[ 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