======================================
| [   34.347611][  T294] 1 lock held by ip/294:
| [ 34.347734][ T294] #0: ffffffffa63dcac8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   34.348049][  T294]
| [   34.348049][  T294] stack backtrace:
[   34.348491][  T294] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   34.348843][  T294] Call Trace:
[   34.348970][  T294]  <TASK>
[ 34.349058][ T294] dump_stack_lvl (lib/dump_stack.c:122) 
[ 34.349226][ T294] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 34.349390][ T294] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) 
[ 34.349559][ T294] br_get_link_af_size_filtered (net/bridge/br_private.h:930 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) 
[ 34.349764][ T294] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) 
[ 34.349924][ T294] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 34.350127][ T294] br_add_if (net/bridge/br_if.c:692) 
[ 34.350255][ T294] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 34.350428][ T294] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 34.350634][ T294] do_setlink (net/core/rtnetlink.c:2907) 
[ 34.350795][ T294] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 34.350966][ T294] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 34.351128][ T294] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 34.351288][ T294] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 34.351451][ T294] ? __kernel_text_address (kernel/extable.c:79) 
[ 34.351612][ T294] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 34.351775][ T294] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 34.351975][ T294] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 34.352153][ T294] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 34.352319][ T294] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 34.352483][ T294] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 34.352649][ T294] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 34.352777][ T294] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 34.352946][ T294] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 34.353119][ T294] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 34.353286][ T294] ? 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) 
[ 34.353449][ T294] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 34.353615][ T294] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 34.353818][ T294] ? __create_object (mm/kmemleak.c:751) 
[ 34.353981][ T294] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 34.354154][ T294] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 34.354270][ T294] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 34.354451][ T294] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 34.354618][ T294] ? 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) 
[ 34.354780][ T294] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 34.354908][ T294] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 34.355073][ T294] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 34.355241][ T294] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 34.355404][ T294] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 34.355584][ T294] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 34.355749][ T294] ? 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) 
[ 34.356032][ T294] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 34.356203][ T294] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 34.356359][ T294] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 34.356527][ T294] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 34.356692][ T294] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 34.356941][ T294] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 34.357106][ T294] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 34.357276][ T294] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 34.357446][ T294] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 34.357693][ T294] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 34.357898][ T294] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 34.358060][ T294] ___sys_sendmsg (net/socket.c:2653) 
[ 34.358225][ T294] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 34.358484][ T294] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 34.358649][ T294] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 34.358812][ T294] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 34.359019][ T294] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 34.359185][ T294] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 34.359352][ T294] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 34.359559][ T294] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 34.359732][ T294] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 34.359898][ T294] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 34.360059][ T294] ? __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) 
[ 34.360242][ T294] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 34.360408][ T294] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   34.360700][  T294] RIP: 0033:0x7f9881be07b7
[ 34.360871][ T294] 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)
[   34.361650][  T294] RSP: 002b:00007ffce392dfb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   34.361904][  T294] RAX: ffffffffffffffda RBX: 00007ffce392e6f0 RCX: 00007f9881be07b7
[   34.362157][  T294] RDX: 0000000000000000 RSI: 00007ffce392e020 RDI: 0000000000000005
[   34.362400][  T294] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   34.362639][  T294] R10: 000000000f258910 R11: 0000000000000246 R12: 0000000000000004
[   34.362882][  T294] R13: 0000000066beab2e R14: 0000000000496600 R15: 0000000000000000
| [   34.365160][  T294] 1 lock held by ip/294:
| [ 34.365462][ T294] #0: ffffffffa63dcac8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   34.365762][  T294]
| [   34.365762][  T294] stack backtrace:
[   34.366211][  T294] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   34.366567][  T294] Call Trace:
[   34.366687][  T294]  <TASK>
[ 34.366772][ T294] dump_stack_lvl (lib/dump_stack.c:122) 
[ 34.366936][ T294] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 34.367087][ T294] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) 
[ 34.367258][ T294] br_get_link_af_size_filtered (net/bridge/br_private.h:453 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) 
[ 34.367465][ T294] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) 
[ 34.367626][ T294] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 34.367830][ T294] br_add_if (net/bridge/br_if.c:692) 
[ 34.368044][ T294] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 34.368207][ T294] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 34.368411][ T294] do_setlink (net/core/rtnetlink.c:2907) 
[ 34.368568][ T294] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 34.368818][ T294] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 34.368981][ T294] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 34.369130][ T294] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 34.369293][ T294] ? __kernel_text_address (kernel/extable.c:79) 
[ 34.369540][ T294] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 34.369702][ T294] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 34.369902][ T294] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 34.370075][ T294] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 34.370332][ T294] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 34.370500][ T294] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 34.370666][ T294] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 34.370794][ T294] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 34.370961][ T294] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 34.371132][ T294] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 34.371303][ T294] ? 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) 
[ 34.371469][ T294] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 34.371641][ T294] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 34.371847][ T294] ? __create_object (mm/kmemleak.c:751) 
[ 34.372012][ T294] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 34.372180][ T294] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 34.372302][ T294] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 34.372555][ T294] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 34.372718][ T294] ? 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) 
