[  593.698513][   T12] tun0: no available key for peer 2, key-id: 0
[  593.698814][   T12] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/12
[  593.699091][   T12] caller is ovpn_recv+0x193/0x2b0 [ovpn]
[  593.699274][   T12] CPU: 2 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.0.0-virtme #1 PREEMPT(full) 
[  593.699278][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  593.699280][   T12] Workqueue: kstrp strp_work
[  593.699288][   T12] Call Trace:
[  593.699291][   T12]  <TASK>
[  593.699293][   T12]  dump_stack_lvl+0x6f/0xa0
[  593.699300][   T12]  check_preemption_disabled+0xdb/0xf0
[  593.699304][   T12]  ovpn_recv+0x193/0x2b0 [ovpn]
[  593.699309][   T12]  ovpn_tcp_rcv+0x279/0x910 [ovpn]
[  593.699314][   T12]  ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn]
[  593.699317][   T12]  ? __copy_skb_header+0xb7/0x510
[  593.699321][   T12]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  593.699324][   T12]  ? __skb_send_sock+0x940/0xa70
[  593.699328][   T12]  __strp_recv+0x20f/0x1c30
[  593.699332][   T12]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  593.699337][   T12]  __tcp_read_sock+0x1c7/0x850
[  593.699341][   T12]  ? strp_process+0xb0/0xb0
[  593.699344][   T12]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  593.699349][   T12]  strp_read_sock+0x20f/0x2b0
[  593.699351][   T12]  ? strp_stop+0x50/0x50
[  593.699352][   T12]  ? __lock_release.isra.0+0x6b/0x1a0
[  593.699358][   T12]  ? lockdep_hardirqs_on+0x8c/0x130
[  593.699359][   T12]  ? __local_bh_enable_ip+0xa5/0x140
[  593.699363][   T12]  strp_work+0x9f/0xe0
[  593.699365][   T12]  process_one_work+0xdf5/0x1410
[  593.699371][   T12]  ? pwq_dec_nr_in_flight+0x710/0x710
[  593.699373][   T12]  ? lock_acquire.part.0+0xbc/0x260
[  593.699379][   T12]  worker_thread+0x4f1/0xd60
[  593.699385][   T12]  ? rescuer_thread+0x1320/0x1320
[  593.699386][   T12]  kthread+0x364/0x460
[  593.699388][   T12]  ? trace_irq_enable.constprop.0+0x9b/0x180
[  593.699391][   T12]  ? kthread_affine_node+0x330/0x330
[  593.699393][   T12]  ret_from_fork+0x474/0x6b0
[  593.699397][   T12]  ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[  593.699401][   T12]  ? __switch_to+0x5a3/0xe00
[  593.699403][   T12]  ? kthread_affine_node+0x330/0x330
[  593.699405][   T12]  ret_from_fork_asm+0x11/0x20
[  593.699413][   T12]  </TASK>
[  593.797812][    C0] tun0: no available key for peer 3, key-id: 0
[  593.890063][    C3] tun0: no available key for peer 4, key-id: 0
[  594.083498][    C1] tun0: no available key for peer 6, key-id: 0
[  612.028761][ T8149] iperf3 (8149) used greatest stack depth: 22504 bytes left
[  613.825899][ T8243] tun0: deleting peer with id 1, reason 1
[  613.905678][ T8247] tun1: deleting peer with id 10, reason 1
[  616.762391][ T8295] tun0: deleting peer with id 2, reason 1
[  616.832673][ T8299] tun2: deleting peer with id 11, reason 1
[  621.724175][ T7658] tun0: deleting peer with id 4, reason 2
[  621.724660][ T7658] tun0: deleting peer with id 3, reason 2
[  622.746870][ T7658] tun0: deleting peer with id 5, reason 2
[  622.747128][ T7658] tun0: deleting peer with id 6, reason 2
[  627.868520][   T29] tun3: deleting peer with id 12, reason 2
[  627.931894][ T7658] tun4: deleting peer with id 13, reason 2
[  628.059877][   T29] tun5: deleting peer with id 14, reason 2
[  628.123898][ T7658] tun6: deleting peer with id 15, reason 2