possible deadlock in path_openat

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syzbot

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Jun 15, 2019, 3:08:05 AM6/15/19
to syzkaller...@googlegroups.com
Hello,

syzbot found the following crash on:

HEAD commit: 768292d0 Linux 4.19.50
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=175b3566a00000
kernel config: https://syzkaller.appspot.com/x/.config?x=51f16e11efb124be
dashboard link: https://syzkaller.appspot.com/bug?extid=3e0f3da7c22a27616691
compiler: gcc (GCC) 9.0.0 20181231 (experimental)

Unfortunately, I don't have any reproducer for this crash yet.

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+3e0f3d...@syzkaller.appspotmail.com

======================================================
WARNING: possible circular locking dependency detected
4.19.50 #22 Not tainted
------------------------------------------------------
syz-executor.2/8384 is trying to acquire lock:
0000000083d4d517 (&ovl_i_mutex_dir_key[depth]#2){++++}, at:
inode_lock_shared include/linux/fs.h:757 [inline]
0000000083d4d517 (&ovl_i_mutex_dir_key[depth]#2){++++}, at: do_last
fs/namei.c:3323 [inline]
0000000083d4d517 (&ovl_i_mutex_dir_key[depth]#2){++++}, at:
path_openat+0x1e77/0x4690 fs/namei.c:3534

but task is already holding lock:
000000003305d800 (&sig->cred_guard_mutex){+.+.}, at:
prepare_bprm_creds+0x55/0x120 fs/exec.c:1404

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (&sig->cred_guard_mutex){+.+.}:
__mutex_lock_common kernel/locking/mutex.c:925 [inline]
__mutex_lock+0xf7/0x1300 kernel/locking/mutex.c:1072
mutex_lock_killable_nested+0x16/0x20 kernel/locking/mutex.c:1102
do_io_accounting+0x1f4/0x830 fs/proc/base.c:2704
proc_tgid_io_accounting+0x23/0x30 fs/proc/base.c:2753
proc_single_show+0xf0/0x180 fs/proc/base.c:737
seq_read+0x4ca/0x1110 fs/seq_file.c:229
do_loop_readv_writev fs/read_write.c:701 [inline]
do_loop_readv_writev fs/read_write.c:688 [inline]
do_iter_read+0x490/0x640 fs/read_write.c:925
vfs_readv+0xf0/0x160 fs/read_write.c:987
kernel_readv fs/splice.c:362 [inline]
default_file_splice_read+0x478/0x890 fs/splice.c:417
do_splice_to+0x127/0x180 fs/splice.c:881
splice_direct_to_actor+0x256/0x890 fs/splice.c:953
do_splice_direct+0x1da/0x2a0 fs/splice.c:1062
do_sendfile+0x597/0xce0 fs/read_write.c:1447
__do_sys_sendfile64 fs/read_write.c:1508 [inline]
__se_sys_sendfile64 fs/read_write.c:1494 [inline]
__x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1494
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #2 (&p->lock){+.+.}:
__mutex_lock_common kernel/locking/mutex.c:925 [inline]
__mutex_lock+0xf7/0x1300 kernel/locking/mutex.c:1072
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
seq_read+0x71/0x1110 fs/seq_file.c:161
do_loop_readv_writev fs/read_write.c:701 [inline]
do_loop_readv_writev fs/read_write.c:688 [inline]
do_iter_read+0x490/0x640 fs/read_write.c:925
vfs_readv+0xf0/0x160 fs/read_write.c:987
kernel_readv fs/splice.c:362 [inline]
default_file_splice_read+0x478/0x890 fs/splice.c:417
do_splice_to+0x127/0x180 fs/splice.c:881
splice_direct_to_actor+0x256/0x890 fs/splice.c:953
do_splice_direct+0x1da/0x2a0 fs/splice.c:1062
do_sendfile+0x597/0xce0 fs/read_write.c:1447
__do_sys_sendfile64 fs/read_write.c:1508 [inline]
__se_sys_sendfile64 fs/read_write.c:1494 [inline]
__x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1494
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #1 (sb_writers#4){.+.+}:
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+0x20b/0x360 fs/super.c:1387
sb_start_write include/linux/fs.h:1578 [inline]
mnt_want_write+0x3f/0xc0 fs/namespace.c:360
ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:24
ovl_do_remove+0xf8/0xd90 fs/overlayfs/dir.c:843
ovl_rmdir+0x1b/0x20 fs/overlayfs/dir.c:893
vfs_rmdir fs/namei.c:3879 [inline]
vfs_rmdir+0x196/0x460 fs/namei.c:3858
do_rmdir+0x39e/0x420 fs/namei.c:3940
__do_sys_rmdir fs/namei.c:3958 [inline]
__se_sys_rmdir fs/namei.c:3956 [inline]
__x64_sys_rmdir+0x36/0x40 fs/namei.c:3956
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #0 (&ovl_i_mutex_dir_key[depth]#2){++++}:
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900
down_read+0x3b/0xb0 kernel/locking/rwsem.c:24
inode_lock_shared include/linux/fs.h:757 [inline]
do_last fs/namei.c:3323 [inline]
path_openat+0x1e77/0x4690 fs/namei.c:3534
do_filp_open+0x1a1/0x280 fs/namei.c:3564
do_open_execat+0x140/0x660 fs/exec.c:853
__do_execve_file.isra.0+0x15a4/0x2150 fs/exec.c:1755
do_execveat_common fs/exec.c:1866 [inline]
do_execve fs/exec.c:1883 [inline]
__do_sys_execve fs/exec.c:1964 [inline]
__se_sys_execve fs/exec.c:1959 [inline]
__x64_sys_execve+0x8f/0xc0 fs/exec.c:1959
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe

other info that might help us debug this:

Chain exists of:
&ovl_i_mutex_dir_key[depth]#2 --> &p->lock --> &sig->cred_guard_mutex

Possible unsafe locking scenario:

CPU0 CPU1
---- ----
lock(&sig->cred_guard_mutex);
lock(&p->lock);
lock(&sig->cred_guard_mutex);
lock(&ovl_i_mutex_dir_key[depth]#2);

*** DEADLOCK ***

1 lock held by syz-executor.2/8384:
#0: 000000003305d800 (&sig->cred_guard_mutex){+.+.}, at:
prepare_bprm_creds+0x55/0x120 fs/exec.c:1404

stack backtrace:
CPU: 0 PID: 8384 Comm: syz-executor.2 Not tainted 4.19.50 #22
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x172/0x1f0 lib/dump_stack.c:113
print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1221
check_prev_add kernel/locking/lockdep.c:1861 [inline]
check_prevs_add kernel/locking/lockdep.c:1974 [inline]
validate_chain kernel/locking/lockdep.c:2415 [inline]
__lock_acquire+0x2e6d/0x48f0 kernel/locking/lockdep.c:3411
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900
down_read+0x3b/0xb0 kernel/locking/rwsem.c:24
inode_lock_shared include/linux/fs.h:757 [inline]
do_last fs/namei.c:3323 [inline]
path_openat+0x1e77/0x4690 fs/namei.c:3534
do_filp_open+0x1a1/0x280 fs/namei.c:3564
do_open_execat+0x140/0x660 fs/exec.c:853
__do_execve_file.isra.0+0x15a4/0x2150 fs/exec.c:1755
do_execveat_common fs/exec.c:1866 [inline]
do_execve fs/exec.c:1883 [inline]
__do_sys_execve fs/exec.c:1964 [inline]
__se_sys_execve fs/exec.c:1959 [inline]
__x64_sys_execve+0x8f/0xc0 fs/exec.c:1959
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4592c9
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7
48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff
ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f707b5e3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004592c9
RDX: 0000000020000400 RSI: 0000000020000240 RDI: 0000000020000080
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f707b5e46d4
R13: 00000000004bf96d R14: 00000000004d1250 R15: 00000000ffffffff
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: unrecognized mount option "upperdir" or missing value
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: unrecognized mount option "upperdir" or missing value
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
overlayfs: missing 'lowerdir'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
overlayfs: missing 'lowerdir'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: unrecognized mount option "work" or missing value
overlayfs: unrecognized mount option "work" or missing value
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
overlayfs: failed to resolve './file1': -2
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: unrecognized mount option "lowy��erdir= /file1" or missing value
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: missing 'workdir'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
overlayfs: missing 'workdir'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
overlayfs: unrecognized mount option "����" or missing value
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: unrecognized mount option "����" or missing value
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: missing 'lowerdir'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: missing 'lowerdir'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: unrecognized mount option "upperUir=./file0" or missing value
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: unrecognized mount option "lowerkdir=� �i�./file1" or missing
value
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
overlayfs: unrecognized mount option "lowerkdir=� �i�./file1" or missing
value
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
overlayfs: failed to resolve './file1': -2
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: unrecognized mount option "upperdjr=./fileQÝž5 =0" or missing
value
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
overlayfs: unrecognized mount option "upperdjr=./fileQÝž5 =0" or missing
value
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: unrecognized mount option " o�upperdir=./file0" or missing value
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: unrecognized mount option " o�upperdir=./file0" or missing value
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: unrecognized mount option "upperdir5./file0" or missing value
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: unrecognized mount option "upperdir5./file0" or missing value
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (000000004d2dfb21): kobject_uevent_env
kobject: 'loop2' (000000004d2dfb21): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop0' (000000000cdba4be): kobject_uevent_env
kobject: 'loop0' (000000000cdba4be): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (000000005e268934): kobject_uevent_env
kobject: 'loop3' (000000005e268934): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): kobject_uevent_env
kobject: 'loop4' (00000000cebd16f9): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (0000000012e5a2b1): kobject_uevent_env
kobject: 'loop5' (0000000012e5a2b1): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (000000004d28f45f): kobject_uevent_env
kobject: 'loop1' (000000004d28f45f): fill_kobj_path: path
= '/devices/virtual/block/loop1'


---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.

syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

syzbot

unread,
Oct 21, 2020, 2:40:20 AM10/21/20
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:

HEAD commit: ad326970 Linux 4.19.152
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=17afe67f900000
kernel config: https://syzkaller.appspot.com/x/.config?x=19e1d59b1459bb9a
dashboard link: https://syzkaller.appspot.com/bug?extid=3e0f3da7c22a27616691
compiler: gcc (GCC) 10.1.0-syz 20200507
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17383a44500000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13244de8500000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3e0f3d...@syzkaller.appspotmail.com

overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
======================================================
WARNING: possible circular locking dependency detected
4.19.152-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor865/16874 is trying to acquire lock:
0000000005a560bc (&ovl_i_mutex_dir_key[depth]){++++}, at: inode_lock_shared include/linux/fs.h:758 [inline]
0000000005a560bc (&ovl_i_mutex_dir_key[depth]){++++}, at: do_last fs/namei.c:3326 [inline]
0000000005a560bc (&ovl_i_mutex_dir_key[depth]){++++}, at: path_openat+0x1863/0x2e90 fs/namei.c:3537

but task is already holding lock:
000000006a629202 (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds fs/exec.c:1406 [inline]
000000006a629202 (&sig->cred_guard_mutex){+.+.}, at: __do_execve_file+0x3c1/0x23c0 fs/exec.c:1749

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (&sig->cred_guard_mutex){+.+.}:
overlayfs: filesystem on './file1' not supported as upperdir
do_io_accounting fs/proc/base.c:2738 [inline]
proc_tid_io_accounting+0x184/0x2b0 fs/proc/base.c:2781
proc_single_show+0xeb/0x170 fs/proc/base.c:755
overlayfs: filesystem on './file1' not supported as upperdir
seq_read+0x4bc/0x10c0 fs/seq_file.c:229
do_loop_readv_writev fs/read_write.c:701 [inline]
do_loop_readv_writev fs/read_write.c:688 [inline]
do_iter_read+0x471/0x630 fs/read_write.c:925
overlayfs: filesystem on './file1' not supported as upperdir
vfs_readv+0xe5/0x150 fs/read_write.c:987
do_preadv fs/read_write.c:1071 [inline]
__do_sys_preadv fs/read_write.c:1121 [inline]
__se_sys_preadv fs/read_write.c:1116 [inline]
__x64_sys_preadv+0x22b/0x310 fs/read_write.c:1116
do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
overlayfs: filesystem on './file1' not supported as upperdir

