[ 32.790997][ T490] br0: port 1(veth1) entered blocking state
[ 32.791426][ T490] br0: port 1(veth1) entered disabled state
[ 32.791697][ T490] veth1: entered allmulticast mode
[ 32.801120][ T490] veth1: entered promiscuous mode
[ 32.905095][ T492] br0: port 2(veth2) entered blocking state
[ 32.905380][ T492] br0: port 2(veth2) entered disabled state
[ 32.905645][ T492] veth2: entered allmulticast mode
[ 32.907517][ T492] veth2: entered promiscuous mode
[ 32.914751][ T492] ip (492) used greatest stack depth: 24432 bytes left
[ 33.065898][ T152] br0: port 1(veth1) entered blocking state
[ 33.066333][ T152] br0: port 1(veth1) entered forwarding state
[ 33.067529][ C1]
[ 33.067757][ C1] =============================
[ 33.067964][ C1] WARNING: suspicious RCU usage
[ 33.068180][ C1] 6.14.0-rc6-virtme #1 Not tainted
[ 33.068378][ C1] -----------------------------
[ 33.068573][ C1] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[ 33.068915][ C1]
[ 33.068915][ C1] other info that might help us debug this:
[ 33.068915][ C1]
[ 33.069312][ C1]
[ 33.069312][ C1] rcu_scheduler_active = 2, debug_locks = 1
[ 33.069630][ C1] 6 locks held by kworker/u19:2/152:
[ 33.069829][ C1] #0: ffff8880010a9d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0
[ 33.070257][ C1] #1: ffffc900007b7d40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0
[ 33.070780][ C1] #2: ffffffffbaff0a08 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
[ 33.071140][ C1] #3: ffffc900001f0d60 ((&pmctx->ip4_own_query.timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 33.071552][ C1] #4: ffff88800c5a3358 (&br->multicast_lock){+.-.}-{3:3}, at: br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 33.072028][ C1] #5: ffffffffba75b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[ 33.072385][ C1]
[ 33.072385][ C1] stack backtrace:
[ 33.072632][ C1] CPU: 1 UID: 0 PID: 152 Comm: kworker/u19:2 Not tainted 6.14.0-rc6-virtme #1
[ 33.072637][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 33.072639][ C1] Workqueue: events_unbound linkwatch_event
[ 33.072644][ C1] Call Trace:
[ 33.072646][ C1]
[ 33.072650][ C1] dump_stack_lvl+0xb0/0xd0
[ 33.072657][ C1] lockdep_rcu_suspicious+0x1ea/0x280
[ 33.072668][ C1] dev_hard_start_xmit+0x2fc/0x3f0
[ 33.072679][ C1] __dev_queue_xmit+0xfaf/0x18d0
[ 33.072690][ C1] ? __build_skb_around+0x23d/0x350
[ 33.072700][ C1] ? __pfx___dev_queue_xmit+0x10/0x10
[ 33.072703][ C1] ? __pfx___alloc_skb+0x10/0x10
[ 33.072709][ C1] ? stack_trace_save+0x20/0xd0
[ 33.072714][ C1] ? __pfx_stack_trace_save+0x10/0x10
[ 33.072722][ C1] ? __pfx___br_multicast_query_handle_vlan+0x10/0x10 [bridge]
[ 33.072774][ C1] br_dev_queue_push_xmit+0x115/0x250 [bridge]
[ 33.072806][ C1] ? __pfx_br_dev_queue_push_xmit+0x10/0x10 [bridge]
[ 33.072839][ C1] ? br_multicast_count+0x42/0x130 [bridge]
[ 33.072879][ C1] __br_multicast_send_query+0x3b7/0x950 [bridge]
[ 33.072924][ C1] ? __pfx___br_multicast_send_query+0x10/0x10 [bridge]
[ 33.072965][ C1] ? __lock_acquire+0xb9a/0x1680
[ 33.072977][ C1] ? br_multicast_send_query+0x228/0x440 [bridge]
[ 33.073011][ C1] br_multicast_send_query+0x228/0x440 [bridge]
[ 33.073050][ C1] ? __pfx_br_multicast_send_query+0x10/0x10 [bridge]
[ 33.073084][ C1] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 33.073121][ C1] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 33.073159][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 33.073165][ C1] ? do_raw_spin_lock+0x131/0x270
[ 33.073170][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 33.073174][ C1] ? lock_acquire+0x32/0xc0
[ 33.073177][ C1] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 33.073219][ C1] ? br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 33.073252][ C1] br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 33.073290][ C1] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 33.073324][ C1] call_timer_fn+0x13b/0x230
[ 33.073328][ C1] ? call_timer_fn+0xe8/0x230
[ 33.073331][ C1] ? call_timer_fn+0xe8/0x230
[ 33.073335][ C1] ? __pfx_call_timer_fn+0x10/0x10
[ 33.073339][ C1] ? hlock_class+0x4e/0x130
