[ 15.786586][ T283] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 16.403382][ T292] br0: port 1(c1) entered blocking state [ 16.403863][ T292] br0: port 1(c1) entered disabled state [ 16.404227][ T292] c1: entered allmulticast mode [ 16.406634][ T292] c1: entered promiscuous mode [ 16.912887][ T297] br0: port 2(c2) entered blocking state [ 16.913170][ T297] br0: port 2(c2) entered disabled state [ 16.913456][ T297] c2: entered allmulticast mode [ 16.916184][ T297] c2: entered promiscuous mode [ 17.450184][ T302] br0: port 3(c3) entered blocking state [ 17.450545][ T302] br0: port 3(c3) entered disabled state [ 17.450791][ T302] c3: entered allmulticast mode [ 17.453899][ T302] c3: entered promiscuous mode [ 17.981843][ T307] br0: port 4(sender) entered blocking state [ 17.983841][ T307] br0: port 4(sender) entered disabled state [ 17.984281][ T307] sender: entered allmulticast mode [ 17.987135][ T307] sender: entered promiscuous mode [ 18.189327][ T309] br0: port 4(sender) entered blocking state [ 18.189979][ T309] br0: port 4(sender) entered forwarding state [ 18.190765][ T309] br0: port 3(c3) entered blocking state [ 18.191029][ T309] br0: port 3(c3) entered forwarding state [ 18.191566][ T309] br0: port 2(c2) entered blocking state [ 18.191821][ T309] br0: port 2(c2) entered forwarding state [ 18.192282][ T309] br0: port 1(c1) entered blocking state [ 18.192537][ T309] br0: port 1(c1) entered forwarding state [ 18.327795][ T310] Bridge firewalling registered [ 31.436986][ T66] br0: port 1(c1) entered disabled state [ 31.545017][ T66] c1 (unregistering): left allmulticast mode [ 31.545417][ T66] c1 (unregistering): left promiscuous mode [ 31.545649][ T66] br0: port 1(c1) entered disabled state [ 31.547223][ T66] [ 31.547328][ T66] ============================================ [ 31.547537][ T66] WARNING: possible recursive locking detected [ 31.547741][ T66] 6.13.0-rc5-virtme #1 Not tainted [ 31.547901][ T66] -------------------------------------------- [ 31.548102][ T66] kworker/u16:1/66 is trying to acquire lock: [ 31.548303][ T66] ffffffff8c9dfc30 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 31.548636][ T66] [ 31.548636][ T66] but task is already holding lock: [ 31.548876][ T66] ffffffff8c9dfc30 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 31.549201][ T66] [ 31.549201][ T66] other info that might help us debug this: [ 31.549434][ T66] Possible unsafe locking scenario: [ 31.549434][ T66] [ 31.549664][ T66] CPU0 [ 31.549785][ T66] ---- [ 31.549908][ T66] lock((netdev_chain).rwsem); [ 31.550073][ T66] lock((netdev_chain).rwsem); [ 31.550235][ T66] [ 31.550235][ T66] *** DEADLOCK *** [ 31.550235][ T66] [ 31.550473][ T66] May be due to missing lock nesting notation [ 31.550473][ T66] [ 31.550709][ T66] 5 locks held by kworker/u16:1/66: [ 31.550869][ T66] #0: ffff8880010ad948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0 [ 31.551198][ T66] #1: ffffc90000477da0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0 [ 31.551493][ T66] #2: ffffffff8c9d5690 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbc/0xa50 [ 31.551779][ T66] #3: ffffffff8c9f1088 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch+0x81/0x2e0 [ 31.552115][ T66] #4: ffffffff8c9dfc30 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 31.552439][ T66] [ 31.552439][ T66] stack backtrace: [ 31.552641][ T66] CPU: 3 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.13.0-rc5-virtme #1 [ 31.552922][ T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 31.553124][ T66] Workqueue: netns cleanup_net [ 31.553332][ T66] Call Trace: [ 31.553460][ T66] [ 31.553547][ T66] dump_stack_lvl+0x82/0xd0 [ 31.553714][ T66] print_deadlock_bug+0x40a/0x650 [ 31.553881][ T66] validate_chain+0x5bf/0xae0 [ 31.554048][ T66] ? __pfx_validate_chain+0x10/0x10 [ 31.554212][ T66] ? hlock_class+0x4e/0x130 [ 31.554373][ T66] ? mark_lock+0x38/0x3e0 [ 31.554498][ T66] __lock_acquire+0xb9a/0x1680 [ 31.554676][ T66] lock_acquire.part.0+0xeb/0x330 [ 31.554835][ T66] ? blocking_notifier_call_chain+0x50/0x90 [ 31.555032][ T66] ? find_held_lock+0x2c/0x110 [ 31.555197][ T66] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 31.555366][ T66] ? trace_lock_acquire+0x14c/0x1f0 [ 31.555528][ T66] ? lock_acquire+0x32/0xc0 [ 31.555689][ T66] ? blocking_notifier_call_chain+0x50/0x90 [ 31.555896][ T66] down_read+0x9f/0x340 [ 31.556020][ T66] ? blocking_notifier_call_chain+0x50/0x90 [ 31.556222][ T66] ? __pfx_down_read+0x10/0x10 [ 31.556389][ T66] ? lockdep_hardirqs_on_prepare+0x12b/0x410 [ 31.556597][ T66] blocking_notifier_call_chain+0x50/0x90 [ 31.556761][ T66] __netdev_upper_dev_unlink+0xd9/0x220 [ 31.556926][ T66] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 31.557127][ T66] ? find_held_lock+0x2c/0x110 [ 31.557290][ T66] ? del_nbp+0x377/0xbe0 [bridge] [ 31.557504][ T66] ? hlock_class+0x4e/0x130 [ 31.557683][ T66] netdev_upper_dev_unlink+0x71/0xa0 [ 31.557858][ T66] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 31.558057][ T66] ? mutex_spin_on_owner+0x282/0x2b0 [ 31.558216][ T66] ? rtnl_is_locked+0x15/0x20 [ 31.558380][ T66] del_nbp+0x602/0xbe0 [bridge] [ 31.558582][ T66] br_del_if+0xa3/0x1f0 [bridge] [ 31.558780][ T66] br_device_event+0x53d/0x800 [bridge] [ 31.558975][ T66] ? __pfx_br_device_event+0x10/0x10 [bridge] [ 31.559212][ T66] ? netconsole_netdev_event+0x2c1/0x620 [ 31.559382][ T66] ? packet_notifier+0x3b0/0x810 [ 31.559547][ T66] notifier_call_chain+0xcd/0x150 [ 31.559733][ T66] blocking_notifier_call_chain+0x66/0x90 [ 31.559898][ T66] unregister_netdevice_many_notify+0xa7b/0x1580 [ 31.560104][ T66] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 31.560305][ T66] ? default_device_exit_batch+0x81/0x2e0 [ 31.560472][ T66] ? rtnl_is_locked+0x15/0x20 [ 31.560635][ T66] ? unregister_netdevice_queue+0x70/0x410 [ 31.560833][ T66] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 31.561032][ T66] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 31.561235][ T66] default_device_exit_batch+0x241/0x2e0 [ 31.561396][ T66] ? __pfx_default_device_exit_batch+0x10/0x10 [ 31.561601][ T66] ? mutex_is_locked+0x1c/0x60 [ 31.561764][ T66] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 31.561966][ T66] cleanup_net+0x4ef/0xa50 [ 31.562125][ T66] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 31.562285][ T66] ? __pfx_cleanup_net+0x10/0x10 [ 31.562445][ T66] ? trace_lock_acquire+0x14c/0x1f0 [ 31.562606][ T66] ? lock_acquire+0x32/0xc0 [ 31.562778][ T66] ? process_one_work+0xe0b/0x16d0 [ 31.562952][ T66] process_one_work+0xe55/0x16d0 [ 31.563117][ T66] ? __pfx___lock_release+0x10/0x10 [ 31.563279][ T66] ? __pfx_process_one_work+0x10/0x10 [ 31.563444][ T66] ? assign_work+0x16c/0x240 [ 31.563608][ T66] worker_thread+0x58c/0xce0 [ 31.563769][ T66] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 31.563971][ T66] ? __pfx_worker_thread+0x10/0x10 [ 31.564136][ T66] ? __pfx_worker_thread+0x10/0x10 [ 31.564296][ T66] kthread+0x28a/0x350 [ 31.564423][ T66] ? __pfx_kthread+0x10/0x10 [ 31.564596][ T66] ret_from_fork+0x31/0x70 [ 31.564759][ T66] ? __pfx_kthread+0x10/0x10 [ 31.564919][ T66] ret_from_fork_asm+0x1a/0x30 [ 31.565084][ T66] [ 31.786082][ T66] br0: port 2(c2) entered disabled state [ 31.874693][ T66] c2 (unregistering): left allmulticast mode [ 31.874919][ T66] c2 (unregistering): left promiscuous mode [ 31.875104][ T66] br0: port 2(c2) entered disabled state [ 32.067799][ T66] br0: port 3(c3) entered disabled state [ 32.200772][ T66] c3 (unregistering): left allmulticast mode [ 32.200984][ T66] c3 (unregistering): left promiscuous mode [ 32.201161][ T66] br0: port 3(c3) entered disabled state [ 32.352929][ T66] br0: port 4(sender) entered disabled state [ 32.443470][ T66] sender (unregistering): left allmulticast mode [ 32.443696][ T66] sender (unregistering): left promiscuous mode [ 32.443876][ T66] br0: port 4(sender) entered disabled state