Date: Sat, 11 Nov 2006 09:08:51 +0900
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Cc: clameter@sgi.com, hch@lst.de, davem@davemloft.net,
       linux-kernel@vger.kernel.org, netdev@oss.sgi.com, linux-mm@kvack.org
Subject: Re: [PATCH 2/3] add dev_to_node()
Message-Id: <20061111090851.73d4d3b6.kamezawa.hiroyu@jp.fujitsu.com>
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On Fri, 10 Nov 2006 13:28:25 -0500
Lee Schermerhorn <Lee.Schermerhorn@hp.com> wrote:

> On Fri, 2006-11-10 at 10:16 -0800, Christoph Lameter wrote:
> > On Wed, 8 Nov 2006, KAMEZAWA Hiroyuki wrote:
> > 
> > > I wonder there are no code for creating NODE_DATA() for device-only-node.
> > 
> > On IA64 we remap nodes with no memory / cpus to the nearest node with 
> > memory. I think that is sufficient.
> 
> I don't think this happens anymore.  

In my understanding , from drivers/acpi/numa.c, 
a node is created by a pxm found in SRAT table at boot time.

the node-number for the pxm which was not found in SRAT at boot time is "-1".
please check how acpi_map_pxm_to_node() is used.

If pci's node-id is based on pxm, checking return vaule of pxm_to_node() 
will be good.

-Kame

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