[ 8.825327][ T166] ------------[ cut here ]------------
[ 8.825541][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: unshare/166
[ 8.825817][ T166] Modules linked in:
[ 8.825949][ T166] CPU: 0 UID: 0 PID: 166 Comm: unshare Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 8.826216][ T166] Tainted: [W]=WARN
[ 8.826322][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8.826541][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 8.826727][ 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
[ 8.827236][ T166] RSP: 0018:ffa00000007d7ab0 EFLAGS: 00010286
[ 8.827417][ T166] RAX: 00000000ffffffa6 RBX: ff1100000bf804c0 RCX: 1ff40000000faf1c
[ 8.827615][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000bf80570
[ 8.827814][ T166] RBP: ff11000009be9000 R08: 1fe22000017f00af R09: ff1100000d830b80
[ 8.828013][ T166] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 8.828211][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009be9000
[ 8.828443][ T166] FS: 00007f126e8be740(0000) GS:ff1100007b7d3000(0000) knlGS:0000000000000000
[ 8.828678][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.828844][ T166] CR2: 0000557d546c1310 CR3: 000000000caff004 CR4: 0000000000771ef0
[ 8.829044][ T166] PKRU: 55555554
[ 8.829145][ T166] Call Trace:
[ 8.829246][ T166]
[ 8.829322][ T166] ? ip6_route_dev_notify+0x250/0x380
[ 8.829464][ T166] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 8.829597][ T166] ? notifier_call_chain+0xb0/0x320
[ 8.829730][ T166] rtmsg_ifinfo+0x5c/0xb0
[ 8.829831][ T166] register_netdevice+0x137a/0x1980
[ 8.829967][ T166] ? unregister_netdevice_queue+0x470/0x470
[ 8.830135][ T166] register_netdev+0x23/0x40
[ 8.830274][ T166] loopback_net_init+0x7d/0x150
[ 8.830416][ T166] ops_init+0x187/0x560
[ 8.830517][ T166] setup_net+0x11b/0x3b0
[ 8.830617][ T166] ? unregister_pernet_device+0x80/0x80
[ 8.830748][ T166] ? lockdep_init_map_type+0x5d/0x250
[ 8.830880][ T166] ? mutex_init_lockdep+0xf6/0x120
[ 8.831016][ T166] copy_net_ns+0x2fd/0x450
[ 8.831151][ T166] create_new_namespaces+0x371/0xa10
[ 8.831293][ T166] unshare_nsproxy_namespaces+0xa5/0x150
[ 8.831432][ T166] ksys_unshare+0x47e/0x8c0
[ 8.831565][ T166] ? walk_process_tree+0x350/0x350
[ 8.831701][ T166] __x64_sys_unshare+0x34/0x50
[ 8.831834][ T166] ? do_syscall_64+0x82/0xfc0
[ 8.831968][ T166] do_syscall_64+0x117/0xfc0
[ 8.832100][ T166] ? trace_hardirqs_off+0xd/0x30
[ 8.832232][ T166] ? exc_page_fault+0xee/0x100
[ 8.832376][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 8.832545][ T166] RIP: 0033:0x7f126e9b9bcb
[ 8.832684][ 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
[ 8.833152][ T166] RSP: 002b:00007ffef21e8ad8 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[ 8.833365][ T166] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f126e9b9bcb
[ 8.833563][ T166] RDX: 0000000000000000 RSI: 00007ffef21e8840 RDI: 0000000040000000
[ 8.833760][ T166] RBP: 00007ffef21e8e60 R08: 00007ffef21e8a30 R09: 0000000000000000
[ 8.833960][ T166] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[ 8.834159][ T166] R13: 0000000000000000 R14: 00000000ffffffff R15: 0000557d546c4b68
[ 8.834373][ T166]
[ 8.834473][ T166] irq event stamp: 24537
[ 8.834574][ T166] hardirqs last enabled at (24545): [] __up_console_sem+0x5a/0x70
