======================================
| [  128.437670][ T1196] 1 lock held by bridge/1196:
| [ 128.437919][ T1196] #0: ffffffff8b1dcac8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  128.438394][ T1196]
| [  128.438394][ T1196] stack backtrace:
[  128.439271][ T1196] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  128.439770][ T1196] Call Trace:
[  128.439953][ T1196]  <TASK>
[ 128.440074][ T1196] dump_stack_lvl (lib/dump_stack.c:122) 
[ 128.440333][ T1196] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 128.440586][ T1196] br_get_link_af_size_filtered (net/bridge/br_private.h:1605 net/bridge/br_private.h:1602 net/bridge/br_netlink.c:110) 
[ 128.440901][ T1196] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) 
[ 128.441140][ T1196] br_setlink (net/bridge/br_netlink.c:669 net/bridge/br_netlink.c:1136) 
[ 128.441287][ T1196] ? __pfx_br_setlink (net/bridge/br_netlink.c:1085) 
[ 128.441511][ T1196] ? lock_acquire.part.0 (kernel/locking/lockdep.c:466 kernel/locking/lockdep.c:5761) 
[ 128.441754][ T1196] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
[ 128.442004][ T1196] ? 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) 
[ 128.442260][ T1196] ? __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) 
[ 128.442516][ T1196] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:104) 
[ 128.442814][ T1196] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
[ 128.443053][ T1196] ? lock_acquire (kernel/locking/lockdep.c:5732) 
[ 128.443285][ T1196] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 52)) 
[ 128.443529][ T1196] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:618 kernel/locking/mutex.c:752) 
[ 128.443785][ T1196] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 128.444032][ T1196] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
[ 128.444273][ T1196] ? __pfx___mutex_lock (kernel/locking/mutex.c:751) 
[ 128.444518][ T1196] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 128.444740][ T1196] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5724) 
[ 128.444981][ T1196] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 128.445221][ T1196] rtnl_bridge_setlink (net/core/rtnetlink.c:5225) 
[ 128.445475][ T1196] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 128.445725][ T1196] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 128.445969][ T1196] ? 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) 
[ 128.446206][ T1196] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 128.446403][ T1196] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 128.446642][ T1196] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 128.446878][ T1196] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 128.447116][ T1196] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 128.447383][ T1196] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 128.447629][ T1196] ? 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) 
[ 128.447877][ T1196] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 128.448126][ T1196] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 128.448371][ T1196] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 128.448609][ T1196] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 128.448866][ T1196] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 128.449112][ T1196] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 128.449362][ T1196] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 128.449619][ T1196] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 128.449851][ T1196] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 128.450101][ T1196] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 128.450402][ T1196] ? 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) 
[ 128.450655][ T1196] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3758 kernel/locking/lockdep.c:3781 kernel/locking/lockdep.c:3836) 
[ 128.450901][ T1196] ___sys_sendmsg (net/socket.c:2653) 
[ 128.451134][ T1196] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 128.451373][ T1196] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 128.451624][ T1196] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 128.451885][ T1196] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 128.452131][ T1196] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 128.452385][ T1196] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 128.452614][ T1196] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 128.452873][ T1196] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 128.453106][ T1196] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 128.453388][ T1196] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 128.453626][ T1196] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  128.453939][ T1196] RIP: 0033:0x7f8f86e577b7
[ 128.454198][ T1196] 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)
[  128.455023][ T1196] RSP: 002b:00007fffb5aef538 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  128.455387][ T1196] RAX: ffffffffffffffda RBX: 000000000000ffff RCX: 00007f8f86e577b7
[  128.455748][ T1196] RDX: 0000000000000000 RSI: 00007fffb5aef5a0 RDI: 0000000000000005
[  128.456125][ T1196] RBP: 00007fffb5aef690 R08: 0000000000000034 R09: 0000000000000000
[  128.456501][ T1196] R10: 00007f8f86d10708 R11: 0000000000000246 R12: 000000000000000a
[  128.456884][ T1196] R13: 0000000066beac57 R14: 0000000000423360 R15: 00007fffb5aefc50
| [  134.079661][ T1250] 1 lock held by ip/1250:
| [ 134.079779][ T1250] #0: ffffffff8b1dcac8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  134.080060][ T1250]
| [  134.080060][ T1250] stack backtrace:
[  134.080470][ T1250] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  134.080795][ T1250] Call Trace:
[  134.080910][ T1250]  <TASK>
[ 134.080993][ T1250] dump_stack_lvl (lib/dump_stack.c:122) 
[ 134.081150][ T1250] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 134.081302][ T1250] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) 
[ 134.081458][ T1250] br_get_link_af_size_filtered (net/bridge/br_private.h:930 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) 
[ 134.081648][ T1250] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) 
[ 134.081801][ T1250] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 134.081991][ T1250] br_add_if (net/bridge/br_if.c:692) 
[ 134.082116][ T1250] do_setlink (net/core/rtnetlink.c:2907) 
[ 134.082272][ T1250] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 134.082424][ T1250] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 134.082575][ T1250] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 134.082724][ T1250] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 134.082875][ T1250] ? __kernel_text_address (kernel/extable.c:79) 
[ 134.083027][ T1250] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 134.083178][ T1250] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 134.083365][ T1250] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 134.083529][ T1250] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 134.083694][ T1250] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 134.083845][ T1250] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 134.083997][ T1250] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 134.084115][ T1250] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 134.084269][ T1250] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 134.084428][ T1250] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 134.084588][ T1250] ? 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) 
