======================================
| [   26.245458][  T318] softirqs last disabled at (21105): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   26.245461][  T318] Preemption disabled at:
| [   26.245462][  T318] vprintk_emit (kernel/printk/printk.c:2471)
| [   26.245470][  T318] Tainted: [W]=WARN
[   26.245471][  T318] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.245473][  T318] Call Trace:
[   26.245475][  T318]  <TASK>
[   26.245476][  T318]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.245482][  T318]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   26.245484][  T318]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.245488][  T318]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.245493][  T318]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   26.245497][  T318]  __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))
[   26.245499][  T318]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.245506][  T318]  ? 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)
[   26.245509][  T318]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.245512][  T318]  put_chars (drivers/char/virtio_console.c:1176)
[   26.245514][  T318]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   26.245516][  T318]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.245519][  T318]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.245522][  T318]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.245527][  T318]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.245531][  T318]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.245533][  T318]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.245538][  T318]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.245539][  T318]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   26.245543][  T318]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.245545][  T318]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.245549][  T318]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.245553][  T318]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.245555][  T318]  ? 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))
[   26.245558][  T318]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.245560][  T318]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.245563][  T318]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.245568][  T318]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.245569][  T318]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.245575][  T318]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.245578][  T318]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.245580][  T318]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.245581][  T318]  ? 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)
[   26.245585][  T318]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.245587][  T318]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.245589][  T318]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.245593][  T318]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.245598][  T318]  ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact
[   26.245600][  T318]  _printk (kernel/printk/printk.c:2504)
[   26.245604][  T318]  ? snapshot_read.cold (user.c:?)
[   26.245610][  T318]  ? 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)
[   26.245614][  T318] gact_init_module (net/sched/act_gact.c:180) act_gact
[   26.245616][  T318]  do_one_initcall (init/main.c:1357)
[   26.245619][  T318]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   26.245623][  T318]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   26.245626][  T318]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   26.245631][  T318]  do_init_module (kernel/module/main.c:3117)
[   26.245634][  T318]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.245639][  T318]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   26.245641][  T318]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   26.245645][  T318]  load_module (kernel/module/main.c:3593)
[   26.245650][  T318]  ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11))
[   26.245655][  T318]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   26.245658][  T318]  ? __ia32_sys_fsconfig (??:?)
[   26.245662][  T318]  ? backing_file_read_iter (fs/backing-file.c:211)
[   26.245666][  T318]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.245670][  T318]  init_module_from_file (kernel/module/main.c:3790)
[   26.245672][  T318]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   26.245680][  T318]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.245683][  T318]  ? 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)
[   26.245687][  T318]  idempotent_init_module (kernel/module/main.c:3802)
[   26.245689][  T318]  ? init_module_from_file (kernel/module/main.c:3791)
[   26.245695][  T318]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   26.245697][  T318]  ? __x64_sys_pread64 (fs/read_write.c:764 fs/read_write.c:772 fs/read_write.c:769 fs/read_write.c:769)
[   26.245703][  T318]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   26.245704][  T318]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.245708][  T318]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   26.245711][  T318]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   26.245713][  T318]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.245715][  T318] RIP: 0033:0x7f8aba39037d
[   26.245719][  T318] 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
[   26.245721][  T318] RSP: 002b:00007ffd3b802728 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   26.245723][  T318] RAX: ffffffffffffffda RBX: 0000563314187810 RCX: 00007f8aba39037d
[   26.245725][  T318] RDX: 0000000000000000 RSI: 000056330b25dffd RDI: 0000000000000000
[   26.245725][  T318] RBP: 00007ffd3b8027c0 R08: 0000000000000000 R09: 0000000000000000
[   26.245726][  T318] R10: 0000000000000000 R11: 0000000000000246 R12: 000056330b25dffd
[   26.245727][  T318] R13: 0000563314187960 R14: 0000000000040000 R15: 0000000000000000
| [   42.322436][  T394] softirqs last disabled at (17850): neigh_forced_gc (./include/linux/spinlock.h:353 net/core/neighbour.c:265)
| [   42.322439][  T394] Preemption disabled at:
| [   42.322440][  T394] vprintk_emit (kernel/printk/printk.c:2471)
| [   42.322448][  T394] Tainted: [W]=WARN
[   42.322449][  T394] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   42.322450][  T394] Call Trace:
[   42.322452][  T394]  <TASK>
