[ 747.709724][T13258] IPv6: Can't replace route, no match found [ 748.648727][T13328] IPv6: Can't replace route, no match found [ 768.129558][T14265] Mirror/redirect action on [ 837.191607][T14920] veth2: entered promiscuous mode [ 838.210806][T14920] veth2: left promiscuous mode [ 838.325576][T14923] veth2: entered promiscuous mode [ 838.338944][T14923] veth2: left promiscuous mode [ 838.444517][T14926] veth2: entered promiscuous mode [ 838.456819][T14926] veth2: left promiscuous mode [ 838.559006][T14929] veth2: entered promiscuous mode [ 838.572422][T14929] veth2: left promiscuous mode [ 838.676372][T14932] veth2: entered promiscuous mode [ 838.689637][T14932] veth2: left promiscuous mode [ 838.774472][T14940] [ 838.774715][T14940] ============================= [ 838.774856][T14940] WARNING: suspicious RCU usage [ 838.775303][T14940] 7.0.0-rc3-virtme #1 Not tainted [ 838.775436][T14940] ----------------------------- [ 838.775577][T14940] ./include/net/neighbour.h:312 suspicious rcu_dereference_check() usage! [ 838.775779][T14940] [ 838.775779][T14940] other info that might help us debug this: [ 838.775779][T14940] [ 838.776046][T14940] [ 838.776046][T14940] rcu_scheduler_active = 2, debug_locks = 1 [ 838.776248][T14940] 3 locks held by ip/14940: [ 838.776382][T14940] #0: ff11000005b7a030 (&tb->tb6_lock){+.-.}-{3:3}, at: ip6_route_add+0x95/0x160 [ 838.776638][T14940] #1: ffffffffa7d8c900 (rcu_read_lock_bh){....}-{1:3}, at: fib6_nh_age_exceptions.part.0+0x24/0x200 [ 838.776909][T14940] #2: ffffffffa85afbd8 (rt6_exception_lock){+.-.}-{3:3}, at: fib6_nh_age_exceptions.part.0+0x66/0x200 [ 838.777172][T14940] [ 838.777172][T14940] stack backtrace: [ 838.777337][T14940] CPU: 0 UID: 0 PID: 14940 Comm: ip Not tainted 7.0.0-rc3-virtme #1 PREEMPT(full) [ 838.777340][T14940] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 838.777341][T14940] Call Trace: [ 838.777343][T14940] [ 838.777344][T14940] dump_stack_lvl+0x6f/0xa0 [ 838.777350][T14940] lockdep_rcu_suspicious.cold+0x4f/0xad [ 838.777356][T14940] ___neigh_lookup_noref.constprop.0+0x4d0/0x8e0 [ 838.777361][T14940] rt6_age_examine_exception+0x209/0x510 [ 838.777365][T14940] ? __ip6_del_rt+0x160/0x160 [ 838.777368][T14940] ? fib6_nh_get_excptn_bucket+0x6e/0x150 [ 838.777371][T14940] fib6_nh_age_exceptions.part.0+0xce/0x200 [ 838.777375][T14940] rt6_age_exceptions+0xff/0x150 [ 838.777377][T14940] ? rt6_flush_exceptions+0x1a0/0x1a0 [ 838.777379][T14940] ? rcu_is_watching+0x15/0xd0 [ 838.777383][T14940] ? rcu_is_watching+0x15/0xd0 [ 838.777385][T14940] fib6_age_exceptions+0xc5/0x250 [ 838.777388][T14940] fib6_add_rt2node+0x25c6/0x3f90 [ 838.777390][T14940] ? pcpu_alloc_noprof+0x635/0xa60 [ 838.777398][T14940] ? fib6_age_exceptions+0x250/0x250 [ 838.777401][T14940] ? fib6_add_1.constprop.0+0x512/0x1620 [ 838.777407][T14940] ? fib6_add+0x36a/0xe40 [ 838.777408][T14940] fib6_add+0x36a/0xe40 [ 838.777411][T14940] ? lock_acquire.part.0+0xbc/0x260 [ 838.777414][T14940] ? fib6_add_rt2node+0x3f90/0x3f90 [ 838.777419][T14940] ip6_route_add+0xa7/0x160 [ 838.777421][T14940] ? ip6_route_multipath_add+0x13a0/0x13a0 [ 838.777424][T14940] inet6_rtm_newroute+0x10a/0x120 [ 838.777426][T14940] ? ip6_route_multipath_add+0x13a0/0x13a0 [ 838.777427][T14940] ? lock_acquire.part.0+0xbc/0x260 [ 