======================================
| [   81.703109][  T649] 1 lock held by ip/649:
| [ 81.703235][ T649] #0: ffffffff91fbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   81.703551][  T649]
| [   81.703551][  T649] stack backtrace:
[   81.704024][  T649] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   81.704439][  T649] Call Trace:
[   81.704578][  T649]  <TASK>
[ 81.704667][ T649] dump_stack_lvl (lib/dump_stack.c:122) 
[ 81.704848][ T649] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 81.705046][ T649] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 81.705342][ T649] 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
[ 81.705586][ T649] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 81.705804][ T649] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 81.706047][ T649] br_add_if (net/bridge/br_if.c:692) bridge
[ 81.706252][ T649] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 81.706426][ T649] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 81.706635][ T649] do_setlink (net/core/rtnetlink.c:2907) 
[ 81.706808][ T649] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 81.707043][ T649] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 81.707234][ T649] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 81.707402][ T649] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 81.707580][ T649] ? __kernel_text_address (kernel/extable.c:79) 
[ 81.707746][ T649] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 81.707915][ T649] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 81.708137][ T649] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 81.708330][ T649] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 81.708509][ T649] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 81.708690][ T649] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 81.708868][ T649] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 81.709003][ T649] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 81.709180][ T649] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 81.709354][ T649] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 81.709528][ T649] ? 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) 
[ 81.709695][ T649] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 81.709868][ T649] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 81.710078][ T649] ? __create_object (mm/kmemleak.c:751) 
[ 81.710249][ T649] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 81.710423][ T649] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 81.710549][ T649] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 81.710724][ T649] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 81.710897][ T649] ? 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) 
[ 81.711136][ T649] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 81.711290][ T649] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 81.711460][ T649] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 81.711648][ T649] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 81.711819][ T649] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 81.712001][ T649] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 81.712186][ T649] ? 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) 
[ 81.712356][ T649] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 81.712547][ T649] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 81.712719][ T649] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 81.712890][ T649] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 81.713081][ T649] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 81.713247][ T649] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 81.713444][ T649] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 81.713624][ T649] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 81.713794][ T649] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 81.713965][ T649] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 81.714208][ T649] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 81.714392][ T649] ___sys_sendmsg (net/socket.c:2653) 
[ 81.714559][ T649] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 81.714730][ T649] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 81.714903][ T649] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 81.715085][ T649] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 81.715291][ T649] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 81.715467][ T649] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 81.715651][ T649] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 81.715870][ T649] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 81.716066][ T649] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 81.716234][ T649] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 81.716424][ T649] ? __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) 
[ 81.716633][ T649] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 81.716805][ T649] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   81.717046][  T649] RIP: 0033:0x7fb8d6b2a7b7
[ 81.717230][ T649] 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)
[   81.717855][  T649] RSP: 002b:00007fff85dea2c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   81.718139][  T649] RAX: ffffffffffffffda RBX: 00007fff85dea9f0 RCX: 00007fb8d6b2a7b7
[   81.718399][  T649] RDX: 0000000000000000 RSI: 00007fff85dea330 RDI: 0000000000000005
[   81.718700][  T649] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   81.718959][  T649] R10: 00000000113ee910 R11: 0000000000000246 R12: 0000000000000004
[   81.719224][  T649] R13: 0000000066bea17a R14: 0000000000496600 R15: 0000000000000000
| [   81.721390][  T649] 1 lock held by ip/649:
| [ 81.721522][ T649] #0: ffffffff91fbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   81.721836][  T649]
| [   81.721836][  T649] stack backtrace:
[   81.722338][  T649] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   81.722699][  T649] Call Trace:
[   81.722873][  T649]  <TASK>
[ 81.722987][ T649] dump_stack_lvl (lib/dump_stack.c:122) 
[ 81.723161][ T649] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 81.723347][ T649] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 81.723594][ T649] 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
[ 81.723858][ T649] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 81.724066][ T649] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 81.724276][ T649] br_add_if (net/bridge/br_if.c:692) bridge
[ 81.724475][ T649] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 81.724642][ T649] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 81.724859][ T649] do_setlink (net/core/rtnetlink.c:2907) 
[ 81.725056][ T649] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 81.725227][ T649] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 81.725419][ T649] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 81.725588][ T649] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 81.725810][ T649] ? __kernel_text_address (kernel/extable.c:79) 
[ 81.725986][ T649] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 81.726155][ T649] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 81.726397][ T649] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 81.726576][ T649] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 81.726761][ T649] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 81.726931][ T649] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 81.727098][ T649] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 81.727262][ T649] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 81.727435][ T649] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 81.727608][ T649] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 81.727784][ T649] ? 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) 
[ 81.727956][ T649] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 81.728127][ T649] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 81.728335][ T649] ? __create_object (mm/kmemleak.c:751) 
[ 81.728508][ T649] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 81.728681][ T649] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 81.728809][ T649] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 81.728978][ T649] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 81.729147][ T649] ? 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) 
