linux-kernel - Re: [Jfs-discussion] Out of memory on 3.5 kernels

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Date:	Tue, 27 Nov 2012 09:56:58 -0600
From:	Dave Kleikamp <dave.kleikamp@...cle.com>
To:	Nico Schottelius <nico-kernel20120920@...ottelius.org>,
	Valdis.Kletnieks@...edu, David Rientjes <rientjes@...gle.com>,
	Arend van Spriel <arend@...adcom.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	jfs-discussion@...ts.sourceforge.net
Subject: Re: [Jfs-discussion] Out of memory on 3.5 kernels

On 11/21/2012 04:37 PM, Dave Kleikamp wrote:
> On 10/30/2012 05:35 AM, Nico Schottelius wrote:
>> Good morning,
>>
>> update: this problem still exists on 3.6.2-1-ARCH and it got worse:
>>
>> I reformatted the external disk to use xfs, but as the my
>> root filesystem is still jfs, it still appears:
>>
>>  Active / Total Objects (% used)    : 642732 / 692268 (92.8%)
>>  Active / Total Slabs (% used)      : 24801 / 24801 (100.0%)
>>  Active / Total Caches (% used)     : 79 / 111 (71.2%)
>>  Active / Total Size (% used)       : 603522.30K / 622612.05K (96.9%)
>>  Minimum / Average / Maximum Object : 0.01K / 0.90K / 15.25K
>>
>>   OBJS ACTIVE  USE OBJ SIZE  SLABS OBJ/SLAB CACHE SIZE NAME                   
>> 475548 467649  98%    1.21K  18722       26    599104K jfs_ip

...

>>
>> I am wondering if anyone is feeling responsible for this bug or if the mid-term
>> solution is to move away from jfs?
> 
> Sorry, I haven't taken too close a look at this, but I did notice
> another conversation that may be related:
> 
> https://lkml.org/lkml/2012/11/17/26
> 
> The commit in question first showed up in 3.5-rc1, which coincides with
> your problem.

I believe this commit will fix the problem:
http://git.kernel.org/gitweb.cgi?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=4eff96d

It is targeted for the stable kernels.
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