======================================
| [ 1177.264975] #6: ffffffffadf678c0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5787 net/core/dev.c:5859) 
| [ 1177.265468] #7: ffffffffadf678c0 (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) 
| [ 1177.265993]
| [ 1177.265993] stack backtrace:
[ 1177.266695] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1177.267317] Call Trace:
[ 1177.267452]  <TASK>
[ 1177.267609] dump_stack_lvl (lib/dump_stack.c:108) 
[ 1177.267823] __lock_acquire (kernel/locking/lockdep.c:5138) 
[ 1177.268057] ? sk_filter_trim_cap (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/filter.c:151) 
[ 1177.268336] lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719) 
[ 1177.268530] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1177.268769] ? sk_filter_trim_cap (net/core/filter.c:165) 
[ 1177.26
DETECTED CRASH, lowering timeout
9022] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) 
[ 1177.269286] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1177.269515] tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1177.269738] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[ 1177.269996] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 1177.270324] __netif_receive_skb_one_core (net/core/dev.c:5600 (discriminator 4)) 
[ 1177.270610] netif_receive_skb (net/core/dev.c:5800 net/core/dev.c:5859) 
[ 1177.270844] tcf_mirred_to_dev (net/sched/act_mirred.c:327) act_mirred
[ 1177.271172] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred
[ 1177.271473] ? tcf_skbedit_act (net/sched/act_skbedit.c:51 (discriminator 3)) act_skbedit
[ 1177.271783] tcf_action_exec (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100 net/sched/act_api.c:1074) 
[ 1177.272004] fl_classify (net/sched/cls_flower.c:345) cls_flower
[ 1177.272301] ? fl_mask_lookup (net/sched/cls_flower.c:296) cls_flower
[ 1177.272589] ? __bfs (kernel/locking/lockdep.c:1787) 
[ 1177.272782] ? check_irq_usage (kernel/locking/lockdep.c:2823) 
[ 1177.273004] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) 
[ 1177.273280] ? check_noncircular (kernel/locking/lockdep.c:2172) 
[ 1177.273518] ? lock_release (kernel/locking/lockdep.c:5430 kernel/locking/lockdep.c:5774) 
[ 1177.273723] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1)) 
[ 1177.273942] tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734 net/sched/cls_api.c:1830) 
[ 1177.274205] tc_run (net/core/dev.c:3946) 
[ 1177.274405] __dev_queue_xmit (net/core/dev.c:4070 net/core/dev.c:4302) 
[ 1177.274651] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 1177.274859] ip_finish_output2 (./include/linux/netdevice.h:3172 ./include/net/neighbour.h:526 ./include/net/neighbour.h:540 net/ipv4/ip_output.c:235) 
[ 1177.275105] ? __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[ 1177.275326] __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[ 1177.275534] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) 
[ 1177.275787] tcp_write_xmit (net/ipv4/tcp_output.c:2792) 
[ 1177.275995] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) 
[ 1177.276273] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6867) 
[ 1177.276514] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1177.276712] ? tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[ 1177.276918] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[ 1177.277146] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) 
[ 1177.277337] ? process_backlog (net/core/dev.c:6036 (discriminator 2)) 
[ 1177.277582] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[ 1177.277841] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 1177.278112] __netif_receive_skb_one_core (net/core/dev.c:5600 (discriminator 4)) 
[ 1177.278418] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:6043) 
[ 1177.278623] __napi_poll.constprop.0 (net/core/dev.c:6671) 
[ 1177.278910] net_rx_action (net/core/dev.c:6742 net/core/dev.c:6871) 
[ 1177.279136] __do_softirq (kernel/softirq.c:553) 
[ 1177.279353] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 1177.279616] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) 
[ 1177.279855] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 1177.280080] kthread (kernel/kthread.c:388) 
[ 1177.280275] ? __pfx_kthread (kernel/kthread.c:341) 
[ 1177.280497] ret_from_fork (arch/x86/kernel/process.c:147) 
[ 1177.280708] ? __pfx_kthread (kernel/kthread.c:341) 


Finger prints:
dump_stack_lvl:__lock_acquire:lock_acquire:_raw_spin_lock_nested