======================================
| [   25.482747][  T234] 1 lock held by self-connect_ip/234:
| [ 25.482918][ T234] #0: ffff8880082d1098 (sk_lock-AF_INET6){+.+.}-{0:0}, at: do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
| [   25.483252][  T234]
| [   25.483252][  T234] stack backtrace:
[   25.483773][  T234] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   25.484127][  T234] Call Trace:
[   25.484256][  T234]  <TASK>
[ 25.484346][ T234] dump_stack_lvl (lib/dump_stack.c:123) 
[ 25.484512][ T234] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 25.484678][ T234] tcp_ao_copy_mkts_to_user (net/ipv4/tcp_ao.c:2232 (discriminator 7)) 
[ 25.484838][ T234] ? mark_held_locks (kernel/locking/lockdep.c:4321) 
[ 25.485005][ T234] ? __pfx_tcp_ao_copy_mkts_to_user (net/ipv4/tcp_ao.c:2106) 
[ 25.485203][ T234] ? stack_depot_save_flags (lib/stackdepot.c:664) 
[ 25.485369][ T234] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 25.485543][ T234] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 25.485709][ T234] ? kfree (mm/slub.c:4579 mm/slub.c:4727) 
[ 25.485831][ T234] ? tcp_ao_parse_crypto (./include/net/tcp_ao.h:67 net/ipv4/tcp_ao.c:1436) 
[ 25.486021][ T234] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 25.486206][ T234] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5827) 
[ 25.486372][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 25.486548][ T234] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 25.486709][ T234] ? do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
[ 25.486874][ T234] ? 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) 
[ 25.487042][ T234] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 25.487173][ T234] ? do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
[ 25.487337][ T234] do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
[ 25.487499][ T234] ? __pfx_do_tcp_getsockopt (net/ipv4/tcp.c:4300) 
[ 25.487669][ T234] ? tcp_ao_add_cmd (net/ipv4/tcp_ao.c:1737) 
[ 25.487859][ T234] ? release_sock (net/core/sock.c:3630) 
[ 25.488027][ T234] ? reacquire_held_locks (kernel/locking/lockdep.c:5350) 
[ 25.488191][ T234] ? release_sock (net/core/sock.c:3630) 
[ 25.488355][ T234] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 25.488526][ T234] ? validate_chain (kernel/locking/lockdep.c:3797 kernel/locking/lockdep.c:3817 kernel/locking/lockdep.c:3872) 
[ 25.488685][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 25.488847][ T234] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 25.489011][ T234] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 25.489172][ T234] ? 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) 
[ 25.489333][ T234] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 25.489462][ T234] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 25.489633][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 25.489795][ T234] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 25.489955][ T234] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 25.490116][ T234] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 25.490274][ T234] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 25.490435][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 25.490596][ T234] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 25.490754][ T234] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 25.490916][ T234] tcp_getsockopt (net/ipv4/tcp.c:4673 net/ipv4/tcp.c:4664) 
[ 25.491080][ T234] do_sock_getsockopt (net/socket.c:2396) 
[ 25.491241][ T234] ? __fget_files (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 fs/file.c:1006) 
[ 25.491402][ T234] ? __pfx_do_sock_getsockopt (net/socket.c:2374) 
[ 25.491571][ T234] ? fdget (fs/file.c:1121 fs/file.c:1128) 
[ 25.491695][ T234] __sys_getsockopt (./include/linux/file.h:35 net/socket.c:2428) 
[ 25.491857][ T234] ? __pfx___sys_getsockopt (net/socket.c:2415) 
[ 25.492019][ T234] ? __pfx_task_work_run (kernel/task_work.c:207) 
[ 25.492179][ T234] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:316) 
[ 25.492381][ T234] __x64_sys_getsockopt (net/socket.c:2432) 
[ 25.492539][ T234] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 25.492739][ T234] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 25.492898][ T234] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.493096][  T234] RIP: 0033:0x7f60a19a246e
