[    2.333478] ------------[ cut here ]------------
[    2.333532] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: psample.sh/157
[    2.333585] Modules linked in: netdevsim
[    2.333612] CPU: 1 UID: 0 PID: 157 Comm: psample.sh Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.333664] Tainted: [W]=WARN
[    2.333684] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.333721] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.333753] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
[    2.333855] RSP: 0018:ff700850804079d0 EFLAGS: 00010286
[    2.333883] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.333925] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff154826c1d41600
[    2.333967] RBP: 0000000000000000 R08: ff154826c1d02050 R09: ff154826c19cf030
[    2.334007] R10: ff154826c203e118 R11: fefefefefefefeff R12: 0000000000000000
[    2.334053] R13: 0000000000000010 R14: ff154826c203e000 R15: ff154826c1d41600
[    2.334100] FS:  00007f744d1e5b80(0000) GS:ff154827408da000(0000) knlGS:0000000000000000
[    2.334153] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.334193] CR2: 000055fab5cbe928 CR3: 0000000005270002 CR4: 0000000000771ef0
[    2.334238] PKRU: 55555554
[    2.334253] Call Trace:
[    2.334268]  <TASK>
[    2.334284]  rtmsg_ifinfo+0x3c/0xa0
[    2.334305]  register_netdevice+0x8e1/0xa70
[    2.334329]  nsim_create+0x3a9/0x3e0 [netdevsim]
[    2.334361]  __nsim_dev_port_add+0x1cc/0x420 [netdevsim]
[    2.334394]  nsim_drv_probe+0x667/0x760 [netdevsim]
[    2.334421]  really_probe+0xc9/0x290
[    2.334448]  ? driver_probe_device+0xe0/0xe0
[    2.334478]  __driver_probe_device+0x8d/0x160
[    2.334512]  driver_probe_device+0x1f/0xe0
[    2.334534]  __device_attach_driver+0x71/0x100
[    2.334565]  bus_for_each_drv+0x9d/0x100
[    2.334586]  __device_attach+0xb0/0x1b0
[    2.334609]  device_initial_probe+0x4a/0x70
[    2.334632]  bus_probe_device+0x3c/0xb0
[    2.334655]  device_add+0x675/0x8a0
[    2.334678]  new_device_store+0x19b/0x2b0 [netdevsim]
[    2.334702]  kernfs_fop_write_iter+0x151/0x200
[    2.334736]  vfs_write+0x257/0x5c0
[    2.334761]  ksys_write+0x7b/0x110
[    2.334784]  do_syscall_64+0x104/0xfc0
[    2.334808]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.334838] RIP: 0033:0x7f744d25708e
[    2.334862] Code: 4d 89 d8 e8 94 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 03 ff ff ff 0f 1f 00 f3 0f 1e fa
[    2.334962] RSP: 002b:00007ffcd07722a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    2.335008] RAX: ffffffffffffffda RBX: 00007f744d3d9580 RCX: 00007f744d25708e
[    2.335053] RDX: 0000000000000007 RSI: 000055fab5cbd920 RDI: 0000000000000001
[    2.335098] RBP: 00007ffcd07722b0 R08: 0000000000000000 R09: 0000000000000000
[    2.335147] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000007
[    2.335193] R13: 0000000000000007 R14: 000055fab5cbd920 R15: 0000000000000000
[    2.335241]  </TASK>
[    2.335254] ---[ end trace 0000000000000000 ]---
[    2.339741] ------------[ cut here ]------------
[    2.339773] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: ip/181
[    2.339825] Modules linked in: netdevsim
[    2.339848] CPU: 0 UID: 0 PID: 181 Comm: ip Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.339908] Tainted: [W]=WARN
[    2.339930] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.339974] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.340000] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
[    2.340102] RSP: 0018:ff7008508031bcc8 EFLAGS: 00010286
