======================================
| [   16.273651][  T364] softirqs last disabled at (0): 0x0
| [   16.273653][  T364] Preemption disabled at:
| [   16.273653][  T364] 0x0
| [   16.273661][  T364] Tainted: [W]=WARN
[   16.273662][  T364] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.273664][  T364] Call Trace:
[   16.273665][  T364]  <TASK>
[   16.273667][  T364]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.273672][  T364]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.273676][  T364]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.273679][  T364]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.273683][  T364]  __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))
[   16.273687][  T364]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   16.273689][  T364]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.273694][  T364]  ? 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)
[   16.273695][  T364]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.273697][  T364]  put_chars (drivers/char/virtio_console.c:1176)
[   16.273699][  T364]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.273700][  T364]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   16.273703][  T364]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   16.273705][  T364]  ? pointer (lib/vsprintf.c:2577)
[   16.273708][  T364]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.273712][  T364]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.273713][  T364]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   16.273715][  T364]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.273717][  T364]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.273719][  T364]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.273721][  T364]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.273723][  T364]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.273724][  T364]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.273726][  T364]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.273728][  T364]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   16.273729][  T364]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.273732][  T364]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.273734][  T364]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.273736][  T364]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.273737][  T364]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.273739][  T364]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.273740][  T364]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   16.273742][  T364]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.273743][  T364]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   16.273745][  T364]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.273747][  T364]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.273749][  T364]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.273751][  T364]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.273753][  T364]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.273754][  T364]  ? trace_sched_wakeup (./include/trace/events/sched.h:178 (discriminator 22))
[   16.273757][  T364]  _printk (kernel/printk/printk.c:2504)
[   16.273760][  T364]  ? snapshot_read.cold (user.c:?)
[   16.273761][  T364]  ? try_to_wake_up (./include/linux/preempt.h:500 (discriminator 1) kernel/sched/core.c:4263 (discriminator 1))
[   16.273763][  T364]  ? select_fallback_rq (kernel/sched/sched.h:1424)
[   16.273765][  T364]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   16.273767][  T364]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   16.273769][  T364]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   16.273770][  T364]  ? netdev_notice (net/core/dev.c:13194)
[   16.273772][  T364]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.273774][  T364]  ? __queue_work (./include/linux/rcupdate.h:882 kernel/workqueue.c:2459)
[   16.273777][  T364]  ? trace_irq_enable.constprop.0 (./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/preemptirq.h:40)
[   16.273780][  T364] ovpn_nl_peer_del_notify (drivers/net/ovpn/netlink.c:1173) ovpn
[   16.273785][  T364]  ? ovpn_nl_key_new_doit.cold (drivers/net/ovpn/netlink.c:958 (discriminator 13)) ovpn
[   16.273787][  T364]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.273789][  T364]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.273791][  T364] ovpn_peer_remove (drivers/net/ovpn/peer.c:716) ovpn
[   16.273795][  T364]  ? 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)
[   16.273796][  T364]  ? __ovpn_peer_hash_transp_addr (drivers/net/ovpn/peer.c:943) ovpn
[   16.273799][  T364]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   16.273801][  T364] ovpn_peer_release_p2p (drivers/net/ovpn/peer.c:1259) ovpn
[   16.273804][  T364]  ? ovpn_peer_remove (./include/linux/list_nulls.h:111 (discriminator 2)) ovpn
[   16.273806][  T364]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.273808][  T364]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   16.273810][  T364]  udpv6_destroy_sock (net/ipv6/udp.c:1811 net/ipv6/udp.c:1796)
[   16.273813][  T364]  sk_common_release (net/core/sock.c:4042)
[   16.273816][  T364]  inet_release (net/ipv4/af_inet.c:448)
[   16.273819][  T364]  ? fcntl_setlk (fs/locks.c:2552)
[   16.273822][  T364]  __sock_release (net/socket.c:735)
[   16.273825][  T364]  sock_close (net/socket.c:1526 (discriminator 1))
[   16.273827][  T364]  __fput (fs/file_table.c:512)
[   16.273829][  T364]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   16.273830][  T364]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.273831][  T364]  ? 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)
[   16.273833][  T364]  task_work_run (kernel/task_work.c:233)
[   16.273835][  T364]  ? task_work_cancel (kernel/task_work.c:190)
[   16.273836][  T364]  ? kmem_cache_free (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6626)
[   16.273838][  T364]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:1008)
[   16.273840][  T364]  ? exit_notify (kernel/exit.c:780)
[   16.273841][  T364]  ? 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)
[   16.273843][  T364]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   16.273845][  T364]  do_group_exit (kernel/exit.c:1151)
[   16.273846][  T364]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   16.273847][  T364]  ? _raw_spin_unlock_irq (./include/linux/spinlock_api_smp.h:220 (discriminator 1) kernel/locking/spinlock.c:229 (discriminator 1))
[   16.273849][  T364]  get_signal (kernel/signal.c:3039)
[   16.273852][  T364]  ? kmem_cache_free (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6626)
[   16.273854][  T364]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.273856][  T364]  ? ptrace_signal (./include/linux/signal.h:87)
[   16.273857][  T364]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   16.273860][  T364]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.273861][  T364]  ? trace_sched_exit_tp (./include/trace/events/sched.h:886 (discriminator 22))
[   16.273863][  T364]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[   16.273865][  T364]  ? get_sigframe_size (arch/x86/kernel/signal.c:233)
[   16.273868][  T364]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.273869][  T364]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   16.273871][  T364]  exit_to_user_mode_loop (kernel/entry/common.c:66 kernel/entry/common.c:101)
[   16.273873][  T364]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.273875][  T364]  do_syscall_64 (./include/linux/irq-entry-common.h:207 ./include/linux/irq-entry-common.h:230 ./include/linux/entry-common.h:336 arch/x86/entry/syscall_64.c:89)
[   16.273877][  T364]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.273879][  T364]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.273881][  T364] RIP: 0033:0x7f7f4bc3f54e
[   16.273883][  T364] Code: Unable to access opcode bytes at 0x7f7f4bc3f524.

Code starting with the faulting instruction
===========================================
[   16.273884][  T364] RSP: 002b:00007fffe4ec4a40 EFLAGS: 00000202 ORIG_RAX: 0000000000000022
[   16.273887][  T364] RAX: fffffffffffffdfe RBX: 0000000000000000 RCX: 00007f7f4bc3f54e
[   16.273888][  T364] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   16.273889][  T364] RBP: 00007fffe4ec4a50 R08: 0000000000000000 R09: 0000000000000000
[   16.273890][  T364] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffe4ec4fd8


Finger prints:
__kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record:console_flush_one_record