[  613.116771][T18815] 8021q: 802.1Q VLAN Support v1.8
[  614.419488][T18867] br1: port 1(vx10) entered blocking state
[  614.419801][T18867] br1: port 1(vx10) entered disabled state
[  614.420002][T18867] vx10: entered allmulticast mode
[  614.421710][T18867] vx10: entered promiscuous mode
[  614.422580][T18867] br1: port 1(vx10) entered blocking state
[  614.422806][T18867] br1: port 1(vx10) entered forwarding state
[  614.542959][T18873] br1: port 2(vx20) entered blocking state
[  614.544928][T18873] br1: port 2(vx20) entered disabled state
[  614.545216][T18873] vx20: entered allmulticast mode
[  614.546669][T18873] vx20: entered promiscuous mode
[  614.547201][T18873] br1: port 2(vx20) entered blocking state
[  614.547375][T18873] br1: port 2(vx20) entered forwarding state
[  614.607414][T18875] br1: port 3(veth1) entered blocking state
[  614.607633][T18875] br1: port 3(veth1) entered disabled state
[  614.607831][T18875] veth1: entered allmulticast mode
[  614.610038][T18875] veth1: entered promiscuous mode
[  614.634513][  T199] br1: port 3(veth1) entered blocking state
[  614.634815][  T199] br1: port 3(veth1) entered forwarding state
[  614.741922][T18880] br1: port 4(veth2) entered blocking state
[  614.742143][T18880] br1: port 4(veth2) entered disabled state
[  614.742344][T18880] veth2: entered allmulticast mode
[  614.743818][T18880] veth2: entered promiscuous mode
[  614.776398][   T46] br1: port 4(veth2) entered blocking state
[  614.776594][   T46] br1: port 4(veth2) entered forwarding state
[  615.972268][T18937] br2: port 1(w1) entered blocking state
[  615.972445][T18937] br2: port 1(w1) entered disabled state
[  615.972600][T18937] w1: entered allmulticast mode
[  615.974035][T18937] w1: entered promiscuous mode
[  615.996705][T18938] br2: port 1(w1) entered blocking state
[  615.996877][T18938] br2: port 1(w1) entered forwarding state
[  616.187371][T18945] br2: port 2(vx10) entered blocking state
[  616.187571][T18945] br2: port 2(vx10) entered disabled state
[  616.187760][T18945] vx10: entered allmulticast mode
[  616.189430][T18945] vx10: entered promiscuous mode
[  616.189810][T18945] br2: port 2(vx10) entered blocking state
[  616.190075][T18945] br2: port 2(vx10) entered forwarding state
[  616.201203][   T37] br2: port 1(w1) entered disabled state
[  616.375534][T18952] br2: port 3(vx20) entered blocking state
[  616.375784][T18952] br2: port 3(vx20) entered disabled state
[  616.376246][T18952] vx20: entered allmulticast mode
[  616.377780][T18952] vx20: entered promiscuous mode
[  616.378233][T18952] br2: port 3(vx20) entered blocking state
[  616.378501][T18952] br2: port 3(vx20) entered forwarding state
[  616.600628][  T199] br2: port 1(w1) entered blocking state
[  616.600823][  T199] br2: port 1(w1) entered forwarding state
[  617.351389][T18993] br2: port 1(w1) entered blocking state
[  617.351607][T18993] br2: port 1(w1) entered disabled state
[  617.351818][T18993] w1: entered allmulticast mode
[  617.353787][T18993] w1: entered promiscuous mode
[  617.568645][T19001] br2: port 2(vx10) entered blocking state
[  617.568847][T19001] br2: port 2(vx10) entered disabled state
[  617.569058][T19001] vx10: entered allmulticast mode
[  617.571203][T19001] vx10: entered promiscuous mode
[  617.571579][T19001] br2: port 2(vx10) entered blocking state
[  617.572108][T19001] br2: port 2(vx10) entered forwarding state
[  617.746531][T19008] br2: port 3(vx20) entered blocking state
[  617.746792][T19008] br2: port 3(vx20) entered disabled state
[  617.747051][T19008] vx20: entered allmulticast mode
[  617.749399][T19008] vx20: entered promiscuous mode
[  617.749823][T19008] br2: port 3(vx20) entered blocking state
[  617.750059][T19008] br2: port 3(vx20) entered forwarding state
[  617.975872][T17188] br2: port 1(w1) entered blocking state
[  617.976113][T17188] br2: port 1(w1) entered forwarding state
[  618.985718][    C1] 
[  618.985978][    C1] =============================
[  618.986453][    C1] WARNING: suspicious RCU usage
[  618.986628][    C1] 7.2.0-rc2-virtme #1 Not tainted
[  618.986885][    C1] -----------------------------
[  618.987065][    C1] drivers/net/vxlan/vxlan_core.c:872 suspicious rcu_dereference_protected() usage!
