======================================
| [ 34.252021][ T322] #0: ffffffff85dbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [ 34.252388][ T322] #1: ffff8880063c2c58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge
| [   34.252799][  T322]
| [   34.252799][  T322] stack backtrace:
[   34.253312][  T322] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   34.253722][  T322] Call Trace:
[   34.253867][  T322]  <TASK>
[ 34.253968][ T322] dump_stack_lvl (lib/dump_stack.c:122) 
[ 34.254163][ T322] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 34.254351][ T322] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 34.254610][ T322] br_get_link_af_size_filtered (net/bridge/br_private.h:930 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) bridge
[ 34.254869][ T322] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 34.255053][ T322] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 34.255240][ T322] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 34.255459][ T322] br_make_forwarding (net/bridge/br_stp.c:465) bridge
[ 34.255673][ T322] br_port_state_selection (net/bridge/br_stp.c:495) bridge
[ 34.255936][ T322] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge
[ 34.256146][ T322] br_add_if (net/bridge/br_if.c:687) bridge
[ 34.256368][ T322] do_setlink (net/core/rtnetlink.c:2907) 
[ 34.256558][ T322] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 34.256744][ T322] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 34.256932][ T322] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 34.257115][ T322] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 34.257306][ T322] ? __kernel_text_address (kernel/extable.c:79) 
[ 34.257492][ T322] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 34.257678][ T322] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 34.257910][ T322] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 34.258107][ T322] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 34.258295][ T322] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 34.258477][ T322] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 34.258668][ T322] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 34.258811][ T322] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 34.259008][ T322] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 34.259201][ T322] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 34.259396][ T322] ? 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:227) 
[ 34.259582][ T322] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 34.259775][ T322] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 34.260008][ T322] ? __create_object (mm/kmemleak.c:751) 
[ 34.260194][ T322] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 34.260383][ T322] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 34.260523][ T322] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 34.260709][ T322] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 34.260892][ T322] ? 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:227) 
[ 34.261077][ T322] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 34.261221][ T322] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 34.261407][ T322] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 34.261589][ T322] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 34.261774][ T322] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 34.261974][ T322] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 34.262157][ T322] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 34.262344][ T322] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 34.262533][ T322] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 34.262740][ T322] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 34.262928][ T322] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 34.263117][ T322] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 34.263297][ T322] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 34.263484][ T322] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 34.263674][ T322] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 34.263860][ T322] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 34.264039][ T322] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 34.264267][ T322] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 34.264462][ T322] ___sys_sendmsg (net/socket.c:2653) 
[ 34.264650][ T322] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 34.264834][ T322] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 34.265019][ T322] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 34.265200][ T322] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 34.265429][ T322] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 34.265626][ T322] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 34.265814][ T322] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 34.266042][ T322] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 34.266237][ T322] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 34.266420][ T322] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 34.266601][ T322] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) 
[ 34.266811][ T322] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 34.266998][ T322] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   34.267239][  T322] RIP: 0033:0x7fec32dee7b7
[ 34.267430][ T322] 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)
[   34.268074][  T322] RSP: 002b:00007fff3f03d888 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   34.268354][  T322] RAX: ffffffffffffffda RBX: 00007fff3f03dfb0 RCX: 00007fec32dee7b7
[   34.268634][  T322] RDX: 0000000000000000 RSI: 00007fff3f03d8f0 RDI: 0000000000000005
[   34.268903][  T322] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   34.269174][  T322] R10: 0000000026bfb910 R11: 0000000000000246 R12: 0000000000000004
[   34.269447][  T322] R13: 0000000066bea539 R14: 0000000000496600 R15: 0000000000000000
| [ 34.271757][ T322] #0: ffffffff85dbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [ 34.272084][ T322] #1: ffff8880063c2c58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge
| [   34.272449][  T322]
| [   34.272449][  T322] stack backtrace:
[   34.272965][  T322] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   34.273384][  T322] Call Trace:
[   34.273523][  T322]  <TASK>
[ 34.273619][ T322] dump_stack_lvl (lib/dump_stack.c:122) 
[ 34.273814][ T322] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 34.273997][ T322] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 34.274268][ T322] br_get_link_af_size_filtered (net/bridge/br_private.h:453 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) bridge
[ 34.274529][ T322] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 34.274711][ T322] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 34.274903][ T322] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 34.275131][ T322] br_make_forwarding (net/bridge/br_stp.c:465) bridge
[ 34.275345][ T322] br_port_state_selection (net/bridge/br_stp.c:495) bridge
[ 34.275613][ T322] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge
[ 34.275832][ T322] br_add_if (net/bridge/br_if.c:687) bridge
[ 34.276221][ T322] do_setlink (net/core/rtnetlink.c:2907) 
[ 34.276421][ T322] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 34.276607][ T322] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 34.276796][ T322] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 34.277090][ T322] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 34.277277][ T322] ? __kernel_text_address (kernel/extable.c:79) 
[ 34.277460][ T322] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 34.277646][ T322] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 34.277982][ T322] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 34.278178][ T322] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 34.278361][ T322] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 34.278550][ T322] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 34.278733][ T322] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 34.279093][ T322] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 34.279281][ T322] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 34.279474][ T322] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 34.279669][ T322] ? 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:227) 
[ 34.279962][ T322] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 34.280151][ T322] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 34.280379][ T322] ? __create_object (mm/kmemleak.c:751) 
[ 34.280580][ T322] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 34.280886][ T322] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 34.281031][ T322] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 34.281217][ T322] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 34.281403][ T322] ? 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:227) 