[   42.322454][  T394]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   42.322460][  T394]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   42.322461][  T394]  __might_resched.cold (kernel/sched/core.c:9234)
[   42.322466][  T394]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   42.322471][  T394]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   42.322475][  T394]  __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))
[   42.322477][  T394]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   42.322484][  T394]  ? 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)
[   42.322487][  T394]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   42.322490][  T394]  put_chars (drivers/char/virtio_console.c:1176)
[   42.322493][  T394]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   42.322496][  T394]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   42.322501][  T394]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   42.322505][  T394]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.322510][  T394]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   42.322513][  T394]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.322518][  T394]  console_emit_next_record (kernel/printk/printk.c:3183)
[   42.322522][  T394]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   42.322524][  T394]  ? 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))
[   42.322527][  T394]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.322529][  T394]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.322533][  T394]  console_flush_one_record (kernel/printk/printk.c:3268)
[   42.322537][  T394]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   42.322539][  T394]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.322544][  T394]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   42.322547][  T394]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   42.322549][  T394]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.322551][  T394]  ? 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)
[   42.322554][  T394]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   42.322556][  T394]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   42.322559][  T394]  vprintk_emit (kernel/printk/printk.c:2479)
[   42.322562][  T394]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   42.322564][  T394]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.322569][  T394]  _printk (kernel/printk/printk.c:2504)
[   42.322572][  T394]  ? snapshot_read.cold (user.c:?)
[   42.322574][  T394]  ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3))
[   42.322580][  T394]  ? idr_get_free (??:?)
[   42.322582][  T394]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.322586][  T394]  neigh_alloc.cold (net/core/neighbour.c:510 (discriminator 3))
[   42.322591][  T394]  ___neigh_create (net/core/neighbour.c:652)
[   42.322597][  T394]  neigh_add (net/core/neighbour.c:2129)
[   42.322599][  T394]  ? __mutex_lock (kernel/locking/mutex.c:112 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   42.322602][  T394]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:80 net/core/rtnetlink.c:7138)
[   42.322604][  T394]  ? pneigh_create (./include/linux/netdevice.h:4505 (discriminator 31))
[   42.322616][  T394]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7141)
[   42.322619][  T394]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   42.322621][  T394]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.322625][  T394]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.322627][  T394]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.322631][  T394]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   42.322634][  T394]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   42.322637][  T394]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   42.322644][  T394]  ? 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))
[   42.322646][  T394]  ? 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))
[   42.322650][  T394]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   42.322654][  T394]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   42.322656][  T394]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   42.322658][  T394]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   42.322661][  T394]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6))
[   42.322665][  T394]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   42.322669][  T394]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   42.322673][  T394]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.322675][  T394]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   42.322681][  T394]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   42.322685][  T394]  ____sys_sendmsg (net/socket.c:2713)
[   42.322687][  T394]  ? copy_msghdr_from_user (net/socket.c:2650)
[   42.322690][  T394]  ? sock_write_iter (net/socket.c:1269)
[   42.322691][  T394]  ? move_addr_to_kernel (net/socket.c:258)
[   42.322699][  T394]  ___sys_sendmsg (net/socket.c:2767)
[   42.322702][  T394]  ? copy_msghdr_from_user (net/socket.c:2619)
[   42.322703][  T394]  ? kfree (mm/slub.c:6778 (discriminator 1))
[   42.322718][  T394]  __sys_sendmsg (net/socket.c:2799)
[   42.322721][  T394]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   42.322727][  T394]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.322729][  T394]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.322732][  T394]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   42.322734][  T394]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   42.322737][  T394]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   42.322739][  T394] RIP: 0033:0x7fde688e854e
[   42.322743][  T394] 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
[   42.322745][  T394] RSP: 002b:00007ffd49519ff0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   42.322747][  T394] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fde688e854e
[   42.322749][  T394] RDX: 0000000000000000 RSI: 00007ffd4951a0a0 RDI: 0000000000000005
[   42.322750][  T394] RBP: 00007ffd4951a000 R08: 0000000000000000 R09: 0000000000000000
[   42.322750][  T394] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912ca9
[   42.322751][  T394] R13: 00000000004a1620 R14: 0000000000000000 R15: 0000000000000000
| [  104.189412][  T716] softirqs last disabled at (13424): neigh_forced_gc (./include/linux/spinlock.h:353 net/core/neighbour.c:265)
| [  104.189415][  T716] Preemption disabled at:
| [  104.189416][  T716] vprintk_emit (kernel/printk/printk.c:2471)
| [  104.189428][  T716] Tainted: [W]=WARN
