======================================
| [ 41.144973][ T318] #0: ffffffffbb7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [ 41.145480][ T318] #1: ffff88800581ac58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge
| [   41.146042][  T318]
| [   41.146042][  T318] stack backtrace:
[   41.146651][  T318] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   41.147157][  T318] Call Trace:
[   41.147349][  T318]  <TASK>
[ 41.147467][ T318] dump_stack_lvl (lib/dump_stack.c:122) 
[ 41.147708][ T318] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 41.147899][ T318] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 41.148245][ T318] 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
[ 41.148504][ T318] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 41.148693][ T318] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 41.148886][ T318] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 41.149194][ T318] br_make_forwarding (net/bridge/br_stp.c:465) bridge
[ 41.149419][ T318] br_port_state_selection (net/bridge/br_stp.c:495) bridge
[ 41.149746][ T318] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge
[ 41.150000][ T318] br_add_if (net/bridge/br_if.c:687) bridge
[ 41.150263][ T318] do_setlink (net/core/rtnetlink.c:2907) 
[ 41.150463][ T318] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 41.150736][ T318] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 41.150932][ T318] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 41.151172][ T318] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.151384][ T318] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.151643][ T318] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 41.151828][ T318] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 41.152062][ T318] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 41.152267][ T318] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 41.152459][ T318] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 41.152651][ T318] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 41.152849][ T318] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 41.153007][ T318] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 41.153236][ T318] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 41.153488][ T318] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 41.153746][ T318] ? 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) 
[ 41.153940][ T318] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 41.154160][ T318] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 41.154443][ T318] ? __create_object (mm/kmemleak.c:751) 
[ 41.154700][ T318] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 41.154905][ T318] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 41.155099][ T318] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 41.155318][ T318] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 41.155521][ T318] ? 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) 
[ 41.155751][ T318] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 41.155911][ T318] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 41.156142][ T318] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 41.156348][ T318] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 41.156569][ T318] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 41.156783][ T318] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 41.156984][ T318] ? 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) 
[ 41.157202][ T318] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 41.157408][ T318] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 41.157601][ T318] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 41.157800][ T318] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 41.157994][ T318] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 41.158216][ T318] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 41.158428][ T318] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 41.158643][ T318] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 41.158837][ T318] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 41.159043][ T318] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 41.159274][ T318] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 41.159476][ T318] ___sys_sendmsg (net/socket.c:2653) 
[ 41.159671][ T318] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 41.159860][ T318] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 41.160052][ T318] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 41.160235][ T318] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 41.160475][ T318] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 41.160664][ T318] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 41.160881][ T318] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 41.161124][ T318] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 41.161380][ T318] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 41.161572][ T318] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 41.161758][ T318] ? __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) 
[ 41.161975][ T318] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 41.162195][ T318] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.162443][  T318] RIP: 0033:0x7fbded99d7b7
[ 41.162643][ T318] 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)
[   41.163308][  T318] RSP: 002b:00007ffcd4713a88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.163635][  T318] RAX: ffffffffffffffda RBX: 00007ffcd47141b0 RCX: 00007fbded99d7b7
[   41.163918][  T318] RDX: 0000000000000000 RSI: 00007ffcd4713af0 RDI: 0000000000000005
[   41.164211][  T318] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   41.164527][  T318] R10: 0000000030f03910 R11: 0000000000000246 R12: 0000000000000004
[   41.164834][  T318] R13: 0000000066be9ad0 R14: 0000000000496600 R15: 0000000000000000
| [ 41.168395][ T318] #0: ffffffffbb7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [ 41.168953][ T318] #1: ffff88800581ac58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge
| [   41.169549][  T318]
| [   41.169549][  T318] stack backtrace:
[   41.170431][  T318] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   41.171183][  T318] Call Trace:
[   41.171441][  T318]  <TASK>
[ 41.171610][ T318] dump_stack_lvl (lib/dump_stack.c:122) 
[ 41.171930][ T318] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 41.172244][ T318] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 41.172675][ T318] 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
[ 41.173087][ T318] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 41.173390][ T318] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 41.173690][ T318] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 41.174052][ T318] br_make_forwarding (net/bridge/br_stp.c:465) bridge
[ 41.174406][ T318] br_port_state_selection (net/bridge/br_stp.c:495) bridge
[ 41.174863][ T318] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge
[ 41.175216][ T318] br_add_if (net/bridge/br_if.c:687) bridge
[ 41.175600][ T318] do_setlink (net/core/rtnetlink.c:2907) 
[ 41.175911][ T318] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 41.176240][ T318] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 41.176555][ T318] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 41.176880][ T318] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.177208][ T318] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.177529][ T318] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 41.177860][ T318] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 41.178250][ T318] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 41.178591][ T318] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 41.178911][ T318] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 41.179204][ T318] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 41.179535][ T318] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 41.179785][ T318] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 41.180120][ T318] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 41.180456][ T318] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 41.180779][ T318] ? 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) 
[ 41.181092][ T318] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 41.181440][ T318] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 41.181832][ T318] ? __create_object (mm/kmemleak.c:751) 
[ 41.182159][ T318] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 41.182483][ T318] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 41.182736][ T318] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 41.183069][ T318] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 41.183378][ T318] ? 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) 
