======================================
| [ 1151.373012] #6: ffffffff9cd678c0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:5738 net/core/dev.c:5810) 
| [ 1151.373491] #7: ffffffff9cd678c0 (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) 
| [ 1151.373989]
| [ 1151.373989] stack backtrace:
[ 1151.374650] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1151.375249] Call Trace:
[ 1151.375408]  <TASK>
[ 1151.375557] dump_stack_lvl (lib/dump_stack.c:108) 
[ 1151.375783] __lock_acquire (kernel/locking/lockdep.c:5138) 
[ 1151.376004] ? sk_filter_trim_cap (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/filter.c:151) 
[ 1151.376259] lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756 kernel/locking/lockdep.c:5719) 
[ 1151.376456] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1151.376680] ? sk_filter_trim_cap (net/core/filter.c:165) 
[ 1151.376930] _raw_spin_lock_nested (kernel/locking/spinlock.c:379) 
[ 1151.377187] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1151.377388] tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1151.377579] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[ 1151.377845] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 1151.378091] __netif_receive_skb_one_core (net/core/dev.c:5551 (discriminator 4)) 
[ 1151.378349] netif_receive_skb (net/core/dev.c:5751 net/core/dev.c:5810) 
[ 1151.378590] tcf_mirred_to_dev (net/sched/act_mirred.c:327) act_mirred
[ 1151.378891] tcf_mirred_act (net/sched/act_mirred.c:459 (discriminator 2)) act_mirred
[ 1151.379155] ? tcf_skbedit_act (net/sched/act_skbedit.c:51 (discriminator 3)) act_skbedit
[ 1151.379464] tcf_action_exec (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100 net/sched/act_api.c:1074) 
[ 1151.379680
DETECTED CRASH, lowering timeout
] fl_classify (net/sched/cls_flower.c:345) cls_flower
[ 1151.379956] ? fl_mask_lookup (net/sched/cls_flower.c:296) cls_flower
[ 1151.380231] ? __bfs (kernel/locking/lockdep.c:1787) 
[ 1151.380402] ? check_irq_usage (kernel/locking/lockdep.c:2823) 
[ 1151.380643] ? lock_is_held_type (kernel/locking/lockdep.c:5495 kernel/locking/lockdep.c:5825) 
[ 1151.380895] ? check_path.constprop.0 (kernel/locking/lockdep.c:2145) 
[ 1151.381139] ? check_noncircular (kernel/locking/lockdep.c:2172) 
[ 1151.381360] ? __lock_acquire (kernel/locking/lockdep.c:5133 (discriminator 1)) 
[ 1151.381605] tcf_classify (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1734 net/sched/cls_api.c:1830) 
[ 1151.381807] tc_run (net/core/dev.c:3920) 
[ 1151.381997] __dev_queue_xmit (net/core/dev.c:4044 net/core/dev.c:4276) 
[ 1151.382224] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 1151.382433] ip_finish_output2 (./include/linux/netdevice.h:3172 ./include/net/neighbour.h:526 ./include/net/neighbour.h:540 net/ipv4/ip_output.c:235) 
[ 1151.382679] ? __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[ 1151.382905] __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[ 1151.383142] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) 
[ 1151.383369] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 1151.383579] tcp_write_xmit (net/ipv4/tcp_output.c:2792) 
[ 1151.383814] __tcp_push_pending_frames (net/ipv4/tcp_output.c:2977) 
[ 1151.384073] tcp_rcv_state_process (net/ipv4/tcp_input.c:5654 net/ipv4/tcp_input.c:6867) 
[ 1151.384343] ? tcp_v4_rcv (./include/linux/skbuff.h:1619 ./include/net/tcp.h:2510 net/ipv4/tcp_ipv4.c:2326) 
[ 1151.384546] ? tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[ 1151.384751] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929) 
[ 1151.384979] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2329) 
[ 1151.385174] ? process_backlog (net/core/dev.c:5987 (discriminator 2)) 
[ 1151.385385] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[ 1151.385656] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 1151.385896] __netif_receive_skb_one_core (net/core/dev.c:5551 (discriminator 4)) 
[ 1151.386182] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:5994) 
[ 1151.386393] __napi_poll.constprop.0 (net/core/dev.c:6622) 
[ 1151.386633] net_rx_action (net/core/dev.c:6693 net/core/dev.c:6824) 
[ 1151.386863] __do_softirq (kernel/softirq.c:553) 
[ 1151.387061] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 1151.387331] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913) 
[ 1151.387530] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 1151.387772] kthread (kernel/kthread.c:388) 
[ 1151.387953] ? __pfx_kthread (kernel/kthread.c:341) 
[ 1151.388181] ret_from_fork (arch/x86/kernel/process.c:147) 
[ 1151.388386] ? __pfx_kthread (kernel/kthread.c:341) 
[ 1151.388613] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) 
| [ 1151.388613] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) 
| [ 1151.388832]  </TASK>
| [ 1187.819870] ncat (5629) used greatest stack depth: 10680 bytes left
| [ 1200.883944] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1200.884879] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1200.885658] Call Trace:
[ 1200.885840]  <IRQ>
[ 1200.885995] dump_stack_lvl (lib/dump_stack.c:108) 
