linux-kernel - Re: [PATCH] Fix boot problem in situations where the boot CPU is running on a memoryless node

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Message-ID: <Pine.LNX.4.64.0801231035470.11430@schroedinger.engr.sgi.com>
Date:	Wed, 23 Jan 2008 10:36:25 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Pekka J Enberg <penberg@...helsinki.fi>
cc:	Mel Gorman <mel@....ul.ie>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
	hanth Aravamudan <nacc@...ibm.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	lee.schermerhorn@...com, Linux MM <linux-mm@...ck.org>,
	Olaf Hering <olaf@...fle.de>
Subject: Re: [PATCH] Fix boot problem in situations where the boot CPU is
 running on a memoryless node

On Wed, 23 Jan 2008, Pekka J Enberg wrote:

> Furthermore, don't let kmem_getpages() call alloc_pages_node() if nodeid passed
> to it is -1 as the latter will always translate that to numa_node_id() which
> might not have ->nodelist that caused the invocation of fallback_alloc() in the
> first place (for example, during bootstrap).

kmem_getpages is called without GFP_THISNODE. This 
alloc_pages_node(numa_node_id(), ...) will fall back to the next node with 
memory.

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