[ 8.834804][ T166] hardirqs last disabled at (24552): [] __up_console_sem+0x3f/0x70
[ 8.835035][ T166] softirqs last enabled at (24042): [] __alloc_skb+0x4c5/0x5f0
[ 8.835265][ T166] softirqs last disabled at (24040): [] __alloc_skb+0x4c5/0x5f0
[ 8.835497][ T166] ---[ end trace 0000000000000000 ]---
[ 8.866634][ T166] ------------[ cut here ]------------
[ 8.866788][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: packetdrill/166
[ 8.867029][ T166] Modules linked in:
[ 8.867127][ T166] CPU: 0 UID: 0 PID: 166 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 8.867477][ T166] Tainted: [W]=WARN
[ 8.867573][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8.867728][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 8.867888][ 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
[ 8.868335][ T166] RSP: 0018:ffa00000007d7b58 EFLAGS: 00010286
[ 8.868494][ T166] RAX: 00000000ffffffa6 RBX: ff110000091096c0 RCX: 1ff40000000faf31
[ 8.868678][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009109770
[ 8.868857][ T166] RBP: ff1100000adbc000 R08: 1fe22000012212ef R09: ff1100000d830b58
[ 8.869037][ T166] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 8.869219][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000adbc000
[ 8.869413][ T166] FS: 0000000000a10400(0000) GS:ff1100007b7d3000(0000) knlGS:0000000000000000
[ 8.869628][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.869780][ T166] CR2: 00007f92e606e000 CR3: 000000000cafb005 CR4: 0000000000771ef0
[ 8.869970][ T166] PKRU: 55555554
[ 8.870060][ T166] Call Trace:
[ 8.870151][ T166]
[ 8.870214][ T166] ? ip6_route_dev_notify+0x3d/0x380
[ 8.870349][ T166] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 8.870470][ T166] ? notifier_call_chain+0xb0/0x320
[ 8.870594][ T166] rtmsg_ifinfo+0x5c/0xb0
[ 8.870685][ T166] register_netdevice+0x137a/0x1980
[ 8.870806][ T166] ? unregister_netdevice_queue+0x470/0x470
[ 8.870956][ T166] ? alloc_netdev_mqs+0xec0/0x1410
[ 8.871077][ T166] tun_set_iff.constprop.0+0xc61/0x1850
[ 8.871201][ T166] ? tun_attach.isra.0+0x1630/0x1630
[ 8.871385][ T166] ? tun_get+0x106/0x240
[ 8.871478][ T166] __tun_chr_ioctl+0x4b0/0x2470
[ 8.871597][ T166] ? build_open_flags+0x620/0x620
[ 8.871718][ T166] ? tun_chr_read_iter+0x210/0x210
[ 8.871837][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 8.871960][ T166] ? __x64_sys_openat+0x10e/0x210
[ 8.872109][ T166] ? fput_close_sync+0xde/0x1b0
[ 8.872283][ T166] ? __ia32_sys_open+0x1b0/0x1b0
[ 8.872413][ T166] __x64_sys_ioctl+0x11a/0x190
[ 8.872536][ T166] do_syscall_64+0x117/0xfc0
[ 8.872656][ T166] ? trace_hardirqs_off+0xd/0x30
[ 8.872777][ T166] ? exc_page_fault+0xee/0x100
[ 8.872899][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 8.873048][ T166] RIP: 0033:0x47cc8d
[ 8.873145][ 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
[ 8.873582][ T166] RSP: 002b:00007ffdca99fdc0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 8.873765][ T166] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 000000000047cc8d
[ 8.873947][ T166] RDX: 00007ffdca99fe40 RSI: 00000000400454ca RDI: 0000000000000005
[ 8.874127][ T166] RBP: 00007ffdca99fe10 R08: 0000000000000000 R09: 0000000000000000
[ 8.874314][ T166] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdca9a0318
