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SubjectRe: powerpc64-linux-ld: mm/page_alloc.o:undefined reference to `node_reclaim_distance'
On 8/30/20 12:32 PM, kernel test robot wrote:
> Hi Matt,
> FYI, the error/warning still remains.
> tree: master
> head: 1127b219ce9481c84edad9711626d856127d5e51
> commit: a55c7454a8c887b226a01d7eed088ccb5374d81e sched/topology: Improve load balancing on AMD EPYC systems
> date: 12 months ago
> config: powerpc64-randconfig-c003-20200831 (attached as .config)
> compiler: powerpc64-linux-gcc (GCC) 9.3.0
> reproduce (this is a W=1 build):
> wget -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> git checkout a55c7454a8c887b226a01d7eed088ccb5374d81e
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc64
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <>
> All errors (new ones prefixed by >>):
> powerpc64-linux-ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash'
> powerpc64-linux-ld: arch/powerpc/perf/perf_regs.o: in function `perf_reg_value':
> arch/powerpc/perf/perf_regs.c:80: undefined reference to `.is_sier_available'
>>> powerpc64-linux-ld: mm/page_alloc.o:(.toc+0x0): undefined reference to `node_reclaim_distance'
> ---

Build error for undefined "node_reclaim_distance" has been reported on both
arch/sh/ and arch/powerpc64/.

Matt's patch here

fixes the build error in both cases (both $ARCH-es), although it needs to be
resent as a patch instead of "can someone test this?".


Acked-by: Randy Dunlap <> # build-tested


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