======================================
| [ 466.319148][ C3] #6: ffffffffa4d447e0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb_internal (./include/linux/rcupdate.h:298 (discriminator 16) ./include/linux/rcupdate.h:750 (discriminator 16) net/core/dev.c:5729 (discriminator 16)) 
| [ 466.319714][ C3] #7: ffffffffa4d447e0 (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) 
| [  466.320278][    C3]
| [  466.320278][    C3] stack backtrace:
[  466.321050][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  466.321714][    C3] Call Trace:
[  466.321898][    C3]  <TASK>
[ 466.322066][ C3] dump_stack_lvl (lib/dump_stack.c:107) 
[ 466.322336][ C3] validate_chain (kernel/locking/lockdep.c:3859) 
[ 466.322595][ C3] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 466.322875][ C3] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 466.323149][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 466.323388][ C3] __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 466.323653][ C3] ? lock_downgrade (kernel/locking/lockdep.c:5656) 
[ 466.323933][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 466.324167][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 466.324437][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 466.324728][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 466.325040][ C3] ? __pfx_sk_filter_trim_cap (net/core/filter.c:130) 
[ 466.325375][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 466.325623][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 466.325880][ C3] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) 
[ 466.326158][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 466.326437][ C3] tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 466.326692][ C3] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2162) 
[ 466.326956][ C3] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) 
[ 466.327254][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 466.327560][ C3] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) 
[ 466.327860][ C3] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 466.328172][ C3] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) 
[ 466.328440][ C3] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 466.328759][ C3] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1136 ./include/linux/skbuff.h:1188 net/ipv4/ip_input.c:390) 
[ 466.329110][ C3] ip_rcv (./include/net/dst.h:460 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569) 
[ 466.329343][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 466.329606][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 466.329885][ C3] ? netif_receive_skb_internal (./include/linux/rcupdate.h:298 (discriminator 16) ./include/linux/rcupdate.h:750 (discriminator 16) net/core/dev.c:5729 (discriminator 16)) 
[ 466.330204][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 466.330475][ C3] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) 
[ 466.330790][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5535) 
[ 466.331137][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 466.331404][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 466.331672][ C3] ? netif_receive_skb_internal (./include/linux/rcupdate.h:298 (discriminator 16) ./include/linux/rcupdate.h:750 (discriminator 16) net/core/dev.c:5729 (discriminator 16)) 
[ 466.331989][ C3] netif_receive_skb_internal (net/core/dev.c:5742) 
[ 466.332307][ C3] ? __pfx_netif_receive_skb_internal (net/core/dev.c:5721) 
[ 466.332685][ C3] ? __copy_skb_header (./include/net/dst.h:290 net/core/skbuff.c:1426) 
[ 466.332968][ C3] ? __skb_clone (./arch/x86/include/asm/atomic.h:53 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:992 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:436 (discriminator 4) net/core/skbuff.c:1497 (discriminator 4)) 
[ 466.333227][ C3] netif_receive_skb (net/core/dev.c:5801) 
[ 466.333512][ C3] tcf_mirred_to_dev (net/sched/act_mirred.c:249 net/sched/act_mirred.c:324) act_mirred
[ 466.333854][ C3] ? __pfx_tcf_skbedit_act (net/sched/act_skbedit.c:43) act_skbedit
[ 466.334234][ C3] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred
[ 466.334551][ C3] tcf_action_exec.part.0 (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100) 
[ 466.334861][ C3] fl_classify (net/sched/cls_flower.c:345) cls_flower
[ 466.335182][ C3] ? __pfx_fl_classify (net/sched/cls_flower.c:316) cls_flower
[ 466.335529][ C3] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 466.335810][ C3] ? check_irq_usage (kernel/locking/lockdep.c:2823) 
[ 466.336097][ C3] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 466.336346][ C3] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) 
[ 466.336647][ C3] ? __bfs (kernel/locking/lockdep.c:1787) 
[ 466.336894][ C3] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) 
[ 466.337176][ C3] ? __bfs (kernel/locking/lockdep.c:1787) 
[ 466.337407][ C3] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 466.337693][ C3] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) 
[ 466.337986][ C3] ? check_noncircular (kernel/locking/lockdep.c:2172) 
[ 466.338272][ C3] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) 
[ 466.338582][ C3] __tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734) 
[ 466.338844][ C3] tcf_classify (net/sched/cls_api.c:1830) 
[ 466.339092][ C3] ? __pfx_tcf_classify (net/sched/cls_api.c:1779) 
[ 466.339380][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 466.339657][ C3] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) 
[ 466.339944][ C3] tc_run (net/core/dev.c:3945) 
[ 466.340202][ C3] ? __pfx_tc_run (net/core/dev.c:3929) 
