[ 11.487644][ T166] ------------[ cut here ]------------
[ 11.488311][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: unshare/166
[ 11.488595][ T166] Modules linked in:
[ 11.488810][ T166] CPU: 3 UID: 0 PID: 166 Comm: unshare Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 11.489088][ T166] Tainted: [W]=WARN
[ 11.489224][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.489395][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 11.489580][ T166] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 ff f0 ff b9 a6 ff ff
[ 11.490092][ T166] RSP: 0018:ffa00000007d7ab0 EFLAGS: 00010286
[ 11.490265][ T166] RAX: 00000000ffffffa6 RBX: ff1100000c3d19c0 RCX: 1ff40000000faf1c
[ 11.490468][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c3d1a70
[ 11.490688][ T166] RBP: ff110000057f9000 R08: 1fe220000187a34f R09: ff1100000b20d180
[ 11.490891][ T166] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 11.491091][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000057f9000
[ 11.491304][ T166] FS: 00007f96346a8740(0000) GS:ff11000099b53000(0000) knlGS:0000000000000000
[ 11.491542][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 11.491725][ T166] CR2: 000055b79f205310 CR3: 000000000c7d6001 CR4: 0000000000771ef0
[ 11.491927][ T166] PKRU: 55555554
[ 11.492033][ T166] Call Trace:
[ 11.492134][ T166]
[ 11.492205][ T166] ? ip6_route_dev_notify+0x250/0x380
[ 11.492343][ T166] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 11.492479][ T166] ? notifier_call_chain+0xb0/0x320
[ 11.492680][ T166] rtmsg_ifinfo+0x5c/0xb0
[ 11.492797][ T166] register_netdevice+0x137a/0x1980
[ 11.492939][ T166] ? unregister_netdevice_queue+0x470/0x470
[ 11.493110][ T166] register_netdev+0x23/0x40
[ 11.493244][ T166] loopback_net_init+0x7d/0x150
[ 11.493382][ T166] ops_init+0x187/0x560
[ 11.493511][ T166] setup_net+0x11b/0x3b0
[ 11.493624][ T166] ? unregister_pernet_device+0x80/0x80
[ 11.493765][ T166] ? lockdep_init_map_type+0x5d/0x250
[ 11.493901][ T166] ? mutex_init_lockdep+0xf6/0x120
[ 11.494039][ T166] copy_net_ns+0x2fd/0x450
[ 11.494180][ T166] create_new_namespaces+0x371/0xa10
[ 11.494334][ T166] unshare_nsproxy_namespaces+0xa5/0x150
[ 11.494482][ T166] ksys_unshare+0x47e/0x8c0
[ 11.494625][ T166] ? walk_process_tree+0x350/0x350
[ 11.494770][ T166] __x64_sys_unshare+0x34/0x50
[ 11.494903][ T166] ? do_syscall_64+0x82/0xfc0
[ 11.495054][ T166] do_syscall_64+0x117/0xfc0
[ 11.495189][ T166] ? trace_hardirqs_off+0xd/0x30
[ 11.495329][ T166] ? exc_page_fault+0xee/0x100
[ 11.495464][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 11.495638][ T166] RIP: 0033:0x7f96347a3bcb
[ 11.495788][ T166] 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
[ 11.496271][ T166] RSP: 002b:00007ffdedd91f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[ 11.496474][ T166] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f96347a3bcb
[ 11.496681][ T166] RDX: 0000000000000000 RSI: 00007ffdedd91c90 RDI: 0000000040000000
[ 11.496890][ T166] RBP: 00007ffdedd922b0 R08: 00007ffdedd91e80 R09: 0000000000000000
[ 11.497094][ T166] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[ 11.497297][ T166] R13: 0000000000000000 R14: 00000000ffffffff R15: 000055b79f208b68
[ 11.497504][ T166]
[ 11.497610][ T166] irq event stamp: 15795
[ 11.497719][ T166] hardirqs last enabled at (15805): [] __up_console_sem+0x5a/0x70
[ 11.497957][ T166] hardirqs last disabled at (15812): [] __up_console_sem+0x3f/0x70
[ 11.498191][ T166] softirqs last enabled at (15340): [] handle_softirqs+0x611/0x940
