[ 20.250833][ T800] ip (800) used greatest stack depth: 24256 bytes left
[ 20.594745][ T809] ip (809) used greatest stack depth: 23344 bytes left
[ 23.074242][ T846] br0: port 1(veth1) entered blocking state
[ 23.074650][ T846] br0: port 1(veth1) entered disabled state
[ 23.075006][ T846] veth1: entered allmulticast mode
[ 23.077092][ T846] veth1: entered promiscuous mode
[ 23.138830][ T848] br0: port 2(veth2) entered blocking state
[ 23.139144][ T848] br0: port 2(veth2) entered disabled state
[ 23.139448][ T848] veth2: entered allmulticast mode
[ 23.155757][ T848] veth2: entered promiscuous mode
[ 23.324104][ T66] br0: port 1(veth1) entered blocking state
[ 23.324494][ T66] br0: port 1(veth1) entered forwarding state
[ 23.325566][ C0]
[ 23.325802][ C0] =============================
[ 23.326012][ C0] WARNING: suspicious RCU usage
[ 23.326240][ C0] 6.14.0-rc6-virtme #1 Not tainted
[ 23.326454][ C0] -----------------------------
[ 23.326689][ C0] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[ 23.327059][ C0]
[ 23.327059][ C0] other info that might help us debug this:
[ 23.327059][ C0]
[ 23.327457][ C0]
[ 23.327457][ C0] rcu_scheduler_active = 2, debug_locks = 1
[ 23.327770][ C0] 6 locks held by kworker/u18:1/66:
[ 23.327979][ C0] #0: ffff8880010a9d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0
[ 23.328415][ C0] #1: ffffc90000477d40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0
[ 23.328820][ C0] #2: ffffffffa09f0a08 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
[ 23.329200][ C0] #3: ffffc90000007d78 ((&pmctx->ip4_own_query.timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 23.329617][ C0] #4: ffff88800d0d3358 (&br->multicast_lock){+.-.}-{3:3}, at: br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 23.330123][ C0] #5: ffffffffa015b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[ 23.330611][ C0]
[ 23.330611][ C0] stack backtrace:
[ 23.330871][ C0] CPU: 0 UID: 0 PID: 66 Comm: kworker/u18:1 Not tainted 6.14.0-rc6-virtme #1
[ 23.330876][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.330881][ C0] Workqueue: events_unbound linkwatch_event
[ 23.330889][ C0] Call Trace:
[ 23.330892][ C0]
[ 23.330894][ C0] dump_stack_lvl+0xb0/0xd0
[ 23.330902][ C0] lockdep_rcu_suspicious+0x1ea/0x280
[ 23.330913][ C0] dev_hard_start_xmit+0x2fc/0x3f0
[ 23.330925][ C0] __dev_queue_xmit+0xfaf/0x18d0
[ 23.330935][ C0] ? __build_skb_around+0x23d/0x350
[ 23.330949][ C0] ? __pfx___dev_queue_xmit+0x10/0x10
[ 23.330952][ C0] ? __pfx___alloc_skb+0x10/0x10
[ 23.330959][ C0] ? stack_trace_save+0x94/0xd0
[ 23.330964][ C0] ? __pfx_stack_trace_save+0x10/0x10
[ 23.330972][ C0] ? __pfx___br_multicast_query_handle_vlan+0x10/0x10 [bridge]
[ 23.331026][ C0] br_dev_queue_push_xmit+0x115/0x250 [bridge]
[ 23.331061][ C0] ? __pfx_br_dev_queue_push_xmit+0x10/0x10 [bridge]
[ 23.331094][ C0] ? br_multicast_count+0x42/0x130 [bridge]
[ 23.331133][ C0] __br_multicast_send_query+0x3b7/0x950 [bridge]
[ 23.331178][ C0] ? __pfx___br_multicast_send_query+0x10/0x10 [bridge]
[ 23.331219][ C0] ? __lock_acquire+0xb9a/0x1680
[ 23.331230][ C0] ? br_multicast_send_query+0x228/0x440 [bridge]
[ 23.331264][ C0] br_multicast_send_query+0x228/0x440 [bridge]
[ 23.331302][ C0] ? __pfx_br_multicast_send_query+0x10/0x10 [bridge]
[ 23.331336][ C0] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 23.331372][ C0] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 23.331406][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 23.331413][ C0] ? do_raw_spin_lock+0x131/0x270
[ 23.331417][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 23.331421][ C0] ? lock_acquire+0x32/0xc0
[ 23.331424][ C0] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 23.331464][ C0] ? br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 23.331496][ C0] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 23.331529][ C0] br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 23.331565][ C0] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 23.331599][ C0] call_timer_fn+0x13b/0x230
[ 23.331603][ C0] ? call_timer_fn+0xe8/0x230
[ 23.331605][ C0] ? call_timer_fn+0xe8/0x230
[ 23.331610][ C0] ? __pfx_call_timer_fn+0x10/0x10
[ 23.331613][ C0] ? hlock_class+0x4e/0x130
[ 23.331622][ C0] ? mark_held_locks+0x9e/0xe0
[ 23.331634][ C0] __run_timers+0x545/0x810
[ 23.331638][ C0] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 23.331680][ C0] ? __pfx___run_timers+0x10/0x10
[ 23.331689][ C0] ? do_raw_spin_lock+0x131/0x270
[ 23.331694][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 23.331697][ C0] ? lock_acquire+0x32/0xc0
[ 23.331700][ C0] ? run_timer_softirq+0xe6/0x1c0
[ 23.331711][ C0] run_timer_softirq+0xee/0x1c0
[ 23.331716][ C0] handle_softirqs+0x1f6/0x5c0
[ 23.331725][ C0] ? br_device_event+0x627/0x800 [bridge]
[ 23.331756][ C0] do_softirq+0x4d/0xa0
[ 23.331760][ C0]
[ 23.331761][ C0]
[ 23.331763][ C0] __local_bh_enable_ip+0xf6/0x120
[ 23.331767][ C0] br_device_event+0x627/0x800 [bridge]
[ 23.331798][ C0] ? __pfx_br_device_event+0x10/0x10 [bridge]
[ 23.331829][ C0] ? packet_notifier+0x3b0/0x810
[ 23.331839][ C0] notifier_call_chain+0xcd/0x150
[ 23.331851][ C0] netdev_state_change+0xf5/0x120
[ 23.331855][ C0] ? __pfx_netdev_state_change+0x10/0x10
[ 23.331871][ C0] linkwatch_do_dev+0xd2/0x100
[ 23.331875][ C0] __linkwatch_run_queue+0x1df/0x650
[ 23.331882][ C0] ? __pfx___linkwatch_run_queue+0x10/0x10
[ 23.331889][ C0] ? lock_acquire+0x32/0xc0
[ 23.331899][ C0] linkwatch_event+0x40/0x60
[ 23.331901][ C0] process_one_work+0xe55/0x16d0
[ 23.331915][ C0] ? __pfx___lock_release+0x10/0x10
[ 23.331920][ C0] ? __pfx_process_one_work+0x10/0x10
[ 23.331933][ C0] ? assign_work+0x16c/0x240
[ 23.331943][ C0] worker_thread+0x58c/0xce0
[ 23.331948][ C0] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 23.331959][ C0] ? __pfx_worker_thread+0x10/0x10
[ 23.331965][ C0] kthread+0x359/0x5d0
[ 23.331970][ C0] ? __pfx_kthread+0x10/0x10
[ 23.331979][ C0] ? __pfx_kthread+0x10/0x10
[ 23.331984][ C0] ret_from_fork+0x31/0x70
[ 23.331988][ C0] ? __pfx_kthread+0x10/0x10
[ 23.331992][ C0] ret_from_fork_asm+0x1a/0x30
[ 23.332011][ C0]
[ 23.464229][ T57] br0: port 2(veth2) entered blocking state
[ 23.464644][ T57] br0: port 2(veth2) entered forwarding state
[ 36.873243][ T901] GACT probability NOT on
[ 200.861473][ T2138] br0: port 2(veth2) entered disabled state
[ 200.945541][ T2139] br0: port 1(veth1) entered disabled state
[ 201.036317][ T2140] veth2: left allmulticast mode
[ 201.036572][ T2140] veth2: left promiscuous mode
[ 201.036900][ T2140] br0: port 2(veth2) entered disabled state
[ 201.038929][ T2140] veth1: left allmulticast mode
[ 201.039148][ T2140] veth1: left promiscuous mode
[ 201.039455][ T2140] br0: port 1(veth1) entered disabled state