tree: https://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux.git misc-next head: e94fda2a13e93bbeae458d9815a1610d6438ba33 commit: beffbc19524a06910b0c59daa97570b8e94c4efc [2/7] btrfs: fix exhaustion of the system chunk array due to concurrent allocations config: um-randconfig-p001-20210421 (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/fdmanana/linux.git/commit... git remote add fdmanana https://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux.git git fetch --no-tags fdmanana misc-next git checkout beffbc19524a06910b0c59daa97570b8e94c4efc # save the attached .config to linux build tree make W=1 W=1 ARCH=um If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): /usr/bin/ld: fs/ext4/inode.o: in function `ext4_setattr': inode.c:(.text+0xe1cb): undefined reference to `atomic64_read_386' /usr/bin/ld: inode.c:(.text+0xe203): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/ext4/ioctl.o: in function `swap_inode_boot_loader': ioctl.c:(.text+0x153b): undefined reference to `atomic64_set_386' /usr/bin/ld: fs/ext4/namei.o: in function `ext4_setent': namei.c:(.text+0x2259): undefined reference to `atomic64_read_386' /usr/bin/ld: namei.c:(.text+0x2291): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/ext4/namei.o: in function `add_dirent_to_buf': namei.c:(.text+0x3f4e): undefined reference to `atomic64_read_386' /usr/bin/ld: namei.c:(.text+0x3f86): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/ext4/namei.o: in function `ext4_generic_delete_entry': namei.c:(.text+0x5feb): undefined reference to `atomic64_read_386' /usr/bin/ld: namei.c:(.text+0x6023): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/ext4/namei.o: in function `ext4_rmdir': namei.c:(.text+0x83f1): undefined reference to `atomic64_read_386' /usr/bin/ld: namei.c:(.text+0x8429): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/ext4/resize.o: in function `ext4_update_super.isra.0': resize.c:(.text+0x1e74): undefined reference to `atomic64_add_386' /usr/bin/ld: fs/ext4/xattr.o: in function `ext4_xattr_inode_iget': xattr.c:(.text+0x7c7): undefined reference to `atomic64_set_386' /usr/bin/ld: fs/ext4/xattr.o: in function `ext4_xattr_inode_update_ref': xattr.c:(.text+0x876): undefined reference to `atomic64_read_386' /usr/bin/ld: xattr.c:(.text+0x89f): undefined reference to `atomic64_set_386' /usr/bin/ld: fs/ext4/xattr.o: in function `ext4_xattr_inode_lookup_create': xattr.c:(.text+0x1cda): undefined reference to `atomic64_set_386' /usr/bin/ld: fs/fat/dir.o: in function `fat_remove_entries': (.text+0xa76): undefined reference to `atomic64_read_386' /usr/bin/ld: (.text+0xaae): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/fat/misc.o: in function `fat_update_time': (.text+0x3c9): undefined reference to `atomic64_read_386' /usr/bin/ld: (.text+0x40e): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/btrfs/transaction.o: in function `join_transaction': transaction.c:(.text+0x1094): undefined reference to `atomic64_set_386' /usr/bin/ld: transaction.c:(.text+0x11a9): undefined reference to `atomic64_set_386' /usr/bin/ld: fs/btrfs/transaction.o: in function `btrfs_trans_release_chunk_metadata': transaction.c:(.text+0x1689): undefined reference to `atomic64_sub_386' /usr/bin/ld: fs/btrfs/xattr.o: in function `btrfs_xattr_handler_set_prop': xattr.c:(.text+0xc2): undefined reference to `atomic64_read_386' /usr/bin/ld: xattr.c:(.text+0xfa): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/btrfs/xattr.o: in function `btrfs_setxattr_trans': xattr.c:(.text+0x9d0): undefined reference to `atomic64_read_386' /usr/bin/ld: xattr.c:(.text+0xa08): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/btrfs/volumes.o: in function `create_chunk': volumes.c:(.text+0x2266): undefined reference to `atomic64_sub_386' /usr/bin/ld: fs/btrfs/volumes.o: in function `btrfs_remove_chunk': volumes.c:(.text+0x50ee): undefined reference to `atomic64_add_386' /usr/bin/ld: fs/btrfs/volumes.o: in function `btrfs_shrink_device': volumes.c:(.text+0x7be0): undefined reference to `atomic64_sub_386' /usr/bin/ld: volumes.c:(.text+0x7e2d): undefined reference to `atomic64_add_386' /usr/bin/ld: fs/btrfs/volumes.o: in function `btrfs_init_new_device': volumes.c:(.text+0xdb61): undefined reference to `atomic64_add_386' /usr/bin/ld: volumes.c:(.text+0xe481): undefined reference to `atomic64_sub_386' /usr/bin/ld: fs/btrfs/volumes.o: in function `read_one_dev': volumes.c:(.text+0xee5d): undefined reference to `atomic64_add_386' /usr/bin/ld: fs/btrfs/ioctl.o: in function `btrfs_ioctl_setflags': ioctl.c:(.text+0x75cf): undefined reference to `atomic64_read_386' /usr/bin/ld: ioctl.c:(.text+0x7608): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/btrfs/ioctl.o: in function `btrfs_ioctl': ioctl.c:(.text+0x8f3a): undefined reference to `atomic64_read_386' /usr/bin/ld: ioctl.c:(.text+0x8f88): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/btrfs/tree-log.o: in function `fill_inode_item': tree-log.c:(.text+0x1858): undefined reference to `atomic64_read_386' /usr/bin/ld: fs/btrfs/free-space-cache.o: in function `btrfs_find_space_for_alloc': free-space-cache.c:(.text+0x7b4e): undefined reference to `atomic64_add_386' /usr/bin/ld: free-space-cache.c:(.text+0x7d33): undefined reference to `atomic64_add_386' /usr/bin/ld: fs/btrfs/free-space-cache.o: in function `btrfs_alloc_from_cluster': free-space-cache.c:(.text+0x82ec): undefined reference to `atomic64_add_386' /usr/bin/ld: fs/btrfs/scrub.o: in function `scrub_repair_page_from_good_copy': scrub.c:(.text+0x75c): undefined reference to `atomic64_inc_386' /usr/bin/ld: fs/btrfs/scrub.o: in function `scrub_write_block_to_dev_replace': scrub.c:(.text+0x1cc0): undefined reference to `atomic64_inc_386' /usr/bin/ld: fs/btrfs/scrub.o: in function `scrub_wr_bio_end_io_worker': scrub.c:(.text+0x2ee1): undefined reference to `atomic64_inc_386' /usr/bin/ld: fs/btrfs/scrub.o: in function `scrub_enumerate_chunks': scrub.c:(.text+0x7063): undefined reference to `atomic64_read_386' /usr/bin/ld: fs/btrfs/scrub.o: in function `scrub_handle_errored_block': scrub.c:(.text+0x7ce9): undefined reference to `atomic64_inc_386' /usr/bin/ld: fs/btrfs/dev-replace.o: in function `btrfs_dev_replace_start': dev-replace.c:(.text+0xe8d): undefined reference to `atomic64_set_386' /usr/bin/ld: dev-replace.c:(.text+0xe9d): undefined reference to `atomic64_set_386' /usr/bin/ld: fs/btrfs/dev-replace.o: in function `btrfs_init_dev_replace': dev-replace.c:(.text+0x1708): undefined reference to `atomic64_set_386' /usr/bin/ld: dev-replace.c:(.text+0x1713): undefined reference to `atomic64_set_386' /usr/bin/ld: dev-replace.c:(.text+0x1880): undefined reference to `atomic64_set_386' /usr/bin/ld: fs/btrfs/dev-replace.o:dev-replace.c:(.text+0x189f): more undefined references to `atomic64_set_386' follow /usr/bin/ld: fs/btrfs/dev-replace.o: in function `btrfs_run_dev_replace': dev-replace.c:(.text+0x1d0a): undefined reference to `atomic64_read_386' /usr/bin/ld: dev-replace.c:(.text+0x1d25): undefined reference to `atomic64_read_386' /usr/bin/ld: fs/btrfs/dev-replace.o: in function `btrfs_dev_replace_status': dev-replace.c:(.text+0x2118): undefined reference to `atomic64_read_386' /usr/bin/ld: dev-replace.c:(.text+0x2129): undefined reference to `atomic64_read_386' /usr/bin/ld: fs/btrfs/space-info.o: in function `calc_available_free_space': space-info.c:(.text+0x44): undefined reference to `atomic64_read_386' /usr/bin/ld: fs/btrfs/block-group.o: in function `check_system_chunk': block-group.c:(.text+0x6e43): undefined reference to `atomic64_add_386' /usr/bin/ld: block-group.c:(.text+0x6e98): undefined reference to `atomic64_read_386' /usr/bin/ld: block-group.c:(.text+0x6ee6): undefined reference to `atomic64_read_386' /usr/bin/ld: block-group.c:(.text+0x6f57): undefined reference to `atomic64_read_386' /usr/bin/ld: fs/btrfs/discard.o: in function `btrfs_discard_calc_delay': /usr/bin/ld: fs/btrfs/discard.o: in function `btrfs_discard_update_discardable': discard.c:(.text+0xfaa): undefined reference to `atomic64_add_386' /usr/bin/ld: fs/btrfs/discard.o: in function `btrfs_discard_init': discard.c:(.text+0x1260): undefined reference to `atomic64_set_386' /usr/bin/ld: discard.c:(.text+0x12cf): undefined reference to `atomic64_set_386' /usr/bin/ld: fs/btrfs/reflink.o: in function `clone_finish_inode_update': reflink.c:(.text+0x19b): undefined reference to `atomic64_read_386' /usr/bin/ld: reflink.c:(.text+0x1d3): undefined reference to `cmpxchg8b_emu' /usr/bin/ld: fs/btrfs/tree-mod-log.o: in function `tree_mod_log_insert': tree-mod-log.c:(.text+0x27d): undefined reference to `atomic64_inc_return_386' /usr/bin/ld: fs/btrfs/tree-mod-log.o: in function `btrfs_get_tree_mod_seq': tree-mod-log.c:(.text+0x72b): undefined reference to `atomic64_inc_return_386' /usr/bin/ld: fs/f2fs/file.o: in function `reserve_compress_blocks': file.c:(.text+0x14f0): undefined reference to `atomic64_add_386' /usr/bin/ld: fs/f2fs/file.o: in function `f2fs_release_compress_blocks': file.c:(.text+0x5f78): undefined reference to `atomic64_sub_386' /usr/bin/ld: fs/f2fs/file.o: in function `f2fs_truncate_data_blocks_range': file.c:(.text+0x7768): undefined reference to `atomic64_sub_386' /usr/bin/ld: file.c:(.text+0x7962): undefined reference to `atomic64_sub_386' /usr/bin/ld: fs/f2fs/inode.o: in function `do_read_inode': inode.c:(.text+0xef4): undefined reference to `atomic64_add_386' /usr/bin/ld: fs/f2fs/inode.o: in function `f2fs_evict_inode': inode.c:(.text+0x276e): undefined reference to `atomic64_sub_386' /usr/bin/ld: drivers/dma-buf/dma-fence.o: in function `dma_fence_context_alloc': (.text+0x38d): undefined reference to `cmpxchg8b_emu' collect2: error: ld returned 1 exit status --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org