[ 9.707513][ T230] 8021q: 802.1Q VLAN Support v1.8 [ 10.971986][ T283] br1: port 1(vx10) entered blocking state [ 10.972262][ T283] br1: port 1(vx10) entered disabled state [ 10.972990][ T283] vx10: entered allmulticast mode [ 10.974549][ T283] vx10: entered promiscuous mode [ 10.974956][ T283] br1: port 1(vx10) entered blocking state [ 10.975171][ T283] br1: port 1(vx10) entered forwarding state [ 11.087030][ T288] br1: port 2(vx20) entered blocking state [ 11.087265][ T288] br1: port 2(vx20) entered disabled state [ 11.087616][ T288] vx20: entered allmulticast mode [ 11.089109][ T288] vx20: entered promiscuous mode [ 11.090547][ T288] br1: port 2(vx20) entered blocking state [ 11.090759][ T288] br1: port 2(vx20) entered forwarding state [ 11.151469][ T290] br1: port 3(veth1) entered blocking state [ 11.151656][ T290] br1: port 3(veth1) entered disabled state [ 11.151833][ T290] veth1: entered allmulticast mode [ 11.153658][ T290] veth1: entered promiscuous mode [ 11.176676][ T39] br1: port 3(veth1) entered blocking state [ 11.176892][ T39] br1: port 3(veth1) entered forwarding state [ 11.266632][ T295] br1: port 4(veth2) entered blocking state [ 11.266813][ T295] br1: port 4(veth2) entered disabled state [ 11.266990][ T295] veth2: entered allmulticast mode [ 11.268416][ T295] veth2: entered promiscuous mode [ 11.299718][ T38] br1: port 4(veth2) entered blocking state [ 11.299901][ T38] br1: port 4(veth2) entered forwarding state [ 12.388053][ T346] br2: port 1(w1) entered blocking state [ 12.388225][ T346] br2: port 1(w1) entered disabled state [ 12.388382][ T346] w1: entered allmulticast mode [ 12.389827][ T346] w1: entered promiscuous mode [ 12.416565][ T347] br2: port 1(w1) entered blocking state [ 12.416758][ T347] br2: port 1(w1) entered forwarding state [ 12.580587][ T354] br2: port 2(vx10) entered blocking state [ 12.580806][ T354] br2: port 2(vx10) entered disabled state [ 12.581034][ T354] vx10: entered allmulticast mode [ 12.582744][ T354] vx10: entered promiscuous mode [ 12.583177][ T354] br2: port 2(vx10) entered blocking state [ 12.583390][ T354] br2: port 2(vx10) entered forwarding state [ 12.737350][ T39] br2: port 1(w1) entered disabled state [ 12.762574][ T361] br2: port 3(vx20) entered blocking state [ 12.762758][ T361] br2: port 3(vx20) entered disabled state [ 12.762939][ T361] vx20: entered allmulticast mode [ 12.764879][ T361] vx20: entered promiscuous mode [ 12.765221][ T361] br2: port 3(vx20) entered blocking state [ 12.765397][ T361] br2: port 3(vx20) entered forwarding state [ 12.964470][ T38] br2: port 1(w1) entered blocking state [ 12.964667][ T38] br2: port 1(w1) entered forwarding state [ 13.654416][ T402] br2: port 1(w1) entered blocking state [ 13.654635][ T402] br2: port 1(w1) entered disabled state [ 13.655003][ T402] w1: entered allmulticast mode [ 13.662841][ T402] w1: entered promiscuous mode [ 13.684222][ T403] br2: port 1(w1) entered blocking state [ 13.684378][ T403] br2: port 1(w1) entered forwarding state [ 13.745611][ T57] br2: port 1(w1) entered disabled state [ 13.856465][ T410] br2: port 2(vx10) entered blocking state [ 13.856649][ T410] br2: port 2(vx10) entered disabled state [ 13.856824][ T410] vx10: entered allmulticast mode [ 13.858191][ T410] vx10: entered promiscuous mode [ 13.858538][ T410] br2: port 2(vx10) entered blocking state [ 13.858703][ T410] br2: port 2(vx10) entered forwarding state [ 14.031216][ T417] br2: port 3(vx20) entered blocking state [ 14.031416][ T417] br2: port 3(vx20) entered disabled state [ 14.031600][ T417] vx20: entered allmulticast mode [ 14.033050][ T417] vx20: entered promiscuous mode [ 14.033449][ T417] br2: port 3(vx20) entered blocking state [ 14.033626][ T417] br2: port 3(vx20) entered forwarding