======================================
| [   11.011026][  T187] netconsole selftest: netcons_k4etL 1
| [   11.011197][  T239] Modules linked in: netconsole netdevsim
| [   11.011406][  T187] netconsole selftest: netcons_k4etL 1
| [   11.011702][  T187] netconsole selftest: netcons_k4etL 1
[   11.011851][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.012068][  T187] netconsole selftest: netcons_k4etL 1
[   11.012188][  T239] RIP: 0010:__local_bh_enable_ip (kernel/softirq.c:430 (discriminator 34))
[   11.012405][  T187] netconsole selftest: netcons_k4etL 1
[   11.012495][  T239] 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
[   11.012710][  T187] netconsole selftest: netcons_k4etL 1
[   11.013113][  T239] RSP: 0018:ffa00000005c78b8 EFLAGS: 00010046
[   11.013116][  T239] RAX: 0000000000000000 RBX: 0000000061c2c9a0 RCX: 1ffffffff0b0ca80
[   11.013332][  T187] netconsole selftest: netcons_k4etL 1
[   11.013404][  T239] RDX: 0000000000000001 RSI: 0000000000000201 RDI: ffffffff836657ff
[   11.013679][  T187] netconsole selftest: netcons_k4etL 1
[   11.013722][  T239] RBP: ffa00000005c78e8 R08: ffffffff836657ff R09: ffe21c00012b7363
[   11.014237][  T239] R10: ffe21c00012b7364 R11: ff110000095b9b14 R12: ffa00000005c7990
[   11.014459][  T239] R13: ff1100000c258400 R14: ff1100000d1f2000 R15: ff1100000a522d00
[   11.014679][  T239] FS:  0000000000000000(0000) GS:ff110000af20b000(0000) knlGS:0000000000000000
[   11.014932][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.015109][  T239] CR2: 00007f6748159000 CR3: 0000000018d3b005 CR4: 0000000000771ef0
[   11.015324][  T239] PKRU: 55555554
[   11.015437][  T239] Call Trace:
[   11.015551][  T239]  <TASK>
[   11.015621][  T239]  ? _raw_spin_unlock_bh (./include/linux/spinlock_api_smp.h:196 (discriminator 1) kernel/locking/spinlock.c:210 (discriminator 1))
[   11.015768][  T239]  mock_phc_gettime64 (drivers/ptp/ptp_mock.c:98)
[   11.015909][  T239] nsim_start_xmit (./include/linux/skbuff.h:1724 ./include/linux/skbuff.h:1787 drivers/net/netdevsim/netdev.c:189) netdevsim
[   11.016087][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[   11.016230][  T239]  ? nsim_poll (drivers/net/netdevsim/netdev.c:123) netdevsim
[   11.016375][  T239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   11.016516][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   11.016652][  T239]  ? netif_skb_features (net/core/dev.c:3747 net/core/dev.c:3856)
[   11.016790][  T239]  netpoll_start_xmit (./include/linux/netdevice.h:5285 net/core/netpoll.c:82)
[   11.016934][  T239]  __netpoll_send_skb (net/core/netpoll.c:341)
[   11.017078][  T239]  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)
[   11.017222][  T239] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[   11.017399][  T239] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[   11.017569][  T239]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[   11.017715][  T239]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[   11.017860][  T239]  ? 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)
[   11.018040][  T239]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[   11.018180][  T239]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[   11.018318][  T239]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[   11.018467][  T239]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.018642][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   11.018788][  T239]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.018962][  T239]  ? __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))
[   11.019100][  T239]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.019275][  T239]  kthread (kernel/kthread.c:467)
[   11.019387][  T239]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[   11.019558][  T239]  ? kthread_affine_node (kernel/kthread.c:412)
[   11.019696][  T239]  ret_from_fork (arch/x86/kernel/process.c:164)
[   11.019832][  T239]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   11.020000][  T239]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[   11.020136][  T239]  ? kthread_affine_node (kernel/kthread.c:412)
[   11.020271][  T239]  ret_from_fork_asm (arch/x86/entry/entry_64.S:255)
| [   11.030923][    C3]  #14: ff1100000d09d228 (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))
| [   11.031179][    C3]
| [   11.031179][    C3] stack backtrace:
| [   11.031334][    C3] Tainted: [W]=WARN
[   11.031334][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.031336][    C3] Call Trace:
