======================================
| [ 17.852803][ T300] #0: ffffffffaade7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6909)
| [ 17.853094][ T300] #1: ffffffffaadd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain (kernel/notifier.c:380 kernel/notifier.c:368)
| [   17.853434][  T300]
| [   17.853434][  T300] stack backtrace:
[   17.853880][  T300] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.854082][  T300] Call Trace:
[   17.854203][  T300]  <TASK>
[ 17.854287][ T300] dump_stack_lvl (lib/dump_stack.c:123)
[ 17.854459][ T300] print_circular_bug (kernel/locking/lockdep.c:2077)
[ 17.854624][ T300] check_noncircular (kernel/locking/lockdep.c:2206)
[ 17.854785][ T300] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2182)
[ 17.854974][ T300] ? alloc_chain_hlocks (kernel/locking/lockdep.c:3528)
[ 17.855149][ T300] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 17.855317][ T300] check_prev_add (kernel/locking/lockdep.c:3162)
[ 17.855482][ T300] validate_chain (kernel/locking/lockdep.c:3281 kernel/locking/lockdep.c:3904)
[ 17.855656][ T300] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860)
[ 17.855818][ T300] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 17.855985][ T300] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 17.856109][ T300] __lock_acquire (kernel/locking/lockdep.c:5226)
[ 17.856280][ T300] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851)
[ 17.856442][ T300] ? team_port_change_check (drivers/net/team/team_core.c:2939 drivers/net/team/team_core.c:2962)
[ 17.856607][ T300] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 17.856728][ T300] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 17.856887][ T300] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 17.857049][ T300] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 17.857237][ T300] ? team_port_change_check (drivers/net/team/team_core.c:2939 drivers/net/team/team_core.c:2962)
[ 17.857404][ T300] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:735)
[ 17.857562][ T300] ? team_port_change_check (drivers/net/team/team_core.c:2939 drivers/net/team/team_core.c:2962)
[ 17.857723][ T300] ? team_port_change_check (drivers/net/team/team_core.c:2939 drivers/net/team/team_core.c:2962)
[ 17.857884][ T300] ? __pfx___mutex_lock (kernel/locking/mutex.c:734)
[ 17.858050][ T300] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851)
[ 17.858214][ T300] ? blocking_notifier_call_chain (kernel/notifier.c:380 kernel/notifier.c:368)
[ 17.858429][ T300] ? ref_tracker_free (lib/ref_tracker.c:272)
[ 17.858606][ T300] ? __pfx_fib_sync_up (net/ipv4/fib_semantics.c:2111)
[ 17.858769][ T300] ? __pfx_rwsem_read_trylock (kernel/locking/rwsem.c:249)
[ 17.858920][ T300] ? team_port_change_check (drivers/net/team/team_core.c:2939 drivers/net/team/team_core.c:2962)
[ 17.859068][ T300] team_port_change_check (drivers/net/team/team_core.c:2939 drivers/net/team/team_core.c:2962)
[ 17.859223][ T300] team_device_event (drivers/net/team/team_core.c:3017)
[ 17.859375][ T300] ? trace_notifier_run (./include/trace/events/notifier.h:59 (discriminator 37))
[ 17.859523][ T300] notifier_call_chain (kernel/notifier.c:85 (discriminator 2))
[ 17.859679][ T300] blocking_notifier_call_chain (kernel/notifier.c:381 kernel/notifier.c:368)
[ 17.859826][ T300] netdev_state_change (net/core/dev.c:1381 net/core/dev.c:1372)
[ 17.859973][ T300] ? __pfx_netdev_state_change (net/core/dev.c:1373)
[ 17.860135][ T300] ? __pfx_dev_activate (net/sched/sch_generic.c:1248)
[ 17.860291][ T300] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 17.860492][ T300] linkwatch_do_dev (net/core/link_watch.c:182)
[ 17.860652][ T300] rtnl_getlink (net/core/rtnetlink.c:4130)
[ 17.860812][ T300] ? __pfx_rtnl_getlink (net/core/rtnetlink.c:4075)
[ 17.860998][ T300] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:735)
[ 17.861164][ T300] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6909)
[ 17.861324][ T300] ? __pfx___mutex_lock (kernel/locking/mutex.c:734)
[ 17.861482][ T300] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 17.861633][ T300] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6906)
[ 17.861787][ T300] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 17.861945][ T300] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 17.862122][ T300] rtnetlink_rcv_msg (net/core/rtnetlink.c:6911)
[ 17.862283][ T300] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805)
[ 17.862443][ T300] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 17.862602][ T300] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3))
[ 17.862725][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5226)
[ 17.862887][ T300] netlink_rcv_skb (net/netlink/af_netlink.c:2543)
[ 17.863048][ T300] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805)
[ 17.863212][ T300] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520)
[ 17.863387][ T300] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340)
[ 17.863549][ T300] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333)
[ 17.863713][ T300] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348)
[ 17.863876][ T300] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333)
[ 17.864039][ T300] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 17.864193][ T300] netlink_sendmsg (net/netlink/af_netlink.c:1892)
[ 17.864349][ T300] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811)
[ 17.864496][ T300] ____sys_sendmsg (net/socket.c:711 net/socket.c:726 net/socket.c:2594)
[ 17.864644][ T300] ? __pfx_____sys_sendmsg (net/socket.c:2540)
[ 17.864800][ T300] ? __pfx_copy_msghdr_from_user (net/socket.c:2520)
[ 17.864989][ T300] ___sys_sendmsg (net/socket.c:2650)
[ 17.865135][ T300] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 17.865284][ T300] ? __pfx____sys_sendmsg (net/socket.c:2637)
[ 17.865439][ T300] ? usage_skip (kernel/locking/lockdep.c:2284)
[ 17.865586][ T300] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1340)
[ 17.865735][ T300] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1340)
[ 17.865885][ T300] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 17.866034][ T300] ? __lock_release (kernel/locking/lockdep.c:5525)
[ 17.866184][ T300] __sys_sendmsg (net/socket.c:2680)
[ 17.866336][ T300] ? __pfx___sys_sendmsg (net/socket.c:2665)
[ 17.866499][ T300] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1340)
[ 17.866670][ T300] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 17.866828][ T300] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   17.867038][  T300] RIP: 0033:0x7f7e9e7b39a7
[ 17.867235][ T300] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0a 00                	or     (%rax),%al
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   17.867774][  T300] RSP: 002b:00007ffd0fb7f248 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   17.867998][  T300] RAX: ffffffffffffffda RBX: 000000002b4dc320 RCX: 00007f7e9e7b39a7
[   17.868219][  T300] RDX: 0000000000000000 RSI: 00007ffd0fb7f280 RDI: 0000000000000005
[   17.868440][  T300] RBP: 000000002b4dc230 R08: 0000000000000008 R09: 0000000000000000
[   17.868666][  T300] R10: 0000000000000400 R11: 0000000000000246 R12: 000000002b5035e0


Finger prints:
print_circular_bug:check_noncircular:check_prev_add:validate_chain:__lock_acquire