[ 456.914124] ------------[ cut here ]------------
[ 456.914172] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: unshare/602
[ 456.914229] Modules linked in:
[ 456.914253] CPU: 0 UID: 0 PID: 602 Comm: unshare Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 456.914312] Tainted: [W]=WARN
[ 456.914335] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 456.914372] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 456.914404] Code: 80 00 00 00 e8 59 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 76 b2 fb ff b9 a6 ff ff
[ 456.914513] RSP: 0018:ff71f0c380977cc8 EFLAGS: 00010286
[ 456.914543] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 456.914585] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108182a800
[ 456.914628] RBP: 0000000000000000 R08: ff23231081942110 R09: ff232310819bb02c
[ 456.914667] R10: ff2323108448a118 R11: fefefefefefefeff R12: 0000000000000000
[ 456.914708] R13: 0000000000000010 R14: ff2323108448a000 R15: ff2323108182a800
[ 456.914751] FS: 00007faada610740(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 456.914796] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 456.914825] CR2: 00007faada7d2280 CR3: 0000000004667005 CR4: 0000000000771ef0
[ 456.914864] PKRU: 55555554
[ 456.914879] Call Trace:
[ 456.914894]
[ 456.914910] rtmsg_ifinfo+0x3c/0xa0
[ 456.914933] register_netdevice+0x889/0x9f0
[ 456.914955] register_netdev+0x1e/0x30
[ 456.914977] loopback_net_init+0x57/0xb0
[ 456.915004] ? vsock_sysctl_init_net+0xb6/0x140
[ 456.915033] ops_init+0x68/0x140
[ 456.915057] setup_net+0x85/0x150
[ 456.915078] copy_net_ns+0xf5/0x200
[ 456.915098] create_new_namespaces+0x117/0x2f0
[ 456.915129] unshare_nsproxy_namespaces+0x85/0xb0
[ 456.915158] ksys_unshare+0x346/0x5e0
[ 456.915181] __x64_sys_unshare+0x12/0x20
[ 456.915204] do_syscall_64+0x104/0xfc0
[ 456.915226] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 456.915252] RIP: 0033:0x7faada70bbcb
[ 456.915276] 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
[ 456.915377] RSP: 002b:00007ffe18e26ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[ 456.915425] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faada70bbcb
[ 456.915468] RDX: 0000000000000000 RSI: 00007ffe18e26a50 RDI: 0000000040000000
[ 456.915508] RBP: 00007ffe18e27070 R08: 00007ffe18e26c40 R09: 0000000000000000
[ 456.915550] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[ 456.915596] R13: 0000000000000000 R14: 00000000ffffffff R15: 00005565f56dbb68
[ 456.915638]
[ 456.915650] ---[ end trace 0000000000000000 ]---
[ 456.916233] ------------[ cut here ]------------
[ 456.916265] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/602
[ 456.916318] Modules linked in:
[ 456.916338] CPU: 0 UID: 0 PID: 602 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 456.916401] Tainted: [W]=WARN
[ 456.916422] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 456.916461] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 456.916490] Code: 80 00 00 00 e8 59 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 76 b2 fb ff b9 a6 ff ff
[ 456.916589] RSP: 0018:ff71f0c380977d68 EFLAGS: 00010286
[ 456.916619] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 456.916666] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108182a800
[ 456.916709] RBP: 0000000000000000 R08: ff232310818f4250 R09: ff23231082063030
[ 456.916750] R10: ff23231083120118 R11: fefefefefefefeff R12: 0000000000000000
[ 456.916792] R13: 0000000000000010 R14: ff23231083120000 R15: ff2323108182a800
[ 456.916839] FS: 0000000009cdd400(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 456.916885] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 456.916919] CR2: 00007f8639cff000 CR3: 0000000001963006 CR4: 0000000000771ef0
[ 456.916961] PKRU: 55555554
[ 456.916975] Call Trace:
[ 456.916990]
[ 456.917008] rtmsg_ifinfo+0x3c/0xa0
