From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964887AbWFNFqN (ORCPT ); Wed, 14 Jun 2006 01:46:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964891AbWFNFqN (ORCPT ); Wed, 14 Jun 2006 01:46:13 -0400 Received: from mx2.suse.de ([195.135.220.15]:9412 "EHLO mx2.suse.de") by vger.kernel.org with ESMTP id S964887AbWFNFqM (ORCPT ); Wed, 14 Jun 2006 01:46:12 -0400 To: Ingo Molnar Cc: Pekka J Enberg , linux-kernel@vger.kernel.org, catalin.marinas@gmail.com Subject: Re: [PATCH 2.6.17-rc6 7/9] Remove some of the kmemleak false positives References: <20060611112156.8641.94787.stgit@localhost.localdomain> <84144f020606112219m445a3ccas7a95c7339ca5fa10@mail.gmail.com> <20060612105345.GA8418@elte.hu> <20060612192227.GA5497@elte.hu> <20060613072646.GA17978@elte.hu> <20060614040707.GA7503@elte.hu> From: Andi Kleen Date: 14 Jun 2006 07:46:02 +0200 In-Reply-To: <20060614040707.GA7503@elte.hu> Message-ID: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Ingo Molnar writes: > But it's not just about the amount of false negatives, but also about > the overhead of scanning. You are concentrated on embedded systems with > small RAM - but most of the testers will be running this with at last > 1GB of RAM - which is _alot_ of memory to scan. Most of this should be normally in page cache which doesn't need to be scanned? There might be some extreme loads with a lot more kernel data, but they are probably rare. -Andi 7