Hi Jia, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [cannot apply to v5.3 next-20190917] [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/Jia-He/fix-double-page-fault-on-arm64/20190918-220036 config: arm64-allnoconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 7.4.0 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=7.4.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): mm/memory.o: In function `wp_page_copy': >> memory.c:(.text+0x8fc): undefined reference to `cpu_has_hw_af' memory.c:(.text+0x8fc): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `cpu_has_hw_af' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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