[ 2.575983] ------------[ cut here ]------------
[ 2.576077] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: unshare/161
[ 2.576196] Modules linked in:
[ 2.576284] CPU: 2 UID: 0 PID: 161 Comm: unshare Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 2.576401] Tainted: [W]=WARN
[ 2.576468] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2.576553] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 2.576623] 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
[ 2.576787] RSP: 0018:ff607616803e7cc8 EFLAGS: 00010286
[ 2.576853] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 2.576932] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1e9866830f6400
[ 2.577012] RBP: 0000000000000000 R08: ff1e986683233b50 R09: ff1e98668319a02c
[ 2.577090] R10: ff1e9866819bd118 R11: fefefefefefefeff R12: 0000000000000000
[ 2.577182] R13: 0000000000000010 R14: ff1e9866819bd000 R15: ff1e9866830f6400
[ 2.577267] FS: 00007f49b09e1740(0000) GS:ff1e986733b96000(0000) knlGS:0000000000000000
[ 2.577349] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.577422] CR2: 00005591a8880310 CR3: 0000000004ce4001 CR4: 0000000000771ef0
[ 2.577505] PKRU: 55555554
[ 2.577557] Call Trace:
[ 2.577617]
[ 2.577670] rtmsg_ifinfo+0x3c/0xa0
[ 2.577737] register_netdevice+0x889/0x9f0
[ 2.577798] register_netdev+0x1e/0x30
[ 2.577858] loopback_net_init+0x57/0xb0
[ 2.577921] ? vsock_sysctl_init_net+0xb6/0x140
[ 2.577989] ops_init+0x68/0x140
[ 2.578051] setup_net+0x85/0x150
[ 2.578111] copy_net_ns+0xf5/0x200
[ 2.578179] create_new_namespaces+0x117/0x2f0
[ 2.578268] unshare_nsproxy_namespaces+0x85/0xb0
[ 2.578338] ksys_unshare+0x346/0x5e0
[ 2.578401] __x64_sys_unshare+0x12/0x20
[ 2.578462] do_syscall_64+0x104/0xfc0
[ 2.578525] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 2.578593] RIP: 0033:0x7f49b0adcbcb
[ 2.578653] 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
[ 2.578801] RSP: 002b:00007ffda21e3208 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[ 2.578882] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f49b0adcbcb
[ 2.578964] RDX: 0000000000000000 RSI: 00007ffda21e2f70 RDI: 0000000040000000
[ 2.579044] RBP: 00007ffda21e3590 R08: 00007ffda21e3160 R09: 0000000000000000
[ 2.579125] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[ 2.579214] R13: 0000000000000000 R14: 00000000ffffffff R15: 00005591a8883b68
[ 2.579296]
[ 2.579348] ---[ end trace 0000000000000000 ]---
[ 2.583512] ------------[ cut here ]------------
[ 2.583604] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/161
[ 2.583715] Modules linked in:
[ 2.583779] CPU: 2 UID: 0 PID: 161 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 2.583885] Tainted: [W]=WARN
[ 2.583942] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2.584019] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 2.584087] 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
[ 2.584291] RSP: 0018:ff607616803e7d68 EFLAGS: 00010286
[ 2.584358] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 2.584439] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1e9866830f6400
[ 2.584520] RBP: 0000000000000000 R08: ff1e986683021c10 R09: ff1e98668319f030
[ 2.584601] R10: ff1e986684eb0118 R11: fefefefefefefeff R12: 0000000000000000
[ 2.584686] R13: 0000000000000010 R14: ff1e986684eb0000 R15: ff1e9866830f6400
[ 2.584776] FS: 000000000e504400(0000) GS:ff1e986733b96000(0000) knlGS:0000000000000000
[ 2.584898] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.584974] CR2: 00007f50bba8d000 CR3: 0000000003122002 CR4: 0000000000771ef0
[ 2.585059] PKRU: 55555554
[ 2.585110] Call Trace:
[ 2.585170]
[ 2.585223] rtmsg_ifinfo+0x3c/0xa0
[ 2.585286] register_netdevice+0x889/0x9f0
