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From: Mel Gorman <mel@csn.ul.ie>
To: Adam Litke <agl@us.ibm.com>
Cc: linux-mm <linux-mm@kvack.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	nacc <nacc@linux.vnet.ibm.com>, apw <apw@shadowen.org>,
	agl <agl@linux.vnet.ibm.com>
Subject: Re: [BUG] __GFP_THISNODE is not always honored
Date: Mon, 18 Aug 2008 20:57:43 +0100	[thread overview]
Message-ID: <20080818195743.GB22601@csn.ul.ie> (raw)
In-Reply-To: <1219083412.29323.36.camel@localhost.localdomain>

On (18/08/08 13:16), Adam Litke didst pronounce:
> <MUCH SNIPPAGE>
> mminit::memmap_init Initialising map node 0 zone 0 pfns 32768 -> 278528
> mminit::memmap_init Initialising map node 1 zone 0 pfns 0 -> 524288

This might be the problem here. This machine has overlapping nodes which
is a fairly rare situation. I think it's possible the page linkages for
node 0 are getting overwritten with their node 1 equivalents. If this is
happening, it would lead to some oddness.

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  reply	other threads:[~2008-08-18 19:57 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-15 22:01 Adam Litke
2008-08-18 10:59 ` Mel Gorman
2008-08-18 18:16   ` Adam Litke
2008-08-18 19:57     ` Mel Gorman [this message]
2008-08-18 19:14   ` Christoph Lameter
2008-08-18 19:21 ` Christoph Lameter
2008-08-18 19:52   ` Mel Gorman
2008-08-20 17:08 ` [BUG] Make setup_zone_migrate_reserve() aware of overlapping nodes Adam Litke
2008-08-20 18:11   ` Dave Hansen
2008-08-20 19:55     ` [BUG] [PATCH v2] " Adam Litke
2008-08-21 11:33       ` Mel Gorman
2008-08-26  9:29         ` Andy Whitcroft

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