======================================
| 0
| xx__-> [    9.827210][  T234] ------------[ cut here ]------------
| [    9.827444][  T234] WARNING: kernel/softirq.c:430 at __local_bh_enable_ip+0xc0/0x140, CPU#0: pr/netcon_ext0/234
| [    9.827735][  T234] Modules linked in: netconsole netdevsim
[    9.828213][  T234] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.828384][  T234] RIP: 0010:__local_bh_enable_ip (kernel/softirq.c:430 (discriminator 34))
[    9.828593][  T234] 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
[    9.829080][  T234] RSP: 0018:ffa00000007678b8 EFLAGS: 00010046
[    9.829257][  T234] RAX: 0000000000000000 RBX: 0000000020dec81e RCX: 1ffffffff348ca80
[    9.829468][  T234] RDX: 0000000000000001 RSI: 0000000000000201 RDI: ffffffff982657ff
[    9.829675][  T234] RBP: ffa00000007678e8 R08: ffffffff982657ff R09: ffe21c000183d8a3
[    9.829881][  T234] R10: ffe21c000183d8a4 R11: ff1100000c1ec514 R12: ffa0000000767990
[    9.830086][  T234] R13: ff11000009ee5800 R14: ff1100000bbf2000 R15: ff1100000a75ad00
[    9.830292][  T234] FS:  0000000000000000(0000) GS:ff1100009a48b000(0000) knlGS:0000000000000000
[    9.830532][  T234] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.830709][  T234] CR2: 000055b7229ba63c CR3: 000000000c12b006 CR4: 0000000000771ef0
[    9.830917][  T234] PKRU: 55555554
[    9.831022][  T234] Call Trace:
[    9.831125][  T234]  <TASK>
[    9.831197][  T234]  ? _raw_spin_unlock_bh (./include/linux/spinlock_api_smp.h:196 (discriminator 1) kernel/locking/spinlock.c:210 (discriminator 1))
[    9.831338][  T234]  mock_phc_gettime64 (drivers/ptp/ptp_mock.c:98)
[    9.831477][  T234] nsim_start_xmit (./include/linux/skbuff.h:1724 ./include/linux/skbuff.h:1787 drivers/net/netdevsim/netdev.c:189) netdevsim
[    9.831653][  T234]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[    9.831789][  T234]  ? nsim_poll (drivers/net/netdevsim/netdev.c:123) netdevsim
[    9.831927][  T234]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[    9.832065][  T234]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[    9.832203][  T234]  ? netif_skb_features (net/core/dev.c:3747 net/core/dev.c:3856)
[    9.832343][  T234]  netpoll_start_xmit (./include/linux/netdevice.h:5285 net/core/netpoll.c:82)
[    9.832483][  T234]  __netpoll_send_skb (net/core/netpoll.c:341)
[    9.832623][  T234]  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)
[    9.832758][  T234] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[    9.832927][  T234] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[    9.833096][  T234]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[    9.833236][  T234]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[    9.833374][  T234]  ? 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)
[    9.833548][  T234]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[    9.833684][  T234]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[    9.833821][  T234]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[    9.833959][  T234]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[    9.834128][  T234]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[    9.834268][  T234]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[    9.834435][  T234]  ? __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))
[    9.834579][  T234]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[    9.834749][  T234]  kthread (kernel/kthread.c:467)
[    9.834853][  T234]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[    9.835025][  T234]  ? kthread_affine_node (kernel/kthread.c:412)
[    9.835160][  T234]  ret_from_fork (arch/x86/kernel/process.c:164)
[    9.835298][  T234]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.835467][  T234]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[    9.835607][  T234]  ? kthread_affine_node (kernel/kthread.c:412)
[    9.835742][  T234]  ret_from_fork_asm (arch/x86/entry/entry_64.S:255)
| [    9.845734][    C0]  #13: ff1100000ca25228 (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))
| [    9.845987][    C0]
| [    9.845987][    C0] stack backtrace:
| [    9.846132][    C0] Tainted: [W]=WARN
[    9.846133][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.846134][    C0] Call Trace:
[    9.846135][    C0]  <IRQ>
[    9.846136][    C0]  dump_stack_lvl (lib/dump_stack.c:122)
[    9.846139][    C0]  print_usage_bug.part.0 (kernel/locking/lockdep.c:4045)
[    9.846141][    C0]  ? filter_irq_stacks (kernel/stacktrace.c:114)
[    9.846144][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4268)