[ 8.874498][ T166] R13: 00007ffdca9a03a0 R14: 0000000000000002 R15: 0000000000543540
[ 8.874685][ T166]
[ 8.874777][ T166] irq event stamp: 52183
[ 8.874867][ T166] hardirqs last enabled at (52191): [] __up_console_sem+0x5a/0x70
[ 8.875076][ T166] hardirqs last disabled at (52198): [] __up_console_sem+0x3f/0x70
[ 8.875289][ T166] softirqs last enabled at (51778): [] handle_softirqs+0x611/0x940
[ 8.875503][ T166] softirqs last disabled at (51671): [] __irq_exit_rcu+0x103/0x1c0
[ 8.875712][ T166] ---[ end trace 0000000000000000 ]---
[ 8.876129][ T166] ------------[ cut here ]------------
[ 8.876249][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: packetdrill/166
[ 8.876530][ T166] Modules linked in:
[ 8.876636][ T166] CPU: 0 UID: 0 PID: 166 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 8.876903][ T166] Tainted: [W]=WARN
[ 8.876997][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8.877146][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 8.877310][ 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
[ 8.877737][ T166] RSP: 0018:ffa00000007d7c58 EFLAGS: 00010286
[ 8.877887][ T166] RAX: 00000000ffffffa6 RBX: ff11000009108940 RCX: 1ff40000000faf51
[ 8.878064][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000091089f0
[ 8.878242][ T166] RBP: ff1100000adbc000 R08: 1fe220000122113f R09: ff1100000d830b58
[ 8.878434][ T166] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[ 8.878622][ T166] R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000000
[ 8.878803][ T166] FS: 0000000000a10400(0000) GS:ff1100007b7d3000(0000) knlGS:0000000000000000
[ 8.879010][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.879161][ T166] CR2: 00007f92e606e000 CR3: 000000000cafb005 CR4: 0000000000771ef0
[ 8.879431][ T166] PKRU: 55555554
[ 8.879520][ T166] Call Trace:
[ 8.879611][ T166]
[ 8.879672][ T166] ? rcu_is_watching+0x15/0xd0
[ 8.879867][ T166] rtnetlink_event+0xe0/0x1f0
[ 8.879990][ T166] notifier_call_chain+0xb0/0x320
[ 8.880111][ T166] netdev_update_features+0xa9/0xb0
[ 8.880228][ T166] ? netdev_sync_lower_features+0x4c0/0x4c0
[ 8.880463][ T166] __tun_chr_ioctl+0xc7f/0x2470
[ 8.880584][ T166] ? tun_chr_read_iter+0x210/0x210
[ 8.880702][ T166] ? fd_install+0x19b/0x3d0
[ 8.880825][ T166] ? update_socket_protocol+0x10/0x10
[ 8.881020][ T166] ? alloc_file_clone+0xe0/0xe0
[ 8.881175][ T166] __x64_sys_ioctl+0x11a/0x190
[ 8.881367][ T166] do_syscall_64+0x117/0xfc0
[ 8.881548][ T166] ? trace_hardirqs_off+0xd/0x30
[ 8.881851][ T166] ? exc_page_fault+0xee/0x100
[ 8.882003][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 8.882152][ T166] RIP: 0033:0x47cc8d
[ 8.882247][ 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
[ 8.882767][ T166] RSP: 002b:00007ffdca99fe00 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 8.883025][ T166] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 000000000047cc8d
[ 8.883204][ T166] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[ 8.883399][ T166] RBP: 00007ffdca99fe50 R08: 0000000000000000 R09: 0000000000000000
[ 8.883652][ T166] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdca9a0318
[ 8.883829][ T166] R13: 00007ffdca9a03a0 R14: 0000000000000002 R15: 0000000000543540
[ 8.884095][ T166]
[ 8.884184][ T166] irq event stamp: 52855
