======================================
| [  125.274937][ T1194] 1 lock held by bridge/1194:
| [ 125.275101][ T1194] #0: ffffffffb7bdcac8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  125.275486][ T1194]
| [  125.275486][ T1194] stack backtrace:
[  125.275898][ T1194] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  125.276222][ T1194] Call Trace:
[  125.276340][ T1194]  <TASK>
[ 125.276419][ T1194] dump_stack_lvl (lib/dump_stack.c:122) 
[ 125.276576][ T1194] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 125.276731][ T1194] br_get_link_af_size_filtered (net/bridge/br_private.h:1605 net/bridge/br_private.h:1602 net/bridge/br_netlink.c:110) 
[ 125.276925][ T1194] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) 
[ 125.277080][ T1194] br_setlink (net/bridge/br_netlink.c:669 net/bridge/br_netlink.c:1136) 
[ 125.277194][ T1194] ? __pfx_br_setlink (net/bridge/br_netlink.c:1085) 
[ 125.277349][ T1194] ? lock_acquire.part.0 (kernel/locking/lockdep.c:466 kernel/locking/lockdep.c:5761) 
[ 125.277498][ T1194] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
[ 125.277648][ T1194] ? 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) 
[ 125.277798][ T1194] ? __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) 
[ 125.277951][ T1194] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:104) 
[ 125.278141][ T1194] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
[ 125.278288][ T1194] ? lock_acquire (kernel/locking/lockdep.c:5732) 
[ 125.278436][ T1194] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 52)) 
[ 125.278584][ T1194] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:618 kernel/locking/mutex.c:752) 
[ 125.278736][ T1194] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 125.278884][ T1194] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
[ 125.279040][ T1194] ? __pfx___mutex_lock (kernel/locking/mutex.c:751) 
[ 125.279195][ T1194] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 125.279346][ T1194] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5724) 
[ 125.279495][ T1194] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 125.279647][ T1194] rtnl_bridge_setlink (net/core/rtnetlink.c:5225) 
[ 125.279799][ T1194] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 125.279949][ T1194] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 125.280110][ T1194] ? 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) 
[ 125.280268][ T1194] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 125.280383][ T1194] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 125.280537][ T1194] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 125.280683][ T1194] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 125.280829][ T1194] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 125.280987][ T1194] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 125.281132][ T1194] ? 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) 
[ 125.281277][ T1194] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 125.281426][ T1194] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 125.281570][ T1194] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 125.281723][ T1194] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 125.281874][ T1194] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 125.282016][ T1194] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 125.282181][ T1194] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 125.282337][ T1194] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 125.282489][ T1194] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 125.282636][ T1194] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 125.282818][ T1194] ? 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) 
[ 125.282972][ T1194] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3758 kernel/locking/lockdep.c:3781 kernel/locking/lockdep.c:3836) 
[ 125.283126][ T1194] ___sys_sendmsg (net/socket.c:2653) 
[ 125.283273][ T1194] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 125.283421][ T1194] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 125.283575][ T1194] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 125.283734][ T1194] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 125.283884][ T1194] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 125.284032][ T1194] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 125.284180][ T1194] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 125.284338][ T1194] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 125.284489][ T1194] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 125.284657][ T1194] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 125.284809][ T1194] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  125.284995][ T1194] RIP: 0033:0x7fe8300897b7
[ 125.285151][ T1194] 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)
[  125.285674][ T1194] RSP: 002b:00007ffd16287e88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  125.285902][ T1194] RAX: ffffffffffffffda RBX: 000000000000ffff RCX: 00007fe8300897b7
[  125.286122][ T1194] RDX: 0000000000000000 RSI: 00007ffd16287ef0 RDI: 0000000000000005
[  125.286343][ T1194] RBP: 00007ffd16287fe0 R08: 0000000000000034 R09: 0000000000000000
[  125.286567][ T1194] R10: 00007fe82ff42708 R11: 0000000000000246 R12: 000000000000000a
[  125.286787][ T1194] R13: 0000000066beb2af R14: 0000000000423360 R15: 00007ffd162885a0
| [  130.573000][ T1249] 1 lock held by ip/1249:
| [ 130.573216][ T1249] #0: ffffffffb7bdcac8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  130.573502][ T1249]
| [  130.573502][ T1249] stack backtrace:
[  130.573913][ T1249] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  130.574244][ T1249] Call Trace:
[  130.574360][ T1249]  <TASK>
[ 130.574440][ T1249] dump_stack_lvl (lib/dump_stack.c:122) 
[ 130.574600][ T1249] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 130.574758][ T1249] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) 
[ 130.574915][ T1249] br_get_link_af_size_filtered (net/bridge/br_private.h:930 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) 
[ 130.575108][ T1249] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) 
[ 130.575256][ T1249] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 130.575446][ T1249] br_add_if (net/bridge/br_if.c:692) 
[ 130.575571][ T1249] do_setlink (net/core/rtnetlink.c:2907) 
[ 130.575723][ T1249] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 130.575875][ T1249] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 130.576030][ T1249] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 130.576182][ T1249] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 130.576336][ T1249] ? __kernel_text_address (kernel/extable.c:79) 
[ 130.576486][ T1249] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 130.576639][ T1249] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 130.576826][ T1249] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 130.576990][ T1249] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 130.577141][ T1249] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 130.577294][ T1249] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 130.577449][ T1249] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 130.577567][ T1249] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 130.577722][ T1249] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 130.577878][ T1249] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 130.578037][ T1249] ? 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) 
