linux-kernel - Re: powerpc64-linux-ld: mm/page_alloc.o:undefined reference to `node_reclaim

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Message-ID: <47426554-9d42-602d-d3fe-b6b38a48b8c6@infradead.org>
Date:   Sun, 30 Aug 2020 14:19:34 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     kernel test robot <lkp@...el.com>,
        Matt Fleming <matt@...eblueprint.co.uk>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Ingo Molnar <mingo@...nel.org>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: 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:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 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 https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -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 <lkp@...el.com>
> 
> 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
https://lore.kernel.org/lkml/20191223164220.GA14394@codeblueprint.co.uk/

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?".

Matt?

Acked-by: Randy Dunlap <rdunlap@...radead.org> # build-tested

thanks.
-- 
~Randy