======================================
| [   26.177964][  T318] softirqs last disabled at (23171): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   26.177966][  T318] Preemption disabled at:
| [   26.177967][  T318] vprintk_emit (kernel/printk/printk.c:2471)
| [   26.177975][  T318] Tainted: [W]=WARN
[   26.177976][  T318] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.177977][  T318] Call Trace:
[   26.177979][  T318]  <TASK>
[   26.177980][  T318]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.177986][  T318]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   26.177988][  T318]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.177992][  T318]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.177996][  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)
[   26.178001][  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))
[   26.178002][  T318]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.178009][  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)
[   26.178012][  T318]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.178015][  T318]  put_chars (drivers/char/virtio_console.c:1176)
[   26.178017][  T318]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   26.178019][  T318]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.178022][  T318]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.178025][  T318]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.178029][  T318]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.178033][  T318]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.178035][  T318]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.178039][  T318]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.178041][  T318]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   26.178044][  T318]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.178046][  T318]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.178050][  T318]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.178054][  T318]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.178056][  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))
[   26.178059][  T318]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.178060][  T318]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.178064][  T318]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.178068][  T318]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.178070][  T318]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.178075][  T318]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.178078][  T318]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.178079][  T318]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.178081][  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)
[   26.178085][  T318]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.178086][  T318]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.178089][  T318]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.178092][  T318]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.178097][  T318]  ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact
[   26.178099][  T318]  _printk (kernel/printk/printk.c:2504)
[   26.178103][  T318]  ? snapshot_read.cold (user.c:?)
[   26.178112][  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)
[   26.178116][  T318] gact_init_module (net/sched/act_gact.c:180) act_gact
[   26.178118][  T318]  do_one_initcall (init/main.c:1357)
[   26.178120][  T318]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   26.178125][  T318]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   26.178127][  T318]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   26.178133][  T318]  do_init_module (kernel/module/main.c:3117)
[   26.178136][  T318]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.178140][  T318]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   26.178142][  T318]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   26.178146][  T318]  load_module (kernel/module/main.c:3593)
[   26.178151][  T318]  ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11))
[   26.178155][  T318]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   26.178158][  T318]  ? __ia32_sys_fsconfig (??:?)
[   26.178162][  T318]  ? backing_file_read_iter (fs/backing-file.c:211)
[   26.178166][  T318]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.178169][  T318]  init_module_from_file (kernel/module/main.c:3790)
[   26.178172][  T318]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   26.178179][  T318]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.178183][  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)
[   26.178185][  T318]  idempotent_init_module (kernel/module/main.c:3802)
[   26.178188][  T318]  ? init_module_from_file (kernel/module/main.c:3791)
[   26.178193][  T318]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   26.178196][  T318]  ? __x64_sys_pread64 (fs/read_write.c:764 fs/read_write.c:772 fs/read_write.c:769 fs/read_write.c:769)
[   26.178201][  T318]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   26.178202][  T318]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.178206][  T318]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   26.178209][  T318]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   26.178211][  T318]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.178213][  T318] RIP: 0033:0x7f5945a5237d
[   26.178217][  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
[   26.178218][  T318] RSP: 002b:00007ffe320ff8c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   26.178221][  T318] RAX: ffffffffffffffda RBX: 00005593528a5810 RCX: 00007f5945a5237d
[   26.178222][  T318] RDX: 0000000000000000 RSI: 0000559341dc0ffd RDI: 0000000000000000
[   26.178223][  T318] RBP: 00007ffe320ff960 R08: 0000000000000000 R09: 0000000000000000
[   26.178224][  T318] R10: 0000000000000000 R11: 0000000000000246 R12: 0000559341dc0ffd
[   26.178225][  T318] R13: 00005593528a5960 R14: 0000000000040000 R15: 0000000000000000
| [   42.331954][  T394] softirqs last disabled at (15406): neigh_forced_gc (./include/linux/spinlock.h:353 net/core/neighbour.c:265)
