[ 36.099171][ T292] br0: port 1(gw_l) entered blocking state
[ 36.099604][ T292] br0: port 1(gw_l) entered disabled state
[ 36.099867][ T292] gw_l: entered allmulticast mode
[ 36.101208][ T292] gw_l: entered promiscuous mode
[ 36.102704][ T292] br0: port 1(gw_l) entered blocking state
[ 36.103099][ T292] br0: port 1(gw_l) entered forwarding state
[ 36.939017][ T294] br0: port 2(amtg) entered blocking state
[ 36.939332][ T294] br0: port 2(amtg) entered disabled state
[ 36.939805][ T294] amtg: entered allmulticast mode
[ 36.941181][ T294] amtg: entered promiscuous mode
[ 40.160694][ T306] br0: port 2(amtg) entered blocking state
[ 40.160981][ T306] br0: port 2(amtg) entered forwarding state
[ 42.137268][ T316] amtr: entered allmulticast mode
[ 42.137758][ T316] relay_gw: entered allmulticast mode
[ 42.138037][ T316] relay_src: entered allmulticast mode
[ 1333.473871][ C3] BUG: spinlock bad magic on CPU#3, kworker/u16:1/76
[ 1333.474122][ C3] lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: kworker/u16:1/76, .owner_cpu: 3
[ 1333.474522][ C3] CPU: 3 UID: 0 PID: 76 Comm: kworker/u16:1 Not tainted 6.10.0-virtme #1
[ 1333.474774][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1333.475140][ C3] Workqueue: netns cleanup_net
[ 1333.475313][ C3] Call Trace:
[ 1333.475444][ C3]
[ 1333.475556][ C3] dump_stack_lvl+0xb0/0xd0
[ 1333.475736][ C3] do_raw_spin_unlock+0x1ac/0x220
[ 1333.475926][ C3] _raw_spin_unlock+0x23/0x40
[ 1333.476093][ C3] net_tx_action+0x424/0x680
[ 1333.476264][ C3] handle_softirqs+0x1f9/0x5c0
[ 1333.476432][ C3] ? dev_deactivate_many+0x1e2/0x8d0
[ 1333.476609][ C3] do_softirq+0x4d/0xa0
[ 1333.476732][ C3]
[ 1333.476838][ C3]
[ 1333.476924][ C3] __local_bh_enable_ip+0xf6/0x120
[ 1333.477097][ C3] dev_deactivate_many+0x1e7/0x8d0
[ 1333.477265][ C3] __dev_close_many+0x12b/0x2d0
[ 1333.477429][ C3] ? __pfx___dev_close_many+0x10/0x10
[ 1333.477609][ C3] ? __lock_acquire+0xa70/0x1560
[ 1333.477773][ C3] dev_close_many+0x202/0x650
[ 1333.477951][ C3] ? lock_acquire.part.0+0xeb/0x330
[ 1333.478111][ C3] ? default_device_exit_batch+0x81/0x2d0
[ 1333.478288][ C3] ? __pfx_dev_close_many+0x10/0x10
[ 1333.478460][ C3] ? fou_exit_net+0x2f/0xf0
[ 1333.478628][ C3] ? __mutex_trylock_common+0xfa/0x260
[ 1333.478774][ C3] unregister_netdevice_many_notify+0x8e5/0x1570
[ 1333.478940][ C3] ? lock_acquire+0x32/0xc0
[ 1333.479076][ C3] ? trace_contention_end+0xeb/0x150
[ 1333.479208][ C3] ? __mutex_lock+0x170/0xac0
[ 1333.479352][ C3] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 1333.479523][ C3] ? __mutex_lock+0x170/0xac0
[ 1333.479655][ C3] ? find_held_lock+0x2c/0x110
[ 1333.479802][ C3] ? mutex_is_locked+0x17/0x50
[ 1333.480016][ C3] ? rtnl_is_locked+0x15/0x20
[ 1333.480149][ C3] ? unregister_netdevice_queue+0x70/0x410
[ 1333.480321][ C3] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1333.480484][ C3] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 1333.480652][ C3] default_device_exit_batch+0x234/0x2d0
[ 1333.480790][ C3] ? __pfx_default_device_exit_batch+0x10/0x10
[ 1333.481043][ C3] ? ops_exit_list+0xb4/0x170
[ 1333.481202][ C3] cleanup_net+0x4ef/0xb10
[ 1333.481354][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1333.481505][ C3] ? __pfx_cleanup_net+0x10/0x10
[ 1333.481653][ C3] ? trace_lock_acquire+0x14d/0x1f0
[ 1333.481869][ C3] ? process_one_work+0xdf1/0x1670
[ 1333.482095][ C3] ? lock_acquire+0x32/0xc0
[ 1333.482257][ C3] ? process_one_work+0xdf1/0x1670
[ 1333.482407][ C3] process_one_work+0xe3b/0x1670
[ 1333.482557][ C3] ? __pfx___lock_release+0x10/0x10
[ 1333.482701][ C3] ? __pfx_process_one_work+0x10/0x10
[ 1333.482849][ C3] ? assign_work+0x16c/0x240
[ 1333.483085][ C3] worker_thread+0x587/0xce0
[ 1333.483239][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1333.483432][ C3] ? __pfx_worker_thread+0x10/0x10
[ 1333.483577][ C3] ? __pfx_worker_thread+0x10/0x10
[ 1333.483799][ C3] kthread+0x28a/0x350
[ 1333.483915][ C3] ? __pfx_kthread+0x10/0x10
[ 1333.484134][ C3] ret_from_fork+0x31/0x70
[ 1333.484281][ C3] ? __pfx_kthread+0x10/0x10
[ 1333.484431][ C3] ret_from_fork_asm+0x1a/0x30
[ 1333.484602][ C3]
[ 1333.488882][ T76] br0: port 1(gw_l) entered disabled state
[ 1333.559813][ T76] gw_l (unregistering): left allmulticast mode
[ 1333.560059][ T76] gw_l (unregistering): left promiscuous mode
[ 1333.560252][ T76] br0: port 1(gw_l) entered disabled state
[ 1333.603859][ T76] amtg: left allmulticast mode
[ 1333.604057][ T76] amtg: left promiscuous mode
[ 1333.604350][ T76] br0: port 2(amtg) entered disabled state
[ 1333.852611][ T76] relay_gw (unregistering): left allmulticast mode
[ 1333.886620][ T76] amtr (unregistering): left allmulticast mode
[ 1333.908828][ T316] relay_src: left allmulticast mode