overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: maximum fs stacking depth exceeded overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir ====================================================== WARNING: possible circular locking dependency detected 4.14.193-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.1/8340 is trying to acquire lock: (&ovl_i_mutex_dir_key[depth]){++++}, at: [] iterate_dir+0x387/0x5e0 fs/readdir.c:43 but task is already holding lock: (sb_writers#3){.+.+}, at: [] sb_start_write include/linux/fs.h:1549 [inline] (sb_writers#3){.+.+}, at: [] mnt_want_write+0x3a/0xb0 fs/namespace.c:386 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (sb_writers#3){.+.+}: percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x19a/0x2e0 fs/super.c:1363 sb_start_write include/linux/fs.h:1549 [inline] mnt_want_write+0x3a/0xb0 fs/namespace.c:386 ovl_create_object+0x75/0x1d0 fs/overlayfs/dir.c:538 lookup_open+0x77a/0x1750 fs/namei.c:3241 do_last fs/namei.c:3334 [inline] path_openat+0xe08/0x2970 fs/namei.c:3569 do_filp_open+0x179/0x3c0 fs/namei.c:3603 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb overlayfs: filesystem on './bus' not supported as upperdir -> #0 (&ovl_i_mutex_dir_key[depth]){++++}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 down_write_killable+0x37/0xb0 kernel/locking/rwsem.c:68 iterate_dir+0x387/0x5e0 fs/readdir.c:43 ovl_dir_read fs/overlayfs/readdir.c:306 [inline] ovl_dir_read_merged+0x2c5/0x430 fs/overlayfs/readdir.c:365 overlayfs: 'file0' not a directory ovl_check_empty_dir+0x6e/0x200 fs/overlayfs/readdir.c:870 ovl_check_empty_and_clear+0x72/0xe0 fs/overlayfs/dir.c:306 ovl_remove_and_whiteout fs/overlayfs/dir.c:647 [inline] ovl_do_remove+0x563/0xaf0 fs/overlayfs/dir.c:775 vfs_rmdir.part.0+0x144/0x390 fs/namei.c:3908 vfs_rmdir fs/namei.c:3893 [inline] do_rmdir+0x334/0x3c0 fs/namei.c:3968 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(sb_writers#3); lock(&ovl_i_mutex_dir_key[depth]); lock(sb_writers#3); lock(&ovl_i_mutex_dir_key[depth]); *** DEADLOCK *** 4 locks held by syz-executor.1/8340: #0: (sb_writers#16){.+.+}, at: [] sb_start_write include/linux/fs.h:1549 [inline] #0: (sb_writers#16){.+.+}, at: [] mnt_want_write+0x3a/0xb0 fs/namespace.c:386 #1: (&ovl_i_mutex_dir_key[depth]#2/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:754 [inline] #1: (&ovl_i_mutex_dir_key[depth]#2/1){+.+.}, at: [] do_rmdir+0x1de/0x3c0 fs/namei.c:3956 #2: overlayfs: filesystem on './file1' not supported as upperdir (&ovl_i_mutex_dir_key[depth]#2){++++}, at: [] inode_lock include/linux/fs.h:719 [inline] (&ovl_i_mutex_dir_key[depth]#2){++++}, at: [] vfs_rmdir.part.0+0x5c/0x390 fs/namei.c:3897 #3: (sb_writers#3){.+.+}, at: [] sb_start_write include/linux/fs.h:1549 [inline] #3: (sb_writers#3){.+.+}, at: [] mnt_want_write+0x3a/0xb0 fs/namespace.c:386 stack backtrace: CPU: 0 PID: 8340 Comm: syz-executor.1 Not tainted 4.14.193-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 overlayfs: filesystem on './bus' not supported as upperdir down_write_killable+0x37/0xb0 kernel/locking/rwsem.c:68 iterate_dir+0x387/0x5e0 fs/readdir.c:43 overlayfs: filesystem on './bus' not supported as upperdir ovl_dir_read fs/overlayfs/readdir.c:306 [inline] ovl_dir_read_merged+0x2c5/0x430 fs/overlayfs/readdir.c:365 overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory ovl_check_empty_dir+0x6e/0x200 fs/overlayfs/readdir.c:870 overlayfs: 'file0' not a directory ovl_check_empty_and_clear+0x72/0xe0 fs/overlayfs/dir.c:306 ovl_remove_and_whiteout fs/overlayfs/dir.c:647 [inline] ovl_do_remove+0x563/0xaf0 fs/overlayfs/dir.c:775 vfs_rmdir.part.0+0x144/0x390 fs/namei.c:3908 vfs_rmdir fs/namei.c:3893 [inline] do_rmdir+0x334/0x3c0 fs/namei.c:3968 overlayfs: filesystem on './file1' not supported as upperdir do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb overlayfs: fs on '.' does not support file handles, falling back to index=off. RIP: 0033:0x45d239 RSP: 002b:00007f4aeb2afc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000054 RAX: ffffffffffffffda RBX: 00000000000260c0 RCX: 000000000045d239 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000580 RBP: 000000000118d0b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118d08c R13: 00007fffaafcb6bf R14: 00007f4aeb2b09c0 R15: 000000000118d08c overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir kauditd_printk_skb: 125 callbacks suppressed audit: type=1800 audit(1597416957.247:225): pid=8383 uid=0 auid=0 ses=5 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.2" name="file0" dev="sda1" ino=16016 res=0 overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: failed to resolve 'file0': -2 overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory audit: type=1800 audit(1597416957.297:226): pid=8372 uid=0 auid=0 ses=5 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="file0" dev="sda1" ino=16038 res=0 overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir audit: type=1800 audit(1597416957.297:227): pid=8374 uid=0 auid=0 ses=5 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name="file0" dev="sda1" ino=16055 res=0 overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir audit: type=1800 audit(1597416957.307:228): pid=8390 uid=0 auid=0 ses=5 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.4" name="file0" dev="sda1" ino=16074 res=0 overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: failed to resolve 'file0': -2 overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: failed to resolve 'file0': -2 overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. audit: type=1800 audit(1597416957.427:229): pid=8397 uid=0 auid=0 ses=5 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.4" name="file0" dev="sda1" ino=15806 res=0 overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. audit: type=1800 audit(1597416957.427:230): pid=8398 uid=0 auid=0 ses=5 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name="file0" dev="sda1" ino=15894 res=0 overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory audit: type=1800 audit(1597416957.437:231): pid=8405 uid=0 auid=0 ses=5 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="file0" dev="sda1" ino=16044 res=0 overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. audit: type=1800 audit(1597416957.477:232): pid=8403 uid=0 auid=0 ses=5 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.1" name="file0" dev="sda1" ino=15750 res=0 overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. audit: type=1800 audit(1597416957.567:233): pid=8414 uid=0 auid=0 ses=5 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name="file0" dev="sda1" ino=16051 res=0 overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir audit: type=1800 audit(1597416957.577:234): pid=8407 uid=0 auid=0 ses=5 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="file0" dev="sda1" ino=16055 res=0 overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './file1' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: failed to resolve 'file0': -2 overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: filesystem on './file1' not supported as upperdir overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: 'file0' not a directory overlayfs: fs on '.' does not support file handles, falling back to index=off. overlayfs: 'file0' not a directory