[ 8.884281][ T166] hardirqs last enabled at (52863): [] __up_console_sem+0x5a/0x70
[ 8.884493][ T166] hardirqs last disabled at (52872): [] __up_console_sem+0x3f/0x70
[ 8.884778][ T166] softirqs last enabled at (52438): [] __alloc_skb+0x4c5/0x5f0
[ 8.884984][ T166] softirqs last disabled at (52436): [] __alloc_skb+0x4c5/0x5f0
[ 8.885266][ T166] ---[ end trace 0000000000000000 ]---
[ 8.885756][ T166] ------------[ cut here ]------------
[ 8.885968][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: packetdrill/166
[ 8.886215][ T166] Modules linked in:
[ 8.886321][ T166] CPU: 0 UID: 0 PID: 166 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 8.886703][ T166] Tainted: [W]=WARN
[ 8.886799][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8.886958][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 8.887213][ 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
[ 8.887765][ T166] RSP: 0018:ffa00000007d7850 EFLAGS: 00010286
[ 8.887928][ T166] RAX: 00000000ffffffa6 RBX: ff11000009108f40 RCX: 1ff40000000faed0
[ 8.888117][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009108ff0
[ 8.888402][ T166] RBP: ff1100000adbc000 R08: 1fe22000012211ff R09: ff1100000d830b58
[ 8.888595][ T166] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[ 8.888783][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000005828900
[ 8.889060][ T166] FS: 0000000000a10400(0000) GS:ff1100007b7d3000(0000) knlGS:0000000000000000
[ 8.889316][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.889563][ T166] CR2: 00007f92e606e000 CR3: 000000000cafb005 CR4: 0000000000771ef0
[ 8.889845][ T166] PKRU: 55555554
[ 8.889941][ T166] Call Trace:
[ 8.890037][ T166]
[ 8.890102][ T166] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 8.890317][ T166] rtmsg_ifinfo+0x5c/0xb0
[ 8.890421][ T166] ? mark_held_locks+0x40/0x70
[ 8.890548][ T166] __dev_notify_flags+0x1b8/0x280
[ 8.890675][ T166] ? netif_change_name+0x8c0/0x8c0
[ 8.890804][ T166] ? __dev_change_flags+0x4a4/0x660
[ 8.891015][ T166] ? netif_set_allmulti+0x250/0x250
[ 8.891141][ T166] ? lock_acquire.part.0+0xbc/0x260
[ 8.891274][ T166] netif_change_flags+0xfe/0x190
[ 8.891487][ T166] ? cap_capable+0x1d6/0x3e0
[ 8.891618][ T166] dev_change_flags+0xa5/0x170
[ 8.891745][ T166] devinet_ioctl+0x10f0/0x1840
[ 8.891877][ T166] ? inet_ifa_byprefix+0x220/0x220
[ 8.892003][ T166] ? _copy_from_user+0x42/0x90
[ 8.892214][ T166] inet_ioctl+0x34b/0x3a0
[ 8.892317][ T166] ? inet_dgram_connect+0x3e0/0x3e0
[ 8.892449][ T166] ? __lock_acquire+0x508/0xc10
[ 8.892581][ T166] ? __might_fault+0x97/0x140
[ 8.892791][ T166] ? __might_fault+0x97/0x140
[ 8.892916][ T166] sock_do_ioctl+0x10e/0x270
[ 8.893045][ T166] ? __sock_recv_cmsgs+0x550/0x550
[ 8.893174][ T166] ? ioctl_file_clone+0xd0/0xd0
[ 8.893403][ T166] sock_ioctl+0x3cb/0x5f0
[ 8.893500][ T166] ? br_ioctl_call+0x80/0x80
[ 8.893628][ T166] ? fd_install+0x19b/0x3d0
[ 8.893759][ T166] ? update_socket_protocol+0x10/0x10
[ 8.893969][ T166] ? alloc_file_clone+0xe0/0xe0
[ 8.894099][ T166] __x64_sys_ioctl+0x11a/0x190
[ 8.894227][ T166] do_syscall_64+0x117/0xfc0
[ 8.894365][ T166] ? trace_hardirqs_off+0xd/0x30
[ 8.894574][ T166] ? exc_page_fault+0xee/0x100
[ 8.894703][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 8.894861][ T166] RIP: 0033:0x47cc8d