[ 25.493261][ T234] 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
[   25.493817][  T234] RSP: 002b:00007ffd3969dee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
[   25.494089][  T234] RAX: ffffffffffffffda RBX: 00007ffd3969e3e0 RCX: 00007f60a19a246e
[   25.494326][  T234] RDX: 0000000000000029 RSI: 0000000000000006 RDI: 0000000000000009
[   25.494564][  T234] RBP: 00007ffd3969df00 R08: 00007ffd3969defc R09: 0000000000000064
[   25.494800][  T234] R10: 00007ffd3969df00 R11: 0000000000000246 R12: 0000000000000009
[   25.495034][  T234] R13: 0000000000000064 R14: 0000000000000080 R15: 0000000000000064
| [   25.501620][  T234] 1 lock held by self-connect_ip/234:
| [ 25.501785][ T234] #0: ffff8880082d1098 (sk_lock-AF_INET6){+.+.}-{0:0}, at: inet_stream_connect (net/ipv4/af_inet.c:748) 
| [   25.502081][  T234]
| [   25.502081][  T234] stack backtrace:
[   25.502564][  T234] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   25.502923][  T234] Call Trace:
[   25.503048][  T234]  <TASK>
[ 25.503134][ T234] dump_stack_lvl (lib/dump_stack.c:123) 
[ 25.503301][ T234] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 25.503469][ T234] __tcp_ao_do_lookup.part.0 (net/ipv4/tcp_ao.c:208) 
[ 25.503638][ T234] tcp_ao_do_lookup (net/ipv4/tcp_ao.c:200 net/ipv4/tcp_ao.c:222) 
[ 25.503797][ T234] tcp_connect (net/ipv4/tcp_output.c:4114) 
[ 25.503960][ T234] ? rt6_get_cookie (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/ip6_fib.h:312) 
[ 25.504134][ T234] tcp_v6_connect (net/ipv6/tcp_ipv6.c:333) 
[ 25.504303][ T234] ? __pfx_tcp_v6_connect (net/ipv6/tcp_ipv6.c:137) 
[ 25.504471][ T234] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5827) 
[ 25.504632][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 25.504805][ T234] ? 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) 
[ 25.504967][ T234] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 25.505095][ T234] __inet_stream_connect (net/ipv4/af_inet.c:677) 
[ 25.505256][ T234] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 25.505462][ T234] inet_stream_connect (net/ipv4/af_inet.c:749) 
[ 25.505627][ T234] __sys_connect (net/socket.c:2071 net/socket.c:2088) 
[ 25.505792][ T234] ? __pfx___sys_connect (net/socket.c:2078) 
[ 25.505953][ T234] ? do_fcntl (fs/fcntl.c:473) 
[ 25.506082][ T234] ? __fget_files (fs/file.c:1009) 
[ 25.506258][ T234] __x64_sys_connect (net/socket.c:2095) 
[ 25.506422][ T234] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 25.506588][ T234] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.506790][  T234] RIP: 0033:0x7f60a19a240b
[ 25.506963][ T234] 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
[   25.507532][  T234] RSP: 002b:00007ffd3969e030 EFLAGS: 00000293 ORIG_RAX: 000000000000002a
[   25.507780][  T234] RAX: ffffffffffffffda RBX: 000000000000001c RCX: 00007f60a19a240b
[   25.508039][  T234] RDX: 000000000000001c RSI: 00007ffd3969e0b0 RDI: 0000000000000009
[   25.508284][  T234] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[   25.508591][  T234] R10: 00007f60a185a598 R11: 0000000000000293 R12: 000000000040e08e
[   25.508835][  T234] R13: 0000000000000005 R14: 00007ffd3969e0b0 R15: 00000000318bf6a0
| [   25.515204][  T234] 1 lock held by self-connect_ip/234:
| [ 25.515378][ T234] #0: ffff8880082d1098 (sk_lock-AF_INET6){+.+.}-{0:0}, at: inet_stream_connect (net/ipv4/af_inet.c:748) 
| [   25.515671][  T234]
| [   25.515671][  T234] stack backtrace:
[   25.516148][  T234] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   25.516505][  T234] Call Trace:
[   25.516634][  T234]  <TASK>
[ 25.516725][ T234] dump_stack_lvl (lib/dump_stack.c:123) 
[ 25.516892][ T234] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 25.517057][ T234] tcp_ao_established (net/ipv4/tcp_ao.c:1166 (discriminator 7)) 
[ 25.517222][ T234] tcp_rcv_state_process (net/ipv4/tcp_input.c:6865 (discriminator 3)) 
[ 25.517393][ T234] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 25.517555][ T234] ? __release_sock (./include/net/sock.h:1121 net/core/sock.c:3077) 
[ 25.517719][ T234] ? __pfx_tcp_rcv_state_process (net/ipv4/tcp_input.c:6751) 
[ 25.517943][ T234] ? 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) 
