[ 10.376732][ T251] ip (251) used greatest stack depth: 24256 bytes left
[ 12.243420][ T292] 8021q: 802.1Q VLAN Support v1.8
[ 13.373461][ T308] br0: port 1(veth1) entered blocking state
[ 13.373896][ T308] br0: port 1(veth1) entered disabled state
[ 13.374300][ T308] veth1: entered allmulticast mode
[ 13.376327][ T308] veth1: entered promiscuous mode
[ 13.442375][ T310] br0: port 2(veth2) entered blocking state
[ 13.442767][ T310] br0: port 2(veth2) entered disabled state
[ 13.443204][ T310] veth2: entered allmulticast mode
[ 13.448676][ T310] veth2: entered promiscuous mode
[ 13.619621][ T40] br0: port 1(veth1) entered blocking state
[ 13.619994][ T40] br0: port 1(veth1) entered forwarding state
[ 13.621580][ C3]
[ 13.621804][ C3] =============================
[ 13.622008][ C3] WARNING: suspicious RCU usage
[ 13.622220][ C3] 6.14.0-rc6-virtme #1 Not tainted
[ 13.622438][ C3] -----------------------------
[ 13.622644][ C3] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[ 13.622981][ C3]
[ 13.622981][ C3] other info that might help us debug this:
[ 13.622981][ C3]
[ 13.623361][ C3]
[ 13.623361][ C3] rcu_scheduler_active = 2, debug_locks = 1
[ 13.623650][ C3] 6 locks held by kworker/u19:0/40:
[ 13.623851][ C3] #0: ffff8880010a9d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0
[ 13.624278][ C3] #1: ffffc900002cfd40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0
[ 13.624655][ C3] #2: ffffffffbb3f0a08 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
[ 13.625004][ C3] #3: ffffc900002a0d78 ((&pmctx->ip4_own_query.timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 13.625401][ C3] #4: ffff88800fda3358 (&br->multicast_lock){+.-.}-{3:3}, at: br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 13.625867][ C3] #5: ffffffffbab5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[ 13.626213][ C3]
[ 13.626213][ C3] stack backtrace:
[ 13.626584][ C3] CPU: 3 UID: 0 PID: 40 Comm: kworker/u19:0 Not tainted 6.14.0-rc6-virtme #1
[ 13.626590][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 13.626592][ C3] Workqueue: events_unbound linkwatch_event
[ 13.626600][ C3] Call Trace:
[ 13.626605][ C3]
[ 13.626608][ C3] dump_stack_lvl+0xb0/0xd0
[ 13.626621][ C3] lockdep_rcu_suspicious+0x1ea/0x280
[ 13.626636][ C3] dev_hard_start_xmit+0x2fc/0x3f0
[ 13.626647][ C3] __dev_queue_xmit+0xfaf/0x18d0
[ 13.626658][ C3] ? __build_skb_around+0x23d/0x350
[ 13.626672][ C3] ? __pfx___dev_queue_xmit+0x10/0x10
[ 13.626675][ C3] ? __pfx___alloc_skb+0x10/0x10
[ 13.626681][ C3] ? stack_trace_save+0x94/0xd0
[ 13.626689][ C3] ? __pfx_stack_trace_save+0x10/0x10
[ 13.626696][ C3] ? __pfx___br_multicast_query_handle_vlan+0x10/0x10 [bridge]
[ 13.626758][ C3] br_dev_queue_push_xmit+0x115/0x250 [bridge]
[ 13.626801][ C3] ? __pfx_br_dev_queue_push_xmit+0x10/0x10 [bridge]
[ 13.626834][ C3] ? br_multicast_count+0x42/0x130 [bridge]
[ 13.626874][ C3] __br_multicast_send_query+0x3b7/0x950 [bridge]
[ 13.626920][ C3] ? __pfx___br_multicast_send_query+0x10/0x10 [bridge]
[ 13.626961][ C3] ? __lock_acquire+0xb9a/0x1680
[ 13.626972][ C3] ? br_multicast_send_query+0x228/0x440 [bridge]
[ 13.627006][ C3] br_multicast_send_query+0x228/0x440 [bridge]
[ 13.627044][ C3] ? __pfx_br_multicast_send_query+0x10/0x10 [bridge]
[ 13.627081][ C3] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 13.627118][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 13.627155][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 13.627162][ C3] ? do_raw_spin_lock+0x131/0x270
[ 13.627167][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 13.627170][ C3] ? lock_acquire+0x32/0xc0
[ 13.627173][ C3] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 13.627213][ C3] ? br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 13.627246][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 13.627280][ C3] br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 13.627317][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 13.627351][ C3] call_timer_fn+0x13b/0x230
