======================================
| [   12.165149][  T261] softirqs last disabled at (27849): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.165151][  T261] Preemption disabled at:
| [   12.165152][  T261] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.165161][  T261] Tainted: [W]=WARN
[   12.165162][  T261] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.165164][  T261] Call Trace:
[   12.165166][  T261]  <TASK>
[   12.165167][  T261]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.165173][  T261]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.165175][  T261]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.165179][  T261]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.165183][  T261]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.165189][  T261]  __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))
[   12.165191][  T261]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.165197][  T261]  ? 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)
[   12.165200][  T261]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.165203][  T261]  put_chars (drivers/char/virtio_console.c:1176)
[   12.165205][  T261]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   12.165207][  T261]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.165210][  T261]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.165213][  T261]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.165218][  T261]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.165220][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.165222][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.165226][  T261]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.165228][  T261]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.165231][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.165234][  T261]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.165238][  T261]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.165242][  T261]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.165243][  T261]  ? 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))
[   12.165246][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.165249][  T261]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.165253][  T261]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.165257][  T261]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.165258][  T261]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.165263][  T261]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.165266][  T261]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.165268][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.165270][  T261]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.165274][  T261]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.165276][  T261]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.165279][  T261]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.165283][  T261]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.165288][  T261]  ? gre_exit (net/ipv4/gre_demux.c:73) gre
[   12.165292][  T261]  _printk (kernel/printk/printk.c:2504)
[   12.165295][  T261]  ? snapshot_read.cold (user.c:?)
[   12.165301][  T261]  ? 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)
[   12.165304][  T261] gre_init (gre.mod.c:?) gre
[   12.165307][  T261]  do_one_initcall (init/main.c:1357)
[   12.165309][  T261]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   12.165314][  T261]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   12.165317][  T261]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   12.165322][  T261]  do_init_module (kernel/module/main.c:3117)
[   12.165326][  T261]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.165330][  T261]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   12.165333][  T261]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   12.165337][  T261]  load_module (kernel/module/main.c:3593)
[   12.165344][  T261]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   12.165349][  T261]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.165352][  T261]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.165356][  T261]  init_module_from_file (kernel/module/main.c:3790)
[   12.165359][  T261]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   12.165366][  T261]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.165370][  T261]  ? 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)
[   12.165373][  T261]  idempotent_init_module (kernel/module/main.c:3802)
[   12.165376][  T261]  ? init_module_from_file (kernel/module/main.c:3791)
[   12.165383][  T261]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.165385][  T261]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.165391][  T261]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   12.165393][  T261]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.165397][  T261]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.165399][  T261]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.165402][  T261]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.165404][  T261] RIP: 0033:0x7f03557ea37d
[   12.165407][  T261] 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
[   12.165409][  T261] RSP: 002b:00007ffe6bcbe078 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   12.165412][  T261] RAX: ffffffffffffffda RBX: 000055c8c883ed30 RCX: 00007f03557ea37d
[   12.165413][  T261] RDX: 0000000000000000 RSI: 000055c8964cdffd RDI: 0000000000000000
[   12.165414][  T261] RBP: 00007ffe6bcbe110 R08: 0000000000000000 R09: 0000000000000000
[   12.165415][  T261] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c8964cdffd
[   12.165416][  T261] R13: 000055c8c883ecf0 R14: 0000000000040000 R15: 0000000000000000
| [   12.333052][   T12]  #10: ffffffffad489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
| [   12.333058][   T12]
| [   12.333058][   T12] stack backtrace:
| [   12.333066][   T12] Tainted: [W]=WARN
[   12.333067][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.333070][   T12] Workqueue: ipv6_addrconf addrconf_dad_work
[   12.333074][   T12] Call Trace:
[   12.333076][   T12]  <TASK>
[   12.333079][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.333087][   T12]  lockdep_rcu_suspicious.cold (kernel/locking/lockdep.c:6938)
[   12.333096][   T12]  __might_resched (kernel/sched/core.c:9196 (discriminator 9))
[   12.333102][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.333107][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.333114][   T12]  __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))
[   12.333118][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.333127][   T12]  ? 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)
[   12.333131][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.333136][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   12.333141][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.333146][   T12]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.333156][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.333166][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.333170][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.333175][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.333183][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.333189][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.333192][   T12]  ? 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))
[   12.333198][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.333202][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.333210][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.333219][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.333222][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.333232][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.333237][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.333240][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.333244][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.333251][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.333254][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.333260][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.333266][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.333271][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.333280][   T12]  _printk (kernel/printk/printk.c:2504)
[   12.333285][   T12]  ? snapshot_read.cold (user.c:?)
