======================================
| [  882.395303] #6: ffffffff93d678c0 (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) 
| [  882.395950] #7: ffffffff93d678c0 (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) 
| [  882.396669]
| [  882.396669] stack backtrace:
[  882.397500] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  882.398367] Call Trace:
[  882.398570]  <IRQ>
[  882.398743] dump_stack_lvl (lib/dump_stack.c:108) 
[  882.399035] __lock_acquire (kernel/locking/lockdep.c:5138) 
[  882.399347] ? sk_filter_trim_cap (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/filter.c:151) 
[  882.399685] lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719) 
[  882.399964] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  882.400253] ? sk_filter_trim_cap (net/core/filter.c:165) 
[  882.400610] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) 
[  882.400942] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  882.401235] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  882.401511] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[  882.401887] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[  882.402249] __netif_receive_skb_one_core (net/core/dev.c:5509 (discriminator 4)) 
[  882.402631] netif_receive_skb (net/core/dev.c:5709 net/core/dev.c:5768) 
[  882.402936] tcf_mirred_to_dev (net/sched/act_mirred.c:327) act_mirred
[  882.403338] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred
[  882.403732] ? tcf_skbedit_act (net/sched/act_skbedit.c:51 (discriminator 3)) act_skbedit
[  882.404130] tcf_action_exec (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100 net/sched/act_api.c:1074) 
[  882.404354]  fl_classify+0x20e
DETECTED CRASH, lowering timeout
/0x260 [cls_flower]
[  882.404614] ? __bfs (kernel/locking/lockdep.c:1787) 
[  882.404796] ? check_irq_usage (kernel/locking/lockdep.c:2823) 
[  882.405011] ? __skb_flow_dissect (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/flow_dissector.c:1101) 
[  882.405254] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) 
[  882.405528] ? check_noncircular (kernel/locking/lockdep.c:2172) 
[  882.405750] ? __skb_flow_dissect (./include/net/flow_dissector.h:443 net/core/flow_dissector.c:1140) 
[  882.405980] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1)) 
[  882.406215] ? skb_flow_dissect_ct (net/core/flow_dissector.c:344) 
[  882.406459] tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734 net/sched/cls_api.c:1830) 
[  882.406653] tc_run (net/core/dev.c:3912) 
[  882.406825] __dev_queue_xmit (net/core/dev.c:4036 net/core/dev.c:4268) 
[  882.407054] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[  882.407265] ? eth_header (net/ethernet/eth.c:85) 
[  882.407464] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) 
[  882.407693] ? ip_skb_dst_mtu (./include/net/net_namespace.h:383 ./include/linux/netdevice.h:2655 ./include/net/ip.h:465 ./include/net/ip.h:502) 
[  882.407898] ? __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[  882.408120] __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[  882.408361] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) 
[  882.408578] ? __alloc_skb (net/core/skbuff.c:667) 
[  882.408775] tcp_rcv_state_process (net/ipv4/tcp_input.c:6874) 
[  882.409029] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[  882.409224] ? tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[  882.409434] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[  882.409632] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) 
[  882.409855] ? process_backlog (net/core/dev.c:5945 (discriminator 2)) 
[  882.410069] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[  882.410302] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[  882.410542] __netif_receive_skb_one_core (net/core/dev.c:5509 (discriminator 4)) 
[  882.410816] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5952) 
[  882.411020] __napi_poll.constprop.0 (net/core/dev.c:6551) 
[  882.411261] net_rx_action (net/core/dev.c:6622 net/core/dev.c:6753) 
[  882.411476] __do_softirq (kernel/softirq.c:553) 
[  882.411668] ? tcp_recvmsg (net/ipv4/tcp.c:2580) 
[  882.411864] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) 
[  882.412055]  </IRQ>
[  882.412179]  <TASK>
[  882.412331] __local_bh_enable_ip (kernel/softirq.c:381) 
[  882.412562] tcp_recvmsg (net/ipv4/tcp.c:2580) 
[  882.412751] inet_recvmsg (net/ipv4/af_inet.c:884 (discriminator 8)) 
[  882.412941] __sys_recvfrom (net/socket.c:1046 net/socket.c:1068 net/socket.c:2242) 
[  882.413160] ? do_pselect.constprop.0 (fs/select.c:764) 
[  882.413417] ? task_mm_cid_work (./include/linux/find.h:64 kernel/sched/core.c:11943) 
[  882.413638] ? restore_fpregs_from_fpstate (arch/x86/kernel/fpu/xstate.h:202 arch/x86/kernel/fpu/core.c:181) 
[  882.413896] __x64_sys_recvfrom (net/socket.c:2260 net/socket.c:2256 net/socket.c:2256) 
[  882.414117] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[  882.414317] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[  882.414578] RIP: 0033:0x7f9922f494c0
[ 882.414788] Code: 84 00 00 00 00 00 0f 1f 40 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 1d 45 31 c9 45 31 c0 b8 2d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 68 c3 0f 1f 80 00 00 00 00 41 54 48 83 ec 20
All code
========
   0:	84 00                	test   %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	0f 1f 40 00          	nopl   0x0(%rax)
   a:	f3 0f 1e fa          	endbr64
   e:	41 89 ca             	mov    %ecx,%r10d
  11:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  18:	00 
  19:	85 c0                	test   %eax,%eax
  1b:	75 1d                	jne    0x3a
  1d:	45 31 c9             	xor    %r9d,%r9d
  20:	45 31 c0             	xor    %r8d,%r8d
  23:	b8 2d 00 00 00       	mov    $0x2d,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 68                	ja     0x9a
  32:	c3                   	ret
  33:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  3a:	41 54                	push   %r12
  3c:	48 83 ec 20          	sub    $0x20,%rsp

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 68                	ja     0x70
   8:	c3                   	ret
   9:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  10:	41 54                	push   %r12
  12:	48 83 ec 20          	sub    $0x20,%rsp
[  882.415718] RSP: 002b:00007fff855e9048 EFLAGS: 00000246 ORIG_RAX: 000000000000002d
[  882.416107] RAX: ffffffffffffffda RBX: 000055972de01a20 RCX: 00007f9922f494c0
[  882.416483] RDX: 0000000000002000 RSI: 00007fff855e90d0 RDI: 0000000000000008
[  882.416883] RBP: 00007fff855e90d0 R08: 0000000000000000 R09: 0000000000000000
[  882.417410] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008


Finger prints:
dump_stack_lvl:__lock_acquire:lock_acquire:_raw_spin_lock_nested