[ 2.585349] __tun_chr_ioctl+0x83c/0x16c0
[ 2.585412] ? do_sys_openat2+0x9a/0xe0
[ 2.585476] __x64_sys_ioctl+0xa1/0xe0
[ 2.585539] do_syscall_64+0x104/0xfc0
[ 2.585601] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 2.585670] RIP: 0033:0x47cc8d
[ 2.585736] 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
[ 2.585876] RSP: 002b:00007ffe00b741c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 2.585959] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 2.586043] RDX: 00007ffe00b74240 RSI: 00000000400454ca RDI: 0000000000000005
[ 2.586123] RBP: 00007ffe00b74210 R08: 0000000000000000 R09: 0000000000000000
[ 2.586212] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe00b74718
[ 2.586295] R13: 00007ffe00b74798 R14: 0000000000000002 R15: 0000000000543540
[ 2.586377]
[ 2.586431] ---[ end trace 0000000000000000 ]---
[ 2.586522] ------------[ cut here ]------------
[ 2.586609] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/161
[ 2.586705] Modules linked in:
[ 2.586765] CPU: 2 UID: 0 PID: 161 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 2.586862] Tainted: [W]=WARN
[ 2.586921] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2.586996] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 2.587064] 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
[ 2.587214] RSP: 0018:ff607616803e7d60 EFLAGS: 00010286
[ 2.587280] RAX: 00000000ffffffa6 RBX: 0000000000000000 RCX: 0000000000000000
[ 2.587360] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1e9866830f6400
[ 2.587445] RBP: 0000000000000002 R08: ff1e986683021c10 R09: ff1e98668319f030
[ 2.587527] R10: ff1e986684eb0118 R11: fefefefefefefeff R12: 0000000000000000
[ 2.587610] R13: 0000000000000010 R14: ff1e986684eb0000 R15: ff1e9866830f6400
[ 2.587703] FS: 000000000e504400(0000) GS:ff1e986733b96000(0000) knlGS:0000000000000000
[ 2.587784] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.587859] CR2: 00007f50bba8d000 CR3: 0000000003122002 CR4: 0000000000771ef0
[ 2.587941] PKRU: 55555554
[ 2.587992] Call Trace:
[ 2.588062]
[ 2.588114] rtnetlink_event+0x6e/0xb0
[ 2.588185] notifier_call_chain+0x6d/0x100
[ 2.588249] netdev_update_features+0x56/0x60
[ 2.588319] __tun_chr_ioctl+0xbf1/0x16c0
[ 2.588380] ? file_init_path+0x62/0x120
[ 2.588442] __x64_sys_ioctl+0xa1/0xe0
[ 2.588505] do_syscall_64+0x104/0xfc0
[ 2.588567] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 2.588635] RIP: 0033:0x47cc8d
[ 2.588705] 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
[ 2.588840] RSP: 002b:00007ffe00b74200 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 2.588922] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 2.589004] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[ 2.589087] RBP: 00007ffe00b74250 R08: 0000000000000000 R09: 0000000000000000
[ 2.589176] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe00b74718
[ 2.589258] R13: 00007ffe00b74798 R14: 0000000000000002 R15: 0000000000543540
[ 2.589339]
[ 2.589391] ---[ end trace 0000000000000000 ]---
[ 2.589482] ------------[ cut here ]------------
[ 2.589549] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/161
[ 2.589638] Modules linked in:
[ 2.589705] CPU: 2 UID: 0 PID: 161 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 2.589800] Tainted: [W]=WARN
[ 2.589860] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2.589932] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 2.589999] 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
[ 2.590137] RSP: 0018:ff607616803e7c10 EFLAGS: 00010286
[ 2.590209] RAX: 00000000ffffffa6 RBX: 0000000000000001 RCX: 0000000000000000
[ 2.590291] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1e9866830f6400
