From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx111.postini.com [74.125.245.111]) by kanga.kvack.org (Postfix) with SMTP id EC7306B0008 for ; Wed, 30 Jan 2013 03:50:29 -0500 (EST) Received: by mail-pb0-f53.google.com with SMTP id un1so838232pbc.26 for ; Wed, 30 Jan 2013 00:50:29 -0800 (PST) Date: Wed, 30 Jan 2013 00:50:26 -0800 (PST) From: David Rientjes Subject: Re: [PATCH Bug fix] acpi, movablemem_map: node0 should always be unhotpluggable when using SRAT. In-Reply-To: <1359532470-28874-1-git-send-email-tangchen@cn.fujitsu.com> Message-ID: References: <1359532470-28874-1-git-send-email-tangchen@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Tang Chen Cc: akpm@linux-foundation.org, jiang.liu@huawei.com, wujianguo@huawei.com, hpa@zytor.com, wency@cn.fujitsu.com, laijs@cn.fujitsu.com, linfeng@cn.fujitsu.com, yinghai@kernel.org, isimatu.yasuaki@jp.fujitsu.com, rob@landley.net, kosaki.motohiro@jp.fujitsu.com, minchan.kim@gmail.com, mgorman@suse.de, guz.fnst@cn.fujitsu.com, rusty@rustcorp.com.au, lliubbo@gmail.com, jaegeuk.hanse@gmail.com, tony.luck@intel.com, glommer@parallels.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org On Wed, 30 Jan 2013, Tang Chen wrote: > When using movablemem_map=acpi, always set node0 as unhotpluggable, otherwise > if all the memory is hotpluggable, the kernel will fail to boot. > > When using movablemem_map=nn[KMG]@ss[KMG], we don't stop users specifying > node0 as hotpluggable, and ignore all the info in SRAT, so that this option > can be used as a workaround of firmware bugs. > Could you elaborate on the failure you're seeing? I've booted the kernel many times without memory on a node 0. -- 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