======================================
| [   25.664049][  T234] 1 lock held by self-connect_ip/234:
| [ 25.664204][ T234] #0: ffff888007fe2a58 (sk_lock-AF_INET){+.+.}-{0:0}, at: do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
| [   25.664495][  T234]
| [   25.664495][  T234] stack backtrace:
[   25.664939][  T234] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   25.665269][  T234] Call Trace:
[   25.665389][  T234]  <TASK>
[ 25.665471][ T234] dump_stack_lvl (lib/dump_stack.c:123) 
[ 25.665626][ T234] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 25.665780][ T234] tcp_ao_copy_mkts_to_user (net/ipv4/tcp_ao.c:2232 (discriminator 7)) 
[ 25.665930][ T234] ? mark_held_locks (kernel/locking/lockdep.c:4321) 
[ 25.666087][ T234] ? __pfx_tcp_ao_copy_mkts_to_user (net/ipv4/tcp_ao.c:2106) 
[ 25.666270][ T234] ? stack_depot_save_flags (lib/stackdepot.c:664) 
[ 25.666428][ T234] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 25.666574][ T234] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 25.666725][ T234] ? kasan_save_free_info (mm/kasan/generic.c:582) 
[ 25.666872][ T234] ? __kasan_slab_free (mm/kasan/common.c:271) 
[ 25.667024][ T234] ? kfree (mm/slub.c:4579 mm/slub.c:4727) 
[ 25.667139][ T234] ? tcp_ao_parse_crypto (./include/net/tcp_ao.h:67 net/ipv4/tcp_ao.c:1436) 
[ 25.667314][ T234] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 25.667470][ T234] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5827) 
[ 25.667617][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 25.667774][ T234] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 25.667922][ T234] ? do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
[ 25.668072][ 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) 
[ 25.668221][ T234] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 25.668345][ T234] ? do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
[ 25.668494][ T234] do_tcp_getsockopt (net/ipv4/tcp.c:4631) 
[ 25.668647][ T234] ? __pfx_do_tcp_getsockopt (net/ipv4/tcp.c:4300) 
[ 25.668794][ T234] ? tcp_ao_add_cmd (net/ipv4/tcp_ao.c:1737) 
[ 25.668962][ T234] ? release_sock (net/core/sock.c:3630) 
[ 25.669106][ T234] ? reacquire_held_locks (kernel/locking/lockdep.c:5350) 
[ 25.669251][ T234] ? release_sock (net/core/sock.c:3630) 
[ 25.669399][ T234] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 25.669543][ T234] ? validate_chain (kernel/locking/lockdep.c:3797 kernel/locking/lockdep.c:3817 kernel/locking/lockdep.c:3872) 
[ 25.669692][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 25.669841][ T234] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 25.669987][ T234] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 25.670132][ 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) 
[ 25.670284][ T234] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 25.670401][ T234] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 25.670559][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 25.670707][ T234] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 25.670855][ T234] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 25.671003][ T234] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 25.671146][ T234] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 25.671294][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 25.671446][ T234] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 25.671594][ T234] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) 
[ 25.671740][ T234] tcp_getsockopt (net/ipv4/tcp.c:4673 net/ipv4/tcp.c:4664) 
[ 25.671895][ T234] do_sock_getsockopt (net/socket.c:2396) 
[ 25.672040][ T234] ? __fget_files (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 fs/file.c:1006) 
[ 25.672190][ T234] ? __pfx_do_sock_getsockopt (net/socket.c:2374) 
[ 25.672344][ T234] ? fdget (fs/file.c:1121 fs/file.c:1128) 
[ 25.672460][ T234] __sys_getsockopt (./include/linux/file.h:35 net/socket.c:2428) 
[ 25.672606][ T234] ? __sys_setsockopt (net/socket.c:2360) 
[ 25.672757][ T234] ? __pfx___sys_getsockopt (net/socket.c:2415) 
[ 25.672901][ T234] ? __rseq_handle_notify_resume (kernel/rseq.c:316) 
[ 25.673085][ T234] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:316) 
