======================================
| [  100.231087][  T657] 1 lock held by ip/657:
| [ 100.231316][ T657] #0: ffffffff94bbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  100.231846][  T657]
| [  100.231846][  T657] stack backtrace:
[  100.232615][  T657] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  100.233229][  T657] Call Trace:
[  100.233457][  T657]  <TASK>
[ 100.233611][ T657] dump_stack_lvl (lib/dump_stack.c:122) 
[ 100.233888][ T657] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 100.234167][ T657] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 100.234582][ T657] 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
[ 100.234961][ T657] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 100.235274][ T657] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 100.235618][ T657] br_add_if (net/bridge/br_if.c:692) bridge
[ 100.235926][ T657] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 100.236191][ T657] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 100.236578][ T657] do_setlink (net/core/rtnetlink.c:2907) 
[ 100.236855][ T657] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 100.237113][ T657] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 100.237391][ T657] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 100.237648][ T657] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 100.237908][ T657] ? __kernel_text_address (kernel/extable.c:79) 
[ 100.238169][ T657] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 100.238427][ T657] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 100.238759][ T657] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 100.239048][ T657] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 100.239304][ T657] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 100.239560][ T657] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 100.239815][ T657] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 100.240018][ T657] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 100.240319][ T657] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 100.240617][ T657] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 100.240913][ T657] ? 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) 
[ 100.241195][ T657] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 100.241463][ T657] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 100.241779][ T657] ? __create_object (mm/kmemleak.c:751) 
[ 100.242043][ T657] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 100.242322][ T657] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 100.242558][ T657] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 100.242843][ T657] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 100.243112][ T657] ? 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) 
[ 100.243389][ T657] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 100.243600][ T657] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 100.243877][ T657] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 100.244148][ T657] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 100.244439][ T657] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 100.244744][ T657] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 100.245022][ T657] ? 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) 
[ 100.245306][ T657] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 100.245606][ T657] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 100.245886][ T657] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 100.246159][ T657] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 100.246446][ T657] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 100.246717][ T657] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 100.247017][ T657] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 100.247319][ T657] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 100.247593][ T657] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 100.247869][ T657] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 100.248224][ T657] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 100.248535][ T657] ___sys_sendmsg (net/socket.c:2653) 
[ 100.248817][ T657] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 100.249084][ T657] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 100.249373][ T657] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 100.249653][ T657] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 100.249985][ T657] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 100.250266][ T657] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 100.250541][ T657] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 100.250887][ T657] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 100.251171][ T657] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 100.251452][ T657] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 100.251730][ T657] ? __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) 
[ 100.252041][ T657] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 100.252328][ T657] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  100.252661][  T657] RIP: 0033:0x7f14f735e7b7
[ 100.252959][ T657] 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)
[  100.253926][  T657] RSP: 002b:00007ffd5e91cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  100.254334][  T657] RAX: ffffffffffffffda RBX: 00007ffd5e91d3a0 RCX: 00007f14f735e7b7
[  100.254746][  T657] RDX: 0000000000000000 RSI: 00007ffd5e91cce0 RDI: 0000000000000005
[  100.255156][  T657] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  100.255573][  T657] R10: 000000003088b910 R11: 0000000000000246 R12: 0000000000000004
[  100.255988][  T657] R13: 0000000066bea0e2 R14: 0000000000496600 R15: 0000000000000000
| [  100.259327][  T657] 1 lock held by ip/657:
| [ 100.259556][ T657] #0: ffffffff94bbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  100.260052][  T657]
| [  100.260052][  T657] stack backtrace:
[  100.260850][  T657] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  100.261429][  T657] Call Trace:
[  100.261638][  T657]  <TASK>
[ 100.261784][ T657] dump_stack_lvl (lib/dump_stack.c:122) 
[ 100.262075][ T657] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 100.262349][ T657] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 100.262740][ T657] 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
[ 100.263145][ T657] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 100.263478][ T657] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 100.263818][ T657] br_add_if (net/bridge/br_if.c:692) bridge
[ 100.264150][ T657] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 100.264424][ T657] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 100.264780][ T657] do_setlink (net/core/rtnetlink.c:2907) 
[ 100.265032][ T657] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 100.265320][ T657] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 100.265603][ T657] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 100.265777][ T657] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 100.265947][ T657] ? __kernel_text_address (kernel/extable.c:79) 