[ 466.340451][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 466.340742][ C3] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) 
[ 466.341038][ C3] __dev_queue_xmit (net/core/dev.c:4069 net/core/dev.c:4301) 
[ 466.341310][ C3] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 466.341558][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 466.341818][ C3] ? __pfx___dev_queue_xmit (net/core/dev.c:4268) 
[ 466.342116][ C3] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) 
[ 466.342474][ C3] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:772 ./include/net/neighbour.h:496) 
[ 466.342766][ C3] ip_finish_output2 (./include/net/neighbour.h:540 net/ipv4/ip_output.c:235) 
[ 466.343036][ C3] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) 
[ 466.343329][ C3] ? __ip_finish_output (net/ipv4/ip_output.c:256 net/ipv4/ip_output.c:308 net/ipv4/ip_output.c:295) 
[ 466.343624][ C3] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) 
[ 466.343871][ C3] ? __pfx_ip_output (net/ipv4/ip_output.c:427) 
[ 466.344131][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 466.344444][ C3] ? ip_local_out (./include/linux/skbuff.h:1136 ./include/net/dst.h:450 net/ipv4/ip_output.c:129) 
[ 466.344747][ C3] __ip_queue_xmit (net/ipv4/ip_output.c:535 (discriminator 4)) 
[ 466.345026][ C3] ? __skb_clone (./arch/x86/include/asm/atomic.h:53 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:992 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:436 (discriminator 4) net/core/skbuff.c:1497 (discriminator 4)) 
[ 466.345287][ C3] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) 
[ 466.345591][ C3] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1283) 
[ 466.345892][ C3] ? tcp_small_queue_check.isra.0 (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:136 net/ipv4/tcp_output.c:2623) 
[ 466.346229][ C3] tcp_write_xmit (net/ipv4/tcp_output.c:2792) 
[ 466.346531][ C3] ? ipv4_mtu (./include/net/net_namespace.h:383 ./include/linux/netdevice.h:2651 ./include/net/ip.h:465 net/ipv4/route.c:1326) 
[ 466.346787][ C3] ? __pfx_tcp_write_xmit (net/ipv4/tcp_output.c:2702) 
[ 466.347108][ C3] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1853) 
[ 466.347399][ C3] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) 
[ 466.347699][ C3] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6870) 
[ 466.348008][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1624 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 466.348265][ C3] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 466.348518][ C3] ? __lock_acquired (kernel/locking/lockdep.c:339 kernel/locking/lockdep.c:5991) 
[ 466.348828][ C3] ? __pfx_tcp_rcv_state_process (net/ipv4/tcp_input.c:6620) 
[ 466.349139][ C3] ? __pfx___lock_acquired (kernel/locking/lockdep.c:5959) 
[ 466.349431][ C3] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122) 
[ 466.349750][ C3] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[ 466.350009][ C3] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) 
[ 466.350258][ C3] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2162) 
[ 466.350536][ C3] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) 
[ 466.350803][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 466.351106][ C3] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) 
[ 466.351411][ C3] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 466.351726][ C3] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) 
[ 466.351995][ C3] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 466.352293][ C3] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1136 ./include/linux/skbuff.h:1188 net/ipv4/ip_input.c:390) 
[ 466.352668][ C3] ip_rcv (./include/net/dst.h:460 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569) 
[ 466.352898][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 466.353168][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 466.353453][ C3] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5983) 
[ 466.353730][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 466.353993][ C3] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) 
[ 466.354316][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5535) 
[ 466.354667][ C3] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122) 
[ 466.354994][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 466.355246][ C3] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5983) 
[ 466.355520][ C3] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5985) 
[ 466.355803][ C3] __napi_poll.constprop.0 (net/core/dev.c:6585) 
[ 466.356090][ C3] net_rx_action (net/core/dev.c:6653 net/core/dev.c:6786) 
[ 466.356352][ C3] ? __pfx_net_rx_action (net/core/dev.c:6750) 
[ 466.356659][ C3] ? __pfx___schedule (kernel/sched/core.c:6608) 
[ 466.356932][ C3] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 466.357217][ C3] __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) 
[ 466.357472][ C3] ? __pfx_run_ksoftirqd (kernel/softirq.c:914) 
[ 466.357762][ C3] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) 
[ 466.358005][ C3] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 466.358276][ C3] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 466.358587][ C3] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 466.358877][ C3] kthread (kernel/kthread.c:388) 
[ 466.359105][ C3] ? __pfx_kthread (kernel/kthread.c:341) 
[ 466.359361][ C3] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 466.359623][ C3] ? __pfx_kthread (kernel/kthread.c:341) 


Finger prints:
dump_stack_lvl:validate_chain:__lock_acquire:_raw_spin_lock_nested