====================================== | [ 864.279359] #6: ffffffffb53678c0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5729 net/core/dev.c:5801) | [ 864.279826] #7: ffffffffb53678c0 (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) | [ 864.280319] | [ 864.280319] stack backtrace: [ 864.280909] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 864.281525] Call Trace: [ 864.281679] [ 864.281795] dump_stack_lvl (lib/dump_stack.c:108) [ 864.282009] __lock_acquire (kernel/locking/lockdep.c:5138) [ 864.282245] ? sk_filter_trim_cap (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/filter.c:151) [ 864.282487] lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719) [ 864.282696] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 864.282906] ? sk_filter_trim_cap (net/core/filter.c:165) [ 864.283154] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) [ 864.283395] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 864.283621] tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 864.283830] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) [ 864.284090] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 864.284349] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) [ 864.284622] netif_receive_skb (net/core/dev.c:5742 net/core/dev.c:5801) [ 864.284858] tcf_mirred_to_dev (net/sched/act_mirred.c:327) act_mirred [ 864.285151] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred [ 864.285427] ? tcf_skbedit_act (net/sched/act_skbedit.c:51 (discriminator 3)) act_skbedit [ 864.285719] tcf_action_exec (net/sched/act_api.c:1101 net/sched/act_api.c:1074) [ 864.285945] fl_classify (net/sched/cls_flower.c:345) cls_flower [ 864.286211] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 864.286453] ? __bfs (kernel/locking/lockdep.c:1787) [ 864.286639] ? check_irq_usage (kernel/locking/lockdep.c:2823) [ 864.286874] ? __skb_flow_dissect (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/flow_dissector.c:1101) [ 864.287129] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 864.287387] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 864.287621] ? __skb_flow_dissect (./include/net/flow_dissector.h:443 net/core/flow_dissector.c:1140) [ 864.287874] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1)) [ 864.288100] tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734 net/sched/cls_api.c:1830) [ 864.288306] tc_run (net/core/dev.c:3945) [ 864.288498] __dev_queue_xmit (net/core/dev.c:4069 net/core/dev.c:4301) [ 864.288728] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 864.288956] ? eth_header (net/ethernet/eth.c:85) [ 864.289147] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) [ 864.289376] ? ip_skb_dst_mtu (./include/net/net_namespace.h:385 ./include/linux/netdevice.h:2651 ./include/net/ip.h:465 ./include/net/ip.h:502) [ 864.289605] ? __ip_queue_xmit (net/ipv4/ip_output.c:535) [ 864.289826] __ip_queue_xmit (net/ipv4/ip_output.c:535) [ 864.290044] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) [ 864.290275] ? __alloc_skb (net/core/skbuff.c:685) [ 864.290480] tcp_rcv_state_process (net/ipv4/tcp_input.c:6874) [ 864.290743] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) [ 864.290950] ? tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) [ 864.291179] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) [ 864.291393] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) [ 864.291596] ? process_backlog (net/core/dev.c:5978 (discriminator 2)) [ 864.291829] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) [ 864.292079] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 864.292333] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) [ 864.292608] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5985) [ 864.292824] __napi_poll.constprop.0 (net/core/dev.c:6584) [ 864.293085] net_rx_action (net/core/dev.c:6655 net/core/dev.c:6786) [ 864.293299] __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) [ 864.293510] ? tcp_recvmsg (net/ipv4/tcp.c:2580) [ 864.293718] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) [ 864.293924] [ 864.294044] [ 864.294175] __local_bh_enable_ip (kernel/softirq.c:381) [ 864.294418] tcp_recvmsg (net/ipv4/tcp.c:2580) [ 864.294618] inet_recvmsg (net/ipv4/af_inet.c:884 (discriminator 8)) [ 864.294829] __sys_recvfrom (net/socket.c:1046 net/socket.c:1068 net/socket.c:2242) [ 864.295045] ? do_pselect.constprop.0 (fs/select.c:764) [ 864.295304] ? task_mm_cid_work (./include/linux/find.h:64 kernel/sched/core.c:11943) [ 864.295535] __x64_sys_recvfrom (net/socket.c:2260 net/socket.c:2256 net/socket.c:2256) [ 864.295760] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 864.295986] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 864.296283] RIP: 0033:0x7fd7a48d84c0 [ 864.296502] 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 [ 864.297468] RSP: 002b:00007ffeacb237a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002d [ 864.297885] RAX: ffffffffffffffda RBX: 000056158081ba20 RCX: 00007fd7a48d84c0 [ 864.298273] RDX: 0000000000002000 RSI: 00007ffeacb23830 RDI: 0000000000000008 [ 864.298648] RBP: 00007ffeacb23830 R08: 0000000000000000 R09: 0000000000000000 [ 864.299034] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 Finger prints: dump_stack_lvl:__lock_acquire:lock_acquire:_raw_spin_lock_nested