[ 12.246397][ T276] fab-br0: port 1(fbond) entered blocking state [ 12.246946][ T276] fab-br0: port 1(fbond) entered disabled state [ 12.253313][ T276] fbond: entered allmulticast mode [ 12.255203][ T276] fbond: entered promiscuous mode [ 12.368586][ T279] veth1-bond: entered promiscuous mode [ 12.369076][ T279] veth1-bond: entered allmulticast mode [ 12.370432][ T279] fbond: (slave veth1-bond): Enslaving as a backup interface with a down link [ 12.478766][ T280] veth2-bond: entered promiscuous mode [ 12.479164][ T280] veth2-bond: entered allmulticast mode [ 12.479669][ T280] fbond: (slave veth2-bond): Enslaving as a backup interface with a down link [ 12.644282][ T70] fbond: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 12.740880][ T70] fbond: (slave veth1-bond): link status definitely up, 10000 Mbps full duplex [ 12.741706][ T70] fbond: (slave veth2-bond): link status definitely up, 10000 Mbps full duplex [ 12.742079][ T70] fbond: active interface up! [ 12.755862][ T283] fab-br0: port 1(fbond) entered blocking state [ 12.756365][ T283] fab-br0: port 1(fbond) entered forwarding state [ 15.133065][ T321] fbond: left allmulticast mode [ 15.134391][ T321] veth1-bond: left allmulticast mode [ 15.134733][ T321] veth2-bond: left allmulticast mode [ 15.134937][ T321] fbond: left promiscuous mode [ 15.135172][ T321] veth1-bond: left promiscuous mode [ 15.135575][ T321] veth2-bond: left promiscuous mode [ 15.136115][ T321] fab-br0: port 1(fbond) entered disabled state [ 15.231052][ T321] ip (321) used greatest stack depth: 23176 bytes left [ 15.600816][ T322] [ 15.601072][ T322] ============================= [ 15.601266][ T322] WARNING: suspicious RCU usage [ 15.601444][ T322] 6.14.0-rc6-virtme #1 Not tainted [ 15.601616][ T322] ----------------------------- [ 15.601787][ T322] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 15.602081][ T322] [ 15.602081][ T322] other info that might help us debug this: [ 15.602081][ T322] [ 15.602422][ T322] [ 15.602422][ T322] rcu_scheduler_active = 2, debug_locks = 1 [ 15.602676][ T322] 3 locks held by ip/322: [ 15.602830][ T322] #0: ffffffffac00d048 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x221/0xa30 [ 15.603161][ T322] #1: ffff88800b452d58 (&bond->mode_lock){+...}-{3:3}, at: bond_3ad_unbind_slave+0xaa/0x2070 [ 15.603512][ T322] #2: ffffffffab75b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x203/0x1850 [ 15.603820][ T322] [ 15.603820][ T322] stack backtrace: [ 15.604029][ T322] CPU: 1 UID: 0 PID: 322 Comm: ip Not tainted 6.14.0-rc6-virtme #1 [ 15.604033][ T322] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.604035][ T322] Call Trace: [ 15.604037][ T322] [ 15.604039][ T322] dump_stack_lvl+0xb0/0xd0 [ 15.604047][ T322] lockdep_rcu_suspicious+0x1ea/0x280 [ 15.604058][ T322] dev_hard_start_xmit+0x2fc/0x3f0 [ 15.604069][ T322] __dev_queue_xmit+0xef9/0x1850 [ 15.604085][ T322] ? __pfx___dev_queue_xmit+0x10/0x10 [ 15.604092][ T322] ? __alloc_skb+0x148/0x2e0 [ 15.604098][ T322] ? __pfx___alloc_skb+0x10/0x10 [ 15.604101][ T322] ? bond_3ad_unbind_slave+0xaa/0x2070 [ 15.604110][ T322] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.604119][ T322] ? __netdev_alloc_skb+0x43/0x660 [ 15.604130][ T322] ad_lacpdu_send+0x572/0x680 [ 15.604138][ T322] bond_3ad_unbind_slave+0x86e/0x2070 [ 15.604149][ T322] ? __pfx_bond_3ad_unbind_slave+0x10/0x10 [ 15.604153][ T322] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 15.604171][ T322] __bond_release_one+0xfa0/0x1560 [ 15.604181][ T322] ? __lock_acquire+0xb9a/0x1680 [ 15.604186][ T322] ? __pfx___bond_release_one+0x10/0x10 [ 15.604198][ T322] ? find_held_lock+0x2c/0x110 [ 15.604205][ T322] ? __lock_release+0x103/0x460 [ 15.604208][ T322] ? packet_notifier+0x3a6/0x810 [ 15.604215][ T322] ? bond_netpoll_cleanup+0x158/0x290 [ 15.604223][ T322] ? __pfx_bond_netpoll_cleanup+0x10/0x10 [ 15.604237][ T322] bond_uninit+0x10c/0x340 [ 15.604242][ T322] ? __pfx_bond_uninit+0x10/0x10 [ 15.604248][ T322] ? notifier_call_chain+0xcd/0x150 [ 15.604260][ T322] unregister_netdevice_many_notify+0x39d/0x19d0 [ 15.604274][ T322] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 