======================================
| [   11.578446][  T187] netconsole: network logging started
| [   11.578595][  T242] ------------[ cut here ]------------
| [   11.578961][  T242] WARNING: kernel/softirq.c:430 at __local_bh_enable_ip+0xc0/0x140, CPU#3: pr/netcon_ext0/242
| [   11.579457][  T242] Modules linked in: netconsole netdevsim
[   11.580225][  T242] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.580509][  T242] RIP: 0010:__local_bh_enable_ip (kernel/softirq.c:430 (discriminator 34))
[   11.580810][  T242] Code: 00 00 00 e8 12 15 0a 00 e8 3d 7c 3c 00 fb 65 8b 05 05 72 40 04 85 c0 74 64 48 83 c4 10 c3 65 8b 05 11 b6 40 04 85 c0 75 a2 90 <0f> 0b 90 eb 9c 89 74 24 0c 4c 89 04 24 e8 ce 7f 3c 00 8b 74 24 0c
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 e8                	add    %ch,%al
   4:	12 15 0a 00 e8 3d    	adc    0x3de8000a(%rip),%dl        # 0x3de80014
   a:	7c 3c                	jl     0x48
   c:	00 fb                	add    %bh,%bl
   e:	65 8b 05 05 72 40 04 	mov    %gs:0x4407205(%rip),%eax        # 0x440721a
  15:	85 c0                	test   %eax,%eax
  17:	74 64                	je     0x7d
  19:	48 83 c4 10          	add    $0x10,%rsp
  1d:	c3                   	ret
  1e:	65 8b 05 11 b6 40 04 	mov    %gs:0x440b611(%rip),%eax        # 0x440b636
  25:	85 c0                	test   %eax,%eax
  27:	75 a2                	jne    0xffffffffffffffcb
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	eb 9c                	jmp    0xffffffffffffffcb
  2f:	89 74 24 0c          	mov    %esi,0xc(%rsp)
  33:	4c 89 04 24          	mov    %r8,(%rsp)
  37:	e8 ce 7f 3c 00       	call   0x3c800a
  3c:	8b 74 24 0c          	mov    0xc(%rsp),%esi

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	eb 9c                	jmp    0xffffffffffffffa1
   5:	89 74 24 0c          	mov    %esi,0xc(%rsp)
   9:	4c 89 04 24          	mov    %r8,(%rsp)
   d:	e8 ce 7f 3c 00       	call   0x3c7fe0
  12:	8b 74 24 0c          	mov    0xc(%rsp),%esi
[   11.581617][  T242] RSP: 0018:ffa00000006b78b8 EFLAGS: 00010046
[   11.581903][  T242] RAX: 0000000000000000 RBX: 0000000025fa67b4 RCX: 1ffffffff26cca80
[   11.582237][  T242] RDX: 0000000000000001 RSI: 0000000000000201 RDI: ffffffff914657ff
[   11.582576][  T242] RBP: ffa00000006b78e8 R08: ffffffff914657ff R09: ffe21c00012607e3
[   11.582949][  T242] R10: ffe21c00012607e4 R11: ff11000009303f14 R12: ffa00000006b7990
[   11.583354][  T242] R13: ff1100000cb51c00 R14: ff1100000ccb2000 R15: ff1100000c48ad00
[   11.583704][  T242] FS:  0000000000000000(0000) GS:ff110000a140b000(0000) knlGS:0000000000000000
[   11.584111][  T242] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.584391][  T242] CR2: 00007fd01d635a48 CR3: 000000002eb3b001 CR4: 0000000000771ef0
[   11.584734][  T242] PKRU: 55555554
[   11.584905][  T242] Call Trace:
[   11.585072][  T242]  <TASK>
[   11.585188][  T242]  ? _raw_spin_unlock_bh (./include/linux/spinlock_api_smp.h:196 (discriminator 1) kernel/locking/spinlock.c:210 (discriminator 1))
[   11.585417][  T242]  mock_phc_gettime64 (drivers/ptp/ptp_mock.c:98)
[   11.585749][  T242] nsim_start_xmit (./include/linux/skbuff.h:1724 ./include/linux/skbuff.h:1787 drivers/net/netdevsim/netdev.c:189) netdevsim
[   11.586043][  T242]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[   11.586276][  T242]  ? nsim_poll (drivers/net/netdevsim/netdev.c:123) netdevsim
[   11.586514][  T242]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   11.586756][  T242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   11.586990][  T242]  ? netif_skb_features (net/core/dev.c:3747 net/core/dev.c:3856)
[   11.587225][  T242]  netpoll_start_xmit (./include/linux/netdevice.h:5285 net/core/netpoll.c:82)
[   11.587461][  T242]  __netpoll_send_skb (net/core/netpoll.c:341)
