linux-kernel - 2.6.31-rc4 - slab entry tak_delay

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Message-ID: <20090729082047.048ee1a8@tux.DEF.witbe.net>
Date:	Wed, 29 Jul 2009 08:20:47 +0200
From:	Paul Rolland <rol@...917.net>
To:	Linux Kernel <linux-kernel@...r.kernel.org>
Cc:	rol@...917.net
Subject: 2.6.31-rc4 - slab entry tak_delay_info leaking ???

Hello,

Since I'm running 2.6.31-rc? (3 or 4 I think), I often find my machine with
my X session killed in the morning, and the kdm login screen displayed.

This morning, I decided to save the /var/log/messages to check it before
rebooting, and saw that the OOM killer triggered during the night.
So, I quickly made a copy of it, and a slabtop output. There came the
surprise : 
  OBJS ACTIVE  USE OBJ SIZE  SLABS OBJ/SLAB CACHE SIZE NAME
12899448 12899445  99%    0.11K 358318       36   1433272K
task_delay_info       

On a freshly booted machine, the same entry shows :
  3204   3191  99%    0.11K     89       36       356K task_delay_info
after the X session is started.

Please find attached the slabtop -o output.

Regards,
Paul

Download attachment "rol.crash2" of type "application/octet-stream" (6087 bytes)