[ 1173.635753][T24885] IPv6: Can't replace route, no match found [ 1174.587045][T24955] IPv6: Can't replace route, no match found [ 1194.697096][T25900] Mirror/redirect action on [ 1264.070722][T26561] veth2: entered promiscuous mode [ 1266.087373][T26561] veth2: left promiscuous mode [ 1266.195470][T26564] veth2: entered promiscuous mode [ 1266.209007][T26564] veth2: left promiscuous mode [ 1266.317434][T26567] veth2: entered promiscuous mode [ 1266.329793][T26567] veth2: left promiscuous mode [ 1266.426410][T26570] veth2: entered promiscuous mode [ 1266.444028][T26570] veth2: left promiscuous mode [ 1266.536788][T26573] veth2: entered promiscuous mode [ 1266.558349][T26573] veth2: left promiscuous mode [ 1266.637073][T26581] [ 1266.637354][T26581] ============================= [ 1266.637565][T26581] WARNING: suspicious RCU usage [ 1266.637748][T26581] 7.0.0-rc3-virtme #1 Not tainted [ 1266.637943][T26581] ----------------------------- [ 1266.638138][T26581] ./include/net/neighbour.h:312 suspicious rcu_dereference_check() usage! [ 1266.638413][T26581] [ 1266.638413][T26581] other info that might help us debug this: [ 1266.638413][T26581] [ 1266.638725][T26581] [ 1266.638725][T26581] rcu_scheduler_active = 2, debug_locks = 1 [ 1266.638986][T26581] 3 locks held by ip/26581: [ 1266.639201][T26581] #0: ff1100001da39a30 (&tb->tb6_lock){+.-.}-{3:3}, at: ip6_route_add+0x95/0x160 [ 1266.639512][T26581] #1: ffffffff86f8c900 (rcu_read_lock_bh){....}-{1:3}, at: fib6_nh_age_exceptions.part.0+0x24/0x200 [ 1266.639844][T26581] #2: ffffffff877afbd8 (rt6_exception_lock){+.-.}-{3:3}, at: fib6_nh_age_exceptions.part.0+0x66/0x200 [ 1266.640176][T26581] [ 1266.640176][T26581] stack backtrace: [ 1266.640420][T26581] CPU: 2 UID: 0 PID: 26581 Comm: ip Not tainted 7.0.0-rc3-virtme #1 PREEMPT(full) [ 1266.640424][T26581] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1266.640426][T26581] Call Trace: [ 1266.640428][T26581] [ 1266.640430][T26581] dump_stack_lvl+0x6f/0xa0 [ 1266.640437][T26581] lockdep_rcu_suspicious.cold+0x4f/0xad [ 1266.640443][T26581] ___neigh_lookup_noref.constprop.0+0x4d0/0x8e0 [ 1266.640448][T26581] rt6_age_examine_exception+0x209/0x510 [ 1266.640452][T26581] ? __ip6_del_rt+0x160/0x160 [ 1266.640455][T26581] ? fib6_nh_get_excptn_bucket+0x6e/0x150 [ 1266.640458][T26581] fib6_nh_age_exceptions.part.0+0xce/0x200 [ 1266.640462][T26581] rt6_age_exceptions+0xff/0x150 [ 1266.640464][T26581] ? rt6_flush_exceptions+0x1a0/0x1a0 [ 1266.640466][T26581] ? rcu_is_watching+0x15/0xd0 [ 1266.640470][T26581] ? rcu_is_watching+0x15/0xd0 [ 1266.640472][T26581] fib6_age_exceptions+0xc5/0x250 [ 1266.640476][T26581] fib6_add_rt2node+0x25c6/0x3f90 [ 1266.640478][T26581] ? pcpu_alloc_noprof+0x635/0xa60 [ 1266.640485][T26581] ? fib6_age_exceptions+0x250/0x250 [ 1266.640488][T26581] ? fib6_add_1.constprop.0+0x512/0x1620 [ 1266.640494][T26581] ? fib6_add+0x36a/0xe40 [ 1266.640495][T26581] fib6_add+0x36a/0xe40 [ 1266.640498][T26581] ? lock_acquire.part.0+0xbc/0x260 [ 1266.640501][T26581] ? fib6_add_rt2node+0x3f90/0x3f90 [ 1266.640506][T26581] ip6_route_add+0xa7/0x160 [ 1266.640508][T26581] ? ip6_route_multipath_add+0x13a0/0x13a0 [ 1266.640510][T26581] inet6_rtm_newroute+0x10a/0x120 [ 1266.640513][T26581] ? ip6_route_multipath_add+0x13a0/0x13a0 [ 1266.640514][T26581] ? lock_acquire.part.0+0xbc/0x260 [ 