[ 41.183710][ T318] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 41.183977][ T318] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 41.184304][ T318] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 41.184627][ T318] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 41.184928][ T318] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 41.185307][ T318] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 41.185622][ T318] ? 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) 
[ 41.185950][ T318] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 41.186278][ T318] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 41.186611][ T318] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 41.186915][ T318] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 41.187139][ T318] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 41.187344][ T318] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 41.187562][ T318] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 41.187760][ T318] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 41.187955][ T318] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 41.188185][ T318] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 41.188425][ T318] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 41.188647][ T318] ___sys_sendmsg (net/socket.c:2653) 
[ 41.188883][ T318] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 41.189072][ T318] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 41.189382][ T318] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 41.189667][ T318] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 41.190062][ T318] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 41.190393][ T318] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 41.190708][ T318] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 41.191047][ T318] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 41.191370][ T318] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 41.191658][ T318] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 41.191979][ T318] ? __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) 
[ 41.192336][ T318] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 41.192688][ T318] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.193357][  T318] RIP: 0033:0x7fbded99d7b7
[ 41.193676][ T318] 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)
[   41.195070][  T318] RSP: 002b:00007ffcd4713a88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.195504][  T318] RAX: ffffffffffffffda RBX: 00007ffcd47141b0 RCX: 00007fbded99d7b7
[   41.195974][  T318] RDX: 0000000000000000 RSI: 00007ffcd4713af0 RDI: 0000000000000005
[   41.196619][  T318] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   41.197081][  T318] R10: 0000000030f03910 R11: 0000000000000246 R12: 0000000000000004
[   41.197722][  T318] R13: 0000000066be9ad0 R14: 0000000000496600 R15: 0000000000000000
| [ 41.202270][ T318] #0: ffffffffbb7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [ 41.203094][ T318] #1: ffff88800581ac58 (&br->lock){+...}-{2:2}, at: br_add_if (net/bridge/br_if.c:683) bridge
| [   41.203700][  T318]
| [   41.203700][  T318] stack backtrace:
[   41.204896][  T318] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   41.205610][  T318] Call Trace:
[   41.206077][  T318]  <TASK>
[ 41.206248][ T318] dump_stack_lvl (lib/dump_stack.c:122) 
[ 41.206580][ T318] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 41.206883][ T318] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 41.207510][ T318] 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
[ 41.207892][ T318] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 41.208194][ T318] ? __timer_delete (./include/linux/list.h:971 ./include/linux/timer.h:147 kernel/time/timer.c:1426) 
[ 41.208519][ T318] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 41.209064][ T318] br_make_forwarding (net/bridge/br_stp.c:465) bridge
[ 41.209433][ T318] br_port_state_selection (net/bridge/br_stp.c:495) bridge
[ 41.209911][ T318] br_stp_enable_port (net/bridge/br_stp_if.c:95) bridge
[ 41.210277][ T318] br_add_if (net/bridge/br_if.c:687) bridge
[ 41.210830][ T318] do_setlink (net/core/rtnetlink.c:2907) 
[ 41.211144][ T318] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 41.211482][ T318] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 41.211795][ T318] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 41.212088][ T318] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.212574][ T318] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.212896][ T318] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 41.213217][ T318] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 41.213656][ T318] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 41.214187][ T318] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 41.214500][ T318] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 41.214820][ T318] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 41.215132][ T318] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 41.215580][ T318] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 41.215915][ T318] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 41.216229][ T318] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 41.216552][ T318] ? 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) 
[ 41.217243][ T318] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 41.217585][ T318] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 41.217990][ T318] ? __create_object (mm/kmemleak.c:751) 
[ 41.218310][ T318] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 41.218817][ T318] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 41.219064][ T318] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 41.219379][ T318] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 41.219688][ T318] ? 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) 
[ 41.220025][ T318] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 41.220472][ T318] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 41.220789][ T318] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 41.221118][ T318] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 41.221432][ T318] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 41.221958][ T318] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 41.222273][ T318] ? 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) 
[ 41.222579][ T318] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 41.222908][ T318] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 41.223218][ T318] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 41.223732][ T318] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 41.224043][ T318] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 41.224350][ T318] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 41.224676][ T318] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 41.225216][ T318] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 41.225546][ T318] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 41.225866][ T318] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 41.226247][ T318] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 41.226791][ T318] ___sys_sendmsg (net/socket.c:2653) 
[ 41.227108][ T318] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 41.227491][ T318] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 41.227801][ T318] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 41.228308][ T318] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 41.228721][ T318] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 41.229040][ T318] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 41.229379][ T318] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 41.229974][ T318] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 41.230318][ T318] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 41.230636][ T318] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 41.230966][ T318] ? __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) 
[ 41.231504][ T318] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 41.231805][ T318] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.232214][  T318] RIP: 0033:0x7fbded99d7b7
[ 41.232528][ T318] 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)
[   41.233806][  T318] RSP: 002b:00007ffcd4713a88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.234284][  T318] RAX: ffffffffffffffda RBX: 00007ffcd47141b0 RCX: 00007fbded99d7b7
[   41.234769][  T318] RDX: 0000000000000000 RSI: 00007ffcd4713af0 RDI: 0000000000000005
[   41.235249][  T318] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   41.235886][  T318] R10: 0000000030f03910 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