[ 10.892714][ T252] ip (252) used greatest stack depth: 23888 bytes left
[ 13.530403][ T299] br0: port 1(veth1) entered blocking state
[ 13.530909][ T299] br0: port 1(veth1) entered disabled state
[ 13.531358][ T299] veth1: entered allmulticast mode
[ 13.533933][ T299] veth1: entered promiscuous mode
[ 13.620678][ T301] br0: port 2(veth2) entered blocking state
[ 13.621109][ T301] br0: port 2(veth2) entered disabled state
[ 13.621864][ T301] veth2: entered allmulticast mode
[ 13.623962][ T301] veth2: entered promiscuous mode
[ 13.784478][ T45] br0: port 1(veth1) entered blocking state
[ 13.784844][ T45] br0: port 1(veth1) entered forwarding state
[ 13.786548][ C3]
[ 13.786849][ C3] =============================
[ 13.787219][ C3] WARNING: suspicious RCU usage
[ 13.787528][ C3] 6.14.0-rc6-virtme #1 Not tainted
[ 13.787772][ C3] -----------------------------
[ 13.788048][ C3] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[ 13.788500][ C3]
[ 13.788500][ C3] other info that might help us debug this:
[ 13.788500][ C3]
[ 13.788950][ C3]
[ 13.788950][ C3] rcu_scheduler_active = 2, debug_locks = 1
[ 13.789400][ C3] 6 locks held by kworker/u17:1/45:
[ 13.789610][ C3] #0: ffff8880010a9d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0
[ 13.790145][ C3] #1: ffffc9000031fd40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0
[ 13.790568][ C3] #2: ffffffff867f0a08 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
[ 13.790937][ C3] #3: ffffc900002a0d60 ((&pmctx->ip4_own_query.timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 13.791573][ C3] #4: ffff88800d593358 (&br->multicast_lock){+.-.}-{3:3}, at: br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 13.792184][ C3] #5: ffffffff85f5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[ 13.792662][ C3]
[ 13.792662][ C3] stack backtrace:
[ 13.792924][ C3] CPU: 3 UID: 0 PID: 45 Comm: kworker/u17:1 Not tainted 6.14.0-rc6-virtme #1
[ 13.792928][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 13.792931][ C3] Workqueue: events_unbound linkwatch_event
[ 13.792937][ C3] Call Trace:
[ 13.792939][ C3]
[ 13.792942][ C3] dump_stack_lvl+0xb0/0xd0
[ 13.792949][ C3] lockdep_rcu_suspicious+0x1ea/0x280
[ 13.792961][ C3] dev_hard_start_xmit+0x2fc/0x3f0
[ 13.792972][ C3] __dev_queue_xmit+0xfaf/0x18d0
[ 13.792988][ C3] ? __build_skb_around+0x23d/0x350
[ 13.793003][ C3] ? __pfx___dev_queue_xmit+0x10/0x10
[ 13.793007][ C3] ? __pfx___alloc_skb+0x10/0x10
[ 13.793016][ C3] ? stack_trace_save+0x20/0xd0
[ 13.793025][ C3] ? __pfx_stack_trace_save+0x10/0x10
[ 13.793037][ C3] ? __pfx___br_multicast_query_handle_vlan+0x10/0x10 [bridge]
[ 13.793134][ C3] br_dev_queue_push_xmit+0x115/0x250 [bridge]
[ 13.793191][ C3] ? __pfx_br_dev_queue_push_xmit+0x10/0x10 [bridge]
[ 13.793250][ C3] ? br_multicast_count+0x42/0x130 [bridge]
[ 13.793291][ C3] __br_multicast_send_query+0x3b7/0x950 [bridge]
[ 13.793336][ C3] ? __pfx___br_multicast_send_query+0x10/0x10 [bridge]
[ 13.793376][ C3] ? __lock_acquire+0xb9a/0x1680
[ 13.793389][ C3] ? br_multicast_send_query+0x228/0x440 [bridge]
[ 13.793423][ C3] br_multicast_send_query+0x228/0x440 [bridge]
[ 13.793461][ C3] ? __pfx_br_multicast_send_query+0x10/0x10 [bridge]
