======================================
| [ 1154.290464] #6: ffffffff891678c0 (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)
| [ 1154.291126] #7: ffffffff891678c0 (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)
| [ 1154.291852]
| [ 1154.291852] stack backtrace:
[ 1154.292695] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1154.293535] Call Trace:
[ 1154.293723]
[ 1154.293899] dump_stack_lvl (lib/dump_stack.c:108)
[ 1154.294187] __lock_acquire (kernel/locking/lockdep.c:5138)
[ 1154.294496] lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719)
[ 1154.294771] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327)
[ 1154.295060] ? sk_filter_trim_cap (net/core/filter.c:165)
[ 1154.295395] _raw_spin_lock_nested (kernel/locking/spinlock.c:379)
[ 1154.295730] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327)
[ 1154.296026] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327)
[ 1154.296286] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1))
[ 1154.296628] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234)
[ 1154.296975] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4))
[ 1154.297336] netif_receive_skb (net/core/dev.c:5742 net/core/dev.c:5801)
[ 1154.297651] tcf_mirred_to_dev (net/sched/act_mirred.c:329) act_mirred
[ 1154.298063] tcf_mirred_act (net/sched/act_mirred.c:461 (discriminator 2)) act_mirred
[ 1154.298396] ? tcf_skbedit_act (net/sched/act_skbedit.c:51 (discriminator 3)) act_skbedit
[ 1154.298683] tcf_action_exec (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100 net/sched/act_api.c:1074)
[ 1154.298902] fl_classify (net/sched/cls_flower.c:345) cls_flower
[ 1154.299163] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1))
[ 1154.299405] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1))
[ 1154.299635] ? print_shortest_lock_dependencies_backwards (kernel/locking/lockdep.c:2500)
[ 1154.299970] ? find_held_lock (kernel/locking/lockdep.c:5244)
[ 1154.300170] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1))
[ 1154.300402] ? listening_get_next (net/ipv4/tcp_ipv4.c:2555 net/ipv4/tcp_ipv4.c:2606)
[ 1154.300632] tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734 net/sched/cls_api.c:1830)
[ 1154.300839] tc_run (net/core/dev.c:3945)
[ 1154.301022] __dev_queue_xmit (net/core/dev.c:4069 net/core/dev.c:4301)
[ 1154.301259] ? __ip_queue_xmit (net/ipv4/ip_output.c:535)
[ 1154.301486] ip_finish_output2 (./include/linux/netdevice.h:3171 ./include/net/neighbour.h:526 ./include/net/neighbour.h:540 net/ipv4/ip_output.c:235)
[ 1154.301718] ? __ip_queue_xmit (net/ipv4/ip_output.c:535)
[ 1154.301944] __ip_queue_xmit (net/ipv4/ip_output.c:535)
[ 1154.302147] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4))
[ 1154.302388] tcp_write_xmit (net/ipv4/tcp_output.c:2792)
[ 1154.302608] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977)
[ 1154.302865] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6881)
[ 1154.303103] ? lock_acquire (kernel/locking/lockdep.c:5758)
[ 1154.303340] ? tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1930)
[ 1154.303556] ? lock_is_held_type (kernel/locking/lockdep.c:5495 kernel/locking/lockdep.c:5825)
[ 1154.303788] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1930)
[ 1154.303982] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2330)
[ 1154.304182] ? process_backlog (net/core/dev.c:5978 (discriminator 2))
[ 1154.304407] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1))
