From: Rafael Aquini <aquini@redhat.com>
To: Christoph Lameter <cl@linux.com>
Cc: linux-mm@kvack.org, Randy Dunlap <rdunlap@xenotime.net>,
Pekka Enberg <penberg@kernel.org>, Matt Mackall <mpm@selenic.com>,
Rik van Riel <riel@redhat.com>, Josef Bacik <josef@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] oom: add sysctl to enable slab memory dump
Date: Wed, 22 Feb 2012 14:14:41 -0200 [thread overview]
Message-ID: <20120222161440.GB1986@x61.redhat.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1202220754140.21637@router.home>
On Wed, Feb 22, 2012 at 07:55:16AM -0600, Christoph Lameter wrote:
>
> Please use node_nr_objects() instead of directly accessing total_objects.
> total_objects are only available if debugging support was compiled in.
>
Shame on me! I've wrongly assumed that it would be safe accessing
the element because SLUB_DEBUG is turned on by default when slub is chosen.
Considering your note on my previous mistake, shall I assume now that it
would be better having this whole dump feature dependable on CONFIG_SLUB_DEBUG,
instead of just CONFIG_SLUB ?
Thanks for your feedback!
--
Rafael Aquini <aquini@redhat.com>
Software Maintenance Engineer
Red Hat, Inc.
+55 51 4063.9436 / 8426138 (ext)
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next prev parent reply other threads:[~2012-02-22 16:16 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-22 11:53 [PATCH] oom: add sysctl to enable slab memory dump Rafael Aquini
2012-02-22 13:17 ` Pekka Enberg
2012-02-22 16:04 ` Rafael Aquini
2012-02-22 13:55 ` Christoph Lameter
2012-02-22 16:14 ` Rafael Aquini [this message]
2012-02-22 16:29 ` Christoph Lameter
2012-02-23 0:44 ` David Rientjes
2012-02-23 15:02 ` Josef Bacik
2012-02-23 23:09 ` David Rientjes
2012-02-24 15:10 ` Josef Bacik
2012-02-24 21:45 ` David Rientjes
2012-02-24 21:52 ` Pekka Enberg
2012-02-24 23:51 ` David Rientjes
2012-02-23 15:22 ` Rafael Aquini
2012-02-23 16:03 ` Pekka Enberg
2012-02-23 23:17 ` David Rientjes
2012-02-24 6:57 ` Pekka Enberg
2012-02-24 10:03 ` David Rientjes
2012-02-24 10:05 ` Pekka Enberg
2012-02-24 10:38 ` Rafael Aquini
2012-02-29 3:39 ` Rafael Aquini
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