[ 25.673272][ T234] __x64_sys_getsockopt (net/socket.c:2432) 
[ 25.673419][ T234] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 25.673601][ T234] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 25.673752][ T234] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.673934][  T234] RIP: 0033:0x7fb7baf3c46e
[ 25.674095][ 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
[   25.674603][  T234] RSP: 002b:00007fff66b57758 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
[   25.674825][  T234] RAX: ffffffffffffffda RBX: 00007fff66b57c40 RCX: 00007fb7baf3c46e
[   25.675047][  T234] RDX: 0000000000000029 RSI: 0000000000000006 RDI: 0000000000000009
[   25.675275][  T234] RBP: 00007fff66b57770 R08: 00007fff66b5776c R09: 0000000000000064
[   25.675495][  T234] R10: 00007fff66b57770 R11: 0000000000000246 R12: 0000000000000009
[   25.675715][  T234] R13: 0000000000000064 R14: 0000000000000020 R15: 0000000000000064
| [   25.688161][  T234] 1 lock held by self-connect_ip/234:
| [ 25.688371][ T234] #0: ffff888007fe2a58 (sk_lock-AF_INET){+.+.}-{0:0}, at: inet_stream_connect (net/ipv4/af_inet.c:748) 
| [   25.688655][  T234]
| [   25.688655][  T234] stack backtrace:
[   25.689101][  T234] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   25.689425][  T234] Call Trace:
[   25.689540][  T234]  <TASK>
[ 25.689625][ T234] dump_stack_lvl (lib/dump_stack.c:123) 
[ 25.689786][ T234] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 25.689941][ T234] __tcp_ao_do_lookup.part.0 (net/ipv4/tcp_ao.c:208) 
[ 25.690094][ T234] tcp_v4_ao_lookup (net/ipv4/tcp_ao.c:200 net/ipv4/tcp_ao.c:222 net/ipv4/tcp_ao.c:720) 
[ 25.690250][ T234] tcp_connect (net/ipv4/tcp_output.c:4114) 
[ 25.690417][ T234] tcp_v4_connect (net/ipv4/tcp_ipv4.c:342) 
[ 25.690578][ T234] ? __pfx_tcp_v4_connect (net/ipv4/tcp_ipv4.c:220) 
[ 25.690731][ T234] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 25.690851][ T234] __inet_stream_connect (net/ipv4/af_inet.c:677) 
[ 25.691008][ T234] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 25.691194][ T234] inet_stream_connect (net/ipv4/af_inet.c:749) 
[ 25.691345][ T234] __sys_connect (net/socket.c:2071 net/socket.c:2088) 
[ 25.691495][ T234] ? __pfx___sys_connect (net/socket.c:2078) 
[ 25.691646][ T234] ? do_fcntl (fs/fcntl.c:473) 
[ 25.691759][ T234] ? __pfx_do_fcntl (fs/fcntl.c:443) 
[ 25.691910][ T234] ? __fget_files (fs/file.c:1009) 
[ 25.692070][ T234] __x64_sys_connect (net/socket.c:2095) 
[ 25.692224][ T234] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 25.692383][ T234] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.692568][  T234] RIP: 0033:0x7fb7baf3c40b
[ 25.692725][ 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
[   25.693240][  T234] RSP: 002b:00007fff66b578a0 EFLAGS: 00000293 ORIG_RAX: 000000000000002a
[   25.693474][  T234] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fb7baf3c40b
[   25.693697][  T234] RDX: 0000000000000010 RSI: 00007fff66b57920 RDI: 0000000000000009
[   25.693919][  T234] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[   25.694145][  T234] R10: 00007fb7badf4598 R11: 0000000000000293 R12: 000000000040e08e
[   25.694379][  T234] R13: 0000000000000005 R14: 00007fff66b57920 R15: 000000002bab56a0
| [   25.698353][  T234] 1 lock held by self-connect_ip/234:
| [ 25.698502][ T234] #0: ffff888007fe2a58 (sk_lock-AF_INET){+.+.}-{0:0}, at: inet_stream_connect (net/ipv4/af_inet.c:748) 
| [   25.698776][  T234]
| [   25.698776][  T234] stack backtrace:
[   25.699212][  T234] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   25.699535][  T234] Call Trace:
[   25.699650][  T234]  <TASK>
[ 25.699729][ T234] dump_stack_lvl (lib/dump_stack.c:123) 
[ 25.699888][ T234] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 25.700040][ T234] tcp_ao_established (net/ipv4/tcp_ao.c:1166 (discriminator 7)) 
[ 25.700191][ T234] tcp_rcv_state_process (net/ipv4/tcp_input.c:6865 (discriminator 3)) 
[ 25.700340][ T234] ? __release_sock (./include/net/sock.h:1121 net/core/sock.c:3077) 
[ 25.700494][ T234] ? __pfx_tcp_rcv_state_process (net/ipv4/tcp_input.c:6751) 
[ 25.700677][ T234] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 25.700799][ T234] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1945) 
