[   18.603928][   T12] tun0: no available key for peer 4, key-id: 0
[   18.604180][   T12] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/12
[   18.604382][   T12] caller is ovpn_recv+0x192/0x2a0 [ovpn]
[   18.604507][   T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.0.0-rc6-virtme #1 PREEMPT(full) 
[   18.604511][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.604513][   T12] Workqueue: kstrp strp_work
[   18.604520][   T12] Call Trace:
[   18.604522][   T12]  <TASK>
[   18.604524][   T12]  dump_stack_lvl+0x6f/0xa0
[   18.604530][   T12]  check_preemption_disabled+0xdb/0xf0
[   18.604535][   T12]  ovpn_recv+0x192/0x2a0 [ovpn]
[   18.604540][   T12]  ovpn_tcp_rcv+0x277/0x920 [ovpn]
[   18.604544][   T12]  ? ovpn_tcp_write_space+0x2b0/0x2b0 [ovpn]
[   18.604548][   T12]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[   18.604551][   T12]  ? skb_copy_and_csum_bits+0x210/0x8e0
[   18.604557][   T12]  __strp_recv+0x1ec/0x1bb0
[   18.604561][   T12]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[   18.604567][   T12]  __tcp_read_sock+0x1a1/0x7c0
[   18.604572][   T12]  ? strp_process+0xb0/0xb0
[   18.604575][   T12]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[   18.604580][   T12]  strp_read_sock+0x20f/0x2b0
[   18.604583][   T12]  ? strp_stop+0x50/0x50
[   18.604585][   T12]  ? __lock_release.isra.0+0x59/0x170
[   18.604590][   T12]  ? lockdep_hardirqs_on+0x84/0x130
[   18.604592][   T12]  ? __local_bh_enable_ip+0xa3/0x140
[   18.604596][   T12]  strp_work+0x9f/0xe0
[   18.604598][   T12]  process_one_work+0xdf6/0x1410
[   18.604605][   T12]  ? pwq_dec_nr_in_flight+0x700/0x700
[   18.604607][   T12]  ? lock_acquire.part.0+0xbc/0x260
[   18.604614][   T12]  worker_thread+0x4eb/0xd60
[   18.604621][   T12]  ? rescuer_thread+0x1340/0x1340
[   18.604623][   T12]  kthread+0x30f/0x3f0
[   18.604626][   T12]  ? trace_irq_enable.constprop.0+0x13c/0x190
[   18.604630][   T12]  ? kthread_affine_node+0x150/0x150
[   18.604633][   T12]  ret_from_fork+0x472/0x6b0
[   18.604637][   T12]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[   18.604640][   T12]  ? __switch_to+0x538/0xcf0
[   18.604643][   T12]  ? kthread_affine_node+0x150/0x150
[   18.604646][   T12]  ret_from_fork_asm+0x11/0x20
[   18.604654][   T12]  </TASK>
[   36.520751][  T457] iperf3 (457) used greatest stack depth: 23240 bytes left
[   38.608945][  T482] tun0: deleting peer with id 1, reason 1
[   38.653133][  T483] tun1: deleting peer with id 10, reason 1
[   41.163273][  T497] tun0: deleting peer with id 2, reason 1
[   41.214204][  T498] tun2: deleting peer with id 11, reason 1
[   44.888372][   T10] tun0: deleting peer with id 4, reason 2
[   44.888875][   T10] tun0: deleting peer with id 3, reason 2
[   44.889113][   T10] tun0: deleting peer with id 5, reason 2
[   44.889328][   T10] tun0: deleting peer with id 6, reason 2
[   50.008433][   T10] tun3: deleting peer with id 12, reason 2
[   50.072062][   T10] tun5: deleting peer with id 14, reason 2
[   50.072077][   T72] tun4: deleting peer with id 13, reason 2
[   50.136075][   T63] tun6: deleting peer with id 15, reason 2