linux-kernel - Re: VM/VFS bug with large amount of memory and file systems?

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Message-Id: <20070915035228.8b8a7d6d.akpm@linux-foundation.org>
Date:	Sat, 15 Sep 2007 03:52:28 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Anton Altaparmakov <aia21@....ac.uk>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Memory Management List <linux-mm@...ck.org>,
	marc.smith@...ail.mcc.edu
Subject: Re: VM/VFS bug with large amount of memory and file systems?

On Sat, 15 Sep 2007 12:08:17 +0200 Peter Zijlstra <peterz@...radead.org> wrote:

> On Sat, 2007-09-15 at 08:27 +0100, Anton Altaparmakov wrote:
> 
> Please, don't word wrap log-files, they're hard enough to read without
> it :-(
> 
> ( I see people do this more and more often, *WHY*? is that because we
> like 80 char lines, in code and email? )

Isn't it?

> 
> Anyway, looks like all of zone_normal is pinned in kernel allocations:
> 
> > Sep 13 15:31:25 escabot Normal free:3648kB min:3744kB low:4680kB high: 5616kB active:0kB inactive:3160kB present:894080kB pages_scanned:5336 all_unreclaimable? yes
> 
> Out of the 870 odd mb only 3 is on the lru.
> 
> Would be grand it you could have a look at slabinfo and the like.

Definitely.

> > Sep 13 15:31:25 escabot free:1090395 slab:198893 mapped:988  
> > pagetables:129 bounce:0

814,665,728 bytes of slab.
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