[ 12.679193][ T290] 8021q: 802.1Q VLAN Support v1.8
[ 13.876416][ T305] br0: port 1(veth1) entered blocking state
[ 13.876833][ T305] br0: port 1(veth1) entered disabled state
[ 13.877223][ T305] veth1: entered allmulticast mode
[ 13.879296][ T305] veth1: entered promiscuous mode
[ 13.963586][ T307] br0: port 2(veth2) entered blocking state
[ 13.963859][ T307] br0: port 2(veth2) entered disabled state
[ 13.964120][ T307] veth2: entered allmulticast mode
[ 13.966652][ T307] veth2: entered promiscuous mode
[ 14.128470][ T57] br0: port 1(veth1) entered blocking state
[ 14.128881][ T57] br0: port 1(veth1) entered forwarding state
[ 14.130461][ C2]
[ 14.130737][ C2] =============================
[ 14.130972][ C2] WARNING: suspicious RCU usage
[ 14.131220][ C2] 6.14.0-rc6-virtme #1 Not tainted
[ 14.131464][ C2] -----------------------------
[ 14.131686][ C2] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[ 14.132055][ C2]
[ 14.132055][ C2] other info that might help us debug this:
[ 14.132055][ C2]
[ 14.132499][ C2]
[ 14.132499][ C2] rcu_scheduler_active = 2, debug_locks = 1
[ 14.132827][ C2] 6 locks held by kworker/u20:1/57:
[ 14.133065][ C2] #0: ffff8880010a9d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0
[ 14.133536][ C2] #1: ffffc900003dfd40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0
[ 14.133976][ C2] #2: ffffffff91ff0a08 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
[ 14.134378][ C2] #3: ffffc90000248d60 ((&pmctx->ip4_own_query.timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 14.134839][ C2] #4: ffff88800a813358 (&br->multicast_lock){+.-.}-{3:3}, at: br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 14.135372][ C2] #5: ffffffff9175b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[ 14.135744][ C2]
[ 14.135744][ C2] stack backtrace:
[ 14.136145][ C2] CPU: 2 UID: 0 PID: 57 Comm: kworker/u20:1 Not tainted 6.14.0-rc6-virtme #1
[ 14.136150][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 14.136152][ C2] Workqueue: events_unbound linkwatch_event
[ 14.136158][ C2] Call Trace:
[ 14.136163][ C2]
[ 14.136166][ C2] dump_stack_lvl+0xb0/0xd0
[ 14.136173][ C2] lockdep_rcu_suspicious+0x1ea/0x280
[ 14.136184][ C2] dev_hard_start_xmit+0x2fc/0x3f0
[ 14.136196][ C2] __dev_queue_xmit+0xfaf/0x18d0
[ 14.136206][ C2] ? __build_skb_around+0x23d/0x350
[ 14.136217][ C2] ? __pfx___dev_queue_xmit+0x10/0x10
[ 14.136219][ C2] ? __pfx___alloc_skb+0x10/0x10
[ 14.136225][ C2] ? stack_trace_save+0x20/0xd0
[ 14.136230][ C2] ? __pfx_stack_trace_save+0x10/0x10
[ 14.136238][ C2] ? __pfx___br_multicast_query_handle_vlan+0x10/0x10 [bridge]
[ 14.136293][ C2] br_dev_queue_push_xmit+0x115/0x250 [bridge]
[ 14.136326][ C2] ? __pfx_br_dev_queue_push_xmit+0x10/0x10 [bridge]
[ 14.136358][ C2] ? br_multicast_count+0x42/0x130 [bridge]
[ 14.136398][ C2] __br_multicast_send_query+0x3b7/0x950 [bridge]
[ 14.136443][ C2] ? __pfx___br_multicast_send_query+0x10/0x10 [bridge]
[ 14.136484][ C2] ? __lock_acquire+0xb9a/0x1680
[ 14.136495][ C2] ? br_multicast_send_query+0x228/0x440 [bridge]
[ 14.136529][ C2] br_multicast_send_query+0x228/0x440 [bridge]
[ 14.136568][ C2] ? __pfx_br_multicast_send_query+0x10/0x10 [bridge]
[ 14.136601][ C2] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 14.136638][ C2] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 14.136673][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 14.136679][ C2] ? do_raw_spin_lock+0x131/0x270
[ 14.136684][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 14.136687][ C2] ? lock_acquire+0x32/0xc0
[ 14.136690][ C2] ? br_multicast_port_query_expired+0x62/0x2c0 [bridge]
[ 14.136731][ C2] ? br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 14.136764][ C2] br_multicast_port_query_expired+0x230/0x2c0 [bridge]
[ 14.136801][ C2] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 14.136835][ C2] call_timer_fn+0x13b/0x230
[ 14.136838][ C2] ? call_timer_fn+0xe8/0x230
[ 14.136841][ C2] ? call_timer_fn+0xe8/0x230
[ 14.136845][ C2] ? __pfx_call_timer_fn+0x10/0x10
[ 14.136849][ C2] ? hlock_class+0x4e/0x130
[ 14.136858][ C2] ? mark_held_locks+0x9e/0xe0
[ 14.136870][ C2] __run_timers+0x545/0x810
[ 14.136874][ C2] ? __pfx_br_ip4_multicast_port_query_expired+0x10/0x10 [bridge]
[ 14.136916][ C2] ? __pfx___run_timers+0x10/0x10
[ 14.136918][ C2] ? clockevents_program_event+0xf6/0x300
[ 14.136928][ C2] ? do_raw_spin_lock+0x131/0x270
[ 14.136932][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 14.136936][ C2] ? lock_acquire+0x32/0xc0
[ 14.136939][ C2] ? run_timer_softirq+0xe6/0x1c0
[ 14.136950][ C2] run_timer_softirq+0xee/0x1c0
[ 14.136955][ C2] handle_softirqs+0x1f6/0x5c0
[ 14.136962][ C2] ? do_raw_spin_unlock+0x58/0x220
[ 14.136969][ C2] __irq_exit_rcu+0xc4/0x100
[ 14.136973][ C2] irq_exit_rcu+0xe/0x20
[ 14.136976][ C2] sysvec_apic_timer_interrupt+0x78/0x90
[ 14.136980][ C2]
[ 14.136981][ C2]
[ 14.136983][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 14.136988][ C2] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 14.136991][ C2] 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 6f <74> 0e 5b 5d c3 cc cc cc cc e8 2f df ac fd eb dc 0f 1f 44 00 00 5b
[ 14.136994][ C2] RSP: 0018:ffffc900003df780 EFLAGS: 00000282
[ 14.136997][ C2] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff27066b1
[ 14.136999][ C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9074b761
[ 14.137000][ C2] RBP: ffff888001040f40 R08: 0000000000000001 R09: fffffbfff2705be1
[ 14.137002][ C2] R10: ffffffff9382df0f R11: ffff8880054b45c0 R12: ffff888001040f40
[ 14.137004][ C2] R13: ffffea00002eae00 R14: ffff888001043240 R15: ffff88800babb800
[ 14.137016][ C2] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 14.137024][ C2] get_partial_node.part.0+0x1c2/0x3b0
[ 14.137039][ C2] ___slab_alloc+0x4b8/0xee0
[ 14.137042][ C2] ? __create_object+0x5e/0xb0
[ 14.137047][ C2] ? __alloc_skb+0x111/0x2e0
[ 14.137051][ C2] ? get_any_partial+0x201/0x260
[ 14.137061][ C2] ? mark_held_locks+0x9e/0xe0
[ 14.137072][ C2] ? __kmalloc_node_track_caller_noprof+0x26b/0x4a0
[ 14.137076][ C2] __kmalloc_node_track_caller_noprof+0x26b/0x4a0
[ 14.137080][ C2] ? __create_object+0x5e/0xb0
[ 14.137085][ C2] ? __alloc_skb+0x111/0x2e0
[ 14.137092][ C2] kmalloc_reserve+0xbc/0x240
[ 14.137101][ C2] __alloc_skb+0x111/0x2e0
[ 14.137105][ C2] ? __pfx___alloc_skb+0x10/0x10
[ 14.137113][ C2] ? rt6_sync_up+0xc5/0x150
[ 14.137118][ C2] ? __pfx_rt6_sync_up+0x10/0x10
[ 14.137126][ C2] inet6_ifinfo_notify+0x7b/0x120
[ 14.137134][ C2] addrconf_notify+0x5ab/0xd50
[ 14.137142][ C2] notifier_call_chain+0xcd/0x150
[ 14.137154][ C2] netdev_state_change+0xf5/0x120
[ 14.137158][ C2] ? __pfx_netdev_state_change+0x10/0x10
[ 14.137174][ C2] linkwatch_do_dev+0xd2/0x100
[ 14.137178][ C2] __linkwatch_run_queue+0x1df/0x650
[ 14.137185][ C2] ? __pfx___linkwatch_run_queue+0x10/0x10
[ 14.137192][ C2] ? lock_acquire+0x32/0xc0
[ 14.137202][ C2] linkwatch_event+0x40/0x60
[ 14.137204][ C2] process_one_work+0xe55/0x16d0
[ 14.137218][ C2] ? __pfx___lock_release+0x10/0x10
[ 14.137224][ C2] ? __pfx_process_one_work+0x10/0x10
[ 14.137237][ C2] ? assign_work+0x16c/0x240
[ 14.137247][ C2] worker_thread+0x58c/0xce0
[ 14.137261][ C2] ? __pfx_worker_thread+0x10/0x10
[ 14.137267][ C2] kthread+0x359/0x5d0
[ 14.137272][ C2] ? __pfx_kthread+0x10/0x10
[ 14.137281][ C2] ? __pfx_kthread+0x10/0x10
[ 14.137287][ C2] ret_from_fork+0x31/0x70
[ 14.137291][ C2] ? __pfx_kthread+0x10/0x10
[ 14.137294][ C2] ret_from_fork_asm+0x1a/0x30
[ 14.137314][ C2]
[ 14.236074][ T39] br0: port 2(veth2) entered blocking state
[ 14.236396][ T39] br0: port 2(veth2) entered forwarding state
[ 42.318589][ T378] GACT probability NOT on
[ 72.160984][ T595] br1: port 1(veth0) entered blocking state
[ 72.161268][ T595] br1: port 1(veth0) entered disabled state
[ 72.161510][ T595] veth0: entered allmulticast mode
[ 72.163361][ T595] veth0: entered promiscuous mode
[ 72.172649][ T595] ip (595) used greatest stack depth: 23128 bytes left
[ 72.240132][ T596] br1: port 1(veth0) entered blocking state
[ 72.240614][ T596] br1: port 1(veth0) entered forwarding state
[ 74.531855][ T601] veth0: left allmulticast mode
[ 74.532255][ T601] veth0: left promiscuous mode
[ 74.532767][ T601] br1: port 1(veth0) entered disabled state
[ 86.503901][ T717] br0: vlan filtering disabled, automatically disabling multicast vlan snooping
[ 87.012473][ T729] br0: port 2(veth2) entered disabled state
[ 87.107037][ T731] br0: port 1(veth1) entered disabled state
[ 87.186054][ T732] veth2: left allmulticast mode
[ 87.187952][ T732] veth2: left promiscuous mode
[ 87.188864][ T732] br0: port 2(veth2) entered disabled state
[ 87.192048][ T732] veth1: left allmulticast mode
[ 87.192421][ T732] veth1: left promiscuous mode
[ 87.192937][ T732] br0: port 1(veth1) entered disabled state