[ 11.498424][ T166] softirqs last disabled at (14637): [] __irq_exit_rcu+0x103/0x1c0
[ 11.498666][ T166] ---[ end trace 0000000000000000 ]---
[ 11.523545][ T166] ------------[ cut here ]------------
[ 11.523854][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: packetdrill/166
[ 11.524301][ T166] Modules linked in:
[ 11.524509][ T166] CPU: 2 UID: 0 PID: 166 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 11.525057][ T166] Tainted: [W]=WARN
[ 11.525260][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.525550][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 11.525886][ T166] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 ff f0 ff b9 a6 ff ff
[ 11.526617][ T166] RSP: 0018:ffa00000007d7b58 EFLAGS: 00010286
[ 11.526922][ T166] RAX: 00000000ffffffa6 RBX: ff11000008a21540 RCX: 1ff40000000faf31
[ 11.527265][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008a215f0
[ 11.527609][ T166] RBP: ff11000005010000 R08: 1fe22000011442bf R09: ff1100000b20d158
[ 11.527958][ T166] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[ 11.528294][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005010000
[ 11.528642][ T166] FS: 0000000030e81400(0000) GS:ff11000099ad3000(0000) knlGS:0000000000000000
[ 11.529038][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 11.529329][ T166] CR2: 00007fbc2bfcb000 CR3: 000000000c4b1004 CR4: 0000000000771ef0
[ 11.529679][ T166] PKRU: 55555554
[ 11.529990][ T166] Call Trace:
[ 11.530186][ T166]
[ 11.530338][ T166] ? ip6_route_dev_notify+0x3d/0x380
[ 11.530598][ T166] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 11.530857][ T166] ? notifier_call_chain+0xb0/0x320
[ 11.531101][ T166] rtmsg_ifinfo+0x5c/0xb0
[ 11.531301][ T166] register_netdevice+0x137a/0x1980
[ 11.531550][ T166] ? unregister_netdevice_queue+0x470/0x470
[ 11.531866][ T166] ? alloc_netdev_mqs+0xec0/0x1410
[ 11.532113][ T166] tun_set_iff.constprop.0+0xc61/0x1850
[ 11.532359][ T166] ? tun_attach.isra.0+0x1630/0x1630
[ 11.532608][ T166] ? tun_get+0x106/0x240
[ 11.532823][ T166] __tun_chr_ioctl+0x4b0/0x2470
[ 11.533072][ T166] ? build_open_flags+0x620/0x620
[ 11.533315][ T166] ? tun_chr_read_iter+0x210/0x210
[ 11.533556][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 11.533835][ T166] ? __x64_sys_openat+0x10e/0x210
[ 11.534081][ T166] ? fput_close_sync+0xde/0x1b0
[ 11.534321][ T166] ? __ia32_sys_open+0x1b0/0x1b0
[ 11.534564][ T166] __x64_sys_ioctl+0x11a/0x190
[ 11.534838][ T166] do_syscall_64+0x117/0xfc0
[ 11.535104][ T166] ? trace_hardirqs_off+0xd/0x30
[ 11.535347][ T166] ? exc_page_fault+0xee/0x100
[ 11.535604][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 11.535918][ T166] RIP: 0033:0x47cc8d
[ 11.536124][ T166] 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
[ 11.536904][ T166] RSP: 002b:00007fffc99b6b60 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 11.537243][ T166] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 000000000047cc8d
[ 11.537587][ T166] RDX: 00007fffc99b6be0 RSI: 00000000400454ca RDI: 0000000000000005
[ 11.537943][ T166] RBP: 00007fffc99b6bb0 R08: 0000000000000000 R09: 0000000000000000
[ 11.538276][ T166] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffc99b70b8
[ 11.538617][ T166] R13: 00007fffc99b7140 R14: 0000000000000002 R15: 0000000000543540
[ 11.539013][ T166]
[ 11.539213][ T166] irq event stamp: 27455
[ 11.539411][ T166] hardirqs last enabled at (27465): [] __up_console_sem+0x5a/0x70
