======================================
| [   28.573508][  T234] 1 lock held by self-connect_ip/234:
| [ 28.573668][ T234] #0: ffff888006182a58 (sk_lock-AF_INET){+.+.}-{0:0}, at: do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
| [   28.573976][  T234]
| [   28.573976][  T234] stack backtrace:
[   28.574451][  T234] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   28.574796][  T234] Call Trace:
[   28.574919][  T234]  <TASK>
[ 28.575003][ T234] dump_stack_lvl (lib/dump_stack.c:123) 
[ 28.575165][ T234] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 28.575325][ T234] tcp_ao_copy_mkts_to_user (net/ipv4/tcp_ao.c:2232 (discriminator 7)) 
[ 28.575484][ T234] ? mark_held_locks (kernel/locking/lockdep.c:4321) 
[ 28.575649][ T234] ? __pfx_tcp_ao_copy_mkts_to_user (net/ipv4/tcp_ao.c:2106) 
[ 28.575843][ T234] ? stack_depot_save_flags (lib/stackdepot.c:664) 
[ 28.576001][ T234] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 28.576159][ T234] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 28.576315][ T234] ? kasan_save_free_info (mm/kasan/generic.c:582) 
[ 28.576469][ T234] ? __kasan_slab_free (mm/kasan/common.c:271) 
[ 28.576621][ T234] ? kfree (mm/slub.c:4579 mm/slub.c:4727) 
[ 28.576739][ T234] ? tcp_ao_parse_crypto (./include/net/tcp_ao.h:67 net/ipv4/tcp_ao.c:1436) 
[ 28.576924][ T234] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 28.577091][ T234] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5827) 
[ 28.577272][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 28.577440][ T234] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 28.577627][ T234] ? do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
[ 28.577784][ 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) 
[ 28.577966][ T234] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 28.578092][ T234] ? do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
[ 28.578246][ T234] do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
[ 28.578421][ T234] ? __pfx_do_tcp_getsockopt (net/ipv4/tcp.c:4300) 
[ 28.578580][ T234] ? tcp_ao_add_cmd (net/ipv4/tcp_ao.c:1737) 
[ 28.578760][ T234] ? release_sock (net/core/sock.c:3630) 
[ 28.578911][ T234] ? reacquire_held_locks (kernel/locking/lockdep.c:5350) 
[ 28.579067][ T234] ? release_sock (net/core/sock.c:3630) 
[ 28.579220][ T234] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 28.579371][ T234] ? validate_chain (kernel/locking/lockdep.c:3797 kernel/locking/lockdep.c:3817 kernel/locking/lockdep.c:3872) 
[ 28.579545][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 28.579715][ T234] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 28.579869][ T234] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 28.580053][ 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) 
[ 28.580206][ T234] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 28.580344][ T234] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 28.580532][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 28.580708][ T234] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 28.580862][ T234] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 28.581014][ T234] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 28.581170][ T234] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 28.581324][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 28.581477][ T234] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 28.581628][ T234] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 28.581783][ T234] tcp_getsockopt (net/ipv4/tcp.c:4673 net/ipv4/tcp.c:4664) 
[ 28.581939][ T234] do_sock_getsockopt (net/socket.c:2396) 
[ 28.582096][ T234] ? __fget_files (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 fs/file.c:1006) 
[ 28.582249][ T234] ? __pfx_do_sock_getsockopt (net/socket.c:2374) 
[ 28.582410][ T234] ? fdget (fs/file.c:1121 fs/file.c:1128) 
[ 28.582530][ T234] __sys_getsockopt (./include/linux/file.h:35 net/socket.c:2428) 
[ 28.582696][ T234] ? __pfx___sys_getsockopt (net/socket.c:2415) 
[ 28.582849][ T234] ? __pfx_task_work_run (kernel/task_work.c:207) 
[ 28.583000][ T234] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:316) 
[ 28.583197][ T234] __x64_sys_getsockopt (net/socket.c:2432) 
