====================================== | [ 1936.111364][ C1] #10: ffffffff8c5447e0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb_internal (./include/linux/rcupdate.h:298 (discriminator 16) ./include/linux/rcupdate.h:750 (discriminator 16) net/core/dev.c:5729 (discriminator 16)) | [ 1936.111913][ C1] #11: ffffffff8c5447e0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/ipv4/ip_input.c:232) | [ 1936.112453][ C1] | [ 1936.112453][ C1] stack backtrace: [ 1936.113163][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1936.113806][ C1] Call Trace: [ 1936.113981][ C1] [ 1936.114132][ C1] dump_stack_lvl (lib/dump_stack.c:107) [ 1936.114378][ C1] validate_chain (kernel/locking/lockdep.c:3859) [ 1936.114632][ C1] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 1936.114909][ C1] ? 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) [ 1936.115152][ C1] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 1936.115384][ C1] __lock_acquire (kernel/locking/lockdep.c:5137) [ 1936.115636][ C1] ? lock_downgrade (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:67 ./arch/x86/include/asm/irqflags.h:103 kernel/locking/lockdep.c:5653) [ 1936.115886][ C1] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 1936.116117][ C1] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 1936.116385][ C1] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 1936.116638][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 1936.116934][ C1] ? __pfx_sk_filter_trim_cap (net/core/filter.c:130) [ 1936.117225][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 1936.117467][ C1] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 1936.117711][ C1] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) [ 1936.117980][ C1] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 1936.118229][ C1] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 1936.118474][ C1] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2162) [ 1936.118733][ C1] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) [ 1936.119001][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 1936.119300][ C1] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) [ 1936.119587][ C1] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 1936.119873][ C1] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) [ 1936.120130][ C1] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) [ 1936.120414][ C1] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1131 ./include/linux/skbuff.h:1183 net/ipv4/ip_input.c:390) [ 1936.120748][ C1] ip_rcv (./include/net/dst.h:461 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569) [ 1936.120958][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 1936.121196][ C1] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 1936.121466][ C1] ? netif_receive_skb_internal (./include/linux/rcupdate.h:298 (discriminator 16) ./include/linux/rcupdate.h:750 (discriminator 16) net/core/dev.c:5729 (discriminator 16)) [ 1936.121771][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 1936.122011][ C1] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) [ 1936.122327][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5535) [ 1936.122664][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 1936.122926][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 1936.123175][ C1] ? netif_receive_skb_internal (./include/linux/rcupdate.h:298 (discriminator 16) ./include/linux/rcupdate.h:750 (discriminator 16) net/core/dev.c:5729 (discriminator 16)) [ 1936.123482][ C1] netif_receive_skb_internal (net/core/dev.c:5742) [ 1936.123776][ C1] ? __pfx_netif_receive_skb_internal (net/core/dev.c:5721) [ 1936.124107][ C1] ? __copy_skb_header (./include/net/dst.h:290 net/core/skbuff.c:1420) [ 1936.124375][ C1] ? __skb_clone (./arch/x86/include/asm/atomic.h:53 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:992 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:436 (discriminator 4) net/core/skbuff.c:1491 (discriminator 4)) [ 1936.124620][ C1] netif_receive_skb (net/core/dev.c:5801) [ 1936.124873][ C1] tcf_mirred_to_dev (net/sched/act_mirred.c:249 net/sched/act_mirred.c:324) act_mirred [ 1936.125198][ C1] ? __pfx_tcf_skbedit_act (net/sched/act_skbedit.c:43) act_skbedit [ 1936.125540][ C1] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred [ 1936.125852][ C1] tcf_action_exec.part.0 (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100) [ 1936.126138][ C1] fl_classify (net/sched/cls_flower.c:345) cls_flower [ 1936.126442][ C1] ? __pfx_fl_classify (net/sched/cls_flower.c:316) cls_flower [ 1936.126764][ C1] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 1936.127024][ C1] ? check_irq_usage (kernel/locking/lockdep.c:2823) [ 1936.127287][ C1] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 1936.127563][ C1] ? __bfs (kernel/locking/lockdep.c:1787) [ 1936.127783][ C1] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 1936.128057][ C1] ? 