From: Dave Kleikamp <dave.kleikamp@oracle.com>
To: David Rientjes <rientjes@google.com>
Cc: Nico Schottelius <nico-kernel20120920@schottelius.org>,
Arend van Spriel <arend@broadcom.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
Dave Kleikamp <shaggy@kernel.org>,
jfs-discussion@lists.sourceforge.net
Subject: Re: Out of memory on 3.5 kernels
Date: Tue, 25 Sep 2012 10:07:14 -0500 [thread overview]
Message-ID: <5061C8A2.1020605@oracle.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1209241538310.6356@chino.kir.corp.google.com>
On 09/24/2012 05:43 PM, David Rientjes wrote:
> On Fri, 21 Sep 2012, Nico Schottelius wrote:
>
>> Active / Total Objects (% used) : 1165130 / 1198087 (97.2%)
>> Active / Total Slabs (% used) : 81027 / 81027 (100.0%)
>> Active / Total Caches (% used) : 69 / 101 (68.3%)
>> Active / Total Size (% used) : 1237249.81K / 1246521.94K (99.3%)
>> Minimum / Average / Maximum Object : 0.01K / 1.04K / 15.23K
>>
>> OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME
>> 993607 993607 100% 1.21K 75358 26 2411456K jfs_ip
>
> Well that doesn't look good. 100% of the inode cache for jfs are being
> used which either means
>
> - there's a memory leak, or
maybe a missing iput() somewhere?
Nico, does unmounting the usb drive after killing the backup clean up
the jfs inode cache?
> - there's some sort of throttling issue in jfs.
>
> And those objects are consuming ~2.3GB of slab on your 4GB machine and
> seems to only have occurred between v3.4.2 to v3.5.3.
Almost nothing in jfs has changed between these releases. Only this:
vfs: Rename end_writeback() to clear_inode()
> It would be interesting to see what kmemleak would tell us.
>
> Adding Dave Kleikamp to the cc.
>
next prev parent reply other threads:[~2012-09-25 15:07 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-20 13:52 Out of memory on 3.5 kernels Arend van Spriel
2012-09-21 19:49 ` Nico Schottelius
2012-09-21 21:02 ` Fwd: " Arend van Spriel
2012-09-24 22:43 ` David Rientjes
2012-09-25 15:07 ` Dave Kleikamp [this message]
2012-09-26 6:03 ` Nico Schottelius
2012-09-26 6:06 ` Nico Schottelius
2012-09-26 8:57 ` Nico Schottelius
2012-09-27 5:52 ` Nico Schottelius
2012-10-03 21:23 ` Nico Schottelius
2012-10-05 15:48 ` Valdis.Kletnieks
2012-10-05 17:51 ` Nico Schottelius
2012-10-30 10:35 ` Nico Schottelius
2012-11-01 18:04 ` [Jfs-discussion] " Tino Reichardt
2012-11-21 22:37 ` Dave Kleikamp
2012-11-27 15:56 ` [Jfs-discussion] " Dave Kleikamp
2012-11-27 16:11 ` Nico Schottelius
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