[    9.846145][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[    9.846148][    C0]  ? save_trace (kernel/locking/lockdep.c:592)
[    9.846150][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[    9.846152][    C0]  mark_lock (kernel/locking/lockdep.c:4753)
[    9.846154][    C0]  mark_usage (kernel/locking/lockdep.c:4642 (discriminator 1))
[    9.846155][    C0]  __lock_acquire (kernel/locking/lockdep.c:5191)
[    9.846156][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 2) kernel/rcu/tree.c:4032 (discriminator 2))
[    9.846159][    C0]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[    9.846162][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[    9.846164][    C0]  ? sch_direct_xmit (./include/linux/netdevice.h:4715 (discriminator 2) net/sched/sch_generic.c:345 (discriminator 2))
[    9.846166][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[    9.846168][    C0]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[    9.846169][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:154)
[    9.846171][    C0]  ? sch_direct_xmit (./include/linux/netdevice.h:4715 (discriminator 2) net/sched/sch_generic.c:345 (discriminator 2))
[    9.846173][    C0]  sch_direct_xmit (./include/linux/netdevice.h:4715 (discriminator 2) net/sched/sch_generic.c:345 (discriminator 2))
[    9.846175][    C0]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[    9.846176][    C0]  ? dequeue_skb (net/sched/sch_generic.c:322)
[    9.846178][    C0]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 7) kernel/rcu/tree_plugin.h:414 (discriminator 7))
[    9.846180][    C0]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[    9.846182][    C0]  __dev_xmit_skb (net/core/dev.c:4186 (discriminator 1))
[    9.846184][    C0]  ? alloc_netdev_dummy (net/core/dev.c:4160)
[    9.846186][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[    9.846188][    C0]  ? _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)
[    9.846189][    C0]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[    9.846191][    C0]  __dev_queue_xmit (net/core/dev.c:4802 (discriminator 1))
[    9.846194][    C0]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 2))
[    9.846197][    C0]  ? netdev_core_pick_tx (net/core/dev.c:4744)
[    9.846200][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[    9.846201][    C0]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[    9.846202][    C0]  ? arp_xmit (./include/linux/rcupdate.h:312 (discriminator 1) ./include/linux/rcupdate.h:850 (discriminator 1) net/ipv4/arp.c:664 (discriminator 1))
[    9.846205][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[    9.846206][    C0]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[    9.846208][    C0]  arp_xmit (./include/linux/rcupdate.h:879 net/ipv4/arp.c:669)
[    9.846210][    C0]  arp_solicit (net/ipv4/arp.c:393)
[    9.846213][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:4411 (discriminator 6))
[    9.846214][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473)
[    9.846216][    C0]  ? _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)
[    9.846218][    C0]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[    9.846219][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[    9.846221][    C0]  ? arp_rcv (net/ipv4/arp.c:335)
[    9.846223][    C0]  ? neigh_probe (net/core/neighbour.c:1095)
[    9.846226][    C0]  neigh_probe (net/core/neighbour.c:1097)
[    9.846228][    C0]  __neigh_event_send (net/core/neighbour.c:1276)
[    9.846230][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[    9.846232][    C0]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[    9.846233][    C0]  neigh_resolve_output (net/core/neighbour.c:1603 (discriminator 1))
[    9.846235][    C0]  ? ___neigh_create (net/core/neighbour.c:726)
[    9.846238][    C0]  ? ___neigh_create (net/core/neighbour.c:726)
[    9.846240][    C0]  ip_finish_output2 (./include/net/neighbour.h:556 (discriminator 2) net/ipv4/ip_output.c:237 (discriminator 2))
[    9.846242][    C0]  ? ip_dst_mtu_maybe_forward (./include/net/ip.h:469)
[    9.846244][    C0]  ? inet_sk_init_flowi4 (./include/net/ip.h:469)
[    9.846246][    C0]  ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:201)
[    9.846248][    C0]  ? __ip_finish_output (./include/net/ip.h:518 net/ipv4/ip_output.c:308)
[    9.846249][    C0]  ip_output (./include/linux/netfilter.h:414 net/ipv4/ip_output.c:438)
[    9.846251][    C0]  ? __ip_local_out (net/ipv4/ip_output.c:98 (discriminator 1) net/ipv4/ip_output.c:109 (discriminator 1))
