[   14.580858][  T281] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[   15.163430][  T290] br0: port 1(c1) entered blocking state
[   15.163973][  T290] br0: port 1(c1) entered disabled state
[   15.164443][  T290] c1: entered allmulticast mode
[   15.166676][  T290] c1: entered promiscuous mode
[   15.656558][  T295] br0: port 2(c2) entered blocking state
[   15.656853][  T295] br0: port 2(c2) entered disabled state
[   15.657069][  T295] c2: entered allmulticast mode
[   15.659631][  T295] c2: entered promiscuous mode
[   16.132057][  T300] br0: port 3(c3) entered blocking state
[   16.132380][  T300] br0: port 3(c3) entered disabled state
[   16.132601][  T300] c3: entered allmulticast mode
[   16.135816][  T300] c3: entered promiscuous mode
[   16.615910][  T305] br0: port 4(sender) entered blocking state
[   16.616198][  T305] br0: port 4(sender) entered disabled state
[   16.617662][  T305] sender: entered allmulticast mode
[   16.619549][  T305] sender: entered promiscuous mode
[   16.806933][  T307] br0: port 4(sender) entered blocking state
[   16.807385][  T307] br0: port 4(sender) entered forwarding state
[   16.808035][  T307] br0: port 3(c3) entered blocking state
[   16.808257][  T307] br0: port 3(c3) entered forwarding state
[   16.808691][  T307] br0: port 2(c2) entered blocking state
[   16.808912][  T307] br0: port 2(c2) entered forwarding state
[   16.809327][  T307] br0: port 1(c1) entered blocking state
[   16.809561][  T307] br0: port 1(c1) entered forwarding state
[   16.959861][  T308] Bridge firewalling registered
[   30.023081][   T66] br0: port 1(c1) entered disabled state
[   30.144201][   T66] c1 (unregistering): left allmulticast mode
[   30.144557][   T66] c1 (unregistering): left promiscuous mode
[   30.144855][   T66] br0: port 1(c1) entered disabled state
[   30.145739][   T66] 
[   30.145834][   T66] ============================================
[   30.146033][   T66] WARNING: possible recursive locking detected
[   30.146224][   T66] 6.13.0-rc5-virtme #1 Not tainted
[   30.146379][   T66] --------------------------------------------
[   30.146569][   T66] kworker/u16:1/66 is trying to acquire lock:
[   30.146759][   T66] ffffffffaf9dfc30 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90
[   30.147082][   T66] 
[   30.147082][   T66] but task is already holding lock:
[   30.147311][   T66] ffffffffaf9dfc30 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90
[   30.147625][   T66] 
[   30.147625][   T66] other info that might help us debug this:
[   30.147850][   T66]  Possible unsafe locking scenario:
[   30.147850][   T66] 
[   30.148074][   T66]        CPU0
[   30.148188][   T66]        ----
[   30.148304][   T66]   lock((netdev_chain).rwsem);
[   30.148464][   T66]   lock((netdev_chain).rwsem);
[   30.148618][   T66] 
[   30.148618][   T66]  *** DEADLOCK ***
[   30.148618][   T66] 
[   30.148846][   T66]  May be due to missing lock nesting notation
[   30.148846][   T66] 
[   30.149070][   T66] 5 locks held by kworker/u16:1/66:
[   30.149226][   T66]  #0: ffff8880010ad948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0
[   30.149566][   T66]  #1: ffffc90000477da0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0
[   30.149837][   T66]  #2: ffffffffaf9d5690 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbc/0xa50
[   30.150123][   T66]  #3: ffffffffaf9f1088 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch+0x81/0x2e0
[   30.150433][   T66]  #4: ffffffffaf9dfc30 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90
[   30.150751][   T66] 
[   30.150751][   T66] stack backtrace:
[   30.150937][   T66] CPU: 1 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.13.0-rc5-virtme #1
[   30.151206][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.151401][   T66] Workqueue: netns cleanup_net
[   30.151560][   T66] Call Trace:
[   30.151683][   T66]  <TASK>
[   30.151763][   T66]  dump_stack_lvl+0x82/0xd0
[   30.151929][   T66]  print_deadlock_bug+0x40a/0x650
[   30.152085][   T66]  validate_chain+0x5bf/0xae0
[   30.152240][   T66]  ? __pfx_validate_chain+0x10/0x10
[   30.152396][   T66]  ? hlock_class+0x4e/0x130
[   30.152550][   T66]  ? mark_lock+0x38/0x3e0
