linux-kernel - Re: la la la la ... swappiness

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Message-ID: <45751F19.9010208@gmail.com>
Date:	Tue, 05 Dec 2006 08:26:17 +0100
From:	Rene Herman <rene.herman@...il.com>
To:	Nick Piggin <nickpiggin@...oo.com.au>
CC:	Aucoin@...ston.RR.com, 'Linus Torvalds' <torvalds@...l.org>,
	'Tim Schmielau' <tim@...sik3.uni-rostock.de>,
	'Andrew Morton' <akpm@...l.org>, linux-kernel@...r.kernel.org,
	clameter@....com
Subject: Re: la la la la ... swappiness

Nick Piggin wrote:

> Aucoin wrote:

>> Ummm, shm_open, ftruncate, mmap ? Is it a trick question ? The process
>> responsible for initially setting up the shared area doesn't stay 
>> resident.
> 
> The issue is that the shm pages should show up in the active and
> inactive lists. But they aren't, and you seem to have about 1542524K
> unacconted for. Weird.
> 
> Can you try getting the output of /proc/vmstat as well?

Haven't followed along on this thread, but couldn't help notice the 
ftruncate there and some similarity to a problem I once experienced 
myself. Is ext3 involved? If so, maybe:

http://mail.nl.linux.org/linux-mm/2002-11/msg00110.html

is still or again being annoying?

Rene.

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