======================================
| [  661.772845] #6: ffffffff9e3678c0 (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) 
| [  661.773326] #7: ffffffff9e3678c0 (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) 
| [  661.773833]
| [  661.773833] stack backtrace:
[  661.774514] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  661.775172] Call Trace:
[  661.775329]  <TASK>
[  661.775459] dump_stack_lvl (lib/dump_stack.c:108) 
[  661.775703] __lock_acquire (kernel/locking/lockdep.c:5138) 
[  661.775932] ? sk_filter_trim_cap (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/filter.c:151) 
[  661.776190] lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719) 
[  661.776407] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  661.776619] ? sk_filter_trim_cap (net/core/filter.c:165) 
[  661.776866] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) 
[  6
DETECTED CRASH, lowering timeout
61.777121] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  661.777331] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  661.777542] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[  661.777796] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[  661.778073] __netif_receive_skb_one_core (net/core/dev.c:5509 (discriminator 4)) 
[  661.778365] netif_receive_skb (net/core/dev.c:5709 net/core/dev.c:5768) 
[  661.778594] tcf_mirred_to_dev (net/sched/act_mirred.c:327) act_mirred
[  661.778905] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred
[  661.779166] ? tcf_skbedit_act (net/sched/act_skbedit.c:51 (discriminator 3)) act_skbedit
[  661.779448] tcf_action_exec (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100 net/sched/act_api.c:1074) 
[  661.779695] fl_classify (net/sched/cls_flower.c:345) cls_flower
[  661.779964] ? fl_mask_lookup (net/sched/cls_flower.c:296) cls_flower
[  661.780266] ? __bfs (kernel/locking/lockdep.c:1787) 
[  661.780463] ? check_irq_usage (kernel/locking/lockdep.c:2823) 
[  661.780682] ? check_irq_usage (kernel/locking/lockdep.c:2823) 
[  661.780902] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) 
[  661.781175] ? check_noncircular (kernel/locking/lockdep.c:2172) 
[  661.781409] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1)) 
[  661.781655] tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734 net/sched/cls_api.c:1830) 
[  661.781872] tc_run (net/core/dev.c:3912) 
[  661.782050] __dev_queue_xmit (net/core/dev.c:4036 net/core/dev.c:4268) 
[  661.782294] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[  661.782532] ip_finish_output2 (./include/linux/netdevice.h:3173 ./include/net/neighbour.h:526 ./include/net/neighbour.h:540 net/ipv4/ip_output.c:235) 
[  661.782772] ? __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[  661.783017] __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[  661.783235] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) 
[  661.783479] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[  661.783706] tcp_write_xmit (net/ipv4/tcp_output.c:2792) 
[  661.783971] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) 
[  661.784228] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6870) 
[  661.784493] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  661.784744] ? tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[  661.784982] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[  661.785190] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) 
[  661.785399] ? process_backlog (net/core/dev.c:5945 (discriminator 2)) 
[  661.785638] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[  661.785937] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[  661.786183] __netif_receive_skb_one_core (net/core/dev.c:5509 (discriminator 4)) 
[  661.786467] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5952) 
[  661.786690] __napi_poll.constprop.0 (net/core/dev.c:6551) 
[  661.787000] net_rx_action (net/core/dev.c:6622 net/core/dev.c:6753) 
[  661.787235] __do_softirq (kernel/softirq.c:553) 
[  661.787439] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[  661.787708] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) 
[  661.787957] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[  661.788188] kthread (kernel/kthread.c:388) 
[  661.788375] ? __pfx_kthread (kernel/kthread.c:341) 
[  661.788608] ret_from_fork (arch/x86/kernel/process.c:147) 
[  661.788816] ? __pfx_kthread (kernel/kthread.c:341) 


Finger prints:
dump_stack_lvl:__lock_acquire:lock_acquire:_raw_spin_lock_nested