[ 2.590373] RBP: 0000000000000000 R08: ff1e986683021c10 R09: ff1e98668319c030
[ 2.590458] R10: ff1e986684eb0118 R11: fefefefefefefeff R12: 0000000000000000
[ 2.590569] R13: 0000000000000010 R14: ff1e986684eb0000 R15: ff1e9866830f6400
[ 2.590653] FS: 000000000e504400(0000) GS:ff1e986733b96000(0000) knlGS:0000000000000000
[ 2.590743] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.590817] CR2: 00007f50bba8d000 CR3: 0000000003122002 CR4: 0000000000771ef0
[ 2.590899] PKRU: 55555554
[ 2.590951] Call Trace:
[ 2.591003]
[ 2.591055] rtmsg_ifinfo+0x3c/0xa0
[ 2.591116] __dev_notify_flags+0xb1/0xf0
[ 2.591186] netif_change_flags+0x54/0x70
[ 2.591248] dev_change_flags+0x45/0x80
[ 2.591309] devinet_ioctl+0x607/0x7f0
[ 2.591399] inet_ioctl+0x229/0x240
[ 2.591462] ? __rtnl_unlock+0x35/0x60
[ 2.591530] sock_do_ioctl+0x75/0x140
[ 2.591598] __x64_sys_ioctl+0xa1/0xe0
[ 2.591663] do_syscall_64+0x104/0xfc0
[ 2.591735] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 2.591805] RIP: 0033:0x47cc8d
[ 2.591866] 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
[ 2.592003] RSP: 002b:00007ffe00b741e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 2.592086] RAX: ffffffffffffffda RBX: 000000000000000f RCX: 000000000047cc8d
[ 2.592177] RDX: 00007ffe00b74250 RSI: 0000000000008914 RDI: 0000000000000006
[ 2.592263] RBP: 00007ffe00b74230 R08: 0000000000000000 R09: 0000000000000000
[ 2.592347] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe00b74718
[ 2.592432] R13: 00007ffe00b74798 R14: 0000000000000002 R15: 0000000000543540
[ 2.592523]
[ 2.592580] ---[ end trace 0000000000000000 ]---
[ 47.554924] ------------[ cut here ]------------
[ 47.555121] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/161
[ 47.555229] Modules linked in:
[ 47.555297] CPU: 2 UID: 0 PID: 161 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 47.555408] Tainted: [W]=WARN
[ 47.555471] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.555577] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 47.555653] 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
[ 47.555816] RSP: 0018:ff607616803e7b58 EFLAGS: 00010286
[ 47.555884] RAX: 00000000ffffffa6 RBX: 0000000000000041 RCX: 0000000000000000
[ 47.555969] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1e9866830eff00
[ 47.556053] RBP: 0000000000000000 R08: ff1e986683021c10 R09: ff1e98668319c030
[ 47.556138] R10: ff1e986684eb0118 R11: fefefefefefefeff R12: 0000000000000000
[ 47.556219] R13: 0000000000000010 R14: ff1e986684eb0000 R15: ff1e9866830eff00
[ 47.556308] FS: 0000000000000000(0000) GS:ff1e986733b96000(0000) knlGS:0000000000000000
[ 47.556397] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.556474] CR2: 000055e71768ec90 CR3: 0000000003263001 CR4: 0000000000771ef0
[ 47.556564] PKRU: 55555554
[ 47.556619] Call Trace:
[ 47.556677]
[ 47.556740] rtmsg_ifinfo+0x3c/0xa0
[ 47.556802] netif_close_many+0xed/0x190
[ 47.556870] unregister_netdevice_many_notify+0x267/0x9d0
[ 47.556945] ? __queue_work+0x141/0x550
[ 47.557024] unregister_netdevice_queue+0x9e/0xd0
[ 47.557098] __tun_detach+0x591/0x5b0
[ 47.557170] tun_chr_close+0x3f/0xc0
[ 47.557234] __fput+0xe8/0x2c0
[ 47.557304] task_work_run+0x63/0xa0
[ 47.557378] do_exit+0x2c1/0xba0
[ 47.557447] ? netlink_recvmsg+0x18d/0x310
[ 47.557514] do_group_exit+0x2d/0xc0
[ 47.557582] get_signal+0x82e/0x900
[ 47.557651] arch_do_signal_or_restart+0x77/0x2b0
[ 47.557731] exit_to_user_mode_loop+0x75/0x4a0
[ 47.557807] do_syscall_64+0x439/0xfc0
[ 47.557878] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 47.557949] RIP: 0033:0x4c2d9e
[ 47.558012] Code: Unable to access opcode bytes at 0x4c2d74.
