====================================== | [ 2369.940111][ C3] #6: ffffffff99d467e0 (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)) | [ 2369.940662][ C3] #7: ffffffff99d467e0 (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) | [ 2369.941190][ C3] | [ 2369.941190][ C3] stack backtrace: [ 2369.941900][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2369.942521][ C3] Call Trace: [ 2369.942705][ C3] [ 2369.942889][ C3] dump_stack_lv DETECTED CRASH, lowering timeout l+0x64/0xb0 [ 2369.943147][ C3] validate_chain (kernel/locking/lockdep.c:3859) [ 2369.943405][ C3] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 2369.943697][ C3] ? 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) [ 2369.943945][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 2369.944178][ C3] __lock_acquire (kernel/locking/lockdep.c:5137) [ 2369.944432][ C3] ? lock_downgrade (kernel/locking/lockdep.c:5656) [ 2369.944705][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 2369.944950][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 2369.945211][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 2369.945455][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2369.945777][ C3] ? __pfx_sk_filter_trim_cap (net/core/filter.c:130) [ 2369.946076][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2369.946326][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 2369.946579][ C3] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) [ 2369.946865][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 2369.947107][ C3] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 2369.947350][ C3] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2162) [ 2369.947632][ C3] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) [ 2369.947916][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2369.948211][ C3] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) [ 2369.948489][ C3] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 2369.948797][ C3] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) [ 2369.949061][ C3] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) [ 2369.949339][ C3] ? tcp_v4_early_demux (net/ipv4/tcp_ipv4.c:1982 (discriminator 3)) [ 2369.949609][ C3] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1131 ./include/linux/skbuff.h:1183 net/ipv4/ip_input.c:390) [ 2369.949959][ C3] ip_rcv (./include/net/dst.h:460 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569) [ 2369.950181][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2369.950421][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 2369.950706][ C3] ? 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)) [ 2369.951010][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2369.951245][ C3] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) [ 2369.951574][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5535) [ 2369.951907][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 2369.952154][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2369.952429][ C3] ? 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)) [ 2369.952765][ C3] netif_receive_skb_internal (net/core/dev.c:5742) [ 2369.953068][ C3] ? __pfx_netif_receive_skb_internal (net/core/dev.c:5721) [ 2369.953429][ C3] ? __copy_skb_header (./include/net/dst.h:290 net/core/skbuff.c:1420) [ 2369.953704][ C3] ? __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)) [ 2369.953955][ C3] netif_receive_skb (net/core/dev.c:5801) [ 2369.954236][ C3] tcf_mirred_to_dev (net/sched/act_mirred.c:249 net/sched/act_mirred.c:324) act_mirred [ 2369.954568][ C3] ? __pfx_tcf_skbedit_act (net/sched/act_skbedit.c:43) act_skbedit [ 2369.954925][ C3] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred [ 2369.955235][ C3] tcf_action_exec.part.0 (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100) [ 2369.955516][ C3] fl_classify (net/sched/cls_flower.c:345) cls_flower [ 2369.955837][ C3] ? __pfx_fl_classify (net/sched/cls_flower.c:316) cls_flower [ 2369.956159][ C3] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) [ 2369.956452][ C3] ? __bfs (kernel/locking/lockdep.c:1787) [ 2369.956670][ C3] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) [ 2369.956938][ C3] ? 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) [ 2369.957211][ C3] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 2369.957498][ C3] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 2369.957781][ C3] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) [ 2369.958069][ C3] ? 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) [ 2369.958319][ C3] ? check_prev_add (kernel/locking/lockdep.c:3172) [ 2369.958578][ C3] __tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734) [ 2369.958844][ C3] tcf_classify (net/sched/cls_api.c:1830) [ 2369.959082][ C3] ? __pfx_tcf_classify (net/sched/cls_api.c:1779) [ 2369.959362][ C3] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) [ 2369.959631][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 2369.959920][ C3] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) [ 2369.960234][ C3] tc_run (net/core/dev.c:3945) [ 2369.960447][ C3] ? __pfx_tc_run (net/core/dev.c:3929) [ 2369.960707][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2369.960965][ C3] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) [ 2369.961243][ C3] __dev_queue_xmit (net/core/dev.c:4069 net/core/dev.c:4301) [ 2369.961536][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 2369.961800][ C3] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) [ 2369.962145][ C3] ? __pfx___dev_queue_xmit (net/core/dev.c:4268) [ 2369.962424][ C3] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:772 ./include/net/neighbour.h:496) [ 2369.962700][ C3] ip_finish_output2 (./include/net/neighbour.h:540 net/ipv4/ip_output.c:235) [ 2369.962965][ C3] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) [ 2369.963246][ C3] ? __ip_finish_output (./include/linux/skbuff.h:1619 ./include/linux/skbuff.h:4884 net/ipv4/ip_output.c:307 net/ipv4/ip_output.c:295) [ 2369.963535][ C3] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) [ 2369.963768][ C3] ? __pfx_ip_output (net/ipv4/ip_output.c:427) [ 2369.964019][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2369.964306][ C3] ? ip_local_out (./include/linux/skbuff.h:1131 ./include/net/dst.h:450 net/ipv4/ip_output.c:129) [ 2369.964568][ C3] __ip_queue_xmit (net/ipv4/ip_output.c:535 (discriminator 4)) [ 2369.964825][ C3] ? __create_object (mm/kmemleak.c:756) [ 2369.965078][ C3] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) [ 2369.965374][ C3] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1283) [ 2369.965666][ C3] ? __tcp_send_ack.part.0 (./include/linux/skbuff.h:1296 net/ipv4/tcp_output.c:4206) [ 2369.965949][ C3] tcp_rcv_state_process (net/ipv4/tcp_input.c:6874) [ 2369.966230][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 2369.966495][ C3] ? 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) [ 2369.966744][ C3] ? __lock_acquired (kernel/locking/lockdep.c:339 kernel/locking/lockdep.c:5991) [ 2369.967016][ C3] ? __pfx_tcp_rcv_state_process (net/ipv4/tcp_input.c:6620) [ 2369.967352][ C3] ? __pfx___lock_acquired (kernel/locking/lockdep.c:5959) [ 2369.967627][ C3] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122) [ 2369.967947][ C3] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) [ 2369.968226][ C3] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) [ 2369.968482][ C3] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2162) [ 2369.968750][ C3] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) [ 2369.969042][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 2369.969363][ C3] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) [ 2369.969644][ C3] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 2369.969954][ C3] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) [ 2369.970206][ C3] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) [ 2369.970481][ C3] ? tcp_v4_early_demux (./include/linux/skbuff.h:1163 net/ipv4/tcp_ipv4.c:1988) [ 2369.970780][ C3] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1131 ./include/linux/skbuff.h:1183 net/ipv4/ip_input.c:390) [ 2369.971116][ C3] ip_rcv (./include/net/dst.h:460 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569) [ 2369.971326][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2369.971563][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 2369.971853][ C3] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5983) [ 2369.972122][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 2369.972360][ C3] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) [ 2369.972685][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5535) [ 