Re: Building 100 kernels; we suck at dependencies and drown in warnings

From: Sam Ravnborg
Date: Sun Feb 26 2006 - 17:40:58 EST


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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