======================================
| [ 2538.836096][ C3] #6: ffffffff9b5447e0 (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)) 
| [ 2538.836636][ C3] #7: ffffffff9b5447e0 (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) 
| [ 2538.837161][    C3]
| [ 2538.837161][    C3] stack backtrace:
[ 2538.837884][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 2538.838529][    C3] Call Trace:
[ 2538.838704][    C3]  <IRQ>
[ 2538.838874][ C3] dump_stack_lvl (lib/dump_stack.c:107) 
[ 2538.839117][ C3] validate_chain (kernel/locking/lockdep.c:3859) 
[ 2538.839373][ C3] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 2538.839644][ 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) 
[ 2538.839892][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 2538.840122][ C3] __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 2538.840374][ C3] ? lock_downgrade (kernel/locking/lockdep.c:5656) 
[ 2538.840635][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 2538.840884][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 2538.841158][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) 
[ 2538.841405][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 2538.841715][ C3] ? __pfx_sk_filter_trim_cap (net/core/filter.c:130) 
[ 2538.842009][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 2538.842276][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) 
[ 2538.842521][ C3] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) 
[ 2538.842791][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) 
[ 2538.843047][ C3] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) 
[ 2538.843291][ C3] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2163) 
[ 2538.843555][ C3] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) 
[ 2538.843825][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 2538.844130][ C3] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) 
[ 2538.844430][ C3] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 2538.844723][ C3] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) 
[ 2538.844984][ C3] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 2538.845275][ C3] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1131 ./include/linux/skbuff.h:1183 net/ipv4/ip_input.c:390) 
[ 2538.845606][ 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) 
[ 2538.845827][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 2538.846073][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 2538.846363][ 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)) 
[ 2538.846677][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 2538.846920][ C3] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) 
[ 2538.847240][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5535) 
[ 2538.847571][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 2538.847824][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 2538.848070][ 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)) 
[ 2538.848385][ C3] netif_receive_skb_internal (net/core/dev.c:5742) 
[ 2538.848695][ C3] ? __pfx_netif_receive_skb_internal (net/core/dev.c:5721) 
[ 2538.849033][ C3] ? __copy_skb_header (./include/net/dst.h:290 net/core/skbuff.c:1423) 
[ 2538.849306][ 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:1494 (discriminator 4)) 
[ 2538.849566][ C3] netif_receive_skb (net/core/dev.c:5801) 
[ 2538.849832][ C3] tcf_mirred_to_dev (net/sched/act_mirred.c:251 net/sched/act_mirred.c:326) act_mirred
[ 2538.850157][ C3] ? __pfx_tcf_skbedit_act (net/sched/act_skbedit.c:43) act_skbedit
[ 2538.850509][ C3] tcf_mirred_act (net/sched/act_mirred.c:461 (discriminator 2)) act_mirred
[ 2538.850824][ C3] tcf_action_exec.part.0 (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100) 
[ 2538.851115][ C3] fl_classify (net/sched/cls_flower.c:345) cls_flower
[ 2538.851418][ C3] ? __pfx_fl_classify (net/sched/cls_flower.c:316) cls_flower
[ 2538.851742][ C3] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 2538.852004][ C3] ? check_irq_usage (kernel/locking/lockdep.c:2823) 
[ 2538.852277][ C3] ? __pfx_check_irq_usage (kernel/locking/lockdep.c:2790) 
[ 2538.852563][ C3] ? __bfs (kernel/locking/lockdep.c:1787) 
[ 2538.852791][ C3] ? __pfx_hlock_conflict (kernel/locking/lockdep.c:2016) 
[ 2538.853079][ C3] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) 