[   11.587703][  T242]  netpoll_send_skb (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 net/core/netpoll.c:408)
[   11.587941][  T242] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[   11.588242][  T242] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[   11.588546][  T242]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[   11.588789][  T242]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[   11.589028][  T242]  ? nbcon_context_try_acquire (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/printk/nbcon.c:170 kernel/printk/nbcon.c:630)
[   11.589321][  T242]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[   11.589562][  T242]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[   11.589800][  T242]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[   11.590037][  T242]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.590324][  T242]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   11.590567][  T242]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.590850][  T242]  ? __kthread_parkme (./arch/x86/include/asm/bitops.h:202 (discriminator 1) ./arch/x86/include/asm/bitops.h:232 (discriminator 1) ./include/asm-generic/bitops/instrumented-non-atomic.h:142 (discriminator 1) kernel/kthread.c:290 (discriminator 1))
[   11.591090][  T242]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.591371][  T242]  kthread (kernel/kthread.c:467)
[   11.591549][  T242]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[   11.591836][  T242]  ? kthread_affine_node (kernel/kthread.c:412)
[   11.592069][  T242]  ret_from_fork (arch/x86/kernel/process.c:164)
[   11.592303][  T242]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   11.592593][  T242]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[   11.592818][  T242]  ? kthread_affine_node (kernel/kthread.c:412)
[   11.593044][  T242]  ret_from_fork_asm (arch/x86/entry/entry_64.S:255)
| [   11.608723][    C3]  #13: ff1100000b7bba28 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock){+...}-{3:3}, at: __dev_xmit_skb (./include/net/sch_generic.h:202 (discriminator 1) net/core/dev.c:4173 (discriminator 1))
| [   11.609119][    C3]
| [   11.609119][    C3] stack backtrace:
| [   11.609338][    C3] Tainted: [W]=WARN
[   11.609339][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.609342][    C3] Call Trace:
[   11.609344][    C3]  <IRQ>
[   11.609346][    C3]  dump_stack_lvl (lib/dump_stack.c:122)
[   11.609350][    C3]  print_usage_bug.part.0 (kernel/locking/lockdep.c:4045)
[   11.609353][    C3]  ? filter_irq_stacks (kernel/stacktrace.c:114)
[   11.609358][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4268)
[   11.609360][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[   11.609364][    C3]  ? save_trace (kernel/locking/lockdep.c:592)
[   11.609367][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   11.609370][    C3]  mark_lock (kernel/locking/lockdep.c:4753)
[   11.609373][    C3]  mark_usage (kernel/locking/lockdep.c:4642 (discriminator 1))
[   11.609376][    C3]  __lock_acquire (kernel/locking/lockdep.c:5191)
[   11.609378][    C3]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 2) kernel/rcu/tree.c:4032 (discriminator 2))
[   11.609381][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[   11.609386][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   11.609388][    C3]  ? sch_direct_xmit (./include/linux/netdevice.h:4715 (discriminator 2) net/sched/sch_generic.c:345 (discriminator 2))
[   11.609392][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   11.609395][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[   11.609397][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:154)
[   11.609400][    C3]  ? sch_direct_xmit (./include/linux/netdevice.h:4715 (discriminator 2) net/sched/sch_generic.c:345 (discriminator 2))
