[ 8.708765][ T185] ip (185) used greatest stack depth: 23784 bytes left
[ 9.809600][ T226] 8021q: 802.1Q VLAN Support v1.8
[ 10.946522][ T272] br1: port 1(vx10) entered blocking state
[ 10.946778][ T272] br1: port 1(vx10) entered disabled state
[ 10.946967][ T272] vx10: entered allmulticast mode
[ 10.948454][ T272] vx10: entered promiscuous mode
[ 10.948845][ T272] br1: port 1(vx10) entered blocking state
[ 10.949062][ T272] br1: port 1(vx10) entered forwarding state
[ 11.069222][ T277] br1: port 2(vx20) entered blocking state
[ 11.069491][ T277] br1: port 2(vx20) entered disabled state
[ 11.069678][ T277] vx20: entered allmulticast mode
[ 11.071189][ T277] vx20: entered promiscuous mode
[ 11.072582][ T277] br1: port 2(vx20) entered blocking state
[ 11.072771][ T277] br1: port 2(vx20) entered forwarding state
[ 11.121102][ T279] br1: port 3(veth1) entered blocking state
[ 11.121358][ T279] br1: port 3(veth1) entered disabled state
[ 11.127420][ T279] veth1: entered allmulticast mode
[ 11.128898][ T279] veth1: entered promiscuous mode
[ 11.153779][ T38] br1: port 3(veth1) entered blocking state
[ 11.154027][ T38] br1: port 3(veth1) entered forwarding state
[ 11.235272][ T283] br1: port 4(veth2) entered blocking state
[ 11.236171][ T283] br1: port 4(veth2) entered disabled state
[ 11.236416][ T283] veth2: entered allmulticast mode
[ 11.237963][ T283] veth2: entered promiscuous mode
[ 11.265710][ T39] br1: port 4(veth2) entered blocking state
[ 11.265950][ T39] br1: port 4(veth2) entered forwarding state
[ 12.385348][ T334] br2: port 1(w1) entered blocking state
[ 12.386128][ T334] br2: port 1(w1) entered disabled state
[ 12.386295][ T334] w1: entered allmulticast mode
[ 12.387745][ T334] w1: entered promiscuous mode
[ 12.421397][ T335] br2: port 1(w1) entered blocking state
[ 12.421567][ T335] br2: port 1(w1) entered forwarding state
[ 12.590517][ T342] br2: port 2(vx10) entered blocking state
[ 12.590705][ T342] br2: port 2(vx10) entered disabled state
[ 12.590882][ T342] vx10: entered allmulticast mode
[ 12.593373][ T342] vx10: entered promiscuous mode
[ 12.599241][ T342] br2: port 2(vx10) entered blocking state
[ 12.599471][ T342] br2: port 2(vx10) entered forwarding state
[ 12.764716][ T349] br2: port 3(vx20) entered blocking state
[ 12.764915][ T349] br2: port 3(vx20) entered disabled state
[ 12.765100][ T349] vx20: entered allmulticast mode
[ 12.766495][ T349] vx20: entered promiscuous mode
[ 12.766808][ T349] br2: port 3(vx20) entered blocking state
[ 12.766975][ T349] br2: port 3(vx20) entered forwarding state
[ 12.887703][ C0]
[ 12.887882][ C0] =============================
[ 12.888055][ C0] WARNING: suspicious RCU usage
[ 12.888213][ C0] 7.2.0-rc2-virtme #1 Not tainted
[ 12.888430][ C0] -----------------------------
[ 12.888591][ C0] drivers/net/vxlan/vxlan_core.c:872 suspicious rcu_dereference_protected() usage!
[ 12.888858][ C0]
[ 12.888858][ C0] other info that might help us debug this:
[ 12.888858][ C0]
[ 12.889176][ C0]
[ 12.889176][ C0] rcu_scheduler_active = 2, debug_locks = 1
[ 12.889411][ C0] 8 locks held by kworker/0:2/230:
[ 12.889572][ C0] #0: ff11000008c08f40 ((wq_completion)mld){+.+.}-{0:0}, at: process_one_work+0xd55/0x1410
[ 12.889894][ C0] #1: ffa00000005b7d10 ((work_completion)(&(&idev->mc_ifc_work)->work)){+.+.}-{0:0}, at: process_one_work+0xdb7/0x1410
[ 12.890250][ C0] #2: ff1100000c5da530 (&idev->mc_lock){+.+.}-{4:4}, at: mld_ifc_work+0x2e/0x190
[ 12.890532][ C0] #3: ffffffff8af7dd40 (rcu_read_lock){....}-{1:3}, at: mld_sendpack+0x1c9/0xec0
[ 12.890799][ C0] #4: ffffffff8af7dd40 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0
[ 12.891079][ C0] #5: ffffffff8af7dd40 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490
[ 12.891349][ C0] #6: ffffffff8af7dd40 (rcu_read_lock){....}-{1:3}, at: ip_local_deliver_finish+0x2ba/0x610
[ 12.891668][ C0] #7: ff1100000d4caf68 (&vxlan->hash_lock){+.-.}-{3:3}, at: vxlan_snoop+0x5dc/0x9a0 [vxlan]
[ 12.891980][ C0]
[ 12.891980][ C0] stack backtrace:
[ 12.892179][ C0] CPU: 0 UID: 0 PID: 230 Comm: kworker/0:2 Not tainted 7.2.0-rc2-virtme #1 PREEMPT(full)
[ 12.892182][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.892184][ C0] Workqueue: mld mld_ifc_work
[ 12.892187][ C0] Call Trace:
[ 12.892189][ C0]
[ 12.892191][ C0] dump_stack_lvl+0x6f/0xa0
[ 12.892196][ C0] lockdep_rcu_suspicious.cold+0x37/0x89
[ 12.892202][ C0] vxlan_fdb_create+0xe1b/0x1a70 [vxlan]
[ 12.892207][ C0] ? vxlan_find_mac_rcu+0x578/0x6b0 [vxlan]
[ 12.892214][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 12.892218][ C0] ? find_held_lock+0x2b/0x80
[ 12.892220][ C0] ? vxlan_open+0x340/0x340 [vxlan]
[ 12.892224][ C0] ? __lock_release.isra.0+0x6b/0x1a0
[ 12.892226][ C0] ? rcu_read_lock_any_held+0x3c/0x90
[ 12.892233][ C0] vxlan_fdb_update+0x208/0x3e0 [vxlan]
[ 12.892240][ C0] ? vxlan_fdb_create+0x1a70/0x1a70 [vxlan]
[ 12.892243][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 12.892246][ C0] ? do_raw_spin_lock+0x131/0x280
[ 12.892250][ C0] vxlan_snoop+0x6ba/0x9a0 [vxlan]
[ 12.892256][ C0] ? __iptunnel_pull_header+0x33b/0x730
[ 12.892260][ C0] vxlan_rcv+0x172e/0x2c20 [vxlan]
[ 12.892269][ C0] ? encap_bypass_if_local+0x290/0x290 [vxlan]
[ 12.892275][ C0] ? udp_lib_lport_inuse2+0x3d0/0x3d0
[ 12.892280][ C0] ? __udp4_lib_lookup+0x5f1/0x820
[ 12.892283][ C0] ? encap_bypass_if_local+0x290/0x290 [vxlan]
[ 12.892287][ C0] ? udp_queue_rcv_one_skb+0x645/0xb00
[ 12.892289][ C0] udp_queue_rcv_one_skb+0x645/0xb00
[ 12.892291][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 12.892293][ C0] ? perf_trace_lock_acquire+0xc1/0x5a0
[ 12.892296][ C0] udp_unicast_rcv_skb+0x366/0x450
[ 12.892299][ C0] ? udp_rcv+0xce3/0x1e30
[ 12.892301][ C0] udp_rcv+0xd01/0x1e30
[ 12.892305][ C0] ? udp_sk_rx_dst_set+0x90/0x90
[ 12.892309][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 12.892311][ C0] ? ip_local_deliver_finish+0x2ba/0x610
[ 12.892315][ C0] ip_protocol_deliver_rcu+0x82/0x350
[ 12.892318][ C0] ? process_backlog+0x561/0x1490
[ 12.892320][ C0] ip_local_deliver_finish+0x36f/0x610
[ 12.892323][ C0] ip_local_deliver+0x184/0x4c0
[ 12.892325][ C0] ? ip_local_deliver_finish+0x610/0x610
[ 12.892328][ C0] ? ip_rcv_finish_core+0x553/0x14c0
[ 12.892330][ C0] ? __asan_memset+0x27/0x50
[ 12.892337][ C0] ? process_backlog+0x561/0x1490
[ 12.892339][ C0] ip_rcv+0xdc/0x3d0
[ 12.892341][ C0] ? ip_local_deliver+0x4c0/0x4c0
[ 12.892345][ C0] ? mark_usage+0x61/0x170
[ 12.892347][ C0] ? __lock_acquire+0x518/0xc20
[ 12.892351][ C0] __netif_receive_skb_one_core+0xfc/0x180
[ 12.892353][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 12.892356][ C0] ? __netif_receive_skb_list_core+0x9e0/0x9e0
[ 12.892358][ C0] ? rcu_is_watching+0x15/0xd0
[ 12.892366][ C0] process_backlog+0x2bc/0x1490
[ 12.892371][ C0] __napi_poll+0xa7/0x3b0
[ 12.892374][ C0] net_rx_action+0x513/0xf50
[ 12.892379][ C0] ? __napi_poll+0x3b0/0x3b0
[ 12.892384][ C0] ? __lock_release.isra.0+0x6b/0x1a0
[ 12.892386][ C0] ? __rwlock_init+0x150/0x150
[ 12.892391][ C0] ? clockevents_program_event+0x307/0x7e0
[ 12.892394][ C0] ? __run_timers+0xaa0/0xaa0
[ 12.892396][ C0] ? rcu_is_watching+0x15/0xd0
[ 12.892398][ C0] ? mark_held_locks+0x40/0x70
[ 12.892402][ C0] handle_softirqs+0x1d8/0x8f0
[ 12.892407][ C0] ? _local_bh_enable+0xd0/0xd0
[ 12.892411][ C0] ? __dev_queue_xmit+0x964/0x1b80
[ 12.892414][ C0] do_softirq+0xa9/0xe0
[ 12.892416][ C0]
[ 12.892416][ C0]
[ 12.892417][ C0] __local_bh_enable_ip+0x113/0x140
[ 12.892420][ C0] __dev_queue_xmit+0x979/0x1b80
[ 12.892423][ C0] ? __lock_acquire+0x518/0xc20
[ 12.892428][ C0] ? netdev_core_pick_tx+0x2c0/0x2c0
[ 12.892438][ C0] ip6_finish_output2+0x423/0x1300
[ 12.892442][ C0] ? ip6_xmit+0x2000/0x2000
[ 12.892443][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 12.892445][ C0] ? find_held_lock+0x2b/0x80
[ 12.892448][ C0] ? __lock_release.isra.0+0x6b/0x1a0
[ 12.892451][ C0] ? ip6_mtu+0x15d/0x310
[ 12.892455][ C0] ip6_finish_output+0x646/0xda0
[ 12.892459][ C0] ip6_output+0x23f/0x7f0
[ 12.892461][ C0] ? ip6_finish_output+0xda0/0xda0
[ 12.892463][ C0] ? __lock_release.isra.0+0x6b/0x1a0
[ 12.892465][ C0] ? xfrm_bundle_lookup.constprop.0+0xba0/0xba0
[ 12.892468][ C0] ? mark_held_locks+0x40/0x70
[ 12.892471][ C0] ? __local_bh_enable_ip+0xa5/0x140
[ 12.892473][ C0] ? __local_bh_enable_ip+0xa5/0x140
[ 12.892475][ C0] ? icmp6_dst_alloc+0x317/0x4d0
[ 12.892479][ C0] mld_sendpack+0x9d6/0xec0
[ 12.892483][ C0] ? mld_dad_start_work+0x240/0x240
[ 12.892489][ C0] ? mld_send_cr+0x50f/0x820
[ 12.892493][ C0] mld_ifc_work+0x36/0x190
[ 12.892495][ C0] ? process_one_work+0xdb7/0x1410
[ 12.892498][ C0] process_one_work+0xdf8/0x1410
[ 12.892507][ C0] ? pwq_dec_nr_in_flight+0x710/0x710
[ 12.892509][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 12.892516][ C0] worker_thread+0x4f1/0xd60
[ 12.892519][ C0] ? rescuer_thread+0x1320/0x1320
[ 12.892521][ C0] ? __kthread_parkme+0xbd/0x210
[ 12.892524][ C0] ? rescuer_thread+0x1320/0x1320
[ 12.892526][ C0] ? rescuer_thread+0x1320/0x1320
[ 12.892528][ C0] kthread+0x367/0x460
[ 12.892529][ C0] ? trace_irq_enable.constprop.0+0x9b/0x160
