From mboxrd@z Thu Jan  1 00:00:00 1970
From: Frank van Maarseveen <frankvm@frankvm.com>
Subject: 2.6.39.3 nouveau_gart_manager_new() leaks memory
Date: Thu, 28 Jul 2011 12:07:53 +0200
Message-ID: <20110728100753.GA16736@janus>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Return-path: <dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org>
Received: from janus.localdomain (frankvm.xs4all.nl [83.163.148.79])
	by gabe.freedesktop.org (Postfix) with ESMTP id 152FC9E794
	for <dri-devel@lists.freedesktop.org>;
	Thu, 28 Jul 2011 03:07:55 -0700 (PDT)
Content-Disposition: inline
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/dri-devel>,
	<mailto:dri-devel-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://lists.freedesktop.org/archives/dri-devel>
List-Post: <mailto:dri-devel@lists.freedesktop.org>
List-Help: <mailto:dri-devel-request@lists.freedesktop.org?subject=help>
List-Subscribe: <http://lists.freedesktop.org/mailman/listinfo/dri-devel>,
	<mailto:dri-devel-request@lists.freedesktop.org?subject=subscribe>
Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org
Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org
To: dri-devel@lists.freedesktop.org
List-Id: dri-devel@lists.freedesktop.org

/proc/slabinfo shows an anomaly on a 2.6.39.3 x86_64 system. After
running F14 + kde4 for a while it shows high kmalloc-192 numbers:

# name <active_objs> <num_objs> <objsize> <objperslab> <pagesperslab>...
kmalloc-192       735694 735723    264   31    2 : tunables    0    0    0 : slabdata  23733  23733      0

Digging in /sys/kernel/slab/kmalloc-192/alloc_calls one line stands out:

 701960 nouveau_gart_manager_new+0x5d/0xf0 age=24/7405655/87972315 pid=1-4920 cpus=0-3

There are 709907 allocations total and according to
/sys/kernel/slab/kmalloc-192/free_calls there are 52245 free
calls total.

-- 
Frank