From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f175.google.com (mail-wi0-f175.google.com [209.85.212.175]) by kanga.kvack.org (Postfix) with ESMTP id 8816E6B0032 for ; Mon, 8 Jun 2015 12:36:24 -0400 (EDT) Received: by wibdq8 with SMTP id dq8so91528745wib.1 for ; Mon, 08 Jun 2015 09:36:24 -0700 (PDT) Received: from mail-wi0-f171.google.com (mail-wi0-f171.google.com. [209.85.212.171]) by mx.google.com with ESMTPS id d4si2282494wie.32.2015.06.08.09.36.22 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 08 Jun 2015 09:36:22 -0700 (PDT) Received: by wiga1 with SMTP id a1so92591491wig.0 for ; Mon, 08 Jun 2015 09:36:22 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <3908561D78D1C84285E8C5FCA982C28F32A8E39B@ORSMSX114.amr.corp.intel.com> References: <55704A7E.5030507@huawei.com> <55704B0C.1000308@huawei.com> <3908561D78D1C84285E8C5FCA982C28F32A8E39B@ORSMSX114.amr.corp.intel.com> From: Leon Romanovsky Date: Mon, 8 Jun 2015 19:36:01 +0300 Message-ID: Subject: Re: [RFC PATCH 01/12] mm: add a new config to manage the code Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Sender: owner-linux-mm@kvack.org List-ID: To: "Luck, Tony" Cc: Xishi Qiu , Andrew Morton , "nao.horiguchi@gmail.com" , Yinghai Lu , "H. Peter Anvin" , Thomas Gleixner , "mingo@elte.hu" , Xiexiuqi , Hanjun Guo , Linux MM , LKML On Mon, Jun 8, 2015 at 6:14 PM, Luck, Tony wrote: >> > +config MEMORY_MIRROR >> > + bool "Address range mirroring support" >> > + depends on X86 && NUMA >> > + default y >> Is it correct for the systems (NOT xeon) without memory support built in= ? > > Is the "&& NUMA" doing that? If you support NUMA, then you are not a min= imal > config for a tablet or laptop. > > If you want a symbol that has a stronger correlation to high end Xeon fea= tures > then perhaps MEMORY_FAILURE? I would like to see the default set to be "n". On my machine (x86_64) defconfig enables this feature and I don't know if this feature can work there. =E2=9E=9C linux-mm git:(dev) =E2=9C=97 make defconfig ARCH=3Dx86 HOSTCC scripts/basic/fixdep HOSTCC scripts/basic/bin2c HOSTCC scripts/kconfig/conf.o HOSTCC scripts/kconfig/zconf.tab.o HOSTLD scripts/kconfig/conf *** Default configuration is based on 'x86_64_defconfig' # # configuration written to .config # =E2=9E=9C linux-mm git:(dev) =E2=9C=97 grep CONFIG_MEMORY_MIRROR .config CONFIG_MEMORY_MIRROR=3Dy > > -Tony --=20 Leon Romanovsky | Independent Linux Consultant www.leon.nu | leon@leon.nu -- 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