possible deadlock in do_io_accounting (2)

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syzbot

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Dec 24, 2019, 2:12:10 AM12/24/19

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Hello,

syzbot found the following crash on:

HEAD commit: 672481c2 Linux 4.19.91
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=14de0ac1e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=445a712574d168a6
dashboard link: https://syzkaller.appspot.com/bug?extid=6f383bcbda7b4f3bb358
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+6f383b...@syzkaller.appspotmail.com

IPv6: ADDRCONF(NETDEV_UP): tunl0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): gre0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): gretap0: link is not ready
======================================================
IPv6: ADDRCONF(NETDEV_UP): erspan0: link is not ready
WARNING: possible circular locking dependency detected
4.19.91-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.1/23635 is trying to acquire lock:
000000002b5ba073 (&sig->cred_guard_mutex){+.+.}, at:
do_io_accounting+0x1f4/0x830 fs/proc/base.c:2738

but task is already holding lock:
IPv6: ADDRCONF(NETDEV_UP): ip_vti0: link is not ready
0000000096551fdb (&p->lock){+.+.}, at: seq_read+0x71/0x1110
fs/seq_file.c:161

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #3 (&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
IPv6: ADDRCONF(NETDEV_UP): ip6_vti0: link is not ready
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
IPv6: ADDRCONF(NETDEV_UP): sit0: link is not ready
vfs_readv+0xf0/0x160 fs/read_write.c:987
IPv6: ADDRCONF(NETDEV_UP): ip6tnl0: link is not ready
kernel_readv fs/splice.c:362 [inline]
default_file_splice_read+0x478/0x970 fs/splice.c:417
do_splice_to+0x127/0x180 fs/splice.c:881
splice_direct_to_actor+0x2d3/0x970 fs/splice.c:959
do_splice_direct+0x1da/0x2a0 fs/splice.c:1068
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
IPv6: ADDRCONF(NETDEV_UP): ip6gre0: link is not ready
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
IPv6: ADDRCONF(NETDEV_UP): syz_tun: link is not ready
entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #2 (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+0x208/0x360 fs/super.c:1387
sb_start_write include/linux/fs.h:1578 [inline]
mnt_want_write+0x3f/0xc0 fs/namespace.c:360
IPv6: ADDRCONF(NETDEV_UP): ip6gretap0: link is not ready
ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:24
ovl_create_object+0xb3/0x2c0 fs/overlayfs/dir.c:600
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
ovl_create+0x28/0x30 fs/overlayfs/dir.c:631
lookup_open+0x12be/0x1ad0 fs/namei.c:3234
do_last fs/namei.c:3324 [inline]
path_openat+0x149a/0x45e0 fs/namei.c:3534
IPv6: ADDRCONF(NETDEV_UP): vcan0: link is not ready
do_filp_open+0x1a1/0x280 fs/namei.c:3564
do_sys_open+0x3fe/0x550 fs/open.c:1088
IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready
__do_sys_open fs/open.c:1106 [inline]
__se_sys_open fs/open.c:1101 [inline]
__x64_sys_open+0x7e/0xc0 fs/open.c:1101
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
8021q: adding VLAN 0 to HW filter on device bond0
entry_SYSCALL_64_after_hwframe+0x49/0xbe
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready

-> #1 (&ovl_i_mutex_dir_key[depth]){++++}:
8021q: adding VLAN 0 to HW filter on device team0
down_read+0x3b/0xb0 kernel/locking/rwsem.c:24
IPv6: ADDRCONF(NETDEV_UP): dummy0: link is not ready
inode_lock_shared include/linux/fs.h:757 [inline]
do_last fs/namei.c:3323 [inline]
path_openat+0x1e59/0x45e0 fs/namei.c:3534
IPv6: ADDRCONF(NETDEV_UP): nlmon0: link is not ready
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_execveat fs/exec.c:1894 [inline]
__do_sys_execveat fs/exec.c:1975 [inline]
__se_sys_execveat fs/exec.c:1967 [inline]
__x64_sys_execveat+0xed/0x130 fs/exec.c:1967
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #0 (&sig->cred_guard_mutex){+.+.}:
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903
__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:2738
proc_tgid_io_accounting+0x23/0x30 fs/proc/base.c:2787
caif:caif_disconnect_client(): nothing to disconnect
proc_single_show+0xf0/0x180 fs/proc/base.c:755
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+0x478/0x970 fs/splice.c:417
do_splice_to+0x127/0x180 fs/splice.c:881
splice_direct_to_actor+0x2d3/0x970 fs/splice.c:959
do_splice_direct+0x1da/0x2a0 fs/splice.c:1068
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

other info that might help us debug this:

Chain exists of:
&sig->cred_guard_mutex --> sb_writers#4 --> &p->lock

Possible unsafe locking scenario:

CPU0 CPU1
---- ----
lock(&p->lock);
lock(sb_writers#4);
lock(&p->lock);
lock(&sig->cred_guard_mutex);

