[  136.352086][   T69] tun0: no available key for peer 4, key-id: 0
[  136.352336][   T69] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:1/69
[  136.352542][   T69] caller is ovpn_recv+0x193/0x2b0 [ovpn]
[  136.352675][   T69] CPU: 1 UID: 0 PID: 69 Comm: kworker/u16:1 Not tainted 7.0.0-rc6-virtme #1 PREEMPT(full) 
[  136.352678][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  136.352680][   T69] Workqueue: kstrp strp_work
[  136.352688][   T69] Call Trace:
[  136.352690][   T69]  <TASK>
[  136.352692][   T69]  dump_stack_lvl+0x6f/0xa0
[  136.352698][   T69]  check_preemption_disabled+0xdb/0xf0
[  136.352704][   T69]  ovpn_recv+0x193/0x2b0 [ovpn]
[  136.352708][   T69]  ovpn_tcp_rcv+0x279/0x910 [ovpn]
[  136.352713][   T69]  ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn]
[  136.352716][   T69]  ? __copy_skb_header+0xb7/0x440
[  136.352721][   T69]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  136.352724][   T69]  ? skb_copy+0x200/0x3a0
[  136.352727][   T69]  __strp_recv+0x20f/0x1c30
[  136.352732][   T69]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  136.352737][   T69]  __tcp_read_sock+0x1c7/0x850
[  136.352741][   T69]  ? strp_process+0xb0/0xb0
[  136.352744][   T69]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  136.352748][   T69]  strp_read_sock+0x20f/0x2b0
[  136.352751][   T69]  ? strp_stop+0x50/0x50
[  136.352753][   T69]  ? __lock_release.isra.0+0x6b/0x1a0
[  136.352758][   T69]  ? lockdep_hardirqs_on+0x8c/0x130
[  136.352760][   T69]  ? __local_bh_enable_ip+0xa5/0x140
[  136.352763][   T69]  strp_work+0x9f/0xe0
[  136.352766][   T69]  process_one_work+0xdf5/0x1410
[  136.352773][   T69]  ? pwq_dec_nr_in_flight+0x710/0x710
[  136.352775][   T69]  ? lock_acquire.part.0+0xbc/0x260
[  136.352781][   T69]  worker_thread+0x4f1/0xd60
[  136.352785][   T69]  ? rescuer_thread+0x1320/0x1320
[  136.352787][   T69]  ? __kthread_parkme+0xbd/0x210
[  136.352792][   T69]  ? rescuer_thread+0x1320/0x1320
[  136.352794][   T69]  kthread+0x364/0x460
[  136.352796][   T69]  ? trace_irq_enable.constprop.0+0x9b/0x180
[  136.352800][   T69]  ? kthread_affine_node+0x330/0x330
[  136.352802][   T69]  ret_from_fork+0x474/0x6b0
[  136.352807][   T69]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[  136.352810][   T69]  ? __switch_to+0x540/0xd10
[  136.352813][   T69]  ? kthread_affine_node+0x330/0x330
[  136.352816][   T69]  ret_from_fork_asm+0x11/0x20
[  136.352823][   T69]  </TASK>
[  136.411660][    C0] tun0: no available key for peer 5, key-id: 0
[  144.663338][ T1459] iperf3 (1459) used greatest stack depth: 22640 bytes left
[  144.822189][ T1410] tun1: deleting peer with id 10, reason 4
[  144.824446][ T1413] tun2: deleting peer with id 11, reason 4
[  144.824636][ T1427] tun6: deleting peer with id 15, reason 4
[  144.824810][ T1416] tun3: deleting peer with id 12, reason 4
[  144.825482][ T1422] tun5: deleting peer with id 14, reason 4
[  144.826016][ T1419] tun4: deleting peer with id 13, reason 4
[  144.830352][ T1425] tun0: deleting peer with id 6, reason 4
[  144.837091][ T1425] tun0: deleting peer with id 5, reason 4
[  144.842936][ T1425] tun0: deleting peer with id 4, reason 4
[  144.850926][ T1425] tun0: deleting peer with id 3, reason 4
[  144.860935][ T1425] tun0: deleting peer with id 2, reason 4
[  144.868785][ T1425] tun0: deleting peer with id 1, reason 4