Re: [Bug #13666] WARNING: at mm/page_alloc.c:1743 __alloc_pages_nodemask

[David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>]

From: David Rientjes <rientjes-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
Date: Mon, 29 Jun 2009 17:06:42 -0700 (PDT)

> 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-VsYtu1Qij5c@public.gmane.org>
>> 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?

There was a patch going arond for this already.