*** DEADLOCK ***

1 lock held by syz-executor.1/23635:
#0: 0000000096551fdb (&p->lock){+.+.}, at: seq_read+0x71/0x1110
fs/seq_file.c:161

stack backtrace:
CPU: 1 PID: 23635 Comm: syz-executor.1 Not tainted 4.19.91-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+0x197/0x210 lib/dump_stack.c:118
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+0x2e19/0x49c0 kernel/locking/lockdep.c:3411
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903
__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:2738
proc_tgid_io_accounting+0x23/0x30 fs/proc/base.c:2787
proc_single_show+0xf0/0x180 fs/proc/base.c:755
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+0x478/0x970 fs/splice.c:417
do_splice_to+0x127/0x180 fs/splice.c:881
splice_direct_to_actor+0x2d3/0x970 fs/splice.c:959
do_splice_direct+0x1da/0x2a0 fs/splice.c:1068
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
RIP: 0033:0x45a919
Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fb36caa5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045a919
RDX: 0000000000000000 RSI: 000000000000000d RDI: 0000000000000010
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000006 R11: 0000000000000246 R12: 00007fb36caa66d4
R13: 00000000004c925e R14: 00000000004e0f88 R15: 00000000ffffffff
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
device nr0 entered promiscuous mode
kobject: 'rx-0' (00000000949d0293): kobject_cleanup, parent 00000000220ee47c
kobject: 'loop5' (00000000e762f399): kobject_uevent_env
kobject: 'rx-0' (00000000949d0293): auto cleanup 'remove' event
kobject: 'loop5' (00000000e762f399): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'rx-0' (00000000949d0293): kobject_uevent_env
kobject: 'rx-0' (00000000949d0293): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'loop1' (000000005a9ed8b9): kobject_uevent_env
kobject: 'rx-0' (00000000949d0293): auto cleanup kobject_del
kobject: 'loop1' (000000005a9ed8b9): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'rx-0' (00000000949d0293): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000b84a4fab): kobject_cleanup, parent 00000000220ee47c
kobject: 'tx-0' (00000000b84a4fab): auto cleanup 'remove' event
kobject: 'tx-0' (00000000b84a4fab): kobject_uevent_env
kobject: 'tx-0' (00000000b84a4fab): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
kobject: 'tx-0' (00000000b84a4fab): auto cleanup kobject_del
kobject: 'tx-0' (00000000b84a4fab): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000220ee47c): kobject_cleanup, parent
(null)
kobject: 'queues' (00000000220ee47c): calling ktype release
kobject: 'queues' (00000000220ee47c): kset_release
kobject: 'queues': free name
kobject: 'nr0 ' (000000003213e40b): kobject_uevent_env
kobject: 'nr0 ' (000000003213e40b): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'nr0 ' (00000000dc7ee444): kobject_cleanup, parent (null)
kobject: 'nr0 ' (00000000dc7ee444): calling ktype release
kobject: 'nr0 ' (00000000ade72ee5): kobject_cleanup, parent (null)
kobject: 'nr0 ': free name
kobject: 'nr0 ' (00000000ade72ee5): calling ktype release
kobject: 'nr0 ' (000000003213e40b): kobject_cleanup, parent (null)
kobject: 'nr0 ': free name
kobject: 'nr0 ' (000000003213e40b): calling ktype release
kobject: 'loop0' (0000000014568201): kobject_uevent_env
kobject: 'loop0' (0000000014568201): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'nr0 ': free name
kobject: 'nr0 ' (00000000006e7b6a): kobject_add_internal: parent: 'net',
set: 'devices'
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'nr0 ' (00000000006e7b6a): kobject_uevent_env
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'nr0 ' (00000000006e7b6a): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'queues' (000000002ec060c6): kobject_add_internal: parent: 'nr0 ',
set: '<NULL>'
kobject: 'loop4' (000000001ef93463): kobject_uevent_env
kobject: 'queues' (000000002ec060c6): kobject_uevent_env
kobject: 'queues' (000000002ec060c6): kobject_uevent_env: filter function
caused the event to drop!
kobject: 'loop4' (000000001ef93463): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'rx-0' (000000002dc521a1): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'rx-0' (000000002dc521a1): kobject_uevent_env
kobject: 'rx-0' (000000002dc521a1): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
audit: type=1800 audit(1577171465.458:1169): pid=23645 uid=0
auid=4294967295 ses=4294967295
subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=collect_data
cause=failed comm="syz-executor.3" name="bus" dev="sda1" ino=16712 res=0
kobject: 'tx-0' (0000000056d7133f): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'tx-0' (0000000056d7133f): kobject_uevent_env
kobject: 'tx-0' (0000000056d7133f): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
kobject: 'rx-0' (000000002dc521a1): kobject_cleanup, parent 000000002ec060c6
kobject: 'rx-0' (000000002dc521a1): auto cleanup 'remove' event
kobject: 'rx-0' (000000002dc521a1): kobject_uevent_env
kobject: 'rx-0' (000000002dc521a1): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'rx-0' (000000002dc521a1): auto cleanup kobject_del
kobject: 'rx-0' (000000002dc521a1): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (0000000056d7133f): kobject_cleanup, parent 000000002ec060c6
kobject: 'tx-0' (0000000056d7133f): auto cleanup 'remove' event
kobject: 'tx-0' (0000000056d7133f): kobject_uevent_env
kobject: 'tx-0' (0000000056d7133f): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
kobject: 'tx-0' (0000000056d7133f): auto cleanup kobject_del
