[ 8.307689][ T166] ------------[ cut here ]------------
[ 8.307914][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: unshare/166
[ 8.308201][ T166] Modules linked in:
[ 8.308327][ T166] CPU: 3 UID: 0 PID: 166 Comm: unshare Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 8.308584][ T166] Tainted: [W]=WARN
[ 8.308687][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8.308848][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 8.309023][ 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
[ 8.309475][ T166] RSP: 0018:ffa00000007e7ab0 EFLAGS: 00010286
[ 8.309640][ T166] RAX: 00000000ffffffa6 RBX: ff1100000b9ef240 RCX: 1ff40000000fcf1c
[ 8.309831][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b9ef2f0
[ 8.310025][ T166] RBP: ff1100000a0e9000 R08: 1fe220000173de5f R09: ff1100000cc08b80
[ 8.310214][ T166] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 8.310404][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a0e9000
[ 8.310600][ T166] FS: 00007f34de2f1740(0000) GS:ff1100007df53000(0000) knlGS:0000000000000000
[ 8.310823][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.310989][ T166] CR2: 000056295a6fd310 CR3: 000000000c722001 CR4: 0000000000771ef0
[ 8.311182][ T166] PKRU: 55555554
[ 8.311279][ T166] Call Trace:
[ 8.311375][ T166]
[ 8.311441][ T166] ? ip6_route_dev_notify+0x250/0x380
[ 8.311578][ T166] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 8.311711][ T166] ? notifier_call_chain+0xb0/0x320
[ 8.311840][ T166] rtmsg_ifinfo+0x5c/0xb0
[ 8.311942][ T166] register_netdevice+0x137a/0x1980
[ 8.312073][ T166] ? unregister_netdevice_queue+0x470/0x470
[ 8.312237][ T166] register_netdev+0x23/0x40
[ 8.312364][ T166] loopback_net_init+0x7d/0x150
[ 8.312495][ T166] ops_init+0x187/0x560
[ 8.312596][ T166] setup_net+0x11b/0x3b0
[ 8.312692][ T166] ? unregister_pernet_device+0x80/0x80
[ 8.312817][ T166] ? lockdep_init_map_type+0x5d/0x250
[ 8.312949][ T166] ? mutex_init_lockdep+0xf6/0x120
[ 8.313078][ T166] copy_net_ns+0x2fd/0x450
[ 8.313207][ T166] create_new_namespaces+0x371/0xa10
[ 8.313338][ T166] unshare_nsproxy_namespaces+0xa5/0x150
[ 8.313465][ T166] ksys_unshare+0x47e/0x8c0
[ 8.313598][ T166] ? walk_process_tree+0x350/0x350
[ 8.313728][ T166] __x64_sys_unshare+0x34/0x50
[ 8.313858][ T166] ? do_syscall_64+0x82/0xfc0
[ 8.313986][ T166] do_syscall_64+0x117/0xfc0
[ 8.314112][ T166] ? trace_hardirqs_off+0xd/0x30
[ 8.314241][ T166] ? exc_page_fault+0xee/0x100
[ 8.314371][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 8.314529][ T166] RIP: 0033:0x7f34de3ecbcb
[ 8.314667][ 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
[ 8.315123][ T166] RSP: 002b:00007ffd1b482988 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[ 8.315318][ T166] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f34de3ecbcb
[ 8.315508][ T166] RDX: 0000000000000000 RSI: 00007ffd1b4826f0 RDI: 0000000040000000
[ 8.315702][ T166] RBP: 00007ffd1b482d10 R08: 00007ffd1b4828e0 R09: 0000000000000000
[ 8.315897][ T166] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000040000000
[ 8.316089][ T166] R13: 0000000000000000 R14: 00000000ffffffff R15: 000056295a700b68
[ 8.316285][ T166]
[ 8.316381][ T166] irq event stamp: 15683
[ 8.316478][ T166] hardirqs last enabled at (15691): [] __up_console_sem+0x5a/0x70
