[ 10.624044][ T251] ip (251) used greatest stack depth: 23296 bytes left
[ 12.687696][ T290] 8021q: 802.1Q VLAN Support v1.8
[ 14.032763][ T306] br0: port 1(veth1) entered blocking state
[ 14.033300][ T306] br0: port 1(veth1) entered disabled state
[ 14.033837][ T306] veth1: entered allmulticast mode
[ 14.037350][ T306] veth1: entered promiscuous mode
[ 14.123068][ T308] br0: port 2(veth2) entered blocking state
[ 14.124365][ T308] br0: port 2(veth2) entered disabled state
[ 14.124660][ T308] veth2: entered allmulticast mode
[ 14.126687][ T308] veth2: entered promiscuous mode
[ 14.317653][ T41] br0: port 1(veth1) entered blocking state
[ 14.318277][ T41] br0: port 1(veth1) entered forwarding state
[ 14.319667][ C3]
[ 14.319912][ C3] =============================
[ 14.320208][ C3] WARNING: suspicious RCU usage
[ 14.320431][ C3] 6.14.0-rc6-virtme #1 Not tainted
[ 14.320632][ C3] -----------------------------
[ 14.320860][ C3] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[ 14.321211][ C3]
[ 14.321211][ C3] other info that might help us debug this:
[ 14.321211][ C3]
[ 14.321594][ C3]
[ 14.321594][ C3] rcu_scheduler_active = 2, debug_locks = 1
[ 14.321881][ C3] 6 locks held by kworker/u20:0/41:
[ 14.322081][ C3] #0: ffff8880010a9d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0
[ 14.322504][ C3] #1: ffffc900002dfd40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0
[ 14.322932][ C3] #2: ffffffffa0df0a08 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
[ 14.323297][ C3] #3: ffffc900002a0d60 ((&pmctx->ip4_own_query.timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 14.323700][ C3] #4: ffff88800f5bb358 (&br->multicast_lock){+.-.}-{3:3}, at: br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 14.324189][ C3] #5: ffffffffa055b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[ 14.324537][ C3]
[ 14.324537][ C3] stack backtrace:
[ 14.324784][ C3] CPU: 3 UID: 0 PID: 41 Comm: kworker/u20:0 Not tainted 6.14.0-rc6-virtme #1
[ 14.324788][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 14.324791][ C3] Workqueue: events_unbound linkwatch_event
[ 14.324797][ C3] Call Trace:
[ 14.324799][ C3]
[ 14.324802][ C3] dump_stack_lvl+0xb0/0xd0
[ 14.324811][ C3] lockdep_rcu_suspicious+0x1ea/0x280
[ 14.324823][ C3] dev_hard_start_xmit+0x2fc/0x3f0
[ 14.324834][ C3] __dev_queue_xmit+0xfaf/0x18d0
[ 14.324845][ C3] ? __build_skb_around+0x23d/0x350
[ 14.324856][ C3] ? __pfx___dev_queue_xmit+0x10/0x10
[ 14.324859][ C3] ? __pfx___alloc_skb+0x10/0x10
[ 14.324865][ C3] ? stack_trace_save+0x20/0xd0
[ 14.324872][ C3] ? __pfx_stack_trace_save+0x10/0x10
[ 14.324880][ C3] ? __pfx___br_multicast_query_handle_vlan+0x10/0x10 [bridge]
[ 14.324932][ C3] br_dev_queue_push_xmit+0x115/0x250 [bridge]
[ 14.324964][ C3] ? __pfx_br_dev_queue_push_xmit+0x10/0x10 [bridge]
[ 14.324997][ C3] ? br_multicast_count+0x42/0x130 [bridge]
[ 14.325036][ C3] __br_multicast_send_query+0x3b7/0x950 [bridge]
[ 14.325082][ C3] ? __pfx___br_multicast_send_query+0x10/0x10 [bridge]
[ 14.325122][ C3] ? __lock_acquire+0xb9a/0x1680
[ 14.325136][ C3] ? br_multicast_send_query+0x228/0x440 [bridge]
[ 14.325170][ C3] br_multicast_send_query+0x228/0x440 [bridge]
[ 14.325209][ C3] ? __pfx_br_multicast_send_query+0x10/0x10 [bridge]
[ 14.325242][ C3] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 14.325279][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 14.325313][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 14.325320][ C3] ? do_raw_spin_lock+0x131/0x270
[ 14.325325][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 14.325329][ C3] ? lock_acquire+0x32/0xc0
[ 14.325332][ C3] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 14.325372][ C3] ? br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 14.325406][ C3] br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 14.325442][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 14.325476][ C3] call_timer_fn+0x13b/0x230
[ 14.325480][ C3] ? call_timer_fn+0xe8/0x230
[ 14.325483][ C3] ? call_timer_fn+0xe8/0x230
[ 14.325487][ C3] ? __pfx_call_timer_fn+0x10/0x10
[ 14.325491][ C3] ? hlock_class+0x4e/0x130
[ 14.325500][ C3] ? mark_held_locks+0x9e/0xe0
[ 14.325512][ C3] __run_timers+0x545/0x810
[ 14.325516][ C3] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 14.325558][ C3] ? __pfx___run_timers+0x10/0x10
[ 14.325561][ C3] ? clockevents_program_event+0xf6/0x300
