[ 11.058993][ T253] ip (253) used greatest stack depth: 24352 bytes left
[ 11.473607][ T262] ip (262) used greatest stack depth: 23504 bytes left
[ 14.142999][ T302] br0: port 1(veth1) entered blocking state
[ 14.143474][ T302] br0: port 1(veth1) entered disabled state
[ 14.143852][ T302] veth1: entered allmulticast mode
[ 14.146167][ T302] veth1: entered promiscuous mode
[ 14.231529][ T304] br0: port 2(veth2) entered blocking state
[ 14.231836][ T304] br0: port 2(veth2) entered disabled state
[ 14.232833][ T304] veth2: entered allmulticast mode
[ 14.234834][ T304] veth2: entered promiscuous mode
[ 14.402332][ T38] br0: port 1(veth1) entered blocking state
[ 14.402726][ T38] br0: port 1(veth1) entered forwarding state
[ 14.404438][ C3]
[ 14.404674][ C3] =============================
[ 14.404875][ C3] WARNING: suspicious RCU usage
[ 14.405104][ C3] 6.14.0-rc6-virtme #1 Not tainted
[ 14.405310][ C3] -----------------------------
[ 14.405507][ C3] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[ 14.405851][ C3]
[ 14.405851][ C3] other info that might help us debug this:
[ 14.405851][ C3]
[ 14.406254][ C3]
[ 14.406254][ C3] rcu_scheduler_active = 2, debug_locks = 1
[ 14.406552][ C3] 7 locks held by kworker/u17:0/38:
[ 14.406759][ C3] #0: ffff8880010a9d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0
[ 14.407179][ C3] #1: ffffc900002afd40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0
[ 14.407597][ C3] #2: ffffffffa07f0a08 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
[ 14.407996][ C3] #3: ffffffffa01440f0 (remove_cache_srcu){.+.+}-{0:0}, at: kasan_quarantine_reduce+0x88/0x1e0
[ 14.408396][ C3] #4: ffffc900002a0d60 ((&pmctx->ip4_own_query.timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 14.408806][ C3] #5: ffff888001e4b358 (&br->multicast_lock){+.-.}-{3:3}, at: br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 14.409313][ C3] #6: ffffffff9ff5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[ 14.409830][ C3]
[ 14.409830][ C3] stack backtrace:
[ 14.410088][ C3] CPU: 3 UID: 0 PID: 38 Comm: kworker/u17:0 Not tainted 6.14.0-rc6-virtme #1
[ 14.410093][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 14.410096][ C3] Workqueue: events_unbound linkwatch_event
[ 14.410102][ C3] Call Trace:
[ 14.410104][ C3]
[ 14.410107][ C3] dump_stack_lvl+0xb0/0xd0
[ 14.410116][ C3] lockdep_rcu_suspicious+0x1ea/0x280
[ 14.410128][ C3] dev_hard_start_xmit+0x2fc/0x3f0
[ 14.410140][ C3] __dev_queue_xmit+0xfaf/0x18d0
[ 14.410150][ C3] ? __build_skb_around+0x23d/0x350
[ 14.410162][ C3] ? __pfx___dev_queue_xmit+0x10/0x10
[ 14.410165][ C3] ? __pfx___alloc_skb+0x10/0x10
[ 14.410171][ C3] ? stack_trace_save+0x20/0xd0
[ 14.410178][ C3] ? __pfx_stack_trace_save+0x10/0x10
[ 14.410186][ C3] ? __pfx___br_multicast_query_handle_vlan+0x10/0x10 [bridge]
[ 14.410241][ C3] br_dev_queue_push_xmit+0x115/0x250 [bridge]
[ 14.410274][ C3] ? __pfx_br_dev_queue_push_xmit+0x10/0x10 [bridge]
[ 14.410307][ C3] ? br_multicast_count+0x42/0x130 [bridge]
[ 14.410347][ C3] __br_multicast_send_query+0x3b7/0x950 [bridge]
[ 14.410392][ C3] ? __pfx___br_multicast_send_query+0x10/0x10 [bridge]
[ 14.410432][ C3] ? __lock_acquire+0xb9a/0x1680
[ 14.410444][ C3] ? br_multicast_send_query+0x228/0x440 [bridge]
[ 14.410479][ C3] br_multicast_send_query+0x228/0x440 [bridge]
[ 14.410518][ C3] ? __pfx_br_multicast_send_query+0x10/0x10 [bridge]
[ 14.410552][ C3] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 14.410589][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 14.410624][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 14.410631][ C3] ? do_raw_spin_lock+0x131/0x270
[ 14.410636][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 14.410640][ C3] ? lock_acquire+0x32/0xc0
[ 14.410643][ C3] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 14.410688][ C3] ? br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 14.410732][ C3] br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 14.410778][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 14.410830][ C3] call_timer_fn+0x13b/0x230
