[ 149.414698][ T925] br0: port 1(veth1) entered blocking state
[ 149.415020][ T925] br0: port 1(veth1) entered disabled state
[ 149.415541][ T925] veth1: entered allmulticast mode
[ 149.418016][ T925] veth1: entered promiscuous mode
[ 149.541401][ T927] br0: port 2(veth2) entered blocking state
[ 149.541760][ T927] br0: port 2(veth2) entered disabled state
[ 149.542817][ T927] veth2: entered allmulticast mode
[ 149.544791][ T927] veth2: entered promiscuous mode
[ 149.732211][ T70] br0: port 1(veth1) entered blocking state
[ 149.732523][ T70] br0: port 1(veth1) entered forwarding state
[ 149.733737][ C3]
[ 149.734002][ C3] =============================
[ 149.734253][ C3] WARNING: suspicious RCU usage
[ 149.734483][ C3] 6.14.0-rc6-virtme #1 Not tainted
[ 149.734703][ C3] -----------------------------
[ 149.734904][ C3] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[ 149.735256][ C3]
[ 149.735256][ C3] other info that might help us debug this:
[ 149.735256][ C3]
[ 149.735648][ C3]
[ 149.735648][ C3] rcu_scheduler_active = 2, debug_locks = 1
[ 149.735947][ C3] 6 locks held by kworker/u19:2/70:
[ 149.736162][ C3] #0: ffff8880010a9d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0
[ 149.736597][ C3] #1: ffffc900004b7d40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0
[ 149.737003][ C3] #2: ffffffff8a7f0a08 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
[ 149.737372][ C3] #3: ffffc900002a0d78 ((&pmctx->ip4_own_query.timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 149.737783][ C3] #4: ffff88800f493358 (&br->multicast_lock){+.-.}-{3:3}, at: br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 149.738288][ C3] #5: ffffffff89f5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[ 149.738654][ C3]
[ 149.738654][ C3] stack backtrace:
[ 149.738915][ C3] CPU: 3 UID: 0 PID: 70 Comm: kworker/u19:2 Not tainted 6.14.0-rc6-virtme #1
[ 149.738919][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 149.738923][ C3] Workqueue: events_unbound linkwatch_event
[ 149.738931][ C3] Call Trace:
[ 149.738933][ C3]
[ 149.738938][ C3] dump_stack_lvl+0xb0/0xd0
[ 149.738947][ C3] lockdep_rcu_suspicious+0x1ea/0x280
[ 149.738958][ C3] dev_hard_start_xmit+0x2fc/0x3f0
[ 149.738970][ C3] __dev_queue_xmit+0xfaf/0x18d0
[ 149.738981][ C3] ? __build_skb_around+0x23d/0x350
[ 149.738997][ C3] ? __pfx___dev_queue_xmit+0x10/0x10
[ 149.739000][ C3] ? __pfx___alloc_skb+0x10/0x10
[ 149.739003][ C3] ? __pfx___lock_release+0x10/0x10
[ 149.739013][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 149.739020][ C3] ? __pfx___br_multicast_query_handle_vlan+0x10/0x10 [bridge]
[ 149.739073][ C3] br_dev_queue_push_xmit+0x115/0x250 [bridge]
[ 149.739103][ C3] ? hlock_class+0x10/0x130
[ 149.739108][ C3] ? __pfx_br_dev_queue_push_xmit+0x10/0x10 [bridge]
[ 149.739140][ C3] ? br_multicast_count+0x42/0x130 [bridge]
[ 149.739180][ C3] __br_multicast_send_query+0x3b7/0x950 [bridge]
[ 149.739225][ C3] ? __pfx___br_multicast_send_query+0x10/0x10 [bridge]
[ 149.739266][ C3] ? __lock_acquire+0xb9a/0x1680
[ 149.739277][ C3] ? br_multicast_send_query+0x228/0x440 [bridge]
[ 149.739312][ C3] br_multicast_send_query+0x228/0x440 [bridge]
[ 149.739351][ C3] ? __pfx_br_multicast_send_query+0x10/0x10 [bridge]
[ 149.739385][ C3] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 149.739423][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 149.739458][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 149.739465][ C3] ? do_raw_spin_lock+0x131/0x270
[ 149.739470][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 149.739473][ C3] ? lock_acquire+0x32/0xc0
