======================================
| [   11.709661][  T263] softirqs last disabled at (18841): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.709663][  T263] Preemption disabled at:
| [   11.709664][  T263] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.709673][  T263] Tainted: [W]=WARN
[   11.709674][  T263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.709676][  T263] Call Trace:
[   11.709677][  T263]  <TASK>
[   11.709679][  T263]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.709685][  T263]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.709687][  T263]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.709692][  T263]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.709696][  T263]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.709701][  T263]  __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))
[   11.709704][  T263]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.709710][  T263]  ? 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)
[   11.709712][  T263]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.709715][  T263]  put_chars (drivers/char/virtio_console.c:1176)
[   11.709717][  T263]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   11.709719][  T263]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.709722][  T263]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.709726][  T263]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.709730][  T263]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.709733][  T263]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.709734][  T263]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.709739][  T263]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.709740][  T263]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.709744][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.709747][  T263]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.709751][  T263]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.709755][  T263]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.709757][  T263]  ? 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))
[   11.709761][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.709764][  T263]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.709768][  T263]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.709772][  T263]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.709774][  T263]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.709779][  T263]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.709782][  T263]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.709784][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.709786][  T263]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.709790][  T263]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.709792][  T263]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.709795][  T263]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.709799][  T263]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.709805][  T263]  ? gre_exit (net/ipv4/gre_demux.c:73) gre
[   11.709807][  T263]  _printk (kernel/printk/printk.c:2504)
[   11.709811][  T263]  ? snapshot_read.cold (user.c:?)
[   11.709817][  T263]  ? 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)
[   11.709821][  T263] gre_init (gre.mod.c:?) gre
[   11.709823][  T263]  do_one_initcall (init/main.c:1357)
[   11.709825][  T263]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.709830][  T263]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.709833][  T263]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.709838][  T263]  do_init_module (kernel/module/main.c:3117)
[   11.709842][  T263]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.709846][  T263]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.709849][  T263]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.709853][  T263]  load_module (kernel/module/main.c:3593)
[   11.709861][  T263]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.709866][  T263]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.709869][  T263]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.709873][  T263]  init_module_from_file (kernel/module/main.c:3790)
[   11.709877][  T263]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.709885][  T263]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.709888][  T263]  ? 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)
[   11.709892][  T263]  idempotent_init_module (kernel/module/main.c:3802)
[   11.709895][  T263]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.709901][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.709904][  T263]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.709910][  T263]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.709912][  T263]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.709916][  T263]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.709918][  T263]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.709921][  T263]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.709923][  T263] RIP: 0033:0x7fbc3e3b437d
[   11.709926][  T263] 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
[   11.709928][  T263] RSP: 002b:00007ffe7a6a4c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.709931][  T263] RAX: ffffffffffffffda RBX: 00005648b9708d30 RCX: 00007fbc3e3b437d
[   11.709932][  T263] RDX: 0000000000000000 RSI: 00005648aa3caffd RDI: 0000000000000000
[   11.709933][  T263] RBP: 00007ffe7a6a4d10 R08: 0000000000000000 R09: 0000000000000000
[   11.709934][  T263] R10: 0000000000000000 R11: 0000000000000246 R12: 00005648aa3caffd
[   11.709935][  T263] R13: 00005648b9708cf0 R14: 0000000000040000 R15: 0000000000000000
| [   11.836546][   T12]  #10: ffffffff8f489560 (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))
| [   11.836550][   T12]
| [   11.836550][   T12] stack backtrace:
| [   11.836556][   T12] Tainted: [W]=WARN
[   11.836557][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.836559][   T12] Workqueue: ipv6_addrconf addrconf_dad_work
[   11.836563][   T12] Call Trace:
[   11.836564][   T12]  <TASK>
[   11.836566][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.836573][   T12]  lockdep_rcu_suspicious.cold (kernel/locking/lockdep.c:6938)
[   11.836579][   T12]  __might_resched (kernel/sched/core.c:9196 (discriminator 9))
[   11.836584][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.836587][   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)
[   11.836592][   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))
[   11.836595][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.836601][   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)
[   11.836604][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.836607][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   11.836609][   T12]  ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3))
[   11.836612][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.836615][   T12]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.836620][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.836627][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.836629][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.836634][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.836638][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.836642][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.836644][   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))
[   11.836648][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.836650][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.836654][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.836659][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.836661][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.836666][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.836670][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.836671][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.836674][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.836678][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.836680][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.836683][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.836687][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.836690][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.836695][   T12]  _printk (kernel/printk/printk.c:2504)
[   11.836698][   T12]  ? snapshot_read.cold (user.c:?)
