======================================
| [   37.247801][  T347] 1 lock held by ip/347:
| [ 37.247943][ T347] #0: ffffffffab7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   37.248261][  T347]
| [   37.248261][  T347] stack backtrace:
[   37.248734][  T347] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   37.249116][  T347] Call Trace:
[   37.249252][  T347]  <TASK>
[ 37.249342][ T347] dump_stack_lvl (lib/dump_stack.c:122) 
[ 37.249522][ T347] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 37.249697][ T347] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 37.249986][ T347] 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
[ 37.250233][ T347] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 37.250431][ T347] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 37.250654][ T347] br_add_if (net/bridge/br_if.c:692) bridge
[ 37.250855][ T347] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 37.251028][ T347] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 37.251242][ T347] do_setlink (net/core/rtnetlink.c:2907) 
[ 37.251415][ T347] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 37.251587][ T347] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 37.251757][ T347] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 37.251925][ T347] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 37.252102][ T347] ? __kernel_text_address (kernel/extable.c:79) 
[ 37.252271][ T347] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 37.252440][ T347] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 37.252655][ T347] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 37.252842][ T347] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 37.253012][ T347] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 37.253183][ T347] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 37.253355][ T347] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 37.253492][ T347] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 37.253669][ T347] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 37.253846][ T347] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 37.254030][ T347] ? 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) 
[ 37.254202][ T347] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 37.254378][ T347] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 37.254590][ T347] ? __create_object (mm/kmemleak.c:751) 
[ 37.254766][ T347] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 37.254947][ T347] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 37.255079][ T347] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 37.255252][ T347] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 37.255422][ T347] ? 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) 
[ 37.255592][ T347] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 37.255728][ T347] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 37.255905][ T347] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 37.256079][ T347] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 37.256248][ T347] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 37.256439][ T347] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 37.256612][ T347] ? 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) 
[ 37.256785][ T347] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 37.256962][ T347] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 37.257130][ T347] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 37.257309][ T347] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 37.257483][ T347] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 37.257657][ T347] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 37.257833][ T347] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 37.258013][ T347] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 37.258190][ T347] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 37.258358][ T347] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 37.258566][ T347] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 37.258748][ T347] ___sys_sendmsg (net/socket.c:2653) 
[ 37.258923][ T347] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 37.259099][ T347] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 37.259273][ T347] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 37.259438][ T347] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 37.259659][ T347] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 37.259841][ T347] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 37.260018][ T347] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 37.260228][ T347] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 37.260408][ T347] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 37.260585][ T347] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 37.260751][ T347] ? __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) 
[ 37.260939][ T347] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 37.261112][ T347] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   37.261320][  T347] RIP: 0033:0x7f3efb8aa7b7
[ 37.261501][ T347] 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)
[   37.262091][  T347] RSP: 002b:00007ffcd20d63d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   37.262351][  T347] RAX: ffffffffffffffda RBX: 00007ffcd20d6b00 RCX: 00007f3efb8aa7b7
[   37.262605][  T347] RDX: 0000000000000000 RSI: 00007ffcd20d6440 RDI: 0000000000000005
[   37.262857][  T347] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   37.263112][  T347] R10: 00000000282a4910 R11: 0000000000000246 R12: 0000000000000004
[   37.263367][  T347] R13: 0000000066bea6d4 R14: 0000000000496600 R15: 0000000000000000
| [   37.265430][  T347] 1 lock held by ip/347:
| [ 37.265566][ T347] #0: ffffffffab7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   37.265883][  T347]
| [   37.265883][  T347] stack backtrace:
[   37.266357][  T347] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   37.266844][  T347] Call Trace:
[   37.266982][  T347]  <TASK>
[ 37.267075][ T347] dump_stack_lvl (lib/dump_stack.c:122) 
[ 37.267259][ T347] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 37.267427][ T347] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 37.267672][ T347] 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
[ 37.267920][ T347] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 37.268119][ T347] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 37.268328][ T347] br_add_if (net/bridge/br_if.c:692) bridge
[ 37.268529][ T347] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 37.268705][ T347] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 37.268917][ T347] do_setlink (net/core/rtnetlink.c:2907) 
[ 37.269085][ T347] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 37.269257][ T347] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 37.269425][ T347] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 37.269594][ T347] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 37.269779][ T347] ? __kernel_text_address (kernel/extable.c:79) 
[ 37.269946][ T347] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 37.270123][ T347] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 37.270334][ T347] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 37.270515][ T347] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 37.270684][ T347] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 37.270853][ T347] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 37.271024][ T347] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 37.271191][ T347] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 37.271366][ T347] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 37.271548][ T347] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 37.271730][ T347] ? 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) 
[ 37.271902][ T347] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 37.272076][ T347] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 37.272292][ T347] ? __create_object (mm/kmemleak.c:751) 
[ 37.272469][ T347] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 37.272646][ T347] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 37.272775][ T347] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 37.272943][ T347] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 37.273121][ T347] ? 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) 
[ 37.273291][ T347] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 37.273425][ T347] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 37.273597][ T347] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 37.273766][ T347] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 37.273946][ T347] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 37.274131][ T347] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 37.274305][ T347] ? 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) 
[ 37.274482][ T347] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 37.274659][ T347] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 37.274828][ T347] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 37.275002][ T347] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 37.275174][ T347] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 37.275343][ T347] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 37.275520][ T347] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 37.275699][ T347] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 37.275877][ T347] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 37.276049][ T347] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 37.276260][ T347] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 37.276440][ T347] ___sys_sendmsg (net/socket.c:2653) 
[ 37.276609][ T347] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 37.276782][ T347] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 37.276952][ T347] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 37.277121][ T347] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 37.277333][ T347] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 37.277505][ T347] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 37.277680][ T347] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 37.277893][ T347] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 37.278072][ T347] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 37.278241][ T347] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 37.278408][ T347] ? __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) 
[ 37.278604][ T347] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 37.278776][ T347] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   37.278986][  T347] RIP: 0033:0x7f3efb8aa7b7
[ 37.279164][ T347] 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)
[   37.279752][  T347] RSP: 002b:00007ffcd20d63d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   37.280010][  T347] RAX: ffffffffffffffda RBX: 00007ffcd20d6b00 RCX: 00007f3efb8aa7b7
[   37.280261][  T347] RDX: 0000000000000000 RSI: 00007ffcd20d6440 RDI: 0000000000000005
[   37.280509][  T347] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   37.280761][  T347] R10: 00000000282a4910 R11: 0000000000000246 R12: 0000000000000004
[   37.281012][  T347] R13: 0000000066bea6d4 R14: 0000000000496600 R15: 0000000000000000
| [   37.283456][  T347] 1 lock held by ip/347:
| [ 37.283587][ T347] #0: ffffffffab7bc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   37.284108][  T347]
| [   37.284108][  T347] stack backtrace:
[   37.284574][  T347] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   37.284952][  T347] Call Trace:
[   37.285081][  T347]  <TASK>
[ 37.285170][ T347] dump_stack_lvl (lib/dump_stack.c:122) 
[ 37.285344][ T347] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 37.285615][ T347] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 37.285866][ T347] 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
[ 37.286115][ T347] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 37.286312][ T347] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 37.286620][ T347] br_add_if (net/bridge/br_if.c:692) bridge
[ 37.286823][ T347] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 37.287002][ T347] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 37.287323][ T347] do_setlink (net/core/rtnetlink.c:2907) 
[ 37.287647][ T347] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 37.287918][ T347] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 37.288173][ T347] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 37.288443][ T347] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 37.288877][ T347] ? __kernel_text_address (kernel/extable.c:79) 
[ 37.289128][ T347] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 37.289368][ T347] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 37.289692][ T347] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 37.290178][ T347] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 37.290451][ T347] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 37.290723][ T347] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 37.291005][ T347] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 37.291220][ T347] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 37.291504][ T347] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 37.291784][ T347] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 37.292079][ T347] ? 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) 
[ 37.292361][ T347] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 37.292815][ T347] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 37.293161][ T347] ? __create_object (mm/kmemleak.c:751) 
[ 37.293443][ T347] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 37.293727][ T347] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 37.294098][ T347] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 37.294371][ T347] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 37.294646][ T347] ? 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) 
[ 37.294919][ T347] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 37.295149][ T347] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 37.295395][ T347] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 37.295664][ T347] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 37.295932][ T347] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 37.296239][ T347] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 37.296676][ T347] ? 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) 
[ 37.296957][ T347] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 37.297240][ T347] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 37.297524][ T347] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 37.297977][ T347] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 37.298257][ T347] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 37.298532][ T347] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 37.298816][ T347] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 37.299280][ T347] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 37.299558][ T347] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 37.299847][ T347] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 37.300179][ T347] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 37.300645][ T347] ___sys_sendmsg (net/socket.c:2653) 
[ 37.300925][ T347] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 37.301207][ T347] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 37.301494][ T347] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 37.301935][ T347] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 37.302267][ T347] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 37.302540][ T347] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 37.302822][ T347] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 37.303310][ T347] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 37.303576][ T347] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 37.303837][ T347] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 37.304085][ T347] ? __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) 
[ 37.304373][ T347] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 37.304630][ T347] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   37.304944][  T347] RIP: 0033:0x7f3efb8aa7b7
[ 37.305236][ T347] 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)
[   37.306367][  T347] RSP: 002b:00007ffcd20d63d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   37.306753][  T347] RAX: ffffffffffffffda RBX: 00007ffcd20d6b00 RCX: 00007f3efb8aa7b7
[   37.307310][  T347] RDX: 0000000000000000 RSI: 00007ffcd20d6440 RDI: 0000000000000005
[   37.307687][  T347] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   37.308071][  T347] R10: 00000000282a4910 R11: 0000000000000246 R12: 0000000000000004


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