[   11.609403][    C3]  sch_direct_xmit (./include/linux/netdevice.h:4715 (discriminator 2) net/sched/sch_generic.c:345 (discriminator 2))
[   11.609406][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   11.609408][    C3]  ? dequeue_skb (net/sched/sch_generic.c:322)
[   11.609411][    C3]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 7) kernel/rcu/tree_plugin.h:414 (discriminator 7))
[   11.609414][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[   11.609417][    C3]  __dev_xmit_skb (net/core/dev.c:4186 (discriminator 1))
[   11.609421][    C3]  ? alloc_netdev_dummy (net/core/dev.c:4160)
[   11.609424][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   11.609426][    C3]  ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 ./include/linux/spinlock_api_smp.h:178 kernel/locking/spinlock.c:194)
[   11.609429][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[   11.609432][    C3]  __dev_queue_xmit (net/core/dev.c:4802 (discriminator 1))
[   11.609436][    C3]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 2))
[   11.609441][    C3]  ? netdev_core_pick_tx (net/core/dev.c:4744)
[   11.609445][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[   11.609448][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   11.609450][    C3]  ? arp_xmit (./include/linux/rcupdate.h:312 (discriminator 1) ./include/linux/rcupdate.h:850 (discriminator 1) net/ipv4/arp.c:664 (discriminator 1))
[   11.609453][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   11.609456][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[   11.609459][    C3]  arp_xmit (./include/linux/rcupdate.h:879 net/ipv4/arp.c:669)
[   11.609462][    C3]  arp_solicit (net/ipv4/arp.c:393)
[   11.609465][    C3]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:4411 (discriminator 6))
[   11.609468][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473)
[   11.609471][    C3]  ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 ./include/linux/spinlock_api_smp.h:178 kernel/locking/spinlock.c:194)
[   11.609473][    C3]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[   11.609476][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   11.609478][    C3]  ? arp_rcv (net/ipv4/arp.c:335)
[   11.609482][    C3]  ? neigh_probe (net/core/neighbour.c:1095)
[   11.609486][    C3]  neigh_probe (net/core/neighbour.c:1097)
[   11.609489][    C3]  __neigh_event_send (net/core/neighbour.c:1276)
[   11.609492][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[   11.609495][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[   11.609498][    C3]  neigh_resolve_output (net/core/neighbour.c:1603 (discriminator 1))
[   11.609501][    C3]  ? ___neigh_create (net/core/neighbour.c:726)
[   11.609504][    C3]  ? ___neigh_create (net/core/neighbour.c:726)
[   11.609508][    C3]  ip_finish_output2 (./include/net/neighbour.h:556 (discriminator 2) net/ipv4/ip_output.c:237 (discriminator 2))
[   11.609511][    C3]  ? ip_dst_mtu_maybe_forward (./include/net/ip.h:469)
[   11.609514][    C3]  ? inet_sk_init_flowi4 (./include/net/ip.h:469)
[   11.609522][    C3]  ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:201)
[   11.609525][    C3]  ? __ip_finish_output (./include/net/ip.h:518 net/ipv4/ip_output.c:308)
[   11.609528][    C3]  ip_output (./include/linux/netfilter.h:414 net/ipv4/ip_output.c:438)
[   11.609530][    C3]  ? __ip_local_out (net/ipv4/ip_output.c:98 (discriminator 1) net/ipv4/ip_output.c:109 (discriminator 1))
[   11.609532][    C3]  ip_push_pending_frames (net/ipv4/ip_output.c:1509 net/ipv4/ip_output.c:1528)
[   11.609535][    C3]  __icmp_send (net/ipv4/icmp.c:1002)
[   11.609539][    C3]  ? icmp_echo (net/ipv4/icmp.c:804)
[   11.609540][    C3]  ? dst_init (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 ./include/linux/rcuref.h:26 net/core/dst.c:69)
