[ 9.429680][ T174] ------------[ cut here ]------------
[ 9.429937][ T174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/174
[ 9.430237][ T174] Modules linked in:
[ 9.430462][ T174] CPU: 2 UID: 0 PID: 174 Comm: ip Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.430780][ T174] Tainted: [W]=WARN
[ 9.430928][ T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.431150][ T174] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.431379][ T174] 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 a8 cb f0 ff b9 a6 ff ff
[ 9.431965][ T174] RSP: 0018:ffa0000000847aa8 EFLAGS: 00010286
[ 9.432189][ T174] RAX: 00000000ffffffa6 RBX: ff11000005318640 RCX: 1ff4000000108f1b
[ 9.432454][ T174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000053186f0
[ 9.432703][ T174] RBP: ff1100000a2ec000 R08: 1fe2200000a630df R09: ff1100000c325180
[ 9.432948][ T174] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.433203][ T174] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a2ec000
[ 9.433475][ T174] FS: 00007f248e41c840(0000) GS:ff1100007b479000(0000) knlGS:0000000000000000
[ 9.433821][ T174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.434056][ T174] CR2: 0000000000479648 CR3: 000000000cecf003 CR4: 0000000000771ef0
[ 9.434313][ T174] PKRU: 55555554
[ 9.434474][ T174] Call Trace:
[ 9.434622][ T174]
[ 9.434739][ T174] ? ip6_route_dev_notify+0x250/0x380
[ 9.434922][ T174] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.435114][ T174] ? notifier_call_chain+0xb0/0x320
[ 9.435311][ T174] rtmsg_ifinfo+0x5c/0xb0
[ 9.435475][ T174] register_netdevice+0x1526/0x1bc0
[ 9.435660][ T174] ? unregister_netdevice_queue+0x470/0x470
[ 9.435873][ T174] ? alloc_netdev_mqs+0xeda/0x1430
[ 9.436069][ T174] register_netdev+0x23/0x40
[ 9.436252][ T174] loopback_net_init+0x7d/0x150
[ 9.436460][ T174] ops_init+0x187/0x560
[ 9.436617][ T174] setup_net+0x11b/0x3b0
[ 9.436767][ T174] ? unregister_pernet_device+0x80/0x80
[ 9.436948][ T174] ? lockdep_init_map_type+0x5d/0x250
[ 9.437142][ T174] ? mutex_init_lockdep+0xf6/0x120
[ 9.437337][ T174] copy_net_ns+0x2fd/0x450
[ 9.437533][ T174] create_new_namespaces+0x371/0xa10
[ 9.437719][ T174] unshare_nsproxy_namespaces+0xa5/0x150
[ 9.437904][ T174] ksys_unshare+0x47e/0x8c0
[ 9.438101][ T174] ? walk_process_tree+0x350/0x350
[ 9.438291][ T174] ? __ia32_sys_open+0x1b0/0x1b0
[ 9.438491][ T174] __x64_sys_unshare+0x34/0x50
[ 9.438672][ T174] ? do_syscall_64+0x82/0xfc0
[ 9.438853][ T174] do_syscall_64+0x117/0xfc0
[ 9.439047][ T174] ? trace_hardirqs_off+0xd/0x30
[ 9.439233][ T174] ? exc_page_fault+0xee/0x100
[ 9.439438][ T174] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.439652][ T174] RIP: 0033:0x7f248e6debcb
[ 9.439841][ T174] 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
[ 9.440374][ T174] RSP: 002b:00007fff62cf1168 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[ 9.440639][ T174] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f248e6debcb
[ 9.440885][ T174] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[ 9.441140][ T174] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[ 9.441396][ T174] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff62cf3390
[ 9.441657][ T174] R13: 0000000000000001 R14: 00007f248e41c6f8 R15: 00007fff62cf386a
[ 9.441911][ T174]
[ 9.442068][ T174] irq event stamp: 20267
[ 9.442214][ T174] hardirqs last enabled at (20277): [] __up_console_sem+0x5a/0x70
[ 9.442511][ T174] hardirqs last disabled at (20288): [] __up_console_sem+0x3f/0x70
[ 9.442792][ T174] softirqs last enabled at (19710): [] handle_softirqs+0x611/0x940
[ 9.443080][ T174] softirqs last disabled at (19699): [] __irq_exit_rcu+0x103/0x1c0
[ 9.443385][ T174] ---[ end trace 0000000000000000 ]---
[ 9.575108][ T173] ------------[ cut here ]------------
[ 9.575346][ T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: python3/173
[ 9.575735][ T173] Modules linked in: netdevsim
[ 9.575939][ T173] CPU: 0 UID: 0 PID: 173 Comm: python3 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 9.576289][ T173] Tainted: [W]=WARN
[ 9.576419][ T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.576673][ T173] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 9.576891][ T173] 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 a8 cb f0 ff b9 a6 ff ff
[ 9.577571][ T173] RSP: 0018:ffa00000007f7500 EFLAGS: 00010286
[ 9.577783][ T173] RAX: 00000000ffffffa6 RBX: ff1100000a40cc40 RCX: 1ff40000000fee66
[ 9.578045][ T173] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a40ccf0
[ 9.578298][ T173] RBP: ff11000008ab2000 R08: 1fe220000148199f R09: ff1100000c322f48
[ 9.578553][ T173] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 9.578798][ T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008ab2000
[ 9.579053][ T173] FS: 00007fae5888f400(0000) GS:ff1100007b379000(0000) knlGS:0000000000000000
[ 9.579349][ T173] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.579566][ T173] CR2: 00007fae58c900a1 CR3: 0000000005e82001 CR4: 0000000000771ef0
[ 9.579816][ T173] PKRU: 55555554
[ 9.579941][ T173] Call Trace:
[ 9.580071][ T173]
[ 9.580159][ T173] rtmsg_ifinfo_event.part.0+0x2c/0x130
[ 9.580335][ T173] rtmsg_ifinfo+0x5c/0xb0
[ 9.580468][ T173] register_netdevice+0x1526/0x1bc0
[ 9.580638][ T173] ? unregister_netdevice_queue+0x470/0x470
[ 9.580846][ T173] ? __debugfs_create_file+0x2cf/0x3c0
[ 9.581023][ T173] nsim_init_netdevsim+0x80e/0xcb0 [netdevsim]
[ 9.581237][ T173] nsim_create+0x45b/0x5b0 [netdevsim]
[ 9.581411][ T173] __nsim_dev_port_add+0x30b/0x7a0 [netdevsim]
[ 9.581624][ T173] ? add_timer_on+0x580/0x580
[ 9.581792][ T173] ? nsim_dev_get_vfs+0x90/0x90 [netdevsim]
[ 9.582006][ T173] ? is_module_address+0x68/0x110
[ 9.582174][ T173] ? static_obj+0x5d/0x90
[ 9.582308][ T173] ? mark_held_locks+0x40/0x70
[ 9.582483][ T173] ? nsim_dev_hwstats_init+0x3a4/0x4d0 [netdevsim]
[ 9.582708][ T173] nsim_drv_probe+0x59e/0x8d0 [netdevsim]
[ 9.582879][ T173] call_driver_probe+0x61/0x1c0
[ 9.583049][ T173] really_probe+0x199/0x760
[ 9.583215][ T173] ? driver_probe_device+0x130/0x130
[ 9.583387][ T173] __driver_probe_device+0x1dc/0x430
[ 9.583561][ T173] driver_probe_device+0x4a/0x130
[ 9.583727][ T173] __device_attach_driver+0x16d/0x2a0
[ 9.583895][ T173] bus_for_each_drv+0x135/0x1e0
[ 9.584066][ T173] ? bus_find_device_reverse+0x1c0/0x1c0
[ 9.584236][ T173] __device_attach+0x1a6/0x410
[ 9.584406][ T173] ? __rwlock_init+0x150/0x150
[ 9.584578][ T173] ? __driver_attach_async_helper+0x2a0/0x2a0
[ 9.584785][ T173] ? do_raw_spin_unlock+0x59/0x250
[ 9.584958][ T173] ? _raw_spin_unlock+0x2d/0x50
[ 9.585130][ T173] device_initial_probe+0x8b/0xc0
[ 9.585302][ T173] bus_probe_device+0x63/0x160
[ 9.585475][ T173] device_add+0xb16/0x1130
[ 9.585642][ T173] ? __fw_devlink_link_to_consumers.isra.0+0x2d0/0x2d0
[ 9.585847][ T173] ? __init_waitqueue_head+0xcb/0x160
[ 9.586019][ T173] ? pm_runtime_init+0x323/0x3f0
[ 9.586187][ T173] new_device_store+0x3d4/0x730 [netdevsim]
[ 9.586404][ T173] ? __lock_release.isra.0+0x6b/0x1a0
[ 9.586577][ T173] ? new_port_store+0x1a0/0x1a0 [netdevsim]
[ 9.586784][ T173] ? sysfs_file_kobj+0xb3/0x1e0
[ 9.586959][ T173] ? sysfs_file_kobj+0xbd/0x1e0
[ 9.587126][ T173] ? sysfs_file_ops+0x140/0x140
[ 9.587298][ T173] kernfs_fop_write_iter+0x335/0x510
[ 9.587469][ T173] ? kernfs_ops+0xf0/0xf0
[ 9.587595][ T173] new_sync_write+0x333/0x750
[ 9.587763][ T173] ? __lock_acquire+0x508/0xc10
[ 9.587929][ T173] ? new_sync_read+0x740/0x740
[ 9.588101][ T173] ? lock_acquire.part.0+0xbc/0x260
[ 9.588271][ T173] ? ksys_write+0x116/0x250
[ 9.588447][ T173] vfs_write+0x6a4/0xc10
[ 9.588574][ T173] ksys_write+0x116/0x250
[ 9.588699][ T173] ? __ia32_sys_read+0xc0/0xc0
[ 9.588865][ T173] ? kernfs_fop_llseek+0x160/0x1f0
[ 9.589037][ T173] ? rcu_is_watching+0x15/0xd0
[ 9.589205][ T173] do_syscall_64+0x117/0xfc0
[ 9.589378][ T173] ? irq_exit_rcu+0x1a/0x30
[ 9.589552][ T173] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 9.589759][ T173] RIP: 0033:0x7fae58a1708e
[ 9.589932][ T173] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
[ 9.590532][ T173] RSP: 002b:00007fff7893adb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9.590782][ T173] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007fae58a1708e
[ 9.591034][ T173] RDX: 0000000000000009 RSI: 000055bb9e73c110 RDI: 0000000000000006
[ 9.591286][ T173] RBP: 00007fff7893adc0 R08: 0000000000000000 R09: 0000000000000000
[ 9.591539][ T173] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fae5888f390
[ 9.591785][ T173] R13: 000055bb9e73c110 R14: 0000000000000006 R15: 00007fae5881d0d0
[ 9.592045][ T173]
[ 9.592169][ T173] irq event stamp: 336949
[ 9.592300][ T173] hardirqs last enabled at (336957): [] __up_console_sem+0x5a/0x70
[ 9.592594][ T173] hardirqs last disabled at (336966): [] __up_console_sem+0x3f/0x70
[ 9.592879][ T173] softirqs last enabled at (336296): [] handle_softirqs+0x611/0x940
[ 9.593166][ T173] softirqs last disabled at (336211): [] __irq_exit_rcu+0x103/0x1c0
[ 9.593466][ T173] ---[ end trace 0000000000000000 ]---
[ 10.163658][ T12] ------------[ cut here ]------------
[ 10.163896][ T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: kworker/u16:0/12
[ 10.164161][ T12] Modules linked in: netdevsim
[ 10.164334][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.1.0-rc4-virtme #1 PREEMPT(full)
[ 10.164664][ T12] Tainted: [W]=WARN
[ 10.164760][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.164917][ T12] Workqueue: netns cleanup_net
[ 10.165091][ T12] RIP: 0010:rtmsg_ifinfo_build_skb+0x1a6/0x250
[ 10.165253][ 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 a8 cb f0 ff b9 a6 ff ff
[ 10.165707][ T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[ 10.165864][ T12] RAX: 00000000ffffffa6 RBX: ff1100000a784c40 RCX: 1ff4000000018ed5
[ 10.166051][ T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a784cf0
[ 10.166234][ T12] RBP: ff1100000a2ec000 R08: 1fe22000014f099f R09: ff11000001b051d0
[ 10.166431][ T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[ 10.166622][ T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 10.166804][ T12] FS: 0000000000000000(0000) GS:ff1100007b379000(0000) knlGS:0000000000000000
[ 10.167022][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 10.167190][ T12] CR2: 00007f2b400c8620 CR3: 000000002b739003 CR4: 0000000000771ef0
[ 10.167383][ T12] PKRU: 55555554
[ 10.167482][ T12] Call Trace:
[ 10.167574][ T12]
[ 10.167639][ T12] unregister_netdevice_many_notify+0xce3/0x1b30
[ 10.167798][ T12] ? unregister_netdevice_queued+0x80/0x80
[ 10.167958][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.168085][ T12] default_device_exit_batch+0x38b/0x600
[ 10.168208][ T12] ? unregister_netdev+0x60/0x60
[ 10.168337][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0
[ 10.168470][ T12] ops_undo_list+0x2ce/0x8f0
[ 10.168598][ T12] ? rtnl_net_dumpid_one+0x2d0/0x2d0
[ 10.168727][ T12] ? __lock_release.isra.0+0x6b/0x1a0
[ 10.168851][ T12] cleanup_net+0x431/0x890
[ 10.168975][ T12] ? net_passive_dec+0x1c0/0x1c0
[ 10.169093][ T12] ? process_one_work+0xdb7/0x1410
[ 10.169214][ T12] ? lock_acquire+0x134/0x160
[ 10.169336][ T12] ? rcu_is_watching+0x15/0xd0
[ 10.169464][ T12] process_one_work+0xdf8/0x1410
[ 10.169588][ T12] ? pwq_dec_nr_in_flight+0x710/0x710
[ 10.169707][ T12] ? lock_acquire.part.0+0xbc/0x260
[ 10.169830][ T12] worker_thread+0x4f1/0xd60
[ 10.169960][ T12] ? rescuer_thread+0x1320/0x1320
[ 10.170080][ T12] kthread+0x367/0x460
[ 10.170176][ T12] ? trace_irq_enable.constprop.0+0x9b/0x180
[ 10.170329][ T12] ? kthread_affine_node+0x330/0x330
[ 10.170459][ T12] ret_from_fork+0x474/0x6b0
[ 10.170581][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 10.170730][ T12] ? __switch_to+0x5a3/0xe00
[ 10.170851][ T12] ? kthread_affine_node+0x330/0x330
[ 10.170980][ T12] ret_from_fork_asm+0x11/0x20
[ 10.171107][ T12]
[ 10.171197][ T12] irq event stamp: 2955
[ 10.171291][ T12] hardirqs last enabled at (2963): [] __up_console_sem+0x5a/0x70
[ 10.171510][ T12] hardirqs last disabled at (2974): [] __up_console_sem+0x3f/0x70
[ 10.171716][ T12] softirqs last enabled at (2488): [] __alloc_skb+0x4c5/0x5f0
[ 10.171925][ T12] softirqs last disabled at (2486): [] __alloc_skb+0x4c5/0x5f0
[ 10.172134][ T12] ---[ end trace 0000000000000000 ]---