Re: next-20081106: undefined reference to `__per_cpu_start'

From: Christoph Lameter
Date: Thu Nov 06 2008 - 14:15:38 EST


On Thu, 6 Nov 2008, Alexey Dobriyan wrote:

> On blackfin-BF526-EZBRD and other blackfins:
>
> LD .tmp_vmlinux1
> mm/built-in.o: In function `cpu_alloc_init':
> (.init.text+0x1486): undefined reference to `__per_cpu_start'
> mm/built-in.o: In function `cpu_alloc_init':
> (.init.text+0x148c): undefined reference to `__per_cpu_start'
> mm/built-in.o: In function `cpu_alloc_init':
> (.init.text+0x1492): undefined reference to `__per_cpu_end'
> mm/built-in.o: In function `cpu_alloc_init':
> (.init.text+0x1496): undefined reference to `__per_cpu_end'

Any contigencies for __per_cpu_start/end in your blackfin vmlinux.lds.h?
That is where these symbols are defined

Or did you use generic percpu support and set
CONFIG_HAVE_ZERO_BASED_PER_CPU?
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