[    2.340132] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.340178] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff154826c3149c00
[    2.340214] RBP: 0000000000000000 R08: ff154826c31a1050 R09: ff154826c646602c
[    2.340260] R10: ff154826c6461118 R11: fefefefefefefeff R12: 0000000000000000
[    2.340306] R13: 0000000000000010 R14: ff154826c6461000 R15: ff154826c3149c00
[    2.340360] FS:  00007f2a030d2840(0000) GS:ff1548274085a000(0000) knlGS:0000000000000000
[    2.340416] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.340453] CR2: 0000000000479648 CR3: 000000000645c002 CR4: 0000000000771ef0
[    2.340498] PKRU: 55555554
[    2.340513] Call Trace:
[    2.340528]  <TASK>
[    2.340542]  rtmsg_ifinfo+0x3c/0xa0
[    2.340566]  register_netdevice+0x8e1/0xa70
[    2.340588]  register_netdev+0x1e/0x30
[    2.340609]  loopback_net_init+0x57/0xb0
[    2.340636]  ? vsock_sysctl_init_net+0xb6/0x140
[    2.340666]  ops_init+0x68/0x140
[    2.340689]  setup_net+0x85/0x150
[    2.340711]  copy_net_ns+0xf5/0x200
[    2.340735]  create_new_namespaces+0x117/0x2f0
[    2.340761]  unshare_nsproxy_namespaces+0x85/0xb0
[    2.340794]  ksys_unshare+0x346/0x5e0
[    2.340815]  __x64_sys_unshare+0x12/0x20
[    2.340838]  do_syscall_64+0x104/0xfc0
[    2.340860]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.340889] RIP: 0033:0x7f2a03394bcb
[    2.340912] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
[    2.341012] RSP: 002b:00007ffe679a1df8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    2.341061] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f2a03394bcb
[    2.341106] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    2.341158] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    2.341202] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe679a4020
[    2.341244] R13: 0000000000000001 R14: 00007f2a030d26f8 R15: 00007ffe679a4881
[    2.341294]  </TASK>
[    2.341310] ---[ end trace 0000000000000000 ]---
[    2.345107] ------------[ cut here ]------------
[    2.345157] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: devlink/183
[    2.345214] Modules linked in: netdevsim
[    2.345240] CPU: 3 UID: 0 PID: 183 Comm: devlink Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.345303] Tainted: [W]=WARN
[    2.345327] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.345362] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.345394] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
[    2.345497] RSP: 0018:ff70085080313908 EFLAGS: 00010286
[    2.345530] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.345576] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff154826c3149b00
[    2.345625] RBP: 0000000000000000 R08: ff154826c1d02050 R09: ff154826c19bc830
[    2.345671] R10: ff154826c203e118 R11: fefefefefefefeff R12: 0000000000000000
[    2.345715] R13: 0000000000000011 R14: ff154826c203e000 R15: ff154826c3149b00
[    2.345763] FS:  00007f5b951b0840(0000) GS:ff154827409da000(0000) knlGS:0000000000000000
[    2.345808] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.345843] CR2: 00007f5b953b7430 CR3: 000000000535b001 CR4: 0000000000771ef0
[    2.345885] PKRU: 55555554
[    2.345899] Call Trace:
[    2.345915]  <TASK>
[    2.345929]  unregister_netdevice_many_notify+0x595/0xa40
[    2.345959]  unregister_netdevice_queue+0x9e/0xd0
[    2.345988]  nsim_destroy+0x91/0x200 [netdevsim]
[    2.346020]  __nsim_dev_port_del+0x46/0x90 [netdevsim]
[    2.346053]  nsim_dev_reload_destroy+0x74/0x170 [netdevsim]
