[   20.165113][  T209] netdevsim netdevsim855 eni855np1: renamed from eth0
[   20.619940][  T234] ethtool (234) used greatest stack depth: 23720 bytes left
[   21.123557][  T271] 8021q: adding VLAN 0 to HW filter on device eni855np1
[   22.303176][  T197] ------------[ cut here ]------------
[   22.303438][  T197] WARNING: drivers/net/netdevsim/netdev.c:1234 at nsim_destroy+0x128/0x7b0 [netdevsim], CPU#0: tc-mq-visibilit/197
[   22.303796][  T197] Modules linked in: netdevsim
[   22.304000][  T197] CPU: 0 UID: 0 PID: 197 Comm: tc-mq-visibilit Not tainted 7.0.0-rc2-virtme #1 PREEMPT(full) 
[   22.304320][  T197] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.304521][  T197] RIP: 0010:nsim_destroy+0x128/0x7b0 [netdevsim]
[   22.304726][  T197] 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 ac de 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 f0 dd
[   22.305269][  T197] RSP: 0018:ffa00000009179b8 EFLAGS: 00010293
[   22.305472][  T197] RAX: 0000000000000000 RBX: ff1100000926ad00 RCX: ff1100000926b448
[   22.305704][  T197] RDX: 0000000000000000 RSI: 0000000000000000 RDI: dffffc0000000000
[   22.305932][  T197] RBP: ff1100000926b448 R08: ff1100000926b448 R09: 0000000000000000
[   22.306170][  T197] R10: 1fe220000124d689 R11: 0000000000000001 R12: ff1100000b54d498
[   22.306402][  T197] R13: dffffc0000000000 R14: ff1100000b54d000 R15: ffffffffc0566380
[   22.306632][  T197] FS:  00007f9479bd4bc0(0000) GS:ff11000093885000(0000) knlGS:0000000000000000
[   22.306904][  T197] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.307216][  T197] CR2: 0000558ed1275808 CR3: 0000000004bab001 CR4: 0000000000771ef0
[   22.307456][  T197] PKRU: 55555554
[   22.307572][  T197] Call Trace:
[   22.307697][  T197]  <TASK>
[   22.307776][  T197]  ? rcu_is_watching+0x15/0xd0
[   22.307937][  T197]  __nsim_dev_port_del+0x17c/0x2c0 [netdevsim]
[   22.308128][  T197]  ? devl_lock_is_held+0x1a/0x20
[   22.308286][  T197]  nsim_dev_reload_destroy+0xd0/0x470 [netdevsim]
[   22.308490][  T197]  nsim_drv_remove+0x4e/0x1e0 [netdevsim]
[   22.308641][  T197]  device_release_driver_internal+0x3b6/0x570
[   22.308835][  T197]  ? sysfs_file_ops+0x140/0x140
[   22.308987][  T197]  bus_remove_device+0x1ec/0x3f0
[   22.309136][  T197]  ? sysfs_file_ops+0x140/0x140
[   22.309310][  T197]  device_del+0x324/0x8c0
[   22.309427][  T197]  ? __device_link_del+0x500/0x500
[   22.309579][  T197]  ? sysfs_file_ops+0x140/0x140
[   22.309734][  T197]  device_unregister+0x17/0xb0
[   22.309886][  T197]  del_device_store+0x2fb/0x580 [netdevsim]
[   22.310076][  T197]  ? sysfs_file_kobj+0xb3/0x1e0
[   22.310234][  T197]  ? nsim_bus_dev_numvfs_show+0x80/0x80 [netdevsim]
[   22.310423][  T197]  ? sysfs_file_kobj+0xbd/0x1e0
[   22.310571][  T197]  ? sysfs_kf_write+0x65/0x160
[   22.310725][  T197]  kernfs_fop_write_iter+0x335/0x510
[   22.310875][  T197]  ? kernfs_ops+0xf0/0xf0
[   22.310989][  T197]  new_sync_write+0x308/0x6f0
[   22.311143][  T197]  ? new_sync_read+0x6f0/0x6f0
[   22.311301][  T197]  ? lock_acquire.part.0+0xbc/0x260
[   22.311468][  T197]  ? ksys_write+0xff/0x200
[   22.311622][  T197]  vfs_write+0x65e/0xbb0
[   22.311742][  T197]  ksys_write+0xff/0x200
[   22.311857][  T197]  ? __ia32_sys_read+0xc0/0xc0
[   22.312006][  T197]  ? do_user_addr_fault+0x799/0xdb0
[   22.312162][  T197]  ? rcu_is_watching+0x15/0xd0
[   22.312312][  T197]  ? rcu_is_watching+0x15/0xd0
[   22.312465][  T197]  do_syscall_64+0x117/0xfc0
[   22.312617][  T197]  ? exc_page_fault+0xaf/0xd0
[   22.312770][  T197]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   22.312956][  T197] RIP: 0033:0x7f9479c44c5e
[   22.313113][  T197] 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
[   22.313653][  T197] RSP: 002b:00007fff9f4dec20 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   22.313884][  T197] RAX: ffffffffffffffda RBX: 00007f9479dc05c0 RCX: 00007f9479c44c5e
[   22.314107][  T197] RDX: 0000000000000004 RSI: 0000558ed1274800 RDI: 0000000000000001
[   22.314339][  T197] RBP: 00007fff9f4dec30 R08: 0000000000000000 R09: 0000000000000000
[   22.314564][  T197] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[   22.314805][  T197] R13: 0000000000000004 R14: 0000558ed1274800 R15: 0000558ed126f2d0
[   22.315034][  T197]  </TASK>
[   22.315148][  T197] irq event stamp: 179875
[   22.315270][  T197] hardirqs last  enabled at (179885): [<ffffffff9d716daa>] __up_console_sem+0x5a/0x70
[   22.315542][  T197] hardirqs last disabled at (179892): [<ffffffff9d716d8f>] __up_console_sem+0x3f/0x70
[   22.315807][  T197] softirqs last  enabled at (179592): [<ffffffff9d58e93c>] handle_softirqs+0x60c/0x920
[   22.316076][  T197] softirqs last disabled at (179559): [<ffffffff9d58f0d2>] irq_exit_rcu+0xa2/0xf0
[   22.316347][  T197] ---[ end trace 0000000000000000 ]---
[   22.563243][  T212] netdevsim netdevsim855 eni855np1: renamed from eth0
[   23.670806][  T419] 8021q: adding VLAN 0 to HW filter on device eni855np1