[  618.987367][    C1] 
[  618.987367][    C1] other info that might help us debug this:
[  618.987367][    C1] 
[  618.987715][    C1] 
[  618.987715][    C1] rcu_scheduler_active = 2, debug_locks = 1
[  618.987993][    C1] 6 locks held by vxlan_bridge_1q/18775:
[  618.988173][    C1]  #0: ffffffffba6f29d0 (dup_mmap_sem){.+.+}-{0:0}, at: copy_process+0x2b7b/0x5940
[  618.988486][    C1]  #1: ff110000111d76b8 (&mm->mmap_lock){++++}-{4:4}, at: dup_mmap+0x15b/0x1a90
[  618.988791][    C1]  #2: ff1100000d2cb6f8 (&mm->mmap_lock/1){+.+.}-{4:4}, at: dup_mmap+0x1c9/0x1a90
[  618.989106][    C1]  #3: ffffffffba57dd40 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490
[  618.989413][    C1]  #4: ffffffffba57dd40 (rcu_read_lock){....}-{1:3}, at: ip6_input+0xa1/0x570
[  618.989719][    C1]  #5: ff1100000d172f68 (&vxlan->hash_lock){+.-.}-{3:3}, at: vxlan_snoop+0x5dc/0x9a0 [vxlan]
[  618.990071][    C1] 
[  618.990071][    C1] stack backtrace:
[  618.990288][    C1] CPU: 1 UID: 0 PID: 18775 Comm: vxlan_bridge_1q Not tainted 7.2.0-rc2-virtme #1 PREEMPT(full) 
[  618.990291][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  618.990293][    C1] Call Trace:
[  618.990295][    C1]  <IRQ>
[  618.990296][    C1]  dump_stack_lvl+0x6f/0xa0
[  618.990302][    C1]  lockdep_rcu_suspicious.cold+0x37/0x89
[  618.990307][    C1]  vxlan_fdb_create+0xe1b/0x1a70 [vxlan]
[  618.990313][    C1]  ? vxlan_find_mac_rcu+0x578/0x6b0 [vxlan]
[  618.990319][    C1]  ? lock_acquire.part.0+0xbc/0x260
[  618.990322][    C1]  ? find_held_lock+0x2b/0x80
[  618.990325][    C1]  ? vxlan_open+0x340/0x340 [vxlan]
[  618.990330][    C1]  ? __lock_release.isra.0+0x6b/0x1a0
[  618.990335][    C1]  vxlan_fdb_update+0x208/0x3e0 [vxlan]
[  618.990341][    C1]  ? vxlan_fdb_create+0x1a70/0x1a70 [vxlan]
[  618.990345][    C1]  ? lock_acquire.part.0+0xbc/0x260
[  618.990347][    C1]  ? do_raw_spin_lock+0x131/0x280
[  618.990351][    C1]  vxlan_snoop+0x6ba/0x9a0 [vxlan]
[  618.990359][    C1]  vxlan_rcv+0x172e/0x2c20 [vxlan]
[  618.990368][    C1]  ? encap_bypass_if_local+0x290/0x290 [vxlan]
[  618.990372][    C1]  ? __udp6_lib_lookup+0x6c3/0x9a0
[  618.990378][    C1]  ? __lock_release.isra.0+0x6b/0x1a0
[  618.990382][    C1]  ? encap_bypass_if_local+0x290/0x290 [vxlan]
[  618.990386][    C1]  ? udpv6_queue_rcv_one_skb+0x653/0xbf0
[  618.990389][    C1]  udpv6_queue_rcv_one_skb+0x653/0xbf0
[  618.990393][    C1]  udp6_unicast_rcv_skb+0x2b3/0x390
[  618.990396][    C1]  ip6_protocol_deliver_rcu+0x15c/0x1480
[  618.990403][    C1]  ip6_input_finish+0x196/0x590
[  618.990406][    C1]  ip6_input+0x130/0x570
[  618.990408][    C1]  ? ip6_input_finish+0x590/0x590
[  618.990411][    C1]  ? ip6_rcv_core+0xded/0x1be0
[  618.990416][    C1]  ipv6_rcv+0x3c1/0x5a0
[  618.990418][    C1]  ? ip6_rcv_core+0x1be0/0x1be0
[  618.990422][    C1]  ? mark_usage+0x61/0x170
[  618.990424][    C1]  ? __lock_acquire+0x518/0xc20
[  618.990428][    C1]  ? process_backlog+0x561/0x1490
[  618.990430][    C1]  __netif_receive_skb_one_core+0xfc/0x180
[  618.990432][    C1]  ? lock_acquire.part.0+0xbc/0x260
[  618.990435][    C1]  ? __netif_receive_skb_list_core+0x9e0/0x9e0
[  618.990437][    C1]  ? rcu_is_watching+0x15/0xd0
[  618.990443][    C1]  process_backlog+0x2bc/0x1490
[  618.990448][    C1]  __napi_poll+0xa7/0x3b0
[  618.990451][    C1]  net_rx_action+0x513/0xf50
[  618.990455][    C1]  ? __lock_acquire+0x518/0xc20
[  618.990458][    C1]  ? __napi_poll+0x3b0/0x3b0
[  618.990461][    C1]  ? trace_rcu_this_gp.isra.0+0x1b6/0x3c0