[   11.609543][    C3]  ? dst_alloc (net/core/dst.c:94)
[   11.609545][    C3]  ? fib_validate_source (net/ipv4/fib_frontend.c:450 (discriminator 1))
[   11.609554][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[   11.609558][    C3]  __udp4_lib_rcv (net/ipv4/udp.c:2767)
[   11.609562][    C3]  ? udp_sk_rx_dst_set (net/ipv4/udp.c:2689)
[   11.609566][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   11.609568][    C3]  ? ip_local_deliver_finish.constprop.0 (./include/linux/rcupdate.h:312 (discriminator 1) ./include/linux/rcupdate.h:850 (discriminator 1) net/ipv4/ip_input.c:240 (discriminator 1))
[   11.609572][    C3]  ip_protocol_deliver_rcu (net/ipv4/ip_input.c:209)
[   11.609575][    C3]  ip_local_deliver_finish.constprop.0 (./include/linux/rcupdate.h:879 net/ipv4/ip_input.c:242)
[   11.609578][    C3]  ? ip_rcv_finish_core (net/ipv4/ip_input.c:370 (discriminator 1))
[   11.609581][    C3]  ? ip_local_deliver (./include/net/net_namespace.h:419 (discriminator 10) ./include/linux/netdevice.h:2741 (discriminator 10) net/ipv4/ip_input.c:255 (discriminator 10))
[   11.609584][    C3]  ip_sublist_rcv_finish (net/ipv4/ip_input.c:582 (discriminator 4))
[   11.609588][    C3]  ip_list_rcv_finish (net/ipv4/ip_input.c:603)
[   11.609592][    C3]  ? ip_rcv_finish_core (net/ipv4/ip_input.c:603)
[   11.609595][    C3]  ? ip_rcv_core (net/ipv4/ip_input.c:540)
[   11.609599][    C3]  ip_list_rcv (net/ipv4/ip_input.c:650)
[   11.609602][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   11.609604][    C3]  ? ip_rcv (net/ipv4/ip_input.c:650)
[   11.609608][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   11.609611][    C3]  __netif_receive_skb_list_core (net/core/dev.c:6215)
[   11.609616][    C3]  ? __netif_receive_skb_core.constprop.0 (net/core/dev.c:6215)
[   11.609619][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   11.609622][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[   11.609625][    C3]  netif_receive_skb_list_internal (net/core/dev.c:6306 net/core/dev.c:6395)
[   11.609629][    C3]  ? process_backlog (net/core/dev.c:6367)
[   11.609636][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[   11.609638][    C3]  ? reacquire_held_locks (kernel/locking/lockdep.c:238 (discriminator 3) kernel/locking/lockdep.c:227 (discriminator 3) kernel/locking/lockdep.c:5386 (discriminator 3))
[   11.609642][    C3]  napi_complete_done (./include/linux/list.h:45 (discriminator 2) ./include/net/gro.h:524 (discriminator 2) ./include/net/gro.h:519 (discriminator 2) ./include/net/gro.h:531 (discriminator 2) net/core/dev.c:6764 (discriminator 2))
[   11.609646][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   11.609649][    C3]  ? netif_receive_skb_list (net/core/dev.c:6733)
[   11.609652][    C3]  ? nsim_start_peer_tx_queue.isra.0 (./include/linux/rcupdate.h:322 (discriminator 1) ./include/linux/rcupdate.h:881 (discriminator 1) drivers/net/netdevsim/netdev.c:67 (discriminator 1)) netdevsim
[   11.609661][    C3] nsim_poll (drivers/net/netdevsim/netdev.c:510 drivers/net/netdevsim/netdev.c:543) netdevsim
[   11.609669][    C3]  ? nsim_start_peer_tx_queue.isra.0 (drivers/net/netdevsim/netdev.c:539) netdevsim
[   11.609674][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[   11.609677][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[   11.609681][    C3]  __napi_poll.constprop.0 (net/core/dev.c:7692)
[   11.609684][    C3]  net_rx_action (net/core/dev.c:7754 net/core/dev.c:7906)
[   11.609689][    C3]  ? run_backlog_napi (net/core/dev.c:7868)
[   11.609693][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[   11.609697][    C3]  ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:95 (discriminator 1) arch/x86/kernel/kvmclock.c:81 (discriminator 1) arch/x86/kernel/kvmclock.c:87 (discriminator 1))