[    2.346082]  nsim_dev_reload_down+0x23/0x50 [netdevsim]
[    2.346114]  devlink_reload+0x75/0x250
[    2.346145]  devlink_nl_reload_doit+0x1df/0x6d0
[    2.346175]  ? devlink_get_from_attrs_lock+0xf0/0x250
[    2.346205]  genl_family_rcv_msg_doit+0x13f/0x190
[    2.346239]  genl_rcv_msg+0x1c8/0x300
[    2.346259]  ? devlink_nl_pre_doit_port+0x70/0x70
[    2.346290]  ? devlink_reload+0x250/0x250
[    2.346313]  ? devlink_nl_post_doit+0x20/0x20
[    2.346343]  ? genl_get_cmd+0x320/0x320
[    2.346365]  netlink_rcv_skb+0xca/0x140
[    2.346387]  genl_rcv+0x28/0x40
[    2.346411]  netlink_unicast+0x26b/0x3a0
[    2.346435]  netlink_sendmsg+0x1e2/0x430
[    2.346456]  __sys_sendto+0x194/0x220
[    2.346482]  __x64_sys_sendto+0x24/0x30
[    2.346502]  do_syscall_64+0x104/0xfc0
[    2.346524]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.346553] RIP: 0033:0x7f5b953ea08e
[    2.346577] Code: 4d 89 d8 e8 94 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 03 ff ff ff 0f 1f 00 f3 0f 1e fa
[    2.346674] RSP: 002b:00007fff9d660280 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.346717] RAX: ffffffffffffffda RBX: 00000000181fd980 RCX: 00007f5b953ea08e
[    2.346762] RDX: 0000000000000040 RSI: 00000000181fdba0 RDI: 0000000000000005
[    2.346803] RBP: 00007fff9d660290 R08: 00007f5b9569e980 R09: 000000000000000c
[    2.346848] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.346892] R13: 00000000181fd980 R14: 0000000000000000 R15: 0000000000000001
[    2.346938]  </TASK>
[    2.346951] ---[ end trace 0000000000000000 ]---
[    2.371237] ------------[ cut here ]------------
[    2.371284] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#3: devlink/183
[    2.371343] Modules linked in: netdevsim
[    2.371368] CPU: 3 UID: 0 PID: 183 Comm: devlink Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[    2.371437] Tainted: [W]=WARN
[    2.371457] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.371495] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[    2.371525] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
[    2.371624] RSP: 0018:ff70085080313888 EFLAGS: 00010286
[    2.371652] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[    2.371696] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff154826c1d40100
[    2.371742] RBP: 0000000000000000 R08: ff154826c1d02050 R09: ff154826c202b030
[    2.371787] R10: ff154826c203e118 R11: fefefefefefefeff R12: 0000000000000000
[    2.371831] R13: 0000000000000010 R14: ff154826c203e000 R15: ff154826c1d40100
[    2.371877] FS:  00007f5b951b0840(0000) GS:ff154827409da000(0000) knlGS:0000000000000000
[    2.371918] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.371957] CR2: 00007f5b953b7430 CR3: 000000000535b001 CR4: 0000000000771ef0
[    2.372001] PKRU: 55555554
[    2.372016] Call Trace:
[    2.372031]  <TASK>
[    2.372047]  rtmsg_ifinfo+0x3c/0xa0
[    2.372069]  register_netdevice+0x8e1/0xa70
[    2.372093]  nsim_create+0x3a9/0x3e0 [netdevsim]
[    2.372132]  __nsim_dev_port_add+0x1cc/0x420 [netdevsim]
[    2.372167]  nsim_dev_reload_up+0x1b0/0x260 [netdevsim]
[    2.372201]  devlink_reload+0xee/0x250
[    2.372225]  devlink_nl_reload_doit+0x1df/0x6d0
[    2.372251]  ? devlink_get_from_attrs_lock+0xf0/0x250
[    2.372281]  genl_family_rcv_msg_doit+0x13f/0x190
[    2.372311]  genl_rcv_msg+0x1c8/0x300
[    2.372333]  ? devlink_nl_pre_doit_port+0x70/0x70
[    2.372363]  ? devlink_reload+0x250/0x250
[    2.372385]  ? devlink_nl_post_doit+0x20/0x20