kobject: 'tx-0' (0000000056d7133f): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (000000002ec060c6): kobject_cleanup, parent
(null)
kobject: 'queues' (000000002ec060c6): calling ktype release
kobject: 'queues' (000000002ec060c6): kset_release
kobject: 'queues': free name
kobject: 'nr0 ' (00000000006e7b6a): kobject_uevent_env
kobject: 'nr0 ' (00000000006e7b6a): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'nr0 ' (00000000006e7b6a): kobject_cleanup, parent (null)
kobject: 'nr0 ' (00000000006e7b6a): calling ktype release
kobject: 'nr0 ': free name
kobject: 'nr0 ' (00000000d1e35e64): kobject_add_internal: parent: 'net',
set: 'devices'
kobject: 'loop3' (000000007e58d161): kobject_uevent_env
kobject: 'loop3' (000000007e58d161): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'nr0 ' (00000000d1e35e64): kobject_uevent_env
kobject: 'nr0 ' (00000000d1e35e64): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'queues' (000000002ac65908): kobject_add_internal: parent: 'nr0 ',
set: '<NULL>'
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'queues' (000000002ac65908): kobject_uevent_env
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'queues' (000000002ac65908): kobject_uevent_env: filter function
caused the event to drop!
kobject: 'rx-0' (0000000016759fe0): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'rx-0' (0000000016759fe0): kobject_uevent_env
kobject: 'rx-0' (0000000016759fe0): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'tx-0' (00000000047dfaa1): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'tx-0' (00000000047dfaa1): kobject_uevent_env
kobject: 'tx-0' (00000000047dfaa1): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
netlink: 'syz-executor.1': attribute type 16 has an invalid length.
device lo entered promiscuous mode
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
device tunl0 entered promiscuous mode
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
device gre0 entered promiscuous mode
device gretap0 entered promiscuous mode
device erspan0 entered promiscuous mode
device ip_vti0 entered promiscuous mode
device ip6_vti0 entered promiscuous mode
device sit0 entered promiscuous mode
device ip6tnl0 entered promiscuous mode
device ip6gre0 entered promiscuous mode
device syz_tun entered promiscuous mode
device ip6gretap0 entered promiscuous mode
device bridge0 entered promiscuous mode
device vcan0 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
device bond0 entered promiscuous mode
device bond_slave_0 entered promiscuous mode
device bond_slave_1 entered promiscuous mode
device team0 entered promiscuous mode
device team_slave_0 entered promiscuous mode
device team_slave_1 entered promiscuous mode
device dummy0 entered promiscuous mode
device nlmon0 entered promiscuous mode
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
device caif0 entered promiscuous mode
net_ratelimit: 6 callbacks suppressed
A link change request failed with some changes committed already. Interface
caif0 may have been left with an inconsistent configuration, please check.
netlink: 'syz-executor.5': attribute type 16 has an invalid length.
kobject: 'nr0 ' (00000000b5d5e9d8): kobject_add_internal: parent: 'net',
set: 'devices'
kobject: 'nr0 ' (00000000b5d5e9d8): kobject_uevent_env
kobject: 'loop1' (000000005a9ed8b9): kobject_uevent_env
kobject: 'loop1' (000000005a9ed8b9): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'nr0 ' (00000000b5d5e9d8): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'loop5' (00000000e762f399): kobject_uevent_env
kobject: 'queues' (000000006907c10e): kobject_add_internal: parent: 'nr0 ',
set: '<NULL>'
kobject: 'loop5' (00000000e762f399): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'queues' (000000006907c10e): kobject_uevent_env
kobject: 'queues' (000000006907c10e): kobject_uevent_env: filter function
caused the event to drop!
kobject: 'rx-0' (00000000e6125baf): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'rx-0' (00000000e6125baf): kobject_uevent_env
kobject: 'rx-0' (00000000e6125baf): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'tx-0' (00000000847ff05a): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'tx-0' (00000000847ff05a): kobject_uevent_env
kobject: 'tx-0' (00000000847ff05a): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
device nr0 entered promiscuous mode
device nr0 entered promiscuous mode
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'rx-0' (00000000e6125baf): kobject_cleanup, parent 000000006907c10e
kobject: 'rx-0' (00000000e6125baf): auto cleanup 'remove' event
kobject: 'rx-0' (00000000e6125baf): kobject_uevent_env
kobject: 'rx-0' (00000000e6125baf): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'rx-0' (00000000e6125baf): auto cleanup kobject_del
kobject: 'rx-0' (00000000e6125baf): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000847ff05a): kobject_cleanup, parent 000000006907c10e
kobject: 'tx-0' (00000000847ff05a): auto cleanup 'remove' event
kobject: 'tx-0' (00000000847ff05a): kobject_uevent_env
kobject: 'tx-0' (00000000847ff05a): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
kobject: 'tx-0' (00000000847ff05a): auto cleanup kobject_del
kobject: 'tx-0' (00000000847ff05a): calling ktype release
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'tx-0': free name
kobject: 'queues' (000000006907c10e): kobject_cleanup, parent
(null)
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'queues' (000000006907c10e): calling ktype release
kobject: 'queues' (000000006907c10e): kset_release
kobject: 'queues': free name
kobject: 'nr0 ' (00000000b5d5e9d8): kobject_uevent_env
kobject: 'nr0 ' (00000000b5d5e9d8): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
netlink: 'syz-executor.1': attribute type 16 has an invalid length.
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface
caif0 may have been left with an inconsistent configuration, please check.
netlink: 'syz-executor.5': attribute type 16 has an invalid length.
kobject: 'rx-0' (0000000016759fe0): kobject_cleanup, parent 000000002ac65908
kobject: 'loop0' (0000000014568201): kobject_uevent_env
kobject: 'rx-0' (0000000016759fe0): auto cleanup 'remove' event
kobject: 'loop0' (0000000014568201): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'rx-0' (0000000016759fe0): kobject_uevent_env
kobject: 'loop1' (000000005a9ed8b9): kobject_uevent_env
kobject: 'rx-0' (0000000016759fe0): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'loop1' (000000005a9ed8b9): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'rx-0' (0000000016759fe0): auto cleanup kobject_del
kobject: 'loop5' (00000000e762f399): kobject_uevent_env
kobject: 'rx-0' (0000000016759fe0): calling ktype release
kobject: 'loop5' (00000000e762f399): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000047dfaa1): kobject_cleanup, parent 000000002ac65908
kobject: 'tx-0' (00000000047dfaa1): auto cleanup 'remove' event
kobject: 'tx-0' (00000000047dfaa1): kobject_uevent_env
kobject: 'tx-0' (00000000047dfaa1): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
kobject: 'tx-0' (00000000047dfaa1): auto cleanup kobject_del
kobject: 'tx-0' (00000000047dfaa1): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (000000002ac65908): kobject_cleanup, parent
(null)
kobject: 'queues' (000000002ac65908): calling ktype release
kobject: 'queues' (000000002ac65908): kset_release
kobject: 'queues': free name
kobject: 'nr0 ' (00000000d1e35e64): kobject_uevent_env
kobject: 'nr0 ' (00000000d1e35e64): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'nr0 ' (00000000b5d5e9d8): kobject_cleanup, parent (null)
netlink: 'syz-executor.1': attribute type 16 has an invalid length.
kobject: 'nr0 ' (00000000b5d5e9d8): calling ktype release
kobject: 'nr0 ': free name
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
caif:caif_disconnect_client(): nothing to disconnect
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface
caif0 may have been left with an inconsistent configuration, please check.
netlink: 'syz-executor.5': attribute type 16 has an invalid length.
IPv6: ADDRCONF(NETDEV_UP): lo: link is not ready
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
IPv6: ADDRCONF(NETDEV_UP): tunl0: link is not ready
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
IPv6: ADDRCONF(NETDEV_UP): gre0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): gretap0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): erspan0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): ip_vti0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): ip6_vti0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): sit0: link is not ready
kobject: 'loop1' (000000005a9ed8b9): kobject_uevent_env
IPv6: ADDRCONF(NETDEV_UP): ip6tnl0: link is not ready
kobject: 'loop1' (000000005a9ed8b9): fill_kobj_path: path
= '/devices/virtual/block/loop1'
IPv6: ADDRCONF(NETDEV_UP): ip6gre0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): syz_tun: link is not ready
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
IPv6: ADDRCONF(NETDEV_UP): ip6gretap0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): vcan0: link is not ready
kobject: 'loop1' (000000005a9ed8b9): kobject_uevent_env
IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready
kobject: 'loop1' (000000005a9ed8b9): fill_kobj_path: path
= '/devices/virtual/block/loop1'
8021q: adding VLAN 0 to HW filter on device bond0
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
8021q: adding VLAN 0 to HW filter on device team0
kobject: 'loop1' (000000005a9ed8b9): kobject_uevent_env
IPv6: ADDRCONF(NETDEV_UP): dummy0: link is not ready
kobject: 'loop1' (000000005a9ed8b9): fill_kobj_path: path
= '/devices/virtual/block/loop1'
IPv6: ADDRCONF(NETDEV_UP): nlmon0: link is not ready
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
A link change request failed with some changes committed already. Interface
caif0 may have been left with an inconsistent configuration, please check.
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
kobject: 'loop5' (00000000e762f399): kobject_uevent_env
kobject: 'loop5' (00000000e762f399): fill_kobj_path: path
= '/devices/virtual/block/loop5'
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
bridge0: port 3(gretap0) entered disabled state
kobject: 'nr0 ' (00000000973affae): kobject_add_internal: parent: 'net',
set: 'devices'
kobject: 'nr0 ' (00000000973affae): kobject_uevent_env
kobject: 'nr0 ' (00000000973affae): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'queues' (0000000005243d96): kobject_add_internal: parent: 'nr0 ',
set: '<NULL>'
kobject: 'queues' (0000000005243d96): kobject_uevent_env
kobject: 'queues' (0000000005243d96): kobject_uevent_env: filter function
caused the event to drop!
kobject: 'rx-0' (0000000064de6b26): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'rx-0' (0000000064de6b26): kobject_uevent_env
kobject: 'rx-0' (0000000064de6b26): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'tx-0' (00000000fbdb4727): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'tx-0' (00000000fbdb4727): kobject_uevent_env
kobject: 'tx-0' (00000000fbdb4727): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
kobject: 'rx-0' (0000000064de6b26): kobject_cleanup, parent 0000000005243d96
kobject: 'rx-0' (0000000064de6b26): auto cleanup 'remove' event
kobject: 'rx-0' (0000000064de6b26): kobject_uevent_env
kobject: 'rx-0' (0000000064de6b26): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'rx-0' (0000000064de6b26): auto cleanup kobject_del
kobject: 'rx-0' (0000000064de6b26): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000fbdb4727): kobject_cleanup, parent 0000000005243d96
kobject: 'tx-0' (00000000fbdb4727): auto cleanup 'remove' event
kobject: 'tx-0' (00000000fbdb4727): kobject_uevent_env
kobject: 'tx-0' (00000000fbdb4727): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
kobject: 'tx-0' (00000000fbdb4727): auto cleanup kobject_del
kobject: 'tx-0' (00000000fbdb4727): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (0000000005243d96): kobject_cleanup, parent
(null)
kobject: 'queues' (0000000005243d96): calling ktype release
kobject: 'queues' (0000000005243d96): kset_release
kobject: 'queues': free name
kobject: 'nr0 ' (00000000973affae): kobject_uevent_env
kobject: 'nr0 ' (00000000973affae): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'nr0 ' (00000000d1e35e64): kobject_cleanup, parent (null)
kobject: 'nr0 ' (00000000d1e35e64): calling ktype release
kobject: 'nr0 ': free name
kobject: 'loop0' (0000000014568201): kobject_uevent_env
kobject: 'nr0 ' (00000000973affae): kobject_cleanup, parent (null)
kobject: 'nr0 ' (00000000973affae): calling ktype release
kobject: 'loop0' (0000000014568201): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'nr0 ': free name
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop3' (000000007e58d161): kobject_uevent_env
kobject: 'loop3' (000000007e58d161): fill_kobj_path: path
= '/devices/virtual/block/loop3'
IPv6: ADDRCONF(NETDEV_UP): lo: link is not ready
kobject: 'loop4' (000000001ef93463): kobject_uevent_env
kobject: 'loop4' (000000001ef93463): fill_kobj_path: path
= '/devices/virtual/block/loop4'
IPv6: ADDRCONF(NETDEV_UP): tunl0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): gre0: link is not ready
kobject: 'loop1' (000000005a9ed8b9): kobject_uevent_env
IPv6: ADDRCONF(NETDEV_UP): gretap0: link is not ready
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'loop1' (000000005a9ed8b9): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
IPv6: ADDRCONF(NETDEV_UP): erspan0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): ip_vti0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): ip6_vti0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): sit0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): ip6tnl0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): ip6gre0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): syz_tun: link is not ready
IPv6: ADDRCONF(NETDEV_UP): ip6gretap0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
IPv6: ADDRCONF(NETDEV_UP): vcan0: link is not ready
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready
8021q: adding VLAN 0 to HW filter on device bond0
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
8021q: adding VLAN 0 to HW filter on device team0
kobject: 'loop1' (000000005a9ed8b9): kobject_uevent_env
IPv6: ADDRCONF(NETDEV_UP): dummy0: link is not ready
kobject: 'loop1' (000000005a9ed8b9): fill_kobj_path: path
= '/devices/virtual/block/loop1'
IPv6: ADDRCONF(NETDEV_UP): nlmon0: link is not ready
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
kobject: 'loop1' (000000005a9ed8b9): kobject_uevent_env
kobject: 'loop1' (000000005a9ed8b9): fill_kobj_path: path
= '/devices/virtual/block/loop1'
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
net_ratelimit: 6 callbacks suppressed
A link change request failed with some changes committed already. Interface
caif0 may have been left with an inconsistent configuration, please check.
kobject: 'loop1' (000000005a9ed8b9): kobject_uevent_env
protocol 88fb is buggy, dev hsr_slave_0
kobject: 'loop1' (000000005a9ed8b9): fill_kobj_path: path
= '/devices/virtual/block/loop1'
protocol 88fb is buggy, dev hsr_slave_1
kobject: 'nr0 ' (00000000a626965a): kobject_add_internal: parent: 'net',
set: 'devices'
kobject: 'nr0 ' (00000000a626965a): kobject_uevent_env
kobject: 'nr0 ' (00000000a626965a): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'queues' (00000000dd1848b1): kobject_add_internal: parent: 'nr0 ',
set: '<NULL>'
kobject: 'loop1' (000000005a9ed8b9): kobject_uevent_env
kobject: 'queues' (00000000dd1848b1): kobject_uevent_env
kobject: 'loop1' (000000005a9ed8b9): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'queues' (00000000dd1848b1): kobject_uevent_env: filter function
caused the event to drop!
kobject: 'rx-0' (0000000056a9e562): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'rx-0' (0000000056a9e562): kobject_uevent_env
kobject: 'rx-0' (0000000056a9e562): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'tx-0' (0000000045bdad9f): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'tx-0' (0000000045bdad9f): kobject_uevent_env
kobject: 'tx-0' (0000000045bdad9f): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
netlink: 'syz-executor.5': attribute type 16 has an invalid length.
kobject: 'nr0 ' (00000000feec4be9): kobject_add_internal: parent: 'net',
set: 'devices'
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'nr0 ' (00000000feec4be9): kobject_uevent_env
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'nr0 ' (00000000feec4be9): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'loop5' (00000000e762f399): kobject_uevent_env
kobject: 'queues' (0000000098e1886e): kobject_add_internal: parent: 'nr0 ',
set: '<NULL>'
kobject: 'loop5' (00000000e762f399): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'queues' (0000000098e1886e): kobject_uevent_env
kobject: 'queues' (0000000098e1886e): kobject_uevent_env: filter function
caused the event to drop!
kobject: 'rx-0' (000000003152a5e6): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'rx-0' (000000003152a5e6): kobject_uevent_env
kobject: 'rx-0' (000000003152a5e6): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'tx-0' (00000000fbb958dd): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'tx-0' (00000000fbb958dd): kobject_uevent_env
kobject: 'tx-0' (00000000fbb958dd): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
device nr0 entered promiscuous mode
device nr0 entered promiscuous mode
chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19
caif:caif_disconnect_client(): nothing to disconnect
chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT
chnl_net:chnl_net_open(): state disconnected
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
A link change request failed with some changes committed already. Interface
caif0 may have been left with an inconsistent configuration, please check.
kobject: 'loop0' (0000000014568201): kobject_uevent_env
kobject: 'loop0' (0000000014568201): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'rx-0' (0000000056a9e562): kobject_cleanup, parent 00000000dd1848b1
kobject: 'rx-0' (0000000056a9e562): auto cleanup 'remove' event
kobject: 'rx-0' (0000000056a9e562): kobject_uevent_env
kobject: 'rx-0' (0000000056a9e562): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'rx-0' (0000000056a9e562): auto cleanup kobject_del
kobject: 'rx-0' (0000000056a9e562): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (0000000045bdad9f): kobject_cleanup, parent 00000000dd1848b1
kobject: 'tx-0' (0000000045bdad9f): auto cleanup 'remove' event
kobject: 'tx-0' (0000000045bdad9f): kobject_uevent_env
kobject: 'tx-0' (0000000045bdad9f): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
kobject: 'tx-0' (0000000045bdad9f): auto cleanup kobject_del
kobject: 'tx-0' (0000000045bdad9f): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000dd1848b1): kobject_cleanup, parent
(null)
kobject: 'queues' (00000000dd1848b1): calling ktype release
kobject: 'queues' (00000000dd1848b1): kset_release
kobject: 'queues': free name
kobject: 'nr0 ' (00000000a626965a): kobject_uevent_env
kobject: 'nr0 ' (00000000a626965a): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'rx-0' (000000003152a5e6): kobject_cleanup, parent 0000000098e1886e
kobject: 'rx-0' (000000003152a5e6): auto cleanup 'remove' event
kobject: 'rx-0' (000000003152a5e6): kobject_uevent_env
kobject: 'rx-0' (000000003152a5e6): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'rx-0' (000000003152a5e6): auto cleanup kobject_del
kobject: 'rx-0' (000000003152a5e6): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000fbb958dd): kobject_cleanup, parent 0000000098e1886e
kobject: 'tx-0' (00000000fbb958dd): auto cleanup 'remove' event
kobject: 'tx-0' (00000000fbb958dd): kobject_uevent_env
protocol 88fb is buggy, dev hsr_slave_0
kobject: 'tx-0' (00000000fbb958dd): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
protocol 88fb is buggy, dev hsr_slave_1
kobject: 'tx-0' (00000000fbb958dd): auto cleanup kobject_del
kobject: 'tx-0' (00000000fbb958dd): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (0000000098e1886e): kobject_cleanup, parent
(null)
kobject: 'queues' (0000000098e1886e): calling ktype release
kobject: 'queues' (0000000098e1886e): kset_release
kobject: 'queues': free name
kobject: 'nr0 ' (00000000feec4be9): kobject_uevent_env
kobject: 'nr0 ' (00000000feec4be9): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'nr0 ' (00000000a626965a): kobject_cleanup, parent (null)
kobject: 'nr0 ' (00000000a626965a): calling ktype release
kobject: 'nr0 ': free name
kobject: 'nr0 ' (00000000feec4be9): kobject_cleanup, parent (null)
kobject: 'nr0 ' (00000000feec4be9): calling ktype release
kobject: 'nr0 ': free name
kobject: 'nr0 ' (000000000055eade): kobject_add_internal: parent: 'net',
set: 'devices'
kobject: 'nr0 ' (000000000055eade): kobject_uevent_env
kobject: 'nr0 ' (000000000055eade): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'queues' (00000000a3017f46): kobject_add_internal: parent: 'nr0 ',
set: '<NULL>'
kobject: 'queues' (00000000a3017f46): kobject_uevent_env
kobject: 'queues' (00000000a3017f46): kobject_uevent_env: filter function
caused the event to drop!
kobject: 'rx-0' (00000000dd21acf8): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'rx-0' (00000000dd21acf8): kobject_uevent_env
kobject: 'rx-0' (00000000dd21acf8): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'tx-0' (00000000f1fe007e): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'tx-0' (00000000f1fe007e): kobject_uevent_env
kobject: 'tx-0' (00000000f1fe007e): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
device nr0 entered promiscuous mode
kobject: 'nr0 ' (00000000b67706f5): kobject_add_internal: parent: 'net',
set: 'devices'
kobject: 'nr0 ' (00000000b67706f5): kobject_uevent_env
kobject: 'nr0 ' (00000000b67706f5): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'queues' (0000000024e20071): kobject_add_internal: parent: 'nr0 ',
set: '<NULL>'
kobject: 'queues' (0000000024e20071): kobject_uevent_env
kobject: 'queues' (0000000024e20071): kobject_uevent_env: filter function
caused the event to drop!
kobject: 'rx-0' (0000000093754cc9): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'rx-0' (0000000093754cc9): kobject_uevent_env
kobject: 'rx-0' (0000000093754cc9): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'tx-0' (0000000027572ed6): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'tx-0' (0000000027572ed6): kobject_uevent_env
kobject: 'tx-0' (0000000027572ed6): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
kobject: 'rx-0' (0000000093754cc9): kobject_cleanup, parent 0000000024e20071
kobject: 'rx-0' (0000000093754cc9): auto cleanup 'remove' event
kobject: 'rx-0' (0000000093754cc9): kobject_uevent_env
kobject: 'rx-0' (0000000093754cc9): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'rx-0' (0000000093754cc9): auto cleanup kobject_del
kobject: 'rx-0' (0000000093754cc9): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (0000000027572ed6): kobject_cleanup, parent 0000000024e20071
kobject: 'tx-0' (0000000027572ed6): auto cleanup 'remove' event
kobject: 'tx-0' (0000000027572ed6): kobject_uevent_env
kobject: 'tx-0' (0000000027572ed6): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
kobject: 'tx-0' (0000000027572ed6): auto cleanup kobject_del
kobject: 'tx-0' (0000000027572ed6): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (0000000024e20071): kobject_cleanup, parent
(null)
kobject: 'queues' (0000000024e20071): calling ktype release
kobject: 'queues' (0000000024e20071): kset_release
kobject: 'queues': free name
kobject: 'nr0 ' (00000000b67706f5): kobject_uevent_env
kobject: 'nr0 ' (00000000b67706f5): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'rx-0' (00000000dd21acf8): kobject_cleanup, parent 00000000a3017f46
kobject: 'rx-0' (00000000dd21acf8): auto cleanup 'remove' event
kobject: 'rx-0' (00000000dd21acf8): kobject_uevent_env
kobject: 'rx-0' (00000000dd21acf8): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'rx-0' (00000000dd21acf8): auto cleanup kobject_del
kobject: 'rx-0' (00000000dd21acf8): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000f1fe007e): kobject_cleanup, parent 00000000a3017f46
kobject: 'tx-0' (00000000f1fe007e): auto cleanup 'remove' event
kobject: 'tx-0' (00000000f1fe007e): kobject_uevent_env
kobject: 'tx-0' (00000000f1fe007e): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/tx-0'
kobject: 'tx-0' (00000000f1fe007e): auto cleanup kobject_del
kobject: 'tx-0' (00000000f1fe007e): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000a3017f46): kobject_cleanup, parent
(null)
kobject: 'queues' (00000000a3017f46): calling ktype release
kobject: 'queues' (00000000a3017f46): kset_release
kobject: 'queues': free name
kobject: 'nr0 ' (000000000055eade): kobject_uevent_env
kobject: 'nr0 ' (000000000055eade): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'nr0 ' (00000000b67706f5): kobject_cleanup, parent (null)
kobject: 'nr0 ' (00000000b67706f5): calling ktype release
kobject: 'nr0 ': free name
kobject: 'loop4' (000000001ef93463): kobject_uevent_env
kobject: 'nr0 ' (000000000055eade): kobject_cleanup, parent (null)
kobject: 'loop4' (000000001ef93463): fill_kobj_path: path
= '/devices/virtual/block/loop4'
netlink: 'syz-executor.5': attribute type 16 has an invalid length.
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'nr0 ' (000000000055eade): calling ktype release
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (000000005a9ed8b9): kobject_uevent_env
kobject: 'loop1' (000000005a9ed8b9): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'nr0 ': free name
kobject: 'loop5' (00000000e762f399): kobject_uevent_env
kobject: 'loop5' (00000000e762f399): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop3' (000000007e58d161): kobject_uevent_env
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'loop3' (000000007e58d161): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (000000005a9ed8b9): kobject_uevent_env
kobject: 'loop1' (000000005a9ed8b9): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (000000005a9ed8b9): kobject_uevent_env
kobject: 'loop1' (000000005a9ed8b9): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000245e4df2): kobject_uevent_env
kobject: 'loop2' (00000000245e4df2): fill_kobj_path: path
= '/devices/virtual/block/loop2'
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
kobject: 'loop1' (000000005a9ed8b9): kobject_uevent_env
kobject: 'loop1' (000000005a9ed8b9): fill_kobj_path: path
= '/devices/virtual/block/loop1'
bridge0: port 3(gretap0) entered disabled state
kobject: 'nr0 ' (000000008236cd64): kobject_add_internal: parent: 'net',
set: 'devices'
kobject: 'nr0 ' (000000008236cd64): kobject_uevent_env
kobject: 'nr0 ' (000000008236cd64): fill_kobj_path: path
= '/devices/virtual/net/nr0 '
kobject: 'queues' (00000000b3c7e8fc): kobject_add_internal: parent: 'nr0 ',
set: '<NULL>'
kobject: 'queues' (00000000b3c7e8fc): kobject_uevent_env
kobject: 'queues' (00000000b3c7e8fc): kobject_uevent_env: filter function
caused the event to drop!
kobject: 'rx-0' (000000007cdcca65): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'rx-0' (000000007cdcca65): kobject_uevent_env
kobject: 'rx-0' (000000007cdcca65): fill_kobj_path: path
= '/devices/virtual/net/nr0 /queues/rx-0'
kobject: 'tx-0' (00000000568eedda): kobject_add_internal: parent: 'queues',
set: 'queues'
kobject: 'tx-0' (00000000568eedda): kobject_uevent_env

---
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,

Dec 26, 2019, 8:09:10 PM12/26/19

to syzkaller...@googlegroups.com

syzbot has found a reproducer for the following crash on:

HEAD commit: 672481c2 Linux 4.19.91
git tree: linux-4.19.y

console output: https://syzkaller.appspot.com/x/log.txt?x=15b74ec1e00000

kernel config: https://syzkaller.appspot.com/x/.config?x=445a712574d168a6
dashboard link: https://syzkaller.appspot.com/bug?extid=6f383bcbda7b4f3bb358
compiler: gcc (GCC) 9.0.0 20181231 (experimental)

syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13a4f2c6e00000

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+6f383b...@syzkaller.appspotmail.com

overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
======================================================

WARNING: possible circular locking dependency detected
4.19.91-syzkaller #0 Not tainted
------------------------------------------------------

syz-executor.2/8014 is trying to acquire lock:
000000007eb10105 (&sig->cred_guard_mutex){+.+.}, at:

do_io_accounting+0x1f4/0x830 fs/proc/base.c:2738

but task is already holding lock:

0000000073b2e6f7 (&p->lock){+.+.}, at: seq_read+0x71/0x1110

fs/seq_file.c:161

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #3 (&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+0x478/0x970 fs/splice.c:417
do_splice_to+0x127/0x180 fs/splice.c:881
splice_direct_to_actor+0x2d3/0x970 fs/splice.c:959
do_splice_direct+0x1da/0x2a0 fs/splice.c:1068
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 (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+0x208/0x360 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_create_object+0xb3/0x2c0 fs/overlayfs/dir.c:600

ovl_create+0x28/0x30 fs/overlayfs/dir.c:631
lookup_open+0x12be/0x1ad0 fs/namei.c:3234
do_last fs/namei.c:3324 [inline]
path_openat+0x149a/0x45e0 fs/namei.c:3534

do_filp_open+0x1a1/0x280 fs/namei.c:3564
do_sys_open+0x3fe/0x550 fs/open.c:1088

__do_sys_open fs/open.c:1106 [inline]
__se_sys_open fs/open.c:1101 [inline]
__x64_sys_open+0x7e/0xc0 fs/open.c:1101
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293

entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #1 (&ovl_i_mutex_dir_key[depth]){++++}:

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+0x1e59/0x45e0 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

-> #0 (&sig->cred_guard_mutex){+.+.}:

lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903
__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:2738
proc_tgid_io_accounting+0x23/0x30 fs/proc/base.c:2787
proc_single_show+0xf0/0x180 fs/proc/base.c:755
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+0x478/0x970 fs/splice.c:417
do_splice_to+0x127/0x180 fs/splice.c:881
splice_direct_to_actor+0x2d3/0x970 fs/splice.c:959
do_splice_direct+0x1da/0x2a0 fs/splice.c:1068
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

other info that might help us debug this:

Chain exists of:
&sig->cred_guard_mutex --> sb_writers#4 --> &p->lock

Possible unsafe locking scenario:

CPU0 CPU1
---- ----
lock(&p->lock);
lock(sb_writers#4);
lock(&p->lock);
lock(&sig->cred_guard_mutex);

*** DEADLOCK ***

2 locks held by syz-executor.2/8014:
#0: 0000000028be6a34 (sb_writers#13){.+.+}, at: file_start_write
include/linux/fs.h:2775 [inline]
#0: 0000000028be6a34 (sb_writers#13){.+.+}, at: do_sendfile+0x9b9/0xce0
fs/read_write.c:1446
#1: 0000000073b2e6f7 (&p->lock){+.+.}, at: seq_read+0x71/0x1110
fs/seq_file.c:161

stack backtrace:
CPU: 0 PID: 8014 Comm: syz-executor.2 Not tainted 4.19.91-syzkaller #0

overlayfs: failed to resolve './file0': -2

do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a919
Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00

RSP: 002b:00007f7f3c0bac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028

RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045a919

RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000007
RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000209 R11: 0000000000000246 R12: 00007f7f3c0bb6d4

R13: 00000000004c925e R14: 00000000004e0f88 R15: 00000000ffffffff

kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop5' (000000004bbcb913): kobject_uevent_env
kobject: 'loop5' (000000004bbcb913): fill_kobj_path: path
= '/devices/virtual/block/loop5'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000d4bba028): kobject_uevent_env
kobject: 'loop2' (00000000d4bba028): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
overlayfs: filesystem on './file0' not supported as upperdir
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000a70a8792): kobject_uevent_env
kobject: 'loop1' (00000000a70a8792): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000975d0058): kobject_uevent_env
kobject: 'loop4' (00000000975d0058): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000524d5e87): kobject_uevent_env
kobject: 'loop3' (00000000524d5e87): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000118eada2): kobject_uevent_env
kobject: 'loop0' (00000000118eada2): fill_kobj_path: path
= '/devices/virtual/block/loop0'

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