From: Andrew Morton <akpm@linux-foundation.org>
To: Dave Jones <davej@redhat.com>
Cc: Christoph Lameter <clameter@sgi.com>, linux-mm@kvack.org
Subject: Re: [SLUB 3/5] Validation of slabs (metadata and guard zones)
Date: Tue, 10 Apr 2007 14:42:49 -0700 [thread overview]
Message-ID: <20070410144249.b0e70a67.akpm@linux-foundation.org> (raw)
In-Reply-To: <20070410204711.GB1283@redhat.com>
On Tue, 10 Apr 2007 16:47:11 -0400
Dave Jones <davej@redhat.com> wrote:
> On Tue, Apr 10, 2007 at 01:31:37PM -0700, Andrew Morton wrote:
>
> > > an object have not been compromised.
> > >
> > > A single slabcache can be checked by writing a 1 to the "validate" file.
> > >
> > > i.e.
> > >
> > > echo 1 >/sys/slab/kmalloc-128/validate
> > >
> > > or use the slabinfo tool to check all slabs
> > >
> > > slabinfo -v
> > >
> > > Error messages will show up in the syslog.
> >
> > Neato.
>
> I had a patch (I think originally from Manfred Spraul) that I carried
> in Fedora for a while which this patch reminded me of.
> Instead of a /sys file however, it ran off a timer every few
> minutes to check redzones of unfreed objects.
yup. Of course, that can be done with a cronjob with slub.
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next prev parent reply other threads:[~2007-04-10 21:42 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-10 19:19 [SLUB 1/5] Fix object counting Christoph Lameter
2007-04-10 19:19 ` [SLUB 2/5] Enable tracking of full slabs Christoph Lameter
2007-04-10 19:19 ` [SLUB 3/5] Validation of slabs (metadata and guard zones) Christoph Lameter
2007-04-10 20:31 ` Andrew Morton
2007-04-10 20:47 ` Dave Jones
2007-04-10 21:42 ` Andrew Morton [this message]
2007-04-10 21:10 ` Christoph Lameter
2007-04-10 21:13 ` Christoph Lameter
2007-04-10 21:14 ` Christoph Lameter
2007-04-10 21:15 ` Christoph Lameter
2007-04-10 21:21 ` Christoph Lameter
2007-04-10 21:40 ` Christoph Lameter
2007-04-10 22:49 ` Christoph Lameter
2007-04-10 23:43 ` Andrew Morton
2007-04-10 23:17 ` Christoph Lameter
2007-04-10 23:38 ` Christoph Lameter
2007-04-11 0:00 ` Christoph Lameter
2007-04-11 0:15 ` Christoph Lameter
2007-04-11 6:24 ` question on mmap sameer sameer
2007-04-13 17:59 ` Hugh Dickins
2007-04-11 2:24 ` [SLUB 3/5] Validation of slabs (metadata and guard zones) Christoph Lameter
2007-04-11 3:08 ` Andrew Morton
2007-04-10 19:19 ` [SLUB 4/5] Add ability to list alloc / free callers per slab Christoph Lameter
2007-04-10 19:19 ` [SLUB 5/5] Drop version number Christoph Lameter
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