[ 377.020808][ T4446] br1: port 1(vx100) entered blocking state
[ 377.021057][ T4446] br1: port 1(vx100) entered disabled state
[ 377.021285][ T4446] vx100: entered allmulticast mode
[ 377.022711][ T4446] vx100: entered promiscuous mode
[ 377.023088][ T4446] br1: port 1(vx100) entered blocking state
[ 377.023295][ T4446] br1: port 1(vx100) entered forwarding state
[ 377.073531][ T4448] br1: port 2(veth1) entered blocking state
[ 377.073761][ T4448] br1: port 2(veth1) entered disabled state
[ 377.073984][ T4448] veth1: entered allmulticast mode
[ 377.075413][ T4448] veth1: entered promiscuous mode
[ 377.096745][ T48] br1: port 2(veth1) entered blocking state
[ 377.096927][ T48] br1: port 2(veth1) entered forwarding state
[ 377.153821][ T4451] br1: port 3(veth2) entered blocking state
[ 377.154046][ T4451] br1: port 3(veth2) entered disabled state
[ 377.154278][ T4451] veth2: entered allmulticast mode
[ 377.155762][ T4451] veth2: entered promiscuous mode
[ 377.179274][ T3693] br1: port 3(veth2) entered blocking state
[ 377.179681][ T3693] br1: port 3(veth2) entered forwarding state
[ 378.257342][ T4505] br2: port 1(w1) entered blocking state
[ 378.257561][ T4505] br2: port 1(w1) entered disabled state
[ 378.257774][ T4505] w1: entered allmulticast mode
[ 378.259230][ T4505] w1: entered promiscuous mode
[ 378.285705][ T4506] br2: port 1(w1) entered blocking state
[ 378.285863][ T4506] br2: port 1(w1) entered forwarding state
[ 378.421864][ T4512] br2: port 2(vx100) entered blocking state
[ 378.422097][ T4512] br2: port 2(vx100) entered disabled state
[ 378.422328][ T4512] vx100: entered allmulticast mode
[ 378.423785][ T4512] vx100: entered promiscuous mode
[ 378.424152][ T4512] br2: port 2(vx100) entered blocking state
[ 378.424359][ T4512] br2: port 2(vx100) entered forwarding state
[ 379.305088][ T4552] br2: port 1(w1) entered blocking state
[ 379.305261][ T4552] br2: port 1(w1) entered disabled state
[ 379.305406][ T4552] w1: entered allmulticast mode
[ 379.306769][ T4552] w1: entered promiscuous mode
[ 379.327758][ T4553] br2: port 1(w1) entered blocking state
[ 379.327968][ T4553] br2: port 1(w1) entered forwarding state
[ 379.481671][ T4559] br2: port 2(vx100) entered blocking state
[ 379.481868][ T4559] br2: port 2(vx100) entered disabled state
[ 379.482044][ T4559] vx100: entered allmulticast mode
[ 379.483550][ T4559] vx100: entered promiscuous mode
[ 379.483890][ T4559] br2: port 2(vx100) entered blocking state
[ 379.484055][ T4559] br2: port 2(vx100) entered forwarding state
[ 380.966300][ C3]
[ 380.966554][ C3] =============================
[ 380.966919][ C3] WARNING: suspicious RCU usage
[ 380.967084][ C3] 7.2.0-rc1-virtme #1 Not tainted
[ 380.967232][ C3] -----------------------------
[ 380.967374][ C3] drivers/net/vxlan/vxlan_core.c:872 suspicious rcu_dereference_protected() usage!
