Date: Sun, 26 Feb 2006 23:43:00 +0100
From: Sam Ravnborg <sam@ravnborg.org>
To: Jesper Juhl <jesper.juhl@gmail.com>
Cc: linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>
Subject: Re: Building 100 kernels; we suck at dependencies and drown in warnings
Message-ID: <20060226224300.GA8835@mars.ravnborg.org>
References: <200602261721.17373.jesper.juhl@gmail.com>
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On Sun, Feb 26, 2006 at 05:21:17PM +0100, Jesper Juhl wrote:
> 
> Hi everyone,
> 
> I just sat down and build 100 kernels (2.6.16-rc4-mm2 kernels to be exact)
> 
> 	95 kernels were build with 'make randconfig'.
> 	1 kernel was build with the config I normally use for my own box.
> 	1 kernel was build from 'make defconfig'.
> 	1 kernel was build from 'make allmodconfig'.
> 	1 kernel was build from 'make allnoconfig'.
> 	1 kernel was build from 'make allyesconfig'.
> 
> That was an interresting experience. 
> 
> First of all not very many of the kernels actually build correctly and 
> secondly, if I grep the build logs for warnings I'm swamped.
> 
> Out of 100 kernels 82 failed to build - that's an 18% success rate people, 
> not very impressive.
I would recommed to fix the obvious cases and leave it.
Better to concentrate on 'normal' configs. This includes
allmodconfig/allyesconfig/defconfig but it certainly does not include a
bunch of random configs. Real peoples config is much better for this.

	Sam
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