[   11.609701][    C3]  ? ktime_get (kernel/time/timekeeping.c:381 kernel/time/timekeeping.c:404 kernel/time/timekeeping.c:826)
[   11.609705][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[   11.609708][    C3]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[   11.609711][    C3]  ? _local_bh_enable (kernel/softirq.c:580)
[   11.609714][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   11.609717][    C3]  irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
[   11.609719][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1056 (discriminator 47) arch/x86/kernel/apic/apic.c:1056 (discriminator 47))
[   11.609722][    C3]  </IRQ>
[   11.609723][    C3]  <TASK>
[   11.609724][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[   11.609728][    C3] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 kernel/locking/spinlock.c:194)
[   11.609731][    C3] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 31 22 db fd 48 89 df e8 f9 75 db fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 40 9e ce fd 65 8b 05 39 fb 04 02 85 c0 74 12 5b
All code
========
   0:	f5                   	cmc
   1:	53                   	push   %rbx
   2:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
   7:	48 89 fb             	mov    %rdi,%rbx
   a:	48 83 c7 18          	add    $0x18,%rdi
   e:	e8 31 22 db fd       	call   0xfffffffffddb2244
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 f9 75 db fd       	call   0xfffffffffddb7614
  1b:	f7 c5 00 02 00 00    	test   $0x200,%ebp
  21:	75 1f                	jne    0x42
  23:	9c                   	pushf
  24:	58                   	pop    %rax
  25:	f6 c4 02             	test   $0x2,%ah
  28:	75 2f                	jne    0x59
  2a:*	bf 01 00 00 00       	mov    $0x1,%edi		<-- trapping instruction
  2f:	e8 40 9e ce fd       	call   0xfffffffffdce9e74
  34:	65 8b 05 39 fb 04 02 	mov    %gs:0x204fb39(%rip),%eax        # 0x204fb74
  3b:	85 c0                	test   %eax,%eax
  3d:	74 12                	je     0x51
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	bf 01 00 00 00       	mov    $0x1,%edi
   5:	e8 40 9e ce fd       	call   0xfffffffffdce9e4a
   a:	65 8b 05 39 fb 04 02 	mov    %gs:0x204fb39(%rip),%eax        # 0x204fb4a
  11:	85 c0                	test   %eax,%eax
  13:	74 12                	je     0x27
  15:	5b                   	pop    %rbx
[   11.609734][    C3] RSP: 0018:ffa00000006b78e0 EFLAGS: 00000246
[   11.609737][    C3] RAX: 0000000000000086 RBX: ff110000353a65c0 RCX: ffffffff91f45503
[   11.609739][    C3] RDX: ff1100000a1644c0 RSI: ffffffff927d3441 RDI: ffffffff9226c680
[   11.609741][    C3] RBP: 0000000000000246 R08: 0000000000000000 R09: 0000000000000001
[   11.609742][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: ff1100000b363240
[   11.609744][    C3] R13: ff1100000cb51c00 R14: ff1100000ccb2000 R15: ff1100000cb51e28
[   11.609747][    C3]  ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 ./include/linux/spinlock_api_smp.h:178 kernel/locking/spinlock.c:194)
[   11.609751][    C3] nsim_start_xmit (./include/linux/hrtimer.h:245 drivers/net/netdevsim/netdev.c:197) netdevsim
[   11.609757][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[   11.609759][    C3]  ? nsim_poll (drivers/net/netdevsim/netdev.c:123) netdevsim
[   11.609765][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   11.609768][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   11.609770][    C3]  ? netif_skb_features (net/core/dev.c:3747 net/core/dev.c:3856)
[   11.609774][    C3]  netpoll_start_xmit (./include/linux/netdevice.h:5285 net/core/netpoll.c:82)
[   11.609777][    C3]  __netpoll_send_skb (net/core/netpoll.c:341)
[   11.609781][    C3]  netpoll_send_skb (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 net/core/netpoll.c:408)
