From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-f177.google.com (mail-ig0-f177.google.com [209.85.213.177]) by kanga.kvack.org (Postfix) with ESMTP id 2DA066B0038 for ; Thu, 22 Oct 2015 21:44:33 -0400 (EDT) Received: by igbkq10 with SMTP id kq10so26008772igb.0 for ; Thu, 22 Oct 2015 18:44:33 -0700 (PDT) Received: from mga09.intel.com (mga09.intel.com. [134.134.136.24]) by mx.google.com with ESMTP id lp5si1239011igb.77.2015.10.22.18.44.32 for ; Thu, 22 Oct 2015 18:44:32 -0700 (PDT) From: "Luck, Tony" Subject: Re: [PATCH] mm: Introduce kernelcore=reliable option Date: Fri, 23 Oct 2015 01:44:31 +0000 Message-ID: <322B7BFA-08FE-4A8F-B54C-86901BDB7CBD@intel.com> References: <1444915942-15281-1-git-send-email-izumi.taku@jp.fujitsu.com> <3908561D78D1C84285E8C5FCA982C28F32B5A060@ORSMSX114.amr.corp.intel.com> <5628B427.3050403@jp.fujitsu.com> <3908561D78D1C84285E8C5FCA982C28F32B5C7AE@ORSMSX114.amr.corp.intel.com>, In-Reply-To: Content-Language: en-US Content-Type: text/plain; charset="iso-2022-jp" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: "Izumi, Taku" Cc: "Kamezawa, Hiroyuki" , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "qiuxishi@huawei.com" , "mel@csn.ul.ie" , "akpm@linux-foundation.org" , "Hansen, Dave" , "matt@codeblueprint.co.uk" First part of each memory controller. I have two memory controllers on each= node Sent from my iPhone > On Oct 22, 2015, at 18:01, Izumi, Taku wrote: >=20 > Dear Tony, >=20 >> -----Original Message----- >> From: Luck, Tony [mailto:tony.luck@intel.com] >> Sent: Friday, October 23, 2015 8:27 AM >> To: Kamezawa, Hiroyuki/=1B$B55_7=1B(B =1B$B42G7=1B(B; Izumi, Taku/=1B$B@= t=1B(B =1B$BBs=1B(B; linux-kernel@vger.kernel.org; linux-mm@kvack.org >> Cc: qiuxishi@huawei.com; mel@csn.ul.ie; akpm@linux-foundation.org; Hanse= n, Dave; matt@codeblueprint.co.uk >> Subject: RE: [PATCH] mm: Introduce kernelcore=3Dreliable option >>=20 >>> I think /proc/zoneinfo can show detailed numbers per zone. Do we need s= ome for meminfo ? >>=20 >> I wrote a little script (attached) to summarize /proc/zoneinfo ... on my= system it says >>=20 >> $ zoneinfo >> Node Normal Movable DMA DMA32 >> 0 0.00 103020.07 8.94 1554.46 >> 1 9284.54 89870.43 >> 2 9626.33 94050.09 >> 3 9602.82 93650.04 >>=20 >> Not sure why I have zero Normal memory free on node0. The sum of all th= ose >> free counts is 410667.72 MB ... which is close enough to the boot time m= essage >> showing the amount of mirror/total memory: >>=20 >> [ 0.000000] efi: Memory: 80979/420096M mirrored memory >>=20 >> but a fair amount of the 80G of mirrored memory seems to have been misco= unted >> as Movable instead of Normal. Perhaps this is because I have two blocks = of mirrored >> memory on each node and the movable zone code doesn't expect that? >=20 > You were saying that OS view of memory of node is something like the foll= owing ? >=20 > Node X: |MMMMMM------MMMMMM--------| =20 > (legend) M: mirrored -: not mirrrored >=20 > If so, is this a real Box's configuration? > Sorry, I haven't got a real Address Range Mirror capable boxes yet ... > I thought mirroring range is concatenated at the first part of each node. >=20 > Sincerely, > Taku Izumi >=20 -- 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