[ 15.504686][ T281] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 15.841981][ T286] ip (286) used greatest stack depth: 24248 bytes left [ 16.119919][ T291] br0: port 1(c1) entered blocking state [ 16.120318][ T291] br0: port 1(c1) entered disabled state [ 16.120640][ T291] c1: entered allmulticast mode [ 16.122653][ T291] c1: entered promiscuous mode [ 16.597011][ T296] br0: port 2(c2) entered blocking state [ 16.597244][ T296] br0: port 2(c2) entered disabled state [ 16.597484][ T296] c2: entered allmulticast mode [ 16.599421][ T296] c2: entered promiscuous mode [ 17.086212][ T301] br0: port 3(c3) entered blocking state [ 17.086781][ T301] br0: port 3(c3) entered disabled state [ 17.087040][ T301] c3: entered allmulticast mode [ 17.088972][ T301] c3: entered promiscuous mode [ 17.563439][ T306] br0: port 4(sender) entered blocking state [ 17.563723][ T306] br0: port 4(sender) entered disabled state [ 17.563987][ T306] sender: entered allmulticast mode [ 17.566264][ T306] sender: entered promiscuous mode [ 17.748678][ T308] br0: port 4(sender) entered blocking state [ 17.749128][ T308] br0: port 4(sender) entered forwarding state [ 17.749814][ T308] br0: port 3(c3) entered blocking state [ 17.750047][ T308] br0: port 3(c3) entered forwarding state [ 17.750482][ T308] br0: port 2(c2) entered blocking state [ 17.750697][ T308] br0: port 2(c2) entered forwarding state [ 17.751108][ T308] br0: port 1(c1) entered blocking state [ 17.751325][ T308] br0: port 1(c1) entered forwarding state [ 17.877886][ T309] Bridge firewalling registered [ 30.822820][ T11] br0: port 1(c1) entered disabled state [ 30.945109][ T11] c1 (unregistering): left allmulticast mode [ 30.945519][ T11] c1 (unregistering): left promiscuous mode [ 30.945765][ T11] br0: port 1(c1) entered disabled state [ 30.947173][ T11] [ 30.947268][ T11] ============================================ [ 30.947461][ T11] WARNING: possible recursive locking detected [ 30.947652][ T11] 6.13.0-rc5-virtme #1 Not tainted [ 30.947806][ T11] -------------------------------------------- [ 30.947990][ T11] kworker/u16:0/11 is trying to acquire lock: [ 30.948175][ T11] ffffffffb99dfc30 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 30.948487][ T11] [ 30.948487][ T11] but task is already holding lock: [ 30.948704][ T11] ffffffffb99dfc30 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 30.948999][ T11] [ 30.948999][ T11] other info that might help us debug this: [ 30.949219][ T11] Possible unsafe locking scenario: [ 30.949219][ T11] [ 30.949436][ T11] CPU0 [ 30.949550][ T11] ---- [ 30.949663][ T11] lock((netdev_chain).rwsem); [ 30.949813][ T11] lock((netdev_chain).rwsem); [ 30.949971][ T11] [ 30.949971][ T11] *** DEADLOCK *** [ 30.949971][ T11] [ 30.950216][ T11] May be due to missing lock nesting notation [ 30.950216][ T11] [ 30.950447][ T11] 5 locks held by kworker/u16:0/11: [ 30.950605][ T11] #0: ffff8880010ad948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0 [ 30.950940][ T11] #1: ffffc900000b7da0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0 [ 30.951234][ T11] #2: ffffffffb99d5690 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbc/0xa50 [ 30.951552][ T11] #3: ffffffffb99f1088 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch+0x81/0x2e0 [ 30.951886][ T11] #4: ffffffffb99dfc30 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 30.952221][ T11] [ 30.952221][ T11] stack backtrace: [ 30.952420][ T11] CPU: 3 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.13.0-rc5-virtme #1 [ 30.952709][ T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.952908][ T11] Workqueue: netns cleanup_net [ 30.953082][ T11] Call Trace: [ 30.953220][ T11] [ 30.953309][ T11] dump_stack_lvl+0x82/0xd0 [ 30.953484][ T11] print_deadlock_bug+0x40a/0x650 [ 30.953647][ T11] validate_chain+0x5bf/0xae0 [ 30.953819][ T11] ? __pfx_validate_chain+0x10/0x10 [ 30.953988][ T11] ? hlock_class+0x4e/0x130 [ 30.954155][ T11] ? mark_lock+0x38/0x3e0 [ 30.954280][ T11] __lock_acquire+0xb9a/0x1680 [ 30.954463][ T11] lock_acquire.part.0+0xeb/0x330 [ 30.954627][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 30.954837][ T11] ? find_held_lock+0x2c/0x110 [ 30.955001][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 30.955168][ T11] ? trace_lock_acquire+0x14c/0x1f0 [ 30.955343][ T11] ? lock_acquire+0x32/0xc0 [ 30.955505][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 30.955712][ T11] down_read+0x9f/0x340 [ 30.955840][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 30.956043][ T11] ? __pfx_down_read+0x10/0x10 [ 30.956213][ T11] ? lockdep_hardirqs_on_prepare+0x12b/0x410 [ 30.956419][ T11] blocking_notifier_call_chain+0x50/0x90 [ 30.956584][ T11] __netdev_upper_dev_unlink+0xd9/0x220 [ 30.956751][ T11] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 30.956967][ T11] ? find_held_lock+0x2c/0x110 [ 30.957133][ T11] ? del_nbp+0x377/0xbe0 [bridge] [ 30.957334][ T11] ? hlock_class+0x4e/0x130 [ 30.957500][ T11] netdev_upper_dev_unlink+0x71/0xa0 [ 30.957664][ T11] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 30.957874][ T11] ? mutex_spin_on_owner+0x282/0x2b0 [ 30.958040][ T11] ? rtnl_is_locked+0x15/0x20 [ 30.958220][ T11] del_nbp+0x602/0xbe0 [bridge] [ 30.958414][ T11] br_del_if+0xa3/0x1f0 [bridge] [ 30.958614][ T11] br_device_event+0x53d/0x800 [bridge] [ 30.958807][ T11] ? __pfx_br_device_event+0x10/0x10 [bridge] [ 30.959035][ T11] ? netconsole_netdev_event+0x2c1/0x620 [ 30.959201][ T11] ? packet_notifier+0x3b0/0x810 [ 30.959370][ T11] notifier_call_chain+0xcd/0x150 [ 30.959562][ T11] blocking_notifier_call_chain+0x66/0x90 [ 30.959729][ T11] unregister_netdevice_many_notify+0xa7b/0x1580 [ 30.959938][ T11] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 30.960144][ T11] ? default_device_exit_batch+0x81/0x2e0 [ 30.960310][ T11] ? rtnl_is_locked+0x15/0x20 [ 30.960475][ T11] ? unregister_netdevice_queue+0x70/0x410 [ 30.960681][ T11] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 30.960917][ T11] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 30.961123][ T11] default_device_exit_batch+0x241/0x2e0 [ 30.961287][ T11] ? __pfx_default_device_exit_batch+0x10/0x10 [ 30.961507][ T11] ? mutex_is_locked+0x1c/0x60 [ 30.961672][ T11] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 30.961896][ T11] cleanup_net+0x4ef/0xa50 [ 30.962068][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 30.962235][ T11] ? __pfx_cleanup_net+0x10/0x10 [ 30.962412][ T11] ? trace_lock_acquire+0x14c/0x1f0 [ 30.962578][ T11] ? lock_acquire+0x32/0xc0 [ 30.962744][ T11] ? process_one_work+0xe0b/0x16d0 [ 30.962921][ T11] process_one_work+0xe55/0x16d0 [ 30.963092][ T11] ? __pfx___lock_release+0x10/0x10 [ 30.963259][ T11] ? __pfx_process_one_work+0x10/0x10 [ 30.963426][ T11] ? assign_work+0x16c/0x240 [ 30.963588][ T11] worker_thread+0x58c/0xce0 [ 30.963754][ T11] ? __pfx_worker_thread+0x10/0x10 [ 30.963915][ T11] kthread+0x28a/0x350 [ 30.964041][ T11] ? __pfx_kthread+0x10/0x10 [ 30.964202][ T11] ret_from_fork+0x31/0x70 [ 30.964365][ T11] ? __pfx_kthread+0x10/0x10 [ 30.964531][ T11] ret_from_fork_asm+0x1a/0x30 [ 30.964699][ T11] [ 31.131508][ T11] br0: port 2(c2) entered disabled state [ 31.213837][ T11] c2 (unregistering): left allmulticast mode [ 31.214086][ T11] c2 (unregistering): left promiscuous mode [ 31.214288][ T11] br0: port 2(c2) entered disabled state [ 31.409583][ T11] br0: port 3(c3) entered disabled state [ 31.505429][ T11] c3 (unregistering): left allmulticast mode [ 31.505673][ T11] c3 (unregistering): left promiscuous mode [ 31.505868][ T11] br0: port 3(c3) entered disabled state [ 31.675280][ T11] br0: port 4(sender) entered disabled state [ 31.755845][ T11] sender (unregistering): left allmulticast mode [ 31.756112][ T11] sender (unregistering): left promiscuous mode [ 31.756292][ T11] br0: port 4(sender) entered disabled state