[ 14.325571][ C3] ? do_raw_spin_lock+0x131/0x270
[ 14.325575][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 14.325579][ C3] ? lock_acquire+0x32/0xc0
[ 14.325582][ C3] ? run_timer_softirq+0xe6/0x1c0
[ 14.325593][ C3] run_timer_softirq+0xee/0x1c0
[ 14.325598][ C3] handle_softirqs+0x1f6/0x5c0
[ 14.325612][ C3] __irq_exit_rcu+0xc4/0x100
[ 14.325616][ C3] irq_exit_rcu+0xe/0x20
[ 14.325618][ C3] sysvec_apic_timer_interrupt+0x78/0x90
[ 14.325623][ C3]
[ 14.325624][ C3]
[ 14.325627][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 14.325632][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 14.325636][ 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 af 60 <74> 0e 5b 5d c3 cc cc cc cc e8 2f df ac fd eb dc 0f 1f 44 00 00 5b
[ 14.325638][ C3] RSP: 0000:ffffc900002df760 EFLAGS: 00000282
[ 14.325642][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff44c66b1
[ 14.325644][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9f54b761
[ 14.325645][ C3] RBP: ffff888001041080 R08: 0000000000000001 R09: fffffbfff44c5be1
[ 14.325647][ C3] R10: ffffffffa262df0f R11: ffff888001da2300 R12: ffff888001041080
[ 14.325648][ C3] R13: ffffea000007fa00 R14: ffff8880010433c0 R15: ffff888001fe9000
[ 14.325661][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 14.325669][ C3] get_partial_node.part.0+0x1c2/0x3b0
[ 14.325686][ C3] ___slab_alloc+0x4b8/0xee0
[ 14.325689][ C3] ? __lock_release+0x103/0x460
[ 14.325692][ C3] ? __alloc_skb+0x111/0x2e0
[ 14.325696][ C3] ? get_any_partial+0x201/0x260
[ 14.325715][ C3] ? __kmalloc_node_track_caller_noprof+0x26b/0x4a0
[ 14.325720][ C3] __kmalloc_node_track_caller_noprof+0x26b/0x4a0
[ 14.325723][ C3] ? __create_object+0x5e/0xb0
[ 14.325731][ C3] ? __alloc_skb+0x111/0x2e0
[ 14.325738][ C3] kmalloc_reserve+0xbc/0x240
[ 14.325747][ C3] __alloc_skb+0x111/0x2e0
[ 14.325751][ C3] ? __pfx___alloc_skb+0x10/0x10
[ 14.325759][ C3] ? rtnl_prop_list_size+0x245/0x290
[ 14.325767][ C3] ? if_nlmsg_size+0x350/0x8c0
[ 14.325776][ C3] rtmsg_ifinfo_build_skb+0x79/0x230
[ 14.325785][ C3] rtmsg_ifinfo_event.part.0+0x2d/0x120
[ 14.325794][ C3] rtmsg_ifinfo+0x5b/0xa0
[ 14.325803][ C3] netdev_state_change+0x10f/0x120
[ 14.325807][ C3] ? __pfx_netdev_state_change+0x10/0x10
[ 14.325822][ C3] linkwatch_do_dev+0xd2/0x100
[ 14.325827][ C3] __linkwatch_run_queue+0x1df/0x650
[ 14.325834][ C3] ? __pfx___linkwatch_run_queue+0x10/0x10
[ 14.325841][ C3] ? lock_acquire+0x32/0xc0
[ 14.325851][ C3] linkwatch_event+0x40/0x60
[ 14.325853][ C3] process_one_work+0xe55/0x16d0
[ 14.325867][ C3] ? __pfx___lock_release+0x10/0x10
[ 14.325872][ C3] ? __pfx_process_one_work+0x10/0x10
[ 14.325885][ C3] ? assign_work+0x16c/0x240
[ 14.325898][ C3] worker_thread+0x58c/0xce0
[ 14.325912][ C3] ? __pfx_worker_thread+0x10/0x10
[ 14.325918][ C3] kthread+0x359/0x5d0
[ 14.325923][ C3] ? __pfx_kthread+0x10/0x10
[ 14.325932][ C3] ? __pfx_kthread+0x10/0x10
[ 14.325938][ C3] ret_from_fork+0x31/0x70
[ 14.325943][ C3] ? __pfx_kthread+0x10/0x10
[ 14.325947][ C3] ret_from_fork_asm+0x1a/0x30
[ 14.325967][ C3]
[ 14.440240][ T40] br0: port 2(veth2) entered blocking state
[ 14.440567][ T40] br0: port 2(veth2) entered forwarding state
[ 42.788507][ T380] GACT probability NOT on
[ 73.412209][ T595] br1: port 1(veth0) entered blocking state
[ 73.412511][ T595] br1: port 1(veth0) entered disabled state
[ 73.412788][ T595] veth0: entered allmulticast mode
[ 73.414692][ T595] veth0: entered promiscuous mode
[ 73.428329][ T595] ip (595) used greatest stack depth: 23128 bytes left
[ 73.502541][ T597] br1: port 1(veth0) entered blocking state
[ 73.503095][ T597] br1: port 1(veth0) entered forwarding state
[ 75.791207][ T602] veth0: left allmulticast mode
[ 75.791489][ T602] veth0: left promiscuous mode
[ 75.791834][ T602] br1: port 1(veth0) entered disabled state
[ 88.120821][ T718] br0: vlan filtering disabled, automatically disabling multicast vlan snooping
[ 88.626786][ T730] br0: port 2(veth2) entered disabled state
[ 88.715672][ T731] br0: port 1(veth1) entered disabled state
[ 88.799327][ T732] veth2: left allmulticast mode
[ 88.799680][ T732] veth2: left promiscuous mode
[ 88.800014][ T732] br0: port 2(veth2) entered disabled state
[ 88.801678][ T732] veth1: left allmulticast mode
[ 88.801903][ T732] veth1: left promiscuous mode
[ 88.802237][ T732] br0: port 1(veth1) entered disabled state