From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f51.google.com (mail-pa0-f51.google.com [209.85.220.51]) by kanga.kvack.org (Postfix) with ESMTP id 738B06B009D for ; Mon, 18 May 2015 13:42:45 -0400 (EDT) Received: by pacwv17 with SMTP id wv17so160791863pac.2 for ; Mon, 18 May 2015 10:42:45 -0700 (PDT) Received: from mga14.intel.com (mga14.intel.com. [192.55.52.115]) by mx.google.com with ESMTP id tz6si16952702pab.216.2015.05.18.10.42.44 for ; Mon, 18 May 2015 10:42:44 -0700 (PDT) From: "Luck, Tony" Subject: RE: [RFC 0/3] Mirrored memory support for boot time allocations Date: Mon, 18 May 2015 17:42:42 +0000 Message-ID: <3908561D78D1C84285E8C5FCA982C28F32A86CBC@ORSMSX114.amr.corp.intel.com> References: <55599BAA.20204@huawei.com> In-Reply-To: <55599BAA.20204@huawei.com> Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: Xishi Qiu Cc: Andrew Morton , "linux-kernel@vger.kernel.org" , Xiexiuqi , Linux MM > Is it means that you will create a new zone to fill mirrored memory, like= the > movable zone, right?=20 That's my general plan. > I think this will change a lot of code, why not create a new migrate type= ? > such as CMA, e.g. MIGRATE_MIRROR I'm still exploring options ... the idea is to use mirrored memory for kern= el allocations (because our machine check recovery code will always crash the system for e= rrors in kernel memory - while we can avoid the crash for errors in application m= emory). I'm not familiar with CMA ... can you explain a bit how it might let me dir= ect kernel allocations to specific areas of memory? -Tony -- 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