[ 134.084744][ T1250] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 134.084898][ T1250] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 134.085087][ T1250] ? __create_object (mm/kmemleak.c:751) 
[ 134.085237][ T1250] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 134.085394][ T1250] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 134.085507][ T1250] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 134.085661][ T1250] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 134.085808][ T1250] ? 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) 
[ 134.085956][ T1250] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 134.086078][ T1250] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 134.086230][ T1250] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 134.086385][ T1250] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 134.086538][ T1250] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 134.086703][ T1250] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 134.086853][ T1250] ? 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) 
[ 134.087007][ T1250] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 134.087160][ T1250] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 134.087315][ T1250] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 134.087470][ T1250] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 134.087627][ T1250] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 134.087776][ T1250] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 134.087939][ T1250] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 134.088108][ T1250] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 134.088274][ T1250] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 134.088439][ T1250] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 134.088651][ T1250] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 134.088826][ T1250] ___sys_sendmsg (net/socket.c:2653) 
[ 134.088979][ T1250] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 134.089131][ T1250] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 134.089282][ T1250] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 134.089431][ T1250] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 134.089618][ T1250] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 134.089771][ T1250] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 134.089930][ T1250] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 134.090118][ T1250] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 134.090275][ T1250] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 134.090431][ T1250] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 134.090579][ T1250] ? __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) 
[ 134.090746][ T1250] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 134.090896][ T1250] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  134.091088][ T1250] RIP: 0033:0x7fdcded8f7b7
[ 134.091246][ T1250] 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)
[  134.091769][ T1250] RSP: 002b:00007fffe51d1188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  134.091995][ T1250] RAX: ffffffffffffffda RBX: 00007fffe51d18c0 RCX: 00007fdcded8f7b7
[  134.092222][ T1250] RDX: 0000000000000000 RSI: 00007fffe51d11f0 RDI: 0000000000000005
[  134.092446][ T1250] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  134.092668][ T1250] R10: 0000000012613910 R11: 0000000000000246 R12: 0000000000000004
[  134.092893][ T1250] R13: 0000000066beac5c R14: 0000000000496600 R15: 0000000000000000
| [  134.094690][ T1250] 1 lock held by ip/1250:
| [ 134.094803][ T1250] #0: ffffffff8b1dcac8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  134.095073][ T1250]
| [  134.095073][ T1250] stack backtrace:
[  134.095479][ T1250] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  134.095810][ T1250] Call Trace:
[  134.095923][ T1250]  <TASK>
[ 134.096001][ T1250] dump_stack_lvl (lib/dump_stack.c:122) 
[ 134.096157][ T1250] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 134.096307][ T1250] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) 
[ 134.096460][ T1250] br_get_link_af_size_filtered (net/bridge/br_private.h:453 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) 
[ 134.096649][ T1250] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) 
[ 134.096804][ T1250] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 134.096989][ T1250] br_add_if (net/bridge/br_if.c:692) 
[ 134.097114][ T1250] do_setlink (net/core/rtnetlink.c:2907) 
[ 134.097265][ T1250] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 134.097416][ T1250] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 134.097565][ T1250] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 134.097712][ T1250] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 134.097865][ T1250] ? __kernel_text_address (kernel/extable.c:79) 
[ 134.098202][ T1250] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 134.098354][ T1250] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 134.098541][ T1250] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 134.098701][ T1250] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 134.098850][ T1250] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 134.099001][ T1250] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 134.099153][ T1250] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 134.099271][ T1250] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 134.099426][ T1250] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 134.099584][ T1250] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 134.099739][ T1250] ? 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) 
[ 134.099890][ T1250] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 134.100046][ T1250] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 134.100234][ T1250] ? __create_object (mm/kmemleak.c:751) 
[ 134.100385][ T1250] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 134.100542][ T1250] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 134.100657][ T1250] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 134.100814][ T1250] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 134.100963][ T1250] ? 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) 
[ 134.101113][ T1250] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 134.101231][ T1250] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 134.101382][ T1250] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 134.101533][ T1250] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 134.101682][ T1250] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 134.101845][ T1250] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 134.102001][ T1250] ? 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) 
[ 134.102153][ T1250] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 134.102431][ T1250] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 134.102580][ T1250] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 134.102735][ T1250] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 134.102889][ T1250] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 134.103129][ T1250] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 134.103279][ T1250] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 134.103439][ T1250] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 134.103593][ T1250] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 134.103833][ T1250] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 134.104018][ T1250] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 134.104180][ T1250] ___sys_sendmsg (net/socket.c:2653) 
[ 134.104335][ T1250] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 134.104572][ T1250] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 134.104727][ T1250] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 134.104877][ T1250] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 134.105061][ T1250] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 134.105297][ T1250] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 134.105452][ T1250] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 134.105636][ T1250] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 134.105791][ T1250] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 134.106025][ T1250] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 134.106175][ T1250] ? __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) 
[ 134.106348][ T1250] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 134.106499][ T1250] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  134.106768][ T1250] RIP: 0033:0x7fdcded8f7b7
[ 134.106923][ T1250] 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)
[  134.107535][ T1250] RSP: 002b:00007fffe51d1188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  134.107765][ T1250] RAX: ffffffffffffffda RBX: 00007fffe51d18c0 RCX: 00007fdcded8f7b7
[  134.107985][ T1250] RDX: 0000000000000000 RSI: 00007fffe51d11f0 RDI: 0000000000000005
[  134.108296][ T1250] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  134.108517][ T1250] R10: 0000000012613910 R11: 0000000000000246 R12: 0000000000000004
[  134.108742][ T1250] R13: 0000000066beac5c R14: 0000000000496600 R15: 0000000000000000
| [  134.110782][ T1250] 1 lock held by ip/1250:
| [ 134.110896][ T1250] #0: ffffffff8b1dcac8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  134.111168][ T1250]
| [  134.111168][ T1250] stack backtrace:
[  134.111580][ T1250] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  134.111994][ T1250] Call Trace:
[  134.112108][ T1250]  <TASK>
[ 134.112187][ T1250] dump_stack_lvl (lib/dump_stack.c:122) 
[ 134.112340][ T1250] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 134.112662][ T1250] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) 
[ 134.112819][ T1250] br_get_link_af_size_filtered (net/bridge/br_private.h:1611 net/bridge/br_private.h:1608 net/bridge/br_netlink.c:107) 
[ 134.113018][ T1250] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) 
[ 134.113168][ T1250] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 134.113444][ T1250] br_add_if (net/bridge/br_if.c:692) 
[ 134.113572][ T1250] do_setlink (net/core/rtnetlink.c:2907) 
[ 134.113728][ T1250] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 134.113879][ T1250] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 134.114114][ T1250] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 134.114264][ T1250] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 134.114416][ T1250] ? __kernel_text_address (kernel/extable.c:79) 
[ 134.114565][ T1250] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 134.114800][ T1250] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 134.114985][ T1250] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 134.115147][ T1250] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 134.115296][ T1250] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 134.115535][ T1250] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 134.115685][ T1250] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 134.115801][ T1250] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 134.115953][ T1250] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 134.116108][ T1250] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 134.116352][ T1250] ? 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) 
[ 134.116501][ T1250] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 134.116655][ T1250] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 134.116846][ T1250] ? __create_object (mm/kmemleak.c:751) 
[ 134.117080][ T1250] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 134.117234][ T1250] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 134.117348][ T1250] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 134.117498][ T1250] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 134.117734][ T1250] ? 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) 
[ 134.117881][ T1250] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 134.117998][ T1250] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 134.118149][ T1250] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 134.118303][ T1250] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 134.118544][ T1250] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 134.118706][ T1250] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 134.118857][ T1250] ? 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) 
[ 134.119023][ T1250] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 134.119189][ T1250] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 134.119353][ T1250] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 134.119519][ T1250] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 134.119691][ T1250] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 134.119937][ T1250] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 134.120101][ T1250] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 134.120270][ T1250] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 134.120434][ T1250] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 134.120682][ T1250] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 134.120886][ T1250] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 134.121060][ T1250] ___sys_sendmsg (net/socket.c:2653) 
[ 134.121220][ T1250] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 134.121455][ T1250] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 134.121607][ T1250] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 134.121758][ T1250] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 134.121943][ T1250] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 134.122180][ T1250] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 134.122335][ T1250] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 134.122520][ T1250] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 134.122679][ T1250] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 134.122918][ T1250] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 134.123068][ T1250] ? __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) 
[ 134.123236][ T1250] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 134.123385][ T1250] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  134.123657][ T1250] RIP: 0033:0x7fdcded8f7b7
[ 134.123830][ T1250] 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)
[  134.124462][ T1250] RSP: 002b:00007fffe51d1188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  134.124687][ T1250] RAX: ffffffffffffffda RBX: 00007fffe51d18c0 RCX: 00007fdcded8f7b7
[  134.124915][ T1250] RDX: 0000000000000000 RSI: 00007fffe51d11f0 RDI: 0000000000000005
[  134.125149][ T1250] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  134.125378][ T1250] R10: 0000000012613910 R11: 0000000000000246 R12: 0000000000000004


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