[ 1369.517643][    C2] tun0: no available key for peer 1, key-id: 0
[ 1369.574033][    C2] tun0: no available key for peer 2, key-id: 0
[ 1369.699018][ T7326] tun0: no available key for peer 4, key-id: 0
[ 1369.699654][ T7326] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/7326
[ 1369.699912][ T7326] caller is ovpn_recv+0x192/0x2a0 [ovpn]
[ 1369.700090][ T7326] CPU: 2 UID: 0 PID: 7326 Comm: kworker/u16:0 Not tainted 7.0.0-rc4-virtme #1 PREEMPT(full) 
[ 1369.700094][ T7326] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1369.700096][ T7326] Workqueue: kstrp strp_work
[ 1369.700108][ T7326] Call Trace:
[ 1369.700110][ T7326]  <TASK>
[ 1369.700112][ T7326]  dump_stack_lvl+0x6f/0xa0
[ 1369.700119][ T7326]  check_preemption_disabled+0xdb/0xf0
[ 1369.700125][ T7326]  ovpn_recv+0x192/0x2a0 [ovpn]
[ 1369.700131][ T7326]  ovpn_tcp_rcv+0x277/0x920 [ovpn]
[ 1369.700135][ T7326]  ? ovpn_tcp_write_space+0x2b0/0x2b0 [ovpn]
[ 1369.700139][ T7326]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[ 1369.700142][ T7326]  ? csum_and_copy_from_iter_full+0x480/0x1f30
[ 1369.700148][ T7326]  __strp_recv+0x1ee/0x1b70
[ 1369.700152][ T7326]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[ 1369.700158][ T7326]  __tcp_read_sock+0x1a1/0x7c0
[ 1369.700162][ T7326]  ? strp_process+0xb0/0xb0
[ 1369.700165][ T7326]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[ 1369.700170][ T7326]  strp_read_sock+0x20f/0x2b0
[ 1369.700173][ T7326]  ? strp_stop+0x50/0x50
[ 1369.700175][ T7326]  ? __lock_release.isra.0+0x59/0x170
[ 1369.700180][ T7326]  ? lockdep_hardirqs_on+0x84/0x130
[ 1369.700181][ T7326]  ? __local_bh_enable_ip+0xa3/0x140
[ 1369.700185][ T7326]  strp_work+0x9f/0xe0
[ 1369.700187][ T7326]  process_one_work+0xdf6/0x1410
[ 1369.700195][ T7326]  ? pwq_dec_nr_in_flight+0x700/0x700
[ 1369.700197][ T7326]  ? lock_acquire.part.0+0xbc/0x260
[ 1369.700203][ T7326]  worker_thread+0x4eb/0xd60
[ 1369.700207][ T7326]  ? rescuer_thread+0x1340/0x1340
[ 1369.700210][ T7326]  ? __kthread_parkme+0xb3/0x200
[ 1369.700214][ T7326]  ? rescuer_thread+0x1340/0x1340
[ 1369.700216][ T7326]  kthread+0x30f/0x3f0
[ 1369.700218][ T7326]  ? trace_irq_enable.constprop.0+0x13c/0x190
[ 1369.700222][ T7326]  ? kthread_affine_node+0x150/0x150
[ 1369.700225][ T7326]  ret_from_fork+0x472/0x6b0
[ 1369.700229][ T7326]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[ 1369.700232][ T7326]  ? __switch_to+0x538/0xcf0
[ 1369.700235][ T7326]  ? kthread_affine_node+0x150/0x150
[ 1369.700238][ T7326]  ret_from_fork_asm+0x11/0x20
[ 1369.700246][ T7326]  </TASK>
[ 1369.779692][    C3] tun0: no available key for peer 5, key-id: 0
[ 1378.249614][ T9695] tun0: deleting peer with id 6, reason 4
[ 1378.249622][ T9696] tun6: deleting peer with id 15, reason 4
[ 1378.249820][ T9680] tun1: deleting peer with id 10, reason 4
[ 1378.249948][ T9692] tun5: deleting peer with id 14, reason 4
[ 1378.250679][ T9683] tun2: deleting peer with id 11, reason 4
[ 1378.250960][ T9686] tun3: deleting peer with id 12, reason 4
[ 1378.251524][ T9689] tun4: deleting peer with id 13, reason 4
[ 1378.261206][ T9695] tun0: deleting peer with id 5, reason 4
[ 1378.266579][ T9695] tun0: deleting peer with id 4, reason 4
[ 1378.274474][ T9695] tun0: deleting peer with id 3, reason 4
[ 1378.284755][ T9695] tun0: deleting peer with id 2, reason 4
[ 1378.292903][ T9695] tun0: deleting peer with id 1, reason 4