[ 8.603353][ T186] ip (186) used greatest stack depth: 24064 bytes left
[ 10.242140][ T253] br1: port 1(vx1) entered blocking state
[ 10.242479][ T253] br1: port 1(vx1) entered disabled state
[ 10.252302][ T253] vx1: entered allmulticast mode
[ 10.254415][ T253] vx1: entered promiscuous mode
[ 10.255552][ T253] br1: port 1(vx1) entered blocking state
[ 10.255919][ T253] br1: port 1(vx1) entered forwarding state
[ 10.285104][ T254] br1: port 2(veth1) entered blocking state
[ 10.285288][ T254] br1: port 2(veth1) entered disabled state
[ 10.285467][ T254] veth1: entered allmulticast mode
[ 10.286893][ T254] veth1: entered promiscuous mode
[ 10.312379][ T39] br1: port 2(veth1) entered blocking state
[ 10.312744][ T39] br1: port 2(veth1) entered forwarding state
[ 10.345360][ T256] br1: port 3(veth2) entered blocking state
[ 10.345593][ T256] br1: port 3(veth2) entered disabled state
[ 10.345829][ T256] veth2: entered allmulticast mode
[ 10.347323][ T256] veth2: entered promiscuous mode
[ 10.375692][ T39] br1: port 3(veth2) entered blocking state
[ 10.375868][ T39] br1: port 3(veth2) entered forwarding state
[ 11.344734][ T303] br2: port 1(w1) entered blocking state
[ 11.344938][ T303] br2: port 1(w1) entered disabled state
[ 11.345133][ T303] w1: entered allmulticast mode
[ 11.346779][ T303] w1: entered promiscuous mode
[ 11.374458][ T304] br2: port 1(w1) entered blocking state
[ 11.374742][ T304] br2: port 1(w1) entered forwarding state
[ 11.489619][ T309] br2: port 2(vx2) entered blocking state
[ 11.489802][ T309] br2: port 2(vx2) entered disabled state
[ 11.489997][ T309] vx2: entered allmulticast mode
[ 11.491394][ T309] vx2: entered promiscuous mode
[ 11.492007][ T309] br2: port 2(vx2) entered blocking state
[ 11.492193][ T309] br2: port 2(vx2) entered forwarding state
[ 11.561898][ C0]
[ 11.562062][ C0] =============================
[ 11.562264][ C0] WARNING: suspicious RCU usage
[ 11.562423][ C0] 7.2.0-rc2-virtme #1 Not tainted
[ 11.562622][ C0] -----------------------------
[ 11.562780][ C0] drivers/net/vxlan/vxlan_core.c:872 suspicious rcu_dereference_protected() usage!
[ 11.563050][ C0]
[ 11.563050][ C0] other info that might help us debug this:
[ 11.563050][ C0]
[ 11.563352][ C0]
[ 11.563352][ C0] rcu_scheduler_active = 2, debug_locks = 1
[ 11.563601][ C0] 6 locks held by ip/312:
[ 11.563726][ C0] #0: ff1100000bb207c8 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x12a/0x410
[ 11.564008][ C0] #1: ff1100000d0310b8 (&mm->mmap_lock){++++}-{4:4}, at: __vmf_anon_prepare+0xce/0x2a0
[ 11.564280][ C0] #2: ff1100002e83bea0 ((local_lock_t *)&pcs->lock){+.+.}-{3:3}, at: kmem_cache_alloc_noprof+0xed/0x600
[ 11.564601][ C0] #3: ffffffffb237dd40 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490
[ 11.564881][ C0] #4: ffffffffb237dd40 (rcu_read_lock){....}-{1:3}, at: ip_local_deliver_finish+0x2ba/0x610
[ 11.565191][ C0] #5: ff1100000bba2f68 (&vxlan->hash_lock){+.-.}-{3:3}, at: vxlan_snoop+0x5dc/0x9a0 [vxlan]
[ 11.565508][ C0]
[ 11.565508][ C0] stack backtrace:
[ 11.565715][ C0] CPU: 0 UID: 0 PID: 312 Comm: ip Not tainted 7.2.0-rc2-virtme #1 PREEMPT(full)
[ 11.565718][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.565720][ C0] Call Trace:
[ 11.565721][ C0]
[ 11.565723][ C0] dump_stack_lvl+0x6f/0xa0
[ 11.565728][ C0] lockdep_rcu_suspicious.cold+0x37/0x89
[ 11.565733][ C0] vxlan_fdb_create+0xe1b/0x1a70 [vxlan]
[ 11.565738][ C0] ? vxlan_find_mac_rcu+0x578/0x6b0 [vxlan]
[ 11.565744][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 11.565748][ C0] ? find_held_lock+0x2b/0x80
[ 11.565750][ C0] ? vxlan_open+0x340/0x340 [vxlan]
[ 11.565754][ C0] ? __lock_release.isra.0+0x6b/0x1a0
[ 11.565759][ C0] vxlan_fdb_update+0x208/0x3e0 [vxlan]
[ 11.565765][ C0] ? vxlan_fdb_create+0x1a70/0x1a70 [vxlan]
[ 11.565769][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 11.565771][ C0] ? do_raw_spin_lock+0x131/0x280
[ 11.565775][ C0] vxlan_snoop+0x6ba/0x9a0 [vxlan]
[ 11.565781][ C0] ? __iptunnel_pull_header+0x33b/0x730
[ 11.565785][ C0] vxlan_rcv+0x172e/0x2c20 [vxlan]
[ 11.565790][ C0] ? mark_usage+0x61/0x170
[ 11.565795][ C0] ? encap_bypass_if_local+0x290/0x290 [vxlan]
[ 11.565800][ C0] ? udp4_lib_lookup2+0x33d/0x740
[ 11.565803][ C0] ? udp_lib_lport_inuse2+0x3d0/0x3d0
[ 11.565807][ C0] ? __udp4_lib_lookup+0x5f1/0x820
[ 11.565810][ C0] ? encap_bypass_if_local+0x290/0x290 [vxlan]
[ 11.565814][ C0] ? udp_queue_rcv_one_skb+0x645/0xb00
[ 11.565815][ C0] udp_queue_rcv_one_skb+0x645/0xb00
[ 11.565817][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 11.565818][ C0] ? perf_trace_lock_acquire+0xc1/0x5a0
[ 11.565822][ C0] udp_unicast_rcv_skb+0x366/0x450
[ 11.565825][ C0] ? udp_rcv+0xce3/0x1e30
[ 11.565826][ C0] udp_rcv+0xd01/0x1e30
[ 11.565831][ C0] ? udp_sk_rx_dst_set+0x90/0x90
[ 11.565834][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 11.565836][ C0] ? ip_local_deliver_finish+0x2ba/0x610
[ 11.565840][ C0] ip_protocol_deliver_rcu+0x82/0x350
[ 11.565843][ C0] ? process_backlog+0x561/0x1490
[ 11.565845][ C0] ip_local_deliver_finish+0x36f/0x610
[ 11.565848][ C0] ip_local_deliver+0x184/0x4c0
[ 11.565850][ C0] ? ip_local_deliver_finish+0x610/0x610
[ 11.565852][ C0] ? ip_rcv_finish_core+0x6ed/0x14c0
[ 11.565854][ C0] ? __asan_memset+0x27/0x50
[ 11.565860][ C0] ? process_backlog+0x561/0x1490
[ 11.565862][ C0] ip_rcv+0xdc/0x3d0
[ 11.565864][ C0] ? ip_local_deliver+0x4c0/0x4c0
[ 11.565868][ C0] ? mark_usage+0x61/0x170
[ 11.565870][ C0] ? __lock_acquire+0x518/0xc20
[ 11.565872][ C0] ? netdev_upper_dev_unlink+0x97/0xa0
[ 11.565875][ C0] __netif_receive_skb_one_core+0xfc/0x180
[ 11.565877][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 11.565880][ C0] ? __netif_receive_skb_list_core+0x9e0/0x9e0
[ 11.565882][ C0] ? rcu_is_watching+0x15/0xd0
[ 11.565887][ C0] process_backlog+0x2bc/0x1490
[ 11.565892][ C0] __napi_poll+0xa7/0x3b0
[ 11.565895][ C0] net_rx_action+0x513/0xf50
[ 11.565900][ C0] ? __napi_poll+0x3b0/0x3b0
[ 11.565904][ C0] ? find_held_lock+0x2b/0x80
[ 11.565910][ C0] ? _raw_spin_unlock_irqrestore+0x40/0x80
[ 11.565913][ C0] ? note_gp_changes+0x158/0x1f0
[ 11.565915][ C0] ? mark_held_locks+0x40/0x70
[ 11.565919][ C0] handle_softirqs+0x1d8/0x8f0
[ 11.565924][ C0] ? _local_bh_enable+0xd0/0xd0
[ 11.565928][ C0] __irq_exit_rcu+0x103/0x1c0
[ 11.565930][ C0] irq_exit_rcu+0xe/0x30
[ 11.565932][ C0] sysvec_apic_timer_interrupt+0x9d/0xe0
[ 11.565935][ C0]
[ 11.565936][ C0]
[ 11.565936][ C0] ? handle_mm_fault+0x18b/0x4b0
[ 11.565939][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 11.565941][ C0] RIP: 0010:lock_acquire.part.0+0xfa/0x260
[ 11.565944][ C0] Code: ff 65 0f c1 05 17 53 37 04 83 f8 01 4c 8b 14 24 0f 85 30 01 00 00 9c 58 f6 c4 02 0f 85 4d 01 00 00 4d 85 d2 0f 85 16 01 00 00 <48> 8b 44 24 30 65 48 2b 05 e9 0d 37 04 0f 85 43 01 00 00 48 83 c4
[ 11.565945][ C0] RSP: 0000:ffa0000001b9fab0 EFLAGS: 00000206
[ 11.565947][ C0] RAX: 0000000000000046 RBX: 0000000000000000 RCX: 5755d8304f01a0f6
[ 11.565949][ C0] RDX: 0000000000000001 RSI: ffffffffb1e01084 RDI: ffffffffb187a960
[ 11.565949][ C0] RBP: 0000000000000001 R08: 0000000000000001 R09: ff110000050aaed0
[ 11.565950][ C0] R10: 0000000000000200 R11: 0000000000000001 R12: ff1100002e83bea0
[ 11.565951][ C0] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[ 11.565957][ C0] ? rcu_is_watching+0x15/0xd0
[ 11.565959][ C0] ? lock_acquire+0x13c/0x160
[ 11.565962][ C0] kmem_cache_alloc_noprof+0x10d/0x600
[ 11.565964][ C0] ? kmem_cache_alloc_noprof+0xed/0x600
[ 11.565966][ C0] ? __alloc_object+0x30/0x250
[ 11.565971][ C0] __alloc_object+0x30/0x250
[ 11.565973][ C0] __create_object+0x30/0x110
[ 11.565975][ C0] ? kasan_save_track+0x14/0x30
[ 11.565978][ C0] kmem_cache_alloc_noprof+0x303/0x600
[ 11.565980][ C0] ? __anon_vma_prepare+0xa5/0x580
[ 11.565985][ C0] __anon_vma_prepare+0xa5/0x580
[ 11.565988][ C0] __vmf_anon_prepare+0xf7/0x2a0
[ 11.565991][ C0] do_pte_missing+0x471/0xe40
[ 11.565993][ C0] ? rcu_read_unlock+0x1b/0x70
[ 11.565996][ C0] ? rcu_read_unlock+0x20/0x70
[ 11.565998][ C0] __handle_mm_fault+0x5ed/0x840
[ 11.566000][ C0] ? __pmd_alloc+0x840/0x840
[ 11.566002][ C0] ? lock_vma_under_rcu+0x159/0x410
[ 11.566004][ C0] ? __lock_release.isra.0+0xb3/0x1a0
[ 11.566012][ C0] handle_mm_fault+0x18b/0x4b0
[ 11.566014][ C0] ? rcu_is_watching+0x15/0xd0
[ 11.566017][ C0] do_user_addr_fault+0x472/0xe30
[ 11.566022][ C0] ? irqentry_enter+0x9f/0xd0
[ 11.566024][ C0] exc_page_fault+0x87/0x100
[ 11.566026][ C0] asm_exc_page_fault+0x26/0x30
[ 11.566028][ C0] RIP: 0033:0x7fb6937fb76a
[ 11.566030][ C0] Code: 0f 61 c0 66 0f 70 c0 00 48 83 fa 10 0f 82 7e 00 00 00 48 83 fa 20 77 12 0f 11 44 17 f0 0f 11 07 c3 0f 11 47 e0 0f 11 47 f0 c3 <0f> 11 07 0f 11 47 10 48 01 d7 48 83 fa 40 76 e7 0f 11 40 20 0f 11
[ 11.566031][ C0] RSP: 002b:00007ffd49d2bba8 EFLAGS: 00010206
[ 11.566033][ C0] RAX: 00007fb6937c5058 RBX: 00007fb6937cc810 RCX: 00007fb6937c5058
[ 11.566033][ C0] RDX: 0000000000000fa8 RSI: 0000000000000000 RDI: 00007fb6937c5058
[ 11.566034][ C0] RBP: 00007ffd49d2bfb0 R08: 00007fb6937c6000 R09: 0000000000000003
[ 11.566035][ C0] R10: 00007fb6937c6000 R11: 0000000000000206 R12: 0000000000000003
[ 11.566035][ C0] R13: 00007ffd49d2bc20 R14: 00007ffd49d2c050 R15: 00007fb6937c75d0
[ 11.566041][ C0]
[ 11.657469][ T36] br2: port 1(w1) entered disabled state
[ 11.688113][ T38] br2: port 1(w1) entered blocking state
[ 11.688295][ T38] br2: port 1(w1) entered forwarding state
[ 12.164585][ T340] br2: port 1(w1) entered blocking state
[ 12.164792][ T340] br2: port 1(w1) entered disabled state
[ 12.164991][ T340] w1: entered allmulticast mode
[ 12.166497][ T340] w1: entered promiscuous mode
[ 12.200259][ T341] br2: port 1(w1) entered blocking state
[ 12.200415][ T341] br2: port 1(w1) entered forwarding state
[ 12.320255][ T346] br2: port 2(vx2) entered blocking state
[ 12.320407][ T346] br2: port 2(vx2) entered disabled state
[ 12.320553][ T346] vx2: entered allmulticast mode
[ 12.321895][ T346] vx2: entered promiscuous mode
[ 12.322495][ T346] br2: port 2(vx2) entered blocking state
[ 12.322644][ T346] br2: port 2(vx2) entered forwarding state
[ 21.463704][ T12] vx2: left allmulticast mode
[ 21.463922][ T12] vx2: left promiscuous mode
[ 21.464145][ T12] br2: port 2(vx2) entered disabled state
[ 21.466984][ T12] w1: left allmulticast mode
[ 21.467199][ T12] w1: left promiscuous mode
[ 21.467500][ T12] br2: port 1(w1) entered disabled state
[ 21.572881][ T12] vx2: left allmulticast mode
[ 21.573032][ T12] vx2: left promiscuous mode
[ 21.573232][ T12] br2: port 2(vx2) entered disabled state
[ 21.579132][ T12] w1: left allmulticast mode
[ 21.579308][ T12] w1: left promiscuous mode
[ 21.579594][ T12] br2: port 1(w1) entered disabled state
[ 22.159001][ T473] vx1: left allmulticast mode
[ 22.159207][ T473] vx1: left promiscuous mode
[ 22.159484][ T473] br1: port 1(vx1) entered disabled state
[ 22.256551][ T476] br1: port 3(veth2) entered disabled state
[ 22.277325][ T477] veth2: left allmulticast mode
[ 22.277474][ T477] veth2: left promiscuous mode
[ 22.277696][ T477] br1: port 3(veth2) entered disabled state
[ 22.311644][ T478] br1: port 2(veth1) entered disabled state
[ 22.334193][ T479] veth1: left allmulticast mode
[ 22.334339][ T479] veth1: left promiscuous mode
[ 22.334550][ T479] br1: port 2(veth1) entered disabled state