======================================
| [  653.993302] #6: ffffffffb65678c0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5738 net/core/dev.c:5810) 
| [  653.993960] #7: ffffffffb65678c0 (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) 
| [  653.994646]
| [  653.994646] stack backtrace:
[  653.995570] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  653.996465] Call Trace:
[  653.996663]  <TASK>
[  653.996890] dump_stack_lvl (lib/dump_stack.c:108) 
[  653.997227] __lock_acquire (kernel/locking/lockdep.c:5138) 
[  653.997521] ? sk_filter_trim_cap (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/filter.c:151) 
[  653.997893] lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719) 
[  653.998174] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  653.998499] ? sk_filter_trim_cap (net/core/filter.c:165) 
[  653.998836] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) 
[  653.999208] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  653.999497] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  653.999808] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 

DETECTED CRASH, lowering timeout
[  654.000205] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[  654.000558] __netif_receive_skb_one_core (net/core/dev.c:5551 (discriminator 4)) 
[  654.000970] netif_receive_skb (net/core/dev.c:5751 net/core/dev.c:5810) 
[  654.001286] tcf_mirred_to_dev (net/sched/act_mirred.c:327) act_mirred
[  654.001719] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred
[  654.002135] ? tcf_skbedit_act (net/sched/act_skbedit.c:51 (discriminator 3)) act_skbedit
[  654.002579] tcf_action_exec (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100 net/sched/act_api.c:1074) 
[  654.002917] fl_classify (net/sched/cls_flower.c:345) cls_flower
[  654.003324] ? fl_mask_lookup (net/sched/cls_flower.c:296) cls_flower
[  654.003743] ? __bfs (kernel/locking/lockdep.c:1787) 
[  654.004022] ? check_irq_usage (kernel/locking/lockdep.c:2823) 
[  654.004343] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) 
[  654.004729] ? check_noncircular (kernel/locking/lockdep.c:2172) 
[  654.005057] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1)) 
[  654.005407] tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734 net/sched/cls_api.c:1830) 
[  654.005730] tc_run (net/core/dev.c:3920) 
[  654.006015] __dev_queue_xmit (net/core/dev.c:4044 net/core/dev.c:4276) 
[  654.006330] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[  654.006674] ip_finish_output2 (./include/linux/netdevice.h:3172 ./include/net/neighbour.h:526 ./include/net/neighbour.h:540 net/ipv4/ip_output.c:235) 
[  654.006980] ? __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[  654.007349] __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[  654.007680] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) 
[  654.007974] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[  654.008182] tcp_write_xmit (net/ipv4/tcp_output.c:2792) 
[  654.008430] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) 
[  654.008683] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6867) 
[  654.008951] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  654.009146] ? tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[  654.009385] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[  654.009585] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) 
[  654.009817] ? process_backlog (net/core/dev.c:5987 (discriminator 2)) 
[  654.010032] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[  654.010297] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[  654.010538] __netif_receive_skb_one_core (net/core/dev.c:5551 (discriminator 4)) 
[  654.010861] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5994) 
[  654.011109] __napi_poll.constprop.0 (net/core/dev.c:6622) 
[  654.011351] net_rx_action (net/core/dev.c:6693 net/core/dev.c:6824) 
[  654.011580] __do_softirq (kernel/softirq.c:553) 
[  654.011778] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[  654.012065] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) 
[  654.012261] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[  654.012512] kthread (kernel/kthread.c:388) 
[  654.012692] ? __pfx_kthread (kernel/kthread.c:341) 
[  654.012931] ret_from_fork (arch/x86/kernel/process.c:147) 
[  654.013159] ? __pfx_kthread (kernel/kthread.c:341) 


Finger prints:
dump_stack_lvl:__lock_acquire:lock_acquire:_raw_spin_lock_nested