[ 11.593472][ T251] ip (251) used greatest stack depth: 24224 bytes left
[ 14.605480][ T300] br0: port 1(veth1) entered blocking state
[ 14.605957][ T300] br0: port 1(veth1) entered disabled state
[ 14.606633][ T300] veth1: entered allmulticast mode
[ 14.617260][ T300] veth1: entered promiscuous mode
[ 14.628588][ T300] ip (300) used greatest stack depth: 24048 bytes left
[ 14.719699][ T302] br0: port 2(veth2) entered blocking state
[ 14.720054][ T302] br0: port 2(veth2) entered disabled state
[ 14.720367][ T302] veth2: entered allmulticast mode
[ 14.722447][ T302] veth2: entered promiscuous mode
[ 14.955670][ T45] br0: port 1(veth1) entered blocking state
[ 14.956059][ T45] br0: port 1(veth1) entered forwarding state
[ 14.958249][ C0]
[ 14.958550][ C0] =============================
[ 14.958750][ C0] WARNING: suspicious RCU usage
[ 14.958966][ C0] 6.14.0-rc6-virtme #1 Not tainted
[ 14.959171][ C0] -----------------------------
[ 14.959370][ C0] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[ 14.959733][ C0]
[ 14.959733][ C0] other info that might help us debug this:
[ 14.959733][ C0]
[ 14.960128][ C0]
[ 14.960128][ C0] rcu_scheduler_active = 2, debug_locks = 1
[ 14.960434][ C0] 6 locks held by kworker/u17:1/45:
[ 14.960630][ C0] #0: ffff8880010a9d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0
[ 14.961052][ C0] #1: ffffc9000031fd40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0
[ 14.961443][ C0] #2: ffffffff857f0a08 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
[ 14.961793][ C0] #3: ffffc90000007d60 ((&pmctx->ip4_own_query.timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 14.962192][ C0] #4: ffff88800ff53358 (&br->multicast_lock){+.-.}-{3:3}, at: br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 14.962668][ C0] #5: ffffffff84f5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[ 14.963022][ C0]
[ 14.963022][ C0] stack backtrace:
[ 14.963268][ C0] CPU: 0 UID: 0 PID: 45 Comm: kworker/u17:1 Not tainted 6.14.0-rc6-virtme #1
[ 14.963273][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 14.963276][ C0] Workqueue: events_unbound linkwatch_event
[ 14.963281][ C0] Call Trace:
[ 14.963283][ C0]
[ 14.963286][ C0] dump_stack_lvl+0xb0/0xd0
[ 14.963294][ C0] lockdep_rcu_suspicious+0x1ea/0x280
[ 14.963306][ C0] dev_hard_start_xmit+0x2fc/0x3f0
[ 14.963317][ C0] __dev_queue_xmit+0xfaf/0x18d0
[ 14.963328][ C0] ? __build_skb_around+0x23d/0x350
[ 14.963339][ C0] ? __pfx___dev_queue_xmit+0x10/0x10
[ 14.963342][ C0] ? __pfx___alloc_skb+0x10/0x10
[ 14.963348][ C0] ? stack_trace_save+0x20/0xd0
[ 14.963355][ C0] ? __pfx_stack_trace_save+0x10/0x10
[ 14.963372][ C0] ? __pfx___br_multicast_query_handle_vlan+0x10/0x10 [bridge]
[ 14.963424][ C0] br_dev_queue_push_xmit+0x115/0x250 [bridge]
[ 14.963457][ C0] ? __pfx_br_dev_queue_push_xmit+0x10/0x10 [bridge]
[ 14.963490][ C0] ? br_multicast_count+0x42/0x130 [bridge]
[ 14.963529][ C0] __br_multicast_send_query+0x3b7/0x950 [bridge]
