======================================
| [ 895.073358][ T9748] #0: ffffffffaa40ae48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) 
| [ 895.073652][ T9748] #1: ffff88800ee6ad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave (drivers/net/team/team_core.c:1988) 
| [  895.073921][ T9748]
| [  895.073921][ T9748] stack backtrace:
[  895.074122][ T9748] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  895.074125][ T9748] Call Trace:
[  895.074126][ T9748]  <TASK>
[ 895.074128][ T9748] dump_stack_lvl (lib/dump_stack.c:123) 
[ 895.074135][ T9748] print_circular_bug (kernel/locking/lockdep.c:2079) 
[ 895.074141][ T9748] check_noncircular (kernel/locking/lockdep.c:2208) 
[ 895.074146][ T9748] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2184) 
[ 895.074149][ T9748] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 895.074153][ T9748] ? __pfx_validate_chain (kernel/locking/lockdep.c:3862) 
[ 895.074158][ T9748] ? alloc_chain_hlocks (kernel/locking/lockdep.c:3530) 
[ 895.074162][ T9748] check_prev_add (kernel/locking/lockdep.c:3164) 
[ 895.074168][ T9748] validate_chain (kernel/locking/lockdep.c:3283 kernel/locking/lockdep.c:3906) 
[ 895.074174][ T9748] ? __pfx_validate_chain (kernel/locking/lockdep.c:3862) 
[ 895.074177][ T9748] ? 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:230) 
[ 895.074180][ T9748] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 895.074184][ T9748] __lock_acquire (kernel/locking/lockdep.c:5228) 
[ 895.074191][ T9748] lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) 
[ 895.074194][ T9748] ? dev_set_mtu (./include/linux/netdevice.h:2712 ./include/linux/netdevice.h:2750 net/core/dev_api.c:235) 
[ 895.074198][ T9748] ? do_set_master (net/core/rtnetlink.c:2939) 
[ 895.074201][ T9748] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3144) 
[ 895.074204][ T9748] ? rtnl_newlink (net/core/rtnetlink.c:350 net/core/rtnetlink.c:4049) 
[ 895.074207][ T9748] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 895.074210][ T9748] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 895.074214][ T9748] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 895.074216][ T9748] ? dev_set_mtu (./include/linux/netdevice.h:2712 ./include/linux/netdevice.h:2750 net/core/dev_api.c:235) 
[ 895.074220][ T9748] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:730) 
[ 895.074225][ T9748] ? dev_set_mtu (./include/linux/netdevice.h:2712 ./include/linux/netdevice.h:2750 net/core/dev_api.c:235) 
[ 895.074228][ T9748] ? __create_object (mm/kmemleak.c:766) 
[ 895.074232][ T9748] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 895.074235][ T9748] ? dev_set_mtu (./include/linux/netdevice.h:2712 ./include/linux/netdevice.h:2750 net/core/dev_api.c:235) 
[ 895.074239][ T9748] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) 
[ 895.074243][ T9748] ? mark_held_locks (kernel/locking/lockdep.c:4323) 
[ 895.074247][ T9748] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 895.074251][ T9748] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 895.074256][ T9748] ? dev_set_mtu (./include/linux/netdevice.h:2712 ./include/linux/netdevice.h:2750 net/core/dev_api.c:235) 
[ 895.074259][ T9748] dev_set_mtu (./include/linux/netdevice.h:2712 ./include/linux/netdevice.h:2750 net/core/dev_api.c:235) 
[ 895.074263][ T9748] team_port_add (drivers/net/team/team_core.c:1214) 
[ 895.074267][ T9748] ? __mutex_unlock_slowpath (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4329 ./include/linux/atomic/atomic-long.h:1506 ./include/linux/atomic/atomic-instrumented.h:4481 kernel/locking/mutex.c:908) 
[ 895.074271][ T9748] ? __pfx_team_port_add (drivers/net/team/team_core.c:1145) 
[ 895.074274][ T9748] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:885) 
[ 895.074279][ T9748] team_add_slave (drivers/net/team/team_core.c:1989) 
[ 895.074283][ T9748] do_set_master (net/core/rtnetlink.c:2939) 
[ 895.074288][ T9748] do_setlink.constprop.0 (net/core/rtnetlink.c:3144) 
[ 895.074293][ T9748] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3012) 
[ 895.074297][ T9748] ? lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) 
[ 895.074299][ T9748] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) 
[ 895.074302][ T9748] ? rtnl_newlink (./include/linux/slab.h:901 net/core/rtnetlink.c:3948) 
[ 895.074305][ T9748] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) 