[ 456.917029] register_netdevice+0x889/0x9f0
[ 456.917052] __tun_chr_ioctl+0x83c/0x16c0
[ 456.917076] ? do_sys_openat2+0x9a/0xe0
[ 456.917094] __x64_sys_ioctl+0xa1/0xe0
[ 456.917120] do_syscall_64+0x104/0xfc0
[ 456.917142] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 456.917170] RIP: 0033:0x47cc8d
[ 456.917192] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
[ 456.917292] RSP: 002b:00007ffe944a4df0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 456.917332] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 456.917381] RDX: 00007ffe944a4e70 RSI: 00000000400454ca RDI: 0000000000000005
[ 456.917423] RBP: 00007ffe944a4e40 R08: 0000000000000000 R09: 0000000000000000
[ 456.917470] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe944a5348
[ 456.917519] R13: 00007ffe944a53c8 R14: 0000000000000002 R15: 0000000000543540
[ 456.917564]
[ 456.917579] ---[ end trace 0000000000000000 ]---
[ 456.917622] ------------[ cut here ]------------
[ 456.917648] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/602
[ 456.917699] Modules linked in:
[ 456.917719] CPU: 0 UID: 0 PID: 602 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 456.917775] Tainted: [W]=WARN
[ 456.917795] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 456.917830] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 456.917858] Code: 80 00 00 00 e8 59 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 76 b2 fb ff b9 a6 ff ff
[ 456.917957] RSP: 0018:ff71f0c380977d60 EFLAGS: 00010286
[ 456.917984] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[ 456.918028] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108182a800
[ 456.918070] RBP: 0000000000000002 R08: ff232310818f4250 R09: ff23231082063030
[ 456.918108] R10: ff23231083120118 R11: fefefefefefefeff R12: 0000000000000000
[ 456.918148] R13: 0000000000000010 R14: ff23231083120000 R15: ff2323108182a800
[ 456.918194] FS: 0000000009cdd400(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 456.918237] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 456.918273] CR2: 00007f8639cff000 CR3: 0000000001963006 CR4: 0000000000771ef0
[ 456.918314] PKRU: 55555554
[ 456.918329] Call Trace:
[ 456.918343]
[ 456.918359] rtnetlink_event+0x6e/0xb0
[ 456.918379] notifier_call_chain+0x6d/0x100
[ 456.918402] netdev_update_features+0x56/0x60
[ 456.918436] __tun_chr_ioctl+0xbf1/0x16c0
[ 456.918458] ? file_init_path+0x62/0x120
[ 456.918483] __x64_sys_ioctl+0xa1/0xe0
[ 456.918506] do_syscall_64+0x104/0xfc0
[ 456.918528] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 456.918558] RIP: 0033:0x47cc8d
[ 456.918579] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
[ 456.918674] RSP: 002b:00007ffe944a4e30 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 456.918709] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 456.918752] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[ 456.918792] RBP: 00007ffe944a4e80 R08: 0000000000000000 R09: 0000000000000000
[ 456.918835] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe944a5348
[ 456.918878] R13: 00007ffe944a53c8 R14: 0000000000000002 R15: 0000000000543540
[ 456.918923]
[ 456.918937] ---[ end trace 0000000000000000 ]---
[ 456.918976] ------------[ cut here ]------------
[ 456.919005] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/602
[ 456.919054] Modules linked in:
[ 456.919076] CPU: 0 UID: 0 PID: 602 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 456.919132] Tainted: [W]=WARN
[ 456.919156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 456.919193] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 456.919218] Code: 80 00 00 00 e8 59 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 76 b2 fb ff b9 a6 ff ff
[ 456.919318] RSP: 0018:ff71f0c380977c10 EFLAGS: 00010286
[ 456.919345] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[ 456.919391] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff2323108182a800
[ 456.919437] RBP: 0000000000000000 R08: ff232310818f4250 R09: ff2323108448b030
[ 456.919479] R10: ff23231083120118 R11: fefefefefefefeff R12: 0000000000000000
[ 456.919520] R13: 0000000000000010 R14: ff23231083120000 R15: ff2323108182a800
[ 456.919566] FS: 0000000009cdd400(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 456.919612] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 456.919648] CR2: 00007f8639cff000 CR3: 0000000001963006 CR4: 0000000000771ef0
[ 456.919688] PKRU: 55555554
[ 456.919702] Call Trace:
[ 456.919717]
[ 456.919731] rtmsg_ifinfo+0x3c/0xa0
[ 456.919753] __dev_notify_flags+0xb1/0xf0
[ 456.919776] netif_change_flags+0x54/0x70
[ 456.919799] dev_change_flags+0x45/0x80
[ 456.919819] devinet_ioctl+0x607/0x7f0
[ 456.919843] inet_ioctl+0x229/0x240
[ 456.919866] ? __rtnl_unlock+0x35/0x60
[ 456.919889] sock_do_ioctl+0x75/0x140
[ 456.919914] __x64_sys_ioctl+0xa1/0xe0
[ 456.919937] do_syscall_64+0x104/0xfc0
[ 456.919958] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 456.919988] RIP: 0033:0x47cc8d
[ 456.920011] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
[ 456.920110] RSP: 002b:00007ffe944a4e10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 456.920153] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 456.920195] RDX: 00007ffe944a4e80 RSI: 0000000000008914 RDI: 0000000000000006
[ 456.920237] RBP: 00007ffe944a4e60 R08: 0000000000000000 R09: 0000000000000000
[ 456.920279] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe944a5348
[ 456.920322] R13: 00007ffe944a53c8 R14: 0000000000000002 R15: 0000000000543540
[ 456.920364]
[ 456.920384] ---[ end trace 0000000000000000 ]---
[ 501.899378] ------------[ cut here ]------------
[ 501.899439] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/602
[ 501.899508] Modules linked in:
[ 501.899534] CPU: 0 UID: 0 PID: 602 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 501.899604] Tainted: [W]=WARN
[ 501.899622] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 501.899658] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 501.899689] Code: 80 00 00 00 e8 59 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 76 b2 fb ff b9 a6 ff ff
[ 501.899792] RSP: 0018:ff71f0c380977b58 EFLAGS: 00010286
[ 501.899816] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[ 501.899861] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff23231081842600
[ 501.899904] RBP: 0000000000000000 R08: ff232310818f4250 R09: ff2323108448b030
[ 501.899947] R10: ff23231083120118 R11: fefefefefefefeff R12: 0000000000000000
[ 501.899991] R13: 0000000000000010 R14: ff23231083120000 R15: ff23231081842600
[ 501.900184] FS: 0000000000000000(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 501.900232] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 501.900271] CR2: 00007f8639cff000 CR3: 0000000020c42001 CR4: 0000000000771ef0
[ 501.900316] PKRU: 55555554
[ 501.900331] Call Trace:
[ 501.900344]
[ 501.900359] rtmsg_ifinfo+0x3c/0xa0
[ 501.900383] netif_close_many+0xed/0x190
[ 501.900412] unregister_netdevice_many_notify+0x267/0x9d0
[ 501.900435] ? __queue_work+0x141/0x550
[ 501.900460] unregister_netdevice_queue+0x9e/0xd0
[ 501.900487] __tun_detach+0x591/0x5b0
[ 501.900512] tun_chr_close+0x3f/0xc0
[ 501.900533] __fput+0xe8/0x2c0
[ 501.900558] task_work_run+0x63/0xa0
[ 501.900586] do_exit+0x2c1/0xba0
[ 501.900612] ? netlink_recvmsg+0x18d/0x310
[ 501.900638] do_group_exit+0x2d/0xc0
[ 501.900656] get_signal+0x82e/0x900
[ 501.900681] arch_do_signal_or_restart+0x77/0x2b0
[ 501.900715] exit_to_user_mode_loop+0x75/0x4a0
[ 501.900747] do_syscall_64+0x439/0xfc0
[ 501.900774] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 501.900805] RIP: 0033:0x4c2d9e
[ 501.900830] Code: Unable to access opcode bytes at 0x4c2d74.