[ 8.316704][ T166] hardirqs last disabled at (15698): [] __up_console_sem+0x3f/0x70
[ 8.316930][ T166] softirqs last enabled at (15192): [] __alloc_skb+0x4c5/0x5f0
[ 8.317152][ T166] softirqs last disabled at (15190): [] __alloc_skb+0x4c5/0x5f0
[ 8.317371][ T166] ---[ end trace 0000000000000000 ]---
[ 8.345002][ T166] ------------[ cut here ]------------
[ 8.345139][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: packetdrill/166
[ 8.345375][ T166] Modules linked in:
[ 8.345468][ T166] CPU: 3 UID: 0 PID: 166 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 8.345746][ T166] Tainted: [W]=WARN
[ 8.345839][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8.345993][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 8.346147][ 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
[ 8.346562][ T166] RSP: 0018:ffa00000007e7b58 EFLAGS: 00010286
[ 8.346718][ T166] RAX: 00000000ffffffa6 RBX: ff110000093cd6c0 RCX: 1ff40000000fcf31
[ 8.346894][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000093cd770
[ 8.347081][ T166] RBP: ff1100000b0d8000 R08: 1fe2200001279aef R09: ff1100000cc08b58
[ 8.347253][ T166] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 8.347425][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000b0d8000
[ 8.347601][ T166] FS: 000000002fde1400(0000) GS:ff1100007df53000(0000) knlGS:0000000000000000
[ 8.347809][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.347963][ T166] CR2: 00007fd0e016f000 CR3: 000000000cc13002 CR4: 0000000000771ef0
[ 8.348138][ T166] PKRU: 55555554
[ 8.348230][ T166] Call Trace:
[ 8.348318][ T166]
[ 8.348378][ T166] ? ip6_route_dev_notify+0x3d/0x380
[ 8.348496][ T166] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 8.348615][ T166] ? notifier_call_chain+0xb0/0x320
[ 8.348733][ T166] rtmsg_ifinfo+0x5c/0xb0
[ 8.348825][ T166] register_netdevice+0x137a/0x1980
[ 8.348947][ T166] ? unregister_netdevice_queue+0x470/0x470
[ 8.349093][ T166] ? alloc_netdev_mqs+0xec0/0x1410
[ 8.349211][ T166] tun_set_iff.constprop.0+0xc61/0x1850
[ 8.349331][ T166] ? tun_attach.isra.0+0x1630/0x1630
[ 8.349447][ T166] ? tun_get+0x106/0x240
[ 8.349536][ T166] __tun_chr_ioctl+0x4b0/0x2470
[ 8.349656][ T166] ? build_open_flags+0x620/0x620
[ 8.349774][ T166] ? tun_chr_read_iter+0x210/0x210
[ 8.350009][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 8.350127][ T166] ? __x64_sys_openat+0x10e/0x210
[ 8.350242][ T166] ? fput_close_sync+0xde/0x1b0
[ 8.350359][ T166] ? __ia32_sys_open+0x1b0/0x1b0
[ 8.350475][ T166] __x64_sys_ioctl+0x11a/0x190
[ 8.350595][ T166] do_syscall_64+0x117/0xfc0
[ 8.350710][ T166] ? trace_hardirqs_off+0xd/0x30
[ 8.350825][ T166] ? exc_page_fault+0xee/0x100
[ 8.350955][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 8.351098][ T166] RIP: 0033:0x47cc8d
[ 8.351190][ 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
[ 8.351608][ T166] RSP: 002b:00007ffc877130c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 8.351783][ T166] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 000000000047cc8d
[ 8.351961][ T166] RDX: 00007ffc87713140 RSI: 00000000400454ca RDI: 0000000000000005
[ 8.352131][ T166] RBP: 00007ffc87713110 R08: 0000000000000000 R09: 0000000000000000
[ 8.352302][ T166] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc87713618
