[  753.112035][    C3] tun0: no available key for peer 1, key-id: 0
[  753.239356][    C3] tun0: no available key for peer 2, key-id: 0
[  753.476151][   T12] tun0: no available key for peer 4, key-id: 0
[  753.476557][   T12] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/12
[  753.476938][   T12] caller is ovpn_recv+0x193/0x2b0 [ovpn]
[  753.477104][   T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.0.0-virtme #6 PREEMPT(full) 
[  753.477108][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  753.477110][   T12] Workqueue: kstrp strp_work
[  753.477117][   T12] Call Trace:
[  753.477119][   T12]  <TASK>
[  753.477121][   T12]  dump_stack_lvl+0x6f/0xa0
[  753.477127][   T12]  check_preemption_disabled+0xdb/0xf0
[  753.477132][   T12]  ovpn_recv+0x193/0x2b0 [ovpn]
[  753.477136][   T12]  ovpn_tcp_rcv+0x279/0x910 [ovpn]
[  753.477141][   T12]  ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn]
[  753.477144][   T12]  ? __copy_skb_header+0xb7/0x510
[  753.477149][   T12]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  753.477152][   T12]  ? __skb_send_sock+0x940/0xa70
[  753.477156][   T12]  __strp_recv+0x20f/0x1c30
[  753.477160][   T12]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  753.477166][   T12]  __tcp_read_sock+0x1c7/0x850
[  753.477169][   T12]  ? strp_process+0xb0/0xb0
[  753.477172][   T12]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  753.477177][   T12]  strp_read_sock+0x20f/0x2b0
[  753.477180][   T12]  ? strp_stop+0x50/0x50
[  753.477181][   T12]  ? __lock_release.isra.0+0x6b/0x1a0
[  753.477187][   T12]  ? lockdep_hardirqs_on+0x8c/0x130
[  753.477189][   T12]  ? __local_bh_enable_ip+0xa5/0x140
[  753.477193][   T12]  strp_work+0x9f/0xe0
[  753.477195][   T12]  process_one_work+0xdf5/0x1410
[  753.477201][   T12]  ? pwq_dec_nr_in_flight+0x710/0x710
[  753.477203][   T12]  ? lock_acquire.part.0+0xbc/0x260
[  753.477210][   T12]  worker_thread+0x4f1/0xd60
[  753.477216][   T12]  ? rescuer_thread+0x1320/0x1320
[  753.477218][   T12]  kthread+0x364/0x460
[  753.477220][   T12]  ? trace_irq_enable.constprop.0+0x9b/0x180
[  753.477223][   T12]  ? kthread_affine_node+0x330/0x330
[  753.477225][   T12]  ret_from_fork+0x474/0x6b0
[  753.477230][   T12]  ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[  753.477233][   T12]  ? __switch_to+0x5a3/0xe00
[  753.477236][   T12]  ? kthread_affine_node+0x330/0x330
[  753.477238][   T12]  ret_from_fork_asm+0x11/0x20
[  753.477246][   T12]  </TASK>
[  762.563225][ T9610] tun3: deleting peer with id 12, reason 4
[  762.563273][ T9596] tun1: deleting peer with id 10, reason 4
[  762.566001][ T9617] tun4: deleting peer with id 13, reason 4
[  762.568918][ T9603] tun2: deleting peer with id 11, reason 4
[  762.570192][ T9632] tun0: deleting peer with id 6, reason 4
[  762.570541][ T9624] tun5: deleting peer with id 14, reason 4
[  762.575628][ T9633] tun6: deleting peer with id 15, reason 4
[  762.576890][ T9632] tun0: deleting peer with id 5, reason 4
[  762.585213][ T9632] tun0: deleting peer with id 4, reason 4
[  762.592297][ T9632] tun0: deleting peer with id 3, reason 4
[  762.602370][ T9632] tun0: deleting peer with id 2, reason 4
[  762.611213][ T9632] tun0: deleting peer with id 1, reason 4