Date: Thu, 3 Feb 2005 17:16:38 -0800
From: Andrew Morton <akpm@osdl.org>
To: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: terje_fb@yahoo.no, linux-kernel@vger.kernel.org, torvalds@osdl.org
Subject: Re: 2.6.10: kswapd spins like crazy
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Nick Piggin <nickpiggin@yahoo.com.au> wrote:
>
> Oh, attached should be a minimal fix if you would like to try it out.
> 
> 
> ...
> --- linux-2.6/mm/vmscan.c~vmscan-minfix	2005-02-04 11:52:37.000000000 +1100
> +++ linux-2.6-npiggin/mm/vmscan.c	2005-02-04 11:53:32.000000000 +1100
> @@ -575,6 +575,7 @@ static void shrink_cache(struct zone *zo
>  			nr_taken++;
>  		}
>  		zone->nr_inactive -= nr_taken;
> +		zone->pages_scanned += nr_scan;
>  		spin_unlock_irq(&zone->lru_lock);
>  
>  		if (nr_taken == 0)
> 

Any theories as to why these pages aren't being activated and aren't being
reclaimed?

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