[  134.202572][   T71] tun0: no available key for peer 2, key-id: 0
[  134.202848][   T71] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:1/71
[  134.203109][   T71] caller is ovpn_recv+0x192/0x2a0 [ovpn]
[  134.203254][   T71] CPU: 0 UID: 0 PID: 71 Comm: kworker/u16:1 Not tainted 7.0.0-rc4-virtme #1 PREEMPT(full) 
[  134.203258][   T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  134.203260][   T71] Workqueue: kstrp strp_work
[  134.203268][   T71] Call Trace:
[  134.203269][   T71]  <TASK>
[  134.203271][   T71]  dump_stack_lvl+0x6f/0xa0
[  134.203278][   T71]  check_preemption_disabled+0xdb/0xf0
[  134.203284][   T71]  ovpn_recv+0x192/0x2a0 [ovpn]
[  134.203288][   T71]  ovpn_tcp_rcv+0x277/0x920 [ovpn]
[  134.203293][   T71]  ? ovpn_tcp_write_space+0x2b0/0x2b0 [ovpn]
[  134.203297][   T71]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  134.203300][   T71]  ? csum_and_copy_from_iter_full+0x300/0x1f30
[  134.203306][   T71]  __strp_recv+0x1ee/0x1b70
[  134.203311][   T71]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  134.203317][   T71]  __tcp_read_sock+0x1a1/0x7c0
[  134.203321][   T71]  ? strp_process+0xb0/0xb0
[  134.203325][   T71]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  134.203330][   T71]  strp_read_sock+0x20f/0x2b0
[  134.203333][   T71]  ? strp_stop+0x50/0x50
[  134.203335][   T71]  ? __lock_release.isra.0+0x59/0x170
[  134.203340][   T71]  ? lockdep_hardirqs_on+0x84/0x130
[  134.203342][   T71]  ? __local_bh_enable_ip+0xa3/0x140
[  134.203346][   T71]  strp_work+0x9f/0xe0
[  134.203348][   T71]  process_one_work+0xdf6/0x1410
[  134.203356][   T71]  ? pwq_dec_nr_in_flight+0x700/0x700
[  134.203358][   T71]  ? lock_acquire.part.0+0xbc/0x260
[  134.203365][   T71]  worker_thread+0x4eb/0xd60
[  134.203370][   T71]  ? rescuer_thread+0x1340/0x1340
[  134.203372][   T71]  ? __kthread_parkme+0xb3/0x200
[  134.203377][   T71]  ? rescuer_thread+0x1340/0x1340
[  134.203379][   T71]  kthread+0x30f/0x3f0
[  134.203381][   T71]  ? trace_irq_enable.constprop.0+0x13c/0x190
[  134.203385][   T71]  ? kthread_affine_node+0x150/0x150
[  134.203388][   T71]  ret_from_fork+0x472/0x6b0
[  134.203393][   T71]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[  134.203396][   T71]  ? __switch_to+0x538/0xcf0
[  134.203400][   T71]  ? kthread_affine_node+0x150/0x150
[  134.203403][   T71]  ret_from_fork_asm+0x11/0x20
[  134.203411][   T71]  </TASK>
[  134.245300][    C3] tun0: no available key for peer 3, key-id: 0
[  134.291950][    C3] tun0: no available key for peer 4, key-id: 0
[  134.387994][    C0] tun0: no available key for peer 6, key-id: 0
[  152.400706][ T1540] iperf3 (1540) used greatest stack depth: 23040 bytes left
[  154.610215][ T1565] tun0: deleting peer with id 1, reason 1
[  154.657017][ T1566] tun1: deleting peer with id 1, reason 1
[  157.196270][ T1580] tun0: deleting peer with id 2, reason 1
[  157.242799][ T1581] tun2: deleting peer with id 2, reason 1
[  160.860321][   T66] tun0: deleting peer with id 4, reason 2
[  160.860882][   T66] tun0: deleting peer with id 3, reason 2
[  160.861192][   T66] tun0: deleting peer with id 5, reason 2
[  160.861454][   T66] tun0: deleting peer with id 6, reason 2
[  165.979401][   T10] tun3: deleting peer with id 3, reason 2
[  166.043034][   T10] tun5: deleting peer with id 5, reason 2
[  166.043052][   T52] tun4: deleting peer with id 4, reason 2
[  166.108036][   T52] tun6: deleting peer with id 6, reason 2