[    9.846252][    C0]  ip_push_pending_frames (net/ipv4/ip_output.c:1509 net/ipv4/ip_output.c:1528)
[    9.846254][    C0]  __icmp_send (net/ipv4/icmp.c:1002)
[    9.846256][    C0]  ? icmp_echo (net/ipv4/icmp.c:804)
[    9.846258][    C0]  ? 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)
[    9.846260][    C0]  ? dst_alloc (net/core/dst.c:94)
[    9.846261][    C0]  ? fib_validate_source (net/ipv4/fib_frontend.c:450 (discriminator 1))
[    9.846266][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[    9.846269][    C0]  __udp4_lib_rcv (net/ipv4/udp.c:2767)
[    9.846272][    C0]  ? udp_sk_rx_dst_set (net/ipv4/udp.c:2689)
[    9.846274][    C0]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[    9.846275][    C0]  ? 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))
[    9.846278][    C0]  ip_protocol_deliver_rcu (net/ipv4/ip_input.c:209)
[    9.846280][    C0]  ip_local_deliver_finish.constprop.0 (./include/linux/rcupdate.h:879 net/ipv4/ip_input.c:242)
[    9.846282][    C0]  ? ip_rcv_finish_core (net/ipv4/ip_input.c:370 (discriminator 1))
[    9.846284][    C0]  ? 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))
[    9.846286][    C0]  ip_sublist_rcv_finish (net/ipv4/ip_input.c:582 (discriminator 4))
[    9.846288][    C0]  ip_list_rcv_finish (net/ipv4/ip_input.c:603)
[    9.846291][    C0]  ? ip_rcv_finish_core (net/ipv4/ip_input.c:603)
[    9.846293][    C0]  ? ip_rcv_core (net/ipv4/ip_input.c:540)
[    9.846295][    C0]  ip_list_rcv (net/ipv4/ip_input.c:650)
[    9.846297][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[    9.846298][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[    9.846300][    C0]  ? ip_rcv (net/ipv4/ip_input.c:650)
[    9.846302][    C0]  __netif_receive_skb_list_core (net/core/dev.c:6215)
[    9.846305][    C0]  ? __netif_receive_skb_core.constprop.0 (net/core/dev.c:6215)
[    9.846307][    C0]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[    9.846309][    C0]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[    9.846311][    C0]  netif_receive_skb_list_internal (net/core/dev.c:6306 net/core/dev.c:6395)
[    9.846313][    C0]  ? process_backlog (net/core/dev.c:6367)
[    9.846316][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[    9.846317][    C0]  ? reacquire_held_locks (kernel/locking/lockdep.c:238 (discriminator 3) kernel/locking/lockdep.c:227 (discriminator 3) kernel/locking/lockdep.c:5386 (discriminator 3))
[    9.846319][    C0]  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))
[    9.846321][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[    9.846323][    C0]  ? netif_receive_skb_list (net/core/dev.c:6733)
[    9.846325][    C0]  ? 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
[    9.846329][    C0] nsim_poll (drivers/net/netdevsim/netdev.c:510 drivers/net/netdevsim/netdev.c:543) netdevsim
[    9.846332][    C0]  ? nsim_start_peer_tx_queue.isra.0 (drivers/net/netdevsim/netdev.c:539) netdevsim
[    9.846335][    C0]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[    9.846337][    C0]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[    9.846339][    C0]  __napi_poll.constprop.0 (net/core/dev.c:7692)
[    9.846341][    C0]  net_rx_action (net/core/dev.c:7754 net/core/dev.c:7906)
[    9.846344][    C0]  ? run_backlog_napi (net/core/dev.c:7868)
[    9.846346][    C0]  ? trace_csd_function_exit (./include/linux/srcutree.h:291 (discriminator 2) ./include/linux/srcu.h:386 (discriminator 2) ./include/linux/srcu.h:634 (discriminator 2) ./include/trace/events/csd.h:64 (discriminator 2) ./include/trace/events/csd.h:64 (discriminator 2))
[    9.846350][    C0]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[    9.846351][    C0]  ? irqentry_exit (kernel/entry/common.c:243)
[    9.846353][    C0]  ? irqentry_exit (kernel/entry/common.c:243)
[    9.846356][    C0]  ? handle_softirqs (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:606)
[    9.846357][    C0]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[    9.846359][    C0]  ? _local_bh_enable (kernel/softirq.c:580)
[    9.846361][    C0]  irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
[    9.846363][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1056 (discriminator 47) arch/x86/kernel/apic/apic.c:1056 (discriminator 47))
[    9.846365][    C0]  </IRQ>
[    9.846365][    C0]  <TASK>
[    9.846366][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[    9.846368][    C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 kernel/locking/spinlock.c:194)
[    9.846370][    C0] 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
[    9.846372][    C0] RSP: 0018:ffa00000007678e0 EFLAGS: 00000246
[    9.846374][    C0] RAX: 0000000000000086 RBX: ff110000352265c0 RCX: ffffffff98d45503
[    9.846375][    C0] RDX: ff110000050144c0 RSI: ffffffff995d3441 RDI: ffffffff9906c680
[    9.846376][    C0] RBP: 0000000000000246 R08: 0000000000000000 R09: 0000000000000001
[    9.846376][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ff1100000c9f1b40
[    9.846377][    C0] R13: ff11000009ee5800 R14: ff1100000bbf2000 R15: ff11000009ee5a28
[    9.846379][    C0]  ? _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)
[    9.846381][    C0] nsim_start_xmit (./include/linux/hrtimer.h:245 drivers/net/netdevsim/netdev.c:197) netdevsim
[    9.846385][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[    9.846386][    C0]  ? nsim_poll (drivers/net/netdevsim/netdev.c:123) netdevsim
[    9.846389][    C0]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[    9.846391][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[    9.846392][    C0]  ? netif_skb_features (net/core/dev.c:3747 net/core/dev.c:3856)
[    9.846394][    C0]  netpoll_start_xmit (./include/linux/netdevice.h:5285 net/core/netpoll.c:82)
[    9.846396][    C0]  __netpoll_send_skb (net/core/netpoll.c:341)
[    9.846398][    C0]  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)
[    9.846400][    C0] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[    9.846402][    C0] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[    9.846405][    C0]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[    9.846407][    C0]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[    9.846409][    C0]  ? 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)
[    9.846412][    C0]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[    9.846414][    C0]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[    9.846417][    C0]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[    9.846419][    C0]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[    9.846421][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[    9.846423][    C0]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[    9.846424][    C0]  ? __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))
[    9.846427][    C0]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[    9.846428][    C0]  kthread (kernel/kthread.c:467)
[    9.846430][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[    9.846432][    C0]  ? kthread_affine_node (kernel/kthread.c:412)
[    9.846433][    C0]  ret_from_fork (arch/x86/kernel/process.c:164)
[    9.846435][    C0]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.846437][    C0]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[    9.846439][    C0]  ? kthread_affine_node (kernel/kthread.c:412)
[    9.846441][    C0]  ret_from_fork_asm (arch/x86/entry/entry_64.S:255)
| [    9.865086][  T234] netpoll_send_skb_on_dev(): eni305np1 enabled interrupts in poll nsim_start_xmit (drivers/net/netdevsim/netdev.c:123) netdevsim
| [    9.865481][  T234] WARNING: net/core/netpoll.c:356 at __netpoll_send_skb+0x710/0x800, CPU#0: pr/netcon_ext0/234
| [    9.865660][  T234] Modules linked in: netconsole netdevsim
| [    9.865939][  T234] Tainted: [W]=WARN
[    9.866003][  T234] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.866112][  T234] RIP: 0010:__netpoll_send_skb (net/core/netpoll.c:356 (discriminator 11))
[    9.866229][  T234] 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
[    9.866525][  T234] RSP: 0018:ffa0000000767a40 EFLAGS: 00010246
[    9.866635][  T234] RAX: dffffc0000000000 RBX: ff1100000a75a000 RCX: 0000000000000002
[    9.866761][  T234] RDX: ffffffffc0605f00 RSI: ff1100000a75a118 RDI: ffffffff9a4b1be0
[    9.866887][  T234] RBP: ff1100000c81f400 R08: ffffffff96afcb29 R09: ffe21c0001398360
[    9.867017][  T234] R10: ffe21c0001398361 R11: 0000000000000001 R12: ffffffffc059dc60
[    9.867146][  T234] R13: 0000000000000000 R14: ff1100000a75a004 R15: ff11000009cc1a00
[    9.867277][  T234] FS:  0000000000000000(0000) GS:ff1100009a48b000(0000) knlGS:0000000000000000
[    9.867426][  T234] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.867538][  T234] CR2: 000055b7229ba63c CR3: 000000003273b004 CR4: 0000000000771ef0
[    9.867672][  T234] PKRU: 55555554
[    9.867737][  T234] Call Trace:
[    9.867800][  T234]  <TASK>
[    9.867844][  T234]  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)