[    2.372417]  ? genl_get_cmd+0x320/0x320
[    2.372440]  netlink_rcv_skb+0xca/0x140
[    2.372460]  genl_rcv+0x28/0x40
[    2.372482]  netlink_unicast+0x26b/0x3a0
[    2.372505]  netlink_sendmsg+0x1e2/0x430
[    2.372528]  __sys_sendto+0x194/0x220
[    2.372549]  __x64_sys_sendto+0x24/0x30
[    2.372569]  do_syscall_64+0x104/0xfc0
[    2.372594]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.372621] RIP: 0033:0x7f5b953ea08e
[    2.372643] Code: 4d 89 d8 e8 94 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 03 ff ff ff 0f 1f 00 f3 0f 1e fa
[    2.372744] RSP: 002b:00007fff9d660280 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.372790] RAX: ffffffffffffffda RBX: 00000000181fd980 RCX: 00007f5b953ea08e
[    2.372832] RDX: 0000000000000040 RSI: 00000000181fdba0 RDI: 0000000000000005
[    2.372877] RBP: 00007fff9d660290 R08: 00007f5b9569e980 R09: 000000000000000c
[    2.372921] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    2.372964] R13: 00000000181fd980 R14: 0000000000000000 R15: 0000000000000001
[    2.373007]  </TASK>
[    2.373022] ---[ end trace 0000000000000000 ]---
[   26.446936] ------------[ cut here ]------------
[   26.446983] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: kworker/u16:1/64
[   26.447052] Modules linked in: netdevsim
[   26.447077] CPU: 0 UID: 0 PID: 64 Comm: kworker/u16:1 Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   26.447133] Tainted: [W]=WARN
[   26.447159] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.447192] Workqueue: netns cleanup_net
[   26.447213] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   26.447244] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
[   26.447348] RSP: 0018:ff70085080237ba0 EFLAGS: 00010286
[   26.447380] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   26.447426] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff154826c18d3800
[   26.447465] RBP: 0000000000000000 R08: ff154826c1d02050 R09: ff154826c30c8830
[   26.447509] R10: ff154826c203e118 R11: fefefefefefefeff R12: 0000000000000000
[   26.447553] R13: 0000000000000011 R14: ff154826c203e000 R15: ff154826c18d3800
[   26.447595] FS:  0000000000000000(0000) GS:ff1548274085a000(0000) knlGS:0000000000000000
[   26.447645] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.447685] CR2: 00007fe1a5550000 CR3: 000000003be42002 CR4: 0000000000771ef0
[   26.447727] PKRU: 55555554
[   26.447743] Call Trace:
[   26.447758]  <TASK>
[   26.447775]  unregister_netdevice_many_notify+0x595/0xa40
[   26.447807]  unregister_netdevice_queue+0x9e/0xd0
[   26.447836]  nsim_destroy+0x91/0x200 [netdevsim]
[   26.447868]  __nsim_dev_port_del+0x46/0x90 [netdevsim]
[   26.447898]  nsim_dev_reload_destroy+0x74/0x170 [netdevsim]
[   26.447928]  nsim_dev_reload_down+0x23/0x50 [netdevsim]
[   26.447955]  devlink_reload+0x75/0x250
[   26.447978]  devlink_pernet_pre_exit+0xe9/0x160
[   26.448007]  ops_undo_list+0x8a/0x240
[   26.448032]  cleanup_net+0x1d7/0x2e0
[   26.448057]  process_one_work+0x162/0x360
[   26.448083]  worker_thread+0x16e/0x2d0
[   26.448105]  ? rescuer_thread+0x510/0x510
[   26.448125]  kthread+0xe1/0x120
[   26.448150]  ? kthread_park+0xa0/0xa0
[   26.448170]  ret_from_fork+0x16d/0x250
[   26.448197]  ? kthread_park+0xa0/0xa0
[   26.448218]  ret_from_fork_asm+0x11/0x20
[   26.448241]  </TASK>
[   26.448256] ---[ end trace 0000000000000000 ]---
[   26.468200] ------------[ cut here ]------------
[   26.468242] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: kworker/u16:1/64