[ 1154.304660] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234)
[ 1154.304909] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4))
[ 1154.305161] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5985)
[ 1154.305376] __napi_poll.constprop.0 (net/core/dev.c:6584)
[ 1154.305635] net_rx_action (net/core/dev.c:6655 net/core/dev.c:6786)
[ 1154.305853] __do_softirq (kernel/softirq.c:553)
[ 1154.306043] irq_exit_rcu (kernel/softirq.c:427 kernel/softirq.c:632 kernel/softirq.c:644)
[ 1154.306241] common_interrupt (arch/x86/kernel/irq.c:247 (discriminator 14))
[ 1154.306457]
[ 1154.306572]
[ 1154.306704] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:640)
[ 1154.306937] RIP: 0010:finish_task_switch.isra.0 (./arch/x86/include/asm/jump_label.h:27 kernel/sched/core.c:4960 kernel/sched/core.c:5284)
[ 1154.307223] Code: 89 ff 48 c7 02 00 00 00 00 ff d0 0f 1f 00 48 85 db 75 e2 4c 89 ff e8 7e 50 ca 00 e8 f9 e7 10 00 fb 65 48 8b 04 25 40 ef 02 00 <66> 90 4d 85 ed 74 21 65 48 8b 04 25 40 ef 02 00 4c 3b a8 e8 04 00
All code
========
0: 89 ff mov %edi,%edi
2: 48 c7 02 00 00 00 00 movq $0x0,(%rdx)
9: ff d0 call *%rax
b: 0f 1f 00 nopl (%rax)
e: 48 85 db test %rbx,%rbx
11: 75 e2 jne 0xfffffffffffffff5
13: 4c 89 ff mov %r15,%rdi
16: e8 7e 50 ca 00 call 0xca5099
1b: e8 f9 e7 10 00 call 0x10e819
20: fb sti
21: 65 48 8b 04 25 40 ef mov %gs:0x2ef40,%rax
28: 02 00
2a:* 66 90 xchg %ax,%ax <-- trapping instruction
2c: 4d 85 ed test %r13,%r13
2f: 74 21 je 0x52
31: 65 48 8b 04 25 40 ef mov %gs:0x2ef40,%rax
38: 02 00
3a: 4c rex.WR
3b: 3b .byte 0x3b
3c: a8 e8 test $0xe8,%al
3e: 04 00 add $0x0,%al
Code starting with the faulting instruction
===========================================
0: 66 90 xchg %ax,%ax
2: 4d 85 ed test %r13,%r13
5: 74 21 je 0x28
7: 65 48 8b 04 25 40 ef mov %gs:0x2ef40,%rax
e: 02 00
10: 4c rex.WR
11: 3b .byte 0x3b
12: a8 e8 test $0xe8,%al
14: 04 00 add $0x0,%al
[ 1154.308178] RSP: 0018:ffffa97c800a3e28 EFLAGS: 00000206
[ 1154.308449] RAX: ffff9b6c81338000 RBX: 0000000000000000 RCX: 0000000000000000
[ 1154.308828] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8778b4c7
[ 1154.309189] RBP: ffffa97c800a3e58 R08: 0000000000000001 R09: 0000000000000001
[ 1154.309568] R10: 0000000000000000 R11: 0000000000000001 R12: ffff9b6c81c90000
[ 1154.309931] R13: 0000000000000000 R14: ffff9b6cbecaf998 R15: ffff9b6cbecaf980
[ 1154.310294] ? finish_task_switch.isra.0 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/sched/sched.h:1397 kernel/sched/core.c:5154 kernel/sched/core.c:5272)
[ 1154.310563] ? finish_task_switch.isra.0 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/sched/sched.h:1397 kernel/sched/core.c:5154 kernel/sched/core.c:5272)
[ 1154.310832] __schedule (kernel/sched/core.c:6733)
[ 1154.311019] schedule_idle (./arch/x86/include/asm/bitops.h:206 (discriminator 1) ./arch/x86/include/asm/bitops.h:238 (discriminator 1) ./include/linux/thread_info.h:184 (discriminator 1) ./include/linux/sched.h:2102 (discriminator 1) kernel/sched/core.c:6844 (discriminator 1))
[ 1154.311226] do_idle (kernel/sched/idle.c:344)
[ 1154.311413] ? finish_task_switch.isra.0 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/sched/sched.h:1397 kernel/sched/core.c:5154 kernel/sched/core.c:5272)
[ 1154.311684] cpu_startup_entry (kernel/sched/idle.c:409 (discriminator 1))
[ 1154.311905] start_secondary (arch/x86/kernel/smpboot.c:336)
Finger prints:
dump_stack_lvl:__lock_acquire:lock_acquire:_raw_spin_lock_nested