======================================
| 0
| xx__-> [   14.131169][  T246] ------------[ cut here ]------------
| [   14.131431][  T246] WARNING: kernel/softirq.c:430 at __local_bh_enable_ip+0xc0/0x140, CPU#3: pr/netcon_ext0/246
| [   14.131730][  T246] Modules linked in: netconsole netdevsim
[   14.132176][  T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.132368][  T246] RIP: 0010:__local_bh_enable_ip (kernel/softirq.c:430 (discriminator 34))
[   14.132560][  T246] 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
[   14.133083][  T246] RSP: 0018:ffa00000005978b8 EFLAGS: 00010046
[   14.133267][  T246] RAX: 0000000000000000 RBX: 000000003d488375 RCX: 1ffffffff0fcca80
[   14.133479][  T246] RDX: 0000000000000001 RSI: 0000000000000201 RDI: ffffffff85c657ff
[   14.133695][  T246] RBP: ffa00000005978e8 R08: ffffffff85c657ff R09: ffe21c00019acde3
[   14.133921][  T246] R10: ffe21c00019acde4 R11: ff1100000cd66f14 R12: ffa0000000597990
[   14.134133][  T246] R13: ff1100000c1f7000 R14: ff1100000c6ea000 R15: ff1100000ae5ad00
[   14.134350][  T246] FS:  0000000000000000(0000) GS:ff110000acc0b000(0000) knlGS:0000000000000000
[   14.134598][  T246] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.134775][  T246] CR2: 00007f16157eaa48 CR3: 000000002153b003 CR4: 0000000000771ef0
[   14.135001][  T246] PKRU: 55555554
[   14.135107][  T246] Call Trace:
[   14.135217][  T246]  <TASK>
[   14.135288][  T246]  ? _raw_spin_unlock_bh (./include/linux/spinlock_api_smp.h:196 (discriminator 1) kernel/locking/spinlock.c:210 (discriminator 1))
[   14.135493][  T246]  mock_phc_gettime64 (drivers/ptp/ptp_mock.c:98)
[   14.135808][  T246] nsim_start_xmit (./include/linux/skbuff.h:1724 ./include/linux/skbuff.h:1787 drivers/net/netdevsim/netdev.c:189) netdevsim
[   14.136097][  T246]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[   14.136323][  T246]  ? nsim_poll (drivers/net/netdevsim/netdev.c:123) netdevsim
[   14.136554][  T246]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   14.136784][  T246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   14.137010][  T246]  ? netif_skb_features (net/core/dev.c:3747 net/core/dev.c:3856)
[   14.137245][  T246]  netpoll_start_xmit (./include/linux/netdevice.h:5285 net/core/netpoll.c:82)
[   14.137471][  T246]  __netpoll_send_skb (net/core/netpoll.c:341)
[   14.137707][  T246]  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)
[   14.137934][  T246] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[   14.138149][  T246] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[   14.138339][  T246]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[   14.138479][  T246]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[   14.138628][  T246]  ? 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)
[   14.138806][  T246]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[   14.138946][  T246]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[   14.139087][  T246]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[   14.139234][  T246]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   14.139439][  T246]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   14.139585][  T246]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   14.139755][  T246]  ? __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))
[   14.139894][  T246]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   14.140064][  T246]  kthread (kernel/kthread.c:467)
[   14.140172][  T246]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[   14.140359][  T246]  ? kthread_affine_node (kernel/kthread.c:412)
[   14.140501][  T246]  ret_from_fork (arch/x86/kernel/process.c:164)
[   14.140641][  T246]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.140817][  T246]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[   14.140958][  T246]  ? kthread_affine_node (kernel/kthread.c:412)
[   14.141100][  T246]  ret_from_fork_asm (arch/x86/entry/entry_64.S:255)
| [   14.152116][    C3]  #13: ff1100000ceaba28 (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))
| [   14.152446][    C3]
| [   14.152446][    C3] stack backtrace:
| [   14.152594][    C3] Tainted: [W]=WARN
[   14.152595][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.152596][    C3] Call Trace:
[   14.152597][    C3]  <IRQ>
[   14.152599][    C3]  dump_stack_lvl (lib/dump_stack.c:122)
[   14.152602][    C3]  print_usage_bug.part.0 (kernel/locking/lockdep.c:4045)
[   14.152603][    C3]  ? filter_irq_stacks (kernel/stacktrace.c:114)