[ 11.539815][ T166] hardirqs last disabled at (27476): [] __up_console_sem+0x3f/0x70
[ 11.540190][ T166] softirqs last enabled at (26864): [] __alloc_skb+0x4c5/0x5f0
[ 11.540576][ T166] softirqs last disabled at (26862): [] __alloc_skb+0x4c5/0x5f0
[ 11.540977][ T166] ---[ end trace 0000000000000000 ]---
[ 11.541834][ T166] ------------[ cut here ]------------
[ 11.542067][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: packetdrill/166
[ 11.542489][ T166] Modules linked in:
[ 11.542859][ T166] CPU: 2 UID: 0 PID: 166 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 11.543330][ T166] Tainted: [W]=WARN
[ 11.543523][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.543831][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 11.544130][ T166] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 ff f0 ff b9 a6 ff ff
[ 11.544871][ T166] RSP: 0018:ffa00000007d7c58 EFLAGS: 00010286
[ 11.545157][ T166] RAX: 00000000ffffffa6 RBX: ff11000008a21e40 RCX: 1ff40000000faf51
[ 11.545489][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008a21ef0
[ 11.545851][ T166] RBP: ff11000005010000 R08: 1fe22000011443df R09: ff1100000b20d158
[ 11.546181][ T166] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[ 11.546533][ T166] R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000002
[ 11.546889][ T166] FS: 0000000030e81400(0000) GS:ff11000099ad3000(0000) knlGS:0000000000000000
[ 11.547292][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 11.547588][ T166] CR2: 00007fbc2bfcb000 CR3: 000000000c4b1004 CR4: 0000000000771ef0
[ 11.547939][ T166] PKRU: 55555554
[ 11.548131][ T166] Call Trace:
[ 11.548326][ T166]
[ 11.548473][ T166] ? rcu_is_watching+0x15/0xd0
[ 11.548737][ T166] rtnetlink_event+0xe0/0x1f0
[ 11.548985][ T166] notifier_call_chain+0xb0/0x320
[ 11.549229][ T166] netdev_update_features+0xa9/0xb0
[ 11.549470][ T166] ? netdev_sync_lower_features+0x4c0/0x4c0
[ 11.549785][ T166] __tun_chr_ioctl+0xc7f/0x2470
[ 11.550035][ T166] ? tun_chr_read_iter+0x210/0x210
[ 11.550274][ T166] ? fd_install+0x19b/0x3d0
[ 11.550515][ T166] ? update_socket_protocol+0x10/0x10
[ 11.550902][ T166] ? alloc_file_clone+0xe0/0xe0
[ 11.551149][ T166] __x64_sys_ioctl+0x11a/0x190
[ 11.551395][ T166] do_syscall_64+0x117/0xfc0
[ 11.551647][ T166] ? trace_hardirqs_off+0xd/0x30
[ 11.551910][ T166] ? exc_page_fault+0xee/0x100
[ 11.552152][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 11.552433][ T166] RIP: 0033:0x47cc8d
[ 11.552646][ T166] 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
[ 11.553383][ T166] RSP: 002b:00007fffc99b6ba0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 11.553736][ T166] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 000000000047cc8d
[ 11.554065][ T166] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[ 11.554401][ T166] RBP: 00007fffc99b6bf0 R08: 0000000000000000 R09: 0000000000000000
[ 11.554763][ T166] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffc99b70b8
[ 11.555093][ T166] R13: 00007fffc99b7140 R14: 0000000000000002 R15: 0000000000543540
[ 11.555440][ T166]
[ 11.555644][ T166] irq event stamp: 28247
[ 11.555856][ T166] hardirqs last enabled at (28259): [] __up_console_sem+0x5a/0x70
[ 11.556233][ T166] hardirqs last disabled at (28268): [] __up_console_sem+0x3f/0x70
[ 11.556618][ T166] softirqs last enabled at (27730): [] __alloc_skb+0x4c5/0x5f0
[ 11.557010][ T166] softirqs last disabled at (27728): [] __alloc_skb+0x4c5/0x5f0
[ 11.557388][ T166] ---[ end trace 0000000000000000 ]---
[ 11.571193][ T166] ------------[ cut here ]------------
[ 11.572371][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: packetdrill/166
[ 11.573795][ T166] Modules linked in:
[ 11.574945][ T166] CPU: 2 UID: 0 PID: 166 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 11.575706][ T166] Tainted: [W]=WARN
[ 11.575920][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.576236][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 11.576579][ T166] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 ff f0 ff b9 a6 ff ff
[ 11.577410][ T166] RSP: 0018:ffa00000007d7850 EFLAGS: 00010286
[ 11.577752][ T166] RAX: 00000000ffffffa6 RBX: ff11000008a21240 RCX: 1ff40000000faed0
[ 11.578129][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008a212f0
[ 11.578503][ T166] RBP: ff11000005010000 R08: 1fe220000114425f R09: ff1100000b20d158
[ 11.578897][ T166] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[ 11.579263][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005820900
[ 11.579639][ T166] FS: 0000000030e81400(0000) GS:ff11000099ad3000(0000) knlGS:0000000000000000
[ 11.580086][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 11.580403][ T166] CR2: 00007fbc2bfcb000 CR3: 000000000c4b1004 CR4: 0000000000771ef0
[ 11.580808][ T166] PKRU: 55555554
[ 11.581022][ T166] Call Trace:
[ 11.581230][ T166]
[ 11.581393][ T166] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 11.581666][ T166] rtmsg_ifinfo+0x5c/0xb0
[ 11.581894][ T166] ? mark_held_locks+0x40/0x70
[ 11.582159][ T166] __dev_notify_flags+0x1b8/0x280
[ 11.582424][ T166] ? netif_change_name+0x8c0/0x8c0
[ 11.582818][ T166] ? __dev_change_flags+0x4a4/0x660
[ 11.583079][ T166] ? netif_set_allmulti+0x250/0x250
[ 11.583342][ T166] ? lock_acquire.part.0+0xbc/0x260
[ 11.583618][ T166] netif_change_flags+0xfe/0x190
[ 11.583940][ T166] ? cap_capable+0x1d6/0x3e0
[ 11.584209][ T166] dev_change_flags+0xa5/0x170
[ 11.584486][ T166] devinet_ioctl+0x10f0/0x1840
[ 11.584781][ T166] ? inet_ifa_byprefix+0x220/0x220
[ 11.585045][ T166] ? _copy_from_user+0x42/0x90
[ 11.585311][ T166] inet_ioctl+0x34b/0x3a0
[ 11.585525][ T166] ? inet_dgram_connect+0x3e0/0x3e0
[ 11.585816][ T166] ? __lock_acquire+0x508/0xc10
[ 11.586098][ T166] ? __might_fault+0x97/0x140
[ 11.586365][ T166] ? __might_fault+0x97/0x140
[ 11.586635][ T166] sock_do_ioctl+0x10e/0x270
[ 11.586918][ T166] ? __sock_recv_cmsgs+0x550/0x550
[ 11.587188][ T166] ? ioctl_file_clone+0xd0/0xd0
[ 11.587455][ T166] sock_ioctl+0x3cb/0x5f0
[ 11.587699][ T166] ? br_ioctl_call+0x80/0x80
[ 11.587976][ T166] ? fd_install+0x19b/0x3d0
[ 11.588251][ T166] ? update_socket_protocol+0x10/0x10
[ 11.588510][ T166] ? alloc_file_clone+0xe0/0xe0
[ 11.588804][ T166] __x64_sys_ioctl+0x11a/0x190
[ 11.589071][ T166] do_syscall_64+0x117/0xfc0
[ 11.589338][ T166] ? trace_hardirqs_off+0xd/0x30
[ 11.589609][ T166] ? exc_page_fault+0xee/0x100
[ 11.589891][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 11.590204][ T166] RIP: 0033:0x47cc8d
[ 11.590427][ T166] 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
[ 11.591232][ T166] RSP: 002b:00007fffc99b6b80 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 11.591603][ T166] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 000000000047cc8d
[ 11.591997][ T166] RDX: 00007fffc99b6bf0 RSI: 0000000000008914 RDI: 0000000000000006
[ 11.592390][ T166] RBP: 00007fffc99b6bd0 R08: 0000000000000000 R09: 0000000000000000
[ 11.592789][ T166] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffc99b70b8
[ 11.593151][ T166] R13: 00007fffc99b7140 R14: 0000000000000002 R15: 0000000000543540
[ 11.593531][ T166]
[ 11.593810][ T166] irq event stamp: 41595
[ 11.594014][ T166] hardirqs last enabled at (41605): [] __up_console_sem+0x5a/0x70
[ 11.594430][ T166] hardirqs last disabled at (41614): [] __up_console_sem+0x3f/0x70
[ 11.594870][ T166] softirqs last enabled at (40974): [] handle_softirqs+0x611/0x940
[ 11.595290][ T166] softirqs last disabled at (40799): [] __irq_exit_rcu+0x103/0x1c0
[ 11.595727][ T166] ---[ end trace 0000000000000000 ]---
[ 101.225304][ T166] ------------[ cut here ]------------
[ 101.225643][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: packetdrill/166
[ 101.226011][ T166] Modules linked in:
[ 101.226180][ T166] CPU: 2 UID: 0 PID: 166 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 101.226587][ T166] Tainted: [W]=WARN
[ 101.226834][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 101.227134][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 101.227455][ T166] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 ff f0 ff b9 a6 ff ff
[ 101.228071][ T166] RSP: 0018:ffa00000007d76f0 EFLAGS: 00010286
[ 101.228382][ T166] RAX: 00000000ffffffa6 RBX: ff11000004d916c0 RCX: 1ff40000000faea4
[ 101.228721][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004d91770
[ 101.229037][ T166] RBP: ff11000005010000 R08: 1fe22000009b22ef R09: ff1100000b20d158
[ 101.229357][ T166] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[ 101.229727][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000007d7790
[ 101.230060][ T166] FS: 0000000000000000(0000) GS:ff11000099ad3000(0000) knlGS:0000000000000000
[ 101.230466][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 101.230790][ T166] CR2: 00007fbc2bfcb000 CR3: 0000000038b39005 CR4: 0000000000771ef0
[ 101.231246][ T166] PKRU: 55555554
[ 101.231595][ T166] Call Trace:
[ 101.231928][ T166]
[ 101.232123][ T166] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 101.232446][ T166] rtmsg_ifinfo+0x5c/0xb0
[ 101.232813][ T166] netif_close_many+0x2ac/0x640
[ 101.233148][ T166] ? asym_cpu_capacity_scan+0xa60/0xa60
[ 101.233452][ T166] ? lock_acquire.part.0+0xbc/0x260
[ 101.233839][ T166] ? find_held_lock+0x2b/0x80
[ 101.234164][ T166] ? __dev_close_many+0x530/0x530
[ 101.234467][ T166] ? netif_close_many_and_unlock+0x22/0x2c0
[ 101.234792][ T166] unregister_netdevice_many_notify+0x671/0x19a0
[ 101.235089][ T166] ? select_fallback_rq+0x510/0x510
[ 101.235389][ T166] ? unregister_netdevice_queued+0x80/0x80
[ 101.235724][ T166] ? find_held_lock+0x2b/0x80
[ 101.235985][ T166] ? find_held_lock+0x2b/0x80
[ 101.236316][ T166] ? __lock_release.isra.0+0x6b/0x1a0
[ 101.236617][ T166] ? __queue_work+0x315/0xc00
[ 101.236997][ T166] unregister_netdevice_queue+0x290/0x470
[ 101.237363][ T166] ? mark_held_locks+0x40/0x70
[ 101.237658][ T166] ? unregister_netdevice_many+0x20/0x20
[ 101.238039][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 101.238346][ T166] ? queue_delayed_work_on+0x95/0x100
[ 101.238631][ T166] __tun_detach+0xf36/0x1320
[ 101.238975][ T166] tun_chr_close+0xac/0x1b0
[ 101.239249][ T166] __fput+0x363/0xac0
[ 101.239437][ T166] task_work_run+0x12b/0x240
[ 101.239720][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 101.239934][ T166] ? task_work_cancel+0x30/0x30
[ 101.240170][ T166] ? kmem_cache_free+0xf8/0x560
[ 101.240371][ T166] do_exit+0x614/0xdc0
[ 101.240531][ T166] ? exit_notify+0x890/0x890
[ 101.240796][ T166] ? find_held_lock+0x2b/0x80