[ 25.518103][ T234] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 25.518232][ T234] tcp_v6_do_rcv (net/ipv6/tcp_ipv6.c:1676) 
[ 25.518395][ T234] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 25.518610][ T234] __release_sock (net/core/sock.c:3079) 
[ 25.518779][ T234] release_sock (net/core/sock.c:3633) 
[ 25.518943][ T234] inet_stream_connect (net/ipv4/af_inet.c:751) 
[ 25.519106][ T234] __sys_connect (net/socket.c:2071 net/socket.c:2088) 
[ 25.519268][ T234] ? __pfx___sys_connect (net/socket.c:2078) 
[ 25.519431][ T234] ? do_fcntl (fs/fcntl.c:473) 
[ 25.519561][ T234] ? __fget_files (fs/file.c:1009) 
[ 25.519734][ T234] __x64_sys_connect (net/socket.c:2095) 
[ 25.519896][ T234] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 25.520062][ T234] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.520259][  T234] RIP: 0033:0x7f60a19a240b
[ 25.520430][ T234] 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
[   25.520993][  T234] RSP: 002b:00007ffd3969e030 EFLAGS: 00000293 ORIG_RAX: 000000000000002a
[   25.521235][  T234] RAX: ffffffffffffffda RBX: 000000000000001c RCX: 00007f60a19a240b
[   25.521481][  T234] RDX: 000000000000001c RSI: 00007ffd3969e0b0 RDI: 0000000000000009
[   25.521727][  T234] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[   25.521966][  T234] R10: 00007f60a185a598 R11: 0000000000000293 R12: 000000000040e08e
[   25.522205][  T234] R13: 0000000000000005 R14: 00007ffd3969e0b0 R15: 00000000318bf6a0
| [   25.590602][  T234] 1 lock held by self-connect_ip/234:
| [ 25.590759][ T234] #0: ffff8880082d3a98 (sk_lock-AF_INET6){+.+.}-{0:0}, at: do_tcp_setsockopt (net/ipv4/tcp.c:3809) 
| [   25.591079][  T234]
| [   25.591079][  T234] stack backtrace:
[   25.591545][  T234] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   25.591892][  T234] Call Trace:
[   25.592014][  T234]  <TASK>
[ 25.592099][ T234] dump_stack_lvl (lib/dump_stack.c:123) 
[ 25.592259][ T234] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 25.592420][ T234] tcp_ao_set_repair (net/ipv4/tcp_ao.c:2399 (discriminator 7)) 
[ 25.592576][ T234] ? 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) 
[ 25.592738][ T234] ? __pfx_tcp_ao_set_repair (net/ipv4/tcp_ao.c:2371) 
[ 25.592906][ T234] do_tcp_setsockopt (net/ipv4/tcp.c:3924) 
[ 25.593069][ T234] ? __pfx_do_tcp_setsockopt (net/ipv4/tcp.c:3705) 
[ 25.593223][ T234] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 25.593389][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 25.593549][ T234] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 25.593704][ T234] ? __fget_files (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 fs/file.c:1006) 
[ 25.593862][ T234] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 25.594017][ T234] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[ 25.594173][ T234] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 25.594338][ T234] do_sock_setsockopt (net/socket.c:2334) 
[ 25.594496][ T234] ? __pfx_do_sock_setsockopt (net/socket.c:2303) 
[ 25.594662][ T234] ? fdget (fs/file.c:1121 fs/file.c:1128) 
[ 25.594788][ T234] __sys_setsockopt (./include/linux/file.h:35 net/socket.c:2359) 
[ 25.594946][ T234] ? __pfx___sys_setsockopt (net/socket.c:2347) 
[ 25.595102][ T234] ? __fget_files (fs/file.c:1009) 
[ 25.595258][ T234] ? __pfx___sys_socket (net/socket.c:1712) 
[ 25.595421][ T234] __x64_sys_setsockopt (net/socket.c:2363) 
[ 25.595581][ T234] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 25.595777][ T234] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 25.595937][ T234] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.596129][  T234] RIP: 0033:0x7f60a19a291e
[ 25.596293][ T234] 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
[   25.596843][  T234] RSP: 002b:00007ffd3969e068 EFLAGS: 00000202 ORIG_RAX: 0000000000000036
[   25.597080][  T234] RAX: ffffffffffffffda RBX: 0000000000000034 RCX: 00007f60a19a291e
[   25.597310][  T234] RDX: 000000000000002a RSI: 0000000000000006 RDI: 0000000000000009
[   25.597544][  T234] RBP: 0000000000000009 R08: 0000000000000010 R09: 0000000000000064
[   25.597778][  T234] R10: 00007ffd3969e0a0 R11: 0000000000000202 R12: 00007ffd3969e2b0


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