[ 409.283447][ T9600] br1: port 1(vx1) entered blocking state
[ 409.283735][ T9600] br1: port 1(vx1) entered disabled state
[ 409.284015][ T9600] vx1: entered allmulticast mode
[ 409.288537][ T9600] vx1: entered promiscuous mode
[ 409.289751][ T9600] br1: port 1(vx1) entered blocking state
[ 409.289911][ T9600] br1: port 1(vx1) entered forwarding state
[ 409.322888][ T9601] br1: port 2(veth1) entered blocking state
[ 409.323196][ T9601] br1: port 2(veth1) entered disabled state
[ 409.323487][ T9601] veth1: entered allmulticast mode
[ 409.326575][ T9601] veth1: entered promiscuous mode
[ 409.357740][ T188] br1: port 2(veth1) entered blocking state
[ 409.358079][ T188] br1: port 2(veth1) entered forwarding state
[ 409.413731][ T9604] br1: port 3(veth2) entered blocking state
[ 409.413961][ T9604] br1: port 3(veth2) entered disabled state
[ 409.414228][ T9604] veth2: entered allmulticast mode
[ 409.415800][ T9604] veth2: entered promiscuous mode
[ 409.443295][ T36] br1: port 3(veth2) entered blocking state
[ 409.443474][ T36] br1: port 3(veth2) entered forwarding state
[ 410.508708][ T9659] br2: port 1(w1) entered blocking state
[ 410.508932][ T9659] br2: port 1(w1) entered disabled state
[ 410.515593][ T9659] w1: entered allmulticast mode
[ 410.517166][ T9659] w1: entered promiscuous mode
[ 410.539029][ T9660] br2: port 1(w1) entered blocking state
[ 410.539201][ T9660] br2: port 1(w1) entered forwarding state
[ 410.670625][ T9665] br2: port 2(vx2) entered blocking state
[ 410.670827][ T9665] br2: port 2(vx2) entered disabled state
[ 410.671045][ T9665] vx2: entered allmulticast mode
[ 410.672826][ T9665] vx2: entered promiscuous mode
[ 410.673402][ T9665] br2: port 2(vx2) entered blocking state
[ 410.673597][ T9665] br2: port 2(vx2) entered forwarding state
[ 411.437779][ T9697] br2: port 1(w1) entered blocking state
[ 411.437970][ T9697] br2: port 1(w1) entered disabled state
[ 411.438131][ T9697] w1: entered allmulticast mode
[ 411.440322][ T9697] w1: entered promiscuous mode
[ 411.464768][ T9698] br2: port 1(w1) entered blocking state
[ 411.464929][ T9698] br2: port 1(w1) entered forwarding state
[ 411.585140][ T9703] br2: port 2(vx2) entered blocking state
[ 411.585300][ T9703] br2: port 2(vx2) entered disabled state
[ 411.585449][ T9703] vx2: entered allmulticast mode
[ 411.586873][ T9703] vx2: entered promiscuous mode
[ 411.587437][ T9703] br2: port 2(vx2) entered blocking state
[ 411.587576][ T9703] br2: port 2(vx2) entered forwarding state
[ 413.069895][ C3]
[ 413.070351][ C3] =============================
[ 413.070514][ C3] WARNING: suspicious RCU usage
[ 413.070670][ C3] 7.2.0-rc2-virtme #1 Not tainted
[ 413.070821][ C3] -----------------------------
[ 413.070992][ C3] drivers/net/vxlan/vxlan_core.c:872 suspicious rcu_dereference_protected() usage!
