======================================
| [ 1146.807838] #6: ffffffff8e3678c0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5696 net/core/dev.c:5768) 
| [ 1146.808317] #7: ffffffff8e3678c0 (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) 
| [ 1146.808794]
| [ 1146.808794] stack backtrace:
[ 1146.809470] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1146.810060] Call Trace:
[ 1146.810197]  <TASK>
[ 1146.810343] dump_stack_lvl (lib/dump_stack.c:108) 
[ 1146.810544] __lock_acquire (kernel/locking/lockdep.c:5138) 
[ 1146.810785] ? sk_filter_trim_cap (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/filter.c:151) 
[ 1146.811016] lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719) 
[ 1146.811209] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1146.811432] ? sk_filter_trim_cap (net/core/filter.c:165) 
[ 1146.811674] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) 
[ 1146.811903] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1146.812125] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1146.812318] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[ 1146.812580] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 1146.812824] __netif_receive_skb_one_core (net/core/dev.c:5509 (discriminator 4)) 
[ 1146.813109] netif_receive_skb (net/core/dev.c:5709 net/core/dev.c:5768) 
[ 1146.813324] tcf_mirred_to_dev (net/sched/act_mirred.c:329) act_mirred
[ 1146.813622] tcf_mirred_act (net/sched/act_mirred.c:461 (discriminator 2)) act_mirred
[ 1146.813908] ? tcf_skbedit_act (net/sched/act_skbedit.c:51 (discriminator 3)) act_skbedit
[ 1146.814210] ? print_shortest_lock_dependencies_backwards (kernel/locking/lockdep.c:2492) 
[ 1146.814539] tcf_action_exec (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1129 net/sched/act_api.c:1103) 
[ 1146.814770] fl_classify (net/sched/cls_flower.c:345) cls_flower
[ 1146.815044] ? fl_mask_lookup (net/sched/cls_flower.c:296) cls_flower
[ 1146.815319] ? __bfs (kernel/locking/lockdep.c:1787) 
[ 1146.815520] ? check_irq_usage (kernel/locking/lockdep.c:2823) 
[ 1146.815767] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) 
[ 1146.816026] ? check_noncircular (kernel/locking/lockdep.c:2172) 
[ 1146.816251] ? lock_release (kernel/locking/lockdep.c:5430 kernel/locking/lockdep.c:5774) 
[ 1146.816478] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1)) 
[ 1146.816723] tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734 net/sched/cls_api.c:1830) 
[ 1146.816946] tc_run (net/core/dev.c:3912) 
[ 1146.817143] __dev_queue_xmit (net/core/dev.c:4036 net/core/dev.c:4268) 
[ 1146.817380] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 1146.817611] ip_finish_output2 (./include/linux/netdevice.h:3173 ./include/net/neighbour.h:526 ./include/net/neighbour.h:540 net/ipv4/ip_output.c:235) 
[ 1146.817833] ? __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[ 1146.818073] __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[ 1146.818282] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) 
[ 1146.818532] tcp_write_xmit (net/ipv4/tcp_output.c:2792) 
[ 1146.818759] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) 
[ 1146.819008] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6870) 
[ 1146.819248] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1146.819465] ? tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[ 1146.819695] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[ 1146.819897] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) 
[ 1146.820105] ? process_backlog (net/core/dev.c:5945 (discriminator 2)) 
[ 1146.820319] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[ 1146.820580] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 1146.820823] __netif_receive_skb_one_core (net/core/dev.c:5509 (discriminator 4)) 
[ 1146.821109] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5952) 
[ 1146.821318] __napi_poll.constprop.0 (net/core/dev.c:6551) 
[ 1146.821585] net_rx_action (net/core/dev.c:6622 net/core/dev.c:6753) 
[ 1146.821791] __do_softirq (kernel/softirq.c:553) 
[ 1146.822010] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 1146.822278] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) 
[ 1146.822475] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 1146.822714] kthread (kernel/kthread.c:388) 
[ 1146.822902] ? __pfx_kthread (kernel/kthread.c:341) 
[ 1146.823111] ret_from_fork (arch/x86/kernel/process.c:147) 
[ 1146.823306] ? __pfx_kthread (kernel/kthread.c:341) 


Finger prints:
dump_stack_lvl:__lock_acquire:lock_acquire:_raw_spin_lock_nested