[ 501.900866] RSP: 002b:00007ffe944a47a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[ 501.900905] RAX: 0000000000000014 RBX: 00007ffe944a4830 RCX: 00000000004c2d9e
[ 501.900949] RDX: 0000000000000000 RSI: 00007ffe944a4840 RDI: 0000000000000007
[ 501.900991] RBP: 00007ffe944a47b0 R08: 0000000000000000 R09: 0000000000000000
[ 501.901037] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe944a4824
[ 501.901078] R13: 0000000000000050 R14: 00007ffe944a4970 R15: 0000000000000000
[ 501.901123]
[ 501.901135] ---[ end trace 0000000000000000 ]---
[ 501.901333] ------------[ cut here ]------------
[ 501.901362] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: packetdrill/602
[ 501.901403] Modules linked in:
[ 501.901426] CPU: 0 UID: 0 PID: 602 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 501.901487] Tainted: [W]=WARN
[ 501.901510] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 501.901548] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 501.901578] Code: 80 00 00 00 e8 59 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 76 b2 fb ff b9 a6 ff ff
[ 501.901679] RSP: 0018:ff71f0c380977bc8 EFLAGS: 00010286
[ 501.901706] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 501.901749] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff23231081842600
[ 501.901790] RBP: 0000000000000000 R08: ff232310818f4250 R09: ff23231081c3f030
[ 501.901832] R10: ff23231083120118 R11: fefefefefefefeff R12: 0000000000000000
[ 501.901879] R13: 0000000000000011 R14: ff23231083120000 R15: ff23231081842600
[ 501.901926] FS: 0000000000000000(0000) GS:ff23231129696000(0000) knlGS:0000000000000000
[ 501.901973] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 501.902011] CR2: 00007f9161a35f98 CR3: 0000000020c42001 CR4: 0000000000771ef0
[ 501.902054] PKRU: 55555554
[ 501.902068] Call Trace:
[ 501.902084]
[ 501.902098] unregister_netdevice_many_notify+0x877/0x9d0
[ 501.902126] unregister_netdevice_queue+0x9e/0xd0
[ 501.902150] __tun_detach+0x591/0x5b0
[ 501.902173] tun_chr_close+0x3f/0xc0
[ 501.902195] __fput+0xe8/0x2c0
[ 501.902216] task_work_run+0x63/0xa0
[ 501.902237] do_exit+0x2c1/0xba0
[ 501.902258] ? netlink_recvmsg+0x18d/0x310
[ 501.902280] do_group_exit+0x2d/0xc0
[ 501.902305] get_signal+0x82e/0x900
[ 501.902328] arch_do_signal_or_restart+0x77/0x2b0
[ 501.902358] exit_to_user_mode_loop+0x75/0x4a0
[ 501.902388] do_syscall_64+0x439/0xfc0
[ 501.902409] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 501.902437] RIP: 0033:0x4c2d9e
[ 501.902460] Code: Unable to access opcode bytes at 0x4c2d74.
[ 501.902497] RSP: 002b:00007ffe944a47a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[ 501.902539] RAX: 0000000000000014 RBX: 00007ffe944a4830 RCX: 00000000004c2d9e
[ 501.902583] RDX: 0000000000000000 RSI: 00007ffe944a4840 RDI: 0000000000000007
[ 501.902624] RBP: 00007ffe944a47b0 R08: 0000000000000000 R09: 0000000000000000
[ 501.902670] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe944a4824
[ 501.902712] R13: 0000000000000050 R14: 00007ffe944a4970 R15: 0000000000000000
[ 501.902757]
[ 501.902770] ---[ end trace 0000000000000000 ]---
[ 501.916124] ------------[ cut here ]------------
[ 501.916178] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#1: kworker/u16:0/12
[ 501.916246] Modules linked in:
[ 501.916267] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 501.916324] Tainted: [W]=WARN
[ 501.916347] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 501.916387] Workqueue: netns cleanup_net
[ 501.916412] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 501.916445] Code: 80 00 00 00 e8 59 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 76 b2 fb ff b9 a6 ff ff
[ 501.916550] RSP: 0018:ff71f0c380067c78 EFLAGS: 00010286
[ 501.916590] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 501.916632] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff23231081842500
[ 501.916676] RBP: 0000000000000000 R08: ff23231081942110 R09: ff2323108610782c
[ 501.916720] R10: ff2323108448a118 R11: fefefefefefefeff R12: 0000000000000000
[ 501.916760] R13: 0000000000000011 R14: ff2323108448a000 R15: ff23231081842500
[ 501.916802] FS: 0000000000000000(0000) GS:ff23231129716000(0000) knlGS:0000000000000000
[ 501.916850] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 501.916886] CR2: 00007f9161a17680 CR3: 0000000020c42004 CR4: 0000000000771ef0
[ 501.916928] PKRU: 55555554
[ 501.916942] Call Trace:
[ 501.916958]
[ 501.916975] unregister_netdevice_many_notify+0x877/0x9d0
[ 501.917009] default_device_exit_batch+0x318/0x390
[ 501.917041] ops_undo_list+0x10b/0x240
[ 501.917065] cleanup_net+0x1d7/0x2e0
[ 501.917089] process_one_work+0x162/0x360
[ 501.917114] worker_thread+0x16e/0x2d0
[ 501.917136] ? rescuer_thread+0x510/0x510
[ 501.917155] kthread+0xe1/0x120
[ 501.917177] ? kthread_park+0xa0/0xa0
[ 501.917198] ret_from_fork+0x16d/0x250
[ 501.917223] ? kthread_park+0xa0/0xa0
[ 501.917246] ret_from_fork_asm+0x11/0x20
[ 501.917271]
[ 501.917285] ---[ end trace 0000000000000000 ]---