Re: [PATCH] mm: Expose lazy vfree pages to control via sysctl

From: kbuild test robot
Date: Fri Jan 04 2019 - 13:31:07 EST


Hi Hiroshi,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.20 next-20190103]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Ashish-Mhetre/mm-Expose-lazy-vfree-pages-to-control-via-sysctl/20190105-003852
config: c6x-evmc6678_defconfig (attached as .config)
compiler: c6x-elf-gcc (GCC) 8.1.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=8.1.0 make.cross ARCH=c6x

All errors (new ones prefixed by >>):

>> kernel/sysctl.o:(.fardata+0x2d4): undefined reference to `sysctl_lazy_vfree_pages'

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