-> #2 (&p->lock){+.+.}:
seq_read+0x6b/0x10c0 fs/seq_file.c:161
proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231
do_loop_readv_writev fs/read_write.c:701 [inline]
do_loop_readv_writev fs/read_write.c:688 [inline]
do_iter_read+0x471/0x630 fs/read_write.c:925
vfs_readv+0xe5/0x150 fs/read_write.c:987
kernel_readv fs/splice.c:362 [inline]
default_file_splice_read+0x457/0xa10 fs/splice.c:417
do_splice_to+0x10e/0x160 fs/splice.c:881
splice_direct_to_actor+0x2b9/0x8d0 fs/splice.c:959
do_splice_direct+0x1a7/0x270 fs/splice.c:1068
do_sendfile+0x550/0xc30 fs/read_write.c:1447
__do_sys_sendfile64 fs/read_write.c:1508 [inline]
__se_sys_sendfile64+0x147/0x160 fs/read_write.c:1494
do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #1 (sb_writers#3){.+.+}:
sb_start_write include/linux/fs.h:1579 [inline]
mnt_want_write+0x3a/0xb0 fs/namespace.c:360
ovl_create_object+0x96/0x290 fs/overlayfs/dir.c:600
lookup_open+0x86c/0x19c0 fs/namei.c:3235
do_last fs/namei.c:3327 [inline]
path_openat+0x10d6/0x2e90 fs/namei.c:3537
do_filp_open+0x18c/0x3f0 fs/namei.c:3567
do_sys_open+0x3b3/0x520 fs/open.c:1085
do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #0 (&ovl_i_mutex_dir_key[depth]){++++}:
down_read+0x36/0x80 kernel/locking/rwsem.c:24
inode_lock_shared include/linux/fs.h:758 [inline]
do_last fs/namei.c:3326 [inline]
path_openat+0x1863/0x2e90 fs/namei.c:3537
do_filp_open+0x18c/0x3f0 fs/namei.c:3567
do_open_execat+0x11d/0x5b0 fs/exec.c:853
__do_execve_file+0x1ad4/0x23c0 fs/exec.c:1757
do_execveat_common fs/exec.c:1866 [inline]
do_execveat+0x3d/0x50 fs/exec.c:1894
__do_sys_execveat fs/exec.c:1975 [inline]
__se_sys_execveat fs/exec.c:1967 [inline]
__x64_sys_execveat+0xe1/0x120 fs/exec.c:1967
do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe

other info that might help us debug this:

Chain exists of:
&ovl_i_mutex_dir_key[depth] --> &p->lock --> &sig->cred_guard_mutex

Possible unsafe locking scenario:

CPU0 CPU1
---- ----
lock(&sig->cred_guard_mutex);
lock(&p->lock);
lock(&sig->cred_guard_mutex);
lock(&ovl_i_mutex_dir_key[depth]);

*** DEADLOCK ***

1 lock held by syz-executor865/16874:
#0: 000000006a629202 (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds fs/exec.c:1406 [inline]
#0: 000000006a629202 (&sig->cred_guard_mutex){+.+.}, at: __do_execve_file+0x3c1/0x23c0 fs/exec.c:1749

stack backtrace:
CPU: 1 PID: 16874 Comm: syz-executor865 Not tainted 4.19.152-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x22c/0x33e lib/dump_stack.c:118
print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1221
check_prev_add kernel/locking/lockdep.c:1865 [inline]
check_prevs_add kernel/locking/lockdep.c:1978 [inline]
validate_chain kernel/locking/lockdep.c:2419 [inline]
__lock_acquire+0x37ad/0x3ff0 kernel/locking/lockdep.c:3415
lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3907
down_read+0x36/0x80 kernel/locking/rwsem.c:24
inode_lock_shared include/linux/fs.h:758 [inline]
do_last fs/namei.c:3326 [inline]
path_openat+0x1863/0x2e90 fs/namei.c:3537
do_filp_open+0x18c/0x3f0 fs/namei.c:3567
do_open_execat+0x11d/0x5b0 fs/exec.c:853
__do_execve_file+0x1ad4/0x23c0 fs/exec.c:1757
do_execveat_common fs/exec.c:1866 [inline]
do_execveat+0x3d/0x50 fs/exec.c:1894
__do_sys_execveat fs/exec.c:1975 [inline]
__se_sys_execveat fs/exec.c:1967 [inline]
__x64_sys_execveat+0xe1/0x120 fs/exec.c:1967
do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x44af99
Code: e8 1c e6 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb 03 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f40cfbc8d18 EFLAGS: 00000246 ORIG_RAX: 0000000000000142
RAX: ffffffffffffffda RBX: 00000000006e1c58 RCX: 000000000044af99
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 00000000ffffff9c
RBP: 00000000006e1c50 R08: 0000000000001000 R09: 68742f636f72702f
R10: 0000000020000700 R11: 0000000000000246 R12: 00000000006e1c5c
R13: 00007f40cfbc8d20 R14: 00007f40cfbc8d20 R15: 0000000000000006
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: failed to resolve './file1': -2
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: failed to resolve './file1': -2
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir
overlayfs: filesystem on './file1' not supported as upperdir

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