[ 28.583346][ T234] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 28.583533][ T234] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 28.583687][ T234] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   28.583882][  T234] RIP: 0033:0x7fdaf603d46e
[ 28.584043][ 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
[   28.584571][  T234] RSP: 002b:00007ffd4e93aff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
[   28.584800][  T234] RAX: ffffffffffffffda RBX: 00007ffd4e93b4e0 RCX: 00007fdaf603d46e
[   28.585030][  T234] RDX: 0000000000000029 RSI: 0000000000000006 RDI: 0000000000000009
[   28.585259][  T234] RBP: 00007ffd4e93b010 R08: 00007ffd4e93b00c R09: 0000000000000064
[   28.585485][  T234] R10: 00007ffd4e93b010 R11: 0000000000000246 R12: 0000000000000009
[   28.585738][  T234] R13: 0000000000000064 R14: 0000000000000020 R15: 0000000000000064
| [   28.594237][  T234] 1 lock held by self-connect_ip/234:
| [ 28.594420][ T234] #0: ffff888006182a58 (sk_lock-AF_INET){+.+.}-{0:0}, at: inet_stream_connect (net/ipv4/af_inet.c:748) 
| [   28.594731][  T234]
| [   28.594731][  T234] stack backtrace:
[   28.595217][  T234] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   28.595584][  T234] Call Trace:
[   28.595712][  T234]  <TASK>
[ 28.595804][ T234] dump_stack_lvl (lib/dump_stack.c:123) 
[ 28.595979][ T234] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 28.596150][ T234] __tcp_ao_do_lookup.part.0 (net/ipv4/tcp_ao.c:208) 
[ 28.596318][ T234] tcp_v4_ao_lookup (net/ipv4/tcp_ao.c:200 net/ipv4/tcp_ao.c:222 net/ipv4/tcp_ao.c:720) 
[ 28.596482][ T234] tcp_connect (net/ipv4/tcp_output.c:4114) 
[ 28.596665][ T234] tcp_v4_connect (net/ipv4/tcp_ipv4.c:342) 
[ 28.596838][ T234] ? __pfx_tcp_v4_connect (net/ipv4/tcp_ipv4.c:220) 
[ 28.597023][ T234] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 28.597153][ T234] __inet_stream_connect (net/ipv4/af_inet.c:677) 
[ 28.597318][ T234] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 28.597521][ T234] inet_stream_connect (net/ipv4/af_inet.c:749) 
[ 28.597694][ T234] __sys_connect (net/socket.c:2071 net/socket.c:2088) 
[ 28.597858][ T234] ? __pfx___sys_connect (net/socket.c:2078) 
[ 28.598025][ T234] ? do_fcntl (fs/fcntl.c:473) 
[ 28.598154][ T234] ? __pfx_do_fcntl (fs/fcntl.c:443) 
[ 28.598327][ T234] ? __fget_files (fs/file.c:1009) 
[ 28.598500][ T234] __x64_sys_connect (net/socket.c:2095) 
[ 28.598672][ T234] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 28.598841][ T234] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   28.599046][  T234] RIP: 0033:0x7fdaf603d40b
[ 28.599214][ 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
[   28.599787][  T234] RSP: 002b:00007ffd4e93b140 EFLAGS: 00000293 ORIG_RAX: 000000000000002a
[   28.600042][  T234] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fdaf603d40b
[   28.600291][  T234] RDX: 0000000000000010 RSI: 00007ffd4e93b1c0 RDI: 0000000000000009
[   28.600535][  T234] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[   28.600793][  T234] R10: 00007fdaf5ef5598 R11: 0000000000000293 R12: 000000000040e08e
[   28.601045][  T234] R13: 0000000000000005 R14: 00007ffd4e93b1c0 R15: 0000000025f25670
| [   28.605971][  T234] 1 lock held by self-connect_ip/234:
| [ 28.606137][ T234] #0: ffff888006182a58 (sk_lock-AF_INET){+.+.}-{0:0}, at: inet_stream_connect (net/ipv4/af_inet.c:748) 
| [   28.607064][  T234]
| [   28.607064][  T234] stack backtrace:
[   28.607648][  T234] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   28.608017][  T234] Call Trace:
[   28.608145][  T234]  <TASK>
[ 28.608231][ T234] dump_stack_lvl (lib/dump_stack.c:123) 
[ 28.608404][ T234] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 28.608569][ T234] tcp_ao_established (net/ipv4/tcp_ao.c:1166 (discriminator 7)) 
[ 28.608734][ T234] tcp_rcv_state_process (net/ipv4/tcp_input.c:6865 (discriminator 3)) 
[ 28.608898][ T234] ? __release_sock (./include/net/sock.h:1121 net/core/sock.c:3077) 
[ 28.609073][ T234] ? __pfx_tcp_rcv_state_process (net/ipv4/tcp_input.c:6751) 
[ 28.609284][ T234] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 28.609414][ T234] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1945) 
[ 28.609586][ T234] __release_sock (./include/net/sock.h:1121 net/core/sock.c:3077) 
