From: kladit@t-online.de (Klaus Dittrich)
To: bert hubert <ahu@ds9a.nl>
Cc: Klaus Dittrich <kladit@t-online.de>,
linux mailing-list <linux-kernel@vger.kernel.org>
Subject: Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2
Date: Mon, 19 Jul 2004 14:56:09 +0200 [thread overview]
Message-ID: <40FBC4E9.2000504@xeon2.local.here> (raw)
In-Reply-To: <20040719113228.GA15295@outpost.ds9a.nl>
bert hubert wrote:
>/proc/fs/dentry-state of course, sorry
>
>On Mon, Jul 19, 2004 at 01:20:47PM +0200, bert hubert wrote:
>
>
>>On Mon, Jul 19, 2004 at 11:19:43AM +0200, Klaus Dittrich wrote:
>>
>>
>>
>>>I found out I could trigger the memory outage using du -s /disc1 too.
>>>
>>>
>>Including crashing and/or running out of swap? That would indicate that the
>>dentry cache is not cleaning itself up, or that something is wrong with
>>reference counting.
>>
>>Can you run 'cat fs/dentry-state' before and after the du -s? (assuming
>>there is an 'after'. Also, which fs is /disc1 on? any messages in dmesg?
>>
>>dentry-state
>>------------
>>
>>Status of the directory cache. Since directory entries are
>>dynamically allocated and deallocated, this file indicates the current
>>status. It holds six values, in which the last two are not used and are
>>always zero. The others are listed in table 2-1.
>>
>>
>>Table 2-1: Status files of the directory cache
>>..............................................................................
>> File Content
>> nr_dentry Almost always zero
>> nr_unused Number of unused cache entries
>> age_limit
>> in seconds after the entry may be reclaimed, when memory is
>>short
>> want_pages internally
>>
>>
>>--
>>http://www.PowerDNS.com Open source, database driven DNS Software
>>http://lartc.org Linux Advanced Routing & Traffic Control HOWTO
>>-
>>To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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>>
>>
>>
>
>
>
The fs is ext2.cat /proc/sys/fs/dentry-state
Output of cat /proc/sys/fs/dentry-state before and after processes got
killed.
891083 888395 45 0 0 0
1142933 1085759 45 0 0 0
--
Klaus
next prev parent reply other threads:[~2004-07-19 13:11 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-19 9:19 rsync out of memory 2.6.8-rc2 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 [this message]
2004-07-26 1:06 ` Andrew Morton
-- strict thread matches above, loose matches on Subject: below --
2004-07-26 15:06 Klaus Dittrich
2004-07-26 19:37 ` Andrew Morton
2004-07-26 20:02 ` Klaus Dittrich
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
2004-08-01 9:47 Klaus Dittrich
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