[   20.205499][  T200] netconsole: network logging started
[   20.729409][  T212] netdevsim netdevsim679 eni679np1: renamed from eth0
[   20.738622][  T214] netdevsim netdevsim427 eni427np1: renamed from eth1
[   21.258165][  T235] 8021q: adding VLAN 0 to HW filter on device eni679np1
[   21.323447][  T238] 8021q: adding VLAN 0 to HW filter on device eni427np1
[   21.429187][  T188] printk: console [netcon_ext0] enabled
[   21.429421][  T188] netconsole: netconsole: local port 6665
[   21.429608][  T188] netconsole: netconsole: local IPv4 address 192.0.2.1
[   21.429834][  T188] netconsole: netconsole: interface name 'eni427np1'
[   21.430017][  T188] netconsole: netconsole: local ethernet address '00:00:00:00:00:00'
[   21.430230][  T188] netconsole: netconsole: remote port 6666
[   21.430397][  T188] netconsole: netconsole: remote IPv4 address 192.0.2.2
[   21.430563][  T188] netconsole: netconsole: remote ethernet address ea:6c:90:27:41:9e
[   21.437063][  T188] netconsole: network logging started
[   30.827712][  T188] printk: console [netcon_ext0] disabled
[   31.020376][  T188] ------------[ cut here ]------------
[   31.020667][  T188] WARNING: drivers/net/netdevsim/netdev.c:1234 at nsim_destroy+0x128/0x7b0 [netdevsim], CPU#2: bash/188
[   31.021079][  T188] Modules linked in: netconsole netdevsim
[   31.021346][  T188] CPU: 2 UID: 0 PID: 188 Comm: bash Not tainted 7.0.0-rc2-virtme #1 PREEMPT(full) 
[   31.021766][  T188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.022021][  T188] RIP: 0010:nsim_destroy+0x128/0x7b0 [netdevsim]
[   31.022302][  T188] Code: 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 0f 85 47 06 00 00 48 8b 3b e8 84 17 ec c6 31 c0 48 8d ab 48 07 00 00 eb 07 90 <0f> 0b 90 83 c0 01 0f b7 d0 be 00 10 00 00 48 89 ef e8 e2 22 30 c6
[   31.022912][  T188] RSP: 0018:ffa00000008f79b8 EFLAGS: 00010293
[   31.023190][  T188] RAX: 0000000000000000 RBX: ff1100000a60ad00 RCX: ff1100000a60b448
[   31.023475][  T188] RDX: 0000000000000000 RSI: 0000000000000000 RDI: dffffc0000000000
[   31.023759][  T188] RBP: ff1100000a60b448 R08: ff1100000a60b448 R09: 0000000000000000
[   31.024070][  T188] R10: 1fe22000014c1689 R11: 0000000000000001 R12: ff1100000c336c98
[   31.024367][  T188] R13: dffffc0000000000 R14: ff1100000c336800 R15: ffffffffc04ae380
[   31.024651][  T188] FS:  00007f2406a0abc0(0000) GS:ff110000ab585000(0000) knlGS:0000000000000000
[   31.024976][  T188] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.025264][  T188] CR2: 000055c9d4546b4c CR3: 000000000dc24006 CR4: 0000000000771ef0
[   31.025555][  T188] PKRU: 55555554
[   31.025724][  T188] Call Trace:
[   31.025893][  T188]  <TASK>
[   31.026031][  T188]  ? rcu_is_watching+0x15/0xd0
[   31.026274][  T188]  __nsim_dev_port_del+0x17c/0x2c0 [netdevsim]
[   31.026526][  T188]  ? devl_lock_is_held+0x1a/0x20
[   31.026732][  T188]  nsim_dev_reload_destroy+0xd0/0x470 [netdevsim]
[   31.026986][  T188]  nsim_drv_remove+0x4e/0x1e0 [netdevsim]
[   31.027220][  T188]  device_release_driver_internal+0x3b6/0x570
[   31.027469][  T188]  ? sysfs_file_ops+0x140/0x140
[   31.027676][  T188]  bus_remove_device+0x1ec/0x3f0
[   31.027889][  T188]  ? sysfs_file_ops+0x140/0x140
[   31.028130][  T188]  device_del+0x324/0x8c0
[   31.028312][  T188]  ? __device_link_del+0x500/0x500
[   31.028528][  T188]  ? sysfs_file_ops+0x140/0x140
[   31.028736][  T188]  device_unregister+0x17/0xb0
[   31.028948][  T188]  del_device_store+0x2fb/0x580 [netdevsim]
[   31.029221][  T188]  ? sysfs_file_kobj+0xb3/0x1e0
[   31.029433][  T188]  ? nsim_bus_dev_numvfs_show+0x80/0x80 [netdevsim]
[   31.029686][  T188]  ? sysfs_file_kobj+0xbd/0x1e0
[   31.029899][  T188]  ? sysfs_kf_write+0x65/0x160
[   31.030138][  T188]  kernfs_fop_write_iter+0x335/0x510
[   31.030360][  T188]  ? kernfs_ops+0xf0/0xf0
[   31.030532][  T188]  new_sync_write+0x308/0x6f0
[   31.030746][  T188]  ? new_sync_read+0x6f0/0x6f0
[   31.030958][  T188]  ? lock_acquire.part.0+0xbc/0x260
[   31.031199][  T188]  ? ksys_write+0xff/0x200
[   31.031417][  T188]  vfs_write+0x65e/0xbb0
[   31.031591][  T188]  ksys_write+0xff/0x200
[   31.031762][  T188]  ? __ia32_sys_read+0xc0/0xc0
[   31.031972][  T188]  ? do_raw_spin_unlock+0x59/0x250
[   31.032214][  T188]  ? rcu_is_watching+0x15/0xd0
[   31.032429][  T188]  do_syscall_64+0x117/0xfc0
[   31.032644][  T188]  ? exc_page_fault+0xaf/0xd0
[   31.032856][  T188]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   31.033122][  T188] RIP: 0033:0x7f2406a7ac5e
[   31.033350][  T188] Code: 4d 89 d8 e8 34 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
[   31.033966][  T188] RSP: 002b:00007ffc67075910 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   31.034296][  T188] RAX: ffffffffffffffda RBX: 00007f2406bf65c0 RCX: 00007f2406a7ac5e
[   31.034588][  T188] RDX: 0000000000000004 RSI: 000055c9d459a690 RDI: 0000000000000001
[   31.034880][  T188] RBP: 00007ffc67075920 R08: 0000000000000000 R09: 0000000000000000
[   31.035214][  T188] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[   31.035505][  T188] R13: 0000000000000004 R14: 000055c9d459a690 R15: 000055c9d4598e80
[   31.035803][  T188]  </TASK>
[   31.035978][  T188] irq event stamp: 665401
[   31.036179][  T188] hardirqs last  enabled at (665413): [<ffffffff85b16daa>] __up_console_sem+0x5a/0x70
[   31.036519][  T188] hardirqs last disabled at (665422): [<ffffffff85b16d8f>] __up_console_sem+0x3f/0x70
[   31.036849][  T188] softirqs last  enabled at (664880): [<ffffffff8598e93c>] handle_softirqs+0x60c/0x920
[   31.037215][  T188] softirqs last disabled at (664875): [<ffffffff8598f0d2>] irq_exit_rcu+0xa2/0xf0
[   31.037547][  T188] ---[ end trace 0000000000000000 ]---