[ 380.967639][ C3]
[ 380.967639][ C3] other info that might help us debug this:
[ 380.967639][ C3]
[ 380.967930][ C3]
[ 380.967930][ C3] rcu_scheduler_active = 2, debug_locks = 1
[ 380.968144][ C3] 3 locks held by swapper/3/0:
[ 380.968290][ C3] #0: ffffffffaaf7de40 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490
[ 380.968562][ C3] #1: ffffffffaaf7de40 (rcu_read_lock){....}-{1:3}, at: ip6_input+0xa1/0x570
[ 380.968822][ C3] #2: ff110000175a2f68 (&vxlan->hash_lock){+.-.}-{3:3}, at: vxlan_snoop+0x5dc/0x9a0 [vxlan]
[ 380.969120][ C3]
[ 380.969120][ C3] stack backtrace:
[ 380.969301][ C3] CPU: 3 UID: 0 PID: 0 Comm: swapper/3 Not tainted 7.2.0-rc1-virtme #1 PREEMPT(full)
[ 380.969303][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 380.969305][ C3] Call Trace:
[ 380.969307][ C3]
[ 380.969309][ C3] dump_stack_lvl+0x6f/0xa0
[ 380.969315][ C3] lockdep_rcu_suspicious.cold+0x37/0x89
[ 380.969320][ C3] vxlan_fdb_create+0xe1b/0x1a70 [vxlan]
[ 380.969325][ C3] ? vxlan_find_mac_rcu+0x578/0x6b0 [vxlan]
[ 380.969331][ C3] ? lock_acquire.part.0+0xbc/0x260
[ 380.969335][ C3] ? find_held_lock+0x2b/0x80
[ 380.969339][ C3] ? vxlan_open+0x340/0x340 [vxlan]
[ 380.969343][ C3] ? __lock_release.isra.0+0x6b/0x1a0
[ 380.969347][ C3] vxlan_fdb_update+0x208/0x3e0 [vxlan]
[ 380.969354][ C3] ? vxlan_fdb_create+0x1a70/0x1a70 [vxlan]
[ 380.969357][ C3] ? lock_acquire.part.0+0xbc/0x260
[ 380.969360][ C3] ? do_raw_spin_lock+0x131/0x280
[ 380.969364][ C3] vxlan_snoop+0x6ba/0x9a0 [vxlan]
[ 380.969372][ C3] vxlan_rcv+0x172e/0x2c20 [vxlan]
[ 380.969380][ C3] ? encap_bypass_if_local+0x290/0x290 [vxlan]
[ 380.969384][ C3] ? __udp6_lib_lookup+0x6c3/0x9a0
[ 380.969391][ C3] ? __lock_release.isra.0+0x6b/0x1a0
[ 380.969394][ C3] ? encap_bypass_if_local+0x290/0x290 [vxlan]
[ 380.969398][ C3] ? udpv6_queue_rcv_one_skb+0x653/0xbf0
[ 380.969401][ C3] udpv6_queue_rcv_one_skb+0x653/0xbf0
[ 380.969404][ C3] udp6_unicast_rcv_skb+0x2b3/0x390
[ 380.969408][ C3] ip6_protocol_deliver_rcu+0x15c/0x1480
[ 380.969414][ C3] ip6_input_finish+0x196/0x590
[ 380.969416][ C3] ip6_input+0x130/0x570
[ 380.969419][ C3] ? ip6_input_finish+0x590/0x590
[ 380.969422][ C3] ? ip6_rcv_core+0xded/0x1be0
[ 380.969426][ C3] ipv6_rcv+0x3c1/0x5a0
[ 380.969428][ C3] ? ip6_rcv_core+0x1be0/0x1be0
[ 380.969431][ C3] ? mark_usage+0x61/0x170
[ 380.969434][ C3] ? __lock_acquire+0x518/0xc20
[ 380.969437][ C3] ? process_backlog+0x561/0x1490
[ 380.969439][ C3] __netif_receive_skb_one_core+0xfc/0x180
[ 380.969441][ C3] ? lock_acquire.part.0+0xbc/0x260
[ 380.969444][ C3] ? __netif_receive_skb_list_core+0x9e0/0x9e0
[ 380.969446][ C3] ? rcu_is_watching+0x15/0xd0
[ 380.969451][ C3] process_backlog+0x2bc/0x1490
[ 380.969456][ C3] __napi_poll+0xa7/0x3b0
[ 380.969459][ C3] net_rx_action+0x513/0xf50
[ 380.969464][ C3] ? __napi_poll+0x3b0/0x3b0
[ 380.969466][ C3] ? __lock_release.isra.0+0x6b/0x1a0
[ 380.969470][ C3] ? sched_balance_softirq+0x29c/0x320
[ 380.969477][ C3] ? clockevents_program_event+0x307/0x7e0