state [ 14.234334][ T57] br2: port 1(w1) entered blocking state [ 14.234496][ T57] br2: port 1(w1) entered forwarding state [ 14.305883][ C1] [ 14.306131][ C1] ============================= [ 14.306340][ C1] WARNING: suspicious RCU usage [ 14.306484][ C1] 7.2.0-rc1-virtme #1 Not tainted [ 14.306635][ C1] ----------------------------- [ 14.306775][ C1] drivers/net/vxlan/vxlan_core.c:872 suspicious rcu_dereference_protected() usage! [ 14.307029][ C1] [ 14.307029][ C1] other info that might help us debug this: [ 14.307029][ C1] [ 14.307323][ C1] [ 14.307323][ C1] rcu_scheduler_active = 2, debug_locks = 1 [ 14.307542][ C1] 3 locks held by ksoftirqd/1/23: [ 14.307694][ C1] #0: ffffffff9557de40 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x561/0x1490 [ 14.307956][ C1] #1: ffffffff9557de40 (rcu_read_lock){....}-{1:3}, at: ip6_input+0xa1/0x570 [ 14.308208][ C1] #2: ff1100000fe6af68 (&vxlan->hash_lock){+.-.}-{3:3}, at: vxlan_snoop+0x5dc/0x9a0 [vxlan] [ 14.308509][ C1] [ 14.308509][ C1] stack backtrace: [ 14.308699][ C1] CPU: 1 UID: 0 PID: 23 Comm: ksoftirqd/1 Not tainted 7.2.0-rc1-virtme #1 PREEMPT(full) [ 14.308701][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.308703][ C1] Call Trace: [ 14.308705][ C1] [ 14.308707][ C1] dump_stack_lvl+0x6f/0xa0 [ 14.308713][ C1] lockdep_rcu_suspicious.cold+0x37/0x89 [ 14.308718][ C1] vxlan_fdb_create+0xe1b/0x1a70 [vxlan] [ 14.308723][ C1] ? vxlan_find_mac_rcu+0x578/0x6b0 [vxlan] [ 14.308729][ C1] ? lock_acquire.part.0+0xbc/0x260 [ 14.308733][ C1] ? find_held_lock+0x2b/0x80 [ 14.308736][ C1] ? vxlan_open+0x340/0x340 [vxlan] [ 14.308740][ C1] ? __lock_release.isra.0+0x6b/0x1a0 [ 14.308745][ C1] vxlan_fdb_update+0x208/0x3e0 [vxlan] [ 14.308752][ C1] ? vxlan_fdb_create+0x1a70/0x1a70 [vxlan] [ 14.308755][ C1] ? lock_acquire.part.0+0xbc/0x260 [ 14.308758][ C1] ? do_raw_spin_lock+0x131/0x280 [ 14.308762][ C1] vxlan_snoop+0x6ba/0x9a0 [vxlan] [ 14.308769][ C1] vxlan_rcv+0x172e/0x2c20 [vxlan] [ 14.308778][ C1] ? encap_bypass_if_local+0x290/0x290 [vxlan] [ 14.308784][ C1] ? lock_acquire.part.0+0xbc/0x260 [ 14.308787][ C1] ? __lock_release.isra.0+0x6b/0x1a0 [ 14.308789][ C1] ? ip6_protocol_deliver_rcu+0xa78/0x1480 [ 14.308792][ C1] ? encap_bypass_if_local+0x290/0x290 [vxlan] [ 14.308796][ C1] ? udpv6_queue_rcv_one_skb+0x653/0xbf0 [ 14.308799][ C1] udpv6_queue_rcv_one_skb+0x653/0xbf0 [ 14.308803][ C1] udp6_unicast_rcv_skb+0x2b3/0x390 [ 14.308807][ C1] ip6_protocol_deliver_rcu+0x15c/0x1480 [ 14.308813][ C1] ip6_input_finish+0x196/0x590 [ 14.308815][ C1] ip6_input+0x130/0x570 [ 14.308818][ C1] ? ip6_input_finish+0x590/0x590 [ 14.308821][ C1] ? ip6_rcv_core+0xded/0x1be0 [ 14.308825][ C1] ipv6_rcv+0x3c1/0x5a0 [ 14.308827][ C1] ? ip6_rcv_core+0x1be0/0x1be0 [ 14.308831][ C1] ? mark_usage+0x61/0x170 [ 14.308833][ C1] ? __lock_acquire+0x518/0xc20 [ 14.308837][ C1] ? process_backlog+0x561/0x1490 [ 14.308839][ C1] __netif_receive_skb_one_core+0xfc/0x180 [ 14.308841][ C1] ? lock_acquire.part.0+0xbc/0x260 [ 14.308844][ C1] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 14.308846][ C1] ? rcu_is_watching+0x15/0xd0 [ 14.308852][ C1] process_backlog+0x2bc/0x1490 [ 14.308856][ C1] __napi_poll+0xa7/0x3b0 [ 14.308859][ C1] net_rx_action+0x513/0xf50 [ 14.308864][ C1] ? __napi_poll+0x3b0/0x3b0 [ 14.308867][ C1] ? __lock_release.isra.0+0x6b/0x1a0 [ 14.308871][ C1] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 14.308877][ C1] ? __schedule+0xf9e/0x20e0 [ 14.308881][ C1] ? rcu_is_watching+0x15/0xd0 [ 14.308884][ C1] handle_softirqs+0x1d8/0x8f0 [ 14.308890][ C1] ? _local_bh_enable+0xd0/0xd0 [ 14.308892][ C1] ? rcu_is_watching+0x15/0xd0 [ 14.308895][ C1] run_ksoftirqd+0x39/0x60 [ 14.308897][ C1] smpboot_thread_fn+0x2fb/0x9b0 [ 14.308901][ C1] ? sort_range+0x20/0x20 [ 14.308903][ C1] kthread+0x367/0x460 [ 14.308905][ C1] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 14.308907][ C1] ? kthread_affine_node+0x330/0x330 [ 14.308909][ C1] ret_from_fork+0x474/0x6b0 [ 14.308913][ C1] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 14.308917][ C1] ? __switch_to+0x5a3/0xe00 [ 14.308920][ C1] ? kthread_affine_node+0x330/0x330 [ 14.308922][ C1] ret_from_fork_asm+0x11/0x20 [ 14.308930][ C1] [ 22.453157][ T513] GACT probability NOT on [ 121.098078][ T1331] veth3: entered promiscuous mode [ 138.870952][ T2258] veth3: left promiscuous mode [ 139.031080][ T2264] veth3: entered promiscuous mode [ 157.166909][ T3191] veth3: left promiscuous mode [ 157.451338][ T3209] vx20: left allmulticast mode [ 157.451514][ T3209] vx20: left promiscuous mode [ 157.451751][ T3209] br1: port 2(vx20) entered disabled state [ 157.474196][ T3210] vx10: left allmulticast mode [ 157.474415][ T3210] vx10: left promiscuous mode [ 157.474706][ T3210] br1: port 1(vx10) entered disabled state [ 162.593777][ T3215] br1: port 1(vx10) entered blocking state [ 162.593983][ T3215] br1: port 1(vx10) entered disabled state [ 162.594176][ T3215] vx10: entered allmulticast mode [ 162.595599][ T3215] vx10: entered promiscuous mode [ 162.595940][ T3215] br1: port 1(vx10) entered blocking state [ 162.596105][ T3215] br1: port 1(vx10) entered forwarding state [ 162.642192][ T3217] br1: port 2(vx20) entered blocking state [ 162.642856][ T3217] br1: port 2(vx20) entered disabled state [ 162.643034][ T3217] vx20: entered allmulticast mode [ 162.644504][ T3217] vx20: entered promiscuous mode [ 162.644827][ T3217] br1: port 2(vx20) entered blocking state [ 162.644990][ T3217] br1: port 2(vx20) entered forwarding state [ 268.739995][ T4061] veth3: entered promiscuous mode [ 286.576221][ T4988] veth3: left promiscuous mode [ 286.730776][ T4994] veth3: entered promiscuous mode [ 304.669820][ T5921] veth3: left promiscuous mode [ 477.002964][ T12] vx20: left allmulticast mode [ 477.003197][ T12] vx20: left promiscuous mode [ 477.003512][ T12] br2: port 3(vx20) entered disabled state [ 477.006319][ T12] vx10: left allmulticast mode [ 477.006673][ T12] vx10: left promiscuous mode [ 477.007064][ T12] br2: port 2(vx10) entered disabled state [ 477.008918][ T12] w1: left allmulticast mode [ 477.009063][ T12] w1: left promiscuous mode [ 477.009260][ T12] br2: port 1(w1) entered disabled state [ 477.092913][T10475] ip (10475) used greatest stack depth: 23536 bytes left [ 477.130003][ T12] vx20: left allmulticast mode [ 477.130163][ T12] vx20: left promiscuous mode [ 477.130400][ T12] br2: port 3(vx20) entered disabled state [ 477.132012][ T12] vx10: left allmulticast mode [ 477.132146][ T12] vx10: left promiscuous mode [ 477.132364][ T12] br2: port 2(vx10) entered disabled state [ 477.133441][ T12] w1: left allmulticast mode [ 477.133578][ T12] w1: left promiscuous mode [ 477.133780][ T12] br2: port 1(w1) entered disabled state [ 477.820328][T10507] br1: port 4(veth2) entered disabled state [ 477.849206][T10508] veth2: left allmulticast mode [ 477.849404][T10508] veth2: left promiscuous mode [ 477.849629][T10508] br1: port 4(veth2) entered disabled state [ 477.951702][T10512] br1: port 3(veth1) entered disabled state [ 477.974124][T10513] veth1: left allmulticast mode [ 477.974299][T10513] veth1: left promiscuous mode [ 477.974523][T10513] br1: port 3(veth1) entered disabled state [ 478.023334][T10515] vx20: left allmulticast mode [ 478.023496][T10515] vx20: left promiscuous mode [ 478.023718][T10515] br1: port 2(vx20) entered disabled state [ 478.140977][T10519] vx10: left allmulticast mode [ 478.141170][T10519] vx10: left promiscuous mode [ 478.141986][T10519] br1: port 1(vx10) entered disabled state