======================================
| [   27.732347][  T319] softirqs last disabled at (16327): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   27.732349][  T319] Preemption disabled at:
| [   27.732350][  T319] vprintk_emit (kernel/printk/printk.c:2471)
| [   27.732358][  T319] Tainted: [W]=WARN
[   27.732359][  T319] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.732361][  T319] Call Trace:
[   27.732362][  T319]  <TASK>
[   27.732364][  T319]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.732369][  T319]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   27.732371][  T319]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.732376][  T319]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.732380][  T319]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   27.732384][  T319]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   27.732386][  T319]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.732393][  T319]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   27.732396][  T319]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.732399][  T319]  put_chars (drivers/char/virtio_console.c:1176)
[   27.732401][  T319]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   27.732403][  T319]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.732406][  T319]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   27.732409][  T319]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   27.732413][  T319]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.732417][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.732419][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.732423][  T319]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.732425][  T319]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   27.732428][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.732431][  T319]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.732435][  T319]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.732438][  T319]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.732440][  T319]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   27.732443][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.732445][  T319]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.732449][  T319]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.732453][  T319]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.732455][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.732460][  T319]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.732463][  T319]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.732465][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.732466][  T319]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   27.732470][  T319]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.732472][  T319]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.732474][  T319]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.732478][  T319]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.732483][  T319]  ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact
[   27.732486][  T319]  _printk (kernel/printk/printk.c:2504)
[   27.732489][  T319]  ? snapshot_read.cold (user.c:?)
[   27.732495][  T319]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   27.732499][  T319] gact_init_module (net/sched/act_gact.c:180) act_gact
[   27.732501][  T319]  do_one_initcall (init/main.c:1357)
[   27.732504][  T319]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   27.732508][  T319]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   27.732511][  T319]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   27.732516][  T319]  do_init_module (kernel/module/main.c:3117)
[   27.732519][  T319]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.732523][  T319]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   27.732526][  T319]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   27.732529][  T319]  load_module (kernel/module/main.c:3593)
[   27.732534][  T319]  ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11))
[   27.732539][  T319]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   27.732542][  T319]  ? __ia32_sys_fsconfig (??:?)
[   27.732552][  T319]  ? backing_file_read_iter (fs/backing-file.c:211)
[   27.732556][  T319]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.732559][  T319]  init_module_from_file (kernel/module/main.c:3790)
[   27.732562][  T319]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   27.732569][  T319]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.732573][  T319]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   27.732576][  T319]  idempotent_init_module (kernel/module/main.c:3802)
[   27.732578][  T319]  ? init_module_from_file (kernel/module/main.c:3791)
[   27.732584][  T319]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   27.732586][  T319]  ? __x64_sys_pread64 (fs/read_write.c:764 fs/read_write.c:772 fs/read_write.c:769 fs/read_write.c:769)
[   27.732591][  T319]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   27.732593][  T319]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.732597][  T319]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   27.732600][  T319]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   27.732603][  T319]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.732605][  T319] RIP: 0033:0x7f9b82a0d37d
[   27.732609][  T319] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   27.732611][  T319] RSP: 002b:00007ffd01209528 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   27.732613][  T319] RAX: ffffffffffffffda RBX: 000055e8d4ae8810 RCX: 00007f9b82a0d37d
[   27.732615][  T319] RDX: 0000000000000000 RSI: 000055e8bf8acffd RDI: 0000000000000000
[   27.732616][  T319] RBP: 00007ffd012095c0 R08: 0000000000000000 R09: 0000000000000000
[   27.732617][  T319] R10: 0000000000000000 R11: 0000000000000246 R12: 000055e8bf8acffd
[   27.732617][  T319] R13: 000055e8d4ae8960 R14: 0000000000040000 R15: 0000000000000000
| [   44.213950][  T395] softirqs last disabled at (15214): neigh_forced_gc (./include/linux/spinlock.h:353 net/core/neighbour.c:265)
| [   44.213952][  T395] Preemption disabled at:
| [   44.213953][  T395] vprintk_emit (kernel/printk/printk.c:2471)
| [   44.213962][  T395] Tainted: [W]=WARN
[   44.213963][  T395] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.213965][  T395] Call Trace:
[   44.213966][  T395]  <TASK>
[   44.213967][  T395]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   44.213973][  T395]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   44.213975][  T395]  __might_resched.cold (kernel/sched/core.c:9234)
[   44.213979][  T395]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   44.213984][  T395]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   44.213988][  T395]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   44.213990][  T395]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   44.213997][  T395]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   44.213999][  T395]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   44.214003][  T395]  put_chars (drivers/char/virtio_console.c:1176)
[   44.214006][  T395]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   44.214009][  T395]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   44.214014][  T395]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   44.214018][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.214023][  T395]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   44.214026][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.214031][  T395]  console_emit_next_record (kernel/printk/printk.c:3183)
[   44.214035][  T395]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   44.214037][  T395]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   44.214040][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.214042][  T395]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   44.214046][  T395]  console_flush_one_record (kernel/printk/printk.c:3268)
[   44.214050][  T395]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   44.214052][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.214057][  T395]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   44.214060][  T395]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   44.214062][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.214063][  T395]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   44.214067][  T395]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   44.214069][  T395]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   44.214072][  T395]  vprintk_emit (kernel/printk/printk.c:2479)
[   44.214075][  T395]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   44.214077][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   44.214081][  T395]  _printk (kernel/printk/printk.c:2504)
[   44.214084][  T395]  ? snapshot_read.cold (user.c:?)
[   44.214086][  T395]  ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3))
[   44.214092][  T395]  ? idr_get_free (??:?)
[   44.214094][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   44.214098][  T395]  neigh_alloc.cold (net/core/neighbour.c:510 (discriminator 3))
[   44.214103][  T395]  ___neigh_create (net/core/neighbour.c:652)
[   44.214108][  T395]  neigh_add (net/core/neighbour.c:2129)
[   44.214111][  T395]  ? __mutex_lock (kernel/locking/mutex.c:112 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   44.214113][  T395]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:80 net/core/rtnetlink.c:7138)
[   44.214115][  T395]  ? pneigh_create (./include/linux/netdevice.h:4505 (discriminator 31))
[   44.214127][  T395]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7141)
[   44.214130][  T395]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.214132][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.214136][  T395]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.214138][  T395]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   44.214142][  T395]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   44.214145][  T395]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.214148][  T395]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   44.214155][  T395]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   44.214157][  T395]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   44.214161][  T395]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   44.214165][  T395]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   44.214167][  T395]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   44.214169][  T395]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   44.214172][  T395]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6))
[   44.214176][  T395]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   44.214180][  T395]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   44.214184][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   44.214186][  T395]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   44.214191][  T395]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   44.214195][  T395]  ____sys_sendmsg (net/socket.c:2713)
[   44.214198][  T395]  ? copy_msghdr_from_user (net/socket.c:2650)
[   44.214200][  T395]  ? sock_write_iter (net/socket.c:1269)
[   44.214201][  T395]  ? move_addr_to_kernel (net/socket.c:258)
[   44.214209][  T395]  ___sys_sendmsg (net/socket.c:2767)
[   44.214212][  T395]  ? copy_msghdr_from_user (net/socket.c:2619)
[   44.214213][  T395]  ? kfree (mm/slub.c:6778 (discriminator 1))
[   44.214229][  T395]  __sys_sendmsg (net/socket.c:2799)
[   44.214232][  T395]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   44.214238][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.214239][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.214242][  T395]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   44.214245][  T395]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   44.214247][  T395]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.214250][  T395] RIP: 0033:0x7f39f1a2054e
[   44.214254][  T395] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   44.214256][  T395] RSP: 002b:00007fff933f3640 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   44.214258][  T395] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f39f1a2054e
[   44.214260][  T395] RDX: 0000000000000000 RSI: 00007fff933f36f0 RDI: 0000000000000005
[   44.214260][  T395] RBP: 00007fff933f3650 R08: 0000000000000000 R09: 0000000000000000
[   44.214261][  T395] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90da2a
[   44.214262][  T395] R13: 00000000004a1620 R14: 0000000000000000 R15: 0000000000000000
| [  106.660373][  T716] softirqs last disabled at (18456): neigh_forced_gc (./include/linux/spinlock.h:353 net/core/neighbour.c:265)
| [  106.660375][  T716] Preemption disabled at:
| [  106.660376][  T716] vprintk_emit (kernel/printk/printk.c:2471)
| [  106.660385][  T716] Tainted: [W]=WARN
[  106.660386][  T716] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  106.660388][  T716] Call Trace:
[  106.660389][  T716]  <TASK>
[  106.660391][  T716]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  106.660397][  T716]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  106.660398][  T716]  __might_resched.cold (kernel/sched/core.c:9234)
[  106.660403][  T716]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  106.660408][  T716]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  106.660412][  T716]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  106.660414][  T716]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  106.660421][  T716]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  106.660423][  T716]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  106.660427][  T716]  put_chars (drivers/char/virtio_console.c:1176)
[  106.660430][  T716]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  106.660431][  T716]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  106.660435][  T716]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  106.660438][  T716]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  106.660443][  T716]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  106.660447][  T716]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  106.660452][  T716]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  106.660455][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  106.660459][  T716]  console_emit_next_record (kernel/printk/printk.c:3183)