[ 13.627354][ C3] ? call_timer_fn+0xe8/0x230
[ 13.627357][ C3] ? call_timer_fn+0xe8/0x230
[ 13.627362][ C3] ? __pfx_call_timer_fn+0x10/0x10
[ 13.627365][ C3] ? hlock_class+0x4e/0x130
[ 13.627374][ C3] ? mark_held_locks+0x9e/0xe0
[ 13.627387][ C3] __run_timers+0x545/0x810
[ 13.627391][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 13.627433][ C3] ? __pfx___run_timers+0x10/0x10
[ 13.627442][ C3] ? do_raw_spin_lock+0x131/0x270
[ 13.627447][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 13.627451][ C3] ? lock_acquire+0x32/0xc0
[ 13.627453][ C3] ? run_timer_softirq+0xe6/0x1c0
[ 13.627464][ C3] run_timer_softirq+0xee/0x1c0
[ 13.627470][ C3] handle_softirqs+0x1f6/0x5c0
[ 13.627480][ C3] ? ip6_route_add+0x79/0x140
[ 13.627492][ C3] do_softirq+0x4d/0xa0
[ 13.627496][ C3]
[ 13.627497][ C3]
[ 13.627498][ C3] __local_bh_enable_ip+0xf6/0x120
[ 13.627503][ C3] ip6_route_add+0x79/0x140
[ 13.627510][ C3] addrconf_prefix_route+0x2a6/0x430
[ 13.627519][ C3] ? __pfx_addrconf_prefix_route+0x10/0x10
[ 13.627522][ C3] ? atomic_notifier_call_chain+0x85/0x140
[ 13.627550][ C3] ? ip6_route_add+0xe7/0x140
[ 13.627562][ C3] addrconf_add_linklocal+0x132/0x2f0
[ 13.627568][ C3] ? __pfx_addrconf_add_linklocal+0x10/0x10
[ 13.627587][ C3] addrconf_addr_gen+0x2a4/0x2f0
[ 13.627591][ C3] ? __pfx_addrconf_addr_gen+0x10/0x10
[ 13.627606][ C3] ? addrconf_notify+0x96d/0xd50
[ 13.627609][ C3] addrconf_notify+0x96d/0xd50
[ 13.627617][ C3] notifier_call_chain+0xcd/0x150
[ 13.627628][ C3] netdev_state_change+0xf5/0x120
[ 13.627632][ C3] ? __pfx_netdev_state_change+0x10/0x10
[ 13.627648][ C3] linkwatch_do_dev+0xd2/0x100
[ 13.627652][ C3] __linkwatch_run_queue+0x1df/0x650
[ 13.627661][ C3] ? __pfx___linkwatch_run_queue+0x10/0x10
[ 13.627667][ C3] ? lock_acquire+0x32/0xc0
[ 13.627678][ C3] linkwatch_event+0x40/0x60
[ 13.627680][ C3] process_one_work+0xe55/0x16d0
[ 13.627694][ C3] ? __pfx___lock_release+0x10/0x10
[ 13.627699][ C3] ? __pfx_process_one_work+0x10/0x10
[ 13.627713][ C3] ? assign_work+0x16c/0x240
[ 13.627723][ C3] worker_thread+0x58c/0xce0
[ 13.627737][ C3] ? __pfx_worker_thread+0x10/0x10
[ 13.627744][ C3] kthread+0x359/0x5d0
[ 13.627748][ C3] ? __pfx_kthread+0x10/0x10
[ 13.627757][ C3] ? __pfx_kthread+0x10/0x10
[ 13.627763][ C3] ret_from_fork+0x31/0x70
[ 13.627769][ C3] ? __pfx_kthread+0x10/0x10
[ 13.627772][ C3] ret_from_fork_asm+0x1a/0x30
[ 13.627797][ C3]
[ 13.716271][ T41] br0: port 2(veth2) entered blocking state
[ 13.716549][ T41] br0: port 2(veth2) entered forwarding state
[ 41.930690][ T380] GACT probability NOT on
[ 41.950332][ T378] tc (378) used greatest stack depth: 24176 bytes left
[ 71.829464][ T595] br1: port 1(veth0) entered blocking state
[ 71.829774][ T595] br1: port 1(veth0) entered disabled state
[ 71.830042][ T595] veth0: entered allmulticast mode
[ 71.832049][ T595] veth0: entered promiscuous mode
[ 71.841826][ T595] ip (595) used greatest stack depth: 23128 bytes left
[ 71.909659][ T597] br1: port 1(veth0) entered blocking state
[ 71.910180][ T597] br1: port 1(veth0) entered forwarding state
[ 74.188949][ T602] veth0: left allmulticast mode
[ 74.189238][ T602] veth0: left promiscuous mode
[ 74.189590][ T602] br1: port 1(veth0) entered disabled state
[ 86.171013][ T718] br0: vlan filtering disabled, automatically disabling multicast vlan snooping
[ 86.183776][ T718] ip (718) used greatest stack depth: 22584 bytes left
[ 86.644895][ T730] br0: port 2(veth2) entered disabled state
[ 86.716833][ T731] br0: port 1(veth1) entered disabled state
[ 86.789457][ T732] veth2: left allmulticast mode
[ 86.789714][ T732] veth2: left promiscuous mode
[ 86.790035][ T732] br0: port 2(veth2) entered disabled state
[ 86.791716][ T732] veth1: left allmulticast mode
[ 86.791933][ T732] veth1: left promiscuous mode
[ 86.793240][ T732] br0: port 1(veth1) entered disabled state