[   11.836700][   T12]  ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3))
[   11.836707][   T12]  ? idr_get_free (??:?)
[   11.836713][   T12] ip6_tnl_xmit_ctl.cold (net/ipv6/ip6_tunnel.c:1064 (discriminator 3)) ip6_tunnel
[   11.836718][   T12] ip6gre_tunnel_xmit (net/ipv6/ip6_gre.c:888) ip6_gre
[   11.836723][   T12]  ? __gre6_xmit (./include/linux/skbuff.h:2904) ip6_gre
[   11.836726][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.836728][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.836731][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.836734][   T12]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.836736][   T12]  ? netif_skb_features (net/core/dev.c:3793 net/core/dev.c:3922)
[   11.836744][   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)
[   11.836747][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.836751][   T12]  __dev_queue_xmit (net/core/dev.c:4926)
[   11.836755][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.836757][   T12]  ? ipv6_set_opt_hdr (net/ipv6/ipv6_sockglue.c:343 (discriminator 1))
[   11.836765][   T12]  ? netdev_core_pick_tx (net/core/dev.c:4784)
[   11.836767][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.836770][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.836772][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.836774][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.836777][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.836780][   T12]  ? __local_bh_enable_ip (kernel/softirq.c:478)
[   11.836783][   T12]  ? __local_bh_enable_ip (kernel/softirq.c:478)
[   11.836785][   T12]  ? ___neigh_create (./include/linux/spinlock.h:407 net/core/neighbour.c:721)
[   11.836791][   T12]  ip6_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv6/ip6_output.c:138 (discriminator 3))
[   11.836796][   T12]  ? ip6_dst_lookup (net/ipv6/ip6_output.c:1269)
[   11.836798][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.836801][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.836804][   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))
[   11.836809][   T12]  ip6_finish_output (net/ipv6/ip6_output.c:210 net/ipv6/ip6_output.c:221)
[   11.836813][   T12]  ip6_output (./include/linux/netfilter.h:314 net/ipv6/ip6_output.c:248)
[   11.836816][   T12]  ? ip6_finish_output (./include/net/inet_sock.h:338 (discriminator 1))
[   11.836818][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.836820][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.836823][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.836825][   T12]  ? __local_bh_enable_ip (kernel/softirq.c:478)
[   11.836829][   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))
[   11.836834][   T12]  ? ndisc_recv_na (./include/net/net_namespace.h:422 (discriminator 7))
[   11.836841][   T12]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   11.836847][   T12]  addrconf_dad_completed (net/ipv6/addrconf.c:4396)
[   11.836850][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.836853][   T12]  ? addrconf_rs_timer (net/ipv6/addrconf.c:4092 (discriminator 11))
[   11.836856][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.836857][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.836859][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.836863][   T12]  ? addrconf_dad_begin (net/ipv6/addrconf.c:4158)
[   11.836866][   T12]  addrconf_dad_begin (net/ipv6/addrconf.c:4158)
[   11.836868][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.836871][   T12]  ? addrconf_dad_completed (net/ipv6/addrconf.c:4402)
[   11.836873][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.836875][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.836877][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.836881][   T12]  addrconf_dad_work (net/ipv6/addrconf.c:4263)
[   11.836886][   T12]  ? addrconf_dad_begin (net/ipv6/addrconf.c:4180)
[   11.836889][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.836891][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.836893][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.836895][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.836900][   T12]  process_one_work (kernel/workqueue.c:3387)
[   11.836907][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   11.836910][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.836918][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   11.836925][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   11.836927][   T12]  kthread (kernel/kthread.c:436)
[   11.836930][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.836933][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   11.836936][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   11.836940][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   11.836943][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   11.836947][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   11.836950][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   13.337137][  T323] softirqs last disabled at (15847): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   13.337139][  T323] Preemption disabled at:
| [   13.337140][  T323] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.337149][  T323] Tainted: [W]=WARN
[   13.337150][  T323] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.337151][  T323] Call Trace:
[   13.337153][  T323]  <TASK>