[ 25.700952][ T234] __release_sock (./include/net/sock.h:1121 net/core/sock.c:3077) 
[ 25.701109][ T234] release_sock (net/core/sock.c:3633) 
[ 25.701259][ T234] inet_stream_connect (net/ipv4/af_inet.c:751) 
[ 25.701410][ T234] __sys_connect (net/socket.c:2071 net/socket.c:2088) 
[ 25.701560][ T234] ? __pfx___sys_connect (net/socket.c:2078) 
[ 25.701707][ T234] ? do_fcntl (fs/fcntl.c:473) 
[ 25.701820][ T234] ? __pfx_do_fcntl (fs/fcntl.c:443) 
[ 25.701971][ T234] ? __fget_files (fs/file.c:1009) 
[ 25.702132][ T234] __x64_sys_connect (net/socket.c:2095) 
[ 25.702282][ T234] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 25.702434][ T234] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.702617][  T234] RIP: 0033:0x7fb7baf3c40b
[ 25.702773][ 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
[   25.703288][  T234] RSP: 002b:00007fff66b578a0 EFLAGS: 00000293 ORIG_RAX: 000000000000002a
[   25.703515][  T234] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fb7baf3c40b
[   25.703742][  T234] RDX: 0000000000000010 RSI: 00007fff66b57920 RDI: 0000000000000009
[   25.703967][  T234] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[   25.704187][  T234] R10: 00007fb7badf4598 R11: 0000000000000293 R12: 000000000040e08e
[   25.704408][  T234] R13: 0000000000000005 R14: 00007fff66b57920 R15: 000000002bab56a0
| [   25.764205][  T234] 1 lock held by self-connect_ip/234:
| [ 25.764359][ T234] #0: ffff888007fe5218 (sk_lock-AF_INET){+.+.}-{0:0}, at: do_tcp_setsockopt (net/ipv4/tcp.c:3809) 
| [   25.764621][  T234]
| [   25.764621][  T234] stack backtrace:
[   25.765051][  T234] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   25.765383][  T234] Call Trace:
[   25.765494][  T234]  <TASK>
[ 25.765571][ T234] dump_stack_lvl (lib/dump_stack.c:123) 
[ 25.765722][ T234] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) 
[ 25.765868][ T234] tcp_ao_set_repair (net/ipv4/tcp_ao.c:2399 (discriminator 7)) 
[ 25.766012][ 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) 
[ 25.766158][ T234] ? __pfx_tcp_ao_set_repair (net/ipv4/tcp_ao.c:2371) 
[ 25.766317][ T234] do_tcp_setsockopt (net/ipv4/tcp.c:3924) 
[ 25.766463][ T234] ? __pfx_do_tcp_setsockopt (net/ipv4/tcp.c:3705) 
[ 25.766608][ T234] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 25.766759][ T234] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 25.766904][ T234] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 25.767045][ T234] ? __fget_files (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 fs/file.c:1006) 
[ 25.767194][ T234] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 25.767335][ T234] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[ 25.767481][ T234] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 25.767631][ T234] do_sock_setsockopt (net/socket.c:2334) 
[ 25.767774][ T234] ? __pfx_do_sock_setsockopt (net/socket.c:2303) 
[ 25.767927][ T234] ? fdget (fs/file.c:1121 fs/file.c:1128) 
[ 25.768040][ T234] __sys_setsockopt (./include/linux/file.h:35 net/socket.c:2359) 
[ 25.768184][ T234] ? __pfx___sys_setsockopt (net/socket.c:2347) 
[ 25.768326][ T234] ? __fget_files (fs/file.c:1009) 
[ 25.768477][ T234] ? __pfx___sys_socket (net/socket.c:1712) 
[ 25.768629][ T234] __x64_sys_setsockopt (net/socket.c:2363) 
[ 25.768773][ T234] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) 
[ 25.768950][ T234] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 25.769095][ T234] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.769269][  T234] RIP: 0033:0x7fb7baf3c91e
[ 25.769427][ 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
[   25.769925][  T234] RSP: 002b:00007fff66b578d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000036
[   25.770140][  T234] RAX: ffffffffffffffda RBX: 0000000000000034 RCX: 00007fb7baf3c91e
[   25.770357][  T234] RDX: 000000000000002a RSI: 0000000000000006 RDI: 0000000000000009
[   25.770568][  T234] RBP: 0000000000000009 R08: 0000000000000010 R09: 0000000000000064
[   25.770785][  T234] R10: 00007fff66b57910 R11: 0000000000000202 R12: 00007fff66b57b10


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