[  135.395310][    C3] tun0: no available key for peer 3, key-id: 0
[  135.592136][   T12] tun0: no available key for peer 6, key-id: 0
[  135.592389][   T12] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/12
[  135.592601][   T12] caller is ovpn_recv+0x192/0x2a0 [ovpn]
[  135.592744][   T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.0.0-rc5-virtme #1 PREEMPT(full) 
[  135.592747][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  135.592749][   T12] Workqueue: kstrp strp_work
[  135.592756][   T12] Call Trace:
[  135.592758][   T12]  <TASK>
[  135.592759][   T12]  dump_stack_lvl+0x6f/0xa0
[  135.592766][   T12]  check_preemption_disabled+0xdb/0xf0
[  135.592771][   T12]  ovpn_recv+0x192/0x2a0 [ovpn]
[  135.592776][   T12]  ovpn_tcp_rcv+0x277/0x920 [ovpn]
[  135.592781][   T12]  ? ovpn_tcp_write_space+0x2b0/0x2b0 [ovpn]
[  135.592785][   T12]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  135.592788][   T12]  ? skb_pp_frag_ref+0x1c0/0x440
[  135.592793][   T12]  __strp_recv+0x1ee/0x1b70
[  135.592798][   T12]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  135.592803][   T12]  __tcp_read_sock+0x1a1/0x7c0
[  135.592808][   T12]  ? strp_process+0xb0/0xb0
[  135.592811][   T12]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  135.592816][   T12]  strp_read_sock+0x20f/0x2b0
[  135.592819][   T12]  ? strp_stop+0x50/0x50
[  135.592821][   T12]  ? __lock_release.isra.0+0x59/0x170
[  135.592826][   T12]  ? lockdep_hardirqs_on+0x84/0x130
[  135.592828][   T12]  ? __local_bh_enable_ip+0xa3/0x140
[  135.592832][   T12]  strp_work+0x9f/0xe0
[  135.592838][   T12]  process_one_work+0xdf6/0x1410
[  135.592845][   T12]  ? pwq_dec_nr_in_flight+0x700/0x700
[  135.592847][   T12]  ? lock_acquire.part.0+0xbc/0x260
[  135.592854][   T12]  worker_thread+0x4eb/0xd60
[  135.592860][   T12]  ? rescuer_thread+0x1340/0x1340
[  135.592862][   T12]  kthread+0x30f/0x3f0
[  135.592865][   T12]  ? trace_irq_enable.constprop.0+0x13c/0x190
[  135.592868][   T12]  ? kthread_affine_node+0x150/0x150
[  135.592871][   T12]  ret_from_fork+0x472/0x6b0
[  135.592875][   T12]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[  135.592878][   T12]  ? __switch_to+0x538/0xcf0
[  135.592882][   T12]  ? kthread_affine_node+0x150/0x150
[  135.592885][   T12]  ret_from_fork_asm+0x11/0x20
[  135.592892][   T12]  </TASK>
[  153.974945][ T1547] iperf3 (1547) used greatest stack depth: 22848 bytes left
[  156.041912][ T1572] tun0: deleting peer with id 1, reason 1
[  156.091188][ T1573] tun1: deleting peer with id 10, reason 1
[  158.581486][ T1587] tun0: deleting peer with id 2, reason 1
[  158.631644][ T1588] tun2: deleting peer with id 11, reason 1
[  162.281782][   T34] tun0: deleting peer with id 4, reason 2
[  162.282223][   T34] tun0: deleting peer with id 3, reason 2
[  162.282427][   T34] tun0: deleting peer with id 5, reason 2
[  162.282637][   T34] tun0: deleting peer with id 6, reason 2
[  167.337936][   T34] tun3: deleting peer with id 12, reason 2
[  167.400575][   T10] tun4: deleting peer with id 13, reason 2
[  167.464557][   T10] tun6: deleting peer with id 15, reason 2
[  167.464573][   T34] tun5: deleting peer with id 14, reason 2