Hi Al, FYI, kernel build failed on tree: git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal.git execve2 head: 7204d4760ba4e202661c0eb756b782eed8bc3780 commit: f5482c1e6f4e9fc7daca3f3de7df1203ac661cfa [17/18] s390: fold execve_tail() into start_thread(), convert to generic sys_execve() config: s390-allyesconfig (attached as .config) All related error/warning messages: fs/binfmt_elf.c: In function 'load_elf_binary': fs/binfmt_elf.c:976:2: error: implicit declaration of function 'execve_tail' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors -- In file included from fs/compat_binfmt_elf.c:133:0: fs/binfmt_elf.c: In function 'load_elf_binary': fs/binfmt_elf.c:976:2: error: implicit declaration of function 'execve_tail' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors vim +976 fs/binfmt_elf.c 971 * function descriptor entries when executing dynamically links apps. 972 */ 973 ELF_PLAT_INIT(regs, reloc_func_desc); 974 #endif 975 > 976 start_thread(regs, elf_entry, bprm->p); 977 retval = 0; 978 out: 979 kfree(loc); 980 out_ret: 981 return retval; --- 0-DAY kernel build testing backend Open Source Technology Centre Fengguang Wu Intel Corporation