From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx114.postini.com [74.125.245.114]) by kanga.kvack.org (Postfix) with SMTP id E6DF56B0078 for ; Thu, 14 Jun 2012 17:21:36 -0400 (EDT) Message-ID: <4FDA55A6.2030706@redhat.com> Date: Thu, 14 Jun 2012 17:20:38 -0400 From: Rik van Riel MIME-Version: 1.0 Subject: Re: bugs in page colouring code References: <20120613152936.363396d5@cuia.bos.redhat.com> <20120614103627.GA25940@aftab.osrc.amd.com> <4FD9DFCE.1070609@redhat.com> <4FDA5087.7090606@linux.intel.com> <4FDA519F.4080204@redhat.com> <4FDA5413.9080400@linux.intel.com> In-Reply-To: <4FDA5413.9080400@linux.intel.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: "H. Peter Anvin" Cc: Borislav Petkov , linux-mm@kvack.org, linux-kernel@vger.kernel.org, akpm@linux-foundation.org, sjhill@mips.com, ralf@linux-mips.org, Rob Herring , Russell King , Nicolas Pitre On 06/14/2012 05:13 PM, H. Peter Anvin wrote: > I am much more skeptical to disabling page coloring in the !PF_RANDOMIZE > case when no address hint is proposed. I would like to at least try > running without it, perhaps with a chicken bit in a sysctl. Agreed, it is hard to imagine a program that passes address 0 to mmap, yet breaks when it gets a coloured page address back... I'll leave that bit of code untouched for now, we can play with it later. -- 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