======================================================
WARNING: possible circular locking dependency detected
5.0.0-rc2+ #31 Not tainted
------------------------------------------------------
syz-executor2/15728 is trying to acquire lock:
00000000d414f3bd (&sig->cred_guard_mutex){+.+.}, at: do_io_accounting+0x1d1/0xfe0 fs/proc/base.c:2711

but task is already holding lock:
0000000042014107 (&p->lock){+.+.}, at: seq_read+0x71/0x1130 fs/seq_file.c:161

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #2 (&p->lock){+.+.}:
       __mutex_lock_common kernel/locking/mutex.c:925 [inline]
       __mutex_lock+0x12f/0x1670 kernel/locking/mutex.c:1072
       mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
       seq_read+0x71/0x1130 fs/seq_file.c:161
       proc_reg_read+0x29a/0x3c0 fs/proc/inode.c:229
       do_loop_readv_writev fs/read_write.c:700 [inline]
       do_loop_readv_writev fs/read_write.c:687 [inline]
       do_iter_read+0x4a9/0x660 fs/read_write.c:921
       vfs_readv+0x175/0x1c0 fs/read_write.c:983
       kernel_readv fs/splice.c:362 [inline]
       default_file_splice_read+0x50c/0xac0 fs/splice.c:417
       do_splice_to+0x12a/0x190 fs/splice.c:880
       do_splice+0xff7/0x1410 fs/splice.c:1178
       __do_sys_splice fs/splice.c:1419 [inline]
       __se_sys_splice fs/splice.c:1399 [inline]
       __x64_sys_splice+0x2c6/0x330 fs/splice.c:1399
       do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #1 (&pipe->mutex/1){+.+.}:
       __mutex_lock_common kernel/locking/mutex.c:925 [inline]
       __mutex_lock+0x12f/0x1670 kernel/locking/mutex.c:1072
       mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
       __pipe_lock fs/pipe.c:83 [inline]
       fifo_open+0x159/0xb00 fs/pipe.c:905
       do_dentry_open+0x48a/0x1210 fs/open.c:771
       vfs_open+0xa0/0xd0 fs/open.c:880
       do_last fs/namei.c:3418 [inline]
       path_openat+0x144f/0x5650 fs/namei.c:3534
       do_filp_open+0x26f/0x370 fs/namei.c:3564
       do_open_execat+0x20e/0x930 fs/exec.c:856
       __do_execve_file.isra.0+0x1966/0x2700 fs/exec.c:1758
       do_execveat_common fs/exec.c:1865 [inline]
       do_execve fs/exec.c:1882 [inline]
       __do_sys_execve fs/exec.c:1963 [inline]
       __se_sys_execve fs/exec.c:1958 [inline]
       __x64_sys_execve+0x8f/0xc0 fs/exec.c:1958
       do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #0 (&sig->cred_guard_mutex){+.+.}:
       lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841
       __mutex_lock_common kernel/locking/mutex.c:925 [inline]
       __mutex_lock+0x12f/0x1670 kernel/locking/mutex.c:1072
       mutex_lock_killable_nested+0x16/0x20 kernel/locking/mutex.c:1102
       do_io_accounting+0x1d1/0xfe0 fs/proc/base.c:2711
       proc_tgid_io_accounting+0x23/0x30 fs/proc/base.c:2760
       proc_single_show+0xf6/0x180 fs/proc/base.c:739
       traverse fs/seq_file.c:113 [inline]
       traverse+0x1d6/0x760 fs/seq_file.c:91
       seq_read+0x8f8/0x1130 fs/seq_file.c:188
       __vfs_read+0x116/0xb20 fs/read_write.c:416
       vfs_read+0x194/0x3e0 fs/read_write.c:452
       ksys_pread64+0x183/0x1c0 fs/read_write.c:626
       __do_sys_pread64 fs/read_write.c:636 [inline]
       __se_sys_pread64 fs/read_write.c:633 [inline]
       __x64_sys_pread64+0x97/0xf0 fs/read_write.c:633
       do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

other info that might help us debug this:

Chain exists of:
  &sig->cred_guard_mutex --> &pipe->mutex/1 --> &p->lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&p->lock);
                               lock(&pipe->mutex/1);
                               lock(&p->lock);
  lock(&sig->cred_guard_mutex);

 *** DEADLOCK ***

1 lock held by syz-executor2/15728:
 #0: 0000000042014107 (&p->lock){+.+.}, at: seq_read+0x71/0x1130 fs/seq_file.c:161

stack backtrace:
CPU: 0 PID: 15728 Comm: syz-executor2 Not tainted 5.0.0-rc2+ #31
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+0x1db/0x2d0 lib/dump_stack.c:113
 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1224
 check_prev_add kernel/locking/lockdep.c:1866 [inline]
 check_prevs_add kernel/locking/lockdep.c:1979 [inline]
 validate_chain kernel/locking/lockdep.c:2350 [inline]
