[ 25.844460][ T342] fab-br0: port 1(fbond) entered blocking state [ 25.844723][ T342] fab-br0: port 1(fbond) entered disabled state [ 25.844967][ T342] fbond: entered allmulticast mode [ 25.846512][ T342] fbond: entered promiscuous mode [ 25.935565][ T345] veth1-bond: entered promiscuous mode [ 25.935989][ T345] veth1-bond: entered allmulticast mode [ 25.937913][ T345] fbond: (slave veth1-bond): Enslaving as a backup interface with a down link [ 26.054149][ T346] veth2-bond: entered promiscuous mode [ 26.054534][ T346] veth2-bond: entered allmulticast mode [ 26.055027][ T346] fbond: (slave veth2-bond): Enslaving as a backup interface with a down link [ 26.213586][ T70] fbond: (slave veth1-bond): link status definitely up, 10000 Mbps full duplex [ 26.214090][ T70] fbond: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 26.215042][ T70] fbond: (slave veth2-bond): link status definitely up, 10000 Mbps full duplex [ 26.215447][ T70] fbond: active interface up! [ 26.281308][ T349] fab-br0: port 1(fbond) entered blocking state [ 26.281749][ T349] fab-br0: port 1(fbond) entered forwarding state [ 26.298911][ T349] ip (349) used greatest stack depth: 24048 bytes left [ 28.691480][ T392] fbond: left allmulticast mode [ 28.691782][ T392] veth1-bond: left allmulticast mode [ 28.691963][ T392] veth2-bond: left allmulticast mode [ 28.692160][ T392] fbond: left promiscuous mode [ 28.692397][ T392] veth1-bond: left promiscuous mode [ 28.692861][ T392] veth2-bond: left promiscuous mode [ 28.693427][ T392] fab-br0: port 1(fbond) entered disabled state [ 29.080633][ T393] [ 29.080904][ T393] ============================= [ 29.081141][ T393] WARNING: suspicious RCU usage [ 29.081361][ T393] 6.14.0-rc6-virtme #1 Not tainted [ 29.081600][ T393] ----------------------------- [ 29.081770][ T393] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 29.082067][ T393] [ 29.082067][ T393] other info that might help us debug this: [ 29.082067][ T393] [ 29.082540][ T393] [ 29.082540][ T393] rcu_scheduler_active = 2, debug_locks = 1 [ 29.082793][ T393] 3 locks held by ip/393: [ 29.082939][ T393] #0: ffffffffafa0d048 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x221/0xa30 [ 29.083311][ T393] #1: ffff88800b9d2d58 (&bond->mode_lock){+...}-{3:3}, at: bond_3ad_unbind_slave+0xaa/0x2070 [ 29.083679][ T393] #2: ffffffffaf15b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x203/0x1850 [ 29.083985][ T393] [ 29.083985][ T393] stack backtrace: [ 29.084216][ T393] CPU: 0 UID: 0 PID: 393 Comm: ip Not tainted 6.14.0-rc6-virtme #1 [ 29.084221][ T393] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.084223][ T393] Call Trace: [ 29.084225][ T393] [ 29.084227][ T393] dump_stack_lvl+0xb0/0xd0 [ 29.084234][ T393] lockdep_rcu_suspicious+0x1ea/0x280 [ 29.084246][ T393] dev_hard_start_xmit+0x2fc/0x3f0 [ 29.084258][ T393] __dev_queue_xmit+0xef9/0x1850 [ 29.084274][ T393] ? __pfx___dev_queue_xmit+0x10/0x10 [ 29.084280][ T393] ? __alloc_skb+0x148/0x2e0 [ 29.084286][ T393] ? __pfx___alloc_skb+0x10/0x10 [ 29.084289][ T393] ? bond_3ad_unbind_slave+0xaa/0x2070 [ 29.084298][ T393] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 29.084307][ T393] ? __netdev_alloc_skb+0x43/0x660 [ 29.084316][ T393] ad_lacpdu_send+0x572/0x680 [ 29.084324][ T393] bond_3ad_unbind_slave+0x86e/0x2070 [ 29.084336][ T393] ? __pfx_bond_3ad_unbind_slave+0x10/0x10 [ 29.084339][ T393] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 29.084357][ T393] __bond_release_one+0xfa0/0x1560 [ 29.084367][ T393] ? __lock_acquire+0xb9a/0x1680 [ 29.084372][ T393] ? __pfx___bond_release_one+0x10/0x10 [ 29.084384][ T393] ? find_held_lock+0x2c/0x110 [ 29.084391][ T393] ? __lock_release+0x103/0x460 [ 29.084394][ T393] ? packet_notifier+0x3a6/0x810 [ 29.084401][ T393] ? bond_netpoll_cleanup+0x158/0x290 [ 29.084409][ T393] ? __pfx_bond_netpoll_cleanup+0x10/0x10 [ 29.084423][ T393] bond_uninit+0x10c/0x340 [ 29.084428][ T393] ? __pfx_bond_uninit+0x10/0x10 [ 29.084434][ T393] ? notifier_call_chain+0xcd/0x150 [ 29.084446][ T393] unregister_netdevice_many_notify+0x39d/0x19d0 [ 29.084461][ T393] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 29.084463][ T393] ? rtnl_dellink+0x221/0xa30 [ 29.084465][ T393] ? sock_def_readable+0x11e/0x300 [ 29.084471][ T393] ? __pfx___mutex_lock+0x10/0x10 [ 29.084481][ T393] ? rtnl_is_locked+0x15/0x20 [ 29.084484][ T393] ? unregister_netdevice_queue+0x70/0x410 [ 29.084490][ T393] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 29.084494][ T393] ? __nla_validate_parse+0x48/0x3d0 [ 29.084508][ T393] rtnl_dellink+0x341/0xa30 [ 29.084516][ T393] ? __pfx_rtnl_dellink+0x10/0x10 [ 29.084582][ T393] ? find_held_lock+0x2c/0x110 [ 29.084589][ T393] ? __lock_release+0x103/0x460 [ 29.084591][ T393] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 29.084595][ T393] ? __pfx___lock_release+0x10/0x10 [ 29.084599][ T393] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 29.084611][ T393] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 29.084616][ T393] ? __pfx_rtnl_dellink+0x10/0x10 [ 29.084620][ T393] rtnetlink_rcv_msg+0x712/0xc10 [ 29.084628][ T393] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 29.084632][ T393] ? hlock_class+0x4e/0x130 [ 29.084635][ T393] ? mark_lock+0x38/0x3e0 [ 29.084645][ T393] ? __lock_acquire+0xb9a/0x1680 [ 29.084653][ T393] netlink_rcv_skb+0x130/0x360 [ 29.084658][ T393] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 29.084665][ T393] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 29.084687][ T393] ? netlink_deliver_tap+0x13e/0x340 [ 29.084693][ T393] ? netlink_deliver_tap+0xc3/0x340 [ 29.084700][ T393] netlink_unicast+0x44b/0x710 [ 29.084709][ T393] ? __pfx_netlink_unicast+0x10/0x10 [ 29.084714][ T393] ? find_held_lock+0x2c/0x110 [ 29.084725][ T393] netlink_sendmsg+0x723/0xbe0 [ 29.084735][ T393] ? __pfx_netlink_sendmsg+0x10/0x10 [ 29.084752][ T393] ____sys_sendmsg+0x7ac/0xa10 [ 29.084758][ T393] ? __pfx_____sys_sendmsg+0x10/0x10 [ 29.084761][ T393] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 29.084781][ T393] ___sys_sendmsg+0xee/0x170 [ 29.084788][ T393] ? __pfx____sys_sendmsg+0x10/0x10 [ 29.084797][ T393] ? kasan_save_stack+0x34/0x50 [ 29.084801][ T393] ? kasan_save_stack+0x24/0x50 [ 29.084803][ T393] ? kasan_record_aux_stack+0x8c/0xa0 [ 29.084807][ T393] ? __call_rcu_common.constprop.0+0xa1/0x5b0 [ 29.084809][ T393] ? __x64_sys_close+0x7c/0xd0 [ 29.084813][ T393] ? do_syscall_64+0xc1/0x1d0 [ 29.084816][ T393] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 29.084821][ T393] ? __lock_acquire+0xb9a/0x1680 [ 29.084826][ T393] ? lock_downgrade+0xb2/0x110 [ 29.084833][ T393] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 29.084840][ T393] ? find_held_lock+0x2c/0x110 [ 29.084847][ T393] ? __lock_release+0x103/0x460 [ 29.084849][ T393] ? __virt_addr_valid+0x22b/0x430 [ 29.084854][ T393] ? __pfx___lock_release+0x10/0x10 [ 29.084857][ T393] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 29.084867][ T393] __sys_sendmsg+0x109/0x1a0 [ 29.084872][ T393] ? __pfx___sys_sendmsg+0x10/0x10 [ 29.084897][ T393] do_syscall_64+0xc1/0x1d0 [ 29.084903][ T393] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 29.084906][ T393] RIP: 0033:0x7f8d839849a7 [ 29.084911][ T393] 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 [ 29.084913][ T393] RSP: 002b:00007fff82c820e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 29.084917][ T393] RAX: ffffffffffffffda RBX: 00007fff82c82810 RCX: 00007f8d839849a7 [ 29.084919][ T393] RDX: 0000000000000000 RSI: 00007fff82c82150 RDI: 0000000000000005 [ 29.084921][ T393] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 29.084922][ T393] R10: 00007f8d83842ef8 R11: 0000000000000246 R12: 0000000000000001 [ 29.084924][ T393] R13: 0000000067da3a99 R14: 0000000000498600 R15: 0000000000000000 [ 29.084942][ T393] [ 29.084954][ T393] fbond (unregistering): (slave veth1-bond): Removing an active aggregator [ 29.104541][ T393] fbond (unregistering): (slave veth1-bond): Releasing backup interface [ 29.120696][ T393] fbond (unregistering): (slave veth2-bond): Removing an active aggregator [ 29.121578][ T393] fbond (unregistering): (slave veth2-bond): Releasing backup interface [ 29.133671][ T393] fbond (unregistering): Released all slaves [ 29.161511][ T393] ip (393) used greatest stack depth: 22744 bytes left