[   13.337154][  T323]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.337160][  T323]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.337163][  T323]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.337167][  T323]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.337172][  T323]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.337177][  T323]  __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))
[   13.337179][  T323]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.337186][  T323]  ? 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)
[   13.337188][  T323]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.337191][  T323]  put_chars (drivers/char/virtio_console.c:1176)
[   13.337193][  T323]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   13.337196][  T323]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.337199][  T323]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.337202][  T323]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.337207][  T323]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.337209][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.337211][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.337216][  T323]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.337217][  T323]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.337221][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.337223][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.337228][  T323]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.337231][  T323]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.337233][  T323]  ? 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))
[   13.337237][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.337239][  T323]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.337243][  T323]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.337247][  T323]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.337249][  T323]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.337255][  T323]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.337258][  T323]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.337259][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.337262][  T323]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.337266][  T323]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.337267][  T323]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.337271][  T323]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.337275][  T323]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.337281][  T323]  ? gre_exit (net/ipv4/gre_demux.c:73) gre
[   13.337284][  T323]  _printk (kernel/printk/printk.c:2504)
[   13.337288][  T323]  ? snapshot_read.cold (user.c:?)
[   13.337294][  T323]  ? 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)
[   13.337297][  T323] gact_init_module (net/sched/act_gact.c:180) act_gact
[   13.337300][  T323]  do_one_initcall (init/main.c:1357)
[   13.337303][  T323]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   13.337307][  T323]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   13.337310][  T323]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   13.337315][  T323]  do_init_module (kernel/module/main.c:3117)
[   13.337319][  T323]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   13.337323][  T323]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   13.337327][  T323]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   13.337331][  T323]  load_module (kernel/module/main.c:3593)
[   13.337338][  T323]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   13.337342][  T323]  ? __ia32_sys_fsconfig (??:?)
[   13.337345][  T323]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   13.337349][  T323]  ? backing_file_read_iter (fs/backing-file.c:211)
[   13.337352][  T323]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.337356][  T323]  init_module_from_file (kernel/module/main.c:3790)
[   13.337360][  T323]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   13.337368][  T323]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   13.337371][  T323]  ? 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)
[   13.337375][  T323]  idempotent_init_module (kernel/module/main.c:3802)
[   13.337378][  T323]  ? init_module_from_file (kernel/module/main.c:3791)
[   13.337385][  T323]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.337387][  T323]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   13.337393][  T323]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   13.337395][  T323]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.337399][  T323]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.337401][  T323]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.337404][  T323]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.337406][  T323] RIP: 0033:0x7f4d8dbe037d
[   13.337409][  T323] 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
[   13.337411][  T323] RSP: 002b:00007fff09b22ff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   13.337414][  T323] RAX: ffffffffffffffda RBX: 000055843415d810 RCX: 00007f4d8dbe037d
[   13.337415][  T323] RDX: 0000000000000000 RSI: 000055842d1c5ffd RDI: 0000000000000000
[   13.337416][  T323] RBP: 00007fff09b23090 R08: 0000000000000000 R09: 0000000000000000
[   13.337417][  T323] R10: 0000000000000000 R11: 0000000000000246 R12: 000055842d1c5ffd


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