[   12.333288][   T12]  ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3))
[   12.333298][   T12]  ? idr_get_free (??:?)
[   12.333308][   T12] ip6_tnl_xmit_ctl.cold (net/ipv6/ip6_tunnel.c:1064 (discriminator 3)) ip6_tunnel
[   12.333317][   T12] ip6gre_tunnel_xmit (net/ipv6/ip6_gre.c:889) ip6_gre
[   12.333326][   T12]  ? __gre6_xmit (./include/linux/skbuff.h:2904) ip6_gre
[   12.333331][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.333335][   T12]  ? __bfs (kernel/locking/lockdep.c:1831 (discriminator 2))
[   12.333341][   T12]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.333345][   T12]  ? netif_skb_features (net/core/dev.c:3793 net/core/dev.c:3922)
[   12.333358][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.333362][   T12]  dev_hard_start_xmit (./include/linux/netdevice.h:5429 ./include/linux/netdevice.h:5438 net/core/dev.c:3937 net/core/dev.c:3953)
[   12.333369][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.333375][   T12]  __dev_queue_xmit (net/core/dev.c:4926)
[   12.333382][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.333385][   T12]  ? ip6_ra_control (net/ipv6/ipv6_sockglue.c:78)
[   12.333394][   T12]  ? netdev_core_pick_tx (net/core/dev.c:4784)
[   12.333397][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.333402][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.333404][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.333408][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.333414][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.333417][   T12]  ? __local_bh_enable_ip (kernel/softirq.c:478)
[   12.333421][   T12]  ? __local_bh_enable_ip (kernel/softirq.c:478)
[   12.333424][   T12]  ? ___neigh_create (./include/linux/spinlock.h:407 net/core/neighbour.c:721)
[   12.333436][   T12]  ip6_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv6/ip6_output.c:138 (discriminator 3))
[   12.333444][   T12]  ? ip6_dst_lookup (net/ipv6/ip6_output.c:1269)
[   12.333447][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.333452][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.333458][   T12]  ? ip6_mtu (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/ip6_route.h:384 (discriminator 2) net/ipv6/route.c:3290 (discriminator 2))
[   12.333465][   T12]  ip6_finish_output (net/ipv6/ip6_output.c:210 net/ipv6/ip6_output.c:221)
[   12.333472][   T12]  ip6_output (./include/linux/netfilter.h:314 net/ipv6/ip6_output.c:248)
[   12.333477][   T12]  ? ip6_finish_output (./include/net/inet_sock.h:338 (discriminator 1))
[   12.333481][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.333484][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.333489][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.333491][   T12]  ? __local_bh_enable_ip (kernel/softirq.c:478)
[   12.333499][   T12]  ndisc_send_skb (./include/net/dst.h:470 (discriminator 4) ./include/linux/netfilter.h:325 (discriminator 4) net/ipv6/ndisc.c:513 (discriminator 4))
[   12.333507][   T12]  ? ndisc_recv_na (./include/net/net_namespace.h:422 (discriminator 7))
[   12.333518][   T12]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   12.333527][   T12]  addrconf_dad_completed (net/ipv6/addrconf.c:4396)
[   12.333533][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.333537][   T12]  ? addrconf_rs_timer (net/ipv6/addrconf.c:4092 (discriminator 11))
[   12.333541][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.333544][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.333547][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.333553][   T12]  ? addrconf_dad_begin (net/ipv6/addrconf.c:4158)
[   12.333557][   T12]  addrconf_dad_begin (net/ipv6/addrconf.c:4158)
[   12.333559][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.333564][   T12]  ? addrconf_dad_completed (net/ipv6/addrconf.c:4402)
[   12.333568][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.333570][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.333574][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.333581][   T12]  addrconf_dad_work (net/ipv6/addrconf.c:4263)
[   12.333588][   T12]  ? addrconf_dad_begin (net/ipv6/addrconf.c:4180)
[   12.333594][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.333597][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.333600][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.333603][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.333609][   T12]  process_one_work (kernel/workqueue.c:3387)
[   12.333622][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   12.333626][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.333640][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   12.333653][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   12.333656][   T12]  kthread (kernel/kthread.c:436)
[   12.333659][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.333664][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   12.333668][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   12.333675][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   12.333680][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   12.333685][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   12.333690][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   14.124892][  T321] softirqs last disabled at (15961): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   14.124894][  T321] Preemption disabled at:
| [   14.124895][  T321] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.124904][  T321] Tainted: [W]=WARN
[   14.124905][  T321] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.124907][  T321] Call Trace:
[   14.124909][  T321]  <TASK>
[   14.124910][  T321]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.124916][  T321]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.124918][  T321]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.124923][  T321]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.124927][  T321]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.124932][  T321]  __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))
[   14.124935][  T321]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.124941][  T321]  ? 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)
[   14.124944][  T321]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.124947][  T321]  put_chars (drivers/char/virtio_console.c:1176)
[   14.124949][  T321]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   14.124951][  T321]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.124954][  T321]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.124958][  T321]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.124962][  T321]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.124965][  T321]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.124967][  T321]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.124971][  T321]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.124973][  T321]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   14.124976][  T321]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.124979][  T321]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.124983][  T321]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.124987][  T321]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.124989][  T321]  ? 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))
[   14.124992][  T321]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.124994][  T321]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.124998][  T321]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.125004][  T321]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.125006][  T321]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.125011][  T321]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.125014][  T321]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.125016][  T321]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.125018][  T321]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.125022][  T321]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.125023][  T321]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.125027][  T321]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.125031][  T321]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.125037][  T321]  ? gre_exit (net/ipv4/gre_demux.c:73) gre
[   14.125041][  T321]  _printk (kernel/printk/printk.c:2504)
[   14.125044][  T321]  ? snapshot_read.cold (user.c:?)
[   14.125051][  T321]  ? 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)
[   14.125054][  T321] gact_init_module (net/sched/act_gact.c:180) act_gact
[   14.125056][  T321]  do_one_initcall (init/main.c:1357)
[   14.125059][  T321]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   14.125064][  T321]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   14.125067][  T321]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   14.125072][  T321]  do_init_module (kernel/module/main.c:3117)
[   14.125076][  T321]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   14.125080][  T321]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   14.125083][  T321]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   14.125087][  T321]  load_module (kernel/module/main.c:3593)
[   14.125094][  T321]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   14.125098][  T321]  ? __ia32_sys_fsconfig (??:?)
[   14.125101][  T321]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.125104][  T321]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.125108][  T321]  init_module_from_file (kernel/module/main.c:3790)
[   14.125111][  T321]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   14.125119][  T321]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   14.125123][  T321]  ? 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)
[   14.125126][  T321]  idempotent_init_module (kernel/module/main.c:3802)
[   14.125129][  T321]  ? init_module_from_file (kernel/module/main.c:3791)
[   14.125136][  T321]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.125138][  T321]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   14.125144][  T321]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   14.125146][  T321]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   14.125150][  T321]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.125152][  T321]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.125154][  T321]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.125157][  T321] RIP: 0033:0x7f43c62d837d
[   14.125160][  T321] 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
[   14.125162][  T321] RSP: 002b:00007ffe5f05e358 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   14.125164][  T321] RAX: ffffffffffffffda RBX: 000056042ff96810 RCX: 00007f43c62d837d
[   14.125166][  T321] RDX: 0000000000000000 RSI: 00005603f957cffd RDI: 0000000000000000
[   14.125167][  T321] RBP: 00007ffe5f05e3f0 R08: 0000000000000000 R09: 0000000000000000
[   14.125168][  T321] R10: 0000000000000000 R11: 0000000000000246 R12: 00005603f957cffd


Finger prints:
__might_resched:__kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars