[ 34.214939][ T343] xdummy0: entered promiscuous mode
[ 34.230948][ C2] BUG: spinlock bad magic on CPU#2, tap/343
[ 34.231188][ C2] lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: tap/343, .owner_cpu: 2
[ 34.231464][ C2] CPU: 2 UID: 0 PID: 343 Comm: tap Not tainted 6.10.0-virtme #1
[ 34.231686][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 34.232007][ C2] Call Trace:
[ 34.232121][ C2]
[ 34.232197][ C2] dump_stack_lvl+0xb0/0xd0
[ 34.232352][ C2] do_raw_spin_unlock+0x1ac/0x220
[ 34.232500][ C2] _raw_spin_unlock+0x23/0x40
[ 34.232647][ C2] net_tx_action+0x424/0x680
[ 34.232794][ C2] handle_softirqs+0x1f9/0x5c0
[ 34.232949][ C2] ? dev_deactivate_many+0x1e2/0x8d0
[ 34.233099][ C2] do_softirq+0x4d/0xa0
[ 34.233207][ C2]
[ 34.233281][ C2]
[ 34.233362][ C2] __local_bh_enable_ip+0xf6/0x120
[ 34.233507][ C2] dev_deactivate_many+0x1e7/0x8d0
[ 34.233654][ C2] __dev_close_many+0x12b/0x2d0
[ 34.233799][ C2] ? __pfx___dev_close_many+0x10/0x10
[ 34.233941][ C2] ? __pfx___netdev_update_lower_level+0x10/0x10
[ 34.234119][ C2] ? __pfx___netdev_walk_all_upper_dev+0x10/0x10
[ 34.234307][ C2] dev_close_many+0x202/0x650
[ 34.234450][ C2] ? __pfx_br_device_event+0x10/0x10
[ 34.234595][ C2] ? __pfx_dev_close_many+0x10/0x10
[ 34.234740][ C2] ? packet_notifier+0x3a3/0x7b0
[ 34.234890][ C2] ? ip6_route_dev_notify+0x3b/0x670
[ 34.235036][ C2] unregister_netdevice_many_notify+0x8e5/0x1570
[ 34.235221][ C2] ? __netdev_upper_dev_unlink+0x17c/0x220
[ 34.235399][ C2] ? __pfx___netdev_upper_dev_unlink+0x10/0x10
[ 34.235576][ C2] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 34.235757][ C2] ? rtnl_is_locked+0x15/0x20
[ 34.235912][ C2] ? unregister_netdevice_queue+0x70/0x410
[ 34.236092][ C2] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 34.236273][ C2] ? mutex_is_locked+0x17/0x50
[ 34.236418][ C2] ? netdev_upper_dev_unlink+0x71/0xa0
[ 34.236563][ C2] ? __pfx_netdev_upper_dev_unlink+0x10/0x10
[ 34.236746][ C2] rtnl_dellink+0x32c/0xa50
[ 34.236891][ C2] ? hlock_class+0x4e/0x130
[ 34.237046][ C2] ? __pfx_rtnl_dellink+0x10/0x10
[ 34.237214][ C2] ? trace_contention_end+0xeb/0x150
[ 34.237366][ C2] ? __mutex_lock+0x170/0xac0
[ 34.237512][ C2] ? find_held_lock+0x2c/0x110
[ 34.237657][ C2] ? __pfx___mutex_lock+0x10/0x10
[ 34.237805][ C2] ? __pfx___lock_release+0x10/0x10
[ 34.237948][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 34.238098][ C2] ? trace_lock_acquire+0x14d/0x1f0
[ 34.238248][ C2] rtnetlink_rcv_msg+0x2fb/0xc10
[ 34.238393][ C2] ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[ 34.238536][ C2] ? hlock_class+0x4e/0x130
[ 34.238688][ C2] ? mark_lock+0x38/0x3e0
[ 34.238797][ C2] ? __lock_acquire+0xb35/0x1560
[ 34.238941][ C2] netlink_rcv_skb+0x130/0x360
[ 34.239089][ C2] ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[ 34.239236][ C2] ? __pfx_netlink_rcv_skb+0x10/0x10
[ 34.239382][ C2] ? netlink_deliver_tap+0x13e/0x340
[ 34.239528][ C2] ? netlink_deliver_tap+0xc3/0x340
[ 34.239670][ C2] netlink_unicast+0x44b/0x710
[ 34.239813][ C2] ? __pfx_netlink_unicast+0x10/0x10
[ 34.239954][ C2] ? netlink_autobind.isra.0+0xa5/0x270
[ 34.240095][ C2] ? netlink_autobind.isra.0+0x18a/0x270
[ 34.240239][ C2] netlink_sendmsg+0x723/0xbe0
[ 34.240384][ C2] ? __pfx_netlink_sendmsg+0x10/0x10
[ 34.240529][ C2] ? __fget_light+0x53/0x1e0
[ 34.240676][ C2] __sys_sendto+0x37d/0x410
[ 34.240821][ C2] ? __pfx___sys_sendto+0x10/0x10
[ 34.240965][ C2] ? __lock_release+0x103/0x460
[ 34.241110][ C2] ? __pfx___lock_release+0x10/0x10
[ 34.241252][ C2] ? fd_install+0x1d1/0x5a0
[ 34.241393][ C2] ? fd_install+0x1d6/0x5a0
[ 34.241542][ C2] ? __sys_socket+0x168/0x1e0
[ 34.241690][ C2] ? __pfx___sys_socket+0x10/0x10
[ 34.241836][ C2] __x64_sys_sendto+0xe0/0x1c0
[ 34.241981][ C2] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 34.242161][ C2] do_syscall_64+0xc1/0x1d0
[ 34.242310][ C2] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 34.242489][ C2] RIP: 0033:0x7f32ab40c700
[ 34.242638][ C2] Code: ff ff 64 89 02 eb bd 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 1d 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 68 c3 0f 1f 80 00 00 00 00 41 54 48 83 ec 20
[ 34.243142][ C2] RSP: 002b:00007ffc973521e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 34.243362][ C2] RAX: ffffffffffffffda RBX: 0000000000000030 RCX: 00007f32ab40c700
[ 34.243578][ C2] RDX: 0000000000000030 RSI: 00007ffc973521f0 RDI: 0000000000000005
[ 34.243795][ C2] RBP: 00000000004047b0 R08: 0000000000000000 R09: 0000000000000000
[ 34.244009][ C2] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005
[ 34.244222][ C2] R13: 00007ffc973521f0 R14: 00007f32ab2b9000 R15: 0000000000407180
[ 34.244439][ C2]
[ 34.244642][ T343] xdummy0: left promiscuous mode
[ 34.330644][ T347] xdummy0: entered promiscuous mode
[ 34.340682][ T347] xdummy0: left promiscuous mode
[ 34.418529][ T351] xdummy0: entered promiscuous mode
[ 34.429699][ T351] xdummy0: left promiscuous mode