[ 2125.141257][T24928] eth0: renamed from r1h1 [ 2125.224328][T24930] eth0: renamed from r2h1 [ 2125.323956][T24933] eth2: renamed from r2h2 [ 2125.414230][T24936] eth1: renamed from r2r1 [ 2125.543479][T24942] br0: port 1(eth0) entered blocking state [ 2125.543697][T24942] br0: port 1(eth0) entered disabled state [ 2125.544320][T24942] eth0: entered allmulticast mode [ 2125.545466][T24942] eth0: entered promiscuous mode [ 2125.546788][ T38] br0: port 1(eth0) entered blocking state [ 2125.546965][ T38] br0: port 1(eth0) entered forwarding state [ 2125.573316][T24943] br0: port 2(eth1) entered blocking state [ 2125.573490][T24943] br0: port 2(eth1) entered disabled state [ 2125.573655][T24943] eth1: entered allmulticast mode [ 2125.574821][T24943] eth1: entered promiscuous mode [ 2125.575777][ T37] br0: port 2(eth1) entered blocking state [ 2125.575995][ T37] br0: port 2(eth1) entered forwarding state [ 2137.584941][ T12] eth1: left allmulticast mode [ 2137.585115][ T12] eth1: left promiscuous mode [ 2137.585342][ T12] br0: port 2(eth1) entered disabled state [ 2137.587402][ T12] eth0: left allmulticast mode [ 2137.587544][ T12] eth0: left promiscuous mode [ 2137.587746][ T12] br0: port 1(eth0) entered disabled state [ 2139.462316][T25150] eth0: renamed from r1h1 [ 2139.538352][T25152] eth0: renamed from r2h1 [ 2139.643491][T25155] eth2: renamed from r2h2 [ 2139.743182][T25158] eth1: renamed from r2r1 [ 2140.101545][T25173] br0: port 1(eth0) entered blocking state [ 2140.101738][T25173] br0: port 1(eth0) entered disabled state [ 2140.101918][T25173] eth0: entered allmulticast mode [ 2140.102985][T25173] eth0: entered promiscuous mode [ 2140.104258][ T36] br0: port 1(eth0) entered blocking state [ 2140.104435][ T36] br0: port 1(eth0) entered forwarding state [ 2140.126228][T25174] br0: port 2(eth1) entered blocking state [ 2140.126407][T25174] br0: port 2(eth1) entered disabled state [ 2140.126575][T25174] eth1: entered allmulticast mode [ 2140.127630][T25174] eth1: entered promiscuous mode [ 2140.129331][ T36] br0: port 2(eth1) entered blocking state [ 2140.129528][ T36] br0: port 2(eth1) entered forwarding state [ 2152.189692][ T12] eth1: left allmulticast mode [ 2152.189971][ T12] eth1: left promiscuous mode [ 2152.190187][ T12] br0: port 2(eth1) entered disabled state [ 2152.191957][ T12] eth0: left allmulticast mode [ 2152.192088][ T12] eth0: left promiscuous mode [ 2152.192285][ T12] br0: port 1(eth0) entered disabled state [ 2154.131290][T25380] eth0: renamed from r1h1 [ 2154.199424][T25382] eth0: renamed from r2h1 [ 2154.293348][T25385] eth2: renamed from r2h2 [ 2154.396628][T25388] eth1: renamed from r2r1 [ 2154.510599][T25393] br0: port 1(eth0) entered blocking state [ 2154.510780][T25393] br0: port 1(eth0) entered disabled state [ 2154.512037][T25393] eth0: entered allmulticast mode [ 2154.513130][T25393] eth0: entered promiscuous mode [ 2154.514328][ T36] br0: port 1(eth0) entered blocking state [ 2154.514490][ T36] br0: port 1(eth0) entered forwarding state [ 2154.543544][T25394] br0: port 2(eth1) entered blocking state [ 2154.543721][T25394] br0: port 2(eth1) entered disabled state [ 2154.543903][T25394] eth1: entered allmulticast mode [ 2154.545152][T25394] eth1: entered promiscuous mode [ 2154.546066][ T36] br0: port 2(eth1) entered blocking state [ 2154.546238][ T36] br0: port 2(eth1) entered forwarding state [ 2157.318763][T25441] [ 2157.318874][T25441] ============================= [ 2157.319004][T25441] WARNING: suspicious RCU usage [ 2157.319129][T25441] 7.0.0-rc3-virtme #1 Not tainted [ 2157.319255][T25441] ----------------------------- [ 2157.319385][T25441] net/ipv6/ip6_fib.c:111 suspicious rcu_dereference_protected() usage! [ 2157.319571][T25441] [ 2157.319571][T25441] other info that might help us debug this: [ 2157.319571][T25441] [ 2157.319821][T25441] [ 2157.319821][T25441] rcu_scheduler_active = 2, debug_locks = 1 [ 2157.320446][T25441] 1 lock held by ip/25441: [ 2157.320572][T25441] #0: ffffffff97ca2728 (rtnl_mutex){+.+.}-{4:4}, at: rtm_new_nexthop+0x1a6/0x8c0 [ 2157.320801][T25441] [ 2157.320801][T25441] stack backtrace: [ 2157.320957][T25441] CPU: 3 UID: 0 PID: 25441 Comm: ip Not tainted 7.0.0-rc3-virtme #1 PREEMPT(full) [ 2157.320960][T25441] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2157.320962][T25441] Call Trace: [ 2157.320964][T25441] [ 2157.320965][T25441] dump_stack_lvl+0x6f/0xa0 [ 2157.320970][T25441] lockdep_rcu_suspicious.cold+0x4f/0xad [ 2157.320976][T25441] fib6_update_sernum+0xfb/0x130 [ 2157.320980][T25441] nh_rt_cache_flush+0x8d/0x380 [ 2157.320984][T25441] replace_nexthop+0x347/0x6e0 [ 2157.320989][T25441] insert_nexthop+0x41e/0x7a0 [ 2157.320991][T25441] ? nexthop_create+0x307/0x770 [ 2157.320994][T25441] rtm_new_nexthop+0x3a0/0x8c0 [ 2157.320998][T25441] ? insert_nexthop+0x7a0/0x7a0 [ 2157.321000][T25441] ? lock_acquire.part.0+0xbc/0x260 [ 2157.321003][T25441] ? find_held_lock+0x2b/0x80 [ 2157.321009][T25441] ? lock_acquire.part.0+0xbc/0x260 [ 2157.321011][T25441] ? find_held_lock+0x2b/0x80 [ 2157.321016][T25441] ? find_held_lock+0x2b/0x80 [ 2157.321018][T25441] ? insert_nexthop+0x7a0/0x7a0 [ 2157.321021][T25441] ? __lock_release.isra.0+0x59/0x170 [ 2157.321024][T25441] ? insert_nexthop+0x7a0/0x7a0 [ 2157.321026][T25441] rtnetlink_rcv_msg+0x6fe/0xb90 [ 2157.321031][T25441] ? rtnl_fdb_dump+0x620/0x620 [ 2157.321033][T25441] ? __lock_acquire+0x577/0xc10 [ 2157.321036][T25441] ? lock_acquire.part.0+0xbc/0x260 [ 2157.321038][T25441] ? find_held_lock+0x2b/0x80 [ 2157.321041][T25441] netlink_rcv_skb+0x123/0x380 [ 2157.321044][T25441] ? rtnl_fdb_dump+0x620/0x620 [ 2157.321047][T25441] ? netlink_ack+0xce0/0xce0 [ 2157.321052][T25441] ? netlink_deliver_tap+0xc5/0x330 [ 2157.321054][T25441] ? netlink_deliver_tap+0x13f/0x330 [ 2157.321057][T25441] netlink_unicast+0x4a3/0x770 [ 2157.321061][T25441] ? netlink_attachskb+0x810/0x810 [ 2157.321062][T25441] ? __alloc_skb+0x4c4/0x5f0 [ 2157.321065][T25441] ? napi_skb_cache_get+0x7a0/0x7a0 [ 2157.321066][T25441] ? lock_acquire.part.0+0xbc/0x260 [ 2157.321069][T25441] ? __lock_acquire+0x577/0xc10 [ 2157.321072][T25441] netlink_sendmsg+0x735/0xc60 [ 2157.321075][T25441] ? netlink_unicast+0x770/0x770 [ 2157.321078][T25441] ? __might_fault+0x97/0x140 [ 2157.321084][T25441] ____sys_sendmsg+0x419/0x850 [ 2157.321087][T25441] ? copy_msghdr_from_user+0x270/0x430 [ 