From: kladit@t-online.de (Klaus Dittrich)
To: Andrew Morton <akpm@osdl.org>
Cc: Klaus Dittrich <kladit@t-online.de>, linux-kernel@vger.kernel.org
Subject: Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2
Date: Mon, 26 Jul 2004 22:02:04 +0200 [thread overview]
Message-ID: <4105633C.3080204@xeon2.local.here> (raw)
In-Reply-To: <20040726123702.222ae654.akpm@osdl.org>
Andrew Morton wrote:
>kladit@t-online.de (Klaus Dittrich) wrote:
>
>
>>>Can you narrow the onset of the problem down to any particular kernel
>>>
>>>
>> >snapshot?
>>
>> Did it and here is the answer.
>>
>> kernel-2.6.7 and bk's up to 2.6.7-bk7 survived a du -s,
>> kernels starting with 2.6.7-bk8 did not.
>>
>>
>
>Dammit, -bk7 to -bk8 is a 1.8M diff. Relevant changes include the switch
>to the rcu callbacks (make them take an rcu_head* rather than a void*) and
>the introduction of /proc/sys/vm/vfs_cache_pressure.
>
>So the immediate question is: please check the contents of your
>vfs_cache_pressure tunable. It should be 100. A setting of zero would
>cause this behaviour.
>
>
>
>> Compiler gcc-3.4.1
>>
>>
>
>It would be useful to try a different compiler version.
>
>There's _something_ different in your setup. If we can work out what this
>factor is, it will lead us to the bug.
>
>
>
cat /proc/sys/vm/vfs_cache_pressure shows 100.
Should I try an older or newer compiler ?
next prev parent reply other threads:[~2004-07-26 20:35 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-26 15:06 dentry cache leak? Re: rsync out of memory 2.6.8-rc2 Klaus Dittrich
2004-07-26 19:37 ` Andrew Morton
2004-07-26 20:02 ` Klaus Dittrich [this message]
2004-07-26 20:38 ` Andrew Morton
2004-07-26 21:39 ` Klaus Dittrich
2004-07-26 22:14 ` Jan-Frode Myklebust
2004-07-27 20:43 ` Klaus Dittrich
2004-07-27 21:05 ` Klaus Dittrich
2004-07-28 1:21 ` Nick Piggin
2004-07-28 15:06 ` Klaus Dittrich
2004-07-29 3:31 ` Nick Piggin
2004-07-29 21:07 ` Andrew Morton
2004-07-30 16:30 ` Marcelo Tosatti
2004-07-30 19:47 ` Andrew Morton
2004-07-31 2:01 ` Marcelo Tosatti
2004-07-31 17:23 ` Linus Torvalds
2004-07-31 21:39 ` Andrew Morton
2004-08-03 6:55 ` Nick Piggin
-- strict thread matches above, loose matches on Subject: below --
2004-08-01 9:47 Klaus Dittrich
2004-07-19 9:19 Klaus Dittrich
2004-07-19 11:20 ` dentry cache leak? " bert hubert
[not found] ` <20040719113228.GA15295@outpost.ds9a.nl>
2004-07-19 12:56 ` Klaus Dittrich
2004-07-26 1:06 ` Andrew Morton
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