[   26.468303] Modules linked in: netdevsim
[   26.468330] CPU: 0 UID: 0 PID: 64 Comm: kworker/u16:1 Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   26.468391] Tainted: [W]=WARN
[   26.468416] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.468449] Workqueue: netns cleanup_net
[   26.468475] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   26.468504] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
[   26.468608] RSP: 0018:ff70085080237b20 EFLAGS: 00010286
[   26.468634] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   26.468676] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff154826c190ce00
[   26.468716] RBP: 0000000000000000 R08: ff154826c32675d0 R09: ff154826c6466030
[   26.468761] R10: ff154826c203e118 R11: fefefefefefefeff R12: 0000000000000000
[   26.468806] R13: 0000000000000010 R14: ff154826c203e000 R15: ff154826c190ce00
[   26.468854] FS:  0000000000000000(0000) GS:ff1548274085a000(0000) knlGS:0000000000000000
[   26.468900] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.468933] CR2: 00007f3754619708 CR3: 0000000003168003 CR4: 0000000000771ef0
[   26.468976] PKRU: 55555554
[   26.468991] Call Trace:
[   26.469007]  <TASK>
[   26.469023]  rtmsg_ifinfo+0x3c/0xa0
[   26.469049]  register_netdevice+0x8e1/0xa70
[   26.469069]  nsim_create+0x3a9/0x3e0 [netdevsim]
[   26.469098]  __nsim_dev_port_add+0x1cc/0x420 [netdevsim]
[   26.469128]  nsim_dev_reload_up+0x1b0/0x260 [netdevsim]
[   26.469155]  devlink_reload+0xee/0x250
[   26.469179]  devlink_pernet_pre_exit+0xe9/0x160
[   26.469210]  ops_undo_list+0x8a/0x240
[   26.469230]  cleanup_net+0x1d7/0x2e0
[   26.469250]  process_one_work+0x162/0x360
[   26.469274]  worker_thread+0x16e/0x2d0
[   26.469300]  ? rescuer_thread+0x510/0x510
[   26.469322]  kthread+0xe1/0x120
[   26.469352]  ? kthread_park+0xa0/0xa0
[   26.469376]  ret_from_fork+0x16d/0x250
[   26.469398]  ? kthread_park+0xa0/0xa0
[   26.469421]  ret_from_fork_asm+0x11/0x20
[   26.469446]  </TASK>
[   26.469462] ---[ end trace 0000000000000000 ]---
[   26.469564] ------------[ cut here ]------------
[   26.469593] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: psample.sh/157
[   26.469642] Modules linked in: netdevsim
[   26.469665] CPU: 0 UID: 0 PID: 157 Comm: psample.sh Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   26.469725] Tainted: [W]=WARN
[   26.469751] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.469788] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   26.469821] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
[   26.469915] RSP: 0018:ff70085080407b88 EFLAGS: 00010286
[   26.469942] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   26.469984] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff154826c190ce00
[   26.470040] RBP: 0000000000000000 R08: ff154826c32675d0 R09: ff154826c2033030
[   26.470081] R10: ff154826c203e118 R11: fefefefefefefeff R12: 0000000000000000
[   26.470131] R13: 0000000000000011 R14: ff154826c203e000 R15: ff154826c190ce00
[   26.470173] FS:  00007f744d1e5b80(0000) GS:ff1548274085a000(0000) knlGS:0000000000000000
[   26.470216] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.470245] CR2: 00007f3754619708 CR3: 0000000005270004 CR4: 0000000000771ef0
[   26.470293] PKRU: 55555554
[   26.470308] Call Trace:
[   26.470327]  <TASK>
[   26.470342]  unregister_netdevice_many_notify+0x595/0xa40
[   26.470374]  unregister_netdevice_queue+0x9e/0xd0
[   26.470402]  nsim_destroy+0x91/0x200 [netdevsim]
[   26.470433]  __nsim_dev_port_del+0x46/0x90 [netdevsim]
[   26.470465]  nsim_dev_reload_destroy+0x74/0x170 [netdevsim]
[   26.470495]  nsim_drv_remove+0x2f/0xb0 [netdevsim]
[   26.470526]  device_release_driver_internal+0x19a/0x200
[   26.470559]  bus_remove_device+0xed/0x1b0
[   26.470583]  ? device_remove_attrs+0xb3/0x100
[   26.470611]  device_del+0x158/0x450
[   26.470634]  device_unregister+0x12/0x30
[   26.470657]  del_device_store+0x122/0x190 [netdevsim]
[   26.470687]  kernfs_fop_write_iter+0x151/0x200
[   26.470714]  vfs_write+0x257/0x5c0
[   26.470737]  ksys_write+0x7b/0x110
[   26.470758]  do_syscall_64+0x104/0xfc0
[   26.470779]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   26.470805] RIP: 0033:0x7f744d25708e
[   26.470831] Code: 4d 89 d8 e8 94 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 03 ff ff ff 0f 1f 00 f3 0f 1e fa
[   26.470929] RSP: 002b:00007ffcd0772530 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   26.470970] RAX: ffffffffffffffda RBX: 00007f744d3d9580 RCX: 00007f744d25708e
[   26.471013] RDX: 0000000000000005 RSI: 000055fab5cbd920 RDI: 0000000000000001
[   26.471056] RBP: 00007ffcd0772540 R08: 0000000000000000 R09: 0000000000000000
[   26.471093] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
[   26.471128] R13: 0000000000000005 R14: 000055fab5cbd920 R15: 0000000000000000
[   26.471169]  </TASK>
[   26.471182] ---[ end trace 0000000000000000 ]---
[   26.471320] ------------[ cut here ]------------
[   26.471353] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: kworker/u16:1/64
[   26.471413] Modules linked in: netdevsim
[   26.471436] CPU: 0 UID: 0 PID: 64 Comm: kworker/u16:1 Tainted: G        W           7.1.0-rc4-virtme #1 PREEMPT(lazy) 
[   26.471489] Tainted: [W]=WARN
[   26.471511] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.471539] Workqueue: netns cleanup_net
[   26.471567] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[   26.471594] Code: 80 00 00 00 e8 09 d9 ff ff 48 83 c4 38 85 c0 75 18 48 83 c4 08 4c 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 8b 48 08 eb b4 90 <0f> 0b 90 ba 02 00 00 00 4c 89 fe 31 ff e8 56 a6 fb ff b9 a6 ff ff
[   26.471688] RSP: 0018:ff70085080237c78 EFLAGS: 00010286
[   26.471715] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[   26.471768] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff154826c2a82900
[   26.471812] RBP: 0000000000000000 R08: ff154826c31a1050 R09: ff154826c646802c
[   26.471854] R10: ff154826c6461118 R11: fefefefefefefeff R12: 0000000000000000
[   26.471895] R13: 0000000000000011 R14: ff154826c6461000 R15: ff154826c2a82900
[   26.471939] FS:  0000000000000000(0000) GS:ff1548274085a000(0000) knlGS:0000000000000000
[   26.471981] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.472016] CR2: 00007f3754619708 CR3: 0000000005270004 CR4: 0000000000771ef0
[   26.472058] PKRU: 55555554
[   26.472070] Call Trace:
[   26.472085]  <TASK>
[   26.472100]  unregister_netdevice_many_notify+0x595/0xa40
[   26.472126]  default_device_exit_batch+0x328/0x3a0
[   26.472153]  ops_undo_list+0x10b/0x240
[   26.472175]  cleanup_net+0x1d7/0x2e0
[   26.472202]  process_one_work+0x162/0x360
[   26.472223]  worker_thread+0x16e/0x2d0
[   26.472246]  ? rescuer_thread+0x510/0x510
[   26.472268]  kthread+0xe1/0x120
[   26.472290]  ? kthread_park+0xa0/0xa0
[   26.472311]  ret_from_fork+0x16d/0x250
[   26.472335]  ? kthread_park+0xa0/0xa0
[   26.472359]  ret_from_fork_asm+0x11/0x20
[   26.472386]  </TASK>
[   26.472399] ---[ end trace 0000000000000000 ]---