[ 8.894963][ 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
[ 8.895611][ T166] RSP: 002b:00007ffdca99fde0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 8.895926][ T166] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 000000000047cc8d
[ 8.896115][ T166] RDX: 00007ffdca99fe50 RSI: 0000000000008914 RDI: 0000000000000006
[ 8.896320][ T166] RBP: 00007ffdca99fe30 R08: 0000000000000000 R09: 0000000000000000
[ 8.896629][ T166] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdca9a0318
[ 8.896842][ T166] R13: 00007ffdca9a03a0 R14: 0000000000000002 R15: 0000000000543540
[ 8.897038][ T166]
[ 8.897218][ T166] irq event stamp: 53741
[ 8.897339][ T166] hardirqs last enabled at (53751): [] __up_console_sem+0x5a/0x70
[ 8.897570][ T166] hardirqs last disabled at (53758): [] __up_console_sem+0x3f/0x70
[ 8.897875][ T166] softirqs last enabled at (53182): [] __alloc_skb+0x4c5/0x5f0
[ 8.898096][ T166] softirqs last disabled at (53180): [] __alloc_skb+0x4c5/0x5f0
[ 8.898426][ T166] ---[ end trace 0000000000000000 ]---
[ 98.648047][ T166] ------------[ cut here ]------------
[ 98.648242][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: packetdrill/166
[ 98.648536][ T166] Modules linked in:
[ 98.648650][ T166] CPU: 0 UID: 0 PID: 166 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 98.648965][ T166] Tainted: [W]=WARN
[ 98.649070][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 98.649242][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 98.649429][ 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
[ 98.649923][ T166] RSP: 0018:ffa00000007d76f0 EFLAGS: 00010286
[ 98.650101][ T166] RAX: 00000000ffffffa6 RBX: ff11000008dbdcc0 RCX: 1ff40000000faea4
[ 98.650308][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008dbdd70
[ 98.650519][ T166] RBP: ff1100000adbc000 R08: 1fe22000011b7baf R09: ff1100000d830b58
[ 98.650737][ T166] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[ 98.650943][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000007d7790
[ 98.651154][ T166] FS: 0000000000000000(0000) GS:ff1100007b7d3000(0000) knlGS:0000000000000000
[ 98.652156][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 98.653116][ T166] CR2: 000055d7e04dbc90 CR3: 0000000016139003 CR4: 0000000000771ef0
[ 98.653972][ T166] PKRU: 55555554
[ 98.654078][ T166] Call Trace:
[ 98.654180][ T166]
[ 98.654252][ T166] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 98.654709][ T166] rtmsg_ifinfo+0x5c/0xb0
[ 98.654818][ T166] netif_close_many+0x2ac/0x640
[ 98.654958][ T166] ? asym_cpu_capacity_scan+0xa60/0xa60
[ 98.655096][ T166] ? lock_acquire.part.0+0xbc/0x260
[ 98.655233][ T166] ? find_held_lock+0x2b/0x80
[ 98.655377][ T166] ? __dev_close_many+0x530/0x530
[ 98.655515][ T166] ? netif_close_many_and_unlock+0x22/0x2c0
[ 98.655692][ T166] unregister_netdevice_many_notify+0x671/0x19a0
[ 98.655863][ T166] ? select_fallback_rq+0x510/0x510
[ 98.656001][ T166] ? unregister_netdevice_queued+0x80/0x80
[ 98.656172][ T166] ? find_held_lock+0x2b/0x80
[ 98.656310][ T166] ? find_held_lock+0x2b/0x80
[ 98.656455][ T166] ? __lock_release.isra.0+0x6b/0x1a0
[ 98.656598][ T166] ? __queue_work+0x315/0xc00
[ 98.656739][ T166] unregister_netdevice_queue+0x290/0x470