[   11.609783][    C3] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[   11.609788][    C3] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[   11.609792][    C3]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[   11.609796][    C3]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[   11.609800][    C3]  ? nbcon_context_try_acquire (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/printk/nbcon.c:170 kernel/printk/nbcon.c:630)
[   11.609805][    C3]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[   11.609807][    C3]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[   11.609811][    C3]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[   11.609815][    C3]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.609817][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   11.609821][    C3]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.609824][    C3]  ? __kthread_parkme (./arch/x86/include/asm/bitops.h:202 (discriminator 1) ./arch/x86/include/asm/bitops.h:232 (discriminator 1) ./include/asm-generic/bitops/instrumented-non-atomic.h:142 (discriminator 1) kernel/kthread.c:290 (discriminator 1))
[   11.609827][    C3]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.609830][    C3]  kthread (kernel/kthread.c:467)
[   11.609832][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[   11.609836][    C3]  ? kthread_affine_node (kernel/kthread.c:412)
[   11.609838][    C3]  ret_from_fork (arch/x86/kernel/process.c:164)
[   11.609842][    C3]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   11.609845][    C3]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[   11.609849][    C3]  ? kthread_affine_node (kernel/kthread.c:412)
[   11.609851][    C3]  ret_from_fork_asm (arch/x86/entry/entry_64.S:255)
| [   11.638838][  T242] netpoll_send_skb_on_dev(): eni413np1 enabled interrupts in poll nsim_start_xmit (drivers/net/netdevsim/netdev.c:123) netdevsim
| [   11.639120][  T242] WARNING: net/core/netpoll.c:356 at __netpoll_send_skb+0x710/0x800, CPU#3: pr/netcon_ext0/242
| [   11.639364][  T242] Modules linked in: netconsole netdevsim
| [   11.639780][  T242] Tainted: [W]=WARN
[   11.639876][  T242] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.640028][  T242] RIP: 0010:__netpoll_send_skb (net/core/netpoll.c:356 (discriminator 11))
[   11.640185][  T242] Code: 08 49 8d 7c 24 20 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 d9 00 00 00 48 8d 3d a0 72 ea 01 49 8b 54 24 20 48 8d b3 18 01 00 00 <67> 48 0f b9 3a e9 cc fd ff ff e8 65 3f ca fe e9 56 fb ff ff e8 7b
All code
========
   0:	08 49 8d             	or     %cl,-0x73(%rcx)
   3:	7c 24                	jl     0x29
   5:	20 48 89             	and    %cl,-0x77(%rax)
   8:	fa                   	cli
   9:	48 c1 ea 03          	shr    $0x3,%rdx
   d:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
  11:	0f 85 d9 00 00 00    	jne    0xf0
  17:	48 8d 3d a0 72 ea 01 	lea    0x1ea72a0(%rip),%rdi        # 0x1ea72be
  1e:	49 8b 54 24 20       	mov    0x20(%r12),%rdx
  23:	48 8d b3 18 01 00 00 	lea    0x118(%rbx),%rsi
  2a:*	67 48 0f b9 3a       	ud1    (%edx),%rdi		<-- trapping instruction
  2f:	e9 cc fd ff ff       	jmp    0xfffffffffffffe00
  34:	e8 65 3f ca fe       	call   0xfffffffffeca3f9e
  39:	e9 56 fb ff ff       	jmp    0xfffffffffffffb94
  3e:	e8                   	.byte 0xe8
  3f:	7b                   	.byte 0x7b

Code starting with the faulting instruction
===========================================
   0:	67 48 0f b9 3a       	ud1    (%edx),%rdi
   5:	e9 cc fd ff ff       	jmp    0xfffffffffffffdd6
   a:	e8 65 3f ca fe       	call   0xfffffffffeca3f74
   f:	e9 56 fb ff ff       	jmp    0xfffffffffffffb6a
  14:	e8                   	.byte 0xe8
  15:	7b                   	.byte 0x7b
[   11.640623][  T242] RSP: 0018:ffa00000006b7a40 EFLAGS: 00010246