[ 1200.886266] __report_bad_irq (kernel/irq/spurious.c:214) 
[ 1200.886521] note_interrupt (kernel/irq/spurious.c:423) 
[ 1200.886789] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) 
[ 1200.887064] handle_edge_irq (kernel/irq/chip.c:833) 
[ 1200.887333] __common_interrupt (./include/linux/irqdesc.h:161 arch/x86/kernel/irq.c:238 arch/x86/kernel/irq.c:257) 
[ 1200.887622] common_interrupt (arch/x86/kernel/irq.c:247 (discriminator 14)) 
[ 1200.887902]  </IRQ>
[ 1200.888058]  <TASK>
[ 1200.888208] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:640) 
[ 1200.888500] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1200.888895] Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 81 ac 38 ff 48 89 ef e8 39 dd 38 ff 80 e7 02 74 06 e8 cf 05 46 ff fb 65 ff 0d cf 58 ff 63 <74> 07 5b 5d c3 cc cc cc cc 0f 1f 44 00 00 5b 5d c3 cc cc cc cc 66
All code
========
   0:	c7                   	(bad)
   1:	18 53 48             	sbb    %dl,0x48(%rbx)
   4:	89 f3                	mov    %esi,%ebx
   6:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
   b:	e8 81 ac 38 ff       	call   0xffffffffff38ac91
  10:	48 89 ef             	mov    %rbp,%rdi
  13:	e8 39 dd 38 ff       	call   0xffffffffff38dd51
  18:	80 e7 02             	and    $0x2,%bh
  1b:	74 06                	je     0x23
  1d:	e8 cf 05 46 ff       	call   0xffffffffff4605f1
  22:	fb                   	sti
  23:	65 ff 0d cf 58 ff 63 	decl   %gs:0x63ff58cf(%rip)        # 0x63ff58f9
  2a:*	74 07                	je     0x33		<-- trapping instruction
  2c:	5b                   	pop    %rbx
  2d:	5d                   	pop    %rbp
  2e:	c3                   	ret
  2f:	cc                   	int3
  30:	cc                   	int3
  31:	cc                   	int3
  32:	cc                   	int3
  33:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  38:	5b                   	pop    %rbx
  39:	5d                   	pop    %rbp
  3a:	c3                   	ret
  3b:	cc                   	int3
  3c:	cc                   	int3
  3d:	cc                   	int3
  3e:	cc                   	int3
  3f:	66                   	data16

Code starting with the faulting instruction
===========================================
   0:	74 07                	je     0x9
   2:	5b                   	pop    %rbx
   3:	5d                   	pop    %rbp
   4:	c3                   	ret
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	cc                   	int3
   9:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   e:	5b                   	pop    %rbx
   f:	5d                   	pop    %rbp
  10:	c3                   	ret
  11:	cc                   	int3
  12:	cc                   	int3
  13:	cc                   	int3
  14:	cc                   	int3
  15:	66                   	data16
[ 1200.890151] RSP: 0018:ffffbb42c2667d18 EFLAGS: 00000286
[ 1200.890517] RAX: 0000000000000001 RBX: 0000000000000282 RCX: 0000000000000017
[ 1200.890978] RDX: ffffffff9bbc7832 RSI: ffffffff9c039671 RDI: ffffffff9c039671
[ 1200.891462] RBP: ffffffff9e202f20 R08: 0000000000000000 R09: 0000000000000000
[ 1200.891936] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[ 1200.892410] R13: 0000000000000000 R14: ffffa006c2608c01 R15: ffffa006c1f30000
[ 1200.892897] ? rpm_suspend (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/rpm.h:84 drivers/base/power/runtime.c:717) 
[ 1200.893157] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 ./arch/x86/include/asm/irqflags.h:135 ./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1200.893509] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 ./arch/x86/include/asm/irqflags.h:135 ./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1200.893794] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 ./arch/x86/include/asm/irqflags.h:135 ./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1200.894121] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:616) 
[ 1200.894384] n_tty_write (drivers/tty/n_tty.c:574 drivers/tty/n_tty.c:2379) 
[ 1200.894624] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) 
[ 1200.894964] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1021 drivers/tty/tty_io.c:1096) 
[ 1200.895250] vfs_write (./include/linux/fs.h:2085 fs/read_write.c:497 fs/read_write.c:590) 
[ 1200.895437] ksys_write (fs/read_write.c:643) 
[ 1200.895632] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 1200.895828] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[ 1200.896110] RIP: 0033:0x7f7639b42957
[ 1200.896303] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[ 1200.897251] RSP: 002b:00007ffef63651d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1200.897641] RAX: ffffffffffffffda RBX: 000055635a524ec0 RCX: 00007f7639b42957
[ 1200.898009] RDX: 0000000000000001 RSI: 000055635a524ec0 RDI: 0000000000000001
[ 1200.898376] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1200.898745] R10: 0000000000000001 R11: 0000000000000246 R12: 000055635a511500


Finger prints:
dump_stack_lvl:__lock_acquire:lock_acquire:_raw_spin_lock_nested
ret_from_fork_asm:dump_stack_lvl:__report_bad_irq:note_interrupt