[ 14.963575][ C0] ? __pfx___br_multicast_send_query+0x10/0x10 [bridge]
[ 14.963616][ C0] ? __lock_acquire+0xb9a/0x1680
[ 14.963628][ C0] ? br_multicast_send_query+0x228/0x440 [bridge]
[ 14.963662][ C0] br_multicast_send_query+0x228/0x440 [bridge]
[ 14.963700][ C0] ? __pfx_br_multicast_send_query+0x10/0x10 [bridge]
[ 14.963733][ C0] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 14.963770][ C0] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 14.963805][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 14.963812][ C0] ? do_raw_spin_lock+0x131/0x270
[ 14.963817][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 14.963821][ C0] ? lock_acquire+0x32/0xc0
[ 14.963824][ C0] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 14.963864][ C0] ? br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 14.963897][ C0] br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 14.963935][ C0] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 14.963969][ C0] call_timer_fn+0x13b/0x230
[ 14.963972][ C0] ? call_timer_fn+0xe8/0x230
[ 14.963975][ C0] ? call_timer_fn+0xe8/0x230
[ 14.963979][ C0] ? __pfx_call_timer_fn+0x10/0x10
[ 14.963983][ C0] ? hlock_class+0x4e/0x130
[ 14.963992][ C0] ? mark_held_locks+0x9e/0xe0
[ 14.964004][ C0] __run_timers+0x545/0x810
[ 14.964008][ C0] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 14.964049][ C0] ? __pfx___run_timers+0x10/0x10
[ 14.964052][ C0] ? clockevents_program_event+0xf6/0x300
[ 14.964063][ C0] ? do_raw_spin_lock+0x131/0x270
[ 14.964067][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 14.964071][ C0] ? lock_acquire+0x32/0xc0
[ 14.964074][ C0] ? run_timer_softirq+0xe6/0x1c0
[ 14.964085][ C0] run_timer_softirq+0xee/0x1c0
[ 14.964090][ C0] handle_softirqs+0x1f6/0x5c0
[ 14.964104][ C0] __irq_exit_rcu+0xc4/0x100
[ 14.964107][ C0] irq_exit_rcu+0xe/0x20
[ 14.964110][ C0] sysvec_apic_timer_interrupt+0x78/0x90
[ 14.964115][ C0]
[ 14.964116][ C0]
[ 14.964118][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 14.964123][ C0] RIP: 0010:fib6_nh_init+0x57a/0x16f0
[ 14.964130][ C0] Code: be 00 00 00 00 00 fc ff df 4c 89 c7 48 c1 ef 03 0f b6 34 37 40 84 f6 74 0a 40 80 fe 03 0f 8e 09 0d 00 00 f6 82 b0 00 00 00 08 <74> 13 89 ce 83 e0 10 81 e6 00 00 10 80 09 f0 0f 84 8a 0a 00 00 83
[ 14.964133][ C0] RSP: 0018:ffffc9000031f448 EFLAGS: 00000246
[ 14.964136][ C0] RAX: 0000000000000021 RBX: ffff88800b48a6b8 RCX: 0000000080200001
[ 14.964138][ C0] RDX: ffff88800ff52000 RSI: 0000000000000000 RDI: 1ffff11001fea416
[ 14.964140][ C0] RBP: ffffc9000031f528 R08: ffff88800ff520b0 R09: fffffbfff0b32c32
[ 14.964141][ C0] R10: ffff888008e7a000 R11: ffffc9000031f684 R12: ffffc9000031f670
[ 14.964143][ C0] R13: 1ffff92000063e8f R14: ffffffff8793c5c0 R15: 0000000000000cc0
[ 14.964161][ C0] ? fib6_nh_init+0x1619/0x16f0
[ 14.964164][ C0] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 14.964173][ C0] ? __pfx_fib6_nh_init+0x10/0x10