[   11.031337][    C3]  <IRQ>
[   11.031338][    C3]  dump_stack_lvl (lib/dump_stack.c:122)
[   11.031341][    C3]  print_usage_bug.part.0 (kernel/locking/lockdep.c:4045)
[   11.031343][    C3]  ? filter_irq_stacks (kernel/stacktrace.c:114)
[   11.031346][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4268)
[   11.031347][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[   11.031349][    C3]  ? save_trace (kernel/locking/lockdep.c:592)
[   11.031352][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[   11.031354][    C3]  mark_lock (kernel/locking/lockdep.c:4753)
[   11.031356][    C3]  mark_usage (kernel/locking/lockdep.c:4642 (discriminator 1))
[   11.031357][    C3]  __lock_acquire (kernel/locking/lockdep.c:5191)
[   11.031359][    C3]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[   11.031361][    C3]  ? stack_depot_save_flags (lib/stackdepot.c:730)
[   11.031364][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   11.031366][    C3]  ? sch_direct_xmit (./include/linux/netdevice.h:4715 (discriminator 2) net/sched/sch_generic.c:345 (discriminator 2))
[   11.031368][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   11.031370][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[   11.031371][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:154)
[   11.031373][    C3]  ? sch_direct_xmit (./include/linux/netdevice.h:4715 (discriminator 2) net/sched/sch_generic.c:345 (discriminator 2))
[   11.031375][    C3]  sch_direct_xmit (./include/linux/netdevice.h:4715 (discriminator 2) net/sched/sch_generic.c:345 (discriminator 2))
[   11.031377][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   11.031379][    C3]  ? dequeue_skb (net/sched/sch_generic.c:322)
[   11.031381][    C3]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 7) kernel/rcu/tree_plugin.h:414 (discriminator 7))
[   11.031382][    C3]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 kernel/locking/spinlock.c:194)
[   11.031384][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[   11.031386][    C3]  __dev_xmit_skb (net/core/dev.c:4186 (discriminator 1))
[   11.031388][    C3]  ? alloc_netdev_dummy (net/core/dev.c:4160)
[   11.031390][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[   11.031392][    C3]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:4411 (discriminator 6))
[   11.031393][    C3]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473)
[   11.031395][    C3]  ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 kernel/rcu/tree.c:3156)
[   11.031398][    C3]  __dev_queue_xmit (net/core/dev.c:4802 (discriminator 1))
[   11.031400][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[   11.031402][    C3]  ? netdev_core_pick_tx (net/core/dev.c:4744)
[   11.031404][    C3]  ? __asan_memcpy (mm/kasan/shadow.c:105 (discriminator 3))
[   11.031408][    C3]  ? eth_header (net/ethernet/eth.c:100)
[   11.031410][    C3]  ? neigh_resolve_output (./include/linux/netdevice.h:3439 net/core/neighbour.c:1614 net/core/neighbour.c:1599)
[   11.031414][    C3]  ip6_finish_output (net/ipv6/ip6_output.c:208 net/ipv6/ip6_output.c:219)
[   11.031416][    C3]  ip6_output (./include/linux/netfilter.h:414 net/ipv6/ip6_output.c:246)
[   11.031418][    C3]  ndisc_send_skb (net/ipv6/ndisc.c:515)
[   11.031420][    C3]  ? ndisc_ns_create (net/ipv6/ndisc.c:470)
[   11.031423][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   11.031424][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[   11.031426][    C3]  ndisc_send_ns (net/ipv6/ndisc.c:656)
[   11.031428][    C3]  ? __ipv6_chk_addr_and_flags (./include/linux/rcupdate.h:322 (discriminator 1) ./include/linux/rcupdate.h:881 (discriminator 1) net/ipv6/addrconf.c:2009 (discriminator 1))
[   11.031430][    C3]  ? pndisc_redo (net/ipv6/ndisc.c:656)
[   11.031432][    C3]  ? __ipv6_chk_addr_and_flags (./include/linux/rcupdate.h:884 net/ipv6/addrconf.c:2009)
[   11.031434][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[   11.031435][    C3]  ndisc_solicit (net/ipv6/ndisc.c:739)
[   11.031437][    C3]  ? ndisc_send_ns (net/ipv6/ndisc.c:739)
[   11.031439][    C3]  ? neigh_probe (net/core/neighbour.c:1095)
[   11.031441][    C3]  neigh_probe (net/core/neighbour.c:1097)
[   11.031443][    C3]  __neigh_event_send (net/core/neighbour.c:1276)
[   11.031445][    C3]  ? ___neigh_create (net/core/neighbour.c:726)
[   11.031448][    C3]  ? ___neigh_create (net/core/neighbour.c:726)
