[ 1135.326852][T21616] eth0: renamed from r1h1 [ 1135.398559][T21618] eth0: renamed from r2h1 [ 1135.503510][T21621] eth2: renamed from r2h2 [ 1135.600576][T21624] eth1: renamed from r2r1 [ 1135.740207][T21630] br0: port 1(eth0) entered blocking state [ 1135.740389][T21630] br0: port 1(eth0) entered disabled state [ 1135.740553][T21630] eth0: entered allmulticast mode [ 1135.741454][T21630] eth0: entered promiscuous mode [ 1135.744628][ T37] br0: port 1(eth0) entered blocking state [ 1135.744796][ T37] br0: port 1(eth0) entered forwarding state [ 1135.764907][T21631] br0: port 2(eth1) entered blocking state [ 1135.765082][T21631] br0: port 2(eth1) entered disabled state [ 1135.765268][T21631] eth1: entered allmulticast mode [ 1135.766157][T21631] eth1: entered promiscuous mode [ 1135.767252][ T45] br0: port 2(eth1) entered blocking state [ 1135.767427][ T45] br0: port 2(eth1) entered forwarding state [ 1148.074169][ T68] eth1: left allmulticast mode [ 1148.074376][ T68] eth1: left promiscuous mode [ 1148.074649][ T68] br0: port 2(eth1) entered disabled state [ 1148.077822][ T68] eth0: left allmulticast mode [ 1148.077963][ T68] eth0: left promiscuous mode [ 1148.078170][ T68] br0: port 1(eth0) entered disabled state [ 1150.336531][T21836] eth0: renamed from r1h1 [ 1150.419789][T21838] eth0: renamed from r2h1 [ 1150.518837][T21841] eth2: renamed from r2h2 [ 1150.613468][T21844] eth1: renamed from r2r1 [ 1150.990655][T21860] br0: port 1(eth0) entered blocking state [ 1150.990880][T21860] br0: port 1(eth0) entered disabled state [ 1150.991106][T21860] eth0: entered allmulticast mode [ 1150.992091][T21860] eth0: entered promiscuous mode [ 1150.993609][ T94] br0: port 1(eth0) entered blocking state [ 1150.993813][ T94] br0: port 1(eth0) entered forwarding state [ 1151.021370][T21861] br0: port 2(eth1) entered blocking state [ 1151.021545][T21861] br0: port 2(eth1) entered disabled state [ 1151.021711][T21861] eth1: entered allmulticast mode [ 1151.023026][T21861] eth1: entered promiscuous mode [ 1151.024268][ T45] br0: port 2(eth1) entered blocking state [ 1151.024432][ T45] br0: port 2(eth1) entered forwarding state [ 1163.367219][ T68] eth1: left allmulticast mode [ 1163.367382][ T68] eth1: left promiscuous mode [ 1163.367591][ T68] br0: port 2(eth1) entered disabled state [ 1163.368695][ T68] eth0: left allmulticast mode [ 1163.368822][ T68] eth0: left promiscuous mode [ 1163.369009][ T68] br0: port 1(eth0) entered disabled state [ 1165.665652][T22067] eth0: renamed from r1h1 [ 1165.745681][T22069] eth0: renamed from r2h1 [ 1165.843472][T22072] eth2: renamed from r2h2 [ 1165.942454][T22075] eth1: renamed from r2r1 [ 1166.081996][T22080] br0: port 1(eth0) entered blocking state [ 1166.082295][T22080] br0: port 1(eth0) entered disabled state [ 1166.082469][T22080] eth0: entered allmulticast mode [ 1166.083427][T22080] eth0: entered promiscuous mode [ 1166.084815][ T39] br0: port 1(eth0) entered blocking state [ 1166.084988][ T39] br0: port 1(eth0) entered forwarding state [ 1166.111184][T22081] br0: port 2(eth1) entered blocking state [ 1166.111357][T22081] br0: port 2(eth1) entered disabled state [ 1166.111521][T22081] eth1: entered allmulticast mode [ 1166.112617][T22081] eth1: entered promiscuous mode [ 1166.113643][ T39] br0: port 2(eth1) entered blocking state [ 1166.113843][ T39] br0: port 2(eth1) entered forwarding state [ 1168.938590][T22128] [ 1168.938738][T22128] ============================= [ 1168.938917][T22128] WARNING: suspicious RCU usage [ 1168.939087][T22128] 7.0.0-rc1-virtme #1 Not tainted [ 1168.939270][T22128] ----------------------------- [ 1168.939447][T22128] net/ipv6/ip6_fib.c:111 suspicious rcu_dereference_protected() usage! [ 1168.939678][T22128] [ 1168.939678][T22128] other info that might help us debug this: [ 1168.939678][T22128] [ 1168.939967][T22128] [ 1168.939967][T22128] rcu_scheduler_active = 2, debug_locks = 1 [ 1168.940208][T22128] 1 lock held by ip/22128: [ 1168.940383][T22128] #0: ffffffffbe0a1d28 (rtnl_mutex){+.+.}-{4:4}, at: rtm_new_nexthop+0x1a6/0x8c0 [ 1168.940656][T22128] [ 1168.940656][T22128] stack backtrace: [ 1168.940857][T22128] CPU: 2 UID: 0 PID: 22128 Comm: ip Not tainted 7.0.0-rc1-virtme #1 PREEMPT(full) [ 1168.940861][T22128] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1168.940863][T22128] Call Trace: [ 1168.940865][T22128] [ 1168.940867][T22128] dump_stack_lvl+0x6f/0xa0 [ 1168.940873][T22128] lockdep_rcu_suspicious.cold+0x4f/0xad [ 1168.940879][T22128] fib6_update_sernum+0xfb/0x130 [ 1168.940883][T22128] nh_rt_cache_flush+0x8d/0x380 [ 1168.940887][T22128] replace_nexthop+0x347/0x6e0 [ 1168.940892][T22128] insert_nexthop+0x41e/0x7a0 [ 1168.940894][T22128] ? nexthop_create+0x307/0x770 [ 1168.940897][T22128] rtm_new_nexthop+0x3a0/0x8c0 [ 1168.940900][T22128] ? insert_nexthop+0x7a0/0x7a0 [ 1168.940902][T22128] ? lock_acquire.part.0+0xbc/0x260 [ 1168.940905][T22128] ? find_held_lock+0x2b/0x80 [ 1168.940912][T22128] ? lock_acquire.part.0+0xbc/0x260 [ 1168.940913][T22128] ? find_held_lock+0x2b/0x80 [ 1168.940918][T22128] ? find_held_lock+0x2b/0x80 [ 1168.940920][T22128] ? insert_nexthop+0x7a0/0x7a0 [ 1168.940922][T22128] ? __lock_release.isra.0+0x59/0x170 [ 1168.940926][T22128] ? insert_nexthop+0x7a0/0x7a0 [ 1168.940928][T22128] rtnetlink_rcv_msg+0x6fe/0xb90 [ 1168.940933][T22128] ? rtnl_fdb_dump+0x620/0x620 [ 1168.940935][T22128] ? __lock_acquire+0x577/0xc10 [ 1168.940938][T22128] ? lock_acquire.part.0+0xbc/0x260 [ 1168.940939][T22128] ? find_held_lock+0x2b/0x80 [ 1168.940943][T22128] netlink_rcv_skb+0x123/0x380 [ 1168.940945][T22128] ? rtnl_fdb_dump+0x620/0x620 [ 1168.940948][T22128] ? netlink_ack+0xce0/0xce0 [ 1168.940953][T22128] ? netlink_deliver_tap+0xc5/0x330 [ 1168.940956][T22128] ? netlink_deliver_tap+0x13f/0x330 [ 1168.940960][T22128] netlink_unicast+0x4a3/0x770 [ 1168.940963][T22128] ? netlink_attachskb+0x810/0x810 [ 1168.940964][T22128] ? __alloc_skb+0x4c4/0x5f0 [ 1168.940967][T22128] ? napi_skb_cache_get+0x7a0/0x7a0 [ 1168.940968][T22128] ? lock_acquire.part.0+0xbc/0x260 [ 1168.940970][T22128] ? __lock_acquire+0x577/0xc10 [ 1168.940973][T22128] netlink_sendmsg+0x735/0xc60 [ 1168.940977][T22128] ? netlink_unicast+0x770/0x770 [ 1168.940980][T22128] ? __might_fault+0x97/0x140 [ 1168.940985][T22128] ____sys_sendmsg+0x419/0x850 [ 1168.940987][T22128] ? copy_msghdr_from_user+0x270/0x430 [ 1168.940989][T22128] ? get_timestamp.constprop.0+0x390/0x390 [ 1168.940990][T22128] ? move_addr_to_kernel+0x40/0x40 [ 1168.940993][T22128] ? stack_depot_save_flags+0x30d/0x6e0 [ 1168.940997][T22128] ? rcu_read_lock_any_held+0x3c/0x90 [ 1168.941002][T22128] ___sys_sendmsg+0xfd/0x180 [ 1168.941004][T22128] ? __call_rcu_common.constprop.0+0xa6/0xa00 [ 1168.941007][T22128] ? copy_msghdr_from_user+0x430/0x430 [ 1168.941021][T22128] __sys_sendmsg+0x124/0x1c0 [ 1168.941023][T22128] ? __sys_sendmsg_sock+0x20/0x20 [ 1168.941025][T22128] ? lockdep_hardirqs_on+0x84/0x130 [ 1168.941029][T22128] ? __call_rcu_common.constprop.0+0x3bd/0xa00 [ 1168.941035][T22128] ? do_raw_spin_unlock+0x59/0x250 [ 1168.941037][T22128] ? rcu_is_watching+0x15/0xd0 [ 1168.941040][T22128] do_syscall_64+0x117/0xfc0 [ 1168.941042][T22128] ? exc_page_fault+0xaf/0xd0 [ 1168.941044][T22128] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 1168.941046][T22128] RIP: 0033:0x7f297c23cc5e [ 1168.941050][T22128] 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 [ 1168.941052][T22128] RSP: 002b:00007ffe4e3998f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 1168.941055][T22128] RAX: ffffffffffffffda RBX: 000000000048a910 RCX: 00007f297c23cc5e [ 1168.941056][T22128] RDX: 0000000000000000 RSI: 00007ffe4e3999b0 RDI: 0000000000000005 [ 1168.941057][T22128] RBP: 00007ffe4e399900 R08: 0000000000000000 R09: 0000000000000000 [ 1168.941058][T22128] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe4e39b726 [ 1168.941059][T22128] R13: 0000000069a488f4 R14: 0000000000000008 R15: 000000000049b620 [ 1168.941065][T22128] [ 1178.590029][ T68] eth1: left allmulticast mode [ 1178.591270][ T68] eth1: left promiscuous mode [ 1178.591548][ T68] br0: port 2(eth1) entered disabled state [ 1178.592758][ T68] eth0: left allmulticast mode [ 1178.592929][ T68] eth0: left promiscuous mode [ 1178.593197][ T68] br0: port 1(eth0) entered disabled state [ 1180.835542][T22298] eth0: renamed from r1h1 [ 1180.908493][T22300] eth0: renamed from r2h1 [ 1180.998724][T22303] eth2: renamed from r2h2 [ 1181.108513][T22306] eth1: renamed from r2r1 [ 1181.475071][T22321] br0: port 1(eth0) entered blocking state [ 1181.475262][T22321] br0: port 1(eth0) entered disabled state [ 1181.475430][T22321] eth0: entered allmulticast mode [ 1181.476325][T22321] eth0: entered promiscuous mode [ 1181.478048][ T39] br0: port 1(eth0) entered blocking state [ 1181.478259][ T39] br0: port 1(eth0) entered forwarding state [ 1181.498770][T22322] br0: port 2(eth1) entered blocking state [ 1181.498953][T22322] br0: port 2(eth1) entered disabled state [ 1181.499137][T22322] eth1: entered allmulticast mode [ 1181.500040][T22322] eth1: entered promiscuous mode [ 1181.508439][ T45] br0: port 2(eth1) entered blocking state [ 1181.508606][ T45] br0: port 2(eth1) entered forwarding state [ 1193.991080][ T68] eth1: left allmulticast mode [ 1193.991245][ T68] eth1: left promiscuous mode [ 1193.991454][ T68] br0: port 2(eth1) entered disabled state [ 1193.992693][ T68] eth0: left allmulticast mode [ 1193.992823][ T68] eth0: left promiscuous mode [ 1193.993014][ T68] br0: port 1(eth0) entered disabled state