linux-kernel - Re: [PATCH] mm: kmemleak: Change kmemleak default buffer size

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Message-ID: <4C20702C.1080405@cs.helsinki.fi>
Date:	Tue, 22 Jun 2010 11:11:24 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Sankar P <sankar.curiosity@...il.com>
CC:	linux-kernel@...r.kernel.org, lethal@...ux-sh.org,
	linux-sh@...r.kernel.org, lrodriguez@...eros.com,
	catalin.marinas@....com, rnagarajan@...ell.com, teheo@...ell.com,
	linux-mm@...ck.org
Subject: Re: [PATCH] mm: kmemleak: Change kmemleak default buffer size

Sankar P wrote:
> If we try to find the memory leaks in kernel that is
> compiled with 'make defconfig', the default buffer size
> seem to be inadequate. Change the buffer size from
> 400 to 1000, which is sufficient in most cases.
> 
> Signed-off-by: Sankar P <sankar.curiosity@...il.com>
> ---
>  arch/sh/configs/sh7785lcr_32bit_defconfig |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/sh/configs/sh7785lcr_32bit_defconfig b/arch/sh/configs/sh7785lcr_32bit_defconfig
> index 71f39c7..b02e5ae 100644
> --- a/arch/sh/configs/sh7785lcr_32bit_defconfig
> +++ b/arch/sh/configs/sh7785lcr_32bit_defconfig
> @@ -1710,7 +1710,7 @@ CONFIG_SCHEDSTATS=y
>  # CONFIG_DEBUG_OBJECTS is not set
>  # CONFIG_DEBUG_SLAB is not set
>  CONFIG_DEBUG_KMEMLEAK=y
> -CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE=400
> +CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE=1000
>  # CONFIG_DEBUG_KMEMLEAK_TEST is not set
>  CONFIG_DEBUG_PREEMPT=y
>  # CONFIG_DEBUG_RT_MUTEXES is not set

I'm pretty sure you want to do this change in lib/Kconfig.debug.
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