[ 12.398711][ T276] fab-br0: port 1(fbond) entered blocking state [ 12.399094][ T276] fab-br0: port 1(fbond) entered disabled state [ 12.399638][ T276] fbond: entered allmulticast mode [ 12.401152][ T276] fbond: entered promiscuous mode [ 12.494506][ T279] veth1-bond: entered promiscuous mode [ 12.494943][ T279] veth1-bond: entered allmulticast mode [ 12.495850][ T279] fbond: (slave veth1-bond): Enslaving as a backup interface with a down link [ 12.606888][ T280] veth2-bond: entered promiscuous mode [ 12.607365][ T280] veth2-bond: entered allmulticast mode [ 12.607889][ T280] fbond: (slave veth2-bond): Enslaving as a backup interface with a down link [ 12.706534][ T70] fbond: (slave veth1-bond): link status definitely up, 10000 Mbps full duplex [ 12.707010][ T70] fbond: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 12.707582][ T70] fbond: active interface up! [ 12.846532][ T283] fab-br0: port 1(fbond) entered blocking state [ 12.846914][ T283] fab-br0: port 1(fbond) entered forwarding state [ 12.914435][ T70] fbond: (slave veth2-bond): link status definitely up, 10000 Mbps full duplex [ 15.040654][ T320] fbond: left allmulticast mode [ 15.040909][ T320] veth1-bond: left allmulticast mode [ 15.041099][ T320] veth2-bond: left allmulticast mode [ 15.041303][ T320] fbond: left promiscuous mode [ 15.041507][ T320] veth1-bond: left promiscuous mode [ 15.041921][ T320] veth2-bond: left promiscuous mode [ 15.042421][ T320] fab-br0: port 1(fbond) entered disabled state [ 15.126735][ T320] ip (320) used greatest stack depth: 23784 bytes left [ 15.517690][ T321] [ 15.517949][ T321] ============================= [ 15.518143][ T321] WARNING: suspicious RCU usage [ 15.518315][ T321] 6.14.0-rc6-virtme #1 Not tainted [ 15.518483][ T321] ----------------------------- [ 15.518647][ T321] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 15.518968][ T321] [ 15.518968][ T321] other info that might help us debug this: [ 15.518968][ T321] [ 15.519341][ T321] [ 15.519341][ T321] rcu_scheduler_active = 2, debug_locks = 1 [ 15.519597][ T321] 3 locks held by ip/321: [ 15.519734][ T321] #0: ffffffff8780d048 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x221/0xa30 [ 15.520056][ T321] #1: ffff888002152d58 (&bond->mode_lock){+...}-{3:3}, at: bond_3ad_unbind_slave+0xaa/0x2070 [ 15.520426][ T321] #2: ffffffff86f5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x203/0x1850 [ 15.520732][ T321] [ 15.520732][ T321] stack backtrace: [ 15.520938][ T321] CPU: 1 UID: 0 PID: 321 Comm: ip Not tainted 6.14.0-rc6-virtme #1 [ 15.520942][ T321] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.520945][ T321] Call Trace: [ 15.520947][ T321] [ 15.520949][ T321] dump_stack_lvl+0xb0/0xd0 [ 15.520956][ T321] lockdep_rcu_suspicious+0x1ea/0x280 [ 15.520968][ T321] dev_hard_start_xmit+0x2fc/0x3f0 [ 15.520979][ T321] __dev_queue_xmit+0xef9/0x1850 [ 15.520995][ T321] ? __pfx___dev_queue_xmit+0x10/0x10 [ 15.521001][ T321] ? __alloc_skb+0x148/0x2e0 [ 15.521007][ T321] ? __pfx___alloc_skb+0x10/0x10 [ 15.521010][ T321] ? bond_3ad_unbind_slave+0xaa/0x2070 [ 15.521019][ T321] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.521029][ T321] ? __netdev_alloc_skb+0x43/0x660 [ 15.521037][ T321] ad_lacpdu_send+0x572/0x680 [ 15.521046][ T321] bond_3ad_unbind_slave+0x86e/0x2070 [ 15.521057][ T321] ? __pfx_bond_3ad_unbind_slave+0x10/0x10 [ 15.521060][ T321] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 15.521078][ T321] __bond_release_one+0xfa0/0x1560 [ 15.521089][ T321] ? __lock_acquire+0xb9a/0x1680 [ 15.521094][ T321] ? __pfx___bond_release_one+0x10/0x10 [ 15.521105][ T321] ? find_held_lock+0x2c/0x110 [ 15.521113][ T321] ? __lock_release+0x103/0x460 [ 15.521118][ T321] ? packet_notifier+0x3a6/0x810 [ 15.521126][ T321] ? bond_netpoll_cleanup+0x158/0x290 [ 15.521134][ T321] ? __pfx_bond_netpoll_cleanup+0x10/0x10 [ 15.521148][ T321] bond_uninit+0x10c/0x340 [ 15.521153][ T321] ? __pfx_bond_uninit+0x10/0x10 [ 15.521159][ T321] ? notifier_call_chain+0xcd/0x150 [ 15.521171][ T321] unregister_netdevice_many_notify+0x39d/0x19d0 [ 15.521185][ T321] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 