[ 380.969480][ C3] ? rcu_is_watching+0x15/0xd0
[ 380.969483][ C3] handle_softirqs+0x1d8/0x8f0
[ 380.969489][ C3] ? _local_bh_enable+0xd0/0xd0
[ 380.969493][ C3] __irq_exit_rcu+0x103/0x1c0
[ 380.969495][ C3] irq_exit_rcu+0xe/0x30
[ 380.969497][ C3] sysvec_apic_timer_interrupt+0x9d/0xe0
[ 380.969500][ C3]
[ 380.969501][ C3]
[ 380.969502][ C3] ? lockdep_hardirqs_on+0x8c/0x130
[ 380.969503][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 380.969506][ C3] RIP: 0010:pv_native_safe_halt+0xf/0x10
[ 380.969508][ C3] Code: 48 8b 3d 44 a1 fb 01 e8 1f 00 00 00 48 2b 05 08 62 9b 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 43 7d 19 00 fb f4 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
[ 380.969510][ C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[ 380.969512][ C3] RAX: 0000000000ad6629 RBX: ff11000001bd8040 RCX: ffffffffa7ce3d17
[ 380.969513][ C3] RDX: ff11000001bd8040 RSI: ffffffffaaa16f14 RDI: ffffffffaa47a8e0
[ 380.969514][ C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 380.969515][ C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[ 380.969516][ C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[ 380.969519][ C3] ? cpuidle_idle_call.constprop.0+0x237/0x410
[ 380.969523][ C3] default_idle+0x9/0x10
[ 380.969525][ C3] default_idle_call+0x6e/0xb0
[ 380.969527][ C3] cpuidle_idle_call.constprop.0+0x237/0x410
[ 380.969529][ C3] ? arch_cpu_idle_exit+0x40/0x40
[ 380.969532][ C3] ? mark_tsc_async_resets+0x30/0x30
[ 380.969540][ C3] ? rcu_is_watching+0x15/0xd0
[ 380.969543][ C3] do_idle+0xd8/0x180
[ 380.969545][ C3] cpu_startup_entry+0x53/0x70
[ 380.969547][ C3] start_secondary+0x204/0x2b0
[ 380.969549][ C3] ? set_cpu_sibling_map+0x2130/0x2130
[ 380.969553][ C3] common_startup_64+0x13e/0x148
[ 380.969562][ C3]
[ 388.752296][ T12] vx100: left allmulticast mode
[ 388.752515][ T12] vx100: left promiscuous mode
[ 388.752978][ T12] br2: port 2(vx100) entered disabled state
[ 388.755751][ T12] w1: left allmulticast mode
[ 388.755884][ T12] w1: left promiscuous mode
[ 388.756151][ T12] br2: port 1(w1) entered disabled state
[ 388.887291][ T12] vx100: left allmulticast mode
[ 388.887457][ T12] vx100: left promiscuous mode
[ 388.887682][ T12] br2: port 2(vx100) entered disabled state
[ 388.893318][ T12] w1: left allmulticast mode
[ 388.893465][ T12] w1: left promiscuous mode
[ 388.893771][ T12] br2: port 1(w1) entered disabled state
[ 389.449690][ T4691] br1: port 3(veth2) entered disabled state
[ 389.477629][ T4692] veth2: left allmulticast mode
[ 389.477841][ T4692] veth2: left promiscuous mode
[ 389.478105][ T4692] br1: port 3(veth2) entered disabled state
[ 389.531916][ T4694] br1: port 2(veth1) entered disabled state
[ 389.556906][ T4696] veth1: left allmulticast mode
[ 389.557101][ T4696] veth1: left promiscuous mode
[ 389.557363][ T4696] br1: port 2(veth1) entered disabled state
[ 389.585079][ T4697] vx100: left allmulticast mode
[ 389.585240][ T4697] vx100: left promiscuous mode
[ 389.585459][ T4697] br1: port 1(vx100) entered disabled state