Date: Thu, 16 Sep 2004 07:56:51 +0200
From: Jens Axboe <axboe@suse.de>
To: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: "Jeff V. Merkey" <jmerkey@drdos.com>, jmerkey@galt.devicelogics.com,
       linux-kernel@vger.kernel.org, jmerkey@comcast.net
Subject: Re: 2.6.8.1 mempool subsystem sickness
Message-ID: <20040916055650.GE2300@suse.de>
References: <091420042058.15928.41475B8000002BA100003E382200763704970A059D0A0306@comcast.net> <4147555C.7010809@drdos.com> <414777EA.5080406@yahoo.com.au> <20040914223122.GA3325@galt.devicelogics.com> <41478419.3020606@yahoo.com.au> <41487B6D.1080202@drdos.com> <4148F059.9060100@yahoo.com.au>
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On Thu, Sep 16 2004, Nick Piggin wrote:
> Jeff V. Merkey wrote:
> >Jeff
> >
> >Here's the stats from the test of the patch against 2.6.8-rc2 with the 
> >patch applied
> >
> >
> 
> Scanning stats look good at a quick glance. kswapd doesn't seem to be
> going crazy.
> 
> However,
> size-65536         32834  32834  65536    1   16
> 
> This slab entry is taking up about 2GB of unreclaimable memory (order-4,
> no less). This must be a leak... does the number continue to rise as
> your system runs?

There's also a huge amount of 16-page bio + vecs in flight:

biovec-16         131340

That would point to a leak as well, most likely.

-- 
Jens Axboe

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