[ 895.074308][ T9748] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:104) 
[ 895.074313][ T9748] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:79) 
[ 895.074317][ T9748] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 895.074320][ T9748] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 895.074323][ T9748] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:730) 
[ 895.074327][ T9748] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 895.074330][ T9748] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) 
[ 895.074333][ T9748] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) 
[ 895.074337][ T9748] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 895.074341][ T9748] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 895.074347][ T9748] ? __rtnl_newlink (net/core/rtnetlink.c:3898) 
[ 895.074352][ T9748] rtnl_newlink (net/core/rtnetlink.c:350 net/core/rtnetlink.c:4049) 
[ 895.074357][ T9748] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) 
[ 895.074359][ T9748] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 895.074364][ T9748] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 895.074366][ T9748] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 895.074370][ T9748] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6936) 
[ 895.074374][ T9748] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) 
[ 895.074377][ T9748] rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) 
[ 895.074381][ T9748] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) 
[ 895.074384][ T9748] ? 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:230) 
[ 895.074387][ T9748] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 895.074392][ T9748] ? __lock_acquire (kernel/locking/lockdep.c:5228) 
[ 895.074396][ T9748] netlink_rcv_skb (net/netlink/af_netlink.c:2544) 
[ 895.074401][ T9748] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) 
[ 895.074405][ T9748] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2521) 
[ 895.074412][ T9748] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 895.074416][ T9748] ? 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) 
[ 895.074420][ T9748] netlink_unicast (net/netlink/af_netlink.c:1323 net/netlink/af_netlink.c:1349) 
[ 895.074425][ T9748] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1334) 
[ 895.074429][ T9748] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 895.074433][ T9748] netlink_sendmsg (net/netlink/af_netlink.c:1893) 
[ 895.074438][ T9748] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1812) 
[ 895.074444][ T9748] ____sys_sendmsg (net/socket.c:718 net/socket.c:733 net/socket.c:2573) 
[ 895.074449][ T9748] ? __pfx_____sys_sendmsg (net/socket.c:2519) 
[ 895.074452][ T9748] ? __pfx_copy_msghdr_from_user (net/socket.c:2499) 
[ 895.074458][ T9748] ___sys_sendmsg (net/socket.c:2629) 
[ 895.074461][ T9748] ? __pfx____sys_sendmsg (net/socket.c:2616) 
[ 895.074465][ T9748] ? ___sys_recvmsg (net/socket.c:2825) 
[ 895.074468][ T9748] ? __pfx____sys_recvmsg (net/socket.c:2825) 
[ 895.074472][ T9748] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1339) 
[ 895.074476][ T9748] ? do_user_addr_fault (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 ./include/linux/mm.h:740 arch/x86/mm/fault.c:1339) 
[ 895.074481][ T9748] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 895.074485][ T9748] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 895.074488][ T9748] __sys_sendmsg (net/socket.c:2659) 
[ 895.074491][ T9748] ? __pfx___sys_sendmsg (net/socket.c:2644) 
[ 895.074495][ T9748] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 895.074500][ T9748] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 895.074504][ T9748] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  895.074507][ T9748] RIP: 0033:0x7f1631afa9a7
[ 895.074512][ T9748] 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)
[  895.074514][ T9748] RSP: 002b:00007ffe46954708 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  895.074518][ T9748] RAX: ffffffffffffffda RBX: 00000000140f8730 RCX: 00007f1631afa9a7
[  895.074520][ T9748] RDX: 0000000000000000 RSI: 00007ffe46954740 RDI: 0000000000000005
[  895.074522][ T9748] RBP: 00000000140f8640 R08: 0000000000000008 R09: 0000000000000000
[  895.074524][ T9748] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000014113760


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