======================================
| [   31.623378][  T296] 1 lock held by ip/296:
| [ 31.623581][ T296] #0: ffffffffb7bbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   31.624075][  T296]
| [   31.624075][  T296] stack backtrace:
[   31.624778][  T296] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   31.625350][  T296] Call Trace:
[   31.625553][  T296]  <TASK>
[ 31.625686][ T296] dump_stack_lvl (lib/dump_stack.c:122) 
[ 31.625956][ T296] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 31.626225][ T296] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 31.626681][ T296] 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
[ 31.627059][ T296] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 31.627387][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.627737][ T296] br_add_if (net/bridge/br_if.c:692) bridge
[ 31.628079][ T296] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 31.628359][ T296] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 31.628713][ T296] do_setlink (net/core/rtnetlink.c:2907) 
[ 31.628971][ T296] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 31.629262][ T296] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 31.629525][ T296] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 31.629791][ T296] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 31.630054][ T296] ? __kernel_text_address (kernel/extable.c:79) 
[ 31.630331][ T296] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 31.630597][ T296] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 31.630943][ T296] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 31.631239][ T296] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 31.631524][ T296] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 31.631792][ T296] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 31.632068][ T296] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.632284][ T296] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 31.632570][ T296] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 31.632860][ T296] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 31.633161][ T296] ? 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) 
[ 31.633437][ T296] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 31.633720][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.634068][ T296] ? __create_object (mm/kmemleak.c:751) 
[ 31.634310][ T296] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 31.634512][ T296] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 31.634643][ T296] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 31.634824][ T296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.634999][ T296] ? 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) 
[ 31.635172][ T296] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.635305][ T296] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 31.635492][ T296] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 31.635675][ T296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.635845][ T296] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 31.636031][ T296] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 31.636201][ T296] ? 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) 
[ 31.636377][ T296] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 31.636565][ T296] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 31.636736][ T296] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.636918][ T296] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 31.637097][ T296] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 31.637263][ T296] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 31.637457][ T296] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 31.637641][ T296] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 31.637820][ T296] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 31.637987][ T296] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 31.638198][ T296] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 31.638383][ T296] ___sys_sendmsg (net/socket.c:2653) 
[ 31.638579][ T296] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 31.638761][ T296] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.638936][ T296] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 31.639104][ T296] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 31.639319][ T296] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 31.639508][ T296] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 31.639686][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.639898][ T296] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 31.640094][ T296] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 31.640266][ T296] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 31.640453][ T296] ? __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) 
[ 31.640647][ T296] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.640824][ T296] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.641034][  T296] RIP: 0033:0x7f88063777b7
[ 31.641216][ T296] 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)
[   31.641874][  T296] RSP: 002b:00007fffa7b0aaa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.642167][  T296] RAX: ffffffffffffffda RBX: 00007fffa7b0b1d0 RCX: 00007f88063777b7
[   31.642456][  T296] RDX: 0000000000000000 RSI: 00007fffa7b0ab10 RDI: 0000000000000005
[   31.642881][  T296] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   31.643289][  T296] R10: 0000000022d4b910 R11: 0000000000000246 R12: 0000000000000004
[   31.643703][  T296] R13: 0000000066bea692 R14: 0000000000496600 R15: 0000000000000000
| [   31.646195][  T296] 1 lock held by ip/296:
| [ 31.646328][ T296] #0: ffffffffb7bbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   31.646666][  T296]
| [   31.646666][  T296] stack backtrace:
[   31.647146][  T296] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   31.647532][  T296] Call Trace:
[   31.647662][  T296]  <TASK>
[ 31.647752][ T296] dump_stack_lvl (lib/dump_stack.c:122) 
[ 31.647930][ T296] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 31.648108][ T296] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 31.648363][ T296] 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
[ 31.648629][ T296] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 31.648832][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.649044][ T296] br_add_if (net/bridge/br_if.c:692) bridge
[ 31.649427][ T296] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 31.649619][ T296] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 31.649839][ T296] do_setlink (net/core/rtnetlink.c:2907) 
[ 31.650011][ T296] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 31.650201][ T296] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 31.650512][ T296] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 31.650934][ T296] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 31.651198][ T296] ? __kernel_text_address (kernel/extable.c:79) 
[ 31.651467][ T296] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 31.651903][ T296] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 31.652118][ T296] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 31.652303][ T296] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 31.652589][ T296] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 31.652764][ T296] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 31.652935][ T296] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.653069][ T296] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 31.653252][ T296] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 31.653460][ T296] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 31.653842][ T296] ? 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) 
[ 31.654013][ T296] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 31.654186][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.654397][ T296] ? __create_object (mm/kmemleak.c:751) 
[ 31.654579][ T296] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 31.654864][ T296] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 31.654994][ T296] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 31.655171][ T296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.655351][ T296] ? 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) 
[ 31.655533][ T296] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.655668][ T296] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 31.655938][ T296] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 31.656117][ T296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.656385][ T296] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 31.656586][ T296] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 31.656761][ T296] ? 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) 
[ 31.656932][ T296] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 31.657103][ T296] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 31.657273][ T296] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.657464][ T296] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 31.657642][ T296] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 31.657815][ T296] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 31.658206][ T296] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 31.658389][ T296] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 31.658582][ T296] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 31.658760][ T296] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 31.658970][ T296] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 31.659254][ T296] ___sys_sendmsg (net/socket.c:2653) 
[ 31.659444][ T296] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 31.659619][ T296] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.659794][ T296] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 31.660077][ T296] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 31.660294][ T296] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 31.660477][ T296] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 31.660653][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.660861][ T296] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 31.661038][ T296] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 31.661207][ T296] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 31.661508][ T296] ? __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) 
[ 31.661701][ T296] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.661874][ T296] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.662090][  T296] RIP: 0033:0x7f88063777b7
[ 31.662270][ T296] 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)
[   31.662873][  T296] RSP: 002b:00007fffa7b0aaa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.663135][  T296] RAX: ffffffffffffffda RBX: 00007fffa7b0b1d0 RCX: 00007f88063777b7
[   31.663395][  T296] RDX: 0000000000000000 RSI: 00007fffa7b0ab10 RDI: 0000000000000005
[   31.663662][  T296] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   31.664015][  T296] R10: 0000000022d4b910 R11: 0000000000000246 R12: 0000000000000004
[   31.664264][  T296] R13: 0000000066bea692 R14: 0000000000496600 R15: 0000000000000000
| [   31.666628][  T296] 1 lock held by ip/296:
| [ 31.666847][ T296] #0: ffffffffb7bbc508 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg (net/core/rtnetlink.c:6645) 
| [   31.667433][  T296]
| [   31.667433][  T296] stack backtrace:
[   31.668010][  T296] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   31.668390][  T296] Call Trace:
[   31.668535][  T296]  <TASK>
[ 31.668734][ T296] dump_stack_lvl (lib/dump_stack.c:122) 
[ 31.668914][ T296] lockdep_rcu_suspicious (./include/linux/context_tracking.h:153 kernel/locking/lockdep.c:6725) 
[ 31.669096][ T296] ? __pfx_br_handle_frame (net/bridge/br_input.c:326) bridge
[ 31.669350][ T296] 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
[ 31.669617][ T296] br_info_notify (./include/linux/skbuff.h:1320 ./include/net/netlink.h:1015 net/bridge/br_netlink.c:645) bridge
[ 31.669819][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.670195][ T296] br_add_if (net/bridge/br_if.c:692) bridge
[ 31.670411][ T296] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[ 31.670701][ T296] ? netdev_master_upper_dev_get (net/core/dev.c:7102) 
[ 31.670929][ T296] do_setlink (net/core/rtnetlink.c:2907) 
[ 31.671208][ T296] ? is_bpf_text_address (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 ./kernel/bpf/core.c:769) 
[ 31.671501][ T296] ? __pfx_do_setlink (net/core/rtnetlink.c:2778) 
[ 31.671670][ T296] ? is_bpf_text_address (./kernel/bpf/core.c:772) 
[ 31.671845][ T296] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 31.672022][ T296] ? __kernel_text_address (kernel/extable.c:79) 
[ 31.672201][ T296] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
[ 31.672499][ T296] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 31.672718][ T296] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 31.673005][ T296] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 31.673181][ T296] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 31.673476][ T296] ? __pfx_validate_nla (lib/nlattr.c:396) 
[ 31.673655][ T296] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.673889][ T296] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 31.674176][ T296] ? __nla_validate_parse (lib/nlattr.c:638) 
[ 31.674495][ T296] __rtnl_newlink (net/core/rtnetlink.c:3696) 
[ 31.674747][ T296] ? 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) 
[ 31.674926][ T296] ? __pfx___rtnl_newlink (net/core/rtnetlink.c:3557) 
[ 31.675203][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.675530][ T296] ? __create_object (mm/kmemleak.c:751) 
[ 31.675706][ T296] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 31.675887][ T296] rtnl_newlink (net/core/rtnetlink.c:3744) 
[ 31.676022][ T296] rtnetlink_rcv_msg (net/core/rtnetlink.c:6647) 
[ 31.676200][ T296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.676373][ T296] ? 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) 
[ 31.676646][ T296] ? mark_lock (kernel/locking/lockdep.c:4655 (discriminator 3)) 
[ 31.676792][ T296] ? __lock_acquire (kernel/locking/lockdep.c:5142) 
[ 31.676964][ T296] netlink_rcv_skb (net/netlink/af_netlink.c:2550) 
[ 31.677142][ T296] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6541) 
[ 31.677318][ T296] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2527) 
[ 31.677606][ T296] ? netlink_deliver_tap (./include/linux/rcupdate.h:336 ./include/linux/rcupdate.h:869 net/netlink/af_netlink.c:340) 
[ 31.677793][ T296] ? 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) 
[ 31.677967][ T296] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 31.678240][ T296] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 31.678415][ T296] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.678687][ T296] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 31.678863][ T296] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 31.679031][ T296] ? __might_fault (mm/memory.c:6388 mm/memory.c:6381) 
[ 31.679201][ T296] ? __import_iovec (lib/iov_iter.c:1263 lib/iov_iter.c:1279) 
[ 31.679387][ T296] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2597) 
[ 31.679655][ T296] ? __pfx_____sys_sendmsg (net/socket.c:2543) 
[ 31.679822][ T296] ? __pfx_copy_msghdr_from_user (net/socket.c:2523) 
[ 31.680030][ T296] ? __pfx_validate_chain (kernel/locking/lockdep.c:3824) 
[ 31.680239][ T296] ___sys_sendmsg (net/socket.c:2653) 
[ 31.680506][ T296] ? __pfx____sys_sendmsg (net/socket.c:2640) 
[ 31.680672][ T296] ? find_held_lock (kernel/locking/lockdep.c:5249) 
[ 31.680843][ T296] ? __lock_release (kernel/locking/lockdep.c:5435) 
[ 31.681116][ T296] ? __debug_check_no_obj_freed (lib/debugobjects.c:1001) 
[ 31.681323][ T296] ? __pfx___lock_release (kernel/locking/lockdep.c:5411) 
[ 31.681494][ T296] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 31.681666][ T296] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4299 kernel/locking/lockdep.c:4358) 
[ 31.681987][ T296] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 31.682164][ T296] __sys_sendmsg (./include/linux/file.h:34 net/socket.c:2682) 
[ 31.682337][ T296] ? __pfx___sys_sendmsg (net/socket.c:2668) 
[ 31.682509][ T296] ? __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) 
[ 31.682703][ T296] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.682972][ T296] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.683187][  T296] RIP: 0033:0x7f88063777b7
[ 31.683362][ T296] 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)
[   31.684060][  T296] RSP: 002b:00007fffa7b0aaa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.684316][  T296] RAX: ffffffffffffffda RBX: 00007fffa7b0b1d0 RCX: 00007f88063777b7
[   31.684691][  T296] RDX: 0000000000000000 RSI: 00007fffa7b0ab10 RDI: 0000000000000005
[   31.684952][  T296] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   31.685216][  T296] R10: 0000000022d4b910 R11: 0000000000000246 R12: 0000000000000004


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