[  618.990465][    C1]  ? trace_rcu_quiescent_state_report+0xf2/0x330
[  618.990471][    C1]  ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160
[  618.990473][    C1]  ? lockdep_hardirqs_on+0x8c/0x130
[  618.990476][    C1]  ? _raw_spin_unlock_irqrestore+0x53/0x80
[  618.990478][    C1]  ? mark_held_locks+0x40/0x70
[  618.990482][    C1]  handle_softirqs+0x1d8/0x8f0
[  618.990487][    C1]  ? _local_bh_enable+0xd0/0xd0
[  618.990491][    C1]  __irq_exit_rcu+0x103/0x1c0
[  618.990493][    C1]  irq_exit_rcu+0xe/0x30
[  618.990495][    C1]  sysvec_apic_timer_interrupt+0x9d/0xe0
[  618.990497][    C1]  </IRQ>
[  618.990498][    C1]  <TASK>
[  618.990499][    C1]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[  618.990502][    C1] RIP: 0010:lock_release+0xdc/0x1f0
[  618.990504][    C1] Code: 4b 37 04 83 f8 01 0f 85 fc 00 00 00 9c 58 f6 c4 02 0f 85 11 01 00 00 41 f7 c7 00 02 00 00 0f 84 c7 00 00 00 fb 4c 8b 7c 24 18 <48> 8b 5c 24 08 4c 8b 74 24 10 48 83 c4 20 c3 65 8b 05 82 06 37 04
[  618.990506][    C1] RSP: 0018:ffa000000fd07380 EFLAGS: 00000206
[  618.990508][    C1] RAX: 0000000000000046 RBX: ffffffffba775620 RCX: 0000000000000001
[  618.990509][    C1] RDX: 0000000000000003 RSI: ffffffffba001084 RDI: ffffffffb9a7a960
[  618.990510][    C1] RBP: 0000000000092cc0 R08: 0000000000000001 R09: ff1100000a9ed260
[  618.990511][    C1] R10: 0000000000000001 R11: 0000000000000001 R12: ff11000012e694d8
[  618.990512][    C1] R13: 0000000000092cc0 R14: ffffffffb7af5256 R15: 0000000000000001
[  618.990513][    C1]  ? kmem_cache_alloc_noprof+0x76/0x600
[  618.990521][    C1]  kmem_cache_alloc_noprof+0x76/0x600
[  618.990523][    C1]  ? __alloc_object+0x30/0x250
[  618.990528][    C1]  __alloc_object+0x30/0x250
[  618.990531][    C1]  __create_object+0x30/0x110
[  618.990532][    C1]  ? kasan_save_track+0x14/0x30
[  618.990537][    C1]  kmem_cache_alloc_noprof+0x303/0x600
[  618.990539][    C1]  ? ptlock_alloc+0x22/0x70
[  618.990544][    C1]  ptlock_alloc+0x22/0x70
[  618.990546][    C1]  pte_alloc_one+0x69/0x370
[  618.990549][    C1]  __pte_alloc+0x6c/0x350
[  618.990553][    C1]  ? pmd_install+0x1c0/0x1c0
[  618.990555][    C1]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  618.990557][    C1]  ? rcu_read_lock_any_held+0x3c/0x90
[  618.990561][    C1]  copy_pte_range+0x7d7/0x9b0
[  618.990567][    C1]  ? copy_present_ptes+0x1d30/0x1d30
[  618.990569][    C1]  ? lock_acquire.part.0+0xbc/0x260
[  618.990571][    C1]  ? find_held_lock+0x2b/0x80
[  618.990574][    C1]  ? __rwlock_init+0x150/0x150
[  618.990578][    C1]  ? _raw_spin_unlock+0x2d/0x50
[  618.990581][    C1]  copy_p4d_range+0x2ba/0x770
[  618.990588][    C1]  copy_page_range+0x384/0x8a0
[  618.990592][    C1]  ? mas_wr_store_entry+0x660/0x660
[  618.990595][    C1]  ? copy_p4d_range+0x770/0x770
[  618.990599][    C1]  ? __vma_start_exclude_readers+0x6f0/0x6f0
[  618.990604][    C1]  dup_mmap+0xad5/0x1a90
[  618.990611][    C1]  ? mmap_read_lock_maybe_expand+0x380/0x380
[  618.990613][    C1]  ? __lock_acquire+0x518/0xc20
[  618.990615][    C1]  ? rcu_read_lock_any_held+0x3c/0x90
[  618.990618][    C1]  ? validate_chain+0x38b/0xc20
[  618.990620][    C1]  ? lock_acquire.part.0+0xbc/0x260
[  618.990622][    C1]  ? find_held_lock+0x2b/0x80
[  618.990628][    C1]  ? lock_acquire.part.0+0xbc/0x260
[  618.990630][    C1]  ? copy_process+0x2b7b/0x5940
[  618.990633][    C1]  ? rcu_is_watching+0x15/0xd0
[  618.990638][    C1]  copy_process+0x2b8a/0x5940