[ 130.578191][ T1249] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 130.578345][ T1249] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 130.578535][ T1249] ? __create_object (mm/kmemleak.c:751) 
[ 130.578692][ T1249] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 130.578850][ T1249] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 130.578980][ T1249] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 130.579133][ T1249] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 130.579283][ T1249] ? 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) 
[ 130.579434][ T1249] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 130.579553][ T1249] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 130.579707][ T1249] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 130.579862][ T1249] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 130.580016][ T1249] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 130.580179][ T1249] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 130.580330][ T1249] ? 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) 
[ 130.580482][ T1249] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 130.580635][ T1249] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 130.580787][ T1249] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 130.580944][ T1249] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 130.581099][ T1249] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 130.581247][ T1249] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 130.581401][ T1249] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 130.581560][ T1249] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 130.581714][ T1249] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 130.581862][ T1249] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 130.582049][ T1249] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 130.582215][ T1249] ___sys_sendmsg (net/socket.c:2653) 
[ 130.582370][ T1249] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 130.582525][ T1249] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 130.582679][ T1249] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 130.582827][ T1249] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 130.583015][ T1249] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 130.583169][ T1249] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 130.583326][ T1249] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 130.583521][ T1249] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 130.583680][ T1249] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 130.583831][ T1249] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 130.583983][ T1249] ? __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) 
[ 130.584154][ T1249] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 130.584306][ T1249] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  130.584498][ T1249] RIP: 0033:0x7f2f39c987b7
[ 130.584656][ T1249] 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)
[  130.585177][ T1249] RSP: 002b:00007ffca0694948 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  130.585407][ T1249] RAX: ffffffffffffffda RBX: 00007ffca0695080 RCX: 00007f2f39c987b7
[  130.585631][ T1249] RDX: 0000000000000000 RSI: 00007ffca06949b0 RDI: 0000000000000005
[  130.585857][ T1249] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  130.586080][ T1249] R10: 0000000010f18910 R11: 0000000000000246 R12: 0000000000000004
[  130.586301][ T1249] R13: 0000000066beb2b3 R14: 0000000000496600 R15: 0000000000000000
| [  130.588438][ T1249] 1 lock held by ip/1249:
| [ 130.588557][ T1249] #0: ffffffffb7bdcac8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  130.588828][ T1249]
| [  130.588828][ T1249] stack backtrace:
[  130.589241][ T1249] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  130.589571][ T1249] Call Trace:
[  130.589689][ T1249]  <TASK>
[ 130.589768][ T1249] dump_stack_lvl (lib/dump_stack.c:122) 
[ 130.589923][ T1249] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 130.590072][ T1249] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) 
[ 130.590226][ T1249] br_get_link_af_size_filtered (net/bridge/br_private.h:453 net/bridge/br_private.h:940 net/bridge/br_netlink.c:105) 
[ 130.590559][ T1249] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) 
[ 130.590710][ T1249] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 130.590900][ T1249] br_add_if (net/bridge/br_if.c:692) 
[ 130.591029][ T1249] do_setlink (net/core/rtnetlink.c:2907) 
[ 130.591268][ T1249] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 130.591418][ T1249] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 130.591578][ T1249] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 130.591726][ T1249] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 130.591879][ T1249] ? __kernel_text_address (kernel/extable.c:79) 
[ 130.592116][ T1249] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 130.592266][ T1249] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 130.592462][ T1249] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 130.592626][ T1249] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 130.592861][ T1249] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 130.593011][ T1249] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 130.593165][ T1249] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 130.593281][ T1249] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 130.593523][ T1249] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 130.593680][ T1249] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 130.593843][ T1249] ? 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) 
[ 130.593996][ T1249] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 130.594325][ T1249] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 130.594516][ T1249] ? __create_object (mm/kmemleak.c:751) 
[ 130.594672][ T1249] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 130.594830][ T1249] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 130.594945][ T1249] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 130.595184][ T1249] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 130.595337][ T1249] ? 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) 
[ 130.595488][ T1249] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 130.595608][ T1249] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 130.595849][ T1249] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 130.596001][ T1249] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 130.596155][ T1249] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 130.596321][ T1249] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 130.596558][ T1249] ? 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) 
[ 130.596715][ T1249] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 130.596870][ T1249] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 130.597025][ T1249] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 130.597180][ T1249] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 130.597425][ T1249] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 130.597573][ T1249] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 130.597729][ T1249] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 130.597886][ T1249] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 130.598124][ T1249] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 130.598277][ T1249] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 130.598463][ T1249] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 130.598625][ T1249] ___sys_sendmsg (net/socket.c:2653) 