15.604277][ T322] ? rtnl_dellink+0x221/0xa30 [ 15.604279][ T322] ? sock_def_readable+0x11e/0x300 [ 15.604285][ T322] ? __pfx___mutex_lock+0x10/0x10 [ 15.604294][ T322] ? rtnl_is_locked+0x15/0x20 [ 15.604298][ T322] ? unregister_netdevice_queue+0x70/0x410 [ 15.604304][ T322] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 15.604308][ T322] ? __nla_validate_parse+0x48/0x3d0 [ 15.604322][ T322] rtnl_dellink+0x341/0xa30 [ 15.604329][ T322] ? __pfx_rtnl_dellink+0x10/0x10 [ 15.604396][ T322] ? find_held_lock+0x2c/0x110 [ 15.604403][ T322] ? __lock_release+0x103/0x460 [ 15.604405][ T322] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 15.604410][ T322] ? __pfx___lock_release+0x10/0x10 [ 15.604413][ T322] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.604425][ T322] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 15.604430][ T322] ? __pfx_rtnl_dellink+0x10/0x10 [ 15.604434][ T322] rtnetlink_rcv_msg+0x712/0xc10 [ 15.604441][ T322] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.604445][ T322] ? hlock_class+0x4e/0x130 [ 15.604449][ T322] ? mark_lock+0x38/0x3e0 [ 15.604459][ T322] ? __lock_acquire+0xb9a/0x1680 [ 15.604467][ T322] netlink_rcv_skb+0x130/0x360 [ 15.604472][ T322] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.604479][ T322] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 15.604502][ T322] ? netlink_deliver_tap+0x13e/0x340 [ 15.604507][ T322] ? netlink_deliver_tap+0xc3/0x340 [ 15.604515][ T322] netlink_unicast+0x44b/0x710 [ 15.604524][ T322] ? __pfx_netlink_unicast+0x10/0x10 [ 15.604529][ T322] ? find_held_lock+0x2c/0x110 [ 15.604540][ T322] netlink_sendmsg+0x723/0xbe0 [ 15.604549][ T322] ? __pfx_netlink_sendmsg+0x10/0x10 [ 15.604567][ T322] ____sys_sendmsg+0x7ac/0xa10 [ 15.604573][ T322] ? __pfx_____sys_sendmsg+0x10/0x10 [ 15.604576][ T322] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 15.604595][ T322] ___sys_sendmsg+0xee/0x170 [ 15.604603][ T322] ? __pfx____sys_sendmsg+0x10/0x10 [ 15.604611][ T322] ? kasan_save_stack+0x34/0x50 [ 15.604615][ T322] ? kasan_save_stack+0x24/0x50 [ 15.604618][ T322] ? kasan_record_aux_stack+0x8c/0xa0 [ 15.604621][ T322] ? __call_rcu_common.constprop.0+0xa1/0x5b0 [ 15.604624][ T322] ? __x64_sys_close+0x7c/0xd0 [ 15.604627][ T322] ? do_syscall_64+0xc1/0x1d0 [ 15.604631][ T322] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.604636][ T322] ? __lock_acquire+0xb9a/0x1680 [ 15.604640][ T322] ? lock_downgrade+0xb2/0x110 [ 15.604648][ T322] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 15.604655][ T322] ? find_held_lock+0x2c/0x110 [ 15.604662][ T322] ? __lock_release+0x103/0x460 [ 15.604664][ T322] ? __virt_addr_valid+0x22b/0x430 [ 15.604669][ T322] ? __pfx___lock_release+0x10/0x10 [ 15.604672][ T322] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.604682][ T322] __sys_sendmsg+0x109/0x1a0 [ 15.604687][ T322] ? __pfx___sys_sendmsg+0x10/0x10 [ 15.604713][ T322] do_syscall_64+0xc1/0x1d0 [ 15.604718][ T322] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.604721][ T322] RIP: 0033:0x7fa7d9b559a7 [ 15.604726][ T322] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 15.604729][ T322] RSP: 002b:00007fffe7963058 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.604733][ T322] RAX: ffffffffffffffda RBX: 00007fffe7963780 RCX: 00007fa7d9b559a7 [ 15.604735][ T322] RDX: 0000000000000000 RSI: 00007fffe79630c0 RDI: 0000000000000005 [ 15.604737][ T322] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 15.604739][ T322] R10: 00007fa7d9a13ef8 R11: 0000000000000246 R12: 0000000000000001 [ 15.604740][ T322] R13: 0000000067da9226 R14: 0000000000498600 R15: 0000000000000000 [ 15.604758][ T322] [ 15.623822][ T322] fbond (unregistering): (slave veth1-bond): Removing an active aggregator [ 15.624875][ T322] fbond (unregistering): (slave veth1-bond): Releasing backup interface [ 15.643107][ T322] fbond (unregistering): (slave veth2-bond): Removing an active aggregator [ 15.643952][ T322] fbond (unregistering): (slave veth2-bond): Releasing backup interface [ 15.662440][ T322] fbond (unregistering): Released all slaves [ 15.700231][ T322] ip (322) used greatest stack depth: 23032 bytes left