====================================== | [ 884.891022] #6: ffffffff995678c0 (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) | [ 884.891510] #7: ffffffff995678c0 (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) | [ 884.891998] | [ 884.891998] stack backtrace: [ 884.892626] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 884.893236] Call Trace: [ 884.893408] <IRQ> [ 884.893527] dump_stack_lvl (lib/dump_stack.c:108) [ 884.893732] __lock_acquire (kernel/locking/lockdep.c:5138) [ 884.893954] ? sk_filter_trim_cap (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/filter.c:151) [ 884.894193] lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719) [ 884.894395] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) [ 884.894624] ? sk_filter_trim_cap (net/core/filter.c:165) [ 884.895020] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) [ 884.895255] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) [ 884.895459] tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) [ 884.895689] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) [ 884.895942] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 884.896194] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) [ 884.896466] netif_receive_skb (net/core/dev.c:5742 net/core/dev.c:5801) [ 884.896722] tcf_mirred_to_dev (net/sched/act_mirred.c:327) act_mirred [ 884.897014] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred [ 884.897285] ? tcf_skbedit_act (net/sched/act_skbedit.c:51 (discriminator 3)) act_skbedit [ 884.897575] tcf_action_exec (net/sched/act_api.c:1101 net/sched/act_api.c:1074) [ 884.897797] fl_classify (net/sched/cls_flower.c:345) cls_flower [ 884.898080] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 884.898304] ? __bfs (kernel/locking/lockdep.c:1787) [ 884.898481] ? check_irq_usage (kernel/locking/lockdep.c:2823) [ 884.898705] ? lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719) [ 884.898921] ? __skb_flow_dissect (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/flow_dissector.c:1101) [ 884.899180] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) [ 884.899426] ? check_noncircular (kernel/locking/lockdep.c:2172) [ 884.899652] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1)) [ 884.899876] tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734 net/sched/cls_api.c:1830) [ 884.900110] tc_run (net/core/dev.c:3945) [ 884.900286] __dev_queue_xmit (net/core/dev.c:4069 net/core/dev.c:4301) [ 884.900508] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 884.900722] ? eth_header (net/ethernet/eth.c:85) [ 884.900915] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) [ 884.901138] ? ip_skb_dst_mtu (./include/net/net_namespace.h:383 ./include/linux/netdevice.h:2651 ./include/net/ip.h:465 ./include/net/ip.h:502) [ 884.901383] ? __ip_queue_xmit (net/ipv4/ip_output.c:535) [ 884.901606] __ip_queue_xmit (net/ipv4/ip_output.c:535) [ 884.901821] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) [ 884.902051] ? __alloc_skb (net/core/skbuff.c:685) [ 884.902251] tcp_rcv_state_process (net/ipv4/tcp_input.c:6885) [ 884.902527] ? lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719) [ 884.902734] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) [ 884.902938] ? tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1930) [ 884.903147] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1930) [ 884.903351] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2330) [ 884.903576] ? process_backlog (net/core/dev.c:5978 (discriminator 2)) [ 884.903794] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) [ 884.904042] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 884.904291] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) [ 884.904578] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5985) [ 884.904807] __napi_poll.constprop.0 (net/core/dev.c:6584) [ 884.905051] net_rx_action (net/core/dev.c:6655 net/core/dev.c:6786) [ 884.905255] __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) [ 884.905457] ? inet_shutdown (net/ipv4/af_inet.c:943) [ 884.905678] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) [ 884.905885] </IRQ> [ 884.906005] <TASK> [ 884.906124] __local_bh_enable_ip (kernel/softirq.c:381) [ 884.906351] inet_shutdown (net/ipv4/af_inet.c:943) [ 884.906552] __sys_shutdown (./include/linux/file.h:32 net/socket.c:2438) [ 884.906757] __x64_sys_shutdown (net/socket.c:2445 net/socket.c:2443 net/socket.c:2443) [ 884.907008] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 884.907210] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 884.907482] RIP: 0033:0x7f8ee1638beb [ 884.907682] Code: 73 01 c3 48 8b 0d 15 92 1b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 30 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e5 91 1b 00 f7 d8 64 89 01 48 All code ======== 0: 73 01 jae 0x3 2: c3 ret 3: 48 8b 0d 15 92 1b 00 mov 0x1b9215(%rip),%rcx # 0x1b921f a: f7 d8 neg %eax c: 64 89 01 mov %eax,%fs:(%rcx) f: 48 83 c8 ff or $0xffffffffffffffff,%rax 13: c3 ret 14: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 1b: 00 00 00 1e: 90 nop 1f: f3 0f 1e fa endbr64 23: b8 30 00 00 00 mov $0x30,%eax 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8b 0d e5 91 1b 00 mov 0x1b91e5(%rip),%rcx # 0x1b921f 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8b 0d e5 91 1b 00 mov 0x1b91e5(%rip),%rcx # 0x1b91f5 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W [ 884.908694] RSP: 002b:00007ffeb382cdb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000030 [ 884.909129] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f8ee1638beb [ 884.909514] RDX: 000055fbec27e420 RSI: 0000000000000001 RDI: 0000000000000008 [ 884.909894] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000 [ 884.910302] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 Finger prints: dump_stack_lvl:__lock_acquire:lock_acquire:_raw_spin_lock_nested