[ 2538.853367][ C3] ? check_noncircular (kernel/locking/lockdep.c:2172) 
[ 2538.853647][ 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) 
[ 2538.853895][ C3] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2163) 
[ 2538.854191][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 2538.854431][ C3] ? get_stack_info_noinstr (arch/x86/kernel/dumpstack_64.c:173) 
[ 2538.854730][ C3] ? get_stack_info_noinstr (arch/x86/kernel/dumpstack_64.c:173) 
[ 2538.855021][ C3] __tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734) 
[ 2538.855282][ C3] tcf_classify (net/sched/cls_api.c:1830) 
[ 2538.855535][ C3] ? __pfx_tcf_classify (net/sched/cls_api.c:1779) 
[ 2538.855810][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 2538.856088][ C3] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) 
[ 2538.856374][ C3] tc_run (net/core/dev.c:3945) 
[ 2538.856595][ C3] ? __pfx_tc_run (net/core/dev.c:3929) 
[ 2538.856839][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 2538.857100][ C3] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) 
[ 2538.857378][ C3] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:802 net/core/dev.c:4284) 
[ 2538.857646][ C3] __dev_queue_xmit (net/core/dev.c:4069 net/core/dev.c:4301) 
[ 2538.857908][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 2538.858146][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 2538.858398][ C3] ? __pfx___dev_queue_xmit (net/core/dev.c:4268) 
[ 2538.858681][ C3] ? neigh_hh_output (./include/linux/seqlock.h:74 ./include/linux/seqlock.h:772 ./include/net/neighbour.h:496) 
[ 2538.858958][ C3] ? vrf_ip_local_out (./include/net/dst.h:450 ./include/net/dst.h:448 drivers/net/vrf.c:522) vrf
[ 2538.859265][ C3] ip_finish_output2 (./include/net/neighbour.h:540 net/ipv4/ip_output.c:235) 
[ 2538.859540][ C3] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) 
[ 2538.859829][ C3] ? __ip_finish_output (net/ipv4/ip_output.c:256 net/ipv4/ip_output.c:308 net/ipv4/ip_output.c:295) 
[ 2538.860119][ C3] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) 
[ 2538.860351][ C3] ? __pfx_ip_output (net/ipv4/ip_output.c:427) 
[ 2538.860603][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 2538.860901][ C3] ? ip_local_out (./include/linux/skbuff.h:1131 ./include/net/dst.h:450 net/ipv4/ip_output.c:129) 
[ 2538.861170][ C3] __ip_queue_xmit (net/ipv4/ip_output.c:535 (discriminator 4)) 
[ 2538.861439][ 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:1494 (discriminator 4)) 
[ 2538.861690][ C3] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) 
[ 2538.861982][ C3] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1283) 
[ 2538.862287][ 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) 
[ 2538.862607][ C3] tcp_write_xmit (net/ipv4/tcp_output.c:2792) 
[ 2538.862874][ C3] ? ipv4_mtu (./include/net/net_namespace.h:383 ./include/linux/netdevice.h:2651 ./include/net/ip.h:465 net/ipv4/route.c:1326) 
[ 2538.863106][ C3] ? __pfx_tcp_write_xmit (net/ipv4/tcp_output.c:2702) 
[ 2538.863400][ C3] ? __pfx_tcp_current_mss (net/ipv4/tcp_output.c:1853) 
[ 2538.863689][ C3] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) 
[ 2538.863988][ C3] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6881) 
[ 2538.864283][ C3] ? __pfx_tcp_rcv_state_process (net/ipv4/tcp_input.c:6621) 
[ 2538.864592][ C3] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 2538.864856][ C3] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2512 net/ipv4/tcp_ipv4.c:2327) 
[ 2538.865108][ 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) 
[ 2538.865360][ C3] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1930) 
[ 2538.865605][ C3] ? __pfx_tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1887) 
[ 2538.865881][ C3] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2330) 
[ 2538.866135][ C3] ? __pfx_tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2163) 
[ 2538.866394][ C3] ? __pfx_raw_v4_input (net/ipv4/raw.c:165) 
[ 2538.866658][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 2538.866968][ C3] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 8)) 
[ 2538.867253][ C3] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 2538.867554][ C3] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) 
[ 2538.867820][ C3] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 2538.868110][ C3] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1131 ./include/linux/skbuff.h:1183 net/ipv4/ip_input.c:390) 