[ 8.352476][ T166] R13: 00007ffc877136a0 R14: 0000000000000002 R15: 0000000000543540
[ 8.352661][ T166]
[ 8.352748][ T166] irq event stamp: 43151
[ 8.352835][ T166] hardirqs last enabled at (43159): [] __up_console_sem+0x5a/0x70
[ 8.353042][ T166] hardirqs last disabled at (43168): [] __up_console_sem+0x3f/0x70
[ 8.353245][ T166] softirqs last enabled at (42994): [] handle_softirqs+0x611/0x940
[ 8.353447][ T166] softirqs last disabled at (42757): [] __irq_exit_rcu+0x103/0x1c0
[ 8.353649][ T166] ---[ end trace 0000000000000000 ]---
[ 8.354045][ T166] ------------[ cut here ]------------
[ 8.354158][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: packetdrill/166
[ 8.354381][ T166] Modules linked in:
[ 8.354471][ T166] CPU: 3 UID: 0 PID: 166 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 8.354749][ T166] Tainted: [W]=WARN
[ 8.354835][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8.354981][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 8.355130][ 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
[ 8.355531][ T166] RSP: 0018:ffa00000007e7c58 EFLAGS: 00010286
[ 8.355676][ T166] RAX: 00000000ffffffa6 RBX: ff110000093cdcc0 RCX: 1ff40000000fcf51
[ 8.355848][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000093cdd70
[ 8.356020][ T166] RBP: ff1100000b0d8000 R08: 1fe2200001279baf R09: ff1100000cc08b58
[ 8.356188][ T166] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
[ 8.356356][ T166] R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000003
[ 8.356525][ T166] FS: 000000002fde1400(0000) GS:ff1100007df53000(0000) knlGS:0000000000000000
[ 8.356725][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.356871][ T166] CR2: 00007fd0e016f000 CR3: 000000000cc13002 CR4: 0000000000771ef0
[ 8.357043][ T166] PKRU: 55555554
[ 8.357138][ T166] Call Trace:
[ 8.357223][ T166]
[ 8.357282][ T166] ? rcu_is_watching+0x15/0xd0
[ 8.357398][ T166] rtnetlink_event+0xe0/0x1f0
[ 8.357512][ T166] notifier_call_chain+0xb0/0x320
[ 8.357631][ T166] netdev_update_features+0xa9/0xb0
[ 8.357743][ T166] ? netdev_sync_lower_features+0x4c0/0x4c0
[ 8.357889][ T166] __tun_chr_ioctl+0xc7f/0x2470
[ 8.358003][ T166] ? tun_chr_read_iter+0x210/0x210
[ 8.358118][ T166] ? fd_install+0x19b/0x3d0
[ 8.358238][ T166] ? update_socket_protocol+0x10/0x10
[ 8.358353][ T166] ? alloc_file_clone+0xe0/0xe0
[ 8.358470][ T166] __x64_sys_ioctl+0x11a/0x190
[ 8.358585][ T166] do_syscall_64+0x117/0xfc0
[ 8.358702][ T166] ? trace_hardirqs_off+0xd/0x30
[ 8.358817][ T166] ? exc_page_fault+0xee/0x100
[ 8.358936][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 8.359080][ T166] RIP: 0033:0x47cc8d
[ 8.359170][ 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
[ 8.359573][ T166] RSP: 002b:00007ffc87713100 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 8.359754][ T166] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 000000000047cc8d
[ 8.360080][ T166] RDX: 000000000000000f RSI: 00000000400454d0 RDI: 0000000000000005
[ 8.360250][ T166] RBP: 00007ffc87713150 R08: 0000000000000005 R09: 0000000000001ff0
[ 8.360420][ T166] R10: 0000000000000003 R11: 0000000000000246 R12: 00007ffc87713618
[ 8.360593][ T166] R13: 00007ffc877136a0 R14: 0000000000000002 R15: 0000000000543540