838.777429][T14940] ? find_held_lock+0x2b/0x80 [ 838.777437][T14940] ? __lock_release.isra.0+0x59/0x170 [ 838.777439][T14940] ? rtnetlink_rcv_msg+0x6dc/0xb90 [ 838.777444][T14940] ? ip6_route_multipath_add+0x13a0/0x13a0 [ 838.777445][T14940] rtnetlink_rcv_msg+0x6fe/0xb90 [ 838.777449][T14940] ? rtnl_fdb_dump+0x620/0x620 [ 838.777451][T14940] ? __lock_acquire+0x577/0xc10 [ 838.777454][T14940] ? lock_acquire.part.0+0xbc/0x260 [ 838.777456][T14940] ? find_held_lock+0x2b/0x80 [ 838.777459][T14940] netlink_rcv_skb+0x123/0x380 [ 838.777462][T14940] ? rtnl_fdb_dump+0x620/0x620 [ 838.777465][T14940] ? netlink_ack+0xce0/0xce0 [ 838.777471][T14940] ? netlink_deliver_tap+0xc5/0x330 [ 838.777472][T14940] ? netlink_deliver_tap+0x13f/0x330 [ 838.777478][T14940] netlink_unicast+0x4a3/0x770 [ 838.777482][T14940] ? netlink_attachskb+0x810/0x810 [ 838.777483][T14940] ? __alloc_skb+0x4c4/0x5f0 [ 838.777486][T14940] ? napi_skb_cache_get+0x7a0/0x7a0 [ 838.777488][T14940] ? lock_acquire.part.0+0xbc/0x260 [ 838.777490][T14940] ? __lock_acquire+0x577/0xc10 [ 838.777493][T14940] netlink_sendmsg+0x735/0xc60 [ 838.777497][T14940] ? netlink_unicast+0x770/0x770 [ 838.777500][T14940] ? __might_fault+0x97/0x140 [ 838.777505][T14940] ____sys_sendmsg+0x419/0x850 [ 838.777507][T14940] ? copy_msghdr_from_user+0x270/0x430 [ 838.777509][T14940] ? get_timestamp.constprop.0+0x390/0x390 [ 838.777511][T14940] ? move_addr_to_kernel+0x40/0x40 [ 838.777514][T14940] ? stack_depot_save_flags+0x30d/0x6e0 [ 838.777518][T14940] ? rcu_read_lock_any_held+0x3c/0x90 [ 838.777524][T14940] ___sys_sendmsg+0xfd/0x180 [ 838.777525][T14940] ? __call_rcu_common.constprop.0+0xa6/0xa00 [ 838.777529][T14940] ? copy_msghdr_from_user+0x430/0x430 [ 838.777543][T14940] __sys_sendmsg+0x124/0x1c0 [ 838.777545][T14940] ? __sys_sendmsg_sock+0x20/0x20 [ 838.777547][T14940] ? lockdep_hardirqs_on+0x84/0x130 [ 838.777551][T14940] ? __call_rcu_common.constprop.0+0x3bd/0xa00 [ 838.777557][T14940] ? do_raw_spin_unlock+0x59/0x250 [ 838.777559][T14940] ? rcu_is_watching+0x15/0xd0 [ 838.777562][T14940] do_syscall_64+0x117/0xfc0 [ 838.777564][T14940] ? exc_page_fault+0xaf/0xd0 [ 838.777567][T14940] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 838.777569][T14940] RIP: 0033:0x7f2fbc84ac5e [ 838.777572][T14940] 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 [ 838.777574][T14940] RSP: 002b:00007fffc9bbd510 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 838.777577][T14940] RAX: ffffffffffffffda RBX: 00007fffc9bbfb20 RCX: 00007f2fbc84ac5e [ 838.777578][T14940] RDX: 0000000000000000 RSI: 00007fffc9bbd5d0 RDI: 0000000000000005 [ 838.777579][T14940] RBP: 00007fffc9bbd520 R08: 0000000000000000 R09: 0000000000000000 [ 838.777579][T14940] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 838.777580][T14940] R13: 0000000069bb9c32 R14: 00007fffc9bbfb30 R15: 000000000049c620 [ 838.777586][T14940] [ 839.308873][T14968] veth2: entered promiscuous mode [ 839.323366][T14968] veth2: left promiscuous mode [ 909.153717][T18903] veth2: entered promiscuous mode [ 909.165680][T18903] veth2: left promiscuous mode [ 910.354737][T18915] veth2: entered promiscuous mode [ 910.366087][T18915] veth2: left promiscuous mode [ 911.602423][T18929] veth2: entered promiscuous mode [ 911.611940][T18929] veth2: left promiscuous mode