 __lock_acquire+0x3014/0x4a30 kernel/locking/lockdep.c:3338
 lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841
 __mutex_lock_common kernel/locking/mutex.c:925 [inline]
 __mutex_lock+0x12f/0x1670 kernel/locking/mutex.c:1072
 mutex_lock_killable_nested+0x16/0x20 kernel/locking/mutex.c:1102
 do_io_accounting+0x1d1/0xfe0 fs/proc/base.c:2711
 proc_tgid_io_accounting+0x23/0x30 fs/proc/base.c:2760
 proc_single_show+0xf6/0x180 fs/proc/base.c:739
 traverse fs/seq_file.c:113 [inline]
 traverse+0x1d6/0x760 fs/seq_file.c:91
 seq_read+0x8f8/0x1130 fs/seq_file.c:188
 __vfs_read+0x116/0xb20 fs/read_write.c:416
 vfs_read+0x194/0x3e0 fs/read_write.c:452
 ksys_pread64+0x183/0x1c0 fs/read_write.c:626
 __do_sys_pread64 fs/read_write.c:636 [inline]
 __se_sys_pread64 fs/read_write.c:633 [inline]
 __x64_sys_pread64+0x97/0xf0 fs/read_write.c:633
 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458099
Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fac60078c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000011
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000458099
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000246 R12: 00007fac600796d4
R13: 00000000004c4ae7 R14: 00000000004d8158 R15: 00000000ffffffff
kobject: 'loop2' (000000003436f0e1): kobject_uevent_env
kobject: 'loop2' (000000003436f0e1): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (0000000074f30505): kobject_uevent_env
kobject: 'loop1' (0000000074f30505): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop1' (0000000074f30505): kobject_uevent_env
kobject: 'loop1' (0000000074f30505): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000958900be): kobject_uevent_env
kobject: 'loop0' (00000000958900be): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (000000003436f0e1): kobject_uevent_env
kobject: 'loop2' (000000003436f0e1): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (0000000074f30505): kobject_uevent_env
kobject: 'loop1' (0000000074f30505): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'rx-0' (0000000004e98a37): kobject_cleanup, parent 00000000f5adcb45
kobject: 'rx-0' (0000000004e98a37): auto cleanup 'remove' event
kobject: 'rx-0' (0000000004e98a37): kobject_uevent_env
kobject: 'rx-0' (0000000004e98a37): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'loop0' (00000000958900be): kobject_uevent_env
kobject: 'rx-0' (0000000004e98a37): auto cleanup kobject_del
kobject: 'loop0' (00000000958900be): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'rx-0' (0000000004e98a37): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000beaebf61): kobject_cleanup, parent 00000000f5adcb45
kobject: 'loop1' (0000000074f30505): kobject_uevent_env
kobject: 'loop1' (0000000074f30505): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'tx-0' (00000000beaebf61): auto cleanup 'remove' event
kobject: 'loop2' (000000003436f0e1): kobject_uevent_env
kobject: 'loop2' (000000003436f0e1): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'tx-0' (00000000beaebf61): kobject_uevent_env
kobject: 'tx-0' (00000000beaebf61): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'loop0' (00000000958900be): kobject_uevent_env
kobject: 'loop0' (00000000958900be): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'tx-0' (00000000beaebf61): auto cleanup kobject_del
kobject: 'tx-0' (00000000beaebf61): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000f5adcb45): kobject_cleanup, parent           (null)
kobject: 'loop1' (0000000074f30505): kobject_uevent_env
kobject: 'loop1' (0000000074f30505): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'queues' (00000000f5adcb45): calling ktype release
kobject: 'queues' (00000000f5adcb45): kset_release
kobject: 'loop2' (000000003436f0e1): kobject_uevent_env
kobject: 'queues': free name
kobject: 'loop2' (000000003436f0e1): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'ip6gre0' (00000000e33b96a9): kobject_uevent_env
kobject: 'ip6gre0' (00000000e33b96a9): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (00000000f5503747): kobject_cleanup, parent 00000000931582e9
kobject: 'rx-0' (00000000f5503747): auto cleanup 'remove' event
net_ratelimit: 24 callbacks suppressed
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
kobject: 'rx-0' (00000000f5503747): kobject_uevent_env
kobject: 'rx-0' (00000000f5503747): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'loop0' (00000000958900be): kobject_uevent_env
kobject: 'loop0' (00000000958900be): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'rx-0' (00000000f5503747): auto cleanup kobject_del
kobject: 'rx-0' (00000000f5503747): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000d17eca54): kobject_cleanup, parent 00000000931582e9
kobject: 'tx-0' (00000000d17eca54): auto cleanup 'remove' event
kobject: 'tx-0' (00000000d17eca54): kobject_uevent_env
kobject: '0:62' (00000000fc433401): kobject_add_internal: parent: 'bdi', set: 'devices'
kobject: 'tx-0' (00000000d17eca54): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'tx-0' (00000000d17eca54): auto cleanup kobject_del
kobject: 'loop1' (0000000074f30505): kobject_uevent_env
kobject: 'tx-0' (00000000d17eca54): calling ktype release
kobject: 'tx-0': free name
protocol 88fb is buggy, dev hsr_slave_0
kobject: 'queues' (00000000931582e9): kobject_cleanup, parent           (null)
protocol 88fb is buggy, dev hsr_slave_1
kobject: '0:62' (00000000fc433401): kobject_uevent_env
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
kobject: '0:62' (00000000fc433401): fill_kobj_path: path = '/devices/virtual/bdi/0:62'
kobject: 'loop1' (0000000074f30505): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'queues' (00000000931582e9): calling ktype release
kobject: 'queues' (00000000931582e9): kset_release
kobject: 'queues': free name
kobject: 'ip6gre0' (000000004ef6333c): kobject_uevent_env
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
kobject: '0:62' (00000000fc433401): kobject_uevent_env
kobject: 'ip6gre0' (000000004ef6333c): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: '0:62' (00000000fc433401): fill_kobj_path: path = '/devices/virtual/bdi/0:62'
kobject: 'loop0' (00000000958900be): kobject_uevent_env
kobject: 'loop0' (00000000958900be): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'rx-0' (0000000032c743e6): kobject_cleanup, parent 00000000610711cb
kobject: '0:62' (00000000fc433401): kobject_cleanup, parent           (null)
kobject: '0:62' (00000000fc433401): calling ktype release
kobject: 'rx-0' (0000000032c743e6): auto cleanup 'remove' event
kobject: '0:62': free name
kobject: 'rx-0' (0000000032c743e6): kobject_uevent_env
kobject: 'rx-0' (0000000032c743e6): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (0000000032c743e6): auto cleanup kobject_del
kobject: 'rx-0' (0000000032c743e6): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (000000005e20a846): kobject_cleanup, parent 00000000610711cb
kobject: 'tx-0' (000000005e20a846): auto cleanup 'remove' event
kobject: 'loop2' (000000003436f0e1): kobject_uevent_env
kobject: 'tx-0' (000000005e20a846): kobject_uevent_env
kobject: 'tx-0' (000000005e20a846): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'loop2' (000000003436f0e1): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'tx-0' (000000005e20a846): auto cleanup kobject_del
kobject: 'tx-0' (000000005e20a846): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000610711cb): kobject_cleanup, parent           (null)
kobject: 'queues' (00000000610711cb): calling ktype release
kobject: 'queues' (00000000610711cb): kset_release
kobject: 'queues': free name
kobject: 'ip6gre0' (0000000009371a1f): kobject_uevent_env
kobject: 'ip6gre0' (0000000009371a1f): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'loop1' (0000000074f30505): kobject_uevent_env
kobject: 'rx-0' (0000000000e8c9d4): kobject_cleanup, parent 0000000033157a8e
kobject: 'loop1' (0000000074f30505): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'rx-0' (0000000000e8c9d4): auto cleanup 'remove' event
kobject: 'rx-0' (0000000000e8c9d4): kobject_uevent_env
kobject: 'rx-0' (0000000000e8c9d4): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (0000000000e8c9d4): auto cleanup kobject_del
kobject: 'rx-0' (0000000000e8c9d4): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (0000000048edbeeb): kobject_cleanup, parent 0000000033157a8e
kobject: 'tx-0' (0000000048edbeeb): auto cleanup 'remove' event
kobject: 'tx-0' (0000000048edbeeb): kobject_uevent_env
kobject: 'tx-0' (0000000048edbeeb): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'tx-0' (0000000048edbeeb): auto cleanup kobject_del
kobject: 'tx-0' (0000000048edbeeb): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (0000000033157a8e): kobject_cleanup, parent           (null)
kobject: 'queues' (0000000033157a8e): calling ktype release
kobject: 'queues' (0000000033157a8e): kset_release
kobject: 'queues': free name
kobject: 'ip6gre0' (00000000a526228e): kobject_uevent_env
kobject: 'ip6gre0' (00000000a526228e): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (000000009ad38e4e): kobject_cleanup, parent 0000000005f17c2f
kobject: 'rx-0' (000000009ad38e4e): auto cleanup 'remove' event
kobject: 'rx-0' (000000009ad38e4e): kobject_uevent_env
kobject: 'rx-0' (000000009ad38e4e): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (000000009ad38e4e): auto cleanup kobject_del
kobject: 'rx-0' (000000009ad38e4e): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000a1639914): kobject_cleanup, parent 0000000005f17c2f
kobject: 'tx-0' (00000000a1639914): auto cleanup 'remove' event
kobject: 'tx-0' (00000000a1639914): kobject_uevent_env
kobject: 'tx-0' (00000000a1639914): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'tx-0' (00000000a1639914): auto cleanup kobject_del
kobject: 'tx-0' (00000000a1639914): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (0000000005f17c2f): kobject_cleanup, parent           (null)
kobject: 'queues' (0000000005f17c2f): calling ktype release
kobject: 'queues' (0000000005f17c2f): kset_release
kobject: 'queues': free name
kobject: 'ip6gre0' (00000000382b864e): kobject_uevent_env
kobject: 'ip6gre0' (00000000382b864e): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (00000000fb236e32): kobject_cleanup, parent 00000000d00af8ff
kobject: 'rx-0' (00000000fb236e32): auto cleanup 'remove' event
kobject: 'rx-0' (00000000fb236e32): kobject_uevent_env
kobject: 'rx-0' (00000000fb236e32): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (00000000fb236e32): auto cleanup kobject_del
kobject: 'rx-0' (00000000fb236e32): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000765d638d): kobject_cleanup, parent 00000000d00af8ff
kobject: 'tx-0' (00000000765d638d): auto cleanup 'remove' event
kobject: 'tx-0' (00000000765d638d): kobject_uevent_env
kobject: 'tx-0' (00000000765d638d): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'tx-0' (00000000765d638d): auto cleanup kobject_del
kobject: 'tx-0' (00000000765d638d): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000d00af8ff): kobject_cleanup, parent           (null)
kobject: 'queues' (00000000d00af8ff): calling ktype release
kobject: 'queues' (00000000d00af8ff): kset_release
kobject: 'queues': free name
kobject: 'ip6gre0' (00000000aec40c37): kobject_uevent_env
kobject: 'ip6gre0' (00000000aec40c37): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (000000007e9a0965): kobject_cleanup, parent 000000007b46ae6a
kobject: 'rx-0' (000000007e9a0965): auto cleanup 'remove' event
kobject: 'rx-0' (000000007e9a0965): kobject_uevent_env
kobject: 'rx-0' (000000007e9a0965): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (000000007e9a0965): auto cleanup kobject_del
kobject: 'rx-0' (000000007e9a0965): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (000000007e3ba845): kobject_cleanup, parent 000000007b46ae6a
kobject: 'tx-0' (000000007e3ba845): auto cleanup 'remove' event
kobject: 'tx-0' (000000007e3ba845): kobject_uevent_env
kobject: 'tx-0' (000000007e3ba845): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'tx-0' (000000007e3ba845): auto cleanup kobject_del
kobject: 'tx-0' (000000007e3ba845): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (000000007b46ae6a): kobject_cleanup, parent           (null)
kobject: 'queues' (000000007b46ae6a): calling ktype release
kobject: 'queues' (000000007b46ae6a): kset_release
kobject: 'queues': free name
kobject: 'ip6gre0' (0000000039deb54b): kobject_uevent_env
kobject: 'ip6gre0' (0000000039deb54b): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (00000000bec1b7a9): kobject_cleanup, parent 00000000e6fadaee
kobject: 'rx-0' (00000000bec1b7a9): auto cleanup 'remove' event
kobject: 'rx-0' (00000000bec1b7a9): kobject_uevent_env
kobject: 'rx-0' (00000000bec1b7a9): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (00000000bec1b7a9): auto cleanup kobject_del
kobject: 'rx-0' (00000000bec1b7a9): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000f279f416): kobject_cleanup, parent 00000000e6fadaee
kobject: 'tx-0' (00000000f279f416): auto cleanup 'remove' event
kobject: 'tx-0' (00000000f279f416): kobject_uevent_env
kobject: 'tx-0' (00000000f279f416): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'tx-0' (00000000f279f416): auto cleanup kobject_del
kobject: 'tx-0' (00000000f279f416): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000e6fadaee): kobject_cleanup, parent           (null)
kobject: 'queues' (00000000e6fadaee): calling ktype release
kobject: 'queues' (00000000e6fadaee): kset_release
kobject: 'queues': free name
kobject: 'ip6gre0' (00000000b591ba49): kobject_uevent_env
kobject: 'ip6gre0' (00000000b591ba49): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (000000003d436c7a): kobject_cleanup, parent 0000000044058f42
kobject: 'rx-0' (000000003d436c7a): auto cleanup 'remove' event
kobject: 'rx-0' (000000003d436c7a): kobject_uevent_env
kobject: 'rx-0' (000000003d436c7a): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (000000003d436c7a): auto cleanup kobject_del
kobject: 'rx-0' (000000003d436c7a): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (000000002dd8264a): kobject_cleanup, parent 0000000044058f42
kobject: 'tx-0' (000000002dd8264a): auto cleanup 'remove' event
kobject: 'tx-0' (000000002dd8264a): kobject_uevent_env
kobject: 'tx-0' (000000002dd8264a): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'tx-0' (000000002dd8264a): auto cleanup kobject_del
kobject: 'tx-0' (000000002dd8264a): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (0000000044058f42): kobject_cleanup, parent           (null)
kobject: 'queues' (0000000044058f42): calling ktype release
kobject: 'queues' (0000000044058f42): kset_release
kobject: 'queues': free name
kobject: 'ip6gre0' (000000004aff67f9): kobject_uevent_env
kobject: 'ip6gre0' (000000004aff67f9): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (00000000a4fc2673): kobject_cleanup, parent 00000000ef8a0a93
kobject: 'rx-0' (00000000a4fc2673): auto cleanup 'remove' event
kobject: 'rx-0' (00000000a4fc2673): kobject_uevent_env
kobject: 'rx-0' (00000000a4fc2673): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (00000000a4fc2673): auto cleanup kobject_del
kobject: 'rx-0' (00000000a4fc2673): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000dadc10a8): kobject_cleanup, parent 00000000ef8a0a93
kobject: 'tx-0' (00000000dadc10a8): auto cleanup 'remove' event
kobject: 'tx-0' (00000000dadc10a8): kobject_uevent_env
kobject: 'tx-0' (00000000dadc10a8): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'tx-0' (00000000dadc10a8): auto cleanup kobject_del
kobject: 'tx-0' (00000000dadc10a8): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000ef8a0a93): kobject_cleanup, parent           (null)
kobject: 'queues' (00000000ef8a0a93): calling ktype release
kobject: 'queues' (00000000ef8a0a93): kset_release
kobject: 'queues': free name
kobject: 'ip6gre0' (0000000054de59db): kobject_uevent_env
kobject: 'ip6gre0' (0000000054de59db): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'ip6gre0' (00000000e33b96a9): kobject_cleanup, parent           (null)
kobject: 'ip6gre0' (00000000e33b96a9): auto cleanup 'remove' event
kobject: 'ip6gre0' (00000000e33b96a9): kobject_uevent_env
kobject: 'ip6gre0' (00000000e33b96a9): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'ip6gre0' (00000000e33b96a9): calling ktype release
kobject: 'ip6gre0': free name
kobject: 'ip6gre0' (000000004ef6333c): kobject_cleanup, parent           (null)
kobject: 'ip6gre0' (000000004ef6333c): auto cleanup 'remove' event
kobject: 'ip6gre0' (000000004ef6333c): kobject_uevent_env
kobject: 'loop0' (00000000958900be): kobject_uevent_env
kobject: 'ip6gre0' (000000004ef6333c): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'loop0' (00000000958900be): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'ip6gre0' (000000004ef6333c): calling ktype release
kobject: 'ip6gre0': free name
kobject: 'ip6gre0' (0000000009371a1f): kobject_cleanup, parent           (null)
kobject: 'ip6gre0' (0000000009371a1f): auto cleanup 'remove' event
kobject: '0:62' (00000000e49e2311): kobject_add_internal: parent: 'bdi', set: 'devices'
kobject: 'ip6gre0' (0000000009371a1f): kobject_uevent_env
kobject: 'ip6gre0' (0000000009371a1f): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: '0:62' (00000000e49e2311): kobject_uevent_env
kobject: 'ip6gre0' (0000000009371a1f): calling ktype release
kobject: '0:62' (00000000e49e2311): fill_kobj_path: path = '/devices/virtual/bdi/0:62'
kobject: 'ip6gre0': free name
kobject: 'ip6gre0' (00000000a526228e): kobject_cleanup, parent           (null)
kobject: 'ip6gre0' (00000000a526228e): auto cleanup 'remove' event
kobject: 'loop1' (0000000074f30505): kobject_uevent_env
kobject: 'ip6gre0' (00000000a526228e): kobject_uevent_env
kobject: 'loop1' (0000000074f30505): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'ip6gre0' (00000000a526228e): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'ip6gre0' (00000000a526228e): calling ktype release
kobject: 'ip6gre0': free name
kobject: 'loop0' (00000000958900be): kobject_uevent_env
kobject: 'loop0' (00000000958900be): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'ip6gre0' (00000000382b864e): kobject_cleanup, parent           (null)
kobject: '0:62' (00000000e49e2311): kobject_uevent_env
kobject: 'ip6gre0' (00000000382b864e): auto cleanup 'remove' event
kobject: '0:62' (00000000e49e2311): fill_kobj_path: path = '/devices/virtual/bdi/0:62'
kobject: '0:62' (00000000e49e2311): kobject_cleanup, parent           (null)
kobject: '0:62' (00000000e49e2311): calling ktype release
kobject: 'ip6gre0' (00000000382b864e): kobject_uevent_env
kobject: 'ip6gre0' (00000000382b864e): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: '0:62': free name
kobject: 'ip6gre0' (00000000382b864e): calling ktype release
kobject: 'ip6gre0': free name
kobject: 'ip6gre0' (00000000aec40c37): kobject_cleanup, parent           (null)
kobject: 'ip6gre0' (00000000aec40c37): auto cleanup 'remove' event
kobject: 'ip6gre0' (00000000aec40c37): kobject_uevent_env
kobject: 'loop2' (000000003436f0e1): kobject_uevent_env
kobject: 'loop2' (000000003436f0e1): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'ip6gre0' (00000000aec40c37): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'ip6gre0' (00000000aec40c37): calling ktype release
kobject: 'ip6gre0': free name
kobject: 'ip6gre0' (0000000039deb54b): kobject_cleanup, parent           (null)
kobject: 'ip6gre0' (0000000039deb54b): auto cleanup 'remove' event
kobject: 'ip6gre0' (0000000039deb54b): kobject_uevent_env
kobject: 'loop0' (00000000958900be): kobject_uevent_env
kobject: 'loop0' (00000000958900be): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'ip6gre0' (0000000039deb54b): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'ip6gre0' (0000000039deb54b): calling ktype release
kobject: 'ip6gre0': free name
kobject: 'ip6gre0' (00000000b591ba49): kobject_cleanup, parent           (null)
kobject: 'ip6gre0' (00000000b591ba49): auto cleanup 'remove' event
kobject: 'ip6gre0' (00000000b591ba49): kobject_uevent_env
kobject: 'ip6gre0' (00000000b591ba49): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'ip6gre0' (00000000b591ba49): calling ktype release
kobject: 'loop0' (00000000958900be): kobject_uevent_env
kobject: '0:62' (00000000f493f7c8): kobject_add_internal: parent: 'bdi', set: 'devices'
kobject: 'loop0' (00000000958900be): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'ip6gre0': free name
kobject: '0:62' (00000000f493f7c8): kobject_uevent_env
kobject: 'ip6gre0' (000000004aff67f9): kobject_cleanup, parent           (null)
kobject: '0:62' (00000000f493f7c8): fill_kobj_path: path = '/devices/virtual/bdi/0:62'
kobject: 'ip6gre0' (000000004aff67f9): auto cleanup 'remove' event
kobject: 'ip6gre0' (000000004aff67f9): kobject_uevent_env
kobject: 'ip6gre0' (000000004aff67f9): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'ip6gre0' (000000004aff67f9): calling ktype release
kobject: 'ip6gre0': free name
kobject: 'ip6gre0' (0000000054de59db): kobject_cleanup, parent           (null)
kobject: 'ip6gre0' (0000000054de59db): auto cleanup 'remove' event
kobject: 'ip6gre0' (0000000054de59db): kobject_uevent_env
kobject: 'ip6gre0' (0000000054de59db): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'ip6gre0' (0000000054de59db): calling ktype release
kobject: 'ip6gre0': free name
kobject: 'rx-0' (0000000001b6f1dc): kobject_cleanup, parent 00000000f555f50a
kobject: 'rx-0' (0000000001b6f1dc): auto cleanup 'remove' event
kobject: 'rx-0' (0000000001b6f1dc): kobject_uevent_env
kobject: 'rx-0' (0000000001b6f1dc): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (0000000001b6f1dc): auto cleanup kobject_del
kobject: 'rx-0' (0000000001b6f1dc): calling ktype release
kobject: '0:62' (00000000f493f7c8): kobject_uevent_env
kobject: 'rx-0': free name
kobject: 'loop1' (0000000074f30505): kobject_uevent_env
kobject: '0:62' (00000000f493f7c8): fill_kobj_path: path = '/devices/virtual/bdi/0:62'
kobject: 'loop1' (0000000074f30505): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'tx-0' (0000000074c0913d): kobject_cleanup, parent 00000000f555f50a
kobject: '0:62' (00000000f493f7c8): kobject_cleanup, parent           (null)
kobject: 'tx-0' (0000000074c0913d): auto cleanup 'remove' event
kobject: '0:62' (00000000f493f7c8): calling ktype release
kobject: 'tx-0' (0000000074c0913d): kobject_uevent_env
kobject: '0:62': free name
kobject: 'tx-0' (0000000074c0913d): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'loop2' (000000003436f0e1): kobject_uevent_env
kobject: 'loop2' (000000003436f0e1): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'tx-0' (0000000074c0913d): auto cleanup kobject_del
kobject: 'tx-0' (0000000074c0913d): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000f555f50a): kobject_cleanup, parent           (null)
kobject: 'queues' (00000000f555f50a): calling ktype release
kobject: 'loop0' (00000000958900be): kobject_uevent_env
kobject: 'loop0' (00000000958900be): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'queues' (00000000f555f50a): kset_release
kobject: 'queues': free name
kobject: 'ip6tnl0' (000000008eb2e7bb): kobject_uevent_env
kobject: 'ip6tnl0' (000000008eb2e7bb): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (000000007e69c6d8): kobject_cleanup, parent 00000000abc972d3
kobject: 'rx-0' (000000007e69c6d8): auto cleanup 'remove' event
kobject: 'rx-0' (000000007e69c6d8): kobject_uevent_env
kobject: 'rx-0' (000000007e69c6d8): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (000000007e69c6d8): auto cleanup kobject_del
kobject: 'loop2' (000000003436f0e1): kobject_uevent_env
kobject: 'rx-0' (000000007e69c6d8): calling ktype release
kobject: 'loop2' (000000003436f0e1): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000fe2f196f): kobject_cleanup, parent 00000000abc972d3
kobject: 'tx-0' (00000000fe2f196f): auto cleanup 'remove' event
kobject: 'tx-0' (00000000fe2f196f): kobject_uevent_env
kobject: 'tx-0' (00000000fe2f196f): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'tx-0' (00000000fe2f196f): auto cleanup kobject_del
kobject: 'tx-0' (00000000fe2f196f): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000abc972d3): kobject_cleanup, parent           (null)
kobject: 'queues' (00000000abc972d3): calling ktype release
kobject: 'loop0' (00000000958900be): kobject_uevent_env
kobject: 'queues' (00000000abc972d3): kset_release
kobject: 'loop0' (00000000958900be): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'queues': free name
kobject: 'ip6tnl0' (0000000071d0027a): kobject_uevent_env
kobject: 'loop1' (0000000074f30505): kobject_uevent_env
kobject: 'ip6tnl0' (0000000071d0027a): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'loop1' (0000000074f30505): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'rx-0' (00000000a83123c0): kobject_cleanup, parent 000000002e8c91ec
kobject: 'rx-0' (00000000a83123c0): auto cleanup 'remove' event
kobject: 'rx-0' (00000000a83123c0): kobject_uevent_env
kobject: 'rx-0' (00000000a83123c0): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'loop0' (00000000958900be): kobject_uevent_env
kobject: 'loop0' (00000000958900be): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'rx-0' (00000000a83123c0): auto cleanup kobject_del
kobject: 'rx-0' (00000000a83123c0): calling ktype release
kobject: 'rx-0': free name
kobject: 'loop1' (0000000074f30505): kobject_uevent_env
kobject: 'loop1' (0000000074f30505): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'tx-0' (00000000441c0957): kobject_cleanup, parent 000000002e8c91ec
kobject: 'tx-0' (00000000441c0957): auto cleanup 'remove' event
kobject: 'loop2' (000000003436f0e1): kobject_uevent_env
kobject: 'loop2' (000000003436f0e1): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'tx-0' (00000000441c0957): kobject_uevent_env
kobject: 'tx-0' (00000000441c0957): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'tx-0' (00000000441c0957): auto cleanup kobject_del
kobject: 'loop0' (00000000958900be): kobject_uevent_env
kobject: 'loop0' (00000000958900be): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'tx-0' (00000000441c0957): calling ktype release
net_ratelimit: 26 callbacks suppressed
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
kobject: 'tx-0': free name
kobject: 'queues' (000000002e8c91ec): kobject_cleanup, parent           (null)
kobject: 'queues' (000000002e8c91ec): calling ktype release
kobject: 'queues' (000000002e8c91ec): kset_release
kobject: 'queues': free name
kobject: 'ip6tnl0' (00000000931f0ba9): kobject_uevent_env
kobject: 'ip6tnl0' (00000000931f0ba9): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'loop1' (0000000074f30505): kobject_uevent_env
kobject: 'rx-0' (0000000054a0f713): kobject_cleanup, parent 00000000255bcde4
kobject: 'loop1' (0000000074f30505): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (000000003436f0e1): kobject_uevent_env
kobject: 'rx-0' (0000000054a0f713): auto cleanup 'remove' event
kobject: 'loop2' (000000003436f0e1): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'rx-0' (0000000054a0f713): kobject_uevent_env
kobject: 'rx-0' (0000000054a0f713): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (0000000054a0f713): auto cleanup kobject_del
kobject: 'loop2' (000000003436f0e1): kobject_uevent_env
kobject: 'rx-0' (0000000054a0f713): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000b93b0782): kobject_cleanup, parent 00000000255bcde4
kobject: 'loop2' (000000003436f0e1): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'tx-0' (00000000b93b0782): auto cleanup 'remove' event
kobject: 'tx-0' (00000000b93b0782): kobject_uevent_env
kobject: 'tx-0' (00000000b93b0782): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'tx-0' (00000000b93b0782): auto cleanup kobject_del
kobject: 'tx-0' (00000000b93b0782): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000255bcde4): kobject_cleanup, parent           (null)
kobject: 'queues' (00000000255bcde4): calling ktype release
kobject: 'queues' (00000000255bcde4): kset_release
kobject: 'queues': free name
kobject: 'loop2' (000000003436f0e1): kobject_uevent_env
kobject: '0:57' (000000002dcd2177): kobject_uevent_env
kobject: 'ip6tnl0' (00000000c5982448): kobject_uevent_env
kobject: 'loop2' (000000003436f0e1): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: '0:57' (000000002dcd2177): fill_kobj_path: path = '/devices/virtual/bdi/0:57'
kobject: 'ip6tnl0' (00000000c5982448): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (000000008fd70228): kobject_cleanup, parent 00000000640d81e7
kobject: 'kvm' (00000000a8008315): kobject_uevent_env
kobject: '0:57' (000000002dcd2177): kobject_cleanup, parent           (null)
kobject: 'rx-0' (000000008fd70228): auto cleanup 'remove' event
kobject: '0:57' (000000002dcd2177): calling ktype release
kobject: 'rx-0' (000000008fd70228): kobject_uevent_env
kobject: '0:57': free name
kobject: 'kvm' (00000000a8008315): kobject_uevent_env
kobject: 'rx-0' (000000008fd70228): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'rx-0' (000000008fd70228): auto cleanup kobject_del
kobject: 'rx-0' (000000008fd70228): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000c61c1838): kobject_cleanup, parent 00000000640d81e7
kobject: 'kvm' (00000000a8008315): kobject_uevent_env
kobject: 'tx-0' (00000000c61c1838): auto cleanup 'remove' event
kobject: 'tx-0' (00000000c61c1838): kobject_uevent_env
kobject: 'tx-0' (00000000c61c1838): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'tx-0' (00000000c61c1838): auto cleanup kobject_del
kobject: 'tx-0' (00000000c61c1838): calling ktype release
kobject: 'kvm' (00000000a8008315): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'tx-0': free name
kobject: 'queues' (00000000640d81e7): kobject_cleanup, parent           (null)
kobject: 'queues' (00000000640d81e7): calling ktype release
kobject: 'queues' (00000000640d81e7): kset_release