[ 8.360770][ T166]
[ 8.360859][ T166] irq event stamp: 44137
[ 8.360946][ T166] hardirqs last enabled at (44145): [] __up_console_sem+0x5a/0x70
[ 8.361143][ T166] hardirqs last disabled at (44152): [] __up_console_sem+0x3f/0x70
[ 8.361341][ T166] softirqs last enabled at (44092): [] handle_softirqs+0x611/0x940
[ 8.361541][ T166] softirqs last disabled at (43787): [] __irq_exit_rcu+0x103/0x1c0
[ 8.361738][ T166] ---[ end trace 0000000000000000 ]---
[ 8.362187][ T166] ------------[ cut here ]------------
[ 8.362308][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: packetdrill/166
[ 8.362548][ T166] Modules linked in:
[ 8.362691][ T166] CPU: 3 UID: 0 PID: 166 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 8.362975][ T166] Tainted: [W]=WARN
[ 8.363067][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8.363220][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 8.363380][ 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
[ 8.363814][ T166] RSP: 0018:ffa00000007e7850 EFLAGS: 00010286
[ 8.363973][ T166] RAX: 00000000ffffffa6 RBX: ff110000093cd0c0 RCX: 1ff40000000fced0
[ 8.364157][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000093cd170
[ 8.364340][ T166] RBP: ff1100000b0d8000 R08: 1fe2200001279a2f R09: ff1100000cc08b58
[ 8.364521][ T166] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[ 8.364708][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000057a8900
[ 8.364898][ T166] FS: 000000002fde1400(0000) GS:ff1100007df53000(0000) knlGS:0000000000000000
[ 8.365115][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.365270][ T166] CR2: 00007fd0e016f000 CR3: 000000000cc13002 CR4: 0000000000771ef0
[ 8.365453][ T166] PKRU: 55555554
[ 8.365542][ T166] Call Trace:
[ 8.365638][ T166]
[ 8.365700][ T166] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 8.365826][ T166] rtmsg_ifinfo+0x5c/0xb0
[ 8.365924][ T166] ? mark_held_locks+0x40/0x70
[ 8.366047][ T166] __dev_notify_flags+0x1b8/0x280
[ 8.366170][ T166] ? netif_change_name+0x8c0/0x8c0
[ 8.366292][ T166] ? __dev_change_flags+0x4a4/0x660
[ 8.366415][ T166] ? netif_set_allmulti+0x250/0x250
[ 8.366538][ T166] ? lock_acquire.part.0+0xbc/0x260
[ 8.366678][ T166] netif_change_flags+0xfe/0x190
[ 8.366801][ T166] ? cap_capable+0x1d6/0x3e0
[ 8.366928][ T166] dev_change_flags+0xa5/0x170
[ 8.367051][ T166] devinet_ioctl+0x10f0/0x1840
[ 8.367174][ T166] ? inet_ifa_byprefix+0x220/0x220
[ 8.367297][ T166] ? _copy_from_user+0x42/0x90
[ 8.367421][ T166] inet_ioctl+0x34b/0x3a0
[ 8.367514][ T166] ? inet_dgram_connect+0x3e0/0x3e0
[ 8.367644][ T166] ? __lock_acquire+0x508/0xc10
[ 8.367772][ T166] ? __might_fault+0x97/0x140
[ 8.367899][ T166] ? __might_fault+0x97/0x140
[ 8.368023][ T166] sock_do_ioctl+0x10e/0x270
[ 8.368146][ T166] ? __sock_recv_cmsgs+0x550/0x550
[ 8.368272][ T166] ? ioctl_file_clone+0xd0/0xd0
[ 8.368396][ T166] sock_ioctl+0x3cb/0x5f0
[ 8.368489][ T166] ? br_ioctl_call+0x80/0x80
[ 8.368619][ T166] ? fd_install+0x19b/0x3d0
[ 8.368742][ T166] ? update_socket_protocol+0x10/0x10
[ 8.368867][ T166] ? alloc_file_clone+0xe0/0xe0
[ 8.368993][ T166] __x64_sys_ioctl+0x11a/0x190
[ 8.369116][ T166] do_syscall_64+0x117/0xfc0
[ 8.369239][ T166] ? trace_hardirqs_off+0xd/0x30
[ 8.369361][ T166] ? exc_page_fault+0xee/0x100