[ 33.073348][ C1] ? mark_held_locks+0x9e/0xe0
[ 33.073361][ C1] __run_timers+0x545/0x810
[ 33.073365][ C1] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 33.073407][ C1] ? __pfx___run_timers+0x10/0x10
[ 33.073410][ C1] ? clockevents_program_event+0xf6/0x300
[ 33.073420][ C1] ? do_raw_spin_lock+0x131/0x270
[ 33.073425][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 33.073428][ C1] ? lock_acquire+0x32/0xc0
[ 33.073431][ C1] ? run_timer_softirq+0xe6/0x1c0
[ 33.073442][ C1] run_timer_softirq+0xee/0x1c0
[ 33.073448][ C1] handle_softirqs+0x1f6/0x5c0
[ 33.073462][ C1] __irq_exit_rcu+0xc4/0x100
[ 33.073466][ C1] irq_exit_rcu+0xe/0x20
[ 33.073468][ C1] sysvec_apic_timer_interrupt+0x78/0x90
[ 33.073473][ C1]
[ 33.073474][ C1]
[ 33.073477][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 33.073481][ C1] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 33.073485][ C1] 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 8f 46 <74> 0e 5b 5d c3 cc cc cc cc e8 2f df ac fd eb dc 0f 1f 44 00 00 5b
[ 33.073488][ C1] RSP: 0018:ffffc900007b7760 EFLAGS: 00000282
[ 33.073491][ C1] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff79066b1
[ 33.073493][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb974b761
[ 33.073495][ C1] RBP: ffff888001041080 R08: 0000000000000001 R09: fffffbfff7905be1
[ 33.073496][ C1] R10: ffffffffbc82df0f R11: ffff8880050b45c0 R12: ffff888001041080
[ 33.073498][ C1] R13: ffffea000023c200 R14: ffff8880010433c0 R15: ffff888008f0c000
[ 33.073511][ C1] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 33.073520][ C1] get_partial_node.part.0+0x1c2/0x3b0
[ 33.073535][ C1] ___slab_alloc+0x4b8/0xee0
[ 33.073539][ C1] ? __lock_release+0x103/0x460
[ 33.073542][ C1] ? __alloc_skb+0x111/0x2e0
[ 33.073546][ C1] ? get_any_partial+0x201/0x260
[ 33.073566][ C1] ? __kmalloc_node_track_caller_noprof+0x26b/0x4a0
[ 33.073571][ C1] __kmalloc_node_track_caller_noprof+0x26b/0x4a0
[ 33.073574][ C1] ? __create_object+0x5e/0xb0
[ 33.073581][ C1] ? __alloc_skb+0x111/0x2e0
[ 33.073588][ C1] kmalloc_reserve+0xbc/0x240
[ 33.073597][ C1] __alloc_skb+0x111/0x2e0
[ 33.073601][ C1] ? __pfx___alloc_skb+0x10/0x10
[ 33.073608][ C1] ? rtnl_prop_list_size+0x245/0x290
[ 33.073616][ C1] ? if_nlmsg_size+0x350/0x8c0
[ 33.073625][ C1] rtmsg_ifinfo_build_skb+0x79/0x230
[ 33.073634][ C1] rtmsg_ifinfo_event.part.0+0x2d/0x120
[ 33.073644][ C1] rtmsg_ifinfo+0x5b/0xa0
[ 33.073653][ C1] netdev_state_change+0x10f/0x120
[ 33.073657][ C1] ? __pfx_netdev_state_change+0x10/0x10
[ 33.073673][ C1] linkwatch_do_dev+0xd2/0x100
[ 33.073677][ C1] __linkwatch_run_queue+0x1df/0x650
[ 33.073684][ C1] ? __pfx___linkwatch_run_queue+0x10/0x10
[ 33.073691][ C1] ? lock_acquire+0x32/0xc0
[ 33.073701][ C1] linkwatch_event+0x40/0x60
[ 33.073704][ C1] process_one_work+0xe55/0x16d0
[ 33.073718][ C1] ? __pfx___lock_release+0x10/0x10
[ 33.073723][ C1] ? __pfx_process_one_work+0x10/0x10
[ 33.073737][ C1] ? assign_work+0x16c/0x240
[ 33.073747][ C1] worker_thread+0x58c/0xce0
[ 33.073752][ C1] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 33.073764][ C1] ? __pfx_worker_thread+0x10/0x10
[ 33.073770][ C1] kthread+0x359/0x5d0
[ 33.073775][ C1] ? __pfx_kthread+0x10/0x10
[ 33.073784][ C1] ? __pfx_kthread+0x10/0x10
[ 33.073790][ C1] ret_from_fork+0x31/0x70
[ 33.073794][ C1] ? __pfx_kthread+0x10/0x10
[ 33.073798][ C1] ret_from_fork_asm+0x1a/0x30
[ 33.073818][ C1]
[ 33.192851][ T151] br0: port 2(veth2) entered blocking state
[ 33.193220][ T151] br0: port 2(veth2) entered forwarding state
[ 46.661347][ T544] GACT probability NOT on
[ 63.435540][ T648] tc (648) used greatest stack depth: 23552 bytes left
[ 207.771986][ T1781] br0: port 2(veth2) entered disabled state
[ 207.877545][ T1782] br0: port 1(veth1) entered disabled state
[ 207.955600][ T1783] veth2: left allmulticast mode
[ 207.955850][ T1783] veth2: left promiscuous mode
[ 207.956240][ T1783] br0: port 2(veth2) entered disabled state
[ 207.957999][ T1783] veth1: left allmulticast mode
[ 207.958562][ T1783] veth1: left promiscuous mode
[ 207.958883][ T1783] br0: port 1(veth1) entered disabled state