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Date: Tue, 5 Aug 2008 15:10:55 +0200
From: Sebastien Dugue <sebastien.dugue@bull.net>
To: Johannes Berg <johannes@sipsolutions.net>
Subject: Re: 64-bit build failure without hugetlbfs
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On Tue, 05 Aug 2008 13:39:49 +0200 Johannes Berg <johannes@sipsolutions.net> wrote:

>   LD      vmlinux.o
> mm/built-in.o: In function `.arch_get_unmapped_area_topdown':
> (.text+0x1d084): multiple definition of `.arch_get_unmapped_area_topdown'
> arch/powerpc/mm/built-in.o:(.text+0x7240): first defined here
> mm/built-in.o: In function `arch_get_unmapped_area_topdown':
> (.opd+0x2730): multiple definition of `arch_get_unmapped_area_topdown'
> arch/powerpc/mm/built-in.o:(.opd+0x918): first defined here
> mm/built-in.o: In function `.arch_get_unmapped_area':
> (.text+0x1ce3c): multiple definition of `.arch_get_unmapped_area'
> arch/powerpc/mm/built-in.o:(.text+0x72b8): first defined here
> mm/built-in.o: In function `arch_get_unmapped_area':
> (.opd+0x2718): multiple definition of `arch_get_unmapped_area'
> arch/powerpc/mm/built-in.o:(.opd+0x930): first defined here
> make: *** [vmlinux.o] Error 1
> 
> enabling hugetlbfs cures it.
> 
> johannes

  Or disabling CONFIG_PPC_64K_PAGES if you do not want to enable hugetlbfs...

  Sebastien.