[ 13.793494][ C3] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 13.793531][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 13.793566][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 13.793572][ C3] ? do_raw_spin_lock+0x131/0x270
[ 13.793577][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 13.793581][ C3] ? lock_acquire+0x32/0xc0
[ 13.793583][ C3] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 13.793624][ C3] ? br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 13.793657][ C3] br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 13.793693][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 13.793727][ C3] call_timer_fn+0x13b/0x230
[ 13.793732][ C3] ? call_timer_fn+0xe8/0x230
[ 13.793735][ C3] ? call_timer_fn+0xe8/0x230
[ 13.793739][ C3] ? __pfx_call_timer_fn+0x10/0x10
[ 13.793743][ C3] ? hlock_class+0x4e/0x130
[ 13.793752][ C3] ? mark_held_locks+0x9e/0xe0
[ 13.793764][ C3] __run_timers+0x545/0x810
[ 13.793768][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 13.793810][ C3] ? __pfx___run_timers+0x10/0x10
[ 13.793813][ C3] ? clockevents_program_event+0xf6/0x300
[ 13.793822][ C3] ? do_raw_spin_lock+0x131/0x270
[ 13.793827][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 13.793830][ C3] ? lock_acquire+0x32/0xc0
[ 13.793833][ C3] ? run_timer_softirq+0xe6/0x1c0
[ 13.793844][ C3] run_timer_softirq+0xee/0x1c0
[ 13.793849][ C3] handle_softirqs+0x1f6/0x5c0
[ 13.793862][ C3] __irq_exit_rcu+0xc4/0x100
[ 13.793866][ C3] irq_exit_rcu+0xe/0x20
[ 13.793869][ C3] sysvec_apic_timer_interrupt+0x78/0x90
[ 13.793873][ C3]
[ 13.793874][ C3]
[ 13.793877][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 13.793882][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 13.793886][ C3] Code: 10 e8 b1 3d 87 fd 48 89 ef e8 f9 ad 87 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d b5 0d 0f 7b <74> 0e 5b 5d c3 cc cc cc cc e8 2f df ac fd eb dc 0f 1f 44 00 00 5b
[ 13.793888][ C3] RSP: 0018:ffffc9000031f180 EFLAGS: 00000282
[ 13.793892][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff10066b1
[ 13.793894][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84f4b761
[ 13.793895][ C3] RBP: ffff88800104f440 R08: 0000000000000001 R09: fffffbfff1005be1
[ 13.793897][ C3] R10: ffffffff8802df0f R11: ffff8880021645c0 R12: ffff88800104f440
[ 13.793899][ C3] R13: ffffea000029e080 R14: ffff88800104de40 R15: ffff88800a782278
[ 13.793911][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 13.793920][ C3] get_partial_node.part.0+0x1c2/0x3b0
[ 13.793934][ C3] ? __alloc_object+0x2f/0x270
[ 13.793939][ C3] ___slab_alloc+0x4b8/0xee0
[ 13.793944][ C3] ? __alloc_object+0x2f/0x270
[ 13.793948][ C3] ? ref_tracker_alloc+0x91/0x460
[ 13.793953][ C3] ? get_any_partial+0x201/0x260
[ 13.793959][ C3] ? addrconf_add_linklocal+0x132/0x2f0
[ 13.793963][ C3] ? addrconf_addr_gen+0x2a4/0x2f0
[ 13.793966][ C3] ? addrconf_notify+0x96d/0xd50
[ 13.793969][ C3] ? notifier_call_chain+0xcd/0x150
[ 13.793974][ C3] ? netdev_state_change+0xf5/0x120
[ 13.793976][ C3] ? linkwatch_do_dev+0xd2/0x100
[ 13.793979][ C3] ? __linkwatch_run_queue+0x1df/0x650
[ 13.793982][ C3] ? linkwatch_event+0x40/0x60
[ 13.793984][ C3] ? process_one_work+0xe55/0x16d0
[ 13.793992][ C3] ? __alloc_object+0x2f/0x270
[ 13.793996][ C3] ? kmem_cache_alloc_noprof+0x1be/0x350
[ 13.793999][ C3] kmem_cache_alloc_noprof+0x1be/0x350
[ 13.794005][ C3] ? mark_lock+0x38/0x3e0
[ 13.794012][ C3] __alloc_object+0x2f/0x270
[ 13.794021][ C3] __create_object+0x22/0xb0
[ 13.794033][ C3] __kmalloc_cache_noprof+0x2df/0x390
[ 13.794054][ C3] ref_tracker_alloc+0x13c/0x460
[ 13.794064][ C3] ? __pfx_ref_tracker_alloc+0x10/0x10
[ 13.794068][ C3] ? dev_get_by_index+0xb2/0x190
[ 13.794076][ C3] ? __pfx___lock_release+0x10/0x10
[ 13.794082][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 13.794105][ C3] ? dev_get_by_index+0xb2/0x190
[ 13.794126][ C3] netdev_get_by_index+0x5e/0x80
[ 13.794137][ C3] fib6_nh_init+0x3dd/0x16f0
[ 13.794146][ C3] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 13.794160][ C3] ? __pfx_fib6_nh_init+0x10/0x10
[ 13.794171][ C3] ? trace_kmalloc+0x2d/0xe0
[ 13.794176][ C3] ? __kmalloc_noprof+0x1f2/0x490
[ 13.794196][ C3] ip6_route_info_create+0xf2c/0x17d0
[ 13.794216][ C3] ? __pfx_ip6_route_info_create+0x10/0x10
[ 13.794226][ C3] ? __pfx___lock_release+0x10/0x10
[ 13.794246][ C3] ip6_route_add+0x1c/0x140
[ 13.794259][ C3] addrconf_prefix_route+0x2a6/0x430
[ 13.794276][ C3] ? __pfx_addrconf_prefix_route+0x10/0x10
[ 13.794281][ C3] ? atomic_notifier_call_chain+0x85/0x140
[ 13.794332][ C3] ? ip6_route_add+0xe7/0x140
[ 13.794350][ C3] addrconf_add_linklocal+0x132/0x2f0
[ 13.794361][ C3] ? __pfx_addrconf_add_linklocal+0x10/0x10
[ 13.794396][ C3] addrconf_addr_gen+0x2a4/0x2f0
[ 13.794404][ C3] ? __pfx_addrconf_addr_gen+0x10/0x10
[ 13.794429][ C3] ? addrconf_notify+0x96d/0xd50
[ 13.794435][ C3] addrconf_notify+0x96d/0xd50
[ 13.794449][ C3] notifier_call_chain+0xcd/0x150
[ 13.794469][ C3] netdev_state_change+0xf5/0x120
[ 13.794477][ C3] ? __pfx_netdev_state_change+0x10/0x10
[ 13.794507][ C3] linkwatch_do_dev+0xd2/0x100
[ 13.794516][ C3] __linkwatch_run_queue+0x1df/0x650
[ 13.794529][ C3] ? __pfx___linkwatch_run_queue+0x10/0x10
[ 13.794542][ C3] ? lock_acquire+0x32/0xc0
[ 13.794561][ C3] linkwatch_event+0x40/0x60
[ 13.794565][ C3] process_one_work+0xe55/0x16d0
[ 13.794592][ C3] ? __pfx___lock_release+0x10/0x10
[ 13.794602][ C3] ? __pfx_process_one_work+0x10/0x10
[ 13.794627][ C3] ? assign_work+0x16c/0x240
[ 13.794646][ C3] worker_thread+0x58c/0xce0
[ 13.794673][ C3] ? __pfx_worker_thread+0x10/0x10
[ 13.794686][ C3] kthread+0x359/0x5d0
[ 13.794694][ C3] ? __pfx_kthread+0x10/0x10
[ 13.794711][ C3] ? __pfx_kthread+0x10/0x10
[ 13.794723][ C3] ret_from_fork+0x31/0x70
[ 13.794729][ C3] ? __pfx_kthread+0x10/0x10
[ 13.794735][ C3] ret_from_fork_asm+0x1a/0x30
[ 13.794775][ C3]
[ 13.912276][ T45] br0: port 2(veth2) entered blocking state
[ 13.912691][ T45] br0: port 2(veth2) entered forwarding state
[ 27.314606][ T354] GACT probability NOT on
[ 186.333641][ T1592] br0: port 2(veth2) entered disabled state
[ 186.342458][ T1592] ip (1592) used greatest stack depth: 23368 bytes left
[ 186.409227][ T1593] br0: port 1(veth1) entered disabled state
[ 186.485020][ T1594] veth2: left allmulticast mode
[ 186.485278][ T1594] veth2: left promiscuous mode
[ 186.485598][ T1594] br0: port 2(veth2) entered disabled state
[ 186.488571][ T1594] veth1: left allmulticast mode
[ 186.488787][ T1594] veth1: left promiscuous mode
[ 186.489089][ T1594] br0: port 1(veth1) entered disabled state