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Date: Sun, 19 Feb 2006 22:39:44 -0800
From: Andrew Morton <akpm@osdl.org>
To: "Luke Yang" <luke.adi@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Fix undefined symbols for nommu architecture --improved
 version
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"Luke Yang" <luke.adi@gmail.com> wrote:
>
> Index: git/linux-2.6/mm/nommu.c
>  ===================================================================
>  --- git.orig/linux-2.6/mm/nommu.c       2006-02-17 17:40:34.000000000 +0800
>  +++ git/linux-2.6/mm/nommu.c    2006-02-20 12:09:32.000000000 +0800
>  @@ -57,7 +57,10 @@
>   EXPORT_SYMBOL(vfree);
>   EXPORT_SYMBOL(vmalloc_to_page);
>   EXPORT_SYMBOL(vmalloc_32);
>  +EXPORT_SYMBOL(vmap);
>  +EXPORT_SYMBOL(vunmap);
> 
>  +#define randomize_va_space 0
>   /*
>   * Handle all mappings that got truncated by a "truncate()"
>   * system call.

That can't be right - the #define should be in a header file - mm.h:

#ifdef CONFIG_NOMMU
#define randomize_va_space 0
#else
extern int randomize_va_space;
#endif

Are you sure you test-compiled this?