[   11.031450][    C3]  neigh_resolve_output (net/core/neighbour.c:1603 (discriminator 1))
[   11.031452][    C3]  ? ip6_finish_output2 (net/ipv6/ip6_output.c:129 (discriminator 1))
[   11.031454][    C3]  ip6_finish_output (net/ipv6/ip6_output.c:208 net/ipv6/ip6_output.c:219)
[   11.031457][    C3]  ip6_output (./include/linux/netfilter.h:414 net/ipv6/ip6_output.c:246)
[   11.031459][    C3]  ip6_send_skb (net/ipv6/ip6_output.c:1984)
[   11.031461][    C3]  icmp6_send (net/ipv6/icmp.c:826)
[   11.031464][    C3]  ? icmpv6_push_pending_frames (net/ipv6/icmp.c:639)
[   11.031466][    C3]  ? in6_dev_get (./include/net/addrconf.h:404 (discriminator 2))
[   11.031471][    C3]  __udp6_lib_rcv (net/ipv6/udp.c:1217)
[   11.031474][    C3]  ? udpv6_err (net/ipv6/udp.c:1120)
[   11.031476][    C3]  ? ipv6_raw_deliver (net/ipv6/raw.c:209)
[   11.031478][    C3]  ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:440)
[   11.031481][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   11.031483][    C3]  ip6_input (./include/linux/rcupdate.h:879 net/ipv6/ip6_input.c:503)
[   11.031485][    C3]  ip6_sublist_rcv_finish (net/ipv6/ip6_input.c:86 (discriminator 4))
[   11.031487][    C3]  ip6_list_rcv_finish.constprop.0 (net/ipv6/ip6_input.c:109)
[   11.031489][    C3]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 2))
[   11.031491][    C3]  ? ip6_rcv_finish_core.isra.0 (net/ipv6/ip6_input.c:109)
[   11.031493][    C3]  ? ip6_rcv_core (./include/net/sock.h:2980 net/ipv6/ip6_input.c:291)
[   11.031496][    C3]  ipv6_list_rcv (net/ipv6/ip6_input.c:327)
[   11.031498][    C3]  ? ipv6_rcv (net/ipv6/ip6_input.c:327)
[   11.031501][    C3]  __netif_receive_skb_list_core (net/core/dev.c:6215)
[   11.031503][    C3]  ? debug_object_activate (lib/debugobjects.c:829)
[   11.031506][    C3]  ? __netif_receive_skb_core.constprop.0 (net/core/dev.c:6215)
[   11.031508][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   11.031510][    C3]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[   11.031512][    C3]  netif_receive_skb_list_internal (net/core/dev.c:6306 net/core/dev.c:6395)
[   11.031515][    C3]  ? process_backlog (net/core/dev.c:6367)
[   11.031517][    C3]  ? ipv6_gro_receive (./include/net/gro.h:384 net/ipv6/ip6_offload.c:296)
[   11.031520][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[   11.031521][    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))
[   11.031523][    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))
[   11.031525][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   11.031526][    C3]  ? netif_receive_skb_list (net/core/dev.c:6733)
[   11.031529][    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
[   11.031532][    C3] nsim_poll (drivers/net/netdevsim/netdev.c:510 drivers/net/netdevsim/netdev.c:543) netdevsim
[   11.031536][    C3]  ? nsim_start_peer_tx_queue.isra.0 (drivers/net/netdevsim/netdev.c:539) netdevsim
[   11.031539][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[   11.031542][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[   11.031544][    C3]  __napi_poll.constprop.0 (net/core/dev.c:7692)
[   11.031547][    C3]  net_rx_action (net/core/dev.c:7754 net/core/dev.c:7906)
[   11.031550][    C3]  ? run_backlog_napi (net/core/dev.c:7868)
[   11.031552][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[   11.031555][    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))
[   11.031559][    C3]  ? ktime_get (kernel/time/timekeeping.c:381 kernel/time/timekeeping.c:404 kernel/time/timekeeping.c:826)
[   11.031562][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[   11.031563][    C3]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[   11.031565][    C3]  ? _local_bh_enable (kernel/softirq.c:580)
[   11.031567][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   11.031569][    C3]  irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723 kernel/softirq.c:739)
[   11.031570][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1056 (discriminator 47) arch/x86/kernel/apic/apic.c:1056 (discriminator 47))
[   11.031572][    C3]  </IRQ>
[   11.031573][    C3]  <TASK>
[   11.031574][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[   11.031576][    C3] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 kernel/locking/spinlock.c:194)
[   11.031579][    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
[   11.031580][    C3] RSP: 0018:ffa00000005c78e0 EFLAGS: 00000246
[   11.031582][    C3] RAX: 0000000000000086 RBX: ff110000353a65c0 RCX: ffffffff84145503