[ 28.609753][ T234] release_sock (net/core/sock.c:3633) 
[ 28.609917][ T234] inet_stream_connect (net/ipv4/af_inet.c:751) 
[ 28.610083][ T234] __sys_connect (net/socket.c:2071 net/socket.c:2088) 
[ 28.610247][ T234] ? __pfx___sys_connect (net/socket.c:2078) 
[ 28.610414][ T234] ? do_fcntl (fs/fcntl.c:473) 
[ 28.610539][ T234] ? __pfx_do_fcntl (fs/fcntl.c:443) 
[ 28.610707][ T234] ? __fget_files (fs/file.c:1009) 
[ 28.610879][ T234] __x64_sys_connect (net/socket.c:2095) 
[ 28.611043][ T234] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 28.611211][ T234] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   28.611413][  T234] RIP: 0033:0x7fdaf603d40b
[ 28.611588][ 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
[   28.612160][  T234] RSP: 002b:00007ffd4e93b140 EFLAGS: 00000293 ORIG_RAX: 000000000000002a
[   28.612410][  T234] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fdaf603d40b
[   28.612663][  T234] RDX: 0000000000000010 RSI: 00007ffd4e93b1c0 RDI: 0000000000000009
[   28.612907][  T234] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[   28.613157][  T234] R10: 00007fdaf5ef5598 R11: 0000000000000293 R12: 000000000040e08e
[   28.613401][  T234] R13: 0000000000000005 R14: 00007ffd4e93b1c0 R15: 0000000025f25670
| [   28.684006][  T234] 1 lock held by self-connect_ip/234:
| [ 28.684152][ T234] #0: ffff888006185218 (sk_lock-AF_INET){+.+.}-{0:0}, at: do_tcp_setsockopt (net/ipv4/tcp.c:3809) 
| [   28.684477][  T234]
| [   28.684477][  T234] stack backtrace:
[   28.684908][  T234] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   28.685230][  T234] Call Trace:
[   28.685343][  T234]  <TASK>
[ 28.685420][ T234] dump_stack_lvl (lib/dump_stack.c:123) 
[ 28.685572][ T234] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 28.685723][ T234] tcp_ao_set_repair (net/ipv4/tcp_ao.c:2399 (discriminator 7)) 
[ 28.685868][ 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) 
[ 28.686016][ T234] ? __pfx_tcp_ao_set_repair (net/ipv4/tcp_ao.c:2371) 
[ 28.686168][ T234] do_tcp_setsockopt (net/ipv4/tcp.c:3924) 
[ 28.686322][ T234] ? __pfx_do_tcp_setsockopt (net/ipv4/tcp.c:3705) 
[ 28.686468][ T234] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 28.686620][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 28.686769][ T234] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 28.686910][ T234] ? __fget_files (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 fs/file.c:1006) 
[ 28.687056][ T234] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 28.687197][ T234] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[ 28.687339][ T234] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 28.687490][ T234] do_sock_setsockopt (net/socket.c:2334) 
[ 28.687636][ T234] ? __pfx_do_sock_setsockopt (net/socket.c:2303) 
[ 28.687789][ T234] ? fdget (fs/file.c:1121 fs/file.c:1128) 
[ 28.687904][ T234] __sys_setsockopt (./include/linux/file.h:35 net/socket.c:2359) 
[ 28.688052][ T234] ? __pfx___sys_setsockopt (net/socket.c:2347) 
[ 28.688198][ T234] ? __fget_files (fs/file.c:1009) 
[ 28.688378][ T234] ? __pfx___sys_socket (net/socket.c:1712) 
[ 28.688531][ T234] __x64_sys_setsockopt (net/socket.c:2363) 
[ 28.688675][ T234] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 28.688856][ T234] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 28.689009][ T234] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   28.689190][  T234] RIP: 0033:0x7fdaf603d91e
[ 28.689351][ 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
[   28.689849][  T234] RSP: 002b:00007ffd4e93b178 EFLAGS: 00000202 ORIG_RAX: 0000000000000036
[   28.690074][  T234] RAX: ffffffffffffffda RBX: 0000000000000034 RCX: 00007fdaf603d91e
[   28.690300][  T234] RDX: 000000000000002a RSI: 0000000000000006 RDI: 0000000000000009
[   28.690518][  T234] RBP: 0000000000000009 R08: 0000000000000010 R09: 0000000000000064
[   28.690736][  T234] R10: 00007ffd4e93b1b0 R11: 0000000000000202 R12: 00007ffd4e93b3b0


Finger prints:
lockdep_rcu_suspicious:tcp_ao_established:tcp_rcv_state_process:tcp_v4_do_rcv:__release_sock
lockdep_rcu_suspicious:tcp_v4_ao_lookup:tcp_connect:tcp_v4_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_set_repair:do_tcp_setsockopt:do_sock_setsockopt:__sys_setsockopt