[ 98.656875][ T166] ? mark_held_locks+0x40/0x70
[ 98.657013][ T166] ? unregister_netdevice_many+0x20/0x20
[ 98.657152][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 98.657289][ T166] ? queue_delayed_work_on+0x95/0x100
[ 98.657435][ T166] __tun_detach+0xf36/0x1320
[ 98.657581][ T166] tun_chr_close+0xac/0x1b0
[ 98.657718][ T166] __fput+0x363/0xac0
[ 98.657827][ T166] task_work_run+0x12b/0x240
[ 98.657964][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 98.658103][ T166] ? task_work_cancel+0x30/0x30
[ 98.658240][ T166] ? kmem_cache_free+0xf8/0x560
[ 98.658383][ T166] do_exit+0x614/0xdc0
[ 98.658487][ T166] ? exit_notify+0x890/0x890
[ 98.658626][ T166] ? find_held_lock+0x2b/0x80
[ 98.658764][ T166] ? __lock_release.isra.0+0x6b/0x1a0
[ 98.658901][ T166] ? __rwlock_init+0x150/0x150
[ 98.659039][ T166] do_group_exit+0xb8/0x370
[ 98.659175][ T166] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160
[ 98.659347][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 98.659484][ T166] ? _raw_spin_unlock_irq+0x28/0x50
[ 98.659625][ T166] ? _raw_spin_unlock_irq+0x33/0x50
[ 98.659760][ T166] get_signal+0x172e/0x1820
[ 98.659900][ T166] ? __sys_sendto+0x2c9/0x400
[ 98.660038][ T166] ? __ia32_sys_getpeername+0xd0/0xd0
[ 98.660174][ T166] ? __might_fault+0x97/0x140
[ 98.660311][ T166] ? ptrace_signal+0x600/0x600
[ 98.660459][ T166] arch_do_signal_or_restart+0xc2/0x3a0
[ 98.660605][ T166] ? get_sigframe_size+0x20/0x20
[ 98.660743][ T166] ? rcu_is_watching+0x15/0xd0
[ 98.660882][ T166] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 98.661057][ T166] exit_to_user_mode_loop+0x86/0x520
[ 98.661194][ T166] ? rcu_is_watching+0x15/0xd0
[ 98.661339][ T166] do_syscall_64+0x437/0xfc0
[ 98.661476][ T166] ? irq_exit_rcu+0x1a/0x30
[ 98.661620][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 98.661790][ T166] RIP: 0033:0x4c2d9e
[ 98.661903][ T166] Code: Unable to access opcode bytes at 0x4c2d74.
[ 98.662115][ T166] RSP: 002b:00007ffdca99f770 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 98.662323][ T166] RAX: 0000000000000014 RBX: 0000000000000012 RCX: 00000000004c2d9e
[ 98.662537][ T166] RDX: 0000000000000014 RSI: 00007ffdca99f850 RDI: 0000000000000007
[ 98.662742][ T166] RBP: 00007ffdca99f780 R08: 00007ffdca99f810 R09: 000000000000000c
[ 98.662946][ T166] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdca9a0318
[ 98.663150][ T166] R13: 00007ffdca9a03a0 R14: 00007ffdca99f940 R15: 0000000000543540
[ 98.663370][ T166]
[ 98.663474][ T166] irq event stamp: 122990259
[ 98.663617][ T166] hardirqs last enabled at (122990267): [] __up_console_sem+0x5a/0x70
[ 98.663859][ T166] hardirqs last disabled at (122990274): [] __up_console_sem+0x3f/0x70
[ 98.664096][ T166] softirqs last enabled at (122989760): [] handle_softirqs+0x611/0x940
[ 98.664341][ T166] softirqs last disabled at (122989217): [] __irq_exit_rcu+0x103/0x1c0
[ 98.664582][ T166] ---[ end trace 0000000000000000 ]---
[ 98.672783][ T166] ------------[ cut here ]------------
[ 98.672948][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: packetdrill/166
[ 98.673216][ T166] Modules linked in:
[ 98.673323][ T166] CPU: 0 UID: 0 PID: 166 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 98.673636][ T166] Tainted: [W]=WARN
