcc 4.9.2+. >> > > Ouch! OK, then I can't use it. I'm currently compiling with gcc 4.6.3. > > It will be a while before I upgrade my build farm to something newer. Are you actually compiling new kernels with 4.6.3, or are you using older kernels as well? There's no real hurry to kill kmemcheck right now, but we do want to stop supporting that in favour of KASan. Thanks, Sasha