[ 101.241069][ T166] ? __lock_release.isra.0+0x6b/0x1a0
[ 101.241343][ T166] ? __rwlock_init+0x150/0x150
[ 101.241605][ T166] do_group_exit+0xb8/0x370
[ 101.241886][ T166] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160
[ 101.242183][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 101.242383][ T166] ? _raw_spin_unlock_irq+0x28/0x50
[ 101.242574][ T166] ? _raw_spin_unlock_irq+0x33/0x50
[ 101.242779][ T166] get_signal+0x172e/0x1820
[ 101.242980][ T166] ? ptrace_signal+0x600/0x600
[ 101.243170][ T166] arch_do_signal_or_restart+0xc2/0x3a0
[ 101.243366][ T166] ? __sys_recvmsg+0x142/0x1f0
[ 101.243574][ T166] ? get_sigframe_size+0x20/0x20
[ 101.243806][ T166] ? __sys_recvmsg_sock+0x20/0x20
[ 101.244031][ T166] ? rcu_is_watching+0x15/0xd0
[ 101.244243][ T166] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 101.244469][ T166] exit_to_user_mode_loop+0x86/0x520
[ 101.244705][ T166] ? rcu_is_watching+0x15/0xd0
[ 101.244895][ T166] do_syscall_64+0x437/0xfc0
[ 101.245085][ T166] ? irq_exit_rcu+0x1a/0x30
[ 101.245323][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 101.245706][ T166] RIP: 0033:0x4c2d9e
[ 101.245967][ T166] Code: Unable to access opcode bytes at 0x4c2d74.
[ 101.246228][ T166] RSP: 002b:00007fffc99b6510 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[ 101.246495][ T166] RAX: 0000000000000050 RBX: 00007fffc99b65a0 RCX: 00000000004c2d9e
[ 101.246760][ T166] RDX: 0000000000000000 RSI: 00007fffc99b65b0 RDI: 0000000000000007
[ 101.247105][ T166] RBP: 00007fffc99b6520 R08: 0000000000000000 R09: 0000000000000000
[ 101.247570][ T166] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffc99b6594
[ 101.247863][ T166] R13: 00007fffc99b7140 R14: 00007fffc99b66e0 R15: 0000000000543540
[ 101.248120][ T166]
[ 101.248270][ T166] irq event stamp: 103251483
[ 101.248562][ T166] hardirqs last enabled at (103251493): [] __up_console_sem+0x5a/0x70
[ 101.249973][ T166] hardirqs last disabled at (103251504): [] __up_console_sem+0x3f/0x70
[ 101.250403][ T166] softirqs last enabled at (103251084): [] handle_softirqs+0x611/0x940
[ 101.250710][ T166] softirqs last disabled at (103250975): [] __irq_exit_rcu+0x103/0x1c0
[ 101.250995][ T166] ---[ end trace 0000000000000000 ]---
[ 101.261215][ T166] ------------[ cut here ]------------
[ 101.261507][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: packetdrill/166
[ 101.261848][ T166] Modules linked in:
[ 101.262007][ T166] CPU: 2 UID: 0 PID: 166 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 101.262499][ T166] Tainted: [W]=WARN
[ 101.262649][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 101.262872][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 101.263100][ T166] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 ff f0 ff b9 a6 ff ff
[ 101.263718][ T166] RSP: 0018:ffa00000007d7820 EFLAGS: 00010286
[ 101.263938][ T166] RAX: 00000000ffffffa6 RBX: ff1100000cc43840 RCX: 1ff40000000faeca
[ 101.264294][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000cc438f0
[ 101.264558][ T166] RBP: ff11000005010000 R08: 1fe220000198871f R09: ff1100000b20d158
[ 101.264878][ T166] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[ 101.265140][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 101.265487][ T166] FS: 0000000000000000(0000) GS:ff11000099ad3000(0000) knlGS:0000000000000000
[ 101.265835][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 101.266083][ T166] CR2: 00007fbc2bfcb000 CR3: 0000000038b39005 CR4: 0000000000771ef0
[ 101.266409][ T166] PKRU: 55555554