[    9.867929][  T234] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[    9.868033][  T234] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[    9.868138][  T234]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[    9.868226][  T234]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[    9.868311][  T234]  ? 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)
[    9.868415][  T234]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[    9.868497][  T234]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[    9.868586][  T234]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[    9.868669][  T234]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[    9.868775][  T234]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[    9.868863][  T234]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[    9.868968][  T234]  ? __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))
[    9.869058][  T234]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[    9.869163][  T234]  kthread (kernel/kthread.c:467)
[    9.869234][  T234]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[    9.869349][  T234]  ? kthread_affine_node (kernel/kthread.c:412)
[    9.869435][  T234]  ret_from_fork (arch/x86/kernel/process.c:164)
[    9.869521][  T234]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.869627][  T234]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[    9.869712][  T234]  ? kthread_affine_node (kernel/kthread.c:412)
[    9.869795][  T234]  ret_from_fork_asm (arch/x86/entry/entry_64.S:255)
| [    9.870807][  T234] raw_local_irq_restore() called with IRQs enabled
| [    9.870909][  T234] WARNING: kernel/locking/irqflag-debug.c:10 at warn_bogus_irq_restore+0xc/0x20, CPU#0: pr/netcon_ext0/234
| [    9.871096][  T234] Modules linked in: netconsole netdevsim
| [    9.871385][  T234] Tainted: [W]=WARN
[    9.871453][  T234] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.871560][  T234] RIP: 0010:warn_bogus_irq_restore (kernel/locking/irqflag-debug.c:10 (discriminator 4))
[    9.871670][  T234] Code: a5 99 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:	a5                   	movsl  (%rsi),(%rdi)
   1:	99                   	cltd
   2:	48 89 54 24 08       	mov    %rdx,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
[    9.871964][  T234] RSP: 0018:ffa0000000767a98 EFLAGS: 00010202
[    9.872070][  T234] RAX: 0000000000000000 RBX: ff11000004bf9130 RCX: 0000000000000000
[    9.872202][  T234] RDX: 0000000000000282 RSI: ffffffff9906c600 RDI: ffffffff9a47ae60
[    9.872332][  T234] RBP: 00000000000000d3 R08: ffffffff96afcb29 R09: ffe21c0001398360
[    9.872459][  T234] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000315
[    9.872589][  T234] R13: ffa0000000767da0 R14: ff11000004bf9000 R15: ff11000004bf9650
[    9.872725][  T234] FS:  0000000000000000(0000) GS:ff1100009a48b000(0000) knlGS:0000000000000000
[    9.872872][  T234] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.872978][  T234] CR2: 000055b7229ba63c CR3: 000000003273b004 CR4: 0000000000771ef0
[    9.873104][  T234] PKRU: 55555554
[    9.873169][  T234] Call Trace:
[    9.873244][  T234]  <TASK>
[    9.873287][  T234]  netpoll_send_skb (net/core/netpoll.c:408 (discriminator 12))
[    9.873376][  T234] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[    9.873485][  T234] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[    9.873597][  T234]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[    9.873682][  T234]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[    9.873764][  T234]  ? 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)
[    9.873872][  T234]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[    9.873956][  T234]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[    9.874044][  T234]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[    9.874129][  T234]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[    9.874243][  T234]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[    9.874331][  T234]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[    9.874434][  T234]  ? __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))
[    9.874520][  T234]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[    9.874629][  T234]  kthread (kernel/kthread.c:467)
[    9.874696][  T234]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[    9.874802][  T234]  ? kthread_affine_node (kernel/kthread.c:412)
[    9.874885][  T234]  ret_from_fork (arch/x86/kernel/process.c:164)
[    9.874970][  T234]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.875074][  T234]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[    9.875159][  T234]  ? 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