linux-kernel - Re: Menuconfig has butterfly effects?

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Message-Id: <20070227153616.712508c6.randy.dunlap@oracle.com>
Date:	Tue, 27 Feb 2007 15:36:16 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Rob Landley <rob@...dley.net>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Menuconfig has butterfly effects?

On Tue, 27 Feb 2007 18:12:42 -0500 Rob Landley wrote:

> I ran "make ARCH=x86_64 menuconfig", did a lot of editing, and saved 
> the .config.  Then I copied that to a backup, ran "make oldconfig" on the 
> config I'd just saved, and compared it with the backup:
> 
> --- .config     2007-02-27 18:10:01.000000000 -0500
> +++ tryit       2007-02-27 18:09:09.000000000 -0500
> @@ -1,7 +1,7 @@
>  #
>  # Automatically generated make config: don't edit
>  # Linux kernel version: 2.6.20
> -# Tue Feb 27 18:10:01 2007
> +# Tue Feb 27 18:08:41 2007
>  #
>  CONFIG_X86_64=y
>  CONFIG_64BIT=y
> @@ -120,6 +120,9 @@
>  # CONFIG_PREEMPT_VOLUNTARY is not set
>  # CONFIG_PREEMPT is not set
>  CONFIG_ARCH_FLATMEM_ENABLE=y
> +# CONFIG_FLATMEM_MANUAL is not set
> +# CONFIG_DISCONTIGMEM_MANUAL is not set
> +# CONFIG_SPARSEMEM_MANUAL is not set
>  CONFIG_FLATMEM=y
>  CONFIG_FLAT_NODE_MEM_MAP=y
>  # CONFIG_SPARSEMEM_STATIC is not set
> 
> The first hunk I expect, the second I did not.  Anybody care to venture a 
> guess why the visibility logic is unstable?

can we get .config^Wtryit ?  (version 0, not version 1)

---
~Randy
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