[   14.152607][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4268)
[   14.152609][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[   14.152612][    C3]  ? save_trace (kernel/locking/lockdep.c:592)
[   14.152614][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   14.152616][    C3]  mark_lock (kernel/locking/lockdep.c:4753)
[   14.152617][    C3]  mark_usage (kernel/locking/lockdep.c:4642 (discriminator 1))
[   14.152619][    C3]  __lock_acquire (kernel/locking/lockdep.c:5191)
[   14.152620][    C3]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 2) kernel/rcu/tree.c:4032 (discriminator 2))
[   14.152623][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[   14.152626][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   14.152627][    C3]  ? sch_direct_xmit (./include/linux/netdevice.h:4715 (discriminator 2) net/sched/sch_generic.c:345 (discriminator 2))
[   14.152630][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   14.152632][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[   14.152634][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:154)
[   14.152636][    C3]  ? sch_direct_xmit (./include/linux/netdevice.h:4715 (discriminator 2) net/sched/sch_generic.c:345 (discriminator 2))
[   14.152638][    C3]  sch_direct_xmit (./include/linux/netdevice.h:4715 (discriminator 2) net/sched/sch_generic.c:345 (discriminator 2))
[   14.152640][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   14.152642][    C3]  ? dequeue_skb (net/sched/sch_generic.c:322)
[   14.152644][    C3]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 7) kernel/rcu/tree_plugin.h:414 (discriminator 7))
[   14.152645][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[   14.152647][    C3]  __dev_xmit_skb (net/core/dev.c:4186 (discriminator 1))
[   14.152650][    C3]  ? alloc_netdev_dummy (net/core/dev.c:4160)
[   14.152652][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   14.152653][    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)
[   14.152655][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[   14.152657][    C3]  __dev_queue_xmit (net/core/dev.c:4802 (discriminator 1))
[   14.152659][    C3]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 2))
[   14.152663][    C3]  ? netdev_core_pick_tx (net/core/dev.c:4744)
[   14.152665][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[   14.152667][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   14.152668][    C3]  ? arp_xmit (./include/linux/rcupdate.h:312 (discriminator 1) ./include/linux/rcupdate.h:850 (discriminator 1) net/ipv4/arp.c:664 (discriminator 1))
[   14.152671][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   14.152672][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[   14.152674][    C3]  arp_xmit (./include/linux/rcupdate.h:879 net/ipv4/arp.c:669)
[   14.152676][    C3]  arp_solicit (net/ipv4/arp.c:393)
[   14.152678][    C3]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:4411 (discriminator 6))
[   14.152680][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473)
[   14.152682][    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)
[   14.152684][    C3]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[   14.152685][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   14.152687][    C3]  ? arp_rcv (net/ipv4/arp.c:335)
[   14.152690][    C3]  ? neigh_probe (net/core/neighbour.c:1095)
[   14.152692][    C3]  neigh_probe (net/core/neighbour.c:1097)
[   14.152694][    C3]  __neigh_event_send (net/core/neighbour.c:1276)
[   14.152697][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[   14.152698][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[   14.152700][    C3]  neigh_resolve_output (net/core/neighbour.c:1603 (discriminator 1))
[   14.152702][    C3]  ? ___neigh_create (net/core/neighbour.c:726)
[   14.152704][    C3]  ? ___neigh_create (net/core/neighbour.c:726)
[   14.152707][    C3]  ip_finish_output2 (./include/net/neighbour.h:556 (discriminator 2) net/ipv4/ip_output.c:237 (discriminator 2))
[   14.152709][    C3]  ? ip_dst_mtu_maybe_forward (./include/net/ip.h:469)
[   14.152711][    C3]  ? inet_sk_init_flowi4 (./include/net/ip.h:469)
[   14.152714][    C3]  ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:201)
[   14.152715][    C3]  ? __ip_finish_output (./include/net/ip.h:518 net/ipv4/ip_output.c:308)
[   14.152717][    C3]  ip_output (./include/linux/netfilter.h:414 net/ipv4/ip_output.c:438)