[ 130.598867][ T1249] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 130.599027][ T1249] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 130.599180][ T1249] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 130.599329][ T1249] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 130.599599][ T1249] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 130.599756][ T1249] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 130.599912][ T1249] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 130.600100][ T1249] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 130.600344][ T1249] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 130.600494][ T1249] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 130.600642][ T1249] ? __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) 
[ 130.600811][ T1249] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 130.601050][ T1249] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  130.601235][ T1249] RIP: 0033:0x7f2f39c987b7
[ 130.601391][ T1249] 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)
[  130.602002][ T1249] RSP: 002b:00007ffca0694948 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  130.602228][ T1249] RAX: ffffffffffffffda RBX: 00007ffca0695080 RCX: 00007f2f39c987b7
[  130.602545][ T1249] RDX: 0000000000000000 RSI: 00007ffca06949b0 RDI: 0000000000000005
[  130.602768][ T1249] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  130.602992][ T1249] R10: 0000000010f18910 R11: 0000000000000246 R12: 0000000000000004
[  130.603308][ T1249] R13: 0000000066beb2b3 R14: 0000000000496600 R15: 0000000000000000
| [  130.605250][ T1249] 1 lock held by ip/1249:
| [ 130.605370][ T1249] #0: ffffffffb7bdcac8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [  130.605728][ T1249]
| [  130.605728][ T1249] stack backtrace:
[  130.606138][ T1249] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  130.606637][ T1249] Call Trace:
[  130.606754][ T1249]  <TASK>
[ 130.606835][ T1249] dump_stack_lvl (lib/dump_stack.c:122) 
[ 130.606987][ T1249] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 130.607229][ T1249] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) 
[ 130.607384][ T1249] br_get_link_af_size_filtered (net/bridge/br_private.h:1611 net/bridge/br_private.h:1608 net/bridge/br_netlink.c:107) 
[ 130.607579][ T1249] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) 
[ 130.607730][ T1249] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 130.607918][ T1249] br_add_if (net/bridge/br_if.c:692) 
[ 130.608043][ T1249] do_setlink (net/core/rtnetlink.c:2907) 
[ 130.608192][ T1249] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 130.608343][ T1249] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 130.608581][ T1249] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 130.608731][ T1249] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 130.608894][ T1249] ? __kernel_text_address (kernel/extable.c:79) 
[ 130.609050][ T1249] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 130.609285][ T1249] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 130.609472][ T1249] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 130.609638][ T1249] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 130.609789][ T1249] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 130.610026][ T1249] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 130.610177][ T1249] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 130.610297][ T1249] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 130.610450][ T1249] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 130.610606][ T1249] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 130.610848][ T1249] ? 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) 
[ 130.610998][ T1249] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 130.611152][ T1249] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 130.611339][ T1249] ? __create_object (mm/kmemleak.c:751) 
[ 130.611577][ T1249] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 130.611736][ T1249] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 130.611850][ T1249] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 130.612001][ T1249] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 130.612236][ T1249] ? 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) 
[ 130.612385][ T1249] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 130.612504][ T1249] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 130.612656][ T1249] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 130.612806][ T1249] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 130.613045][ T1249] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 130.613212][ T1249] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 130.613363][ T1249] ? 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) 
[ 130.613515][ T1249] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 130.613755][ T1249] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 130.613905][ T1249] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 130.614058][ T1249] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 130.614211][ T1249] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 130.614444][ T1249] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 130.614600][ T1249] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 130.614756][ T1249] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 130.614907][ T1249] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 130.615057][ T1249] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 130.615330][ T1249] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 130.615490][ T1249] ___sys_sendmsg (net/socket.c:2653) 
[ 130.615642][ T1249] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 130.615793][ T1249] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 130.615950][ T1249] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 130.616097][ T1249] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 130.616285][ T1249] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 130.616437][ T1249] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 130.616681][ T1249] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 130.616868][ T1249] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 130.617023][ T1249] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 130.617173][ T1249] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 130.617412][ T1249] ? __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) 
[ 130.617580][ T1249] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 130.617731][ T1249] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  130.617918][ T1249] RIP: 0033:0x7f2f39c987b7
[ 130.618255][ T1249] 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)
[  130.618779][ T1249] RSP: 002b:00007ffca0694948 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  130.619008][ T1249] RAX: ffffffffffffffda RBX: 00007ffca0695080 RCX: 00007f2f39c987b7
[  130.619232][ T1249] RDX: 0000000000000000 RSI: 00007ffca06949b0 RDI: 0000000000000005
[  130.619546][ T1249] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  130.619768][ T1249] R10: 0000000010f18910 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