[ 100.266115][ T657] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 100.266286][ T657] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 100.266500][ T657] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 100.266680][ T657] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 100.266847][ T657] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 100.267019][ T657] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 100.267205][ T657] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 100.267341][ T657] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 100.267528][ T657] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 100.267709][ T657] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 100.267895][ T657] ? 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) 
[ 100.268064][ T657] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 100.268243][ T657] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 100.268457][ T657] ? __create_object (mm/kmemleak.c:751) 
[ 100.268632][ T657] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 100.268809][ T657] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 100.268944][ T657] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 100.269120][ T657] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 100.269298][ T657] ? 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) 
[ 100.269467][ T657] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 100.269603][ T657] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 100.269790][ T657] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 100.269965][ T657] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 100.270138][ T657] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 100.270326][ T657] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 100.270505][ T657] ? 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) 
[ 100.270689][ T657] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 100.270865][ T657] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 100.271036][ T657] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 100.271211][ T657] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 100.271384][ T657] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 100.271557][ T657] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 100.271738][ T657] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 100.271916][ T657] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 100.272091][ T657] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 100.272269][ T657] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 100.272477][ T657] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 100.272660][ T657] ___sys_sendmsg (net/socket.c:2653) 
[ 100.272832][ T657] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 100.273005][ T657] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 100.273179][ T657] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 100.273345][ T657] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 100.273555][ T657] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 100.273729][ T657] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 100.273903][ T657] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 100.274113][ T657] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 100.274289][ T657] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 100.274460][ T657] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 100.274625][ T657] ? __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) 
[ 100.274815][ T657] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 100.274988][ T657] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  100.275199][  T657] RIP: 0033:0x7f14f735e7b7
[ 100.275388][ T657] 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)
[  100.275973][  T657] RSP: 002b:00007ffd5e91cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  100.276229][  T657] RAX: ffffffffffffffda RBX: 00007ffd5e91d3a0 RCX: 00007f14f735e7b7
[  100.276483][  T657] RDX: 0000000000000000 RSI: 00007ffd5e91cce0 RDI: 0000000000000005
[  100.276733][  T657] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  100.276978][  T657] R10: 000000003088b910 R11: 0000000000000246 R12: 0000000000000004
[  100.277232][  T657] R13: 0000000066bea0e2 R14: 0000000000496600 R15: 0000000000000000
| [  100.279567][  T657] 1 lock held by ip/657:
| [ 100.279698][ T657] #0: ffffffff94bbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  100.280097][  T657]
| [  100.280097][  T657] stack backtrace:
[  100.280559][  T657] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  100.281017][  T657] Call Trace:
[  100.281148][  T657]  <TASK>
[ 100.281236][ T657] dump_stack_lvl (lib/dump_stack.c:122) 
[ 100.281414][ T657] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 100.281679][ T657] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 100.281930][ T657] 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
[ 100.282182][ T657] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 100.282475][ T657] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 100.282683][ T657] br_add_if (net/bridge/br_if.c:692) bridge
[ 100.282881][ T657] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 100.283048][ T657] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 100.283357][ T657] do_setlink (net/core/rtnetlink.c:2907) 
[ 100.283525][ T657] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 100.283697][ T657] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 100.283864][ T657] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 100.284130][ T657] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 100.284298][ T657] ? __kernel_text_address (kernel/extable.c:79) 
[ 100.284465][ T657] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 100.284631][ T657] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 100.284936][ T657] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 100.285121][ T657] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 100.285292][ T657] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 100.285478][ T657] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 100.285671][ T657] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 100.285903][ T657] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 100.286077][ T657] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 100.286262][ T657] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 100.286439][ T657] ? 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) 
[ 100.286704][ T657] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 100.286879][ T657] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 100.287087][ T657] ? __create_object (mm/kmemleak.c:751) 
[ 100.287258][ T657] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 100.287528][ T657] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 100.287656][ T657] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 100.287825][ T657] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 100.287991][ T657] ? 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) 
[ 100.288156][ T657] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 100.288392][ T657] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 100.288572][ T657] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 100.288740][ T657] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 100.288909][ T657] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 100.289093][ T657] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 100.289261][ T657] ? 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) 