[   14.152718][    C3]  ? __ip_local_out (net/ipv4/ip_output.c:98 (discriminator 1) net/ipv4/ip_output.c:109 (discriminator 1))
[   14.152720][    C3]  ip_push_pending_frames (net/ipv4/ip_output.c:1509 net/ipv4/ip_output.c:1528)
[   14.152722][    C3]  __icmp_send (net/ipv4/icmp.c:1002)
[   14.152724][    C3]  ? icmp_echo (net/ipv4/icmp.c:804)
[   14.152725][    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)
[   14.152727][    C3]  ? flush_tlb_one_user (arch/x86/mm/tlb.c:1658)
[   14.152730][    C3]  ? dst_alloc (net/core/dst.c:94)
[   14.152732][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   14.152736][    C3]  ? inet_steal_sock.constprop.0 (./include/net/request_sock.h:122 ./include/net/inet_hashtables.h:441)
[   14.152739][    C3]  __udp4_lib_rcv (net/ipv4/udp.c:2767)
[   14.152742][    C3]  ? udp_sk_rx_dst_set (net/ipv4/udp.c:2689)
[   14.152744][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   14.152746][    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))
[   14.152748][    C3]  ip_protocol_deliver_rcu (net/ipv4/ip_input.c:209)
[   14.152751][    C3]  ip_local_deliver_finish.constprop.0 (./include/linux/rcupdate.h:879 net/ipv4/ip_input.c:242)
[   14.152753][    C3]  ? ip_rcv_finish_core (net/ipv4/ip_input.c:370 (discriminator 1))
[   14.152755][    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))
[   14.152757][    C3]  ip_sublist_rcv_finish (net/ipv4/ip_input.c:582 (discriminator 4))
[   14.152759][    C3]  ip_list_rcv_finish (net/ipv4/ip_input.c:603)
[   14.152762][    C3]  ? ip_rcv_finish_core (net/ipv4/ip_input.c:603)
[   14.152764][    C3]  ? ip_rcv_core (net/ipv4/ip_input.c:540)
[   14.152766][    C3]  ? update_sd_lb_stats.constprop.0 (kernel/sched/fair.c:11093 (discriminator 2))
[   14.152769][    C3]  ip_list_rcv (net/ipv4/ip_input.c:650)
[   14.152772][    C3]  ? ip_rcv (net/ipv4/ip_input.c:650)
[   14.152775][    C3]  __netif_receive_skb_list_core (net/core/dev.c:6215)
[   14.152778][    C3]  ? __netif_receive_skb_core.constprop.0 (net/core/dev.c:6215)
[   14.152780][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   14.152782][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[   14.152783][    C3]  netif_receive_skb_list_internal (net/core/dev.c:6306 net/core/dev.c:6395)
[   14.152786][    C3]  ? process_backlog (net/core/dev.c:6367)
[   14.152789][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[   14.152790][    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))
[   14.152792][    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))
[   14.152794][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   14.152796][    C3]  ? netif_receive_skb_list (net/core/dev.c:6733)
[   14.152798][    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
[   14.152802][    C3] nsim_poll (drivers/net/netdevsim/netdev.c:510 drivers/net/netdevsim/netdev.c:543) netdevsim
[   14.152806][    C3]  ? nsim_start_peer_tx_queue.isra.0 (drivers/net/netdevsim/netdev.c:539) netdevsim
[   14.152809][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[   14.152811][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[   14.152813][    C3]  __napi_poll.constprop.0 (net/core/dev.c:7692)
[   14.152815][    C3]  net_rx_action (net/core/dev.c:7754 net/core/dev.c:7906)
[   14.152819][    C3]  ? run_backlog_napi (net/core/dev.c:7868)
[   14.152821][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[   14.152824][    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))
[   14.152827][    C3]  ? ktime_get (kernel/time/timekeeping.c:381 kernel/time/timekeeping.c:404 kernel/time/timekeeping.c:826)
[   14.152830][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[   14.152832][    C3]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[   14.152834][    C3]  ? _local_bh_enable (kernel/softirq.c:580)
[   14.152836][    C3]  irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
[   14.152837][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1056 (discriminator 47) arch/x86/kernel/apic/apic.c:1056 (discriminator 47))
[   14.152839][    C3]  </IRQ>
[   14.152840][    C3]  <TASK>
[   14.152841][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[   14.152844][    C3] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 kernel/locking/spinlock.c:194)
[   14.152846][    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
[   14.152848][    C3] RSP: 0018:ffa00000005978e0 EFLAGS: 00000246
[   14.152850][    C3] RAX: 0000000000000086 RBX: ff110000353a65c0 RCX: ffffffff86745503