[ 2538.868457][ 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) 
[ 2538.868675][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 2538.868918][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 2538.869197][ C3] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5983) 
[ 2538.869457][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 2538.869697][ C3] __netif_receive_skb_one_core (net/core/dev.c:5542 (discriminator 4)) 
[ 2538.870005][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5535) 
[ 2538.870340][ C3] ? __pfx_do_raw_spin_trylock (kernel/locking/spinlock_debug.c:122) 
[ 2538.870658][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 2538.870914][ C3] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5983) 
[ 2538.871182][ C3] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5985) 
[ 2538.871440][ C3] __napi_poll.constprop.0 (net/core/dev.c:6584) 
[ 2538.871731][ C3] net_rx_action (net/core/dev.c:6653 net/core/dev.c:6786) 
[ 2538.871986][ C3] ? __pfx_net_rx_action (net/core/dev.c:6750) 
[ 2538.872265][ C3] ? ktime_get (./include/linux/seqlock.h:71 kernel/time/timekeeping.c:846) 
[ 2538.872509][ C3] ? hrtimer_interrupt (kernel/time/hrtimer.c:1806 (discriminator 2)) 
[ 2538.872780][ C3] ? __pfx_rebalance_domains (kernel/sched/fair.c:11695) 
[ 2538.873084][ C3] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 2538.873397][ C3] __do_softirq (kernel/softirq.c:553) 
[ 2538.873649][ C3] irq_exit_rcu (kernel/softirq.c:427 kernel/softirq.c:632 kernel/softirq.c:644) 
[ 2538.873885][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1076 (discriminator 14)) 
[ 2538.874187][    C3]  </IRQ>
[ 2538.874344][    C3]  <TASK>
[ 2538.874508][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:649) 
[ 2538.874833][ C3] RIP: 0010:default_idle (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:72 arch/x86/kernel/process.c:743) 
[ 2538.875107][ C3] Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 23 a2 41 00 fb f4 <fa> c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
All code
========
   0:	4c 01 c7             	add    %r8,%rdi
   3:	4c 29 c2             	sub    %r8,%rdx
   6:	e9 72 ff ff ff       	jmp    0xffffffffffffff7d
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 23 a2 41 00 	verw   0x41a223(%rip)        # 0x41a24b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	fa                   	cli		<-- trapping instruction
  2b:	c3                   	ret
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	cc                   	int3
  30:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  37:	00 00 00 00 
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	fa                   	cli
   1:	c3                   	ret
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   5:	cc                   	int3
   6:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
   d:	00 00 00 00 
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[ 2538.876108][    C3] RSP: 0018:ffffc9000015fdf8 EFLAGS: 00000242
[ 2538.876450][    C3] RAX: 0000000002080aad RBX: 1ffff9200002bfc1 RCX: ffffffff9a246992
[ 2538.876864][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff97c968b6
[ 2538.877276][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006bfeea4
[ 2538.877694][    C3] R10: ffff888035ff7523 R11: ffff888035ffc348 R12: 0000000000000000
[ 2538.878132][    C3] R13: ffff888001d1cc40 R14: dffffc0000000000 R15: 0000000000000000
[ 2538.878559][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:147) 
[ 2538.878863][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:171) 
[ 2538.879142][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:98) 
[ 2538.879404][ C3] cpuidle_idle_call (kernel/sched/idle.c:171) 
[ 2538.879675][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:147) 
[ 2538.879963][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 2538.880255][ C3] do_idle (kernel/sched/idle.c:312) 
[ 2538.880468][ C3] cpu_startup_entry (kernel/sched/idle.c:409 (discriminator 1)) 
[ 2538.880720][ C3] start_secondary (arch/x86/kernel/smpboot.c:224 arch/x86/kernel/smpboot.c:304) 
[ 2538.880989][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:254) 


Finger prints:
dump_stack_lvl:validate_chain:__lock_acquire:_raw_spin_lock_nested