====================================== | [ 28.574046][ T232] 1 lock held by self-connect_ip/232: | [ 28.574196][ T232] #0: ffff888005949098 (sk_lock-AF_INET6){+.+.}-{0:0}, at: do_tcp_getsockopt (net/ipv4/tcp.c:4631) | [ 28.574701][ T232] | [ 28.574701][ T232] stack backtrace: [ 28.575146][ T232] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 28.575471][ T232] Call Trace: [ 28.575594][ T232] [ 28.575675][ T232] dump_stack_lvl (lib/dump_stack.c:123) [ 28.575832][ T232] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) [ 28.575992][ T232] tcp_ao_copy_mkts_to_user (net/ipv4/tcp_ao.c:2232 (discriminator 7)) [ 28.576139][ T232] ? mark_held_locks (kernel/locking/lockdep.c:4321) [ 28.576298][ T232] ? __pfx_tcp_ao_copy_mkts_to_user (net/ipv4/tcp_ao.c:2106) [ 28.576482][ T232] ? stack_depot_save_flags (lib/stackdepot.c:664) [ 28.576635][ T232] ? kasan_save_stack (mm/kasan/common.c:48) [ 28.576783][ T232] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 28.576931][ T232] ? kfree (mm/slub.c:4579 mm/slub.c:4727) [ 28.577046][ T232] ? tcp_ao_parse_crypto (./include/net/tcp_ao.h:67 net/ipv4/tcp_ao.c:1436) [ 28.577238][ T232] ? __lock_acquire (kernel/locking/lockdep.c:5202) [ 28.577397][ T232] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5827) [ 28.577548][ T232] ? find_held_lock (kernel/locking/lockdep.c:5315) [ 28.577702][ T232] ? __lock_release (kernel/locking/lockdep.c:5501) [ 28.577848][ T232] ? do_tcp_getsockopt (net/ipv4/tcp.c:4631) [ 28.577998][ T232] ? 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) [ 28.578144][ T232] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) [ 28.578265][ T232] ? do_tcp_getsockopt (net/ipv4/tcp.c:4631) [ 28.578413][ T232] do_tcp_getsockopt (net/ipv4/tcp.c:4631) [ 28.578565][ T232] ? __pfx_do_tcp_getsockopt (net/ipv4/tcp.c:4300) [ 28.578723][ T232] ? tcp_ao_add_cmd (net/ipv4/tcp_ao.c:1737) [ 28.578884][ T232] ? release_sock (net/core/sock.c:3630) [ 28.579034][ T232] ? reacquire_held_locks (kernel/locking/lockdep.c:5350) [ 28.579188][ T232] ? release_sock (net/core/sock.c:3630) [ 28.579338][ T232] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.579484][ T232] ? validate_chain (kernel/locking/lockdep.c:3797 kernel/locking/lockdep.c:3817 kernel/locking/lockdep.c:3872) [ 28.579632][ T232] ? find_held_lock (kernel/locking/lockdep.c:5315) [ 28.579788][ T232] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) [ 28.579934][ T232] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) [ 28.580079][ T232] ? 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) [ 28.580222][ T232] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) [ 28.580340][ T232] ? __lock_acquire (kernel/locking/lockdep.c:5202) [ 28.580502][ T232] ? find_held_lock (kernel/locking/lockdep.c:5315) [ 28.580650][ T232] ? __lock_release (kernel/locking/lockdep.c:5501) [ 28.580792][ T232] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) [ 28.580940][ T232] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) [ 28.581082][ T232] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 28.581225][ T232] ? find_held_lock (kernel/locking/lockdep.c:5315) [ 28.581372][ T232] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) [ 28.581518][ T232] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) [ 28.581667][ T232] tcp_getsockopt (net/ipv4/tcp.c:4673 net/ipv4/tcp.c:4664) [ 28.581817][ T232] do_sock_getsockopt (net/socket.c:2396) [ 28.581962][ T232] ? __fget_files (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 fs/file.c:1006) [ 28.582108][ T232] ? __pfx_do_sock_getsockopt (net/socket.c:2374) [ 28.582264][ T232] ? fdget (fs/file.c:1121 fs/file.c:1128) [ 28.582378][ T232] __sys_getsockopt (./include/linux/file.h:35 net/socket.c:2428) [ 28.582536][ T232] ? __pfx___sys_getsockopt (net/socket.c:2415) [ 28.582683][ T232] ? __pfx_task_work_run (kernel/task_work.c:207) [ 28.582833][ T232] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:316) [ 28.583022][ T232] __x64_sys_getsockopt (net/socket.c:2432) [ 28.583167][ T232] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 28.583347][ T232] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 28.583500][ T232] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 28.583682][ T232] RIP: 0033:0x7eff9763f46e [ 28.583839][ T232] 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 [ 28.584349][ T232] RSP: 002b:00007ffed5b0ea58 EFLAGS: 00000246 ORIG_RAX: 0000000000000037 [ 28.584569][ T232] RAX: ffffffffffffffda RBX: 00007ffed5b0ef50 RCX: 00007eff9763f46e [ 28.584790][ T232] RDX: 0000000000000029 RSI: 0000000000000006 RDI: 0000000000000009 [ 28.585005][ T232] RBP: 00007ffed5b0ea70 R08: 00007ffed5b0ea6c R09: 0000000000000064 [ 28.585224][ T232] R10: 00007ffed5b0ea70 R11: 0000000000000246 R12: 0000000000000009 [ 28.585444][ T232] R13: 0000000000000064 R14: 0000000000000080 R15: 0000000000000064 | [ 28.600822][ T232] 1 lock held by self-connect_ip/232: | [ 28.600972][ T232] #0: ffff888005949098 (sk_lock-AF_INET6){+.+.}-{0:0}, at: inet_stream_connect (net/ipv4/af_inet.c:748) | [ 28.601248][ T232] | [ 28.601248][ T232] stack backtrace: [ 28.601716][ T232] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 28.602042][ T232] Call Trace: [ 28.602159][ T232] [ 28.602239][ T232] dump_stack_lvl (lib/dump_stack.c:123) [ 28.602397][ T232] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) [ 28.602564][ T232] __tcp_ao_do_lookup.part.0 (net/ipv4/tcp_ao.c:208) [ 28.602718][ T232] tcp_ao_do_lookup (net/ipv4/tcp_ao.c:200 net/ipv4/tcp_ao.c:222) [ 28.602876][ T232] tcp_connect (net/ipv4/tcp_output.c:4114) [ 28.603032][ T232] ? rt6_get_cookie (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/ip6_fib.h:312) [ 28.603191][ T232] tcp_v6_connect (net/ipv6/tcp_ipv6.c:333) [ 28.603344][ T232] ? __pfx_tcp_v6_connect (net/ipv6/tcp_ipv6.c:137) [ 28.603494][ T232] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5827) [ 28.603642][ T232] ? find_held_lock (kernel/locking/lockdep.c:5315) [ 28.603797][ T232] ? 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) [ 28.603944][ T232] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) [ 28.604063][ T232] __inet_stream_connect (net/ipv4/af_inet.c:677) [ 28.604216][ T232] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 28.604398][ T232] inet_stream_connect (net/ipv4/af_inet.c:749) [ 28.604547][ T232] __sys_connect (net/socket.c:2071 net/socket.c:2088) [ 28.604697][ T232] ? __pfx___sys_connect (net/socket.c:2078) [ 28.604843][ T232] ? do_fcntl (fs/fcntl.c:473) [ 28.604962][ T232] ? __fget_files (fs/file.c:1009) [ 28.605120][ T232] __x64_sys_connect (net/socket.c:2095) [ 28.605266][ T232] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 28.605418][ T232] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 28.605606][ T232] RIP: 0033:0x7eff9763f40b [ 28.605765][ T232] 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 [ 28.606274][ T232] RSP: 002b:00007ffed5b0eba0 EFLAGS: 00000293 ORIG_RAX: 000000000000002a [ 28.606497][ T232] RAX: ffffffffffffffda RBX: 000000000000001c RCX: 00007eff9763f40b [ 28.606722][ T232] RDX: 000000000000001c RSI: 00007ffed5b0ec20 RDI: 0000000000000009 [ 28.606941][ T232] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000 [ 28.607173][ T232] R10: 00007eff974f7598 R11: 0000000000000293 R12: 000000000040e08e [ 28.607395][ T232] R13: 0000000000000005 R14: 00007ffed5b0ec20 R15: 000000000c23e670 | [ 28.613776][ T232] 1 lock held by self-connect_ip/232: | [ 28.614010][ T232] #0: ffff888005949098 (sk_lock-AF_INET6){+.+.}-{0:0}, at: inet_stream_connect (net/ipv4/af_inet.c:748) | [ 28.614485][ T232] | [ 28.614485][ T232] stack backtrace: [ 28.615207][ T232] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 28.615737][ T232] Call Trace: [ 28.615933][ T232] [ 28.616072][ T232] dump_stack_lvl (lib/dump_stack.c:123) [ 28.616336][ T232] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) [ 28.616596][ T232] tcp_ao_established (net/ipv4/tcp_ao.c:1166 (discriminator 7)) [ 28.616846][ T232] tcp_rcv_state_process (net/ipv4/tcp_input.c:6865 (discriminator 3)) [ 28.617086][ T232] ? __lock_release (kernel/locking/lockdep.c:5501) [ 28.617339][ T232] ? __release_sock (./include/net/sock.h:1121 net/core/sock.c:3077) [ 28.617583][ T232] ? __pfx_tcp_rcv_state_process (net/ipv4/tcp_input.c:6751) [ 28.617884][ T232] ? 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) [ 28.618133][ T232] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) [ 28.618336][ T232] tcp_v6_do_rcv (net/ipv6/tcp_ipv6.c:1676) [ 28.618583][ T232] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 28.618894][ T232] __release_sock (net/core/sock.c:3079) [ 28.619144][ T232] release_sock (net/core/sock.c:3633) [ 28.619392][ T232] inet_stream_connect (net/ipv4/af_inet.c:751) [ 28.619634][ T232] __sys_connect (net/socket.c:2071 net/socket.c:2088) [ 28.619882][ T232] ? __pfx___sys_connect (net/socket.c:2078) [ 28.620125][ T232] ? do_fcntl (fs/fcntl.c:473) [ 28.620326][ T232] ? __fget_files (fs/file.c:1009) [ 28.620621][ T232] __x64_sys_connect (net/socket.c:2095) [ 28.620888][ T232] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 28.621147][ T232] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 28.621461][ T232] RIP: 0033:0x7eff9763f40b [ 28.621720][ T232] 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 [ 28.622571][ T232] RSP: 002b:00007ffed5b0eba0 EFLAGS: 00000293 ORIG_RAX: 000000000000002a [ 28.622956][ T232] RAX: ffffffffffffffda RBX: 000000000000001c RCX: 00007eff9763f40b [ 28.623330][ T232] RDX: 000000000000001c RSI: 00007ffed5b0ec20 RDI: 0000000000000009 [ 28.623701][ T232] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000 [ 28.624068][ T232] R10: 00007eff974f7598 R11: 0000000000000293 R12: 000000000040e08e [ 28.624438][ T232] R13: 0000000000000005 R14: 00007ffed5b0ec20 R15: 000000000c23e670 | [ 28.693227][ T232] 1 lock held by self-connect_ip/232: | [ 28.693464][ T232] #0: ffff88800594ba98 (sk_lock-AF_INET6){+.+.}-{0:0}, at: do_tcp_setsockopt (net/ipv4/tcp.c:3809) | [ 28.693772][ T232] | [ 28.693772][ T232] stack backtrace: [ 28.694209][ T232] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 28.694526][ T232] Call Trace: [ 28.694640][ T232] [ 28.694718][ T232] dump_stack_lvl (lib/dump_stack.c:123) [ 28.694872][ T232] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) [ 28.695024][ T232] tcp_ao_set_repair (net/ipv4/tcp_ao.c:2399 (discriminator 7)) [ 28.695183][ T232] ? 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) [ 28.695363][ T232] ? __pfx_tcp_ao_set_repair (net/ipv4/tcp_ao.c:2371) [ 28.695518][ T232] do_tcp_setsockopt (net/ipv4/tcp.c:3924) [ 28.695673][ T232] ? __pfx_do_tcp_setsockopt (net/ipv4/tcp.c:3705) [ 28.695822][ T232] ? __lock_acquire (kernel/locking/lockdep.c:5202) [ 28.695977][ T232] ? find_held_lock (kernel/locking/lockdep.c:5315) [ 28.696127][ T232] ? __lock_release (kernel/locking/lockdep.c:5501) [ 28.696268][ T232] ? __fget_files (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 fs/file.c:1006) [ 28.696415][ T232] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) [ 28.696556][ T232] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) [ 28.696703][ T232] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 28.696854][ T232] do_sock_setsockopt (net/socket.c:2334) [ 28.697004][ T232] ? __pfx_do_sock_setsockopt (net/socket.c:2303) [ 28.697163][ T232] ? fdget (fs/file.c:1121 fs/file.c:1128) [ 28.697305][ T232] __sys_setsockopt (./include/linux/file.h:35 net/socket.c:2359) [ 28.697459][ T232] ? __pfx___sys_setsockopt (net/socket.c:2347) [ 28.697605][ T232] ? __fget_files (fs/file.c:1009) [ 28.697751][ T232] ? __pfx___sys_socket (net/socket.c:1712) [ 28.697909][ T232] __x64_sys_setsockopt (net/socket.c:2363) [ 28.698049][ T232] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 28.698236][ T232] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 28.698386][ T232] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 28.698567][ T232] RIP: 0033:0x7eff9763f91e [ 28.698724][ T232] 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 [ 28.699241][ T232] RSP: 002b:00007ffed5b0ebd8 EFLAGS: 00000202 ORIG_RAX: 0000000000000036 [ 28.699471][ T232] RAX: ffffffffffffffda RBX: 0000000000000034 RCX: 00007eff9763f91e [ 28.699697][ T232] RDX: 000000000000002a RSI: 0000000000000006 RDI: 0000000000000009 [ 28.699914][ T232] RBP: 0000000000000009 R08: 0000000000000010 R09: 0000000000000064 [ 28.700130][ T232] R10: 00007ffed5b0ec10 R11: 0000000000000202 R12: 00007ffed5b0ee20 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