linux-kernel - Re: [GIT PULL] kmemcheck for mainline

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Message-ID: <84144f020906120657j31fb3e82t2da251d31db6ba92@mail.gmail.com>
Date:	Fri, 12 Jun 2009 16:57:04 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Vegard Nossum <vegard.nossum@...il.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [GIT PULL] kmemcheck for mainline

Hi Linus,

On Fri, Jun 12, 2009 at 4:31 PM, Vegard Nossum<vegard.nossum@...il.com> wrote:
> Please consider pulling the kmemcheck tree;
>
> kmemcheck is a feature which can (at run-time) detect some uses of
> uninitialized memory within the kernel, similarly to what Valgrind's memcheck
> does for userspace programs. We also have the ability to find use-after-free
> errors and leaks of uninitialized data to userspace, both with a false-
> positive rate of zero.
>
> kmemcheck is self-contained in the sense that when CONFIG_KMEMCHECK=n, it has
> no effect on the compiled kernel whatsoever. Our code has lived in the -tip
> tree and been in -next for over a year, and has the acks of x86 and slab
> maintainers (Ingo and Pekka). Inclusion in mainline would lower the threshold
> for building and running kmemcheck-enabled kernels, which would also
> hopefully increase testing coverage of the rest of the kernel code.

I hope I didn't burn all my karma for this merge window with the slab
early boot patches but:

Acked-by: Pekka Enberg <penberg@...helsinki.fi>

for this pull request.

                                      Pekka
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