[ 47.558088] RSP: 002b:00007ffe00b73b70 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[ 47.558188] RAX: 0000000000000014 RBX: 00007ffe00b73c00 RCX: 00000000004c2d9e
[ 47.558270] RDX: 0000000000000000 RSI: 00007ffe00b73c10 RDI: 0000000000000007
[ 47.558355] RBP: 00007ffe00b73b80 R08: 0000000000000000 R09: 0000000000000000
[ 47.558449] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe00b73bf4
[ 47.558533] R13: 0000000000000050 R14: 00007ffe00b73d40 R15: 0000000000000000
[ 47.558618]
[ 47.558670] ---[ end trace 0000000000000000 ]---
[ 47.559102] ------------[ cut here ]------------
[ 47.559193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#2: packetdrill/161
[ 47.559340] Modules linked in:
[ 47.559437] CPU: 2 UID: 0 PID: 161 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 47.559595] Tainted: [W]=WARN
[ 47.559683] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.559789] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 47.559896] 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
[ 47.560131] RSP: 0018:ff607616803e7bc8 EFLAGS: 00010286
[ 47.560259] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 47.560372] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1e9866830eff00
[ 47.560618] RBP: 0000000000000000 R08: ff1e986683021c10 R09: ff1e986684e83830
[ 47.560732] R10: ff1e986684eb0118 R11: fefefefefefefeff R12: 0000000000000000
[ 47.560817] R13: 0000000000000011 R14: ff1e986684eb0000 R15: ff1e9866830eff00
[ 47.560912] FS: 0000000000000000(0000) GS:ff1e986733b96000(0000) knlGS:0000000000000000
[ 47.560998] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.561078] CR2: 000055e71768ec90 CR3: 0000000037e42005 CR4: 0000000000771ef0
[ 47.561156] PKRU: 55555554
[ 47.561215] Call Trace:
[ 47.561270]
[ 47.561328] unregister_netdevice_many_notify+0x877/0x9d0
[ 47.561409] unregister_netdevice_queue+0x9e/0xd0
[ 47.561483] __tun_detach+0x591/0x5b0
[ 47.561552] tun_chr_close+0x3f/0xc0
[ 47.561620] __fput+0xe8/0x2c0
[ 47.561688] task_work_run+0x63/0xa0
[ 47.562042] do_exit+0x2c1/0xba0
[ 47.562105] ? netlink_recvmsg+0x18d/0x310
[ 47.562176] do_group_exit+0x2d/0xc0
[ 47.562267] get_signal+0x82e/0x900
[ 47.562334] arch_do_signal_or_restart+0x77/0x2b0
[ 47.562418] exit_to_user_mode_loop+0x75/0x4a0
[ 47.562496] do_syscall_64+0x439/0xfc0
[ 47.562565] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 47.562638] RIP: 0033:0x4c2d9e
[ 47.562710] Code: Unable to access opcode bytes at 0x4c2d74.
[ 47.562787] RSP: 002b:00007ffe00b73b70 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[ 47.562875] RAX: 0000000000000014 RBX: 00007ffe00b73c00 RCX: 00000000004c2d9e
[ 47.562958] RDX: 0000000000000000 RSI: 00007ffe00b73c10 RDI: 0000000000000007
[ 47.563043] RBP: 00007ffe00b73b80 R08: 0000000000000000 R09: 0000000000000000
[ 47.563128] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe00b73bf4
[ 47.563211] R13: 0000000000000050 R14: 00007ffe00b73d40 R15: 0000000000000000
[ 47.563294]
[ 47.563346] ---[ end trace 0000000000000000 ]---
[ 47.570796] ------------[ cut here ]------------
[ 47.570849] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0xc8/0x110, CPU#0: kworker/u16:1/65
[ 47.570918] Modules linked in:
[ 47.570945] CPU: 0 UID: 0 PID: 65 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(lazy)
[ 47.571011] Tainted: [W]=WARN
[ 47.571035] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.571071] Workqueue: netns cleanup_net
[ 47.571097] RIP: 0010:rtmsg_ifinfo_build_skb+0xc8/0x110
[ 47.571129] 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
[ 47.571264] RSP: 0018:ff6076168023fc78 EFLAGS: 00010286
[ 47.571302] RAX: 00000000ffffffa6 RBX: 00000000ffffffff RCX: 0000000000000000
[ 47.571353] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1e98668310f100
[ 47.571427] RBP: 0000000000000000 R08: ff1e986683233b50 R09: ff1e986684d5a82c
[ 47.571470] R10: ff1e9866819bd118 R11: fefefefefefefeff R12: 0000000000000000
[ 47.571558] R13: 0000000000000011 R14: ff1e9866819bd000 R15: ff1e98668310f100
[ 47.571603] FS: 0000000000000000(0000) GS:ff1e986733a96000(0000) knlGS:0000000000000000
[ 47.571656] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.571718] CR2: 00007f96d81ebf98 CR3: 0000000037e42002 CR4: 0000000000771ef0
[ 47.571780] PKRU: 55555554
[ 47.571801] Call Trace:
[ 47.571816]
[ 47.571830] unregister_netdevice_many_notify+0x877/0x9d0
[ 47.571862] default_device_exit_batch+0x318/0x390
[ 47.571891] ops_undo_list+0x10b/0x240
[ 47.571917] cleanup_net+0x1d7/0x2e0
[ 47.571940] process_one_work+0x162/0x360
[ 47.571968] worker_thread+0x16e/0x2d0
[ 47.571992] ? rescuer_thread+0x510/0x510
[ 47.572016] kthread+0xe1/0x120
[ 47.572036] ? kthread_park+0xa0/0xa0
[ 47.572057] ret_from_fork+0x16d/0x250
[ 47.572080] ? kthread_park+0xa0/0xa0
[ 47.572102] ret_from_fork_asm+0x11/0x20
[ 47.572128]
[ 47.572142] ---[ end trace 0000000000000000 ]---