======================================
| [ 1136.849976] #6: ffffffff859678c0 (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) 
| [ 1136.850452] #7: ffffffff859678c0 (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) 
| [ 1136.850953]
| [ 1136.850953] stack backtrace:
[ 1136.851590] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1136.852216] Call Trace:
[ 1136.852433]  <TASK>
[ 1136.852562] dump_stack_lvl (lib/dump_stack.c:108) 
[ 1136.852785] __lock_acquire (kernel/locking/lockdep.c:5138) 
[ 1136.853021] ? sk_filter_trim_cap (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/filter.c:151) 
[ 1136.853281] lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719) 
[ 1136.853481] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1136.853684] ? sk_filter_trim_cap (net/core/filter.c:165) 
[ 1136.853940] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) 
[ 1136.854178] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1136.854384] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1136.854594] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[ 1136.854837] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 1136.855078] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) 
[ 1136.855351] netif_receive_skb (net/core/dev.c:5742 net/core/dev.c:5801) 
[ 1136.855591] tcf_mirred_to_dev (net/sched/act_mirred.c:327) act_mirred
[ 1136.855892] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred
[ 1136.856173] ? tcf_skbedit_act (net/sched/act_skbedit.c:51 (discriminator 3)) act_skbedit
[ 1136.856470] tcf_action_exec (net/sched/act_api.c:1101 net/sched/act_api.c:1074) 
[ 1136.856701] fl_classify (net/sched/cls_flower.c:345) cls_flower
[ 1136.856968] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 1136.857231] ? __bfs (kernel/locking/lockdep.c:1787) 
[ 1136.857407] ? check_irq_usage (kernel/locking/lockdep.c:2823) 
[ 1136.857648] ? __skb_flow_dissect (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/flow_dissector.c:1101) 
[ 1136.857907] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) 
[ 1136.858155] ? check_noncircular (kernel/locking/lockdep.c:2172) 
[ 1136.858393] ? __skb_flow_dissect (./include/net/flow_dissector.h:443 net/core/flow_dissector.c:1140) 
[ 1136.858670] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1)) 
[ 1136.858906] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1)) 
[ 1136.859144] tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734 net/sched/cls_api.c:1830) 
[ 1136.859365] tc_run (net/core/dev.c:3945) 
[ 1136.859566] __dev_queue_xmit (net/core/dev.c:4069 net/core/dev.c:4301) 
[ 1136.859802] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 1136.860030] ? eth_header (net/ethernet/eth.c:85) 
[ 1136.860243] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) 
[ 1136.860491] ? 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) 
[ 1136.860726] ? __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[ 1136.860966] __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[ 1136.861198] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) 
[ 1136.861444] ? __alloc_skb (net/core/skbuff.c:667) 
[ 1136.861668] tcp_rcv_state_process (net/ipv4/tcp_input.c:6874) 
[ 1136.861941] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1136.862159] ? tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[ 1136.862416] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[ 1136.862636] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) 
[ 1136.862843] ? process_backlog (net/core/dev.c:5978 (discriminator 2)) 
[ 1136.863081] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[ 1136.863323] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 1136.863569] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) 
[ 1136.863849] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5985) 
[ 1136.864064] __napi_poll.constprop.0 (net/core/dev.c:6584) 
[ 1136.864324] net_rx_action (net/core/dev.c:6655 net/core/dev.c:6786) 
[ 1136.864545] __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) 
[ 1136.864749] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 1136.865028] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) 
[ 1136.865233] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 1136.865469] kthread (kernel/kthread.c:388) 
[ 1136.865653] ? __pfx_kthread (kernel/kthread.c:341) 
[ 1136.865865] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 1136.866078] ? __pfx_kthread (kernel/kthread.c:341) 


Finger prints:
dump_stack_lvl:__lock_acquire:lock_acquire:_raw_spin_lock_nested