======================================
| [   21.866779][  T351] softirqs last disabled at (3514): ovpn_peer_release_p2p (./include/linux/spinlock.h:353 drivers/net/ovpn/peer.c:1243) ovpn
| [   21.866783][  T351] Preemption disabled at:
| [   21.866783][  T351] 0x0
| [   21.866794][  T351] Tainted: [W]=WARN
[   21.866795][  T351] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.866796][  T351] Call Trace:
[   21.866798][  T351]  <TASK>
[   21.866800][  T351]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.866806][  T351]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.866811][  T351]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.866815][  T351]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.866820][  T351]  __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))
[   21.866823][  T351]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.866828][  T351]  ? 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)
[   21.866832][  T351]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.866835][  T351]  put_chars (drivers/char/virtio_console.c:1176)
[   21.866838][  T351]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.866845][  T351]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.866852][  T351]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.866854][  T351]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.866859][  T351]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.866863][  T351]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.866864][  T351]  ? 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))
[   21.866868][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.866872][  T351]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.866876][  T351]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.866881][  T351]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.866883][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.866888][  T351]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.866891][  T351]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.866893][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.866895][  T351]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   21.866899][  T351]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.866901][  T351]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.866904][  T351]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.866908][  T351]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.866911][  T351]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.866915][  T351]  _printk (kernel/printk/printk.c:2504)
[   21.866919][  T351]  ? snapshot_read.cold (user.c:?)
[   21.866921][  T351]  ? try_to_wake_up (./include/linux/preempt.h:500 (discriminator 1) kernel/sched/core.c:4263 (discriminator 1))
[   21.866924][  T351]  ? select_fallback_rq (kernel/sched/sched.h:1424)
[   21.866926][  T351]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   21.866930][  T351]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   21.866933][  T351]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   21.866935][  T351]  ? netdev_notice (net/core/dev.c:13194)
[   21.866938][  T351]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   21.866941][  T351]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   21.866942][  T351]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   21.866945][  T351]  ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:167)
[   21.866947][  T351]  ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:167)
[   21.866948][  T351]  ? lockdep_hardirqs_off (kernel/locking/lockdep.c:4527)
[   21.866950][  T351]  ? irqentry_enter (./include/linux/irq-entry-common.h:439 kernel/entry/common.c:120)
[   21.866954][  T351] ovpn_nl_peer_del_notify (drivers/net/ovpn/netlink.c:1173) ovpn
[   21.866959][  T351]  ? ovpn_nl_key_new_doit.cold (drivers/net/ovpn/netlink.c:958 (discriminator 13)) ovpn
[   21.866962][  T351]  ? queue_delayed_work_on (kernel/workqueue.c:2673 (discriminator 6))
[   21.866966][  T351]  ? queue_delayed_work_on (kernel/workqueue.c:2675)
[   21.866971][  T351] ovpn_peer_remove (drivers/net/ovpn/peer.c:716) ovpn
[   21.866974][  T351]  ? 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)
[   21.866977][  T351]  ? __ovpn_peer_hash_transp_addr (drivers/net/ovpn/peer.c:943) ovpn
[   21.866979][  T351]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   21.866985][  T351] ovpn_peer_release_p2p (drivers/net/ovpn/peer.c:1259) ovpn
[   21.866988][  T351]  ? ovpn_peer_remove (./include/linux/list_nulls.h:111 (discriminator 2)) ovpn
[   21.866992][  T351]  ? ovpn_udp_encap_destroy (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) drivers/net/ovpn/udp.c:368 (discriminator 2)) ovpn
[   21.866998][  T351]  udpv6_destroy_sock (net/ipv6/udp.c:1811 net/ipv6/udp.c:1796)
[   21.867001][  T351]  sk_common_release (net/core/sock.c:4042)
[   21.867004][  T351]  inet_release (net/ipv4/af_inet.c:448)
[   21.867008][  T351]  ? fcntl_setlk (fs/locks.c:2552)
[   21.867013][  T351]  __sock_release (net/socket.c:735)
[   21.867016][  T351]  sock_close (net/socket.c:1526 (discriminator 1))
[   21.867018][  T351]  __fput (fs/file_table.c:512)
[   21.867021][  T351]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   21.867023][  T351]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3206 (discriminator 6))
[   21.867025][  T351]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.867028][  T351]  ? 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)
[   21.867031][  T351]  task_work_run (kernel/task_work.c:233)
[   21.867033][  T351]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   21.867035][  T351]  ? task_work_cancel (kernel/task_work.c:190)
[   21.867038][  T351]  ? kmem_cache_free (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6626)
[   21.867042][  T351]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:1008)
[   21.867045][  T351]  ? exit_notify (kernel/exit.c:780)
[   21.867047][  T351]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.867050][  T351]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.867051][  T351]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   21.867055][  T351]  do_group_exit (kernel/exit.c:1151)
[   21.867056][  T351]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   21.867058][  T351]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   21.867060][  T351]  ? _raw_spin_unlock_irq (./include/linux/spinlock_api_smp.h:219 kernel/locking/spinlock.c:229)
[   21.867061][  T351]  ? _raw_spin_unlock_irq (./include/linux/spinlock_api_smp.h:220 (discriminator 1) kernel/locking/spinlock.c:229 (discriminator 1))
[   21.867063][  T351]  get_signal (kernel/signal.c:3039)
[   21.867069][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.867071][  T351]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.867074][  T351]  ? ptrace_signal (./include/linux/signal.h:87)
[   21.867076][  T351]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   21.867079][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.867081][  T351]  ? trace_sched_exit_tp (./include/trace/events/sched.h:886 (discriminator 22))
[   21.867086][  T351]  arch_do_signal_or_restart (arch/x86/kernel/signal.c:337)
[   21.867089][  T351]  ? get_sigframe_size (arch/x86/kernel/signal.c:233)
[   21.867091][  T351]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.867096][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.867098][  T351]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.867101][  T351]  exit_to_user_mode_loop (kernel/entry/common.c:66 kernel/entry/common.c:101)
[   21.867103][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.867107][  T351]  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)
[   21.867110][  T351]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.867112][  T351]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.867114][  T351] RIP: 0033:0x7f125c5b054e
[   21.867116][  T351] Code: Unable to access opcode bytes at 0x7f125c5b0524.

Code starting with the faulting instruction
===========================================
[   21.867118][  T351] RSP: 002b:00007ffeba3067b0 EFLAGS: 00000202 ORIG_RAX: 0000000000000022
[   21.867120][  T351] RAX: fffffffffffffdfe RBX: 0000000000000000 RCX: 00007f125c5b054e
[   21.867122][  T351] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   21.867123][  T351] RBP: 00007ffeba3067c0 R08: 0000000000000000 R09: 0000000000000000
[   21.867123][  T351] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffeba306d48


Finger prints:
ovpn_peer_release_p2p:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print