2157.321089][T25441] ? get_timestamp.constprop.0+0x390/0x390 [ 2157.321090][T25441] ? move_addr_to_kernel+0x40/0x40 [ 2157.321093][T25441] ? stack_depot_save_flags+0x30d/0x6e0 [ 2157.321097][T25441] ? rcu_read_lock_any_held+0x3c/0x90 [ 2157.321103][T25441] ___sys_sendmsg+0xfd/0x180 [ 2157.321104][T25441] ? __call_rcu_common.constprop.0+0xa6/0xa00 [ 2157.321108][T25441] ? copy_msghdr_from_user+0x430/0x430 [ 2157.321121][T25441] __sys_sendmsg+0x124/0x1c0 [ 2157.321124][T25441] ? __sys_sendmsg_sock+0x20/0x20 [ 2157.321126][T25441] ? lockdep_hardirqs_on+0x84/0x130 [ 2157.321130][T25441] ? __call_rcu_common.constprop.0+0x3bd/0xa00 [ 2157.321135][T25441] ? do_raw_spin_unlock+0x59/0x250 [ 2157.321137][T25441] ? rcu_is_watching+0x15/0xd0 [ 2157.321141][T25441] do_syscall_64+0x117/0xfc0 [ 2157.321142][T25441] ? exc_page_fault+0xaf/0xd0 [ 2157.321145][T25441] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2157.321147][T25441] RIP: 0033:0x7fb8f4182c5e [ 2157.321151][T25441] Code: 4d 89 d8 e8 34 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa [ 2157.321153][T25441] RSP: 002b:00007ffc83502f10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 2157.321155][T25441] RAX: ffffffffffffffda RBX: 000000000048a950 RCX: 00007fb8f4182c5e [ 2157.321157][T25441] RDX: 0000000000000000 RSI: 00007ffc83502fd0 RDI: 0000000000000005 [ 2157.321158][T25441] RBP: 00007ffc83502f20 R08: 0000000000000000 R09: 0000000000000000 [ 2157.321158][T25441] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc83505895 [ 2157.321159][T25441] R13: 0000000069b9a1dd R14: 0000000000000008 R15: 000000000049c620 [ 2157.321165][T25441] [ 2166.759671][ T12] eth1: left allmulticast mode [ 2166.759865][ T12] eth1: left promiscuous mode [ 2166.760085][ T12] br0: port 2(eth1) entered disabled state [ 2166.762459][ T12] eth0: left allmulticast mode [ 2166.762608][ T12] eth0: left promiscuous mode [ 2166.762813][ T12] br0: port 1(eth0) entered disabled state [ 2168.681549][T25613] eth0: renamed from r1h1 [ 2168.755441][T25615] eth0: renamed from r2h1 [ 2168.844295][T25618] eth2: renamed from r2h2 [ 2168.943371][T25621] eth1: renamed from r2r1 [ 2169.319571][T25636] br0: port 1(eth0) entered blocking state [ 2169.319759][T25636] br0: port 1(eth0) entered disabled state [ 2169.319944][T25636] eth0: entered allmulticast mode [ 2169.321007][T25636] eth0: entered promiscuous mode [ 2169.322284][ T7644] br0: port 1(eth0) entered blocking state [ 2169.322470][ T7644] br0: port 1(eth0) entered forwarding state [ 2169.341368][T25637] br0: port 2(eth1) entered blocking state [ 2169.341580][T25637] br0: port 2(eth1) entered disabled state [ 2169.341801][T25637] eth1: entered allmulticast mode [ 2169.342934][T25637] eth1: entered promiscuous mode [ 2169.344261][T24986] br0: port 2(eth1) entered blocking state [ 2169.344469][T24986] br0: port 2(eth1) entered forwarding state [ 2181.523814][ T12] eth1: left allmulticast mode [ 2181.524109][ T12] eth1: left promiscuous mode [ 2181.524324][ T12] br0: port 2(eth1) entered disabled state [ 2181.525618][ T12] eth0: left allmulticast mode [ 2181.525823][ T12] eth0: left promiscuous mode [ 2181.526055][ T12] br0: port 1(eth0) entered disabled state