[   11.640784][  T242] RAX: dffffc0000000000 RBX: ff1100000c48a000 RCX: 0000000000000002
[   11.640967][  T242] RDX: ffffffffc0605f00 RSI: ff1100000c48a118 RDI: ffffffff936b1be0
[   11.641151][  T242] RBP: ff1100000c771a00 R08: ffffffff8fcfcb29 R09: ffe21c0000ae7960
[   11.641337][  T242] R10: ffe21c0000ae7961 R11: 0000000000000001 R12: ffffffffc042ac60
[   11.641531][  T242] R13: 0000000000000003 R14: ff1100000c48a004 R15: ff1100000573ca00
[   11.641716][  T242] FS:  0000000000000000(0000) GS:ff110000a140b000(0000) knlGS:0000000000000000
[   11.641933][  T242] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.642090][  T242] CR2: 00007fd01d635a48 CR3: 000000002eb3b001 CR4: 0000000000771ef0
[   11.642277][  T242] PKRU: 55555554
[   11.642373][  T242] Call Trace:
[   11.642475][  T242]  <TASK>
[   11.642548][  T242]  netpoll_send_skb (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 net/core/netpoll.c:408)
[   11.642672][  T242] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[   11.642826][  T242] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[   11.642980][  T242]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[   11.643105][  T242]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[   11.643229][  T242]  ? nbcon_context_try_acquire (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/printk/nbcon.c:170 kernel/printk/nbcon.c:630)
[   11.643385][  T242]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[   11.643520][  T242]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[   11.643644][  T242]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[   11.643768][  T242]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.643920][  T242]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   11.644046][  T242]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.644202][  T242]  ? __kthread_parkme (./arch/x86/include/asm/bitops.h:202 (discriminator 1) ./arch/x86/include/asm/bitops.h:232 (discriminator 1) ./include/asm-generic/bitops/instrumented-non-atomic.h:142 (discriminator 1) kernel/kthread.c:290 (discriminator 1))
[   11.644327][  T242]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.644487][  T242]  kthread (kernel/kthread.c:467)
[   11.644586][  T242]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[   11.644744][  T242]  ? kthread_affine_node (kernel/kthread.c:412)
[   11.644867][  T242]  ret_from_fork (arch/x86/kernel/process.c:164)
[   11.644992][  T242]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   11.645146][  T242]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[   11.645269][  T242]  ? kthread_affine_node (kernel/kthread.c:412)
[   11.645394][  T242]  ret_from_fork_asm (arch/x86/entry/entry_64.S:255)
| [   11.646877][  T242] raw_local_irq_restore() called with IRQs enabled
| [   11.647030][  T242] WARNING: kernel/locking/irqflag-debug.c:10 at warn_bogus_irq_restore+0xc/0x20, CPU#3: pr/netcon_ext0/242
| [   11.647305][  T242] Modules linked in: netconsole netdevsim
| [   11.647733][  T242] Tainted: [W]=WARN
[   11.647827][  T242] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.647983][  T242] RIP: 0010:warn_bogus_irq_restore (kernel/locking/irqflag-debug.c:10 (discriminator 4))
[   11.648143][  T242] Code: c5 92 48 89 54 24 08 48 89 0c 24 e8 7e 0d d1 fe 48 8b 54 24 08 48 8b 0c 24 e9 25 ff ff ff f3 0f 1e fa 90 48 8d 3d 54 d2 75 01 <67> 48 0f b9 3a 90 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f
All code
========
   0:	c5 92 48             	(bad)
   3:	89 54 24 08          	mov    %edx,0x8(%rsp)
   7:	48 89 0c 24          	mov    %rcx,(%rsp)
   b:	e8 7e 0d d1 fe       	call   0xfffffffffed10d8e
  10:	48 8b 54 24 08       	mov    0x8(%rsp),%rdx
  15:	48 8b 0c 24          	mov    (%rsp),%rcx
  19:	e9 25 ff ff ff       	jmp    0xffffffffffffff43
  1e:	f3 0f 1e fa          	endbr64
  22:	90                   	nop
