From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759638AbZE1M5m (ORCPT ); Thu, 28 May 2009 08:57:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754636AbZE1M5e (ORCPT ); Thu, 28 May 2009 08:57:34 -0400 Received: from oblivion.subreption.com ([66.240.236.22]:52100 "EHLO mail.subreption.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754103AbZE1M5e (ORCPT ); Thu, 28 May 2009 08:57:34 -0400 Date: Thu, 28 May 2009 05:55:38 -0700 From: "Larry H." To: Pavel Machek Cc: linux-kernel@vger.kernel.org, Linus Torvalds , linux-mm@kvack.org, Ingo Molnar Subject: Re: [patch 0/5] Support for sanitization flag in low-level page allocator Message-ID: <20090528125537.GD29711@oblivion.subreption.com> References: <20090520183045.GB10547@oblivion.subreption.com> <20090528124840.GB1421@ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090528124840.GB1421@ucw.cz> Organization: Subreption LLC Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Pavel, > This should not be configurable. Runtime config, defaulting to > 'sanitize' may make some sense, but... better just be secure. We've since moved to an unconditional page sanitization approach, enabled via boot option. Check out the latest patches in the thread, don't bother checking the initial page flag ones since there's no intention to follow that path for now. Thanks for taking a look. Larry From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with ESMTP id 88CB06B005A for ; Thu, 28 May 2009 08:56:43 -0400 (EDT) Date: Thu, 28 May 2009 05:55:38 -0700 From: "Larry H." Subject: Re: [patch 0/5] Support for sanitization flag in low-level page allocator Message-ID: <20090528125537.GD29711@oblivion.subreption.com> References: <20090520183045.GB10547@oblivion.subreption.com> <20090528124840.GB1421@ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090528124840.GB1421@ucw.cz> Sender: owner-linux-mm@kvack.org To: Pavel Machek Cc: linux-kernel@vger.kernel.org, Linus Torvalds , linux-mm@kvack.org, Ingo Molnar List-ID: Hi Pavel, > This should not be configurable. Runtime config, defaulting to > 'sanitize' may make some sense, but... better just be secure. We've since moved to an unconditional page sanitization approach, enabled via boot option. Check out the latest patches in the thread, don't bother checking the initial page flag ones since there's no intention to follow that path for now. Thanks for taking a look. Larry -- 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