From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f199.google.com (mail-pf0-f199.google.com [209.85.192.199]) by kanga.kvack.org (Postfix) with ESMTP id C76A86B0253 for ; Wed, 3 Aug 2016 01:20:35 -0400 (EDT) Received: by mail-pf0-f199.google.com with SMTP id 63so377224234pfx.0 for ; Tue, 02 Aug 2016 22:20:35 -0700 (PDT) Received: from mail-pa0-x242.google.com (mail-pa0-x242.google.com. [2607:f8b0:400e:c03::242]) by mx.google.com with ESMTPS id l78si6929281pfj.253.2016.08.02.22.20.35 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 02 Aug 2016 22:20:35 -0700 (PDT) Received: by mail-pa0-x242.google.com with SMTP id cf3so13262913pad.2 for ; Tue, 02 Aug 2016 22:20:35 -0700 (PDT) Message-ID: <1470201642.5034.3.camel@gmail.com> Subject: Re: [PATCH 2/2] fadump: Disable deferred page struct initialisation From: Balbir Singh Date: Wed, 03 Aug 2016 15:20:42 +1000 In-Reply-To: <1470143947-24443-3-git-send-email-srikar@linux.vnet.ibm.com> References: <1470143947-24443-1-git-send-email-srikar@linux.vnet.ibm.com> <1470143947-24443-3-git-send-email-srikar@linux.vnet.ibm.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org List-ID: To: Srikar Dronamraju , linux-mm@kvack.org, Mel Gorman , Vlastimil Babka , Michal Hocko , Andrew Morton , Michael Ellerman , linuxppc-dev@lists.ozlabs.org On Tue, 2016-08-02 at 18:49 +0530, Srikar Dronamraju wrote: > Fadump kernel reserves significant number of memory blocks. On a multi-node > machine, with CONFIG_DEFFERRED_STRUCT_PAGE support, fadump kernel fails to > boot. Fix this by disabling deferred page struct initialisation. >A How much memory does a fadump kernel need? Can we bump up the limits depending on the config. I presume when you say fadump kernel you mean kernel with FADUMP in the config? BTW, I would much rather prefer a config based solution that does not select DEFERRED_INIT if FADUMP is enabled. Balbir -- 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