linux-kernel - Re: powerpc64-linux-ld: arch/powerpc/mm/numa.o:undefined reference to `coregroup

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Message-ID: <e9a3cd97-5a26-7b43-0077-22f909986141@infradead.org>
Date:   Thu, 19 Nov 2020 15:51:29 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     kernel test robot <lkp@...el.com>,
        Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Michael Ellerman <mpe@...erman.id.au>,
        "Gautham R. Shenoy" <ego@...ux.vnet.ibm.com>
Subject: Re: powerpc64-linux-ld: arch/powerpc/mm/numa.o:undefined reference to
 `coregroup_enabled'

On 11/19/20 10:26 AM, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   c2e7554e1b85935d962127efa3c2a76483b0b3b6
> commit: f9f130ff2ec93c5949576bbfb168cc9530c23649 powerpc/numa: Detect support for coregroup
> date:   9 weeks ago
> config: powerpc64-randconfig-c003-20201104 (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
>          # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f9f130ff2ec93c5949576bbfb168cc9530c23649
>          git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>          git fetch --no-tags linus master
>          git checkout f9f130ff2ec93c5949576bbfb168cc9530c23649
>          # 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: arch/powerpc/mm/numa.o:(.toc+0x0): undefined reference to `coregroup_enabled'
>     powerpc64-linux-ld: mm/page_alloc.o:(.toc+0x0): undefined reference to `node_reclaim_distance'
>     powerpc64-linux-ld: mm/khugepaged.o:(.toc+0x0): undefined reference to `node_reclaim_distance'

Hm, OK.
CONFIG_NUMA=y
# CONFIG_SMP is not set

Michael, Gautham, does anyone care about this config combination?


Thanks.