[ 100.289430][ T657] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 100.289599][ T657] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 100.289861][ T657] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 100.290041][ T657] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 100.290211][ T657] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 100.290377][ T657] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 100.290548][ T657] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 100.290825][ T657] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 100.290998][ T657] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 100.291172][ T657] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 100.291378][ T657] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 100.291753][ T657] ___sys_sendmsg (net/socket.c:2653) 
[ 100.291926][ T657] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 100.292095][ T657] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 100.292267][ T657] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 100.292534][ T657] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 100.292742][ T657] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 100.292913][ T657] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 100.293087][ T657] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 100.293407][ T657] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 100.293584][ T657] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 100.293753][ T657] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 100.293924][ T657] ? __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) 
[ 100.294213][ T657] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 100.294387][ T657] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  100.294595][  T657] RIP: 0033:0x7f14f735e7b7
[ 100.294779][ T657] 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)
[  100.295519][  T657] RSP: 002b:00007ffd5e91cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  100.295887][  T657] RAX: ffffffffffffffda RBX: 00007ffd5e91d3a0 RCX: 00007f14f735e7b7
[  100.296150][  T657] RDX: 0000000000000000 RSI: 00007ffd5e91cce0 RDI: 0000000000000005
[  100.296411][  T657] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  100.296768][  T657] R10: 000000003088b910 R11: 0000000000000246 R12: 0000000000000004
[  100.297020][  T657] R13: 0000000066bea0e2 R14: 0000000000496600 R15: 0000000000000000
| [  115.921723][  T704] 1 lock held by bridge/704:
| [ 115.921894][ T704] #0: ffffffff94bbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  115.922273][  T704]
| [  115.922273][  T704] stack backtrace:
[  115.922739][  T704] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  115.923111][  T704] Call Trace:
[  115.923243][  T704]  <TASK>
[ 115.923336][ T704] dump_stack_lvl (lib/dump_stack.c:122) 
[ 115.923514][ T704] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 115.923685][ T704] br_get_link_af_size_filtered (net/bridge/br_private.h:1605 net/bridge/br_private.h:1602 net/bridge/br_netlink.c:110) bridge
[ 115.923953][ T704] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 115.924155][ T704] br_setlink (net/bridge/br_netlink.c:669 net/bridge/br_netlink.c:1136) bridge
[ 115.924352][ T704] ? __pfx_br_setlink (net/bridge/br_netlink.c:1085) bridge
[ 115.924555][ T704] ? lock_acquire.part.0 (kernel/locking/lockdep.c:466 kernel/locking/lockdep.c:5761) 
[ 115.924725][ T704] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
[ 115.924892][ T704] ? 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) 
[ 115.925058][ T704] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:129) 
[ 115.925233][ T704] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:104) 
[ 115.925470][ T704] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
[ 115.925633][ T704] ? lock_acquire (kernel/locking/lockdep.c:5732) 
[ 115.925801][ T704] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 52)) 
[ 115.925965][ T704] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:618 kernel/locking/mutex.c:752) 
[ 115.926138][ T704] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 115.926303][ T704] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
[ 115.926469][ T704] ? __pfx___mutex_lock (kernel/locking/mutex.c:751) 
[ 115.926633][ T704] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 115.926797][ T704] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5724) 
[ 115.926959][ T704] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 115.927129][ T704] rtnl_bridge_setlink (net/core/rtnetlink.c:5225) 
[ 115.927299][ T704] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 115.927474][ T704] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 115.927638][ T704] ? 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) 
[ 115.927806][ T704] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 115.927938][ T704] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 115.928112][ T704] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 115.928283][ T704] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 115.928450][ T704] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 115.928637][ T704] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 115.928812][ T704] ? 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) 
[ 115.928987][ T704] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 115.929157][ T704] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 115.929323][ T704] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 115.929500][ T704] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 115.929676][ T704] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 115.929845][ T704] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 115.930025][ T704] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 115.930211][ T704] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 115.930384][ T704] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 115.930546][ T704] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 115.930753][ T704] ? 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) 
[ 115.930920][ T704] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3758 kernel/locking/lockdep.c:3781 kernel/locking/lockdep.c:3836) 
[ 115.931099][ T704] ___sys_sendmsg (net/socket.c:2653) 
[ 115.931265][ T704] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 115.931431][ T704] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 115.931609][ T704] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 115.931784][ T704] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 115.931961][ T704] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 115.932132][ T704] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 115.932296][ T704] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 115.932467][ T704] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 115.932636][ T704] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 115.932825][ T704] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 115.932999][ T704] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  115.933212][  T704] RIP: 0033:0x7f90d0db87b7
[ 115.933391][ T704] 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)
[  115.933963][  T704] RSP: 002b:00007ffc5d638088 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  115.934218][  T704] RAX: ffffffffffffffda RBX: 000000000000ffff RCX: 00007f90d0db87b7
[  115.934469][  T704] RDX: 0000000000000000 RSI: 00007ffc5d6380f0 RDI: 0000000000000005
[  115.934719][  T704] RBP: 00007ffc5d6381e0 R08: 0000000000000034 R09: 0000000000000000
[  115.934969][  T704] R10: 00007f90d0c71708 R11: 0000000000000246 R12: 0000000000000001


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