| [   42.331956][  T394] Preemption disabled at:
| [   42.331957][  T394] vprintk_emit (kernel/printk/printk.c:2471)
| [   42.331965][  T394] Tainted: [W]=WARN
[   42.331966][  T394] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   42.331968][  T394] Call Trace:
[   42.331969][  T394]  <TASK>
[   42.331971][  T394]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   42.331976][  T394]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   42.331978][  T394]  __might_resched.cold (kernel/sched/core.c:9234)
[   42.331983][  T394]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   42.331986][  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)
[   42.331991][  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))
[   42.331993][  T394]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   42.331999][  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)
[   42.332002][  T394]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   42.332005][  T394]  put_chars (drivers/char/virtio_console.c:1176)
[   42.332008][  T394]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   42.332011][  T394]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   42.332016][  T394]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   42.332020][  T394]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.332026][  T394]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   42.332029][  T394]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.332034][  T394]  console_emit_next_record (kernel/printk/printk.c:3183)
[   42.332038][  T394]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   42.332040][  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))
[   42.332043][  T394]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.332045][  T394]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.332049][  T394]  console_flush_one_record (kernel/printk/printk.c:3268)
[   42.332053][  T394]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   42.332055][  T394]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.332060][  T394]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   42.332063][  T394]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   42.332065][  T394]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.332067][  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)
[   42.332070][  T394]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   42.332072][  T394]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   42.332075][  T394]  vprintk_emit (kernel/printk/printk.c:2479)
[   42.332078][  T394]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   42.332080][  T394]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.332084][  T394]  _printk (kernel/printk/printk.c:2504)
[   42.332088][  T394]  ? snapshot_read.cold (user.c:?)
[   42.332089][  T394]  ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3))
[   42.332095][  T394]  ? idr_get_free (??:?)
[   42.332097][  T394]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.332101][  T394]  neigh_alloc.cold (net/core/neighbour.c:510 (discriminator 3))
[   42.332106][  T394]  ___neigh_create (net/core/neighbour.c:652)
[   42.332112][  T394]  neigh_add (net/core/neighbour.c:2129)
[   42.332114][  T394]  ? __mutex_lock (kernel/locking/mutex.c:112 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   42.332117][  T394]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:80 net/core/rtnetlink.c:7138)
[   42.332119][  T394]  ? pneigh_create (./include/linux/netdevice.h:4505 (discriminator 31))
[   42.332131][  T394]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7141)
[   42.332134][  T394]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   42.332136][  T394]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.332140][  T394]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.332142][  T394]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.332146][  T394]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   42.332149][  T394]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   42.332152][  T394]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   42.332159][  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))
[   42.332160][  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))
[   42.332194][  T394]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   42.332198][  T394]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   42.332200][  T394]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   42.332202][  T394]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   42.332205][  T394]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6))
[   42.332210][  T394]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   42.332213][  T394]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   42.332217][  T394]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.332219][  T394]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   42.332224][  T394]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   42.332229][  T394]  ____sys_sendmsg (net/socket.c:2713)
[   42.332231][  T394]  ? copy_msghdr_from_user (net/socket.c:2650)
[   42.332233][  T394]  ? sock_write_iter (net/socket.c:1269)
[   42.332235][  T394]  ? move_addr_to_kernel (net/socket.c:258)
[   42.332242][  T394]  ___sys_sendmsg (net/socket.c:2767)
[   42.332245][  T394]  ? copy_msghdr_from_user (net/socket.c:2619)
[   42.332247][  T394]  ? kfree (mm/slub.c:6778 (discriminator 1))
[   42.332261][  T394]  __sys_sendmsg (net/socket.c:2799)
[   42.332264][  T394]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   42.332269][  T394]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.332271][  T394]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.332274][  T394]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   42.332276][  T394]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   42.332279][  T394]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   42.332281][  T394] RIP: 0033:0x7f475fe1f54e
[   42.332285][  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
[   42.332287][  T394] RSP: 002b:00007ffeff2bcc90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   42.332289][  T394] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f475fe1f54e
[   42.332291][  T394] RDX: 0000000000000000 RSI: 00007ffeff2bcd40 RDI: 0000000000000005
[   42.332291][  T394] RBP: 00007ffeff2bcca0 R08: 0000000000000000 R09: 0000000000000000
[   42.332292][  T394] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91be95
[   42.332293][  T394] R13: 00000000004a1620 R14: 0000000000000000 R15: 0000000000000000
| [   77.607546][  T565] softirqs last disabled at (20569): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   77.607548][  T565] Preemption disabled at:
| [   77.607549][  T565] 0x0
| [   77.607559][  T565] Tainted: [W]=WARN
[   77.607560][  T565] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   77.607561][  T565] Call Trace:
[   77.607563][  T565]  <TASK>
[   77.607564][  T565]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   77.607572][  T565]  __might_resched.cold (kernel/sched/core.c:9234)
[   77.607576][  T565]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   77.607580][  T565]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   77.607584][  T565]  __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))
[   77.607586][  T565]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   77.607592][  T565]  ? 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)
[   77.607595][  T565]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   77.607598][  T565]  put_chars (drivers/char/virtio_console.c:1176)
[   77.607601][  T565]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   77.607602][  T565]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   77.607605][  T565]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   77.607610][  T565]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   77.607618][  T565]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   77.607621][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   77.607622][  T565]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   77.607626][  T565]  console_emit_next_record (kernel/printk/printk.c:3183)
[   77.607630][  T565]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   77.607632][  T565]  ? 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))
[   77.607635][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   77.607637][  T565]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   77.607641][  T565]  console_flush_one_record (kernel/printk/printk.c:3268)
[   77.607645][  T565]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   77.607647][  T565]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   77.607652][  T565]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   77.607654][  T565]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   77.607656][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   77.607658][  T565]  ? 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)
[   77.607662][  T565]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   77.607663][  T565]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   77.607666][  T565]  vprintk_emit (kernel/printk/printk.c:2479)
[   77.607669][  T565]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   77.607672][  T565]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   77.607676][  T565]  _printk (kernel/printk/printk.c:2504)
[   77.607679][  T565]  ? snapshot_read.cold (user.c:?)
[   77.607682][  T565]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   77.607684][  T565]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   77.607688][  T565]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   77.607691][  T565]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   77.607694][  T565]  ? exit_notify (kernel/exit.c:780)
[   77.607696][  T565]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   77.607699][  T565]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   77.607702][  T565]  do_group_exit (kernel/exit.c:1151)
[   77.607705][  T565]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   77.607707][  T565]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   77.607709][  T565]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   77.607713][  T565]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   77.607716][  T565]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   77.607718][  T565] RIP: 0033:0x7fc4b29131b8
[   77.607720][  T565] Code: Unable to access opcode bytes at 0x7fc4b291318e.

Code starting with the faulting instruction
===========================================
[   77.607721][  T565] RSP: 002b:00007ffe4c87fe78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   77.607723][  T565] RAX: ffffffffffffffda RBX: 00007fc4b2a43f88 RCX: 00007fc4b29131b8
[   77.607725][  T565] RDX: 00007fc4b265dfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   77.607726][  T565] RBP: 00007ffe4c87fed0 R08: 0000000000000000 R09: 0000000000008010
[   77.607726][  T565] R10: 00007ffe4c87fc90 R11: 0000000000000246 R12: 0000000000000001
[   77.607727][  T565] R13: 0000000000000000 R14: 00007fc4b2a42680 R15: 00007fc4b2a43fa0
| [  103.806553][  T714] softirqs last disabled at (15900): neigh_forced_gc (./include/linux/spinlock.h:353 net/core/neighbour.c:265)
| [  103.806556][  T714] Preemption disabled at:
| [  103.806556][  T714] vprintk_emit (kernel/printk/printk.c:2471)
| [  103.806565][  T714] Tainted: [W]=WARN
[  103.806565][  T714] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  103.806567][  T714] Call Trace:
[  103.806568][  T714]  <TASK>
[  103.806570][  T714]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  103.806576][  T714]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  103.806578][  T714]  __might_resched.cold (kernel/sched/core.c:9234)
[  103.806582][  T714]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  103.806586][  T714]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  103.806590][  T714]  __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))