[   11.031583][    C3] RDX: ff1100000c712280 RSI: ffffffff849d3441 RDI: ffffffff8446c680
[   11.031584][    C3] RBP: 0000000000000246 R08: 0000000000000000 R09: 0000000000000001
[   11.031585][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: ff1100000555eac0
[   11.031585][    C3] R13: ff1100000c258400 R14: ff1100000d1f2000 R15: ff1100000c258628
[   11.031587][    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)
[   11.031589][    C3] nsim_start_xmit (./include/linux/hrtimer.h:245 drivers/net/netdevsim/netdev.c:197) netdevsim
[   11.031593][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[   11.031594][    C3]  ? nsim_poll (drivers/net/netdevsim/netdev.c:123) netdevsim
[   11.031598][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   11.031599][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   11.031601][    C3]  ? netif_skb_features (net/core/dev.c:3747 net/core/dev.c:3856)
[   11.031603][    C3]  netpoll_start_xmit (./include/linux/netdevice.h:5285 net/core/netpoll.c:82)
[   11.031605][    C3]  __netpoll_send_skb (net/core/netpoll.c:341)
[   11.031607][    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)
[   11.031609][    C3] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[   11.031611][    C3] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[   11.031614][    C3]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[   11.031616][    C3]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[   11.031619][    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)
[   11.031622][    C3]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[   11.031624][    C3]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[   11.031626][    C3]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[   11.031628][    C3]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.031630][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   11.031632][    C3]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.031634][    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))
[   11.031636][    C3]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.031638][    C3]  kthread (kernel/kthread.c:467)
[   11.031640][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[   11.031641][    C3]  ? kthread_affine_node (kernel/kthread.c:412)
[   11.031643][    C3]  ret_from_fork (arch/x86/kernel/process.c:164)
[   11.031645][    C3]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   11.031647][    C3]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[   11.031649][    C3]  ? kthread_affine_node (kernel/kthread.c:412)
[   11.031651][    C3]  ret_from_fork_asm (arch/x86/entry/entry_64.S:255)
| [   11.049830][  T239] netpoll_send_skb_on_dev(): eni500np1 enabled interrupts in poll nsim_start_xmit (drivers/net/netdevsim/netdev.c:123) netdevsim
| [   11.050072][  T239] WARNING: net/core/netpoll.c:356 at __netpoll_send_skb+0x710/0x800, CPU#3: pr/netcon_ext0/239
| [   11.050247][  T239] Modules linked in: netconsole netdevsim
| [   11.050542][  T239] Tainted: [W]=WARN
[   11.050606][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.050717][  T239] RIP: 0010:__netpoll_send_skb (net/core/netpoll.c:356 (discriminator 11))
[   11.050825][  T239] 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
[   11.051125][  T239] RSP: 0018:ffa00000005c7a40 EFLAGS: 00010246
[   11.051234][  T239] RAX: dffffc0000000000 RBX: ff1100000a522000 RCX: 0000000000000002
[   11.051363][  T239] RDX: ffffffffc0605f00 RSI: ff1100000a522118 RDI: ffffffff858b1be0
[   11.051493][  T239] RBP: ff1100000d04fa00 R08: ffffffff81efcb29 R09: ffe21c0001416ae0
[   11.051621][  T239] R10: ffe21c0001416ae1 R11: 0000000000000001 R12: ffffffffc0441c60
[   11.051748][  T239] R13: 0000000000000003 R14: ff1100000a522004 R15: ff1100000a0b5600
[   11.051874][  T239] FS:  0000000000000000(0000) GS:ff110000af20b000(0000) knlGS:0000000000000000
[   11.052027][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.052136][  T239] CR2: 00007f6748159000 CR3: 0000000018d3b005 CR4: 0000000000771ef0
[   11.052263][  T239] PKRU: 55555554
[   11.052329][  T239] Call Trace:
[   11.052394][  T239]  <TASK>
[   11.052438][  T239]  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)
[   11.052531][  T239] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[   11.052637][  T239] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[   11.052743][  T239]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[   11.052831][  T239]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[   11.052919][  T239]  ? 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)