15.521188][ T321] ? rtnl_dellink+0x221/0xa30 [ 15.521190][ T321] ? sock_def_readable+0x11e/0x300 [ 15.521195][ T321] ? __pfx___mutex_lock+0x10/0x10 [ 15.521204][ T321] ? rtnl_is_locked+0x15/0x20 [ 15.521207][ T321] ? unregister_netdevice_queue+0x70/0x410 [ 15.521213][ T321] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 15.521217][ T321] ? __nla_validate_parse+0x48/0x3d0 [ 15.521231][ T321] rtnl_dellink+0x341/0xa30 [ 15.521239][ T321] ? __pfx_rtnl_dellink+0x10/0x10 [ 15.521305][ T321] ? find_held_lock+0x2c/0x110 [ 15.521313][ T321] ? __lock_release+0x103/0x460 [ 15.521315][ T321] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 15.521319][ T321] ? __pfx___lock_release+0x10/0x10 [ 15.521323][ T321] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.521335][ T321] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 15.521340][ T321] ? __pfx_rtnl_dellink+0x10/0x10 [ 15.521344][ T321] rtnetlink_rcv_msg+0x712/0xc10 [ 15.521351][ T321] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.521355][ T321] ? hlock_class+0x4e/0x130 [ 15.521359][ T321] ? mark_lock+0x38/0x3e0 [ 15.521369][ T321] ? __lock_acquire+0xb9a/0x1680 [ 15.521376][ T321] netlink_rcv_skb+0x130/0x360 [ 15.521381][ T321] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.521388][ T321] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 15.521410][ T321] ? netlink_deliver_tap+0x13e/0x340 [ 15.521416][ T321] ? netlink_deliver_tap+0xc3/0x340 [ 15.521424][ T321] netlink_unicast+0x44b/0x710 [ 15.521432][ T321] ? __pfx_netlink_unicast+0x10/0x10 [ 15.521437][ T321] ? find_held_lock+0x2c/0x110 [ 15.521448][ T321] netlink_sendmsg+0x723/0xbe0 [ 15.521458][ T321] ? __pfx_netlink_sendmsg+0x10/0x10 [ 15.521475][ T321] ____sys_sendmsg+0x7ac/0xa10 [ 15.521482][ T321] ? __pfx_____sys_sendmsg+0x10/0x10 [ 15.521485][ T321] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 15.521504][ T321] ___sys_sendmsg+0xee/0x170 [ 15.521512][ T321] ? __pfx____sys_sendmsg+0x10/0x10 [ 15.521520][ T321] ? kasan_save_stack+0x34/0x50 [ 15.521525][ T321] ? kasan_save_stack+0x24/0x50 [ 15.521527][ T321] ? kasan_record_aux_stack+0x8c/0xa0 [ 15.521531][ T321] ? __call_rcu_common.constprop.0+0xa1/0x5b0 [ 15.521534][ T321] ? __x64_sys_close+0x7c/0xd0 [ 15.521537][ T321] ? do_syscall_64+0xc1/0x1d0 [ 15.521541][ T321] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.521546][ T321] ? __lock_acquire+0xb9a/0x1680 [ 15.521550][ T321] ? lock_downgrade+0xb2/0x110 [ 15.521558][ T321] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 15.521564][ T321] ? find_held_lock+0x2c/0x110 [ 15.521571][ T321] ? __lock_release+0x103/0x460 [ 15.521574][ T321] ? __virt_addr_valid+0x22b/0x430 [ 15.521579][ T321] ? __pfx___lock_release+0x10/0x10 [ 15.521582][ T321] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.521592][ T321] __sys_sendmsg+0x109/0x1a0 [ 15.521596][ T321] ? __pfx___sys_sendmsg+0x10/0x10 [ 15.521622][ T321] do_syscall_64+0xc1/0x1d0 [ 15.521628][ T321] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.521631][ T321] RIP: 0033:0x7f16bddfa9a7 [ 15.521636][ T321] 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 [ 15.521639][ T321] RSP: 002b:00007fffaf8c68d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.521643][ T321] RAX: ffffffffffffffda RBX: 00007fffaf8c7000 RCX: 00007f16bddfa9a7 [ 15.521645][ T321] RDX: 0000000000000000 RSI: 00007fffaf8c6940 RDI: 0000000000000005 [ 15.521647][ T321] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 15.521648][ T321] R10: 00007f16bdcb8ef8 R11: 0000000000000246 R12: 0000000000000001 [ 15.521650][ T321] R13: 0000000067da8ea1 R14: 0000000000498600 R15: 0000000000000000 [ 15.521668][ T321] [ 15.539632][ T321] fbond (unregistering): (slave veth1-bond): Removing an active aggregator [ 15.540674][ T321] fbond (unregistering): (slave veth1-bond): Releasing backup interface [ 15.562968][ T321] fbond (unregistering): (slave veth2-bond): Removing an active aggregator [ 15.563732][ T321] fbond (unregistering): (slave veth2-bond): Releasing backup interface [ 15.586513][ T321] fbond (unregistering): Released all slaves [ 15.616023][ T321] ip (321) used greatest stack depth: 22776 bytes left