[ 149.739476][ C3] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 149.739517][ C3] ? br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 149.739550][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 149.739584][ C3] br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 149.739621][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 149.739655][ C3] call_timer_fn+0x13b/0x230
[ 149.739658][ C3] ? call_timer_fn+0xe8/0x230
[ 149.739661][ C3] ? call_timer_fn+0xe8/0x230
[ 149.739665][ C3] ? __pfx_call_timer_fn+0x10/0x10
[ 149.739669][ C3] ? hlock_class+0x4e/0x130
[ 149.739678][ C3] ? mark_held_locks+0x9e/0xe0
[ 149.739690][ C3] __run_timers+0x545/0x810
[ 149.739694][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 149.739737][ C3] ? __pfx___run_timers+0x10/0x10
[ 149.739746][ C3] ? do_raw_spin_lock+0x131/0x270
[ 149.739750][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 149.739754][ C3] ? lock_acquire+0x32/0xc0
[ 149.739757][ C3] ? run_timer_softirq+0xe6/0x1c0
[ 149.739768][ C3] run_timer_softirq+0xee/0x1c0
[ 149.739773][ C3] handle_softirqs+0x1f6/0x5c0
[ 149.739784][ C3] ? br_device_event+0x627/0x800 [bridge]
[ 149.739815][ C3] do_softirq+0x4d/0xa0
[ 149.739819][ C3]
[ 149.739820][ C3]
[ 149.739822][ C3] __local_bh_enable_ip+0xf6/0x120
[ 149.739826][ C3] br_device_event+0x627/0x800 [bridge]
[ 149.739857][ C3] ? __pfx_br_device_event+0x10/0x10 [bridge]
[ 149.739889][ C3] ? packet_notifier+0x3b0/0x810
[ 149.739900][ C3] notifier_call_chain+0xcd/0x150
[ 149.739913][ C3] netdev_state_change+0xf5/0x120
[ 149.739917][ C3] ? __pfx_netdev_state_change+0x10/0x10
[ 149.739932][ C3] linkwatch_do_dev+0xd2/0x100
[ 149.739936][ C3] __linkwatch_run_queue+0x1df/0x650
[ 149.739944][ C3] ? __pfx___linkwatch_run_queue+0x10/0x10
[ 149.739950][ C3] ? lock_acquire+0x32/0xc0
[ 149.739960][ C3] linkwatch_event+0x40/0x60
[ 149.739963][ C3] process_one_work+0xe55/0x16d0
[ 149.739976][ C3] ? __pfx___lock_release+0x10/0x10
[ 149.739982][ C3] ? __pfx_process_one_work+0x10/0x10
[ 149.739996][ C3] ? assign_work+0x16c/0x240
[ 149.740006][ C3] worker_thread+0x58c/0xce0
[ 149.740011][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 149.740022][ C3] ? __pfx_worker_thread+0x10/0x10
[ 149.740028][ C3] kthread+0x359/0x5d0
[ 149.740033][ C3] ? __pfx_kthread+0x10/0x10
[ 149.740042][ C3] ? __pfx_kthread+0x10/0x10
[ 149.740048][ C3] ret_from_fork+0x31/0x70
[ 149.740053][ C3] ? __pfx_kthread+0x10/0x10
[ 149.740056][ C3] ret_from_fork_asm+0x1a/0x30
[ 149.740077][ C3]
[ 149.837840][ T46] br0: port 2(veth2) entered blocking state
[ 149.838217][ T46] br0: port 2(veth2) entered forwarding state
[ 208.382200][ T1208] br1: port 1(veth0) entered blocking state
[ 208.382537][ T1208] br1: port 1(veth0) entered disabled state
[ 208.382817][ T1208] veth0: entered allmulticast mode
[ 208.384810][ T1208] veth0: entered promiscuous mode
[ 208.458472][ T1210] br1: port 1(veth0) entered blocking state
[ 208.458837][ T1210] br1: port 1(veth0) entered forwarding state
[ 210.746505][ T1215] veth0: left allmulticast mode
[ 210.746733][ T1215] veth0: left promiscuous mode
[ 210.747119][ T1215] br1: port 1(veth0) entered disabled state
[ 222.977046][ T1331] br0: vlan filtering disabled, automatically disabling multicast vlan snooping
[ 223.512021][ T1343] br0: port 2(veth2) entered disabled state
[ 223.599442][ T1344] br0: port 1(veth1) entered disabled state
[ 223.677441][ T1345] veth2: left allmulticast mode
[ 223.677678][ T1345] veth2: left promiscuous mode
[ 223.677983][ T1345] br0: port 2(veth2) entered disabled state
[ 223.679563][ T1345] veth1: left allmulticast mode
[ 223.679759][ T1345] veth1: left promiscuous mode
[ 223.680249][ T1345] br0: port 1(veth1) entered disabled state