tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 5e46d1b78a03d52306f21f77a4e4a144b6d31486 commit: 5ffa25502b5ab3d639829a2d1e316cff7f59a41e bpf: Add instructions for atomic_[cmp]xchg date: 3 months ago config: um-randconfig-r023-20210330 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5ffa25502b5ab3d639829a2d1e316cff7f59a41e git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 5ffa25502b5ab3d639829a2d1e316cff7f59a41e # save the attached .config to linux build tree make W=1 ARCH=um If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): /usr/bin/ld: atomic64_test.c:(.init.text+0x5620): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x562b): undefined reference to `atomic64_xchg_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x567a): undefined reference to `atomic64_read_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x56cd): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x56f0): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: atomic64_test.c:(.init.text+0x5742): undefined reference to `atomic64_read_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5799): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x57bc): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: atomic64_test.c:(.init.text+0x580b): undefined reference to `atomic64_read_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x585e): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5881): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: atomic64_test.c:(.init.text+0x58d0): undefined reference to `atomic64_read_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x591e): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5945): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: atomic64_test.c:(.init.text+0x5994): undefined reference to `atomic64_read_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x59e7): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5a0a): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: atomic64_test.c:(.init.text+0x5a59): undefined reference to `atomic64_read_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5aac): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5acf): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: atomic64_test.c:(.init.text+0x5b21): undefined reference to `atomic64_read_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5b74): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5b9d): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: atomic64_test.c:(.init.text+0x5bec): undefined reference to `atomic64_read_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5c3f): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5c63): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: atomic64_test.c:(.init.text+0x5cb2): undefined reference to `atomic64_read_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5d02): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5d10): undefined reference to `atomic64_add_unless_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5d8f): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5da5): undefined reference to `atomic64_add_unless_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5e24): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5e29): undefined reference to `atomic64_dec_if_positive_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5ead): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5eb2): undefined reference to `atomic64_dec_if_positive_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5f30): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5f35): undefined reference to `atomic64_dec_if_positive_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5fb2): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x5fb7): undefined reference to `atomic64_inc_not_zero_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x6030): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x6035): undefined reference to `atomic64_inc_not_zero_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x60a5): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x60aa): undefined reference to `atomic64_inc_not_zero_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x611a): undefined reference to `atomic64_set_386' /usr/bin/ld: atomic64_test.c:(.init.text+0x611f): undefined reference to `atomic64_inc_not_zero_386' /usr/bin/ld: net/core/net_namespace.o: in function `__net_gen_cookie': net_namespace.c:(.text+0x122d): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: net_namespace.c:(.text+0x1234): undefined reference to `atomic64_read_386' /usr/bin/ld: net_namespace.c:(.text+0x126b): undefined reference to `atomic64_dec_return_386' /usr/bin/ld: net/core/sock_diag.o: in function `__sock_gen_cookie': sock_diag.c:(.text+0x56d): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: sock_diag.c:(.text+0x574): undefined reference to `atomic64_read_386' /usr/bin/ld: sock_diag.c:(.text+0x5ab): undefined reference to `atomic64_dec_return_386' /usr/bin/ld: net/core/sock_diag.o: in function `sock_diag_check_cookie': sock_diag.c:(.text+0x64c): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: sock_diag.c:(.text+0x653): undefined reference to `atomic64_read_386' /usr/bin/ld: sock_diag.c:(.text+0x69b): undefined reference to `atomic64_dec_return_386' /usr/bin/ld: net/core/sock_diag.o: in function `sock_diag_save_cookie': sock_diag.c:(.text+0x6d8): undefined reference to `atomic64_read_386' /usr/bin/ld: sock_diag.c:(.text+0x739): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: sock_diag.c:(.text+0x740): undefined reference to `atomic64_read_386' /usr/bin/ld: sock_diag.c:(.text+0x77b): undefined reference to `atomic64_dec_return_386' /usr/bin/ld: net/batman-adv/tp_meter.o: in function `batadv_tp_send': tp_meter.c:(.text+0x9b5): undefined reference to `atomic64_read_386' /usr/bin/ld: net/batman-adv/tp_meter.o: in function `batadv_tp_recv_ack.isra.0': tp_meter.c:(.text+0x1a73): undefined reference to `atomic64_add_386' /usr/bin/ld: net/batman-adv/tp_meter.o: in function `batadv_tp_start': tp_meter.c:(.text+0x2067): undefined reference to `atomic64_set_386' /usr/bin/ld: kernel/sched/cputime.o: in function `account_user_time': cputime.c:(.text+0x42): undefined reference to `atomic64_add_386' /usr/bin/ld: kernel/sched/cputime.o: in function `account_guest_time': cputime.c:(.text+0xe2): undefined reference to `atomic64_add_386' /usr/bin/ld: kernel/sched/cputime.o: in function `account_system_index_time': cputime.c:(.text+0x18d): undefined reference to `atomic64_add_386' /usr/bin/ld: kernel/sched/rt.o: in function `update_curr_rt': rt.c:(.text+0x238): undefined reference to `atomic64_add_386' /usr/bin/ld: kernel/sched/deadline.o: in function `update_curr_dl': deadline.c:(.text+0x144c): undefined reference to `atomic64_add_386' /usr/bin/ld: kernel/time/posix-cpu-timers.o: in function `cpu_clock_sample_group': posix-cpu-timers.c:(.text+0x3ba): undefined reference to `atomic64_read_386' /usr/bin/ld: posix-cpu-timers.c:(.text+0x3c6): undefined reference to `atomic64_read_386' /usr/bin/ld: posix-cpu-timers.c:(.text+0x3d4): undefined reference to `atomic64_read_386' /usr/bin/ld: posix-cpu-timers.c:(.text+0x40c): undefined reference to `atomic64_read_386' /usr/bin/ld: posix-cpu-timers.c:(.text+0x41d): undefined reference to `atomic64_read_386' /usr/bin/ld: kernel/time/posix-cpu-timers.o:posix-cpu-timers.c:(.text+0x42e): more undefined references to `atomic64_read_386' follow /usr/bin/ld: kernel/time/posix-cpu-timers.o: in function `cpu_clock_sample_group': posix-cpu-timers.c:(.text+0x4ee): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: posix-cpu-timers.c:(.text+0x508): undefined reference to `atomic64_read_386' /usr/bin/ld: posix-cpu-timers.c:(.text+0x54e): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: posix-cpu-timers.c:(.text+0x568): undefined reference to `atomic64_read_386' /usr/bin/ld: posix-cpu-timers.c:(.text+0x5ae): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: posix-cpu-timers.c:(.text+0x5c8): undefined reference to `atomic64_read_386' /usr/bin/ld: kernel/time/posix-cpu-timers.o: in function `thread_group_sample_cputime': posix-cpu-timers.c:(.text+0x1ad0): undefined reference to `atomic64_read_386' /usr/bin/ld: posix-cpu-timers.c:(.text+0x1adf): undefined reference to `atomic64_read_386' /usr/bin/ld: posix-cpu-timers.c:(.text+0x1af1): undefined reference to `atomic64_read_386' /usr/bin/ld: kernel/time/posix-cpu-timers.o: in function `run_posix_cpu_timers': posix-cpu-timers.c:(.text+0x1ccb): undefined reference to `atomic64_read_386' /usr/bin/ld: kernel/time/posix-cpu-timers.o:posix-cpu-timers.c:(.text+0x1cdc): more undefined references to `atomic64_read_386' follow /usr/bin/ld: kernel/bpf/core.o: in function `___bpf_prog_run': >> core.c:(.text+0x116c): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: core.c:(.text+0x2b29): undefined reference to `cmpxchg8b_emu' >> /usr/bin/ld: core.c:(.text+0x2ee8): undefined reference to `atomic64_add_386' >> /usr/bin/ld: core.c:(.text+0x2f90): undefined reference to `atomic64_xchg_386' /usr/bin/ld: fs/proc/task_mmu.o: in function `task_mem': task_mmu.c:(.text+0x25c5): undefined reference to `atomic64_read_386' /usr/bin/ld: fs/ext4/balloc.o: in function `ext4_has_free_clusters': balloc.c:(.text+0xb0): undefined reference to `atomic64_read_386' /usr/bin/ld: fs/ext4/dir.o: in function `ext4_dir_llseek': dir.c:(.text+0x3af): undefined reference to `atomic64_read_386' /usr/bin/ld: fs/ext4/dir.o: in function `ext4_readdir': dir.c:(.text+0x8b4): undefined reference to `atomic64_read_386' /usr/bin/ld: dir.c:(.text+0xdbe): undefined reference to `atomic64_read_386' /usr/bin/ld: dir.c:(.text+0xdf5): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: dir.c:(.text+0xf5f): undefined reference to `atomic64_read_386' /usr/bin/ld: dir.c:(.text+0xf90): undefined reference to `atomic64_read_386' /usr/bin/ld: dir.c:(.text+0xfc5): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/ext4/ialloc.o: in function `get_orlov_stats': ialloc.c:(.text+0x31): undefined reference to `atomic64_read_386' /usr/bin/ld: fs/ext4/inline.o: in function `ext4_add_dirent_to_inline.isra.0': inline.c:(.text+0x1232): undefined reference to `atomic64_read_386' /usr/bin/ld: inline.c:(.text+0x126d): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/ext4/inline.o: in function `ext4_read_inline_dir': inline.c:(.text+0x3552): undefined reference to `atomic64_read_386' /usr/bin/ld: inline.c:(.text+0x36a6): undefined reference to `atomic64_read_386' /usr/bin/ld: inline.c:(.text+0x36e5): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/ext4/inode.o: in function `ext4_do_update_inode': inode.c:(.text+0x381f): undefined reference to `atomic64_read_386' /usr/bin/ld: inode.c:(.text+0x3e18): undefined reference to `atomic64_read_386' /usr/bin/ld: fs/ext4/inode.o: in function `__ext4_iget': inode.c:(.text+0x72aa): undefined reference to `atomic64_set_386' /usr/bin/ld: inode.c:(.text+0x7a07): undefined reference to `atomic64_set_386' /usr/bin/ld: fs/ext4/inode.o: in function `ext4_mark_iloc_dirty': inode.c:(.text+0x8164): undefined reference to `atomic64_read_386' /usr/bin/ld: inode.c:(.text+0x81a5): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/ext4/inode.o: in function `ext4_setattr': inode.c:(.text+0xd389): undefined reference to `atomic64_read_386' /usr/bin/ld: inode.c:(.text+0xd3c3): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/ext4/ioctl.o: in function `swap_inode_boot_loader': ioctl.c:(.text+0x11ee): undefined reference to `atomic64_set_386' /usr/bin/ld: fs/ext4/namei.o: in function `ext4_setent': namei.c:(.text+0x268e): undefined reference to `atomic64_read_386' /usr/bin/ld: namei.c:(.text+0x26c9): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/ext4/namei.o: in function `add_dirent_to_buf': namei.c:(.text+0x4687): undefined reference to `atomic64_read_386' /usr/bin/ld: namei.c:(.text+0x46c0): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/ext4/namei.o: in function `ext4_generic_delete_entry': namei.c:(.text+0x6b4a): undefined reference to `atomic64_read_386' /usr/bin/ld: namei.c:(.text+0x6b8d): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/ext4/namei.o: in function `ext4_rmdir': namei.c:(.text+0x8dd3): undefined reference to `atomic64_read_386' /usr/bin/ld: namei.c:(.text+0x8e0b): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/ext4/resize.o: in function `ext4_flex_group_add': resize.c:(.text+0x33e9): undefined reference to `atomic64_add_386' /usr/bin/ld: fs/ext4/xattr.o: in function `ext4_xattr_inode_iget': xattr.c:(.text+0x768): undefined reference to `atomic64_set_386' /usr/bin/ld: fs/ext4/xattr.o: in function `ext4_xattr_inode_update_ref': xattr.c:(.text+0x892): undefined reference to `atomic64_read_386' /usr/bin/ld: xattr.c:(.text+0x8c6): undefined reference to `atomic64_set_386' /usr/bin/ld: fs/ext4/xattr.o: in function `ext4_xattr_inode_lookup_create': xattr.c:(.text+0x1e08): undefined reference to `atomic64_set_386' /usr/bin/ld: fs/ext2/dir.o: in function `ext2_commit_chunk': dir.c:(.text+0x28): undefined reference to `atomic64_read_386' /usr/bin/ld: dir.c:(.text+0x69): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/ext2/dir.o: in function `ext2_readdir': dir.c:(.text+0x58b): undefined reference to `atomic64_read_386' /usr/bin/ld: dir.c:(.text+0x904): undefined reference to `atomic64_read_386' /usr/bin/ld: dir.c:(.text+0x943): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/fat/dir.o: in function `fat_remove_entries': dir.c:(.text+0x34a3): undefined reference to `atomic64_read_386' /usr/bin/ld: dir.c:(.text+0x34e4): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/fat/misc.o: in function `fat_update_time': misc.c:(.text+0x93b): undefined reference to `atomic64_read_386' /usr/bin/ld: misc.c:(.text+0x98d): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/fuse/dir.o: in function `fuse_rmdir': dir.c:(.text+0x3aa): undefined reference to `atomic64_read_386' /usr/bin/ld: dir.c:(.text+0x3f8): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/fuse/dir.o: in function `fuse_rename_common': dir.c:(.text+0xbba): undefined reference to `atomic64_read_386' /usr/bin/ld: dir.c:(.text+0xc08): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: dir.c:(.text+0xc6e): undefined reference to `atomic64_read_386' /usr/bin/ld: dir.c:(.text+0xcbe): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/fuse/dir.o: in function `fuse_unlink': dir.c:(.text+0xecb): undefined reference to `atomic64_inc_return_386' /usr/bin/ld: dir.c:(.text+0xf5a): undefined reference to `atomic64_read_386' /usr/bin/ld: dir.c:(.text+0xfa8): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/fuse/dir.o: in function `fuse_dentry_revalidate': dir.c:(.text+0x1509): undefined reference to `atomic64_read_386' /usr/bin/ld: fs/fuse/dir.o: in function `fuse_do_getattr': dir.c:(.text+0x17e6): undefined reference to `atomic64_read_386' /usr/bin/ld: fs/fuse/dir.o: in function `fuse_create_open': dir.c:(.text+0x200a): undefined reference to `atomic64_read_386' /usr/bin/ld: dir.c:(.text+0x2054): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/fuse/dir.o: in function `create_new_entry.constprop.0': dir.c:(.text+0x234a): undefined reference to `atomic64_read_386' /usr/bin/ld: dir.c:(.text+0x239e): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/fuse/dir.o: in function `fuse_link': dir.c:(.text+0x24ca): undefined reference to `atomic64_inc_return_386' /usr/bin/ld: fs/fuse/dir.o: in function `fuse_lookup_name': dir.c:(.text+0x28a6): undefined reference to `atomic64_read_386' /usr/bin/ld: fs/fuse/dir.o: in function `fuse_reverse_inval_entry': dir.c:(.text+0x2e9a): undefined reference to `atomic64_read_386' /usr/bin/ld: dir.c:(.text+0x2eeb): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/fuse/file.o: in function `__fuse_copy_file_range': --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org