From: Christoph Lameter <cl@linux.com>
To: Michal Hocko <mhocko@suse.cz>
Cc: Han Pingtian <hanpt@linux.vnet.ibm.com>,
Pekka Enberg <penberg@kernel.org>,
David Rientjes <rientjes@google.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org
Subject: Re: OOM-killer and strange RSS value in 3.9-rc7
Date: Wed, 24 Apr 2013 15:36:20 +0000 [thread overview]
Message-ID: <0000013e3cb0340d-00f360e3-076b-478e-b94c-ddd4476196ce-000000@email.amazonses.com> (raw)
In-Reply-To: <20130424094732.GB31960@dhcp22.suse.cz>
On Wed, 24 Apr 2013, Michal Hocko wrote:
> [CCing SL.B people and linux-mm list]
>
> Just for quick summary. The reporter sees OOM situations with almost
> whole memory filled with slab memory. This is a powerpc machine with 4G
> RAM.
Boot with "slub_debug" or enable slab debugging.
> /proc/slabinfo shows that almost whole slab occupied memory is on
Please enable debugging and look at where these objects were allocated.
> It is not clear who consumes that memory and the reporter claims this is
> vanilla 3.9-rc7 kernel without any third party modules loaded. The issue
> seems to be present only with CONFIG_SLUB.
cat /sys/kernel/slab/kmalloc-*/alloc_calls
will show where these objects are allocated.
A dump of the other fields in /sys/kernel/slab/kmalloc*/* would also be
useful.
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next prev parent reply other threads:[~2013-04-24 15:36 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <alpine.DEB.2.02.1304161315290.30779@chino.kir.corp.google.com>
[not found] ` <20130417094750.GB2672@localhost.localdomain>
[not found] ` <20130417141909.GA24912@dhcp22.suse.cz>
[not found] ` <20130418101541.GC2672@localhost.localdomain>
[not found] ` <20130418175513.GA12581@dhcp22.suse.cz>
[not found] ` <20130423131558.GH8001@dhcp22.suse.cz>
[not found] ` <20130424044848.GI2672@localhost.localdomain>
2013-04-24 9:47 ` Michal Hocko
2013-04-24 15:36 ` Christoph Lameter [this message]
2013-04-25 6:07 ` Han Pingtian
2013-04-25 17:17 ` Christoph Lameter
2013-04-27 8:20 ` Will Huck
2013-04-29 14:49 ` Christoph Lameter
2013-05-01 3:13 ` Will Huck
2013-05-02 15:10 ` Christoph Lameter
2013-05-09 13:17 ` Will Huck
2013-05-09 14:00 ` Christoph Lameter
2013-05-10 0:42 ` Will Huck
2013-05-10 16:00 ` Christoph Lameter
2013-04-25 18:24 ` Christoph Lameter
2013-04-26 6:24 ` Han Pingtian
2013-04-26 14:42 ` Christoph Lameter
2013-04-27 11:24 ` Han Pingtian
2013-04-29 14:50 ` Christoph Lameter
2013-04-29 14:57 ` Michal Hocko
2013-05-02 10:56 ` Han Pingtian
2013-05-02 15:10 ` Christoph Lameter
2013-05-03 3:03 ` Han Pingtian
2013-05-03 15:25 ` Christoph Lameter
2013-05-03 15:34 ` Michal Hocko
2013-05-03 16:16 ` Christoph Lameter
2013-12-27 10:39 ` Wanpeng Li
2014-01-06 13:15 ` Wanpeng Li
[not found] ` <52caac5c.27cb440a.533d.ffffbbd2SMTPIN_ADDED_BROKEN@mx.google.com>
2014-01-21 22:12 ` David Rientjes
2014-01-22 23:45 ` Wanpeng Li
2013-04-25 5:41 ` Han Pingtian
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