2369.973020][ C3] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122) [ 2369.973328][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 2369.973604][ C3] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5983) [ 2369.973908][ C3] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5985) [ 2369.974166][ C3] __napi_poll.constprop.0 (net/core/dev.c:6613) [ 2369.974455][ C3] net_rx_action (net/core/dev.c:6682 net/core/dev.c:6815) [ 2369.974708][ C3] ? __pfx_net_rx_action (net/core/dev.c:6779) [ 2369.975014][ C3] ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:94 arch/x86/kernel/kvmclock.c:80 arch/x86/kernel/kvmclock.c:86) [ 2369.975284][ C3] ? ktime_get (kernel/time/timekeeping.c:195 (discriminator 4) kernel/time/timekeeping.c:289 (discriminator 4) kernel/time/timekeeping.c:388 (discriminator 4) kernel/time/timekeeping.c:848 (discriminator 4)) [ 2369.975510][ C3] ? hrtimer_interrupt (kernel/time/hrtimer.c:1827) [ 2369.975812][ C3] ? hrtimer_interrupt (kernel/time/hrtimer.c:1827) [ 2369.976090][ C3] __do_softirq (kernel/softirq.c:553) [ 2369.976348][ C3] ? tcp_recvmsg (net/ipv4/tcp.c:2580) [ 2369.976617][ C3] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) [ 2369.976844][ C3] [ 2369.976999][ C3] [ 2369.977190][ C3] __local_bh_enable_ip (kernel/softirq.c:381) [ 2369.977478][ C3] tcp_recvmsg (net/ipv4/tcp.c:2580) [ 2369.977726][ C3] ? __pfx_tcp_recvmsg (net/ipv4/tcp.c:2564) [ 2369.977992][ C3] ? core_sys_select (./arch/x86/include/asm/smap.h:33 ./arch/x86/include/asm/uaccess_64.h:120 ./arch/x86/include/asm/uaccess_64.h:133 ./include/linux/uaccess.h:138 fs/select.c:404 fs/select.c:401 fs/select.c:693) [ 2369.978272][ C3] ? __pfx_core_sys_select (fs/select.c:627) [ 2369.978561][ C3] inet_recvmsg (net/ipv4/af_inet.c:884 (discriminator 8)) [ 2369.978832][ C3] ? __pfx_inet_recvmsg (net/ipv4/af_inet.c:874) [ 2369.979107][ C3] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 2369.979370][ C3] ? sockfd_lookup_light (net/socket.c:558) [ 2369.979648][ C3] __sys_recvfrom (net/socket.c:1046 net/socket.c:1068 net/socket.c:2242) [ 2369.979930][ C3] ? __pfx___sys_recvfrom (net/socket.c:2223) [ 2369.980215][ C3] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 2369.980507][ C3] ? do_pselect.constprop.0 (fs/select.c:764) [ 2369.980806][ C3] ? __pfx_do_pselect.constprop.0 (fs/select.c:732) [ 2369.981116][ C3] ? restore_fpregs_from_fpstate (arch/x86/kernel/fpu/xstate.h:202 arch/x86/kernel/fpu/core.c:181) [ 2369.981447][ C3] ? __pfx_restore_fpregs_from_fpstate (arch/x86/kernel/fpu/core.c:137) [ 2369.981791][ C3] __x64_sys_recvfrom (net/socket.c:2256) [ 2369.982057][ C3] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 2369.982439][ C3] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 2369.982683][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 2369.982990][ C3] RIP: 0033:0x7fc7b8f014c0 [ 2369.983235][ C3] Code: 84 00 00 00 00 00 0f 1f 40 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 1d 45 31 c9 45 31 c0 b8 2d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 68 c3 0f 1f 80 00 00 00 00 41 54 48 83 ec 20 All code ======== 0: 84 00 test %al,(%rax) 2: 00 00 add %al,(%rax) 4: 00 00 add %al,(%rax) 6: 0f 1f 40 00 nopl 0x0(%rax) a: f3 0f 1e fa endbr64 e: 41 89 ca mov %ecx,%r10d 11: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 18: 00 19: 85 c0 test %eax,%eax 1b: 75 1d jne 0x3a 1d: 45 31 c9 xor %r9d,%r9d 20: 45 31 c0 xor %r8d,%r8d 23: b8 2d 00 00 00 mov $0x2d,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 68 ja 0x9a 32: c3 ret 33: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 3a: 41 54 push %r12 3c: 48 83 ec 20 sub $0x20,%rsp Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 68 ja 0x70 8: c3 ret 9: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 10: 41 54 push %r12 12: 48 83 ec 20 sub $0x20,%rsp [ 2369.984253][ C3] RSP: 002b:00007ffcb5093f28 EFLAGS: 00000246 ORIG_RAX: 000000000000002d [ 2369.984708][ C3] RAX: ffffffffffffffda RBX: 00005639254f9a20 RCX: 00007fc7b8f014c0 [ 2369.985132][ C3] RDX: 0000000000002000 RSI: 00007ffcb5093fb0 RDI: 0000000000000008 [ 2369.985554][ C3] RBP: 00007ffcb5093fb0 R08: 0000000000000000 R09: 0000000000000000 [ 2369.985991][ C3] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 Finger prints: validate_chain:__lock_acquire:_raw_spin_lock_nested:tcp_v4_rcv