======================================
| [  861.833604] #6: ffffffff999678c0 (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) 
| [  861.834198] #7: ffffffff999678c0 (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) 
| [  861.834825]
| [  861.834825] stack backtrace:
[  861.835641] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  861.836367] Call Trace:
[  861.836512]  <TASK>
[  861.836660] dump_stack_lvl (lib/dump_stack.c:108) 
[  861.836891] __lock_acquire (kernel/locking/lockdep.c:5138) 
[  861.837141] ? sk_filter_trim_cap (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/filter.c:151) 
[  861.837400] lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719) 
[  861.837611] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  861.837842] ? sk_filter_trim_cap (net/core/filter.c:165) 
[  861.838079] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) 
[  861.838322] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  861.838532] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  861.838760] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[  861.839025] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[  861.839276] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) 
[  861.839557] netif_receive_skb (net/core/dev.c:5742 net/core/dev.c:5801) 
[  861.839804] tcf_mirred_to_dev (net/sched/act_mirred.c:327) act_mirred
[  861.840105] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred
[  861.840406] ? tcf_skbedit_act (net/sched/act_skbedit.c:51 (discriminator 3)) act_skbedit
[  861.840707] tcf_action_exec (net/sched/act_api.c:1101 net/sched/act_api.c:1074) 
[  861.840941] fl_classify (net/sched/cls_flower.c:345) cls_flower
[  861.841231] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[  861.841478] ? __bfs (kernel/locking/lockdep.c:1787) 
[  861.841673] ? check_irq_usage (kernel/locking/lockdep.c:2823) 
[  861.841918] ? __skb_flow_dissect (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/flow_dissector.c:1101) 
[  861.842168] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) 
[  861.842441] ? check_noncircular (kernel/locking/lockdep.c:2172) 
[  861.842665] ? __skb_flow_dissect (./include/net/flow_dissector.h:443 net/core/flow_dissector.c:1140) 
[  861.842921] ? lock_release (kernel/locking/lockdep.c:5430 kernel/locking/lockdep.c:5774) 
[  861.843148] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1)) 
[  861.843383] tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734 net/sched/cls_api.c:1830) 
[  861.843605] tc_run (net/core/dev.c:3945) 
[  861.843795] __dev_queue_xmit (net/core/dev.c:4069 net/core/dev.c:4301) 
[  861.844039] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[  861.844269] ? eth_header (net/ethernet/eth.c:85) 
[  861.844484] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) 
[  861.844720] ? 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) 
[  861.844959] ? __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[  861.845181] __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[  861.845409] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) 
[  861.845656] ? __alloc_skb (net/core/skbuff.c:667) 
[  861.845874] tcp_rcv_state_process (net/ipv4/tcp_input.c:6874) 
[  861.846149] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  861.846373] ? tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[  861.846597] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[  861.846820] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) 
[  861.847012] ? process_backlog (net/core/dev.c:5978 (discriminator 2)) 
[  861.847242] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[  861.847511] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[  861.847771] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) 
[  861.848057] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5985) 
[  861.848281] __napi_poll.constprop.0 (net/core/dev.c:6584) 
[  861.848549] net_rx_action (net/core/dev.c:6655 net/core/dev.c:6786) 
[  861.848756] __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) 
[  861.848968] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[  861.849236] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) 
[  861.849431] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[  861.849662] kthread (kernel/kthread.c:388) 
[  861.849859] ? __pfx_kthread (kernel/kthread.c:341) 
[  861.850062] ret_from_fork (arch/x86/kernel/process.c:153) 
[  861.850270] ? __pfx_kthread (kernel/kthread.c:341) 


Finger prints:
dump_stack_lvl:__lock_acquire:lock_acquire:_raw_spin_lock_nested