[ 34.372879][ T294] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 34.373006][ T294] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 34.373179][ T294] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 34.373434][ T294] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 34.373597][ T294] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 34.373772][ T294] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 34.373933][ T294] ? 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) 
[ 34.374097][ T294] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 34.374260][ T294] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 34.374439][ T294] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 34.374610][ T294] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 34.374865][ T294] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 34.375024][ T294] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 34.375186][ T294] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 34.375363][ T294] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 34.375615][ T294] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 34.375776][ T294] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 34.375976][ T294] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 34.376149][ T294] ___sys_sendmsg (net/socket.c:2653) 
[ 34.376407][ T294] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 34.376571][ T294] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 34.376735][ T294] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 34.376896][ T294] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 34.377098][ T294] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 34.377275][ T294] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 34.377459][ T294] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 34.377668][ T294] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 34.377840][ T294] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 34.378014][ T294] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 34.378181][ T294] ? __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) 
[ 34.378373][ T294] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 34.378537][ T294] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   34.378829][  T294] RIP: 0033:0x7f9881be07b7
[ 34.379001][ T294] 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)
[   34.379676][  T294] RSP: 002b:00007ffce392dfb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   34.379926][  T294] RAX: ffffffffffffffda RBX: 00007ffce392e6f0 RCX: 00007f9881be07b7
[   34.380268][  T294] RDX: 0000000000000000 RSI: 00007ffce392e020 RDI: 0000000000000005
[   34.380520][  T294] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   34.380766][  T294] R10: 000000000f258910 R11: 0000000000000246 R12: 0000000000000004
[   34.381110][  T294] R13: 0000000066beab2e R14: 0000000000496600 R15: 0000000000000000
| [   34.383268][  T294] 1 lock held by ip/294:
| [ 34.383401][ T294] #0: ffffffffa63dcac8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   34.383782][  T294]
| [   34.383782][  T294] stack backtrace:
[   34.384223][  T294] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   34.384699][  T294] Call Trace:
[   34.384822][  T294]  <TASK>
[ 34.384909][ T294] dump_stack_lvl (lib/dump_stack.c:122) 
[ 34.385077][ T294] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 34.385241][ T294] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) 
[ 34.385411][ T294] br_get_link_af_size_filtered (net/bridge/br_private.h:1611 net/bridge/br_private.h:1608 net/bridge/br_netlink.c:107) 
[ 34.385618][ T294] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) 
[ 34.385784][ T294] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 34.385995][ T294] br_add_if (net/bridge/br_if.c:692) 
[ 34.386124][ T294] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 34.386294][ T294] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 34.386596][ T294] do_setlink (net/core/rtnetlink.c:2907) 
[ 34.386765][ T294] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 34.386917][ T294] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 34.387079][ T294] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 34.387243][ T294] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 34.387522][ T294] ? __kernel_text_address (kernel/extable.c:79) 
[ 34.387686][ T294] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 34.387850][ T294] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 34.388052][ T294] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 34.388222][ T294] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 34.388389][ T294] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 34.388553][ T294] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 34.388708][ T294] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 34.388839][ T294] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 34.389005][ T294] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 34.389175][ T294] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 34.389343][ T294] ? 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) 
[ 34.389596][ T294] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 34.389768][ T294] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 34.389971][ T294] ? __create_object (mm/kmemleak.c:751) 
[ 34.390133][ T294] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 34.390396][ T294] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 34.390526][ T294] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 34.390690][ T294] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 34.390853][ T294] ? 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) 
[ 34.391014][ T294] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 34.391141][ T294] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 34.391297][ T294] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 34.391459][ T294] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 34.391621][ T294] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 34.391803][ T294] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 34.391966][ T294] ? 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) 
[ 34.392127][ T294] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 34.392291][ T294] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 34.392453][ T294] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 34.392701][ T294] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 34.392865][ T294] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 34.393025][ T294] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 34.393192][ T294] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 34.393467][ T294] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 34.393629][ T294] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 34.393791][ T294] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 34.393989][ T294] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 34.394160][ T294] ___sys_sendmsg (net/socket.c:2653) 
[ 34.394322][ T294] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 34.394500][ T294] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 34.394664][ T294] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 34.394825][ T294] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 34.395023][ T294] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 34.395184][ T294] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 34.395348][ T294] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 34.395640][ T294] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 34.395809][ T294] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 34.395975][ T294] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 34.396140][ T294] ? __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) 
[ 34.396424][ T294] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 34.396585][ T294] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   34.396786][  T294] RIP: 0033:0x7f9881be07b7
[ 34.396949][ T294] 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)
[   34.397522][  T294] RSP: 002b:00007ffce392dfb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   34.397769][  T294] RAX: ffffffffffffffda RBX: 00007ffce392e6f0 RCX: 00007f9881be07b7
[   34.398009][  T294] RDX: 0000000000000000 RSI: 00007ffce392e020 RDI: 0000000000000005
[   34.398254][  T294] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   34.398581][  T294] R10: 000000000f258910 R11: 0000000000000246 R12: 0000000000000004


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