======================================
| [ 1149.413288] #6: ffffffff96f678c0 (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) 
| [ 1149.413910] #7: ffffffff96f678c0 (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) 
| [ 1149.414627]
| [ 1149.414627] stack backtrace:
[ 1149.415582] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1149.416463] Call Trace:
[ 1149.416650]  <TASK>
[ 1149.416849] dump_stack_lvl (lib/dump_stack.c:108) 
[ 1149.417141] __lock_acquire (kernel/locking/lockdep.c:5138) 
[ 1149.417491] ? sk_filter_trim_cap (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/filter.c:151) 
[ 1149.417866] lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719) 
[ 1149.418143] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1149.418472] ? sk_filter_trim_cap (net/core/filter.c:165) 
[ 1149.418844] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) 
[ 1149.419160] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1149.419478] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1149.419798] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[ 1149.420192] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 1149.420551] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) 
[ 1149.420955] netif_receive_skb (net/core/dev.c:5742 net/core/dev.c:5801) 
[ 1149.421251] tcf_mirred_to_dev (net/sched/act_mirred.c:329) act_mirred
[ 1149.421669] tcf_mirred_act (net/sched/act_mirred.c:461 (discriminator 2)) act_mirred
[ 1149.422064] ? tcf_skbedit_act (net/sched/act_skbedit.c:51 (discriminator 3)) act_skbedit
[ 1149.422499] tcf_action_exec (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100 net/sched/act_api.c:1074) 
[ 1149.422855] fl_classify (net/sched/cls_flower.c:345) cls_flower
[ 1149.423239] ? __bfs (kernel/locking/lockdep.c:1787) 
[ 1149.423553] ? check_irq_usage (kernel/locking/lockdep.c:2823) 
[ 1149.423926] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) 
[ 1149.424300] ? check_noncircular (kernel/locking/lockdep.c:2172) 
[ 1149.424662] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 1149.424979] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1)) 
[ 1149.425323] tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734 net/sched/cls_api.c:1830) 
[ 1149.425604] tc_run (net/core/dev.c:3945) 
[ 1149.425874] __dev_queue_xmit (net/core/dev.c:4069 net/core/dev.c:4301) 
[ 1149.426191] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 1149.426542] ? eth_header (net/ethernet/eth.c:85) 
[ 1149.426855] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) 
[ 1149.427166] ? __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[ 1149.427523] __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[ 1149.427859] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) 
[ 1149.428190] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 1149.428521] tcp_write_xmit (net/ipv4/tcp_output.c:2792) 
[ 1149.428859] ? tcp_current_mss (./include/net/dst.h:216 net/ipv4/tcp_output.c:1864) 
[ 1149.429181] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) 
[ 1149.429570] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6870) 
[ 1149.429956] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1149.430248] ? tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[ 1149.430575] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[ 1149.430865] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) 
[ 1149.431172] ? process_backlog (net/core/dev.c:5978 (discriminator 2)) 
[ 1149.431494] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[ 1149.431847] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 1149.432214] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) 
[ 1149.432590] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5985) 
[ 1149.432920] __napi_poll.constprop.0 (net/core/dev.c:6584) 
[ 1149.433278] net_rx_action (net/core/dev.c:6655 net/core/dev.c:6786) 
[ 1149.433604] __do_softirq (kernel/softirq.c:553) 
[ 1149.433913] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 1149.434289] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) 
[ 1149.434601] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 1149.434947] kthread (kernel/kthread.c:388) 
[ 1149.435202] ? __pfx_kthread (kernel/kthread.c:341) 
[ 1149.435520] ret_from_fork (arch/x86/kernel/process.c:147) 
[ 1149.435801] ? __pfx_kthread (kernel/kthread.c:341) 


Finger prints:
dump_stack_lvl:__lock_acquire:lock_acquire:_raw_spin_lock_nested