[ 14.410836][ C3] ? call_timer_fn+0xe8/0x230
[ 14.410840][ C3] ? call_timer_fn+0xe8/0x230
[ 14.410849][ C3] ? __pfx_call_timer_fn+0x10/0x10
[ 14.410855][ C3] ? hlock_class+0x4e/0x130
[ 14.410873][ C3] ? mark_held_locks+0x9e/0xe0
[ 14.410897][ C3] __run_timers+0x545/0x810
[ 14.410904][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 14.410983][ C3] ? __pfx___run_timers+0x10/0x10
[ 14.410988][ C3] ? clockevents_program_event+0xf6/0x300
[ 14.411007][ C3] ? do_raw_spin_lock+0x131/0x270
[ 14.411016][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 14.411023][ C3] ? lock_acquire+0x32/0xc0
[ 14.411028][ C3] ? run_timer_softirq+0xe6/0x1c0
[ 14.411046][ C3] run_timer_softirq+0xee/0x1c0
[ 14.411056][ C3] handle_softirqs+0x1f6/0x5c0
[ 14.411083][ C3] __irq_exit_rcu+0xc4/0x100
[ 14.411090][ C3] irq_exit_rcu+0xe/0x20
[ 14.411095][ C3] sysvec_apic_timer_interrupt+0x78/0x90
[ 14.411103][ C3]
[ 14.411105][ C3]
[ 14.411110][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 14.411118][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 14.411126][ 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 61 <74> 0e 5b 5d c3 cc cc cc cc e8 2f df ac fd eb dc 0f 1f 44 00 00 5b
[ 14.411131][ C3] RSP: 0018:ffffc900002af868 EFLAGS: 00000286
[ 14.411136][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff4407cc3
[ 14.411140][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9ef4b761
[ 14.411143][ C3] RBP: ffff888001040f40 R08: 0000000000000001 R09: fffffbfff4405be5
[ 14.411146][ C3] R10: ffffffffa202df2f R11: ffff888001d82300 R12: ffff8880091885e4
[ 14.411148][ C3] R13: 0000000000000000 R14: ffffc900002af8b8 R15: ffff88800b894064
[ 14.411169][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 14.411186][ C3] qlist_free_all+0x4c/0x120
[ 14.411201][ C3] kasan_quarantine_reduce+0x195/0x1e0
[ 14.411213][ C3] __kasan_slab_alloc+0x49/0x70
[ 14.411227][ C3] kmem_cache_alloc_node_noprof+0x110/0x360
[ 14.411236][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 14.411256][ C3] __alloc_skb+0x215/0x2e0
[ 14.411265][ C3] ? __pfx___alloc_skb+0x10/0x10
[ 14.411279][ C3] ? rtnl_prop_list_size+0x245/0x290
[ 14.411293][ C3] ? if_nlmsg_size+0x350/0x8c0
[ 14.411310][ C3] rtmsg_ifinfo_build_skb+0x79/0x230
[ 14.411329][ C3] rtmsg_ifinfo_event.part.0+0x2d/0x120
[ 14.411348][ C3] rtmsg_ifinfo+0x5b/0xa0
[ 14.411365][ C3] netdev_state_change+0x10f/0x120
[ 14.411373][ C3] ? __pfx_netdev_state_change+0x10/0x10
[ 14.411401][ C3] linkwatch_do_dev+0xd2/0x100
[ 14.411408][ C3] __linkwatch_run_queue+0x1df/0x650
[ 14.411422][ C3] ? __pfx___linkwatch_run_queue+0x10/0x10
[ 14.411434][ C3] ? lock_acquire+0x32/0xc0
[ 14.411453][ C3] linkwatch_event+0x40/0x60
[ 14.411458][ C3] process_one_work+0xe55/0x16d0
[ 14.411486][ C3] ? __pfx___lock_release+0x10/0x10
[ 14.411495][ C3] ? __pfx_process_one_work+0x10/0x10
[ 14.411521][ C3] ? assign_work+0x16c/0x240
[ 14.411540][ C3] worker_thread+0x58c/0xce0
[ 14.411560][ C3] ? __pfx_worker_thread+0x10/0x10
[ 14.411567][ C3] kthread+0x359/0x5d0
[ 14.411572][ C3] ? __pfx_kthread+0x10/0x10
[ 14.411581][ C3] ? __pfx_kthread+0x10/0x10
[ 14.411588][ C3] ret_from_fork+0x31/0x70
[ 14.411594][ C3] ? __pfx_kthread+0x10/0x10
[ 14.411597][ C3] ret_from_fork_asm+0x1a/0x30
[ 14.411619][ C3]
[ 14.486742][ T152] br0: port 2(veth2) entered blocking state
[ 14.487285][ T152] br0: port 2(veth2) entered forwarding state
[ 25.908660][ T332] GACT probability NOT on
[ 202.367919][ T1628] br0: port 2(veth2) entered disabled state
[ 202.448754][ T1629] br0: port 1(veth1) entered disabled state
[ 202.541210][ T1630] veth2: left allmulticast mode
[ 202.541459][ T1630] veth2: left promiscuous mode
[ 202.541814][ T1630] br0: port 2(veth2) entered disabled state
[ 202.543638][ T1630] veth1: left allmulticast mode
[ 202.543858][ T1630] veth1: left promiscuous mode
[ 202.544174][ T1630] br0: port 1(veth1) entered disabled state