  23:	48 8d 3d 54 d2 75 01 	lea    0x175d254(%rip),%rdi        # 0x175d27e
  2a:*	67 48 0f b9 3a       	ud1    (%edx),%rdi		<-- trapping instruction
  2f:	90                   	nop
  30:	c3                   	ret
  31:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  38:	00 00 00 
  3b:	0f 1f 00             	nopl   (%rax)
  3e:	f3                   	repz
  3f:	0f                   	.byte 0xf

Code starting with the faulting instruction
===========================================
   0:	67 48 0f b9 3a       	ud1    (%edx),%rdi
   5:	90                   	nop
   6:	c3                   	ret
   7:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   e:	00 00 00 
  11:	0f 1f 00             	nopl   (%rax)
  14:	f3                   	repz
  15:	0f                   	.byte 0xf
[   11.648594][  T242] RSP: 0018:ffa00000006b7a98 EFLAGS: 00010202
[   11.648751][  T242] RAX: 0000000000000000 RBX: ff11000002589130 RCX: 0000000000000000
[   11.648937][  T242] RDX: 0000000000000282 RSI: ffffffff9226c600 RDI: ffffffff9367ae60
[   11.649125][  T242] RBP: 0000000000000041 R08: ffffffff8fcfcb29 R09: ffe21c0000ae7960
[   11.649310][  T242] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000000003a7
[   11.649505][  T242] R13: ffa00000006b7da0 R14: ff11000002589000 R15: ff11000002589650
[   11.649698][  T242] FS:  0000000000000000(0000) GS:ff110000a140b000(0000) knlGS:0000000000000000
[   11.649915][  T242] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.650070][  T242] CR2: 00007fd01d635a48 CR3: 000000002eb3b001 CR4: 0000000000771ef0
[   11.650256][  T242] PKRU: 55555554
[   11.650348][  T242] Call Trace:
[   11.650448][  T242]  <TASK>
[   11.650509][  T242]  netpoll_send_skb (net/core/netpoll.c:408 (discriminator 12))
[   11.650637][  T242] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[   11.650790][  T242] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[   11.650942][  T242]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[   11.651065][  T242]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[   11.651191][  T242]  ? nbcon_context_try_acquire (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/printk/nbcon.c:170 kernel/printk/nbcon.c:630)
[   11.651346][  T242]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[   11.651476][  T242]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[   11.651605][  T242]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[   11.651728][  T242]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.651879][  T242]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   11.652007][  T242]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.652159][  T242]  ? __kthread_parkme (./arch/x86/include/asm/bitops.h:202 (discriminator 1) ./arch/x86/include/asm/bitops.h:232 (discriminator 1) ./include/asm-generic/bitops/instrumented-non-atomic.h:142 (discriminator 1) kernel/kthread.c:290 (discriminator 1))
[   11.652281][  T242]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.652436][  T242]  kthread (kernel/kthread.c:467)
[   11.652533][  T242]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[   11.652686][  T242]  ? kthread_affine_node (kernel/kthread.c:412)
[   11.652808][  T242]  ret_from_fork (arch/x86/kernel/process.c:164)
[   11.652936][  T242]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   11.653090][  T242]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[   11.653212][  T242]  ? kthread_affine_node (kernel/kthread.c:412)


Finger prints:
__netpoll_send_skb:netpoll_send_skb:send_ext_msg_udp:netconsole_write:nbcon_emit_next_record
warn_bogus_irq_restore:netpoll_send_skb:send_ext_msg_udp:netconsole_write:nbcon_emit_next_record
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__local_bh_enable_ip:mock_phc_gettime64:nsim_start_xmit:netpoll_start_xmit:__netpoll_send_skb