[ 8.369485][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 8.369641][ T166] RIP: 0033:0x47cc8d
[ 8.369736][ 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
[ 8.370172][ T166] RSP: 002b:00007ffc877130e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 8.370358][ T166] RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 000000000047cc8d
[ 8.370537][ T166] RDX: 00007ffc87713150 RSI: 0000000000008914 RDI: 0000000000000006
[ 8.370721][ T166] RBP: 00007ffc87713130 R08: 0000000000000005 R09: 0000000000001ff0
[ 8.370908][ T166] R10: 0000000000000003 R11: 0000000000000246 R12: 00007ffc87713618
[ 8.371092][ T166] R13: 00007ffc877136a0 R14: 0000000000000002 R15: 0000000000543540
[ 8.371279][ T166]
[ 8.371370][ T166] irq event stamp: 45015
[ 8.371461][ T166] hardirqs last enabled at (45023): [] __up_console_sem+0x5a/0x70
[ 8.371675][ T166] hardirqs last disabled at (45030): [] __up_console_sem+0x3f/0x70
[ 8.371891][ T166] softirqs last enabled at (44460): [] __alloc_skb+0x4c5/0x5f0
[ 8.372101][ T166] softirqs last disabled at (44458): [] __alloc_skb+0x4c5/0x5f0
[ 8.372310][ T166] ---[ end trace 0000000000000000 ]---
[ 98.167044][ T166] ------------[ cut here ]------------
[ 98.167238][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: packetdrill/166
[ 98.167531][ T166] Modules linked in:
[ 98.167645][ T166] CPU: 3 UID: 0 PID: 166 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 98.167972][ T166] Tainted: [W]=WARN
[ 98.168080][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 98.168259][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 98.168449][ 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
[ 98.168947][ T166] RSP: 0018:ffa00000007e76f0 EFLAGS: 00010286
[ 98.169124][ T166] RAX: 00000000ffffffa6 RBX: ff110000093b3cc0 RCX: 1ff40000000fcea4
[ 98.169335][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000093b3d70
[ 98.169541][ T166] RBP: ff1100000b0d8000 R08: 1fe22000012767af R09: ff1100000cc08b58
[ 98.169747][ T166] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[ 98.170625][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000007e7790
[ 98.170842][ T166] FS: 0000000000000000(0000) GS:ff1100007df53000(0000) knlGS:0000000000000000
[ 98.171652][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 98.171837][ T166] CR2: 0000556bd0fb7c50 CR3: 0000000026139006 CR4: 0000000000771ef0
[ 98.172827][ T166] PKRU: 55555554
[ 98.173682][ T166] Call Trace:
[ 98.173792][ T166]
[ 98.174599][ T166] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 98.174747][ T166] rtmsg_ifinfo+0x5c/0xb0
[ 98.175475][ T166] netif_close_many+0x2ac/0x640
[ 98.175618][ T166] ? asym_cpu_capacity_scan+0xa60/0xa60
[ 98.175757][ T166] ? lock_acquire.part.0+0xbc/0x260
[ 98.175899][ T166] ? find_held_lock+0x2b/0x80
[ 98.176036][ T166] ? __dev_close_many+0x530/0x530
[ 98.176176][ T166] ? netif_close_many_and_unlock+0x22/0x2c0
[ 98.176351][ T166] unregister_netdevice_many_notify+0x671/0x19a0
[ 98.176524][ T166] ? select_fallback_rq+0x510/0x510
[ 98.176662][ T166] ? unregister_netdevice_queued+0x80/0x80
[ 98.176832][ T166] ? find_held_lock+0x2b/0x80
[ 98.176971][ T166] ? find_held_lock+0x2b/0x80
[ 98.177112][ T166] ? __lock_release.isra.0+0x6b/0x1a0
[ 98.177250][ T166] ? __queue_work+0x315/0xc00
[ 98.177395][ T166] unregister_netdevice_queue+0x290/0x470
[ 98.177533][ T166] ? mark_held_locks+0x40/0x70
[ 98.177670][ T166] ? unregister_netdevice_many+0x20/0x20
[ 98.177807][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 98.177952][ T166] ? queue_delayed_work_on+0x95/0x100
[ 98.178092][ T166] __tun_detach+0xf36/0x1320
[ 98.178236][ T166] tun_chr_close+0xac/0x1b0
[ 98.178382][ T166] __fput+0x363/0xac0
[ 98.178493][ T166] task_work_run+0x12b/0x240
[ 98.178634][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 98.178772][ T166] ? task_work_cancel+0x30/0x30
[ 98.178920][ T166] ? kmem_cache_free+0xf8/0x560
[ 98.179062][ T166] do_exit+0x614/0xdc0
[ 98.179169][ T166] ? exit_notify+0x890/0x890
[ 98.179308][ T166] ? find_held_lock+0x2b/0x80
[ 98.179450][ T166] ? __lock_release.isra.0+0x6b/0x1a0
[ 98.179589][ T166] ? __rwlock_init+0x150/0x150
[ 98.179730][ T166] do_group_exit+0xb8/0x370
[ 98.179871][ T166] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160
[ 98.180043][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 98.180180][ T166] ? _raw_spin_unlock_irq+0x28/0x50
[ 98.180318][ T166] ? _raw_spin_unlock_irq+0x33/0x50
[ 98.180458][ T166] get_signal+0x172e/0x1820
[ 98.180600][ T166] ? __sys_sendto+0x2c9/0x400
[ 98.180740][ T166] ? __ia32_sys_getpeername+0xd0/0xd0
[ 98.180884][ T166] ? ptrace_signal+0x600/0x600
[ 98.181026][ T166] arch_do_signal_or_restart+0xc2/0x3a0
[ 98.181166][ T166] ? get_sigframe_size+0x20/0x20
[ 98.181307][ T166] ? rcu_is_watching+0x15/0xd0
[ 98.181451][ T166] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 98.181627][ T166] exit_to_user_mode_loop+0x86/0x520
[ 98.181767][ T166] ? rcu_is_watching+0x15/0xd0
[ 98.181911][ T166] do_syscall_64+0x437/0xfc0
[ 98.182050][ T166] ? irq_exit_rcu+0x1a/0x30
[ 98.182206][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 98.182376][ T166] RIP: 0033:0x4c2d9e
[ 98.182488][ T166] Code: Unable to access opcode bytes at 0x4c2d74.
[ 98.182679][ T166] RSP: 002b:00007ffc87712a70 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 98.182888][ T166] RAX: 0000000000000014 RBX: 0000000000000016 RCX: 00000000004c2d9e
[ 98.183092][ T166] RDX: 0000000000000014 RSI: 00007ffc87712b50 RDI: 0000000000000007
[ 98.183292][ T166] RBP: 00007ffc87712a80 R08: 00007ffc87712b10 R09: 000000000000000c
[ 98.183494][ T166] R10: 0000000000000000 R11: 0000000000000202 R12: 000000002fdeb3f0
[ 98.183694][ T166] R13: 00007ffc877136a0 R14: 00007ffc87712c40 R15: 0000000000543540
[ 98.183905][ T166]
[ 98.184006][ T166] irq event stamp: 140651089
[ 98.184140][ T166] hardirqs last enabled at (140651097): [] __up_console_sem+0x5a/0x70
[ 98.184373][ T166] hardirqs last disabled at (140651104): [] __up_console_sem+0x3f/0x70
[ 98.184608][ T166] softirqs last enabled at (140650608): [] handle_softirqs+0x611/0x940
[ 98.184840][ T166] softirqs last disabled at (140649585): [] __irq_exit_rcu+0x103/0x1c0
[ 98.185077][ T166] ---[ end trace 0000000000000000 ]---
[ 98.187790][ T166] ------------[ cut here ]------------
[ 98.188520][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: packetdrill/166
[ 98.188783][ T166] Modules linked in:
[ 98.188938][ T166] CPU: 3 UID: 0 PID: 166 Comm: packetdrill Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 98.189232][ T166] Tainted: [W]=WARN
[ 98.189340][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 98.189505][ T166] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 98.189683][ 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
[ 98.190222][ T166] RSP: 0018:ffa00000007e7820 EFLAGS: 00010286
[ 98.190404][ T166] RAX: 00000000ffffffa6 RBX: ff11000008e173c0 RCX: 1ff40000000fceca
[ 98.190625][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008e17470
[ 98.190826][ T166] RBP: ff1100000b0d8000 R08: 1fe22000011c2e8f R09: ff1100000cc08b58
[ 98.191047][ T166] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[ 98.191260][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 98.191461][ T166] FS: 0000000000000000(0000) GS:ff1100007df53000(0000) knlGS:0000000000000000
[ 98.191691][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 98.191864][ T166] CR2: 0000556bd0fb7c50 CR3: 0000000026139006 CR4: 0000000000771ef0
[ 98.192063][ T166] PKRU: 55555554
[ 98.192160][ T166] Call Trace:
[ 98.192257][ T166]
[ 98.192329][ T166] unregister_netdevice_many_notify+0x12ca/0x19a0
[ 98.192497][ T166] ? unregister_netdevice_queued+0x80/0x80
[ 98.192658][ T166] ? find_held_lock+0x2b/0x80
[ 98.192789][ T166] ? find_held_lock+0x2b/0x80
[ 98.192927][ T166] ? __lock_release.isra.0+0x6b/0x1a0
[ 98.193152][ T166] ? __queue_work+0x315/0xc00
[ 98.193377][ T166] unregister_netdevice_queue+0x290/0x470
[ 98.193508][ T166] ? mark_held_locks+0x40/0x70
[ 98.193641][ T166] ? unregister_netdevice_many+0x20/0x20
[ 98.193771][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 98.193907][ T166] ? queue_delayed_work_on+0x95/0x100
[ 98.194038][ T166] __tun_detach+0xf36/0x1320
[ 98.194172][ T166] tun_chr_close+0xac/0x1b0
[ 98.194302][ T166] __fput+0x363/0xac0
[ 98.194495][ T166] task_work_run+0x12b/0x240
[ 98.194625][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 98.194756][ T166] ? task_work_cancel+0x30/0x30
[ 98.194890][ T166] ? kmem_cache_free+0xf8/0x560
[ 98.195107][ T166] do_exit+0x614/0xdc0
[ 98.195207][ T166] ? exit_notify+0x890/0x890
[ 98.195339][ T166] ? find_held_lock+0x2b/0x80
[ 98.195468][ T166] ? __lock_release.isra.0+0x6b/0x1a0
[ 98.195598][ T166] ? __rwlock_init+0x150/0x150
[ 98.195812][ T166] do_group_exit+0xb8/0x370
[ 98.195946][ T166] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160
[ 98.196106][ T166] ? lockdep_hardirqs_on+0x8c/0x130
[ 98.196236][ T166] ? _raw_spin_unlock_irq+0x28/0x50
[ 98.196370][ T166] ? _raw_spin_unlock_irq+0x33/0x50
[ 98.196498][ T166] get_signal+0x172e/0x1820
[ 98.196630][ T166] ? __sys_sendto+0x2c9/0x400
[ 98.196764][ T166] ? __ia32_sys_getpeername+0xd0/0xd0
[ 98.196900][ T166] ? ptrace_signal+0x600/0x600
[ 98.197034][ T166] arch_do_signal_or_restart+0xc2/0x3a0
[ 98.197169][ T166] ? get_sigframe_size+0x20/0x20
[ 98.197302][ T166] ? rcu_is_watching+0x15/0xd0
[ 98.197439][ T166] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 98.197602][ T166] exit_to_user_mode_loop+0x86/0x520
[ 98.197733][ T166] ? rcu_is_watching+0x15/0xd0
[ 98.197868][ T166] do_syscall_64+0x437/0xfc0
[ 98.198000][ T166] ? irq_exit_rcu+0x1a/0x30
[ 98.198131][ T166] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 98.198291][ T166] RIP: 0033:0x4c2d9e
[ 98.198399][ T166] Code: Unable to access opcode bytes at 0x4c2d74.
[ 98.198564][ T166] RSP: 002b:00007ffc87712a70 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 98.198762][ T166] RAX: 0000000000000014 RBX: 0000000000000016 RCX: 00000000004c2d9e
[ 98.198961][ T166] RDX: 0000000000000014 RSI: 00007ffc87712b50 RDI: 0000000000000007
[ 98.199153][ T166] RBP: 00007ffc87712a80 R08: 00007ffc87712b10 R09: 000000000000000c
[ 98.199353][ T166] R10: 0000000000000000 R11: 0000000000000202 R12: 000000002fdeb3f0
[ 98.199549][ T166] R13: 00007ffc877136a0 R14: 00007ffc87712c40 R15: 0000000000543540
[ 98.199748][ T166]
[ 98.199847][ T166] irq event stamp: 140656191
[ 98.199982][ T166] hardirqs last enabled at (140656201): [] __up_console_sem+0x5a/0x70
[ 98.200209][ T166] hardirqs last disabled at (140656208): [] __up_console_sem+0x3f/0x70
[ 98.200442][ T166] softirqs last enabled at (140655596): [] handle_softirqs+0x611/0x940
[ 98.200669][ T166] softirqs last disabled at (140654531): [] __irq_exit_rcu+0x103/0x1c0
[ 98.200899][ T166] ---[ end trace 0000000000000000 ]---
[ 98.215905][ T12] ------------[ cut here ]------------
[ 98.216077][ T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: kworker/u16:0/12
[ 98.216360][ T12] Modules linked in:
[ 98.216479][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 98.216759][ T12] Tainted: [W]=WARN
[ 98.216850][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 98.217298][ T12] Workqueue: netns cleanup_net
[ 98.217438][ T12] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 98.217594][ 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
[ 98.218052][ T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[ 98.218204][ T12] RAX: 00000000ffffffa6 RBX: ff11000008da4f40 RCX: 1ff4000000018ed5
[ 98.218390][ T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008da4ff0
[ 98.218569][ T12] RBP: ff1100000a0e9000 R08: 1fe22000011b49ff R09: ff11000001afd1d0
[ 98.218747][ T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 98.218936][ T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 98.219122][ T12] FS: 0000000000000000(0000) GS:ff1100007ddd3000(0000) knlGS:0000000000000000
[ 98.219335][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 98.219485][ T12] CR2: 00007f5503a49f98 CR3: 0000000026139001 CR4: 0000000000771ef0
[ 98.219661][ T12] PKRU: 55555554
[ 98.219749][ T12] Call Trace:
[ 98.219837][ T12]
[ 98.219906][ T12] unregister_netdevice_many_notify+0x12ca/0x19a0
[ 98.220058][ T12] ? unregister_netdevice_queued+0x80/0x80
[ 98.220207][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 98.220332][ T12] default_device_exit_batch+0x38b/0x600
[ 98.220450][ T12] ? generic_xdp_install+0x400/0x400
[ 98.220566][ T12] ? ipmr_free_table+0x12e/0x2a0
[ 98.220685][ T12] ? unregister_netdev+0x60/0x60
[ 98.220804][ T12] ? rtnl_is_locked+0x15/0x20
[ 98.220925][ T12] ? nexthop_net_exit_rtnl+0x1f/0x260
[ 98.221045][ T12] ops_undo_list+0x2ce/0x8f0
[ 98.221166][ T12] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 98.221283][ T12] ? __lock_release.isra.0+0x6b/0x1a0
[ 98.221411][ T12] cleanup_net+0x431/0x890
[ 98.221528][ T12] ? net_passive_dec+0x1c0/0x1c0
[ 98.221650][ T12] ? process_one_work+0xdb7/0x1410
[ 98.221769][ T12] ? lock_acquire+0x134/0x160
[ 98.221896][ T12] ? rcu_is_watching+0x15/0xd0
[ 98.222018][ T12] process_one_work+0xdf8/0x1410
[ 98.222148][ T12] ? pwq_dec_nr_in_flight+0x710/0x710
[ 98.222266][ T12] ? lock_acquire.part.0+0xbc/0x260
[ 98.222393][ T12] worker_thread+0x4f1/0xd60
[ 98.222515][ T12] ? rescuer_thread+0x1320/0x1320
[ 98.222637][ T12] kthread+0x367/0x460
[ 98.222730][ T12] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 98.222885][ T12] ? kthread_affine_node+0x330/0x330
[ 98.224089][ T12] ret_from_fork+0x474/0x6b0
[ 98.224230][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 98.224387][ T12] ? __switch_to+0x5a3/0xe00
[ 98.224514][ T12] ? kthread_affine_node+0x330/0x330
[ 98.224633][ T12] ret_from_fork_asm+0x11/0x20
[ 98.224765][ T12]
[ 98.224865][ T12] irq event stamp: 3243
[ 98.224956][ T12] hardirqs last enabled at (3251): [] __up_console_sem+0x5a/0x70
[ 98.225162][ T12] hardirqs last disabled at (3258): [] __up_console_sem+0x3f/0x70
[ 98.225369][ T12] softirqs last enabled at (3104): [] handle_softirqs+0x611/0x940
[ 98.225573][ T12] softirqs last disabled at (3099): [] __irq_exit_rcu+0x103/0x1c0
[ 98.225781][ T12] ---[ end trace 0000000000000000 ]---