[  211.322447][   T12] tun0: no available key for peer 3, key-id: 0
[  211.322722][   T12] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/12
[  211.323000][   T12] caller is ovpn_recv+0x193/0x2b0 [ovpn]
[  211.323127][   T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.1.0-rc1-virtme #1 PREEMPT(full) 
[  211.323130][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  211.323132][   T12] Workqueue: kstrp strp_work
[  211.323140][   T12] Call Trace:
[  211.323142][   T12]  <TASK>
[  211.323144][   T12]  dump_stack_lvl+0x6f/0xa0
[  211.323151][   T12]  check_preemption_disabled+0xdb/0xf0
[  211.323155][   T12]  ovpn_recv+0x193/0x2b0 [ovpn]
[  211.323160][   T12]  ovpn_tcp_rcv+0x279/0x910 [ovpn]
[  211.323165][   T12]  ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn]
[  211.323168][   T12]  ? __copy_skb_header+0xb7/0x510
[  211.323173][   T12]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[  211.323176][   T12]  ? csum_and_copy_from_iter_full+0xb00/0x1f70
[  211.323180][   T12]  __strp_recv+0x20f/0x1c30
[  211.323185][   T12]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  211.323191][   T12]  __tcp_read_sock+0x1c7/0x850
[  211.323195][   T12]  ? strp_process+0xb0/0xb0
[  211.323198][   T12]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[  211.323203][   T12]  strp_read_sock+0x20f/0x2b0
[  211.323207][   T12]  ? strp_stop+0x50/0x50
[  211.323209][   T12]  ? __lock_release.isra.0+0x6b/0x1a0
[  211.323214][   T12]  ? lockdep_hardirqs_on+0x8c/0x130
[  211.323215][   T12]  ? __local_bh_enable_ip+0xa5/0x140
[  211.323219][   T12]  strp_work+0x9f/0xe0
[  211.323222][   T12]  process_one_work+0xdf5/0x1410
[  211.323228][   T12]  ? pwq_dec_nr_in_flight+0x710/0x710
[  211.323230][   T12]  ? lock_acquire.part.0+0xbc/0x260
[  211.323237][   T12]  worker_thread+0x4f1/0xd60
[  211.323243][   T12]  ? rescuer_thread+0x1320/0x1320
[  211.323245][   T12]  kthread+0x364/0x460
[  211.323248][   T12]  ? trace_irq_enable.constprop.0+0x9b/0x180
[  211.323252][   T12]  ? kthread_affine_node+0x330/0x330
[  211.323254][   T12]  ret_from_fork+0x474/0x6b0
[  211.323258][   T12]  ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[  211.323261][   T12]  ? __switch_to+0x5a3/0xe00
[  211.323264][   T12]  ? kthread_affine_node+0x330/0x330
[  211.323267][   T12]  ret_from_fork_asm+0x11/0x20
[  211.323274][   T12]  </TASK>
[  211.398379][    C3] tun0: no available key for peer 4, key-id: 0
[  211.539640][    C3] tun0: no available key for peer 6, key-id: 0
[  228.539208][ T2401] iperf3 (2401) used greatest stack depth: 22840 bytes left
[  230.305624][ T2495] tun0: deleting peer with id 1, reason 1
[  230.384124][ T2499] tun1: deleting peer with id 1, reason 1
[  233.196436][ T2547] tun0: deleting peer with id 2, reason 1
[  233.276199][ T2551] tun2: deleting peer with id 2, reason 1
[  239.314783][   T62] tun0: deleting peer with id 4, reason 2
[  239.315339][   T62] tun0: deleting peer with id 3, reason 2
[  239.315744][   T62] tun0: deleting peer with id 5, reason 2
[  239.315978][   T62] tun0: deleting peer with id 6, reason 2
[  244.434936][   T34] tun3: deleting peer with id 3, reason 2
[  244.562560][   T62] tun4: deleting peer with id 4, reason 2
[  244.627544][   T62] tun5: deleting peer with id 5, reason 2
[  244.690546][   T34] tun6: deleting peer with id 6, reason 2