[  675.881003][    C1] tun0: no available key for peer 1, key-id: 0
[  676.157017][    C3] tun0: no available key for peer 3, key-id: 0
[  676.297441][   T12] tun0: no available key for peer 4, key-id: 0
[  676.297712][   T12] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/12
[  676.297934][   T12] caller is ovpn_recv+0x193/0x2b0 [ovpn]
[  676.298063][   T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.1.0-rc2-virtme #1 PREEMPT(full) 
[  676.298066][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  676.298068][   T12] Workqueue: kstrp strp_work
[  676.298077][   T12] Call Trace:
[  676.298078][   T12]  <TASK>
[  676.298080][   T12]  dump_stack_lvl+0x6f/0xa0
[  676.298087][   T12]  check_preemption_disabled+0xdb/0xf0
[  676.298091][   T12]  ovpn_recv+0x193/0x2b0 [ovpn]
[  676.298095][   T12]  ovpn_tcp_rcv+0x279/0x910 [ovpn]
[  676.298100][   T12]  ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn]
[  676.298103][   T12]  ? __copy_skb_header+0xb7/0x510
[  676.298108][   T12]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  676.298111][   T12]  ? __skb_splice_bits.isra.0+0x380/0x890
[  676.298115][   T12]  __strp_recv+0x20f/0x1c30
[  676.298120][   T12]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  676.298125][   T12]  __tcp_read_sock+0x1c7/0x850
[  676.298129][   T12]  ? strp_process+0xb0/0xb0
[  676.298133][   T12]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  676.298138][   T12]  strp_read_sock+0x20f/0x2b0
[  676.298141][   T12]  ? strp_stop+0x50/0x50
[  676.298143][   T12]  ? __lock_release.isra.0+0x6b/0x1a0
[  676.298148][   T12]  ? lockdep_hardirqs_on+0x8c/0x130
[  676.298149][   T12]  ? __local_bh_enable_ip+0xa5/0x140
[  676.298153][   T12]  strp_work+0x9f/0xe0
[  676.298155][   T12]  process_one_work+0xdf5/0x1410
[  676.298162][   T12]  ? pwq_dec_nr_in_flight+0x710/0x710
[  676.298164][   T12]  ? lock_acquire.part.0+0xbc/0x260
[  676.298171][   T12]  worker_thread+0x4f1/0xd60
[  676.298178][   T12]  ? rescuer_thread+0x1320/0x1320
[  676.298180][   T12]  kthread+0x364/0x460
[  676.298182][   T12]  ? trace_irq_enable.constprop.0+0x9b/0x180
[  676.298187][   T12]  ? kthread_affine_node+0x330/0x330
[  676.298189][   T12]  ret_from_fork+0x474/0x6b0
[  676.298194][   T12]  ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[  676.298197][   T12]  ? __switch_to+0x5a3/0xe00
[  676.298200][   T12]  ? kthread_affine_node+0x330/0x330
[  676.298203][   T12]  ret_from_fork_asm+0x11/0x20
[  676.298211][   T12]  </TASK>
[  676.419044][    C3] tun0: no available key for peer 5, key-id: 0
[  676.541783][    C1] tun0: no available key for peer 6, key-id: 0
[  683.399199][ T9603] tun1: deleting peer with id 10, reason 4
[  683.400600][ T9624] tun4: deleting peer with id 13, reason 4
[  683.401146][ T9638] tun6: deleting peer with id 15, reason 4
[  683.401275][ T9610] tun2: deleting peer with id 11, reason 4
[  683.402301][ T9631] tun5: deleting peer with id 14, reason 4
[  683.404226][ T9617] tun3: deleting peer with id 12, reason 4
[  683.411342][ T9639] tun0: deleting peer with id 6, reason 4
[  683.413918][ T9639] tun0: deleting peer with id 5, reason 4
[  683.424808][ T9639] tun0: deleting peer with id 4, reason 4
[  683.433787][ T9639] tun0: deleting peer with id 3, reason 4
[  683.442823][ T9639] tun0: deleting peer with id 2, reason 4
[  683.452717][ T9639] tun0: deleting peer with id 1, reason 4