1266.640515][T26581] ? find_held_lock+0x2b/0x80 [ 1266.640531][T26581] ? __lock_release.isra.0+0x59/0x170 [ 1266.640533][T26581] ? rtnetlink_rcv_msg+0x6dc/0xb90 [ 1266.640538][T26581] ? ip6_route_multipath_add+0x13a0/0x13a0 [ 1266.640539][T26581] rtnetlink_rcv_msg+0x6fe/0xb90 [ 1266.640543][T26581] ? rtnl_fdb_dump+0x620/0x620 [ 1266.640545][T26581] ? __lock_acquire+0x577/0xc10 [ 1266.640549][T26581] ? lock_acquire.part.0+0xbc/0x260 [ 1266.640550][T26581] ? find_held_lock+0x2b/0x80 [ 1266.640553][T26581] netlink_rcv_skb+0x123/0x380 [ 1266.640556][T26581] ? rtnl_fdb_dump+0x620/0x620 [ 1266.640559][T26581] ? netlink_ack+0xce0/0xce0 [ 1266.640565][T26581] ? netlink_deliver_tap+0xc5/0x330 [ 1266.640566][T26581] ? netlink_deliver_tap+0x13f/0x330 [ 1266.640570][T26581] netlink_unicast+0x4a3/0x770 [ 1266.640573][T26581] ? netlink_attachskb+0x810/0x810 [ 1266.640575][T26581] ? __alloc_skb+0x4c4/0x5f0 [ 1266.640578][T26581] ? napi_skb_cache_get+0x7a0/0x7a0 [ 1266.640579][T26581] ? lock_acquire.part.0+0xbc/0x260 [ 1266.640582][T26581] ? __lock_acquire+0x577/0xc10 [ 1266.640585][T26581] netlink_sendmsg+0x735/0xc60 [ 1266.640588][T26581] ? netlink_unicast+0x770/0x770 [ 1266.640591][T26581] ? __might_fault+0x97/0x140 [ 1266.640596][T26581] ____sys_sendmsg+0x419/0x850 [ 1266.640598][T26581] ? copy_msghdr_from_user+0x270/0x430 [ 1266.640600][T26581] ? get_timestamp.constprop.0+0x390/0x390 [ 1266.640602][T26581] ? move_addr_to_kernel+0x40/0x40 [ 1266.640605][T26581] ? stack_depot_save_flags+0x30d/0x6e0 [ 1266.640609][T26581] ? rcu_read_lock_any_held+0x3c/0x90 [ 1266.640614][T26581] ___sys_sendmsg+0xfd/0x180 [ 1266.640616][T26581] ? __call_rcu_common.constprop.0+0xa6/0xa00 [ 1266.640619][T26581] ? copy_msghdr_from_user+0x430/0x430 [ 1266.640633][T26581] __sys_sendmsg+0x124/0x1c0 [ 1266.640636][T26581] ? __sys_sendmsg_sock+0x20/0x20 [ 1266.640637][T26581] ? lockdep_hardirqs_on+0x84/0x130 [ 1266.640641][T26581] ? __call_rcu_common.constprop.0+0x3bd/0xa00 [ 1266.640646][T26581] ? do_raw_spin_unlock+0x59/0x250 [ 1266.640649][T26581] ? rcu_is_watching+0x15/0xd0 [ 1266.640652][T26581] do_syscall_64+0x117/0xfc0 [ 1266.640654][T26581] ? exc_page_fault+0xaf/0xd0 [ 1266.640657][T26581] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 1266.640659][T26581] RIP: 0033:0x7fe5fcb28c5e [ 1266.640663][T26581] 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 [ 1266.640665][T26581] RSP: 002b:00007ffe67fb6a50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 1266.640668][T26581] RAX: ffffffffffffffda RBX: 00007ffe67fb9060 RCX: 00007fe5fcb28c5e [ 1266.640669][T26581] RDX: 0000000000000000 RSI: 00007ffe67fb6b10 RDI: 0000000000000005 [ 1266.640670][T26581] RBP: 00007ffe67fb6a60 R08: 0000000000000000 R09: 0000000000000000 [ 1266.640671][T26581] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 1266.640672][T26581] R13: 0000000069bbc167 R14: 00007ffe67fb9070 R15: 000000000049c620 [ 1266.640678][T26581] [ 1267.186476][T26609] veth2: entered promiscuous mode [ 1267.203216][T26609] veth2: left promiscuous mode [ 1339.124815][T30545] veth2: entered promiscuous mode [ 1339.137701][T30545] veth2: left promiscuous mode [ 1340.320517][T30557] veth2: entered promiscuous mode [ 1340.337399][T30557] veth2: left promiscuous mode [ 1341.575059][T30571] veth2: entered promiscuous mode [ 1341.591736][T30571] veth2: left promiscuous mode