[  247.148206][ T1426] tun3: deleting peer with id 3, reason 4
[  247.148280][ T1422] tun1: deleting peer with id 1, reason 4
[  247.149100][ T1433] tun6: deleting peer with id 6, reason 4
[  247.149608][ T1424] tun2: deleting peer with id 2, reason 4
[  247.150409][ T1428] tun4: deleting peer with id 4, reason 4
[  247.161309][ T1430] tun5: deleting peer with id 5, reason 4
[  247.161960][ T1432] tun0: deleting peer with id 6, reason 4
[  247.169761][ T1432] tun0: deleting peer with id 5, reason 4
[  247.178451][ T1432] tun0: deleting peer with id 4, reason 4
[  247.186543][ T1432] tun0: deleting peer with id 3, reason 4
[  247.194825][ T1432] tun0: deleting peer with id 2, reason 4
[  247.202519][ T1432] tun0: deleting peer with id 1, reason 4
[  256.124690][    C2] tun0: no available key for peer 2, key-id: 0
[  256.250176][   T12] tun0: no available key for peer 4, key-id: 0
[  256.250453][   T12] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/12
[  256.250690][   T12] caller is ovpn_recv+0x192/0x2a0 [ovpn]
[  256.250828][   T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.0.0-rc5-virtme #1 PREEMPT(full) 
[  256.250831][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  256.250833][   T12] Workqueue: kstrp strp_work
[  256.250841][   T12] Call Trace:
[  256.250843][   T12]  <TASK>
[  256.250845][   T12]  dump_stack_lvl+0x6f/0xa0
[  256.250852][   T12]  check_preemption_disabled+0xdb/0xf0
[  256.250857][   T12]  ovpn_recv+0x192/0x2a0 [ovpn]
[  256.250861][   T12]  ovpn_tcp_rcv+0x277/0x920 [ovpn]
[  256.250866][   T12]  ? ovpn_tcp_write_space+0x2b0/0x2b0 [ovpn]
[  256.250870][   T12]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  256.250873][   T12]  ? __napi_alloc_frag_align+0x270/0x470
[  256.250879][   T12]  __strp_recv+0x1ee/0x1b70
[  256.250884][   T12]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  256.250890][   T12]  __tcp_read_sock+0x1a1/0x7c0
[  256.250895][   T12]  ? strp_process+0xb0/0xb0
[  256.250897][   T12]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  256.250906][   T12]  strp_read_sock+0x20f/0x2b0
[  256.250910][   T12]  ? strp_stop+0x50/0x50
[  256.250912][   T12]  ? __lock_release.isra.0+0x59/0x170
[  256.250918][   T12]  ? lockdep_hardirqs_on+0x84/0x130
[  256.250920][   T12]  ? __local_bh_enable_ip+0xa3/0x140
[  256.250924][   T12]  strp_work+0x9f/0xe0
[  256.250926][   T12]  process_one_work+0xdf6/0x1410
[  256.250934][   T12]  ? pwq_dec_nr_in_flight+0x700/0x700
[  256.250936][   T12]  ? lock_acquire.part.0+0xbc/0x260
[  256.250943][   T12]  worker_thread+0x4eb/0xd60
[  256.250949][   T12]  ? rescuer_thread+0x1340/0x1340
[  256.250951][   T12]  kthread+0x30f/0x3f0
[  256.250954][   T12]  ? trace_irq_enable.constprop.0+0x13c/0x190
[  256.250958][   T12]  ? kthread_affine_node+0x150/0x150
[  256.250961][   T12]  ret_from_fork+0x472/0x6b0
[  256.250965][   T12]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[  256.250973][   T12]  ? __switch_to+0x538/0xcf0
[  256.250976][   T12]  ? kthread_affine_node+0x150/0x150
[  256.250979][   T12]  ret_from_fork_asm+0x11/0x20
[  256.250987][   T12]  </TASK>
[  264.690109][ T1771] iperf3 (1771) used greatest stack depth: 23240 bytes left
[  264.902071][ T1728] tun3: deleting peer with id 12, reason 4
[  264.903283][ T1737] tun0: deleting peer with id 6, reason 4
[  264.903297][ T1731] tun4: deleting peer with id 13, reason 4
[  264.903315][ T1721] tun1: deleting peer with id 10, reason 4
[  264.903650][ T1724] tun2: deleting peer with id 11, reason 4
[  264.903872][ T1734] tun5: deleting peer with id 14, reason 4
[  264.904228][ T1738] tun6: deleting peer with id 15, reason 4
[  264.908593][ T1737] tun0: deleting peer with id 5, reason 4
[  264.916357][ T1737] tun0: deleting peer with id 4, reason 4
[  264.921877][ T1737] tun0: deleting peer with id 3, reason 4
[  264.927368][ T1737] tun0: deleting peer with id 2, reason 4
[  264.937389][ T1737] tun0: deleting peer with id 1, reason 4