[ 318.406262][ T2252] ------------[ cut here ]------------
[ 318.406441][ T2252] workqueue: ovpn is using neither WQ_PERCPU or WQ_UNBOUND. Setting WQ_PERCPU.
[ 318.407131][ T2252] WARNING: kernel/workqueue.c:5851 at __alloc_workqueue+0xa8b/0xe40, CPU#1: modprobe/2252
[ 318.407356][ T2252] Modules linked in: ovpn(+) ip6_udp_tunnel udp_tunnel 8021q
[ 318.407708][ T2252] CPU: 1 UID: 0 PID: 2252 Comm: modprobe Not tainted 7.2.0-rc6-virtme #1 PREEMPT(full)
[ 318.407943][ T2252] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 318.408101][ T2252] RIP: 0010:__alloc_workqueue+0xa8f/0xe40
[ 318.408234][ T2252] Code: 80 fb 01 0f 87 24 3e 9f ff 83 e3 01 0f 84 2f 3e 9f ff 89 e8 25 02 01 00 00 0f 85 b8 f7 ff ff 48 8d 3d c5 ca ea 03 48 8b 34 24 <67> 48 0f b9 3a 31 db 81 cd 00 01 00 00 e9 ab f7 ff ff 90 0f 0b 90
[ 318.408798][ T2252] RSP: 0018:ffa00000024977f0 EFLAGS: 00010246
[ 318.408992][ T2252] RAX: 0000000000000004 RBX: ffffffffc0525b60 RCX: 1ff4000000492eea
[ 318.409213][ T2252] RDX: 0000000000000000 RSI: ff11000008dd8970 RDI: ffffffff902e81e0
[ 318.409406][ T2252] RBP: 0000000000000000 R08: ffffffffc0525b64 R09: 0000000000000000
[ 318.409597][ T2252] R10: 0000000000000000 R11: ff11000008dd8990 R12: ffa0000002497890
[ 318.409843][ T2252] R13: 0000000000000000 R14: ff11000008dd8800 R15: ffffffffc051eac0
[ 318.410053][ T2252] FS: 00007f7b52dbbbc0(0000) GS:ff110000a4548000(0000) knlGS:0000000000000000
[ 318.410280][ T2252] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 318.410445][ T2252] CR2: 000056259be183c0 CR3: 000000000f2c7006 CR4: 0000000000771ef0
[ 318.410642][ T2252] PKRU: 55555554
[ 318.410792][ T2252] Call Trace:
[ 318.410888][ T2252]
[ 318.410971][ T2252] ? ovpn_cleanup+0x140/0x140 [ovpn]
[ 318.411106][ T2252] alloc_workqueue_noprof+0xb3/0x100
[ 318.411233][ T2252] ? alloc_workqueue_lockdep_map+0x130/0x130
[ 318.411394][ T2252] ? do_one_initcall+0x11a/0x4f0
[ 318.411521][ T2252] ovpn_init+0x1f/0xa0 [ovpn]
[ 318.411646][ T2252] do_one_initcall+0x12b/0x4f0
[ 318.411827][ T2252] ? trace_event_raw_event_initcall_level+0x280/0x280
[ 318.411998][ T2252] ? kasan_save_track+0x14/0x30
[ 318.412128][ T2252] ? do_init_module+0xae/0x8a0
[ 318.412251][ T2252] ? kasan_unpoison+0x44/0x70
[ 318.412379][ T2252] do_init_module+0x2ad/0x8a0
[ 318.412505][ T2252] ? lockdep_hardirqs_on+0x8c/0x130
[ 318.412641][ T2252] ? free_module+0x4a0/0x4a0
[ 318.412885][ T2252] ? kfree+0x123/0x5a0
[ 318.413028][ T2252] load_module+0x13fa/0x1ae0
[ 318.413190][ T2252] ? layout_and_allocate.isra.0+0x680/0x680
[ 318.413366][ T2252] ? __ia32_sys_fsconfig+0x180/0x180
[ 318.413500][ T2252] ? backing_file_read_iter+0x541/0x790
[ 318.413630][ T2252] init_module_from_file+0x11f/0x1a0
[ 318.413815][ T2252] ? __do_sys_init_module+0x220/0x220
[ 318.413951][ T2252] ? __lock_acquire+0x518/0xc20
[ 318.414084][ T2252] ? ovl_dentry_test_flag+0x37/0x40
[ 318.414216][ T2252] ? __rwlock_init+0x150/0x150
[ 318.414346][ T2252] ? do_raw_spin_unlock+0x59/0x250
[ 318.414477][ T2252] idempotent_init_module+0x37b/0x7c0
[ 318.414605][ T2252] ? init_module_from_file+0x1a0/0x1a0
[ 318.414767][ T2252] ? rcu_is_watching+0x15/0xd0
[ 318.414898][ T2252] ? cap_capable+0x1d7/0x3d0
[ 318.415059][ T2252] __x64_sys_finit_module+0xdf/0x190
[ 318.415200][ T2252] ? trace_irq_enable.constprop.0+0x9b/0x160
[ 318.415369][ T2252] do_syscall_64+0x117/0x590
[ 318.415503][ T2252] ? trace_hardirqs_off+0xd/0x30
[ 318.415639][ T2252] ? exc_page_fault+0xee/0x100
[ 318.415782][ T2252] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 318.416048][ T2252] RIP: 0033:0x7f7b52eb137d
[ 318.416189][ T2252] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
[ 318.416748][ T2252] RSP: 002b:00007ffea49daaa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 318.416949][ T2252] RAX: ffffffffffffffda RBX: 0000558aedc369c0 RCX: 00007f7b52eb137d
[ 318.417138][ T2252] RDX: 0000000000000000 RSI: 0000558ab605fffd RDI: 0000000000000007
[ 318.417410][ T2252] RBP: 00007ffea49dab40 R08: 0000000000000000 R09: 0000000000000000
[ 318.417601][ T2252] R10: 0000000000000000 R11: 0000000000000246 R12: 0000558ab605fffd
[ 318.417800][ T2252] R13: 0000558aedc36ae0 R14: 0000000000040000 R15: 0000000000000000
[ 318.418083][ T2252]
[ 318.418177][ T2252] irq event stamp: 74939
[ 318.418272][ T2252] hardirqs last enabled at (74947): [] __up_console_sem+0x5a/0x70
[ 318.418566][ T2252] hardirqs last disabled at (74954): [] __up_console_sem+0x3f/0x70
[ 318.418790][ T2252] softirqs last enabled at (74788): [] handle_softirqs+0x5e5/0x8f0
[ 318.419015][ T2252] softirqs last disabled at (74739): [] __irq_exit_rcu+0x103/0x1c0
[ 318.419310][ T2252] ---[ end trace 0000000000000000 ]---
[ 330.921448][ C2] tun0: no available key for peer 3, key-id: 0
[ 331.165594][ C3] tun0: no available key for peer 6, key-id: 0
[ 341.461838][ T2659] iperf3 (2659) used greatest stack depth: 21984 bytes left
[ 343.322191][ T2753] tun0: deleting peer with id 1, reason 1
[ 343.405870][ T2757] tun1: deleting peer with id 1, reason 1
[ 346.303941][ T2805] tun0: deleting peer with id 2, reason 1
[ 346.391968][ T2809] tun2: deleting peer with id 2, reason 1
[ 351.516992][ T212] tun0: deleting peer with id 3, reason 2
[ 352.540682][ T212] tun0: deleting peer with id 4, reason 2
[ 352.541029][ T212] tun0: deleting peer with id 5, reason 2
[ 352.541243][ T212] tun0: deleting peer with id 6, reason 2
[ 357.660330][ T65] tun3: deleting peer with id 3, reason 2
[ 357.787707][ T295] tun4: deleting peer with id 4, reason 2
[ 357.852702][ T212] tun5: deleting peer with id 5, reason 2
[ 357.915701][ T295] tun6: deleting peer with id 6, reason 2