linux-kernel - Re: [Bug #13666] WARNING: at mm/page_alloc.c:1743 __alloc_pages

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Date:	Mon, 29 Jun 2009 17:06:42 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Thomas Meyer <thomas@...3r.de>,
	"Rafael J. Wysocki" <rjw@...k.pl>, dccp@...r.kernel.org
Subject: Re: [Bug #13666] WARNING: at mm/page_alloc.c:1743
 __alloc_pages_nodemask

On Mon, 29 Jun 2009, Rafael J. Wysocki wrote:

> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.30.  Please verify if it still should be listed and let me know
> (either way).
> 
> 
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=13666
> Subject		: WARNING: at mm/page_alloc.c:1743 __alloc_pages_nodemask
> Submitter	: Thomas Meyer <thomas@...3r.de>
> Date		: 2009-06-27 16:15 (2 days old)
> References	: http://lkml.org/lkml/2009/6/27/75
> 

dccp_init() is trying to allocate a goal that causes the order in 
__get_free_pages() to be >= MAX_ORDER.  

Arnaldo, can we cap ehash_order and bhash_order at MAX_ORDER - 1?
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