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) [ 1936.128299][ C1] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 1936.128577][ C1] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 1936.128844][ C1] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 1936.129136][ C1] __tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734) [ 1936.129383][ C1] tcf_classify (net/sched/cls_api.c:1830) [ 1936.129621][ C1] ? __pfx_tcf_classify (net/sched/cls_api.c:1779) [ 1936.129884][ C1] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 1936.130154][ C1] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) [ 1936.130423][ C1] tc_run (net/core/dev.c:3945) [ 1936.130639][ C1] ? __pfx_tc_run (net/core/dev.c:3929) [ 1936.130882][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 1936.131133][ C1] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) [ 1936.131404][ C1] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) [ 1936.131671][ C1] __dev_queue_xmit (net/core/dev.c:4069 net/core/dev.c:4301) [ 1936.131933][ C1] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 1936.132159][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 1936.132407][ C1] ? __pfx___dev_queue_xmit (net/core/dev.c:4268) [ 1936.132702][ C1] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:772 ./include/net/neighbour.h:496) [ 1936.132962][ C1] ? vrf_ip_local_out (./include/net/dst.h:451 ./include/net/dst.h:449 drivers/net/vrf.c:522) vrf [ 1936.133267][ C1] ip_finish_output2 (./include/net/neighbour.h:540 net/ipv4/ip_output.c:235) [ 1936.133537][ C1] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) [ 1936.133825][ C1] ? __ip_finish_output (net/ipv4/ip_output.c:256 net/ipv4/ip_output.c:308 net/ipv4/ip_output.c:295) [ 1936.134097][ C1] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) [ 1936.134319][ C1] ? 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) [ 1936.134560][ C1] ? __pfx_ip_output (net/ipv4/ip_output.c:427) [ 1936.134813][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 1936.135109][ C1] ? ip_local_out (./include/linux/skbuff.h:1131 ./include/net/dst.h:451 net/ipv4/ip_output.c:129) [ 1936.135361][ C1] __ip_queue_xmit (net/ipv4/ip_output.c:535 (discriminator 4)) [ 1936.135620][ C1] ? __skb_clone (./arch/x86/include/asm/atomic.h:53 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:992 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:436 (discriminator 4) net/core/skbuff.c:1491 (discriminator 4)) [ 1936.135869][ C1] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) [ 1936.136147][ C1] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1283) [ 1936.136438][ C1] ? tcp_small_queue_check.isra.0 (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 net/ipv4/tcp_output.c:2623) [ 1936.136750][ C1] tcp_write_xmit (net/ipv4/tcp_output.c:2792) [ 1936.137007][ C1] ? ipv4_mtu (./include/net/net_namespace.h:385 ./include/linux/netdevice.h:2651 ./include/net/ip.h:465 net/ipv4/route.c:1326) [ 1936.137233][ C1] ? __pfx_tcp_write_xmit (net/ipv4/tcp_output.c:2702) [ 1936.137508][ C1] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1853) [ 1936.137789][ C1] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) [ 1936.138080][ C1] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6870) [ 1936.138360][ C1] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 1936.138603][ C1] ? 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) [ 1936.138839][ C1] ? __lock_acquired (kernel/locking/lockdep.c:339 kernel/locking/lockdep.c:5991) [ 1936.139097][ C1] ? __pfx_tcp_rcv_state_process (net/ipv4/tcp_input.c:6620) [ 1936.139409][ C1] ? __pfx___lock_acquired (kernel/locking/lockdep.c:5959) [ 1936.139685][ C1] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122) [ 1936.139984][ C1] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) [ 1936.140230][ C1] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) [ 1936.140475][ C1] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2162) [ 1936.140736][ C1] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) [ 1936.141005][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 1936.141303][ C1] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) [ 1936.141592][ C1] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 1936.141880][ C1] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) [ 1936.142138][ C1] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) [ 1936.142422][ C1] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1131 ./include/linux/skbuff.h:1183 net/ipv4/ip_input.c:390) [ 1936.142763][ C1] ip_rcv (./include/net/dst.h:461 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569) [ 1936.142973][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 1936.143214][ C1] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 1936.143489][ C1] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5983) [ 1936.143750][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 1936.143987][ C1] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) [ 1936.144294][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5535) [ 1936.144628][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 1936.144874][ C1] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5983) [ 