[  103.806592][  T714]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  103.806599][  T714]  ? 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)
[  103.806601][  T714]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  103.806605][  T714]  put_chars (drivers/char/virtio_console.c:1176)
[  103.806608][  T714]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  103.806609][  T714]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  103.806612][  T714]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  103.806615][  T714]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  103.806620][  T714]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  103.806624][  T714]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  103.806629][  T714]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  103.806632][  T714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.806637][  T714]  console_emit_next_record (kernel/printk/printk.c:3183)
[  103.806641][  T714]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  103.806642][  T714]  ? 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))
[  103.806646][  T714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.806647][  T714]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  103.806651][  T714]  console_flush_one_record (kernel/printk/printk.c:3268)
[  103.806655][  T714]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  103.806657][  T714]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  103.806663][  T714]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  103.806665][  T714]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  103.806667][  T714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.806669][  T714]  ? 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)
[  103.806673][  T714]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  103.806674][  T714]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  103.806677][  T714]  vprintk_emit (kernel/printk/printk.c:2479)
[  103.806680][  T714]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  103.806682][  T714]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  103.806687][  T714]  _printk (kernel/printk/printk.c:2504)
[  103.806690][  T714]  ? snapshot_read.cold (user.c:?)
[  103.806692][  T714]  ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3))
[  103.806698][  T714]  ? idr_get_free (??:?)
[  103.806699][  T714]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  103.806703][  T714]  neigh_alloc.cold (net/core/neighbour.c:510 (discriminator 3))
[  103.806709][  T714]  ___neigh_create (net/core/neighbour.c:652)
[  103.806714][  T714]  neigh_add (net/core/neighbour.c:2129)
[  103.806716][  T714]  ? __mutex_lock (kernel/locking/mutex.c:112 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  103.806719][  T714]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:80 net/core/rtnetlink.c:7138)
[  103.806721][  T714]  ? pneigh_create (./include/linux/netdevice.h:4505 (discriminator 31))
[  103.806733][  T714]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7141)
[  103.806736][  T714]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  103.806738][  T714]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  103.806742][  T714]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  103.806744][  T714]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  103.806748][  T714]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  103.806751][  T714]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  103.806754][  T714]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  103.806761][  T714]  ? 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))
[  103.806763][  T714]  ? 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))
[  103.806767][  T714]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  103.806771][  T714]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  103.806774][  T714]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[  103.806775][  T714]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[  103.806778][  T714]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6))
[  103.806783][  T714]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  103.806787][  T714]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  103.806791][  T714]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  103.806792][  T714]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  103.806798][  T714]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  103.806802][  T714]  ____sys_sendmsg (net/socket.c:2713)
[  103.806804][  T714]  ? copy_msghdr_from_user (net/socket.c:2650)
[  103.806807][  T714]  ? sock_write_iter (net/socket.c:1269)
[  103.806808][  T714]  ? move_addr_to_kernel (net/socket.c:258)
[  103.806816][  T714]  ___sys_sendmsg (net/socket.c:2767)
[  103.806818][  T714]  ? copy_msghdr_from_user (net/socket.c:2619)
[  103.806820][  T714]  ? kfree (mm/slub.c:6778 (discriminator 1))
[  103.806835][  T714]  __sys_sendmsg (net/socket.c:2799)
[  103.806838][  T714]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  103.806844][  T714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.806845][  T714]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.806848][  T714]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  103.806851][  T714]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  103.806854][  T714]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  103.806856][  T714] RIP: 0033:0x7fa74255254e
[  103.806859][  T714] 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
[  103.806861][  T714] RSP: 002b:00007ffc935da140 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  103.806864][  T714] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa74255254e
[  103.806865][  T714] RDX: 0000000000000000 RSI: 00007ffc935da1f0 RDI: 0000000000000005
[  103.806866][  T714] RBP: 00007ffc935da150 R08: 0000000000000000 R09: 0000000000000000
[  103.806867][  T714] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91bed3


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