From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Guennadi Liakhovetski <gl@dsa-ac.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [2.6.17.4] slabinfo.buffer_head increases
Date: Tue, 12 Sep 2006 12:47:39 +1000 [thread overview]
Message-ID: <45061FCB.1000402@yahoo.com.au> (raw)
In-Reply-To: <Pine.LNX.4.63.0609061341150.1700@pcgl.dsa-ac.de>
Guennadi Liakhovetski wrote:
>> On Mon, 10 Jul 2006, Guennadi Liakhovetski wrote:
>>
>>> I am obsering a steadily increasing buffer_head value in slabinfo under
>>> 2.6.17.4. I searched the net / archives and didn't find anything
>>> directly relevant. Does anyone have an idea or how shall we debug it?
>>
>
> The problem is still there under 2.6.18-rc2. I narrowed it down to
> ext3 journal. To reproduce one just has to mount an ext3 partition and
> perform (write) accesses to it. A loop { touch /mnt/foo; sleep 1; }
> suffices - just let it run for a couple of minutes and monitor
> buffer_head in /proc/slabinfo. If you mount it as ext2 the problem is
> gone.
What data mode is ext3 mounted with?
Is the memory reclaimable? If yes, is it a problem?
--
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next prev parent reply other threads:[~2006-09-12 2:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-10 11:28 [2.6.17.4] slabinfo.buffer_head increases Guennadi Liakhovetski
2006-07-10 12:19 ` Guennadi Liakhovetski
2006-09-06 11:48 ` Guennadi Liakhovetski
2006-09-12 2:47 ` Nick Piggin [this message]
2006-09-12 7:40 ` Guennadi Liakhovetski
2006-09-13 2:32 ` Nick Piggin
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