1936.145134][ C1] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5985) [ 1936.145383][ C1] __napi_poll.constprop.0 (net/core/dev.c:6585) [ 1936.145667][ C1] net_rx_action (net/core/dev.c:6653 net/core/dev.c:6786) [ 1936.145914][ C1] ? __pfx_net_rx_action (net/core/dev.c:6750) [ 1936.146182][ C1] ? lockdep_unlock (kernel/locking/lockdep.c:152 kernel/locking/lockdep.c:148) [ 1936.146444][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 1936.146700][ C1] __do_softirq (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/irq.h:142 kernel/softirq.c:554) [ 1936.146944][ C1] irq_exit_rcu (kernel/softirq.c:427 kernel/softirq.c:632 kernel/softirq.c:644) [ 1936.147171][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1076 (discriminator 14)) [ 1936.147468][ C1] [ 1936.147625][ C1] [ 1936.147783][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:649) [ 1936.148101][ C1] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) [ 1936.148434][ C1] Code: 10 e8 b1 cc a6 fd 48 89 ef e8 c9 54 a7 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d 35 48 f8 74 <74> 0e 5b 5d c3 cc cc cc cc e8 cf 5b c9 fd eb dc 0f 1f 44 00 00 5b All code ======== 0: 10 e8 adc %ch,%al 2: b1 cc mov $0xcc,%cl 4: a6 cmpsb %es:(%rdi),%ds:(%rsi) 5: fd std 6: 48 89 ef mov %rbp,%rdi 9: e8 c9 54 a7 fd call 0xfffffffffda754d7 e: 81 e3 00 02 00 00 and $0x200,%ebx 14: 75 1d jne 0x33 16: 9c pushf 17: 58 pop %rax 18: f6 c4 02 test $0x2,%ah 1b: 75 29 jne 0x46 1d: 48 85 db test %rbx,%rbx 20: 74 01 je 0x23 22: fb sti 23: 65 ff 0d 35 48 f8 74 decl %gs:0x74f84835(%rip) # 0x74f8485f 2a:* 74 0e je 0x3a <-- trapping instruction 2c: 5b pop %rbx 2d: 5d pop %rbp 2e: c3 ret 2f: cc int3 30: cc int3 31: cc int3 32: cc int3 33: e8 cf 5b c9 fd call 0xfffffffffdc95c07 38: eb dc jmp 0x16 3a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 3f: 5b pop %rbx Code starting with the faulting instruction =========================================== 0: 74 0e je 0x10 2: 5b pop %rbx 3: 5d pop %rbp 4: c3 ret 5: cc int3 6: cc int3 7: cc int3 8: cc int3 9: e8 cf 5b c9 fd call 0xfffffffffdc95bdd e: eb dc jmp 0xffffffffffffffec 10: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 15: 5b pop %rbx [ 1936.149432][ C1] RSP: 0018:ffffc90000eefa88 EFLAGS: 00000286 [ 1936.149746][ C1] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff1cd1131 [ 1936.150157][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8b276ea1 [ 1936.150566][ C1] RBP: ffffffff8f023940 R08: 0000000000000001 R09: fffffbfff1ccac84 [ 1936.150975][ C1] R10: ffffffff8e656427 R11: 0000000000000000 R12: 0000000000000cfe [ 1936.151383][ C1] R13: ffffffff8f023a50 R14: ffffffff8f023940 R15: ffff888005860000 [ 1936.151796][ C1] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) [ 1936.152101][ C1] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:616) [ 1936.152335][ C1] process_output_block (drivers/tty/n_tty.c:574) [ 1936.152611][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 1936.152963][ C1] n_tty_write (drivers/tty/n_tty.c:2380) [ 1936.153200][ C1] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2350) [ 1936.153464][ C1] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) [ 1936.153760][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 1936.154012][ C1] ? iterate_tty_write (drivers/tty/tty_io.c:954 drivers/tty/tty_io.c:973) [ 1936.154281][ C1] iterate_tty_write (drivers/tty/tty_io.c:1022) [ 1936.154544][ C1] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1096) [ 1936.154842][ C1] vfs_write (fs/read_write.c:498 fs/read_write.c:590) [ 1936.155070][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 1936.155314][ C1] ? __pfx_vfs_write (fs/read_write.c:571) [ 1936.155562][ C1] ? __might_fault (mm/memory.c:6060 mm/memory.c:6053) [ 1936.155817][ C1] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 1936.156066][ C1] ksys_write (fs/read_write.c:643) [ 1936.156288][ C1] ? __pfx_ksys_write (fs/read_write.c:633) [ 1936.156546][ C1] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 1936.156790][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 1936.157103][ C1] RIP: 0033:0x7f775759e957 [ 1936.157341][ C1] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 All code ======== 0: 0b 00 or (%rax),%eax 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b7 jmp 0xffffffffffffffc7 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 48 89 54 24 18 mov %rdx,0x18(%rsp) 3c: 48 rex.W 3d: 89 .byte 0x89 3e: 74 24 je 0x64 Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 48 89 54 24 18 mov %rdx,0x18(%rsp) 12: 48 rex.W 13: 89 .byte 0x89 14: 74 24 je 0x3a [ 1936.158338][ C1] RSP: 002b:00007ffd49a36dd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1936.158772][ C1] RAX: ffffffffffffffda RBX: 000055980a4aaea0 RCX: 00007f775759e957 [ 1936.159184][ C1] RDX: 0000000000000001 RSI: 000055980a4aaea0 RDI: 0000000000000001 [ 1936.159599][ C1] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 1936.160016][ C1] R10: 0000000000000001 R11: 0000000000000246 R12: 000055980a497510 Finger prints: dump_stack_lvl:validate_chain:__lock_acquire:_raw_spin_lock_nested