[ 12.892533][ C0] ? kthread_affine_node+0x330/0x330
[ 12.892535][ C0] ret_from_fork+0x474/0x6b0
[ 12.892539][ C0] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120
[ 12.892542][ C0] ? __switch_to+0x5a3/0xe00
[ 12.892546][ C0] ? kthread_affine_node+0x330/0x330
[ 12.892548][ C0] ret_from_fork_asm+0x11/0x20
[ 12.892556][ C0]
[ 13.673056][ T389] br2: port 1(w1) entered blocking state
[ 13.673235][ T389] br2: port 1(w1) entered disabled state
[ 13.673405][ T389] w1: entered allmulticast mode
[ 13.674788][ T389] w1: entered promiscuous mode
[ 13.696125][ T390] br2: port 1(w1) entered blocking state
[ 13.696281][ T390] br2: port 1(w1) entered forwarding state
[ 13.862087][ T397] br2: port 2(vx10) entered blocking state
[ 13.862269][ T397] br2: port 2(vx10) entered disabled state
[ 13.862451][ T397] vx10: entered allmulticast mode
[ 13.863840][ T397] vx10: entered promiscuous mode
[ 13.864181][ T397] br2: port 2(vx10) entered blocking state
[ 13.864351][ T397] br2: port 2(vx10) entered forwarding state
[ 14.030552][ T404] br2: port 3(vx20) entered blocking state
[ 14.030739][ T404] br2: port 3(vx20) entered disabled state
[ 14.030911][ T404] vx20: entered allmulticast mode
[ 14.032260][ T404] vx20: entered promiscuous mode
[ 14.032584][ T404] br2: port 3(vx20) entered blocking state
[ 14.032747][ T404] br2: port 3(vx20) entered forwarding state
[ 26.430357][ T12] vx20: left allmulticast mode
[ 26.430673][ T12] vx20: left promiscuous mode
[ 26.430916][ T12] br2: port 3(vx20) entered disabled state
[ 26.442605][ T12] vx10: left allmulticast mode
[ 26.442836][ T12] vx10: left promiscuous mode
[ 26.443141][ T12] br2: port 2(vx10) entered disabled state
[ 26.446143][ T12] w1: left allmulticast mode
[ 26.446295][ T12] w1: left promiscuous mode
[ 26.446994][ T12] br2: port 1(w1) entered disabled state
[ 26.573995][ T12] vx20: left allmulticast mode
[ 26.574238][ T12] vx20: left promiscuous mode
[ 26.574610][ T12] br2: port 3(vx20) entered disabled state
[ 26.578874][ T12] vx10: left allmulticast mode
[ 26.579019][ T12] vx10: left promiscuous mode
[ 26.579223][ T12] br2: port 2(vx10) entered disabled state
[ 26.581817][ T12] w1: left allmulticast mode
[ 26.581959][ T12] w1: left promiscuous mode
[ 26.582175][ T12] br2: port 1(w1) entered disabled state
[ 27.216129][ T555] br1: port 4(veth2) entered disabled state
[ 27.239270][ T556] veth2: left allmulticast mode
[ 27.239448][ T556] veth2: left promiscuous mode
[ 27.239678][ T556] br1: port 4(veth2) entered disabled state
[ 27.320265][ T559] br1: port 3(veth1) entered disabled state
[ 27.351858][ T560] veth1: left allmulticast mode
[ 27.352010][ T560] veth1: left promiscuous mode
[ 27.352232][ T560] br1: port 3(veth1) entered disabled state
[ 27.394841][ T562] vx20: left allmulticast mode
[ 27.394992][ T562] vx20: left promiscuous mode
[ 27.395214][ T562] br1: port 2(vx20) entered disabled state
[ 27.516632][ T566] vx10: left allmulticast mode
[ 27.516783][ T566] vx10: left promiscuous mode
[ 27.516999][ T566] br1: port 1(vx10) entered disabled state