linux-kernel - Re: Conditionals for development tests and output

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Message-ID: <20070602144348.GD5500@stusta.de>
Date:	Sat, 2 Jun 2007 16:43:48 +0200
From:	Adrian Bunk <bunk@...sta.de>
To:	Christoph Lameter <clameter@....com>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	Sam Ravnborg <sam@...nborg.org>, Dave Jones <davej@...hat.com>
Subject: Re: Conditionals for development tests and output

On Fri, Jun 01, 2007 at 09:17:53PM -0700, Christoph Lameter wrote:
> This introduces 
> 
> CONFIG_DEVELKERNEL
> 
> If CONFIG_DEVELKERNEL is set then this is a development kernel.
> Otherwise the kernel to be built is a a production kernel.
>...

I have two problems with your patch:

First, there will be a slub/slab specific mechanism for debug code 
controlled by a parameter in the Makefile plus the common 
CONFIG_DEBUG_KERNEL approach used by most other debug options.
We need one approach for all options.

And your approach could easily result in code paths never tested in 
-mm or -rc kernels exploding in the actual release.

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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