linux-kernel - Re: [RFC][PATCH] Check write to slab memory which freed already using mudflap

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Date:	Fri, 10 Jul 2009 11:52:00 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Janboe Ye <yuan-bo.ye@...orola.com>, linux-kernel@...r.kernel.org,
	vegard.nossum@...il.com, graydon@...hat.com, fche@...hat.com,
	npiggin@...e.de, cl@...ux-foundation.org
Subject: Re: [RFC][PATCH] Check write to slab memory which freed already
 using mudflap

Hi Ingo,

On Fri, 2009-07-10 at 10:47 +0200, Ingo Molnar wrote:
> > >  arch/arm/include/asm/elf.h |    1 +
> > >  arch/arm/kernel/module.c   |    1 +
> > >  drivers/Makefile           |    4 +-
> > >  include/mf-runtime.h       |   42 ++++++++++++++
> > >  kernel/Makefile            |    2 +-
> > >  kernel/mudflap.c           |  132 ++++++++++++++++++++++++++++++++++++++++++++
> > >  lib/Kconfig.debug          |    7 ++
> > >  mm/slab.c                  |   53 ++++++++++++++++++
> > >  8 files changed, 240 insertions(+), 2 deletions(-)
> > 
> > SLAB is (slowly) going away so you might want to port this to SLUB 
> > as well so we can merge both.
> 
> and SLQB which will replace both? :-/

Well, I cannot really expect people to port patches to SLQB until it's
in mainline. And whether SQLB will replace SLUB remains to be seen.
We're still fixing minor issues here and there in SLUB so I have no
reason to expect SLQB stabilization to happen overnight which means
we're going to have SLUB in the tree for a while anyway.

			Pekka

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