[ 10.758541][ T255] ip (255) used greatest stack depth: 23936 bytes left [ 11.561804][ T277] fab-br0: port 1(fbond) entered blocking state [ 11.562287][ T277] fab-br0: port 1(fbond) entered disabled state [ 11.562679][ T277] fbond: entered allmulticast mode [ 11.564326][ T277] fbond: entered promiscuous mode [ 11.664326][ T280] veth1-bond: entered promiscuous mode [ 11.664723][ T280] veth1-bond: entered allmulticast mode [ 11.666594][ T280] fbond: (slave veth1-bond): Enslaving as a backup interface with a down link [ 11.674800][ T280] ip (280) used greatest stack depth: 23904 bytes left [ 11.769475][ T281] veth2-bond: entered promiscuous mode [ 11.769854][ T281] veth2-bond: entered allmulticast mode [ 11.770354][ T281] fbond: (slave veth2-bond): Enslaving as a backup interface with a down link [ 11.913640][ T70] fbond: (slave veth1-bond): link status definitely up, 10000 Mbps full duplex [ 11.914070][ T70] fbond: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 11.914880][ T70] fbond: active interface up! [ 12.008705][ T284] fab-br0: port 1(fbond) entered blocking state [ 12.009250][ T284] fab-br0: port 1(fbond) entered forwarding state [ 12.121393][ T70] fbond: (slave veth2-bond): link status definitely up, 10000 Mbps full duplex [ 14.495177][ T327] fbond: left allmulticast mode [ 14.495441][ T327] veth1-bond: left allmulticast mode [ 14.495638][ T327] veth2-bond: left allmulticast mode [ 14.495834][ T327] fbond: left promiscuous mode [ 14.496029][ T327] veth1-bond: left promiscuous mode [ 14.496433][ T327] veth2-bond: left promiscuous mode [ 14.496913][ T327] fab-br0: port 1(fbond) entered disabled state [ 14.939518][ T328] [ 14.939779][ T328] ============================= [ 14.939958][ T328] WARNING: suspicious RCU usage [ 14.940158][ T328] 6.14.0-rc6-virtme #1 Not tainted [ 14.940442][ T328] ----------------------------- [ 14.940613][ T328] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 14.940896][ T328] [ 14.940896][ T328] other info that might help us debug this: [ 14.940896][ T328] [ 14.941229][ T328] [ 14.941229][ T328] rcu_scheduler_active = 2, debug_locks = 1 [ 14.941475][ T328] 3 locks held by ip/328: [ 14.941606][ T328] #0: ffffffffa5e0d048 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x221/0xa30 [ 14.941918][ T328] #1: ffff888004e92d58 (&bond->mode_lock){+...}-{3:3}, at: bond_3ad_unbind_slave+0xaa/0x2070 [ 14.942272][ T328] #2: ffffffffa555b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x203/0x1850 [ 14.942576][ T328] [ 14.942576][ T328] stack backtrace: [ 14.942783][ T328] CPU: 1 UID: 0 PID: 328 Comm: ip Not tainted 6.14.0-rc6-virtme #1 [ 14.942787][ T328] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.942790][ T328] Call Trace: [ 14.942792][ T328] [ 14.942794][ T328] dump_stack_lvl+0xb0/0xd0 [ 14.942801][ T328] lockdep_rcu_suspicious+0x1ea/0x280 [ 14.942812][ T328] dev_hard_start_xmit+0x2fc/0x3f0 [ 14.942824][ T328] __dev_queue_xmit+0xef9/0x1850 [ 14.942840][ T328] ? __pfx___dev_queue_xmit+0x10/0x10 [ 14.942846][ T328] ? __alloc_skb+0x148/0x2e0 [ 14.942852][ T328] ? __pfx___alloc_skb+0x10/0x10 [ 14.942855][ T328] ? bond_3ad_unbind_slave+0xaa/0x2070 [ 14.942864][ T328] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 14.942874][ T328] ? __netdev_alloc_skb+0x43/0x660 [ 14.942883][ T328] ad_lacpdu_send+0x572/0x680 [ 14.942890][ T328] bond_3ad_unbind_slave+0x86e/0x2070 [ 14.942902][ T328] ? __pfx_bond_3ad_unbind_slave+0x10/0x10 [ 14.942905][ T328] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 14.942923][ T328] __bond_release_one+0xfa0/0x1560 [ 14.942933][ T328] ? __lock_acquire+0xb9a/0x1680 [ 14.942938][ T328] ? __pfx___bond_release_one+0x10/0x10 [ 14.942950][ T328] ? find_held_lock+0x2c/0x110 [ 14.942957][ T328] ? __lock_release+0x103/0x460 [ 14.942959][ T328] ? packet_notifier+0x3a6/0x810 [ 14.942967][ T328] ? bond_netpoll_cleanup+0x158/0x290 [ 14.942975][ T328] ? __pfx_bond_netpoll_cleanup+0x10/0x10 [ 14.942988][ T328] bond_uninit+0x10c/0x340 [ 14.942994][ T328] ? __pfx_bond_uninit+0x10/0x10 [ 14.943000][ T328] ? notifier_call_chain+0xcd/0x150 [ 14.943011][ T328] unregister_netdevice_many_notify+0x39d/0x19d0 [ 14.943026][ T328] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 14.943028][ T328] ? rtnl_dellink+0x221/0xa30 [ 14.943030][ T328] ? sock_def_readable+0x11e/0x300 [ 14.943036][ T328] ? __pfx___mutex_lock+0x10/0x10 [ 14.943045][ T328] ? rtnl_is_locked+0x15/0x20 [ 14.943049][ T328] ? unregister_netdevice_queue+0x70/0x410 [ 14.943055][ T328] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 14.943059][ T328] ? __nla_validate_parse+0x48/0x3d0 [ 14.943072][ T328] rtnl_dellink+0x341/0xa30 [ 14.943080][ T328] ? __pfx_rtnl_dellink+0x10/0x10 [ 14.943149][ T328] ? find_held_lock+0x2c/0x110 [ 14.943156][ T328] ? __lock_release+0x103/0x460 [ 14.943159][ T328] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 14.943163][ T328] ? __pfx___lock_release+0x10/0x10 [ 14.943166][ T328] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 14.943178][ T328] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 14.943183][ T328] ? __pfx_rtnl_dellink+0x10/0x10 [ 14.943188][ T328] rtnetlink_rcv_msg+0x712/0xc10 [ 14.943195][ T328] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 14.943199][ T328] ? hlock_class+0x4e/0x130 [ 14.943203][ T328] ? mark_lock+0x38/0x3e0 [ 14.943213][ T328] ? __lock_acquire+0xb9a/0x1680 [ 14.943220][ T328] netlink_rcv_skb+0x130/0x360 [ 14.943225][ T328] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 14.943232][ T328] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 14.943254][ T328] ? netlink_deliver_tap+0x13e/0x340 [ 14.943260][ T328] ? netlink_deliver_tap+0xc3/0x340 [ 14.943268][ T328] netlink_unicast+0x44b/0x710 [ 14.943277][ T328] ? __pfx_netlink_unicast+0x10/0x10 [ 14.943282][ T328] ? find_held_lock+0x2c/0x110 [ 14.943293][ T328] netlink_sendmsg+0x723/0xbe0 [ 14.943302][ T328] ? __pfx_netlink_sendmsg+0x10/0x10 [ 14.943319][ T328] ____sys_sendmsg+0x7ac/0xa10 [ 14.943326][ T328] ? __pfx_____sys_sendmsg+0x10/0x10 [ 14.943329][ T328] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 14.943348][ T328] ___sys_sendmsg+0xee/0x170 [ 14.943355][ T328] ? __pfx____sys_sendmsg+0x10/0x10 [ 14.943364][ T328] ? kasan_save_stack+0x34/0x50 [ 14.943368][ T328] ? kasan_save_stack+0x24/0x50 [ 14.943371][ T328] ? kasan_record_aux_stack+0x8c/0xa0 [ 14.943374][ T328] ? __call_rcu_common.constprop.0+0xa1/0x5b0 [ 14.943377][ T328] ? __x64_sys_close+0x7c/0xd0 [ 14.943380][ T328] ? do_syscall_64+0xc1/0x1d0 [ 14.943384][ T328] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 14.943388][ T328] ? __lock_acquire+0xb9a/0x1680 [ 14.943393][ T328] ? lock_downgrade+0xb2/0x110 [ 14.943400][ T328] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 14.943407][ T328] ? find_held_lock+0x2c/0x110 [ 14.943414][ T328] ? __lock_release+0x103/0x460 [ 14.943416][ T328] ? __virt_addr_valid+0x22b/0x430 [ 14.943422][ T328] ? __pfx___lock_release+0x10/0x10 [ 14.943425][ T328] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 14.943435][ T328] __sys_sendmsg+0x109/0x1a0 [ 14.943439][ T328] ? __pfx___sys_sendmsg+0x10/0x10 [ 14.943465][ T328] do_syscall_64+0xc1/0x1d0 [ 14.943470][ T328] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 14.943473][ T328] RIP: 0033:0x7f5e09be89a7 [ 14.943478][ T328] 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 [ 14.943481][ T328] RSP: 002b:00007ffc00fe2b48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 14.943484][ T328] RAX: ffffffffffffffda RBX: 00007ffc00fe3270 RCX: 00007f5e09be89a7 [ 14.943487][ T328] RDX: 0000000000000000 RSI: 00007ffc00fe2bb0 RDI: 0000000000000005 [ 14.943488][ T328] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 14.943490][ T328] R10: 00007f5e09aa6ef8 R11: 0000000000000246 R12: 0000000000000001 [ 14.943492][ T328] R13: 0000000067dabc96 R14: 0000000000498600 R15: 0000000000000000 [ 14.943510][ T328] [ 14.960931][ T328] fbond (unregistering): (slave veth1-bond): Removing an active aggregator [ 14.961728][ T328] fbond (unregistering): (slave veth1-bond): Releasing backup interface [ 14.979771][ T328] fbond (unregistering): (slave veth2-bond): Removing an active aggregator [ 14.980496][ T328] fbond (unregistering): (slave veth2-bond): Releasing backup interface [ 15.003446][ T328] fbond (unregistering): Released all slaves [ 15.042476][ T328] ip (328) used greatest stack depth: 22536 bytes left