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Date:	Wed, 24 Oct 2007 19:15:33 -0700 (PDT)
From:	Christoph Lameter <>
To:	Alexey Dobriyan <>
cc:	Mel Gorman <>, Pekka Enberg <>,,
Subject: Re: SLUB 0:1 SLAB (OOM during massive parallel kernel builds)

On Wed, 24 Oct 2007, Alexey Dobriyan wrote:

> [12728.701398] DMA free:8032kB min:32kB low:40kB high:48kB active:2716kB 
> inactive:2208kB present:12744kB pages_scanned:9299 all_unreclaimable? 
> yes [12728.701567] lowmem_reserve[]: 0 2003 2003 2003 [12728.701654] 

Ummm... all unreclaimable is set! Are you mlocking the pages in memory? Or 
what causes this? All pages under writeback? What is the dirty ratio set 

> pages_scanned:9363 all_unreclaimable? yes [12735.178618] 

And again.

> lowmem_reserve[]: 0 2003 2003 2003 [12735.178706] DMA32 free:5700kB 
> min:5708kB low:7132kB high:8560kB active:512264kB inactive:1304912kB 
> present:2051880kB pages_scanned:3251584 all_unreclaimable? yes 

And again.

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