[ 14.964176][ C0] ? __kasan_kmalloc+0x7f/0x90
[ 14.964183][ C0] ? trace_kmalloc+0x2d/0xe0
[ 14.964193][ C0] ? fib6_get_table+0x122/0x300
[ 14.964203][ C0] ip6_route_info_create+0xf2c/0x17d0
[ 14.964207][ C0] ? __lock_release+0x103/0x460
[ 14.964219][ C0] ? __pfx_ip6_route_info_create+0x10/0x10
[ 14.964228][ C0] ? addrconf_f6i_alloc+0x128/0x560
[ 14.964235][ C0] addrconf_f6i_alloc+0x315/0x560
[ 14.964242][ C0] ? __pfx_addrconf_f6i_alloc+0x10/0x10
[ 14.964246][ C0] ? hlock_class+0x4e/0x130
[ 14.964266][ C0] ? __create_object+0x5e/0xb0
[ 14.964272][ C0] ? trace_kmalloc+0x2d/0xe0
[ 14.964275][ C0] ? __kmalloc_cache_noprof+0x15d/0x390
[ 14.964288][ C0] ipv6_add_addr+0x411/0x1f70
[ 14.964294][ C0] ? hlock_class+0x4e/0x130
[ 14.964297][ C0] ? mark_lock+0x38/0x3e0
[ 14.964307][ C0] ? __pfx_ipv6_add_addr+0x10/0x10
[ 14.964313][ C0] ? ip6_route_add+0x79/0x140
[ 14.964319][ C0] ? ip6_route_add+0x8f/0x140
[ 14.964329][ C0] ? addrconf_add_linklocal+0xcc/0x2f0
[ 14.964334][ C0] addrconf_add_linklocal+0xcc/0x2f0
[ 14.964338][ C0] ? __pfx_addrconf_add_linklocal+0x10/0x10
[ 14.964357][ C0] addrconf_addr_gen+0x2a4/0x2f0
[ 14.964362][ C0] ? __pfx_addrconf_addr_gen+0x10/0x10
[ 14.964377][ C0] ? addrconf_notify+0x96d/0xd50
[ 14.964379][ C0] addrconf_notify+0x96d/0xd50
[ 14.964388][ C0] notifier_call_chain+0xcd/0x150
[ 14.964401][ C0] netdev_state_change+0xf5/0x120
[ 14.964405][ C0] ? __pfx_netdev_state_change+0x10/0x10
[ 14.964421][ C0] linkwatch_do_dev+0xd2/0x100
[ 14.964425][ C0] __linkwatch_run_queue+0x1df/0x650
[ 14.964432][ C0] ? __pfx___linkwatch_run_queue+0x10/0x10
[ 14.964439][ C0] ? lock_acquire+0x32/0xc0
[ 14.964449][ C0] linkwatch_event+0x40/0x60
[ 14.964452][ C0] process_one_work+0xe55/0x16d0
[ 14.964465][ C0] ? __pfx___lock_release+0x10/0x10
[ 14.964470][ C0] ? __pfx_process_one_work+0x10/0x10
[ 14.964483][ C0] ? assign_work+0x16c/0x240
[ 14.964496][ C0] worker_thread+0x58c/0xce0
[ 14.964510][ C0] ? __pfx_worker_thread+0x10/0x10
[ 14.964516][ C0] kthread+0x359/0x5d0
[ 14.964521][ C0] ? __pfx_kthread+0x10/0x10
[ 14.964530][ C0] ? __pfx_kthread+0x10/0x10
[ 14.964536][ C0] ret_from_fork+0x31/0x70
[ 14.964542][ C0] ? __pfx_kthread+0x10/0x10
[ 14.964545][ C0] ret_from_fork_asm+0x1a/0x30
[ 14.964566][ C0]
[ 15.036918][ T45] br0: port 2(veth2) entered blocking state
[ 15.037305][ T45] br0: port 2(veth2) entered forwarding state
[ 28.847949][ T354] GACT probability NOT on
[ 195.539421][ T1592] br0: port 2(veth2) entered disabled state
[ 195.630599][ T1593] br0: port 1(veth1) entered disabled state
[ 195.719176][ T1594] veth2: left allmulticast mode
[ 195.719468][ T1594] veth2: left promiscuous mode
[ 195.719824][ T1594] br0: port 2(veth2) entered disabled state
[ 195.721828][ T1594] veth1: left allmulticast mode
[ 195.722754][ T1594] veth1: left promiscuous mode
[ 195.723086][ T1594] br0: port 1(veth1) entered disabled state
[ 195.812183][ T1594] ip (1594) used greatest stack depth: 23824 bytes left