[ 12.098494][ T267] ip (267) used greatest stack depth: 23536 bytes left [ 12.387874][ T277] fab-br0: port 1(fbond) entered blocking state [ 12.389051][ T277] fab-br0: port 1(fbond) entered disabled state [ 12.390024][ T277] fbond: entered allmulticast mode [ 12.398845][ T277] fbond: entered promiscuous mode [ 12.484100][ T280] veth1-bond: entered promiscuous mode [ 12.484860][ T280] veth1-bond: entered allmulticast mode [ 12.485947][ T280] fbond: (slave veth1-bond): Enslaving as a backup interface with a down link [ 12.602003][ T281] veth2-bond: entered promiscuous mode [ 12.602493][ T281] veth2-bond: entered allmulticast mode [ 12.603070][ T281] fbond: (slave veth2-bond): Enslaving as a backup interface with a down link [ 12.697754][ T12] fbond: (slave veth1-bond): link status definitely up, 10000 Mbps full duplex [ 12.698279][ T12] fbond: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 12.698899][ T12] fbond: active interface up! [ 12.845258][ T285] fab-br0: port 1(fbond) entered blocking state [ 12.845700][ T285] fab-br0: port 1(fbond) entered forwarding state [ 12.905573][ T12] fbond: (slave veth2-bond): link status definitely up, 10000 Mbps full duplex [ 15.124940][ T322] fbond: left allmulticast mode [ 15.125604][ T322] veth1-bond: left allmulticast mode [ 15.125799][ T322] veth2-bond: left allmulticast mode [ 15.125979][ T322] fbond: left promiscuous mode [ 15.126150][ T322] veth1-bond: left promiscuous mode [ 15.126531][ T322] veth2-bond: left promiscuous mode [ 15.126996][ T322] fab-br0: port 1(fbond) entered disabled state [ 15.585842][ T323] [ 15.586091][ T323] ============================= [ 15.586284][ T323] WARNING: suspicious RCU usage [ 15.586459][ T323] 6.14.0-rc6-virtme #1 Not tainted [ 15.586643][ T323] ----------------------------- [ 15.586815][ T323] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 15.587114][ T323] [ 15.587114][ T323] other info that might help us debug this: [ 15.587114][ T323] [ 15.587481][ T323] [ 15.587481][ T323] rcu_scheduler_active = 2, debug_locks = 1 [ 15.587737][ T323] 3 locks held by ip/323: [ 15.587876][ T323] #0: ffffffffa080d048 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x221/0xa30 [ 15.588216][ T323] #1: ffff88800a1cad58 (&bond->mode_lock){+...}-{3:3}, at: bond_3ad_unbind_slave+0xaa/0x2070 [ 15.588570][ T323] #2: ffffffff9ff5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x203/0x1850 [ 15.588889][ T323] [ 15.588889][ T323] stack backtrace: [ 15.589105][ T323] CPU: 3 UID: 0 PID: 323 Comm: ip Not tainted 6.14.0-rc6-virtme #1 [ 15.589109][ T323] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.589111][ T323] Call Trace: [ 15.589113][ T323] [ 15.589116][ T323] dump_stack_lvl+0xb0/0xd0 [ 15.589125][ T323] lockdep_rcu_suspicious+0x1ea/0x280 [ 15.589139][ T323] dev_hard_start_xmit+0x2fc/0x3f0 [ 15.589150][ T323] __dev_queue_xmit+0xef9/0x1850 [ 15.589169][ T323] ? __pfx___dev_queue_xmit+0x10/0x10 [ 15.589175][ T323] ? __alloc_skb+0x148/0x2e0 [ 15.589183][ T323] ? __pfx___alloc_skb+0x10/0x10 [ 15.589186][ T323] ? bond_3ad_unbind_slave+0xaa/0x2070 [ 15.589195][ T323] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.589204][ T323] ? __netdev_alloc_skb+0x43/0x660 [ 15.589213][ T323] ad_lacpdu_send+0x572/0x680 [ 15.589222][ T323] bond_3ad_unbind_slave+0x86e/0x2070 [ 15.589234][ T323] ? __pfx_bond_3ad_unbind_slave+0x10/0x10 [ 15.589237][ T323] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 15.589258][ T323] __bond_release_one+0xfa0/0x1560 [ 15.589268][ T323] ? __lock_acquire+0xb9a/0x1680 [ 15.589273][ T323] ? __pfx___bond_release_one+0x10/0x10 [ 15.589285][ T323] ? find_held_lock+0x2c/0x110 [ 15.589293][ T323] ? __lock_release+0x103/0x460 [ 15.589295][ T323] ? packet_notifier+0x3a6/0x810 [ 15.589305][ T323] ? bond_netpoll_cleanup+0x158/0x290 [ 15.589312][ T323] ? __pfx_bond_netpoll_cleanup+0x10/0x10 [ 15.589326][ T323] bond_uninit+0x10c/0x340 [ 15.589332][ T323] ? __pfx_bond_uninit+0x10/0x10 [ 15.589338][ T323] ? notifier_call_chain+0xcd/0x150 [ 15.589351][ T323] unregister_netdevice_many_notify+0x39d/0x19d0 [ 15.589366][ T323] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 15.589369][ T323] ? rtnl_dellink+0x221/0xa30 [ 15.589371][ T323] ? sock_def_readable+0x11e/0x300 [ 15.589377][ T323] ? __pfx___mutex_lock+0x10/0x10 [ 15.589386][ T323] ? rtnl_is_locked+0x15/0x20 [ 15.589391][ T323] ? unregister_netdevice_queue+0x70/0x410 [ 15.589397][ T323] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 15.589401][ T323] ? __nla_validate_parse+0x48/0x3d0 [ 15.589417][ T323] rtnl_dellink+0x341/0xa30 [ 15.589425][ T323] ? __pfx_rtnl_dellink+0x10/0x10 [ 15.589491][ T323] ? find_held_lock+0x2c/0x110 [ 15.589499][ T323] ? __lock_release+0x103/0x460 [ 15.589501][ T323] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 15.589506][ T323] ? __pfx___lock_release+0x10/0x10 [ 15.589509][ T323] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.589522][ T323] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 15.589526][ T323] ? __pfx_rtnl_dellink+0x10/0x10 [ 15.589531][ T323] rtnetlink_rcv_msg+0x712/0xc10 [ 15.589538][ T323] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.589542][ T323] ? hlock_class+0x4e/0x130 [ 15.589546][ T323] ? mark_lock+0x38/0x3e0 [ 15.589556][ T323] ? __lock_acquire+0xb9a/0x1680 [ 15.589564][ T323] netlink_rcv_skb+0x130/0x360 [ 15.589571][ T323] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.589578][ T323] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 15.589601][ T323] ? netlink_deliver_tap+0x13e/0x340 [ 15.589607][ T323] ? netlink_deliver_tap+0xc3/0x340 [ 15.589614][ T323] netlink_unicast+0x44b/0x710 [ 15.589623][ T323] ? __pfx_netlink_unicast+0x10/0x10 [ 15.589628][ T323] ? find_held_lock+0x2c/0x110 [ 15.589639][ T323] netlink_sendmsg+0x723/0xbe0 [ 15.589649][ T323] ? __pfx_netlink_sendmsg+0x10/0x10 [ 15.589666][ T323] ____sys_sendmsg+0x7ac/0xa10 [ 15.589675][ T323] ? __pfx_____sys_sendmsg+0x10/0x10 [ 15.589678][ T323] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 15.589697][ T323] ___sys_sendmsg+0xee/0x170 [ 15.589705][ T323] ? __pfx____sys_sendmsg+0x10/0x10 [ 15.589714][ T323] ? kasan_save_stack+0x34/0x50 [ 15.589720][ T323] ? kasan_save_stack+0x24/0x50 [ 15.589722][ T323] ? kasan_record_aux_stack+0x8c/0xa0 [ 15.589726][ T323] ? __call_rcu_common.constprop.0+0xa1/0x5b0 [ 15.589730][ T323] ? __x64_sys_close+0x7c/0xd0 [ 15.589734][ T323] ? do_syscall_64+0xc1/0x1d0 [ 15.589739][ T323] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.589744][ T323] ? __lock_acquire+0xb9a/0x1680 [ 15.589748][ T323] ? lock_downgrade+0xb2/0x110 [ 15.589756][ T323] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 15.589763][ T323] ? find_held_lock+0x2c/0x110 [ 15.589771][ T323] ? __lock_release+0x103/0x460 [ 15.589773][ T323] ? __virt_addr_valid+0x22b/0x430 [ 15.589779][ T323] ? __pfx___lock_release+0x10/0x10 [ 15.589782][ T323] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.589792][ T323] __sys_sendmsg+0x109/0x1a0 [ 15.589797][ T323] ? __pfx___sys_sendmsg+0x10/0x10 [ 15.589822][ T323] do_syscall_64+0xc1/0x1d0 [ 15.589828][ T323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.589831][ T323] RIP: 0033:0x7ff07c5159a7 [ 15.589837][ T323] 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 [ 15.589841][ T323] RSP: 002b:00007ffcd3d91098 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.589844][ T323] RAX: ffffffffffffffda RBX: 00007ffcd3d917c0 RCX: 00007ff07c5159a7 [ 15.589846][ T323] RDX: 0000000000000000 RSI: 00007ffcd3d91100 RDI: 0000000000000005 [ 15.589848][ T323] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 15.589850][ T323] R10: 00007ff07c3d3ef8 R11: 0000000000000246 R12: 0000000000000001 [ 15.589852][ T323] R13: 0000000067da63f9 R14: 0000000000498600 R15: 0000000000000000 [ 15.589870][ T323] [ 15.607945][ T323] fbond (unregistering): (slave veth1-bond): Removing an active aggregator [ 15.608840][ T323] fbond (unregistering): (slave veth1-bond): Releasing backup interface [ 15.618050][ T323] fbond (unregistering): (slave veth2-bond): Removing an active aggregator [ 15.618816][ T323] fbond (unregistering): (slave veth2-bond): Releasing backup interface [ 15.637571][ T323] fbond (unregistering): Released all slaves [ 15.670033][ T323] ip (323) used greatest stack depth: 22776 bytes left