[   14.152851][    C3] RDX: ff11000009368040 RSI: ffffffff86fd3441 RDI: ffffffff86a6c680
[   14.152852][    C3] RBP: 0000000000000246 R08: 0000000000000000 R09: 0000000000000001
[   14.152853][    C3] R10: 0000000000000003 R11: 1fe2200006a77023 R12: ff1100000c20a040
[   14.152854][    C3] R13: ff1100000c1f7000 R14: ff1100000c6ea000 R15: ff1100000c1f7228
[   14.152856][    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)
[   14.152858][    C3] nsim_start_xmit (./include/linux/hrtimer.h:245 drivers/net/netdevsim/netdev.c:197) netdevsim
[   14.152861][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[   14.152863][    C3]  ? nsim_poll (drivers/net/netdevsim/netdev.c:123) netdevsim
[   14.152866][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   14.152868][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   14.152869][    C3]  ? netif_skb_features (net/core/dev.c:3747 net/core/dev.c:3856)
[   14.152872][    C3]  netpoll_start_xmit (./include/linux/netdevice.h:5285 net/core/netpoll.c:82)
[   14.152873][    C3]  __netpoll_send_skb (net/core/netpoll.c:341)
[   14.152876][    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)
[   14.152877][    C3] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[   14.152880][    C3] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[   14.152882][    C3]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[   14.152885][    C3]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[   14.152887][    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)
[   14.152891][    C3]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[   14.152892][    C3]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[   14.152895][    C3]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[   14.152897][    C3]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   14.152899][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   14.152901][    C3]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   14.152903][    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))
[   14.152905][    C3]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   14.152907][    C3]  kthread (kernel/kthread.c:467)
[   14.152909][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[   14.152911][    C3]  ? kthread_affine_node (kernel/kthread.c:412)
[   14.152913][    C3]  ret_from_fork (arch/x86/kernel/process.c:164)
[   14.152915][    C3]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.152917][    C3]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[   14.152919][    C3]  ? kthread_affine_node (kernel/kthread.c:412)
[   14.152921][    C3]  ret_from_fork_asm (arch/x86/entry/entry_64.S:255)
| [   14.179011][  T246] netpoll_send_skb_on_dev(): eni290np1 enabled interrupts in poll nsim_start_xmit (drivers/net/netdevsim/netdev.c:123) netdevsim
| [   14.179336][  T246] WARNING: net/core/netpoll.c:356 at __netpoll_send_skb+0x710/0x800, CPU#3: pr/netcon_ext0/246
| [   14.179576][  T246] Modules linked in: netconsole netdevsim
| [   14.180469][  T246] Tainted: [W]=WARN
[   14.180565][  T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.180715][  T246] RIP: 0010:__netpoll_send_skb (net/core/netpoll.c:356 (discriminator 11))
[   14.180884][  T246] 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
[   14.181379][  T246] RSP: 0018:ffa0000000597a40 EFLAGS: 00010246
[   14.181534][  T246] RAX: dffffc0000000000 RBX: ff1100000ae5a000 RCX: 0000000000000002
[   14.181706][  T246] RDX: ffffffffc0605f00 RSI: ff1100000ae5a118 RDI: ffffffff87eb1be0
[   14.181840][  T246] RBP: ff110000095ef400 R08: ffffffff844fcb29 R09: ffe21c00018d0660
[   14.182002][  T246] R10: ffe21c00018d0661 R11: 1fe2200006a77023 R12: ffffffffc05e9c60
[   14.182173][  T246] R13: 0000000000000003 R14: ff1100000ae5a004 R15: ff1100000c683200
[   14.182348][  T246] FS:  0000000000000000(0000) GS:ff110000acc0b000(0000) knlGS:0000000000000000
[   14.182570][  T246] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.182725][  T246] CR2: 00007f16157eaa48 CR3: 000000002153b003 CR4: 0000000000771ef0
[   14.182911][  T246] PKRU: 55555554
[   14.183000][  T246] Call Trace:
[   14.183093][  T246]  <TASK>
[   14.183154][  T246]  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)
[   14.183284][  T246] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[   14.183500][  T246] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[   14.183652][  T246]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[   14.183776][  T246]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[   14.183975][  T246]  ? 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)
[   14.184130][  T246]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[   14.184257][  T246]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[   14.184381][  T246]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[   14.184573][  T246]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   14.184723][  T246]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   14.184853][  T246]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   14.184997][  T246]  ? __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))
[   14.185184][  T246]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   14.185339][  T246]  kthread (kernel/kthread.c:467)
[   14.185433][  T246]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[   14.185581][  T246]  ? kthread_affine_node (kernel/kthread.c:412)
[   14.185764][  T246]  ret_from_fork (arch/x86/kernel/process.c:164)
[   14.185884][  T246]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.186026][  T246]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[   14.186219][  T246]  ? kthread_affine_node (kernel/kthread.c:412)
[   14.186336][  T246]  ret_from_fork_asm (arch/x86/entry/entry_64.S:255)
| [   14.187972][  T246] raw_local_irq_restore() called with IRQs enabled
| [   14.188116][  T246] WARNING: kernel/locking/irqflag-debug.c:10 at warn_bogus_irq_restore+0xc/0x20, CPU#3: pr/netcon_ext0/246
| [   14.188454][  T246] Modules linked in: netconsole netdevsim
| [   14.188868][  T246] Tainted: [W]=WARN
[   14.189035][  T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.189194][  T246] RIP: 0010:warn_bogus_irq_restore (kernel/locking/irqflag-debug.c:10 (discriminator 4))
[   14.189353][  T246] Code: 45 87 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:	45 87 48 89          	xchg   %r9d,-0x77(%r8)
   4:	54                   	push   %rsp
   5:	24 08                	and    $0x8,%al
   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
[   14.189857][  T246] RSP: 0018:ffa0000000597a98 EFLAGS: 00010202
[   14.190010][  T246] RAX: 0000000000000000 RBX: ff1100000c669130 RCX: 0000000000000000
[   14.190265][  T246] RDX: 0000000000000282 RSI: ffffffff86a6c600 RDI: ffffffff87e7ae60
[   14.190447][  T246] RBP: 00000000000000d3 R08: ffffffff844fcb29 R09: ffe21c00018d0660
[   14.190699][  T246] R10: 0000000000000003 R11: 1fe2200006a77023 R12: 0000000000000315
[   14.190888][  T246] R13: ffa0000000597da0 R14: ff1100000c669000 R15: ff1100000c669650
[   14.191073][  T246] FS:  0000000000000000(0000) GS:ff110000acc0b000(0000) knlGS:0000000000000000
[   14.191360][  T246] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.191515][  T246] CR2: 00007f16157eaa48 CR3: 000000002153b003 CR4: 0000000000771ef0
[   14.191699][  T246] PKRU: 55555554
[   14.191865][  T246] Call Trace:
[   14.191957][  T246]  <TASK>
[   14.192022][  T246]  netpoll_send_skb (net/core/netpoll.c:408 (discriminator 12))
[   14.192146][  T246] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[   14.192304][  T246] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[   14.192523][  T246]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[   14.192648][  T246]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[   14.192771][  T246]  ? 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)
[   14.192998][  T246]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[   14.193123][  T246]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[   14.193250][  T246]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[   14.193370][  T246]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   14.193590][  T246]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   14.193716][  T246]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   14.193873][  T246]  ? __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))
[   14.193995][  T246]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   14.194219][  T246]  kthread (kernel/kthread.c:467)
[   14.194311][  T246]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[   14.194462][  T246]  ? kthread_affine_node (kernel/kthread.c:412)
[   14.194645][  T246]  ret_from_fork (arch/x86/kernel/process.c:164)
[   14.194764][  T246]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   14.194921][  T246]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[   14.195044][  T246]  ? 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