[ 81.729319][ T649] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 81.729452][ T649] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 81.729620][ T649] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 81.729786][ T649] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 81.729958][ T649] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 81.730143][ T649] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 81.730311][ T649] ? 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) 
[ 81.730481][ T649] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 81.730660][ T649] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 81.730830][ T649] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 81.731001][ T649] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 81.731171][ T649] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 81.731337][ T649] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 81.731504][ T649] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 81.731677][ T649] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 81.731844][ T649] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 81.732009][ T649] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 81.732219][ T649] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 81.732423][ T649] ___sys_sendmsg (net/socket.c:2653) 
[ 81.732594][ T649] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 81.732760][ T649] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 81.733101][ T649] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 81.733264][ T649] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 81.733480][ T649] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 81.733655][ T649] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 81.733922][ T649] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 81.734151][ T649] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 81.734328][ T649] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 81.734497][ T649] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 81.734663][ T649] ? __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) 
[ 81.734850][ T649] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 81.735018][ T649] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   81.735230][  T649] RIP: 0033:0x7fb8d6b2a7b7
[ 81.735511][ T649] 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)
[   81.736091][  T649] RSP: 002b:00007fff85dea2c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   81.736545][  T649] RAX: ffffffffffffffda RBX: 00007fff85dea9f0 RCX: 00007fb8d6b2a7b7
[   81.736798][  T649] RDX: 0000000000000000 RSI: 00007fff85dea330 RDI: 0000000000000005
[   81.737045][  T649] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   81.737293][  T649] R10: 00000000113ee910 R11: 0000000000000246 R12: 0000000000000004
[   81.737543][  T649] R13: 0000000066bea17a R14: 0000000000496600 R15: 0000000000000000
| [   81.740053][  T649] 1 lock held by ip/649:
| [ 81.740179][ T649] #0: ffffffff91fbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   81.740848][  T649]
| [   81.740848][  T649] stack backtrace:
[   81.741306][  T649] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   81.741677][  T649] Call Trace:
[   81.741803][  T649]  <TASK>
[ 81.741893][ T649] dump_stack_lvl (lib/dump_stack.c:122) 
[ 81.742063][ T649] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 81.742327][ T649] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 81.742569][ T649] 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
[ 81.742810][ T649] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 81.743008][ T649] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 81.743228][ T649] br_add_if (net/bridge/br_if.c:692) bridge
[ 81.743462][ T649] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 81.743627][ T649] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 81.743837][ T649] do_setlink (net/core/rtnetlink.c:2907) 
[ 81.744006][ T649] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 81.744194][ T649] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 81.744359][ T649] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 81.744525][ T649] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 81.744696][ T649] ? __kernel_text_address (kernel/extable.c:79) 
[ 81.744860][ T649] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 81.745025][ T649] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 81.745229][ T649] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 81.745508][ T649] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 81.745676][ T649] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 81.745845][ T649] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 81.746012][ T649] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 81.746146][ T649] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 81.746322][ T649] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 81.746494][ T649] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 81.746674][ T649] ? 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) 
[ 81.746850][ T649] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 81.747150][ T649] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 81.747363][ T649] ? __create_object (mm/kmemleak.c:751) 
[ 81.747536][ T649] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 81.747711][ T649] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 81.747959][ T649] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 81.748142][ T649] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 81.748309][ T649] ? 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) 
[ 81.748474][ T649] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 81.748607][ T649] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 81.748873][ T649] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 81.749058][ T649] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 81.749228][ T649] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 81.749413][ T649] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 81.749585][ T649] ? 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) 
[ 81.749849][ T649] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 81.750021][ T649] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 81.750190][ T649] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 81.750367][ T649] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 81.750542][ T649] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 81.750707][ T649] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 81.750988][ T649] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 81.751164][ T649] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 81.751334][ T649] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 81.751499][ T649] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 81.751707][ T649] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 81.751991][ T649] ___sys_sendmsg (net/socket.c:2653) 
[ 81.752161][ T649] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 81.752329][ T649] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 81.752507][ T649] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 81.752768][ T649] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 81.753077][ T649] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 81.753245][ T649] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 81.753422][ T649] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 81.753633][ T649] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 81.753808][ T649] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 81.753977][ T649] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 81.754259][ T649] ? __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) 
[ 81.754556][ T649] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 81.754725][ T649] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   81.754932][  T649] RIP: 0033:0x7fb8d6b2a7b7
[ 81.755105][ T649] 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)
[   81.755689][  T649] RSP: 002b:00007fff85dea2c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   81.755947][  T649] RAX: ffffffffffffffda RBX: 00007fff85dea9f0 RCX: 00007fb8d6b2a7b7
[   81.756229][  T649] RDX: 0000000000000000 RSI: 00007fff85dea330 RDI: 0000000000000005
[   81.756482][  T649] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   81.756769][  T649] R10: 00000000113ee910 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
lockdep_rcu_suspicious:br_get_link_af_size_filtered:br_info_notify:br_add_if:do_setlink