[ 101.266602][ T166] Call Trace:
[ 101.266825][ T166]
[ 101.266984][ T166] unregister_netdevice_many_notify+0x12ca/0x19a0
[ 101.267298][ T166] ? unregister_netdevice_queued+0x80/0x80
[ 101.267596][ T166] ? find_held_lock+0x2b/0x80
[ 101.267842][ T166] ? find_held_lock+0x2b/0x80
[ 101.268089][ T166] ? __lock_release.isra.0+0x6b/0x1a0
[ 101.268298][ T166] ? __queue_work+0x315/0xc00
[ 101.268484][ T166] unregister_netdevice_queue+0x290/0x470
[ 101.268702][ T166] ? mark_held_locks+0x40/0x70
[ 101.268941][ T166] ? unregister_netdevice_many+0x20/0x20
[ 101.269124][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 101.269311][ T166] ? queue_delayed_work_on+0x95/0x100
[ 101.269493][ T166] __tun_detach+0xf36/0x1320
[ 101.269678][ T166] tun_chr_close+0xac/0x1b0
[ 101.269871][ T166] __fput+0x363/0xac0
[ 101.270026][ T166] task_work_run+0x12b/0x240
[ 101.270207][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 101.270395][ T166] ? task_work_cancel+0x30/0x30
[ 101.270578][ T166] ? kmem_cache_free+0xf8/0x560
[ 101.270769][ T166] do_exit+0x614/0xdc0
[ 101.270921][ T166] ? exit_notify+0x890/0x890
[ 101.271099][ T166] ? find_held_lock+0x2b/0x80
[ 101.271289][ T166] ? __lock_release.isra.0+0x6b/0x1a0
[ 101.271467][ T166] ? __rwlock_init+0x150/0x150
[ 101.271649][ T166] do_group_exit+0xb8/0x370
[ 101.271836][ T166] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160
[ 101.272050][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 101.272229][ T166] ? _raw_spin_unlock_irq+0x28/0x50
[ 101.272418][ T166] ? _raw_spin_unlock_irq+0x33/0x50
[ 101.272599][ T166] get_signal+0x172e/0x1820
[ 101.272800][ T166] ? ptrace_signal+0x600/0x600
[ 101.272986][ T166] arch_do_signal_or_restart+0xc2/0x3a0
[ 101.273168][ T166] ? __sys_recvmsg+0x142/0x1f0
[ 101.273355][ T166] ? get_sigframe_size+0x20/0x20
[ 101.273536][ T166] ? __sys_recvmsg_sock+0x20/0x20
[ 101.273735][ T166] ? rcu_is_watching+0x15/0xd0
[ 101.273918][ T166] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 101.274131][ T166] exit_to_user_mode_loop+0x86/0x520
[ 101.274318][ T166] ? rcu_is_watching+0x15/0xd0
[ 101.274503][ T166] do_syscall_64+0x437/0xfc0
[ 101.274697][ T166] ? irq_exit_rcu+0x1a/0x30
[ 101.274878][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 101.275088][ T166] RIP: 0033:0x4c2d9e
[ 101.275242][ T166] Code: Unable to access opcode bytes at 0x4c2d74.
[ 101.275465][ T166] RSP: 002b:00007fffc99b6510 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[ 101.275727][ T166] RAX: 0000000000000050 RBX: 00007fffc99b65a0 RCX: 00000000004c2d9e
[ 101.275972][ T166] RDX: 0000000000000000 RSI: 00007fffc99b65b0 RDI: 0000000000000007
[ 101.276216][ T166] RBP: 00007fffc99b6520 R08: 0000000000000000 R09: 0000000000000000
[ 101.276470][ T166] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffc99b6594
[ 101.276729][ T166] R13: 00007fffc99b7140 R14: 00007fffc99b66e0 R15: 0000000000543540
[ 101.276980][ T166]
[ 101.277126][ T166] irq event stamp: 103261709
[ 101.277310][ T166] hardirqs last enabled at (103261719): [] __up_console_sem+0x5a/0x70
[ 101.277589][ T166] hardirqs last disabled at (103261728): [] __up_console_sem+0x3f/0x70
[ 101.277875][ T166] softirqs last enabled at (103261048): [] handle_softirqs+0x611/0x940
[ 101.278166][ T166] softirqs last disabled at (103261039): [] __irq_exit_rcu+0x103/0x1c0
[ 101.278452][ T166] ---[ end trace 0000000000000000 ]---
[ 101.335264][ T66] ------------[ cut here ]------------
[ 101.335627][ T66] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: kworker/u16:1/66
