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Date: Thu, 20 Feb 2014 10:05:39 -0600 (CST)
From: Christoph Lameter <cl@linux.com>
To: Nishanth Aravamudan <nacc@linux.vnet.ibm.com>
Subject: Re: [PATCH 1/3] mm: return NUMA_NO_NODE in local_memory_node if
 zonelists are not setup
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Cc: Michal Hocko <mhocko@suse.cz>, linux-mm@kvack.org,
 Mel Gorman <mgorman@suse.de>, David Rientjes <rientjes@google.com>,
 Joonsoo Kim <iamjoonsoo.kim@lge.com>, linuxppc-dev@lists.ozlabs.org,
 Anton Blanchard <anton@samba.org>
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On Wed, 19 Feb 2014, Nishanth Aravamudan wrote:

> We can call local_memory_node() before the zonelists are setup. In that
> case, first_zones_zonelist() will not set zone and the reference to
> zone->node will Oops. Catch this case, and, since we presumably running
> very early, just return that any node will do.

Really? Isnt there some way to avoid this call if zonelists are not setup
yet?