[  104.189429][  T716] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  104.189431][  T716] Call Trace:
[  104.189434][  T716]  <TASK>
[  104.189437][  T716]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  104.189445][  T716]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  104.189448][  T716]  __might_resched.cold (kernel/sched/core.c:9234)
[  104.189454][  T716]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  104.189460][  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)
[  104.189466][  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))
[  104.189469][  T716]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  104.189479][  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)
[  104.189483][  T716]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  104.189488][  T716]  put_chars (drivers/char/virtio_console.c:1176)
[  104.189492][  T716]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  104.189494][  T716]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  104.189498][  T716]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  104.189502][  T716]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  104.189510][  T716]  ? __schedule (kernel/sched/core.c:7277)
[  104.189523][  T716]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  104.189530][  T716]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.189541][  T716]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  104.189548][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.189557][  T716]  console_emit_next_record (kernel/printk/printk.c:3183)
[  104.189564][  T716]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  104.189567][  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))
[  104.189572][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.189575][  T716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  104.189581][  T716]  console_flush_one_record (kernel/printk/printk.c:3268)
[  104.189588][  T716]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  104.189590][  T716]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.189599][  T716]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  104.189603][  T716]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  104.189606][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.189608][  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)
[  104.189614][  T716]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  104.189617][  T716]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  104.189621][  T716]  vprintk_emit (kernel/printk/printk.c:2479)
[  104.189626][  T716]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  104.189629][  T716]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  104.189637][  T716]  _printk (kernel/printk/printk.c:2504)
[  104.189642][  T716]  ? snapshot_read.cold (user.c:?)
[  104.189644][  T716]  ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3))
[  104.189651][  T716]  ? idr_get_free (??:?)
[  104.189654][  T716]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  104.189662][  T716]  neigh_alloc.cold (net/core/neighbour.c:510 (discriminator 3))
[  104.189676][  T716]  ___neigh_create (net/core/neighbour.c:652)
[  104.189687][  T716]  neigh_add (net/core/neighbour.c:2129)
[  104.189694][  T716]  ? __mutex_lock (kernel/locking/mutex.c:112 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  104.189700][  T716]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:80 net/core/rtnetlink.c:7138)
[  104.189703][  T716]  ? pneigh_create (./include/linux/netdevice.h:4505 (discriminator 31))
[  104.189725][  T716]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7141)
[  104.189730][  T716]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  104.189732][  T716]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.189740][  T716]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  104.189743][  T716]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  104.189749][  T716]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  104.189753][  T716]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  104.189757][  T716]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  104.189768][  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))
[  104.189770][  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))
[  104.189777][  T716]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  104.189784][  T716]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  104.189787][  T716]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[  104.189789][  T716]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[  104.189792][  T716]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6))
[  104.189799][  T716]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  104.189805][  T716]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  104.189811][  T716]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  104.189813][  T716]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  104.189821][  T716]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  104.189827][  T716]  ____sys_sendmsg (net/socket.c:2713)
[  104.189830][  T716]  ? copy_msghdr_from_user (net/socket.c:2650)
[  104.189834][  T716]  ? sock_write_iter (net/socket.c:1269)
[  104.189836][  T716]  ? move_addr_to_kernel (net/socket.c:258)
[  104.189848][  T716]  ___sys_sendmsg (net/socket.c:2767)
[  104.189852][  T716]  ? copy_msghdr_from_user (net/socket.c:2619)
[  104.189855][  T716]  ? kfree (mm/slub.c:6778 (discriminator 1))
[  104.189885][  T716]  __sys_sendmsg (net/socket.c:2799)
[  104.189889][  T716]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  104.189898][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.189901][  T716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.189905][  T716]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  104.189909][  T716]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  104.189913][  T716]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  104.189916][  T716] RIP: 0033:0x7f66e45e054e
[  104.189920][  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
[  104.189922][  T716] RSP: 002b:00007ffd40443f70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  104.189926][  T716] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f66e45e054e
[  104.189927][  T716] RDX: 0000000000000000 RSI: 00007ffd40444020 RDI: 0000000000000005
[  104.189928][  T716] RBP: 00007ffd40443f80 R08: 0000000000000000 R09: 0000000000000000
[  104.189929][  T716] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912ce7


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