[ 2107.405851][ T8942] 8021q: adding VLAN 0 to HW filter on device eth0
[ 2107.547477][ T8949] drop_monitor: Initializing network drop monitor service
[ 2118.254677][ T8961] ------------[ cut here ]------------
[ 2118.254949][ T8961] WARNING: drivers/net/netdevsim/netdev.c:1234 at nsim_destroy+0x128/0x780 [netdevsim], CPU#3: echo/8961
[ 2118.255283][ T8961] Modules linked in: drop_monitor netdevsim sch_fq bonding ip6_gre gre act_mirred act_tunnel_key bareudp mpls_gso mpls_iptunnel mpls_router pktgen xt_conntrack sctp_diag sctp cls_matchall act_gact cls_flower sch_ingress vxlan openvswitch psample nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nsh ipt_REJECT nf_reject_ipv4 nft_compat nf_tables [last unloaded: test_bpf]
[ 2118.256583][ T8961] CPU: 3 UID: 0 PID: 8961 Comm: echo Not tainted 7.0.0-rc2-virtme #1 PREEMPT(full) 
[ 2118.256855][ T8961] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2118.257045][ T8961] RIP: 0010:nsim_destroy+0x128/0x780 [netdevsim]
[ 2118.257251][ T8961] Code: 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 0f 85 e5 05 00 00 48 8b 3b e8 94 83 37 c9 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 b2 de 75 c8
[ 2118.257866][ T8961] RSP: 0018:ffa00000007879b8 EFLAGS: 00010293
[ 2118.258061][ T8961] RAX: 0000000000000000 RBX: ff1100001d4dad40 RCX: ff1100001d4db488
[ 2118.258303][ T8961] RDX: 0000000000000000 RSI: 0000000000000000 RDI: dffffc0000000000
[ 2118.258529][ T8961] RBP: ff1100001d4db488 R08: ff1100001d4db488 R09: 0000000000000000
[ 2118.258754][ T8961] R10: 1fe2200003a9b691 R11: 0000000000000001 R12: ff11000002950c98
[ 2118.258983][ T8961] R13: dffffc0000000000 R14: ff11000002950800 R15: ffffffffc0927380
[ 2118.259210][ T8961] FS:  00007fb1fd4eb780(0000) GS:ff110000df355000(0000) knlGS:0000000000000000
[ 2118.259478][ T8961] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2118.259672][ T8961] CR2: 00005557d78af5d8 CR3: 000000000973b004 CR4: 0000000000771ef0
[ 2118.259898][ T8961] PKRU: 55555554
[ 2118.260032][ T8961] Call Trace:
[ 2118.260149][ T8961]  <TASK>
[ 2118.260234][ T8961]  ? rcu_is_watching+0x15/0xd0
[ 2118.260396][ T8961]  __nsim_dev_port_del+0x17c/0x2c0 [netdevsim]
[ 2118.260589][ T8961]  ? devl_lock_is_held+0x1a/0x20
[ 2118.260741][ T8961]  nsim_dev_reload_destroy+0xd0/0x470 [netdevsim]
[ 2118.260931][ T8961]  nsim_drv_remove+0x4e/0x1e0 [netdevsim]
[ 2118.261085][ T8961]  device_release_driver_internal+0x3b6/0x570
[ 2118.261284][ T8961]  ? sysfs_file_ops+0x140/0x140
[ 2118.261439][ T8961]  bus_remove_device+0x1ec/0x3f0
[ 2118.261591][ T8961]  ? sysfs_file_ops+0x140/0x140
[ 2118.261740][ T8961]  device_del+0x324/0x8c0
[ 2118.261854][ T8961]  ? __device_link_del+0x500/0x500
[ 2118.262006][ T8961]  ? sysfs_file_ops+0x140/0x140
[ 2118.262157][ T8961]  device_unregister+0x17/0xb0
[ 2118.262317][ T8961]  del_device_store+0x2fb/0x580 [netdevsim]
[ 2118.262504][ T8961]  ? sysfs_file_kobj+0xb3/0x1e0
[ 2118.262653][ T8961]  ? nsim_bus_dev_numvfs_show+0x80/0x80 [netdevsim]
[ 2118.262845][ T8961]  ? sysfs_file_kobj+0xbd/0x1e0
[ 2118.262997][ T8961]  ? sysfs_kf_write+0x65/0x160
[ 2118.263146][ T8961]  kernfs_fop_write_iter+0x335/0x510
[ 2118.263304][ T8961]  ? kernfs_ops+0xf0/0xf0
[ 2118.263418][ T8961]  new_sync_write+0x308/0x6f0
[ 2118.263570][ T8961]  ? new_sync_read+0x6f0/0x6f0
[ 2118.263728][ T8961]  ? lock_acquire.part.0+0xbc/0x260
[ 2118.263883][ T8961]  ? ksys_write+0xff/0x200
[ 2118.264036][ T8961]  vfs_write+0x65e/0xbb0
[ 2118.264163][ T8961]  ksys_write+0xff/0x200
[ 2118.264284][ T8961]  ? __ia32_sys_read+0xc0/0xc0
[ 2118.264437][ T8961]  ? do_user_addr_fault+0x799/0xdb0
[ 2118.264594][ T8961]  ? rcu_is_watching+0x15/0xd0
[ 2118.264746][ T8961]  ? rcu_is_watching+0x15/0xd0
[ 2118.264902][ T8961]  do_syscall_64+0x117/0xfc0
[ 2118.265053][ T8961]  ? exc_page_fault+0xaf/0xd0
[ 2118.265206][ T8961]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 2118.265395][ T8961] RIP: 0033:0x7fb1fd55cc5e
[ 2118.265553][ T8961] 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
[ 2118.266089][ T8961] RSP: 002b:00007ffe759b9cc0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2118.266324][ T8961] RAX: ffffffffffffffda RBX: 00007fb1fd6d85c0 RCX: 00007fb1fd55cc5e
[ 2118.266547][ T8961] RDX: 0000000000000005 RSI: 00005557d78ae5d0 RDI: 0000000000000001
[ 2118.266773][ T8961] RBP: 00007ffe759b9cd0 R08: 0000000000000000 R09: 0000000000000000
[ 2118.267000][ T8961] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[ 2118.267229][ T8961] R13: 0000000000000005 R14: 00005557d78ae5d0 R15: 00007ffe759b9fd0
[ 2118.267462][ T8961]  </TASK>
[ 2118.267576][ T8961] irq event stamp: 34313
[ 2118.267688][ T8961] hardirqs last  enabled at (34321): [<ffffffff88527efa>] __up_console_sem+0x5a/0x70
[ 2118.267956][ T8961] hardirqs last disabled at (34328): [<ffffffff88527edf>] __up_console_sem+0x3f/0x70
[ 2118.268219][ T8961] softirqs last  enabled at (33812): [<ffffffff8839da5c>] handle_softirqs+0x60c/0x920
[ 2118.268486][ T8961] softirqs last disabled at (33547): [<ffffffff8839e1f2>] irq_exit_rcu+0xa2/0xf0
[ 2118.268750][ T8961] ---[ end trace 0000000000000000 ]---
[ 2118.945125][ T8986] 8021q: adding VLAN 0 to HW filter on device eth0