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Date: Fri, 29 Jul 2005 13:05:58 -0700
From: Andrew Morton <akpm@osdl.org>
To: "Martin J. Bligh" <mbligh@mbligh.org>
Cc: linux-kernel@vger.kernel.org, colpatch@us.ibm.com
Subject: Re: [PATCH] Fix NUMA node sizing in nr_free_zone_pages
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"Martin J. Bligh" <mbligh@mbligh.org> wrote:
>
>  We are iterating over all nodes in nr_free_zone_pages(). Because the 
>  fallback zonelists contain all nodes in the system, and we walk all
>  the zonelists, we're counting memory multiple times (once for each
>  node). This caused us to make a size estimate of 32GB for an 8GB
>  AMD64 box, which makes all the dirty ratio calculations, etc incorrect.

Thanks, Martin.

Just for reference: this patch addresses the "Memory pressure handling with
iSCSI" problems which Badari Pulavarty reported.