[ 413.071255][ C3]
[ 413.071255][ C3] other info that might help us debug this:
[ 413.071255][ C3]
[ 413.071549][ C3]
[ 413.071549][ C3] rcu_scheduler_active = 2, debug_locks = 1
[ 413.071780][ C3] 3 locks held by swapper/3/0:
[ 413.071931][ C3] #0: ffffffffb817dd40 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490
[ 413.072222][ C3] #1: ffffffffb817dd40 (rcu_read_lock){....}-{1:3}, at: ip6_input+0xa1/0x570
[ 413.072488][ C3] #2: ff11000013462f68 (&vxlan->hash_lock){+.-.}-{3:3}, at: vxlan_snoop+0x5dc/0x9a0 [vxlan]
[ 413.072801][ C3]
[ 413.072801][ C3] stack backtrace:
[ 413.072993][ C3] CPU: 3 UID: 0 PID: 0 Comm: swapper/3 Not tainted 7.2.0-rc2-virtme #1 PREEMPT(full)
[ 413.072996][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 413.072998][ C3] Call Trace:
[ 413.073000][ C3]
[ 413.073002][ C3] dump_stack_lvl+0x6f/0xa0
[ 413.073008][ C3] lockdep_rcu_suspicious.cold+0x37/0x89
[ 413.073013][ C3] vxlan_fdb_create+0xe1b/0x1a70 [vxlan]
[ 413.073019][ C3] ? vxlan_find_mac_rcu+0x578/0x6b0 [vxlan]
[ 413.073025][ C3] ? lock_acquire.part.0+0xbc/0x260
[ 413.073029][ C3] ? find_held_lock+0x2b/0x80
[ 413.073032][ C3] ? vxlan_open+0x340/0x340 [vxlan]
[ 413.073037][ C3] ? __lock_release.isra.0+0x6b/0x1a0
[ 413.073042][ C3] vxlan_fdb_update+0x208/0x3e0 [vxlan]
[ 413.073048][ C3] ? vxlan_fdb_create+0x1a70/0x1a70 [vxlan]
[ 413.073052][ C3] ? lock_acquire.part.0+0xbc/0x260
[ 413.073054][ C3] ? do_raw_spin_lock+0x131/0x280
[ 413.073061][ C3] vxlan_snoop+0x6ba/0x9a0 [vxlan]
[ 413.073069][ C3] vxlan_rcv+0x172e/0x2c20 [vxlan]
[ 413.073078][ C3] ? encap_bypass_if_local+0x290/0x290 [vxlan]
[ 413.073082][ C3] ? __udp6_lib_lookup+0x6c3/0x9a0
[ 413.073088][ C3] ? __lock_release.isra.0+0x6b/0x1a0
[ 413.073092][ C3] ? encap_bypass_if_local+0x290/0x290 [vxlan]
[ 413.073096][ C3] ? udpv6_queue_rcv_one_skb+0x653/0xbf0
[ 413.073099][ C3] udpv6_queue_rcv_one_skb+0x653/0xbf0
[ 413.073102][ C3] udp6_unicast_rcv_skb+0x2b3/0x390
[ 413.073106][ C3] ip6_protocol_deliver_rcu+0x15c/0x1480
[ 413.073113][ C3] ip6_input_finish+0x196/0x590
[ 413.073115][ C3] ip6_input+0x130/0x570
[ 413.073117][ C3] ? ip6_input_finish+0x590/0x590
[ 413.073121][ C3] ? ip6_rcv_core+0xded/0x1be0
[ 413.073125][ C3] ipv6_rcv+0x3c1/0x5a0
[ 413.073128][ C3] ? ip6_rcv_core+0x1be0/0x1be0
[ 413.073131][ C3] ? mark_usage+0x61/0x170
[ 413.073133][ C3] ? __lock_acquire+0x518/0xc20
[ 413.073137][ C3] ? process_backlog+0x561/0x1490
[ 413.073139][ C3] __netif_receive_skb_one_core+0xfc/0x180
[ 413.073141][ C3] ? lock_acquire.part.0+0xbc/0x260
[ 413.073144][ C3] ? __netif_receive_skb_list_core+0x9e0/0x9e0
[ 413.073146][ C3] ? rcu_is_watching+0x15/0xd0
[ 413.073152][ C3] process_backlog+0x2bc/0x1490
[ 413.073157][ C3] __napi_poll+0xa7/0x3b0
[ 413.073160][ C3] net_rx_action+0x513/0xf50
[ 413.073165][ C3] ? __napi_poll+0x3b0/0x3b0
[ 413.073169][ C3] ? find_held_lock+0x2b/0x80
[ 413.073175][ C3] ? _raw_spin_unlock_irq+0x33/0x50
[ 413.073178][ C3] ? run_timer_softirq+0xf8/0x160
[ 413.073180][ C3] ? clockevents_program_event+0x307/0x7e0
[ 413.073184][ C3] ? rcu_is_watching+0x15/0xd0