[  618.990646][    C1]  ? pidfd_prepare+0x150/0x150
[  618.990650][    C1]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  618.990651][    C1]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[  618.990653][    C1]  ? rcu_read_lock_any_held+0x3c/0x90
[  618.990657][    C1]  kernel_clone+0x1a4/0x6c0
[  618.990660][    C1]  ? create_io_thread+0x130/0x130
[  618.990665][    C1]  ? __might_fault+0x97/0x140
[  618.990667][    C1]  ? find_held_lock+0x2b/0x80
[  618.990671][    C1]  __do_sys_clone+0xe3/0x130
[  618.990674][    C1]  ? kernel_clone+0x6c0/0x6c0
[  618.990682][    C1]  ? rcu_is_watching+0x15/0xd0
[  618.990684][    C1]  ? trace_irq_enable.constprop.0+0x9b/0x160
[  618.990688][    C1]  do_syscall_64+0x117/0x590
[  618.990690][    C1]  ? trace_hardirqs_off+0xd/0x30
[  618.990692][    C1]  ? exc_page_fault+0xee/0x100
[  618.990694][    C1]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  618.990696][    C1] RIP: 0033:0x7ffb162eb126
[  618.990698][    C1] Code: 7d e0 e8 7d af f5 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5a 89 c3 85 c0 75 2f 64 48 8b 04 25 10 00 00
[  618.990700][    C1] RSP: 002b:00007fff522fce40 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[  618.990701][    C1] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ffb162eb126
[  618.990702][    C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
[  618.990703][    C1] RBP: 00007fff522fce60 R08: 0000000000000000 R09: 0000000000000020
[  618.990703][    C1] R10: 00007ffb16229e50 R11: 0000000000000246 R12: 000055aa68705a90
[  618.990704][    C1] R13: 000055aa686f98c0 R14: 0000000000000000 R15: 00000000ffffffff
[  618.990711][    C1]  </TASK>
[  626.200479][T19104] GACT probability NOT on
[  713.156468][   T12] vx20: left allmulticast mode
[  713.156841][   T12] vx20: left promiscuous mode
[  713.157135][   T12] br2: port 3(vx20) entered disabled state
[  713.160822][   T12] vx10: left allmulticast mode
[  713.161086][   T12] vx10: left promiscuous mode
[  713.161308][   T12] br2: port 2(vx10) entered disabled state
[  713.163450][   T12] w1: left allmulticast mode
[  713.163605][   T12] w1: left promiscuous mode
[  713.163821][   T12] br2: port 1(w1) entered disabled state
[  713.284968][   T12] vx20: left allmulticast mode
[  713.285195][   T12] vx20: left promiscuous mode
[  713.285498][   T12] br2: port 3(vx20) entered disabled state
[  713.287504][   T12] vx10: left allmulticast mode
[  713.287692][   T12] vx10: left promiscuous mode
[  713.288462][   T12] br2: port 2(vx10) entered disabled state
[  713.296932][   T12] w1: left allmulticast mode
[  713.298262][   T12] w1: left promiscuous mode
[  713.298548][   T12] br2: port 1(w1) entered disabled state
[  713.967482][T19332] br1: port 4(veth2) entered disabled state
[  713.989962][T19333] veth2: left allmulticast mode
[  713.990153][T19333] veth2: left promiscuous mode
[  713.990387][T19333] br1: port 4(veth2) entered disabled state
[  714.099463][T19337] br1: port 3(veth1) entered disabled state
[  714.128451][T19338] veth1: left allmulticast mode
[  714.128666][T19338] veth1: left promiscuous mode
[  714.128965][T19338] br1: port 3(veth1) entered disabled state
[  714.183166][T19340] vx20: left allmulticast mode
[  714.183344][T19340] vx20: left promiscuous mode
[  714.183572][T19340] br1: port 2(vx20) entered disabled state
[  714.312223][T19344] vx10: left allmulticast mode
[  714.312396][T19344] vx10: left promiscuous mode
[  714.312624][T19344] br1: port 1(vx10) entered disabled state