[ 34.281584][ T322] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 34.281838][ T322] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 34.282033][ T322] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 34.282215][ T322] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 34.282399][ T322] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 34.282716][ T322] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 34.282907][ T322] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 34.283097][ T322] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 34.283293][ T322] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 34.283586][ T322] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 34.283776][ T322] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 34.283967][ T322] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 34.284154][ T322] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 34.284340][ T322] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 34.284641][ T322] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 34.284833][ T322] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 34.285014][ T322] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 34.285242][ T322] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 34.285558][ T322] ___sys_sendmsg (net/socket.c:2653) 
[ 34.285752][ T322] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 34.285935][ T322] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 34.286127][ T322] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 34.286309][ T322] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 34.286539][ T322] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 34.286731][ T322] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 34.286924][ T322] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 34.287271][ T322] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 34.287462][ T322] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 34.287646][ T322] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 34.287830][ T322] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) 
[ 34.288149][ T322] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 34.288339][ T322] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   34.288570][  T322] RIP: 0033:0x7fec32dee7b7
[ 34.288759][ T322] 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)
[   34.289491][  T322] RSP: 002b:00007fff3f03d888 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   34.289877][  T322] RAX: ffffffffffffffda RBX: 00007fff3f03dfb0 RCX: 00007fec32dee7b7
[   34.290148][  T322] RDX: 0000000000000000 RSI: 00007fff3f03d8f0 RDI: 0000000000000005
[   34.290415][  T322] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   34.290793][  T322] R10: 0000000026bfb910 R11: 0000000000000246 R12: 0000000000000004
[   34.291061][  T322] R13: 0000000066bea539 R14: 0000000000496600 R15: 0000000000000000
| [ 34.293810][ T322] #0: ffffffff85dbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [ 34.294137][ T322] #1: ffff8880063c2c58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge
| [   34.294503][  T322]
| [   34.294503][  T322] stack backtrace:
[   34.295006][  T322] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   34.295518][  T322] Call Trace:
[   34.295664][  T322]  <TASK>
[ 34.295760][ T322] dump_stack_lvl (lib/dump_stack.c:122) 
[ 34.295953][ T322] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 34.296253][ T322] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 34.296511][ T322] br_get_link_af_size_filtered (net/bridge/br_private.h:1611 net/bridge/br_private.h:1608 net/bridge/br_netlink.c:107) bridge
[ 34.296765][ T322] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 34.297064][ T322] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 34.297253][ T322] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 34.297471][ T322] br_make_forwarding (net/bridge/br_stp.c:465) bridge
[ 34.297685][ T322] br_port_state_selection (net/bridge/br_stp.c:495) bridge
[ 34.298062][ T322] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge
[ 34.298275][ T322] br_add_if (net/bridge/br_if.c:687) bridge
[ 34.298502][ T322] do_setlink (net/core/rtnetlink.c:2907) 
[ 34.298688][ T322] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 34.298871][ T322] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 34.299163][ T322] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 34.299352][ T322] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 34.299537][ T322] ? __kernel_text_address (kernel/extable.c:79) 
[ 34.299722][ T322] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 34.300019][ T322] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 34.300249][ T322] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 34.300442][ T322] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 34.300634][ T322] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 34.300928][ T322] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 34.301109][ T322] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 34.301256][ T322] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 34.301450][ T322] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 34.301749][ T322] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 34.301945][ T322] ? 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:227) 
[ 34.302164][ T322] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 34.302354][ T322] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 34.302697][ T322] ? __create_object (mm/kmemleak.c:751) 
[ 34.302891][ T322] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 34.303080][ T322] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 34.303222][ T322] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 34.303408][ T322] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 34.303710][ T322] ? 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:227) 
[ 34.303892][ T322] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 34.304041][ T322] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 34.304233][ T322] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 34.304531][ T322] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 34.304720][ T322] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 34.304924][ T322] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 34.305107][ T322] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 34.305299][ T322] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 34.305605][ T322] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 34.305788][ T322] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 34.305982][ T322] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 34.306172][ T322] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 34.306353][ T322] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 34.306550][ T322] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 34.306741][ T322] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 34.306939][ T322] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 34.307234][ T322] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 34.307461][ T322] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 34.307658][ T322] ___sys_sendmsg (net/socket.c:2653) 
[ 34.307848][ T322] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 34.308251][ T322] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 34.308441][ T322] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 34.308620][ T322] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 34.308844][ T322] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 34.309137][ T322] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 34.309325][ T322] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 34.309552][ T322] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 34.309744][ T322] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 34.310034][ T322] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 34.310218][ T322] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2034 arch/x86/mm/physaddr.c:65) 
[ 34.310421][ T322] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 34.310605][ T322] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   34.310939][  T322] RIP: 0033:0x7fec32dee7b7
[ 34.311127][ T322] 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)
[   34.311888][  T322] RSP: 002b:00007fff3f03d888 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   34.312160][  T322] RAX: ffffffffffffffda RBX: 00007fff3f03dfb0 RCX: 00007fec32dee7b7
[   34.312441][  T322] RDX: 0000000000000000 RSI: 00007fff3f03d8f0 RDI: 0000000000000005
[   34.312830][  T322] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   34.313103][  T322] R10: 0000000026bfb910 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_make_forwarding:br_port_state_selection