======================================
| [ 1112.381924] #6: ffffffffbd7678c0 (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) 
| [ 1112.382401] #7: ffffffffbd7678c0 (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) 
| [ 1112.382900]
| [ 1112.382900] stack backtrace:
[ 1112.383537] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1112.384153] Call Trace:
[ 1112.384293]  <TASK>
[ 1112.384419] dump_stack_lvl (lib/dump_stack.c:108) 
[ 1112.384650] __lock_acquire (kernel/locking/lockdep.c:5138) 
[ 1112.384866] ? sk_filter_trim_cap (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/filter.c:151) 
[ 1112.385100] lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719) 
[ 1112.385314] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1112.385512] ? sk_filter_trim_cap (net/core/filter.c:165) 
[ 1112.385754] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) 
[ 1112.386007] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1112.386205] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1112.386402] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[ 1112.386666] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 1112.386913] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) 
[ 1112.387182] netif_receive_skb (net/core/dev.c:5742 net/core/dev.c:5801) 
[ 1112.387422] tcf_mirred_to_dev (net/sched/act_mirred.c:327) act_mirred
[ 1112.387711] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred
[ 1112.387990] ? tcf_skbedit_act (net/sched/act_skbedit.c:51 (discriminator 3)) act_skbedit
[ 1112.388285] ? print_shortest_lock_dependencies_backwards (kernel/locking/lockdep.c:2492) 
[ 1112.388637] tcf_action_exec (net/sched/act_api.c:1101 net/sched/act_api.c:1074) 
[ 1112.388865] fl_classify (net/sched/cls_flower.c:345) cls_flower
[ 1112.389130] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 1112.389366] ? __bfs (kernel/locking/lockdep.c:1787) 
[ 1112.389539] ? check_irq_usage (kernel/locking/lockdep.c:2823) 
[ 1112.389766] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) 
[ 1112.390030] ? check_noncircular (kernel/locking/lockdep.c:2172) 
[ 1112.390254] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1)) 
[ 1112.390498] tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734 net/sched/cls_api.c:1830) 
[ 1112.390791] tc_run (net/core/dev.c:3945) 
[ 1112.391057] __dev_queue_xmit (net/core/dev.c:4069 net/core/dev.c:4301) 
[ 1112.391309] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 1112.391538] ? eth_header (net/ethernet/eth.c:85) 
[ 1112.391749] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) 
[ 1112.391979] ? __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[ 1112.392218] __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[ 1112.392432] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) 
[ 1112.392677] tcp_write_xmit (net/ipv4/tcp_output.c:2792) 
[ 1112.392907] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) 
[ 1112.393167] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6870) 
[ 1112.393434] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1112.393654] ? tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[ 1112.393878] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[ 1112.394078] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) 
[ 1112.394269] ? process_backlog (net/core/dev.c:5978 (discriminator 2)) 
[ 1112.394489] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[ 1112.394755] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 1112.395007] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) 
[ 1112.395285] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5985) 
[ 1112.395501] __napi_poll.constprop.0 (net/core/dev.c:6584) 
[ 1112.395770] net_rx_action (net/core/dev.c:6655 net/core/dev.c:6786) 
[ 1112.395982] __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) 
[ 1112.396193] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 1112.396450] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) 
[ 1112.396672] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 1112.396902] kthread (kernel/kthread.c:388) 
[ 1112.397094] ? __pfx_kthread (kernel/kthread.c:341) 
[ 1112.397301] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 1112.397503] ? __pfx_kthread (kernel/kthread.c:341) 


Finger prints:
dump_stack_lvl:__lock_acquire:lock_acquire:_raw_spin_lock_nested