[  106.660463][  T716]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  106.660465][  T716]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  106.660469][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  106.660470][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  106.660474][  T716]  console_flush_one_record (kernel/printk/printk.c:3268)
[  106.660478][  T716]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  106.660480][  T716]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  106.660486][  T716]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  106.660488][  T716]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  106.660490][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  106.660492][  T716]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  106.660496][  T716]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  106.660497][  T716]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  106.660500][  T716]  vprintk_emit (kernel/printk/printk.c:2479)
[  106.660503][  T716]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  106.660505][  T716]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  106.660510][  T716]  _printk (kernel/printk/printk.c:2504)
[  106.660513][  T716]  ? snapshot_read.cold (user.c:?)
[  106.660515][  T716]  ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3))
[  106.660521][  T716]  ? idr_get_free (??:?)
[  106.660522][  T716]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  106.660527][  T716]  neigh_alloc.cold (net/core/neighbour.c:510 (discriminator 3))
[  106.660532][  T716]  ___neigh_create (net/core/neighbour.c:652)
[  106.660544][  T716]  neigh_add (net/core/neighbour.c:2129)
[  106.660546][  T716]  ? __mutex_lock (kernel/locking/mutex.c:112 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  106.660549][  T716]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:80 net/core/rtnetlink.c:7138)
[  106.660552][  T716]  ? pneigh_create (./include/linux/netdevice.h:4505 (discriminator 31))
[  106.660564][  T716]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7141)
[  106.660568][  T716]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  106.660569][  T716]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  106.660574][  T716]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  106.660576][  T716]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  106.660579][  T716]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  106.660582][  T716]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  106.660585][  T716]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  106.660592][  T716]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[  106.660594][  T716]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[  106.660598][  T716]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  106.660602][  T716]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  106.660605][  T716]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[  106.660607][  T716]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[  106.660609][  T716]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6))
[  106.660614][  T716]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  106.660618][  T716]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  106.660621][  T716]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  106.660623][  T716]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  106.660629][  T716]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  106.660633][  T716]  ____sys_sendmsg (net/socket.c:2713)
[  106.660635][  T716]  ? copy_msghdr_from_user (net/socket.c:2650)
[  106.660637][  T716]  ? sock_write_iter (net/socket.c:1269)
[  106.660639][  T716]  ? move_addr_to_kernel (net/socket.c:258)
[  106.660646][  T716]  ___sys_sendmsg (net/socket.c:2767)
[  106.660649][  T716]  ? copy_msghdr_from_user (net/socket.c:2619)
[  106.660651][  T716]  ? kfree (mm/slub.c:6778 (discriminator 1))
[  106.660666][  T716]  __sys_sendmsg (net/socket.c:2799)
[  106.660669][  T716]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  106.660675][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  106.660677][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  106.660680][  T716]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  106.660682][  T716]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  106.660685][  T716]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  106.660687][  T716] RIP: 0033:0x7f9b1bff954e
[  106.660691][  T716] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  106.660693][  T716] RSP: 002b:00007ffee2c15c00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  106.660695][  T716] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9b1bff954e
[  106.660697][  T716] RDX: 0000000000000000 RSI: 00007ffee2c15cb0 RDI: 0000000000000005
[  106.660698][  T716] RBP: 00007ffee2c15c10 R08: 0000000000000000 R09: 0000000000000000
[  106.660698][  T716] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90da68


Finger prints:
neigh_forced_gc:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars