Hi Kyle, [auto build test ERROR on ] url: https://github.com/0day-ci/linux/commits/Kyle-Huey/x86-arch_prctl-64-Use-SYSCALL_DEFINE2-to-define-sys_arch_prctl/20161111-074631 base: config: x86_64-randconfig-i0-201645 (attached as .config) compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): arch/x86/built-in.o: In function `set_cpuid_faulting': >> process.c:(.text+0xe78e): undefined reference to `msr_misc_features_enables_shadow' process.c:(.text+0xe7a3): undefined reference to `msr_misc_features_enables_shadow' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation