======================================
| [   28.469443][  T235] 1 lock held by self-connect_ip/235:
| [ 28.469617][ T235] #0: ffff888015899098 (sk_lock-AF_INET6){+.+.}-{0:0}, at: do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
| [   28.469972][  T235]
| [   28.469972][  T235] stack backtrace:
[   28.470511][  T235] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   28.470844][  T235] Call Trace:
[   28.470964][  T235]  <TASK>
[ 28.471050][ T235] dump_stack_lvl (lib/dump_stack.c:123) 
[ 28.471209][ T235] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 28.471401][ T235] tcp_ao_copy_mkts_to_user (net/ipv4/tcp_ao.c:2232 (discriminator 7)) 
[ 28.471567][ T235] ? mark_held_locks (kernel/locking/lockdep.c:4321) 
[ 28.471732][ T235] ? __pfx_tcp_ao_copy_mkts_to_user (net/ipv4/tcp_ao.c:2106) 
[ 28.471920][ T235] ? stack_depot_save_flags (lib/stackdepot.c:664) 
[ 28.472078][ T235] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 28.472264][ T235] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 28.472412][ T235] ? kfree (mm/slub.c:4579 mm/slub.c:4727) 
[ 28.472527][ T235] ? tcp_ao_parse_crypto (./include/net/tcp_ao.h:67 net/ipv4/tcp_ao.c:1436) 
[ 28.472730][ T235] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 28.472893][ T235] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5827) 
[ 28.473063][ T235] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 28.473215][ T235] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 28.473379][ T235] ? do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
[ 28.473533][ T235] ? 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:228) 
[ 28.473715][ T235] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 28.473838][ T235] ? do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
[ 28.473986][ T235] do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
[ 28.474158][ T235] ? __pfx_do_tcp_getsockopt (net/ipv4/tcp.c:4300) 
[ 28.474304][ T235] ? tcp_ao_add_cmd (net/ipv4/tcp_ao.c:1737) 
[ 28.474466][ T235] ? release_sock (net/core/sock.c:3630) 
[ 28.474616][ T235] ? reacquire_held_locks (kernel/locking/lockdep.c:5350) 
[ 28.474762][ T235] ? release_sock (net/core/sock.c:3630) 
[ 28.474950][ T235] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 28.475096][ T235] ? validate_chain (kernel/locking/lockdep.c:3797 kernel/locking/lockdep.c:3817 kernel/locking/lockdep.c:3872) 
[ 28.475242][ T235] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 28.475403][ T235] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 28.475585][ T235] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 28.475731][ T235] ? 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:228) 
[ 28.475881][ T235] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 28.476033][ T235] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 28.476197][ T235] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 28.476366][ T235] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 28.476521][ T235] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 28.476680][ T235] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 28.476885][ T235] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 28.477037][ T235] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 28.477219][ T235] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 28.477379][ T235] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 28.477530][ T235] tcp_getsockopt (net/ipv4/tcp.c:4673 net/ipv4/tcp.c:4664) 
[ 28.477732][ T235] do_sock_getsockopt (net/socket.c:2396) 
[ 28.477892][ T235] ? __fget_files (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 fs/file.c:1006) 
[ 28.478050][ T235] ? __pfx_do_sock_getsockopt (net/socket.c:2374) 
[ 28.478215][ T235] ? fdget (fs/file.c:1121 fs/file.c:1128) 
[ 28.478330][ T235] __sys_getsockopt (./include/linux/file.h:35 net/socket.c:2428) 
[ 28.478494][ T235] ? __sys_setsockopt (net/socket.c:2360) 
[ 28.478642][ T235] ? __pfx___sys_getsockopt (net/socket.c:2415) 
[ 28.478811][ T235] ? __rseq_handle_notify_resume (kernel/rseq.c:316) 
[ 28.479059][ T235] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:316) 
[ 28.479278][ T235] __x64_sys_getsockopt (net/socket.c:2432) 
[ 28.479434][ T235] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 28.479651][ T235] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 28.479867][ T235] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   28.480119][  T235] RIP: 0033:0x7f308e80146e
[ 28.480299][ T235] Code: 1f 44 00 00 48 8b 15 91 99 0a 00 f7 d8 64 89 02 b8 ff ff ff ff eb b8 0f 1f 44 00 00 f3 0f 1e fa 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0a c3 66 0f 1f 84 00 00 00 00 00 48 8b 15 59
All code
========
   0:	1f                   	(bad)
   1:	44 00 00             	add    %r8b,(%rax)
   4:	48 8b 15 91 99 0a 00 	mov    0xa9991(%rip),%rdx        # 0xa999c
   b:	f7 d8                	neg    %eax
   d:	64 89 02             	mov    %eax,%fs:(%rdx)
  10:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
  15:	eb b8                	jmp    0xffffffffffffffcf
  17:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  1c:	f3 0f 1e fa          	endbr64
  20:	49 89 ca             	mov    %rcx,%r10
  23:	b8 37 00 00 00       	mov    $0x37,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 0a                	ja     0x3c
  32:	c3                   	ret
  33:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  3a:	00 00 
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	15                   	.byte 0x15
  3f:	59                   	pop    %rcx

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 0a                	ja     0x12
   8:	c3                   	ret
   9:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  10:	00 00 
  12:	48                   	rex.W
  13:	8b                   	.byte 0x8b
  14:	15                   	.byte 0x15
  15:	59                   	pop    %rcx
[   28.480823][  T235] RSP: 002b:00007fffd8ddb6c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
[   28.481045][  T235] RAX: ffffffffffffffda RBX: 00007fffd8ddbbc0 RCX: 00007f308e80146e
[   28.481315][  T235] RDX: 0000000000000029 RSI: 0000000000000006 RDI: 0000000000000009
[   28.481559][  T235] RBP: 00007fffd8ddb6e0 R08: 00007fffd8ddb6dc R09: 0000000000000064
[   28.481849][  T235] R10: 00007fffd8ddb6e0 R11: 0000000000000246 R12: 0000000000000009
[   28.482067][  T235] R13: 0000000000000064 R14: 0000000000000080 R15: 0000000000000064
| [   28.489763][  T235] 1 lock held by self-connect_ip/235:
| [ 28.489923][ T235] #0: ffff888015899098 (sk_lock-AF_INET6){+.+.}-{0:0}, at: inet_stream_connect (net/ipv4/af_inet.c:748) 
| [   28.490240][  T235]
| [   28.490240][  T235] stack backtrace:
[   28.490715][  T235] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   28.491068][  T235] Call Trace:
[   28.491195][  T235]  <TASK>
[ 28.491281][ T235] dump_stack_lvl (lib/dump_stack.c:123) 
[ 28.491447][ T235] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 28.491639][ T235] __tcp_ao_do_lookup.part.0 (net/ipv4/tcp_ao.c:208) 
[ 28.491813][ T235] tcp_ao_do_lookup (net/ipv4/tcp_ao.c:200 net/ipv4/tcp_ao.c:222) 
[ 28.491971][ T235] tcp_connect (net/ipv4/tcp_output.c:4114) 
[ 28.492157][ T235] ? rt6_get_cookie (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/ip6_fib.h:312) 
[ 28.492374][ T235] tcp_v6_connect (net/ipv6/tcp_ipv6.c:333) 
[ 28.492538][ T235] ? __pfx_tcp_v6_connect (net/ipv6/tcp_ipv6.c:137) 
[ 28.492741][ T235] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5827) 
[ 28.492916][ T235] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 28.493111][ T235] ? 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:228) 
[ 28.493275][ T235] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 28.493401][ T235] __inet_stream_connect (net/ipv4/af_inet.c:677) 
[ 28.493580][ T235] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 28.493791][ T235] inet_stream_connect (net/ipv4/af_inet.c:749) 
[ 28.493989][ T235] __sys_connect (net/socket.c:2071 net/socket.c:2088) 
[ 28.494140][ T235] ? __pfx___sys_connect (net/socket.c:2078) 
[ 28.494349][ T235] ? do_fcntl (fs/fcntl.c:473) 
[ 28.494495][ T235] ? __fget_files (fs/file.c:1009) 
[ 28.494670][ T235] __x64_sys_connect (net/socket.c:2095) 
[ 28.494828][ T235] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 28.494980][ T235] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   28.495192][  T235] RIP: 0033:0x7f308e80140b
[ 28.495357][ T235] Code: 83 ec 18 89 54 24 0c 48 89 34 24 89 7c 24 08 e8 eb c7 f4 ff 8b 54 24 0c 48 8b 34 24 41 89 c0 8b 7c 24 08 b8 2a 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 08 e8 41 c8 f4 ff 8b 44
All code
========
   0:	83 ec 18             	sub    $0x18,%esp
   3:	89 54 24 0c          	mov    %edx,0xc(%rsp)
   7:	48 89 34 24          	mov    %rsi,(%rsp)
   b:	89 7c 24 08          	mov    %edi,0x8(%rsp)
   f:	e8 eb c7 f4 ff       	call   0xfffffffffff4c7ff
  14:	8b 54 24 0c          	mov    0xc(%rsp),%edx
  18:	48 8b 34 24          	mov    (%rsp),%rsi
  1c:	41 89 c0             	mov    %eax,%r8d
  1f:	8b 7c 24 08          	mov    0x8(%rsp),%edi
  23:	b8 2a 00 00 00       	mov    $0x2a,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 35                	ja     0x67
  32:	44 89 c7             	mov    %r8d,%edi
  35:	89 44 24 08          	mov    %eax,0x8(%rsp)
  39:	e8 41 c8 f4 ff       	call   0xfffffffffff4c87f
  3e:	8b                   	.byte 0x8b
  3f:	44                   	rex.R

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 35                	ja     0x3d
   8:	44 89 c7             	mov    %r8d,%edi
   b:	89 44 24 08          	mov    %eax,0x8(%rsp)
   f:	e8 41 c8 f4 ff       	call   0xfffffffffff4c855
  14:	8b                   	.byte 0x8b
  15:	44                   	rex.R
[   28.495952][  T235] RSP: 002b:00007fffd8ddb810 EFLAGS: 00000293 ORIG_RAX: 000000000000002a
[   28.496226][  T235] RAX: ffffffffffffffda RBX: 000000000000001c RCX: 00007f308e80140b
[   28.496470][  T235] RDX: 000000000000001c RSI: 00007fffd8ddb890 RDI: 0000000000000009
[   28.496700][  T235] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[   28.496946][  T235] R10: 00007f308e6b9598 R11: 0000000000000293 R12: 000000000040e08e
[   28.497171][  T235] R13: 0000000000000005 R14: 00007fffd8ddb890 R15: 0000000031c07670
| [   28.503216][  T235] 1 lock held by self-connect_ip/235:
| [ 28.503364][ T235] #0: ffff888015899098 (sk_lock-AF_INET6){+.+.}-{0:0}, at: inet_stream_connect (net/ipv4/af_inet.c:748) 
| [   28.503662][  T235]
| [   28.503662][  T235] stack backtrace:
[   28.504109][  T235] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   28.504434][  T235] Call Trace:
[   28.504551][  T235]  <TASK>
[ 28.504642][ T235] dump_stack_lvl (lib/dump_stack.c:123) 
[ 28.504796][ T235] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 28.504950][ T235] tcp_ao_established (net/ipv4/tcp_ao.c:1166 (discriminator 7)) 
[ 28.505106][ T235] tcp_rcv_state_process (net/ipv4/tcp_input.c:6865 (discriminator 3)) 
[ 28.505261][ T235] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 28.505412][ T235] ? __release_sock (./include/net/sock.h:1121 net/core/sock.c:3077) 
[ 28.505566][ T235] ? __pfx_tcp_rcv_state_process (net/ipv4/tcp_input.c:6751) 
[ 28.505765][ T235] ? 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:228) 
[ 28.505912][ T235] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 28.506034][ T235] tcp_v6_do_rcv (net/ipv6/tcp_ipv6.c:1676) 
[ 28.506187][ T235] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 28.506370][ T235] __release_sock (net/core/sock.c:3079) 
[ 28.506530][ T235] release_sock (net/core/sock.c:3633) 
[ 28.506683][ T235] inet_stream_connect (net/ipv4/af_inet.c:751) 
[ 28.506835][ T235] __sys_connect (net/socket.c:2071 net/socket.c:2088) 
[ 28.506986][ T235] ? __pfx___sys_connect (net/socket.c:2078) 
[ 28.507162][ T235] ? do_fcntl (fs/fcntl.c:473) 
[ 28.507282][ T235] ? __fget_files (fs/file.c:1009) 
[ 28.507442][ T235] __x64_sys_connect (net/socket.c:2095) 
[ 28.507592][ T235] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 28.507750][ T235] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   28.507938][  T235] RIP: 0033:0x7f308e80140b
[ 28.508093][ T235] Code: 83 ec 18 89 54 24 0c 48 89 34 24 89 7c 24 08 e8 eb c7 f4 ff 8b 54 24 0c 48 8b 34 24 41 89 c0 8b 7c 24 08 b8 2a 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 08 e8 41 c8 f4 ff 8b 44
All code
========
   0:	83 ec 18             	sub    $0x18,%esp
   3:	89 54 24 0c          	mov    %edx,0xc(%rsp)
   7:	48 89 34 24          	mov    %rsi,(%rsp)
   b:	89 7c 24 08          	mov    %edi,0x8(%rsp)
   f:	e8 eb c7 f4 ff       	call   0xfffffffffff4c7ff
  14:	8b 54 24 0c          	mov    0xc(%rsp),%edx
  18:	48 8b 34 24          	mov    (%rsp),%rsi
  1c:	41 89 c0             	mov    %eax,%r8d
  1f:	8b 7c 24 08          	mov    0x8(%rsp),%edi
  23:	b8 2a 00 00 00       	mov    $0x2a,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 35                	ja     0x67
  32:	44 89 c7             	mov    %r8d,%edi
  35:	89 44 24 08          	mov    %eax,0x8(%rsp)
  39:	e8 41 c8 f4 ff       	call   0xfffffffffff4c87f
  3e:	8b                   	.byte 0x8b
  3f:	44                   	rex.R

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 35                	ja     0x3d
   8:	44 89 c7             	mov    %r8d,%edi
   b:	89 44 24 08          	mov    %eax,0x8(%rsp)
   f:	e8 41 c8 f4 ff       	call   0xfffffffffff4c855
  14:	8b                   	.byte 0x8b
  15:	44                   	rex.R
[   28.508606][  T235] RSP: 002b:00007fffd8ddb810 EFLAGS: 00000293 ORIG_RAX: 000000000000002a
[   28.508830][  T235] RAX: ffffffffffffffda RBX: 000000000000001c RCX: 00007f308e80140b
[   28.509054][  T235] RDX: 000000000000001c RSI: 00007fffd8ddb890 RDI: 0000000000000009
[   28.509279][  T235] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[   28.509506][  T235] R10: 00007f308e6b9598 R11: 0000000000000293 R12: 000000000040e08e
[   28.509738][  T235] R13: 0000000000000005 R14: 00007fffd8ddb890 R15: 0000000031c07670
| [   28.587455][  T235] 1 lock held by self-connect_ip/235:
| [ 28.587725][ T235] #0: ffff88801589ba98 (sk_lock-AF_INET6){+.+.}-{0:0}, at: do_tcp_setsockopt (net/ipv4/tcp.c:3809) 
| [   28.588219][  T235]
| [   28.588219][  T235] stack backtrace:
[   28.588779][  T235] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   28.589119][  T235] Call Trace:
[   28.589240][  T235]  <TASK>
[ 28.589325][ T235] dump_stack_lvl (lib/dump_stack.c:123) 
[ 28.589483][ T235] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 28.589670][ T235] tcp_ao_set_repair (net/ipv4/tcp_ao.c:2399 (discriminator 7)) 
[ 28.589820][ T235] ? 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:228) 
[ 28.589985][ T235] ? __pfx_tcp_ao_set_repair (net/ipv4/tcp_ao.c:2371) 
[ 28.590189][ T235] do_tcp_setsockopt (net/ipv4/tcp.c:3924) 
[ 28.590344][ T235] ? __pfx_do_tcp_setsockopt (net/ipv4/tcp.c:3705) 
[ 28.590502][ T235] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 28.590686][ T235] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 28.590840][ T235] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 28.590989][ T235] ? __fget_files (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 fs/file.c:1006) 
[ 28.591149][ T235] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 28.591309][ T235] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[ 28.591459][ T235] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 28.591627][ T235] do_sock_setsockopt (net/socket.c:2334) 
[ 28.591786][ T235] ? __pfx_do_sock_setsockopt (net/socket.c:2303) 
[ 28.591958][ T235] ? fdget (fs/file.c:1121 fs/file.c:1128) 
[ 28.592077][ T235] __sys_setsockopt (./include/linux/file.h:35 net/socket.c:2359) 
[ 28.592229][ T235] ? __pfx___sys_setsockopt (net/socket.c:2347) 
[ 28.592397][ T235] ? __fget_files (fs/file.c:1009) 
[ 28.592553][ T235] ? __pfx___sys_socket (net/socket.c:1712) 
[ 28.592743][ T235] __x64_sys_setsockopt (net/socket.c:2363) 
[ 28.592895][ T235] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 28.593079][ T235] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 28.593231][ T235] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   28.593416][  T235] RIP: 0033:0x7f308e80191e
[ 28.593585][ T235] Code: 0f 1f 40 00 48 8b 15 e1 94 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b1 0f 1f 00 f3 0f 1e fa 49 89 ca b8 36 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0a c3 66 0f 1f 84 00 00 00 00 00 48 8b 15 a9
All code
========
   0:	0f 1f 40 00          	nopl   0x0(%rax)
   4:	48 8b 15 e1 94 0a 00 	mov    0xa94e1(%rip),%rdx        # 0xa94ec
   b:	f7 d8                	neg    %eax
   d:	64 89 02             	mov    %eax,%fs:(%rdx)
  10:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
  17:	eb b1                	jmp    0xffffffffffffffca
  19:	0f 1f 00             	nopl   (%rax)
  1c:	f3 0f 1e fa          	endbr64
  20:	49 89 ca             	mov    %rcx,%r10
  23:	b8 36 00 00 00       	mov    $0x36,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 0a                	ja     0x3c
  32:	c3                   	ret
  33:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  3a:	00 00 
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	15                   	.byte 0x15
  3f:	a9                   	.byte 0xa9

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 0a                	ja     0x12
   8:	c3                   	ret
   9:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  10:	00 00 
  12:	48                   	rex.W
  13:	8b                   	.byte 0x8b
  14:	15                   	.byte 0x15
  15:	a9                   	.byte 0xa9
[   28.594116][  T235] RSP: 002b:00007fffd8ddb848 EFLAGS: 00000206 ORIG_RAX: 0000000000000036
[   28.594359][  T235] RAX: ffffffffffffffda RBX: 0000000000000034 RCX: 00007f308e80191e
[   28.594599][  T235] RDX: 000000000000002a RSI: 0000000000000006 RDI: 0000000000000009
[   28.594851][  T235] RBP: 0000000000000009 R08: 0000000000000010 R09: 0000000000000064
[   28.595077][  T235] R10: 00007fffd8ddb880 R11: 0000000000000206 R12: 00007fffd8ddba90


Finger prints:
lockdep_rcu_suspicious:tcp_ao_do_lookup:tcp_connect:tcp_v6_connect:__inet_stream_connect
lockdep_rcu_suspicious:tcp_ao_copy_mkts_to_user:do_tcp_getsockopt:tcp_getsockopt:do_sock_getsockopt
lockdep_rcu_suspicious:tcp_ao_established:tcp_rcv_state_process:tcp_v6_do_rcv:__release_sock
lockdep_rcu_suspicious:tcp_ao_set_repair:do_tcp_setsockopt:do_sock_setsockopt:__sys_setsockopt