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    SubjectRe: next-20081106: undefined reference to `__per_cpu_start'
    On Fri, Nov 07, 2008 at 04:21:14PM +1100, Stephen Rothwell wrote:
    > Hi Christoph,
    >
    > On Thu, 6 Nov 2008 13:15:07 -0600 (CST) Christoph Lameter <cl@linux-foundation.org> wrote:
    > >
    > > 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?
    >
    > Also a avr32 allnoconfig
    > (http://kisskb.ellerman.id.au/kisskb/buildresult/53233/) gets:
    >
    > backing-dev.c:(.init.text+0xc4c): undefined reference to `__per_cpu_start'
    > backing-dev.c:(.init.text+0xc50): undefined reference to `__per_cpu_end'
    >
    > and avr32 defconfig
    > (http://kisskb.ellerman.id.au/kisskb/buildresult/53225/) gets:
    >
    > vmstat.c:(.init.text+0xff0): undefined reference to `__per_cpu_start'
    > vmstat.c:(.init.text+0xff4): undefined reference to `__per_cpu_end'

    BTW, on alpha I get

    mm/cpu_alloc.c:146:1: error: pasting "per_cpu__" and "(" does not give a valid preprocessing token


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