[ 413.073187][ C3] handle_softirqs+0x1d8/0x8f0
[ 413.073193][ C3] ? _local_bh_enable+0xd0/0xd0
[ 413.073197][ C3] __irq_exit_rcu+0x103/0x1c0
[ 413.073200][ C3] irq_exit_rcu+0xe/0x30
[ 413.073202][ C3] sysvec_apic_timer_interrupt+0x9d/0xe0
[ 413.073205][ C3]
[ 413.073205][ C3]
[ 413.073206][ C3] ? lockdep_hardirqs_on+0x8c/0x130
[ 413.073208][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 413.073210][ C3] RIP: 0010:pv_native_safe_halt+0xf/0x10
[ 413.073213][ C3] Code: 48 8b 3d 44 91 fb 01 e8 1f 00 00 00 48 2b 05 08 42 9b 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 63 5d 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
[ 413.073215][ C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[ 413.073217][ C3] RAX: 0000000000e89709 RBX: ff11000001bd8040 RCX: ffffffffb4ee3c17
[ 413.073219][ C3] RDX: ff11000001bd8040 RSI: ffffffffb7c17342 RDI: ffffffffb767a960
[ 413.073220][ C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 413.073220][ C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[ 413.073221][ C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[ 413.073225][ C3] ? cpuidle_idle_call.constprop.0+0x237/0x410
[ 413.073230][ C3] default_idle+0x9/0x10
[ 413.073232][ C3] default_idle_call+0x6e/0xb0
[ 413.073233][ C3] cpuidle_idle_call.constprop.0+0x237/0x410
[ 413.073236][ C3] ? arch_cpu_idle_exit+0x40/0x40
[ 413.073238][ C3] ? mark_tsc_async_resets+0x30/0x30
[ 413.073242][ C3] ? rcu_is_watching+0x15/0xd0
[ 413.073245][ C3] do_idle+0xd8/0x180
[ 413.073247][ C3] cpu_startup_entry+0x53/0x70
[ 413.073250][ C3] start_secondary+0x204/0x2b0
[ 413.073252][ C3] ? set_cpu_sibling_map+0x2130/0x2130
[ 413.073256][ C3] common_startup_64+0x13e/0x148
[ 413.073265][ C3]
[ 462.261948][ T12] vx2: left allmulticast mode
[ 462.263827][ T12] vx2: left promiscuous mode
[ 462.264220][ T12] br2: port 2(vx2) entered disabled state
[ 462.268371][ T12] w1: left allmulticast mode
[ 462.268579][ T12] w1: left promiscuous mode
[ 462.268903][ T12] br2: port 1(w1) entered disabled state
[ 462.416186][ T12] vx2: left allmulticast mode
[ 462.416351][ T12] vx2: left promiscuous mode
[ 462.416562][ T12] br2: port 2(vx2) entered disabled state
[ 462.418421][ T12] w1: left allmulticast mode
[ 462.418561][ T12] w1: left promiscuous mode
[ 462.418758][ T12] br2: port 1(w1) entered disabled state
[ 463.098932][ T9913] br1: port 3(veth2) entered disabled state
[ 463.144054][ T9914] veth2: left allmulticast mode
[ 463.144352][ T9914] veth2: left promiscuous mode
[ 463.144575][ T9914] br1: port 3(veth2) entered disabled state
[ 463.150463][ T9914] ip (9914) used greatest stack depth: 23688 bytes left
[ 463.213230][ T9916] br1: port 2(veth1) entered disabled state
[ 463.248280][ T9917] veth1: left allmulticast mode
[ 463.248505][ T9917] veth1: left promiscuous mode
[ 463.248845][ T9917] br1: port 2(veth1) entered disabled state
[ 463.278816][ T9918] vx1: left allmulticast mode
[ 463.278968][ T9918] vx1: left promiscuous mode
[ 463.279616][ T9918] br1: port 1(vx1) entered disabled state