[ 101.335896][ T66] Modules linked in:
[ 101.336030][ T66] CPU: 1 UID: 0 PID: 66 Comm: kworker/u16:1 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 101.336341][ T66] Tainted: [W]=WARN
[ 101.336435][ T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 101.336595][ T66] Workqueue: netns cleanup_net
[ 101.336808][ T66] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 101.336986][ T66] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 ff f0 ff b9 a6 ff ff
[ 101.337433][ T66] RSP: 0018:ffa0000000477878 EFLAGS: 00010286
[ 101.337590][ T66] RAX: 00000000ffffffa6 RBX: ff1100000cc42f40 RCX: 1ff400000008eed5
[ 101.337780][ T66] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000cc42ff0
[ 101.337963][ T66] RBP: ff110000057f9000 R08: 1fe22000019885ff R09: ff11000008c5d1d0
[ 101.338190][ T66] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[ 101.338380][ T66] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 101.338565][ T66] FS: 0000000000000000(0000) GS:ff11000099a53000(0000) knlGS:0000000000000000
[ 101.338803][ T66] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 101.338957][ T66] CR2: 00007fa74dc6e0a0 CR3: 0000000038b39006 CR4: 0000000000771ef0
[ 101.339139][ T66] PKRU: 55555554
[ 101.339230][ T66] Call Trace:
[ 101.339328][ T66]
[ 101.339406][ T66] unregister_netdevice_many_notify+0x12ca/0x19a0
[ 101.339568][ T66] ? unregister_netdevice_queued+0x80/0x80
[ 101.339728][ T66] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 101.339852][ T66] default_device_exit_batch+0x38b/0x600
[ 101.339973][ T66] ? generic_xdp_install+0x400/0x400
[ 101.340093][ T66] ? ipmr_free_table+0x12e/0x2a0
[ 101.340217][ T66] ? unregister_netdev+0x60/0x60
[ 101.340345][ T66] ? rtnl_is_locked+0x15/0x20
[ 101.340465][ T66] ? nexthop_net_exit_rtnl+0x1f/0x260
[ 101.340590][ T66] ops_undo_list+0x2ce/0x8f0
[ 101.340721][ T66] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 101.340848][ T66] ? __lock_release.isra.0+0x6b/0x1a0
[ 101.340974][ T66] cleanup_net+0x431/0x890
[ 101.341095][ T66] ? net_passive_dec+0x1c0/0x1c0
[ 101.341217][ T66] ? process_one_work+0xdb7/0x1410
[ 101.341369][ T66] ? lock_acquire+0x134/0x160
[ 101.341524][ T66] ? rcu_is_watching+0x15/0xd0
[ 101.341671][ T66] process_one_work+0xdf8/0x1410
[ 101.341804][ T66] ? pwq_dec_nr_in_flight+0x710/0x710
[ 101.341944][ T66] ? lock_acquire.part.0+0xbc/0x260
[ 101.342070][ T66] worker_thread+0x4f1/0xd60
[ 101.342193][ T66] ? rescuer_thread+0x1320/0x1320
[ 101.342334][ T66] ? __kthread_parkme+0xbd/0x210
[ 101.342510][ T66] ? rescuer_thread+0x1320/0x1320
[ 101.342632][ T66] kthread+0x367/0x460
[ 101.342728][ T66] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 101.342944][ T66] ? kthread_affine_node+0x330/0x330
[ 101.343085][ T66] ret_from_fork+0x474/0x6b0
[ 101.343212][ T66] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 101.343370][ T66] ? __switch_to+0x5a3/0xe00
[ 101.343494][ T66] ? kthread_affine_node+0x330/0x330
[ 101.343615][ T66] ret_from_fork_asm+0x11/0x20
[ 101.343751][ T66]
[ 101.343843][ T66] irq event stamp: 2577
[ 101.343935][ T66] hardirqs last enabled at (2585): [] __up_console_sem+0x5a/0x70
[ 101.344151][ T66] hardirqs last disabled at (2592): [] __up_console_sem+0x3f/0x70
[ 101.344366][ T66] softirqs last enabled at (2384): [] handle_softirqs+0x611/0x940
[ 101.344578][ T66] softirqs last disabled at (2379): [] __irq_exit_rcu+0x103/0x1c0
[ 101.344797][ T66] ---[ end trace 0000000000000000 ]---