[ 323.594725][ T2136] ------------[ cut here ]------------
[ 323.594893][ T2136] workqueue: ovpn is using neither WQ_PERCPU or WQ_UNBOUND. Setting WQ_PERCPU.
[ 323.595096][ T2136] WARNING: kernel/workqueue.c:5851 at __alloc_workqueue+0xa8b/0xe40, CPU#3: modprobe/2136
[ 323.595310][ T2136] Modules linked in: ovpn(+) ppp_deflate zlib_deflate bsd_comp ppp_async crc_ccitt pppoe 8021q l2tp_ppp l2tp_core ip6_udp_tunnel udp_tunnel pppox ppp_generic slhc
[ 323.595998][ T2136] CPU: 3 UID: 0 PID: 2136 Comm: modprobe Not tainted 7.2.0-rc6-virtme #1 PREEMPT(full)
[ 323.596216][ T2136] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 323.596454][ T2136] RIP: 0010:__alloc_workqueue+0xa8f/0xe40
[ 323.596588][ T2136] 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
[ 323.597097][ T2136] RSP: 0018:ffa00000049177f0 EFLAGS: 00010246
[ 323.597251][ T2136] RAX: 0000000000000004 RBX: ffffffffc0611b60 RCX: 1ff4000000922eea
[ 323.597436][ T2136] RDX: 0000000000000000 RSI: ff11000010813970 RDI: ffffffff932e81e0
[ 323.597698][ T2136] RBP: 0000000000000000 R08: ffffffffc0611b64 R09: 0000000000000000
[ 323.597877][ T2136] R10: 0000000000000000 R11: ff11000010813990 R12: ffa0000004917890
[ 323.598135][ T2136] R13: 0000000000000000 R14: ff11000010813800 R15: ffffffffc060aac0
[ 323.598321][ T2136] FS: 00007f198e80ebc0(0000) GS:ff110000a1648000(0000) knlGS:0000000000000000
[ 323.598542][ T2136] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 323.598769][ T2136] CR2: 00007ffe216dd378 CR3: 0000000018ef1001 CR4: 0000000000771ef0
[ 323.598948][ T2136] PKRU: 55555554
[ 323.599038][ T2136] Call Trace:
[ 323.599130][ T2136]
[ 323.599270][ T2136] ? pppox_exit+0x890/0x890 [pppox]
[ 323.599397][ T2136] alloc_workqueue_noprof+0xb3/0x100
[ 323.599523][ T2136] ? alloc_workqueue_lockdep_map+0x130/0x130
[ 323.599674][ T2136] ? do_one_initcall+0x11a/0x4f0
[ 323.599871][ T2136] ovpn_init+0x1f/0xa0 [ovpn]
[ 323.599992][ T2136] do_one_initcall+0x12b/0x4f0
[ 323.600111][ T2136] ? trace_event_raw_event_initcall_level+0x280/0x280
[ 323.600259][ T2136] ? kasan_save_track+0x14/0x30
[ 323.600460][ T2136] ? do_init_module+0xae/0x8a0
[ 323.600584][ T2136] ? kasan_unpoison+0x44/0x70
[ 323.600703][ T2136] do_init_module+0x2ad/0x8a0
[ 323.600823][ T2136] ? lockdep_hardirqs_on+0x8c/0x130
[ 323.601017][ T2136] ? free_module+0x4a0/0x4a0
[ 323.601134][ T2136] ? kfree+0x123/0x5a0
[ 323.601227][ T2136] load_module+0x13fa/0x1ae0
[ 323.601357][ T2136] ? layout_and_allocate.isra.0+0x680/0x680
[ 323.601583][ T2136] ? __ia32_sys_fsconfig+0x180/0x180
[ 323.601703][ T2136] ? backing_file_read_iter+0x541/0x790
[ 323.601824][ T2136] init_module_from_file+0x11f/0x1a0
[ 323.601943][ T2136] ? __do_sys_init_module+0x220/0x220
[ 323.602135][ T2136] ? __lock_acquire+0x518/0xc20
[ 323.602255][ T2136] ? ovl_set_dir_cache+0x20/0x50
[ 323.603050][ T2136] ? __rwlock_init+0x150/0x150
[ 323.603171][ T2136] ? do_raw_spin_unlock+0x59/0x250
[ 323.603290][ T2136] idempotent_init_module+0x37b/0x7c0
[ 323.603485][ T2136] ? init_module_from_file+0x1a0/0x1a0
[ 323.603609][ T2136] ? rcu_is_watching+0x15/0xd0
[ 323.603727][ T2136] ? cap_capable+0x1d7/0x3d0
[ 323.603848][ T2136] __x64_sys_finit_module+0xdf/0x190
[ 323.603967][ T2136] ? trace_irq_enable.constprop.0+0x9b/0x160
[ 323.604115][ T2136] do_syscall_64+0x117/0x590
[ 323.604233][ T2136] ? trace_hardirqs_off+0xd/0x30
[ 323.604422][ T2136] ? exc_page_fault+0xee/0x100
[ 323.604544][ T2136] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 323.604689][ T2136] RIP: 0033:0x7f198e90437d
[ 323.604815][ T2136] 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
[ 323.605241][ T2136] RSP: 002b:00007ffe216e0368 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 323.605497][ T2136] RAX: ffffffffffffffda RBX: 000056403d7ae9c0 RCX: 00007f198e90437d
[ 323.605678][ T2136] RDX: 0000000000000000 RSI: 0000563fff4eaffd RDI: 0000000000000005
[ 323.605859][ T2136] RBP: 00007ffe216e0400 R08: 0000000000000000 R09: 0000000000000000
[ 323.606036][ T2136] R10: 0000000000000000 R11: 0000000000000246 R12: 0000563fff4eaffd
[ 323.606216][ T2136] R13: 000056403d7aeae0 R14: 0000000000040000 R15: 0000000000000000
[ 323.606473][ T2136]
[ 323.606567][ T2136] irq event stamp: 81227
[ 323.606658][ T2136] hardirqs last enabled at (81235): [] __up_console_sem+0x5a/0x70
[ 323.606866][ T2136] hardirqs last disabled at (81242): [] __up_console_sem+0x3f/0x70
[ 323.607072][ T2136] softirqs last enabled at (81216): [] handle_softirqs+0x5e5/0x8f0
[ 323.607282][ T2136] softirqs last disabled at (81103): [] __irq_exit_rcu+0x103/0x1c0
[ 323.607567][ T2136] ---[ end trace 0000000000000000 ]---
[ 346.282142][ T2541] iperf3 (2541) used greatest stack depth: 22704 bytes left
[ 348.081463][ T2635] tun0: deleting peer with id 1, reason 1
[ 348.164112][ T2639] tun1: deleting peer with id 1, reason 1
[ 350.994801][ T2687] tun0: deleting peer with id 2, reason 1
[ 351.088181][ T2691] tun2: deleting peer with id 2, reason 1
[ 356.147528][ T53] tun0: deleting peer with id 4, reason 2
[ 356.148052][ T53] tun0: deleting peer with id 3, reason 2
[ 356.148246][ T53] tun0: deleting peer with id 5, reason 2
[ 357.171448][ T53] tun0: deleting peer with id 6, reason 2
[ 362.291856][ T53] tun3: deleting peer with id 3, reason 2
[ 362.355381][ T53] tun4: deleting peer with id 4, reason 2
[ 362.418397][ T52] tun5: deleting peer with id 5, reason 2
[ 362.547375][ T53] tun6: deleting peer with id 6, reason 2