[ 98.673736][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 98.673906][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 98.674079][ 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
[ 98.674562][ T166] RSP: 0018:ffa00000007d7820 EFLAGS: 00010286
[ 98.674730][ T166] RAX: 00000000ffffffa6 RBX: ff11000008dbcdc0 RCX: 1ff40000000faeca
[ 98.674927][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008dbce70
[ 98.675128][ T166] RBP: ff1100000adbc000 R08: 1fe22000011b79cf R09: ff1100000d830b58
[ 98.675337][ T166] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 98.675542][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 98.675744][ T166] FS: 0000000000000000(0000) GS:ff1100007b7d3000(0000) knlGS:0000000000000000
[ 98.675975][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 98.676144][ T166] CR2: 000055d7e04dbc90 CR3: 0000000016139003 CR4: 0000000000771ef0
[ 98.676346][ T166] PKRU: 55555554
[ 98.676445][ T166] Call Trace:
[ 98.676550][ T166]
[ 98.676620][ T166] unregister_netdevice_many_notify+0x12ca/0x19a0
[ 98.676789][ T166] ? unregister_netdevice_queued+0x80/0x80
[ 98.676956][ T166] ? find_held_lock+0x2b/0x80
[ 98.677089][ T166] ? find_held_lock+0x2b/0x80
[ 98.677221][ T166] ? __lock_release.isra.0+0x6b/0x1a0
[ 98.677362][ T166] ? __queue_work+0x315/0xc00
[ 98.677497][ T166] unregister_netdevice_queue+0x290/0x470
[ 98.677633][ T166] ? mark_held_locks+0x40/0x70
[ 98.677764][ T166] ? unregister_netdevice_many+0x20/0x20
[ 98.677897][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 98.678033][ T166] ? queue_delayed_work_on+0x95/0x100
[ 98.678168][ T166] __tun_detach+0xf36/0x1320
[ 98.678305][ T166] tun_chr_close+0xac/0x1b0
[ 98.678442][ T166] __fput+0x363/0xac0
[ 98.678553][ T166] task_work_run+0x12b/0x240
[ 98.678685][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 98.678819][ T166] ? task_work_cancel+0x30/0x30
[ 98.678954][ T166] ? kmem_cache_free+0xf8/0x560
[ 98.679090][ T166] do_exit+0x614/0xdc0
[ 98.679192][ T166] ? exit_notify+0x890/0x890
[ 98.679326][ T166] ? find_held_lock+0x2b/0x80
[ 98.679465][ T166] ? __lock_release.isra.0+0x6b/0x1a0
[ 98.679602][ T166] ? __rwlock_init+0x150/0x150
[ 98.679735][ T166] do_group_exit+0xb8/0x370
[ 98.679867][ T166] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160
[ 98.680035][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 98.680169][ T166] ? _raw_spin_unlock_irq+0x28/0x50
[ 98.680303][ T166] ? _raw_spin_unlock_irq+0x33/0x50
[ 98.680440][ T166] get_signal+0x172e/0x1820
[ 98.680580][ T166] ? __sys_sendto+0x2c9/0x400
[ 98.680714][ T166] ? __ia32_sys_getpeername+0xd0/0xd0
[ 98.680845][ T166] ? __might_fault+0x97/0x140
[ 98.680980][ T166] ? ptrace_signal+0x600/0x600
[ 98.681118][ T166] arch_do_signal_or_restart+0xc2/0x3a0
[ 98.681256][ T166] ? get_sigframe_size+0x20/0x20
[ 98.681399][ T166] ? rcu_is_watching+0x15/0xd0
[ 98.681539][ T166] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 98.681706][ T166] exit_to_user_mode_loop+0x86/0x520
[ 98.681841][ T166] ? rcu_is_watching+0x15/0xd0
[ 98.681974][ T166] do_syscall_64+0x437/0xfc0
[ 98.682107][ T166] ? irq_exit_rcu+0x1a/0x30
[ 98.682242][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 98.682412][ T166] RIP: 0033:0x4c2d9e
[ 98.682519][ T166] Code: Unable to access opcode bytes at 0x4c2d74.
[ 98.682693][ T166] RSP: 002b:00007ffdca99f770 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 98.682894][ T166] RAX: 0000000000000014 RBX: 0000000000000012 RCX: 00000000004c2d9e
[ 98.683091][ T166] RDX: 0000000000000014 RSI: 00007ffdca99f850 RDI: 0000000000000007
[ 98.683287][ T166] RBP: 00007ffdca99f780 R08: 00007ffdca99f810 R09: 000000000000000c
[ 98.683493][ T166] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdca9a0318
[ 98.683696][ T166] R13: 00007ffdca9a03a0 R14: 00007ffdca99f940 R15: 0000000000543540
[ 98.683903][ T166]
[ 98.684003][ T166] irq event stamp: 122998917
[ 98.684133][ T166] hardirqs last enabled at (122998925): [] __up_console_sem+0x5a/0x70
[ 98.684371][ T166] hardirqs last disabled at (122998934): [] __up_console_sem+0x3f/0x70
[ 98.684609][ T166] softirqs last enabled at (122998278): [] __alloc_skb+0x4c5/0x5f0
[ 98.684841][ T166] softirqs last disabled at (122998276): [] __alloc_skb+0x4c5/0x5f0
[ 98.685071][ T166] ---[ end trace 0000000000000000 ]---
[ 98.702837][ T12] ------------[ cut here ]------------
[ 98.703028][ T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: kworker/u16:0/12
[ 98.703311][ T12] Modules linked in:
[ 98.703472][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 98.703757][ T12] Tainted: [W]=WARN
[ 98.703850][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 98.704009][ T12] Workqueue: netns cleanup_net
[ 98.704146][ T12] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 98.704308][ T12] 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
[ 98.704762][ T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[ 98.704922][ T12] RAX: 00000000ffffffa6 RBX: ff1100000212d840 RCX: 1ff4000000018ed5
[ 98.705111][ T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000212d8f0
[ 98.705297][ T12] RBP: ff11000009be9000 R08: 1fe2200000425b1f R09: ff11000001afd1d0
[ 98.705525][ T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[ 98.705720][ T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 98.705905][ T12] FS: 0000000000000000(0000) GS:ff1100007b853000(0000) knlGS:0000000000000000
[ 98.706123][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 98.706276][ T12] CR2: 00007f96e9bdd680 CR3: 0000000016139002 CR4: 0000000000771ef0
[ 98.706465][ T12] PKRU: 55555554
[ 98.706563][ T12] Call Trace:
[ 98.706655][ T12]
[ 98.706720][ T12] unregister_netdevice_many_notify+0x12ca/0x19a0
[ 98.706876][ T12] ? unregister_netdevice_queued+0x80/0x80
[ 98.707035][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 98.707161][ T12] default_device_exit_batch+0x38b/0x600
[ 98.707285][ T12] ? generic_xdp_install+0x400/0x400
[ 98.707419][ T12] ? ipmr_free_table+0x12e/0x2a0
[ 98.707547][ T12] ? unregister_netdev+0x60/0x60
[ 98.707671][ T12] ? rtnl_is_locked+0x15/0x20
[ 98.707793][ T12] ? nexthop_net_exit_rtnl+0x1f/0x260
[ 98.707918][ T12] ops_undo_list+0x2ce/0x8f0
[ 98.708041][ T12] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 98.708164][ T12] ? __lock_release.isra.0+0x6b/0x1a0
[ 98.708292][ T12] cleanup_net+0x431/0x890
[ 98.708421][ T12] ? net_passive_dec+0x1c0/0x1c0
[ 98.708546][ T12] ? process_one_work+0xdb7/0x1410
[ 98.708670][ T12] ? lock_acquire+0x134/0x160
[ 98.708793][ T12] ? rcu_is_watching+0x15/0xd0
[ 98.708920][ T12] process_one_work+0xdf8/0x1410
[ 98.709046][ T12] ? pwq_dec_nr_in_flight+0x710/0x710
[ 98.709169][ T12] ? lock_acquire.part.0+0xbc/0x260
[ 98.709296][ T12] worker_thread+0x4f1/0xd60
[ 98.709429][ T12] ? rescuer_thread+0x1320/0x1320
[ 98.709554][ T12] kthread+0x367/0x460
[ 98.709646][ T12] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 98.709800][ T12] ? kthread_affine_node+0x330/0x330
[ 98.709925][ T12] ret_from_fork+0x474/0x6b0
[ 98.710050][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 98.710202][ T12] ? __switch_to+0x5a3/0xe00
[ 98.710326][ T12] ? kthread_affine_node+0x330/0x330
[ 98.710486][ T12] ret_from_fork_asm+0x11/0x20
[ 98.710620][ T12]
[ 98.710712][ T12] irq event stamp: 2613
[ 98.710804][ T12] hardirqs last enabled at (2621): [] __up_console_sem+0x5a/0x70
[ 98.711019][ T12] hardirqs last disabled at (2628): [] __up_console_sem+0x3f/0x70
[ 98.711230][ T12] softirqs last enabled at (2248): [] handle_softirqs+0x611/0x940
[ 98.711450][ T12] softirqs last disabled at (2243): [] __irq_exit_rcu+0x103/0x1c0
[ 98.711666][ T12] ---[ end trace 0000000000000000 ]---