[   11.053025][  T239]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[   11.053109][  T239]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[   11.053193][  T239]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[   11.053277][  T239]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.053392][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   11.053479][  T239]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.053581][  T239]  ? __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))
[   11.053665][  T239]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.053769][  T239]  kthread (kernel/kthread.c:467)
[   11.053832][  T239]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[   11.053939][  T239]  ? kthread_affine_node (kernel/kthread.c:412)
[   11.054025][  T239]  ret_from_fork (arch/x86/kernel/process.c:164)
[   11.054107][  T239]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   11.054214][  T239]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[   11.054298][  T239]  ? kthread_affine_node (kernel/kthread.c:412)
[   11.054386][  T239]  ret_from_fork_asm (arch/x86/entry/entry_64.S:255)
| [   11.055406][  T239] raw_local_irq_restore() called with IRQs enabled
| [   11.055512][  T239] WARNING: kernel/locking/irqflag-debug.c:10 at warn_bogus_irq_restore+0xc/0x20, CPU#3: pr/netcon_ext0/239
| [   11.055708][  T239] Modules linked in: netconsole netdevsim
| [   11.055999][  T239] Tainted: [W]=WARN
[   11.056064][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.056167][  T239] RIP: 0010:warn_bogus_irq_restore (kernel/locking/irqflag-debug.c:10 (discriminator 4))
[   11.056274][  T239] Code: e5 84 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:	e5 84                	in     $0x84,%eax
   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
[   11.056573][  T239] RSP: 0018:ffa00000005c7a98 EFLAGS: 00010202
[   11.056677][  T239] RAX: 0000000000000000 RBX: ff11000008989130 RCX: 0000000000000000
[   11.056802][  T239] RDX: 0000000000000282 RSI: ffffffff8446c600 RDI: ffffffff8587ae60
[   11.056935][  T239] RBP: 0000000000000043 R08: ffffffff81efcb29 R09: ffe21c0001416ae0
[   11.057060][  T239] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000000003a5
[   11.057184][  T239] R13: ffa00000005c7da0 R14: ff11000008989000 R15: ff11000008989650
[   11.057318][  T239] FS:  0000000000000000(0000) GS:ff110000af20b000(0000) knlGS:0000000000000000
[   11.057469][  T239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.057576][  T239] CR2: 00007f6748159000 CR3: 0000000018d3b005 CR4: 0000000000771ef0
[   11.057708][  T239] PKRU: 55555554
[   11.057771][  T239] Call Trace:
[   11.057835][  T239]  <TASK>
[   11.057880][  T239]  netpoll_send_skb (net/core/netpoll.c:408 (discriminator 12))
[   11.057975][  T239] send_ext_msg_udp (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1699 drivers/net/netconsole.c:1863) netconsole
[   11.058084][  T239] netconsole_write (drivers/net/netconsole.c:1915) netconsole
[   11.058189][  T239]  nbcon_emit_next_record (kernel/printk/nbcon.c:1070)
[   11.058278][  T239]  ? nbcon_can_proceed (kernel/printk/nbcon.c:981)
[   11.058371][  T239]  ? 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)
[   11.058485][  T239]  nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1))
[   11.058569][  T239]  ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130)
[   11.058655][  T239]  nbcon_kthread_func (kernel/printk/nbcon.c:1273)
[   11.058741][  T239]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.058845][  T239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[   11.058934][  T239]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.059041][  T239]  ? __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))
[   11.059125][  T239]  ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221)
[   11.059229][  T239]  kthread (kernel/kthread.c:467)
[   11.059293][  T239]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[   11.059403][  T239]  ? kthread_affine_node (kernel/kthread.c:412)
[   11.059487][  T239]  ret_from_fork (arch/x86/kernel/process.c:164)
[   11.059571][  T239]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   11.059676][  T239]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665)
[   11.059759][  T239]  ? 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