[   30.152669][   T66]  __lock_acquire+0xb9a/0x1680
[   30.152830][   T66]  lock_acquire.part.0+0xeb/0x330
[   30.152982][   T66]  ? blocking_notifier_call_chain+0x50/0x90
[   30.153171][   T66]  ? __pfx_lock_acquire.part.0+0x10/0x10
[   30.153327][   T66]  ? trace_lock_acquire+0x14c/0x1f0
[   30.153484][   T66]  ? lock_acquire+0x32/0xc0
[   30.153638][   T66]  ? blocking_notifier_call_chain+0x50/0x90
[   30.153828][   T66]  down_read+0x9f/0x340
[   30.153952][   T66]  ? blocking_notifier_call_chain+0x50/0x90
[   30.154143][   T66]  ? __pfx_down_read+0x10/0x10
[   30.154304][   T66]  ? __pfx___lock_release+0x10/0x10
[   30.154459][   T66]  blocking_notifier_call_chain+0x50/0x90
[   30.154614][   T66]  __netdev_upper_dev_unlink+0xd9/0x220
[   30.154767][   T66]  ? __pfx___netdev_upper_dev_unlink+0x10/0x10
[   30.154956][   T66]  ? find_held_lock+0x2c/0x110
[   30.155115][   T66]  ? del_nbp+0x377/0xbe0 [bridge]
[   30.155305][   T66]  ? hlock_class+0x4e/0x130
[   30.155461][   T66]  netdev_upper_dev_unlink+0x71/0xa0
[   30.155615][   T66]  ? __pfx_netdev_upper_dev_unlink+0x10/0x10
[   30.155808][   T66]  ? mutex_spin_on_owner+0x282/0x2b0
[   30.155963][   T66]  ? rtnl_is_locked+0x15/0x20
[   30.156127][   T66]  del_nbp+0x602/0xbe0 [bridge]
[   30.156315][   T66]  br_del_if+0xa3/0x1f0 [bridge]
[   30.156501][   T66]  br_device_event+0x53d/0x800 [bridge]
[   30.156683][   T66]  ? __pfx_br_device_event+0x10/0x10 [bridge]
[   30.156899][   T66]  ? netconsole_netdev_event+0x2c1/0x620
[   30.157056][   T66]  ? packet_notifier+0x3b0/0x810
[   30.157213][   T66]  notifier_call_chain+0xcd/0x150
[   30.157367][   T66]  blocking_notifier_call_chain+0x66/0x90
[   30.157527][   T66]  unregister_netdevice_many_notify+0xa7b/0x1580
[   30.157720][   T66]  ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[   30.157913][   T66]  ? default_device_exit_batch+0x81/0x2e0
[   30.158067][   T66]  ? rtnl_is_locked+0x15/0x20
[   30.158219][   T66]  ? unregister_netdevice_queue+0x70/0x410
[   30.158409][   T66]  ? __pfx_unregister_netdevice_queue+0x10/0x10
[   30.158601][   T66]  ? __pfx_unregister_netdevice_queue+0x10/0x10
[   30.158797][   T66]  default_device_exit_batch+0x241/0x2e0
[   30.158949][   T66]  ? __pfx_default_device_exit_batch+0x10/0x10
[   30.159144][   T66]  ? mutex_is_locked+0x1c/0x60
[   30.159307][   T66]  ? nexthop_net_exit_batch_rtnl+0x83/0x210
[   30.159503][   T66]  cleanup_net+0x4ef/0xa50
[   30.159657][   T66]  ? __pfx_lock_acquire.part.0+0x10/0x10
[   30.159815][   T66]  ? __pfx_cleanup_net+0x10/0x10
[   30.159966][   T66]  ? trace_lock_acquire+0x14c/0x1f0
[   30.160129][   T66]  ? lock_acquire+0x32/0xc0
[   30.160284][   T66]  ? process_one_work+0xe0b/0x16d0
[   30.160440][   T66]  process_one_work+0xe55/0x16d0
[   30.160597][   T66]  ? __pfx___lock_release+0x10/0x10
[   30.160751][   T66]  ? __pfx_process_one_work+0x10/0x10
[   30.160914][   T66]  ? assign_work+0x16c/0x240
[   30.161068][   T66]  worker_thread+0x58c/0xce0
[   30.161222][   T66]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   30.161414][   T66]  ? __pfx_worker_thread+0x10/0x10
[   30.161570][   T66]  ? __pfx_worker_thread+0x10/0x10
[   30.161724][   T66]  kthread+0x28a/0x350
[   30.161840][   T66]  ? __pfx_kthread+0x10/0x10
[   30.161995][   T66]  ret_from_fork+0x31/0x70
[   30.162155][   T66]  ? __pfx_kthread+0x10/0x10
[   30.162309][   T66]  ret_from_fork_asm+0x1a/0x30
[   30.162470][   T66]  </TASK>
[   30.355635][   T66] br0: port 2(c2) entered disabled state
[   30.452000][   T66] c2 (unregistering): left allmulticast mode
[   30.452270][   T66] c2 (unregistering): left promiscuous mode
[   30.452468][   T66] br0: port 2(c2) entered disabled state
[   30.632489][   T66] br0: port 3(c3) entered disabled state
[   30.722894][   T66] c3 (unregistering): left allmulticast mode
[   30.723109][   T66] c3 (unregistering): left promiscuous mode
[   30.723291][   T66] br0: port 3(c3) entered disabled state
[   30.901172][   T66] br0: port 4(sender) entered disabled state
[   30.989894][   T66] sender (unregistering): left allmulticast mode
[   30.990118][   T66] sender (unregistering): left promiscuous mode
[   30.990308][   T66] br0: port 4(sender) entered disabled state