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From: Christoph Lameter <cl@linux-foundation.org>
To: Dan Williams <dan.j.williams@intel.com>
Cc: Mel Gorman <mel@csn.ul.ie>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andy Whitcroft <apw@shadowen.org>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	NeilBrown <neilb@suse.de>,
	babydr@baby-dragons.com, lee.schermerhorn@hp.com,
	a.beregalov@gmail.com, akpm@linux-foundation.org
Subject: Re: [problem] raid performance loss with 2.6.26-rc8 on 32-bit x86 (bisected)
Date: Thu, 03 Jul 2008 08:37:39 -0500	[thread overview]
Message-ID: <486CD623.8030906@linux-foundation.org> (raw)
In-Reply-To: <1215064455.15797.4.camel@dwillia2-linux.ch.intel.com>

What a convoluted description. Simply put: We clobber the nr_zones field
because we write beyond the bounds of the node_zonelists[] array in
struct pglist_data.

WARNING: multiple messages have this Message-ID (diff)
From: Christoph Lameter <cl@linux-foundation.org>
To: Dan Williams <dan.j.williams@intel.com>
Cc: Mel Gorman <mel@csn.ul.ie>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andy Whitcroft <apw@shadowen.org>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	NeilBrown <neilb@suse.de>,
	babydr@baby-dragons.com, lee.schermerhorn@hp.com,
	a.beregalov@gmail.com, akpm@linux-foundation.org
Subject: Re: [problem] raid performance loss with 2.6.26-rc8 on 32-bit x86 (bisected)
Date: Thu, 03 Jul 2008 08:37:39 -0500	[thread overview]
Message-ID: <486CD623.8030906@linux-foundation.org> (raw)
In-Reply-To: <1215064455.15797.4.camel@dwillia2-linux.ch.intel.com>

What a convoluted description. Simply put: We clobber the nr_zones field
because we write beyond the bounds of the node_zonelists[] array in
struct pglist_data.

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  reply	other threads:[~2008-07-03 13:39 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-01  1:57 [problem] raid performance loss with 2.6.26-rc8 on 32-bit x86 (bisected) Dan Williams
2008-07-01  8:09 ` Mel Gorman
2008-07-01  8:09   ` Mel Gorman
2008-07-01 17:58   ` Andy Whitcroft
2008-07-01 17:58     ` Andy Whitcroft
2008-07-01 19:07     ` Mel Gorman
2008-07-01 19:07       ` Mel Gorman
2008-07-01 20:29       ` Dan Williams
2008-07-01 20:29         ` Dan Williams
2008-07-02  5:18         ` Mel Gorman
2008-07-02  5:18           ` Mel Gorman
2008-07-03  1:49           ` Dan Williams
2008-07-03  1:49             ` Dan Williams
2008-07-03  4:27             ` Mel Gorman
2008-07-03  4:27               ` Mel Gorman
2008-07-03  4:43               ` Linus Torvalds
2008-07-03  4:43                 ` Linus Torvalds
2008-07-03  5:00                 ` Mel Gorman
2008-07-03  5:00                   ` Mel Gorman
2008-07-03  5:54                   ` Dan Williams
2008-07-03  5:54                     ` Dan Williams
2008-07-03 13:37                     ` Christoph Lameter [this message]
2008-07-03 13:37                       ` Christoph Lameter
2008-07-03 16:36                       ` [PATCH] Do not clobber pgdat->nr_zones during memory initialisation Mel Gorman
2008-07-03 16:36                         ` Mel Gorman
2008-07-03 16:44                         ` Linus Torvalds
2008-07-03 16:44                           ` Linus Torvalds
2008-07-03 16:46                           ` Linus Torvalds
2008-07-03 16:46                             ` Linus Torvalds
2008-07-03 17:16                           ` Mel Gorman
2008-07-03 17:16                             ` Mel Gorman
2008-07-03 16:38                     ` [problem] raid performance loss with 2.6.26-rc8 on 32-bit x86 (bisected) Mel Gorman
2008-07-03 16:38                       ` Mel Gorman
2008-07-01 22:28       ` Dan Williams
2008-07-01 22:28         ` Dan Williams

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