[ 77.760257][ T1430] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.311606][ T1434] bond0: (slave bond_slave_1): Releasing backup interface [ 78.330272][ T1434] [ 78.330460][ T1434] ============================================ [ 78.330671][ T1434] WARNING: possible recursive locking detected [ 78.330879][ T1434] 6.13.0-rc5-virtme #1 Not tainted [ 78.331047][ T1434] -------------------------------------------- [ 78.331261][ T1434] ip/1434 is trying to acquire lock: [ 78.331428][ T1434] ffffffff88bf6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 78.331773][ T1434] [ 78.331773][ T1434] but task is already holding lock: [ 78.332021][ T1434] ffffffff88bf6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 78.332357][ T1434] [ 78.332357][ T1434] other info that might help us debug this: [ 78.332606][ T1434] Possible unsafe locking scenario: [ 78.332606][ T1434] [ 78.332852][ T1434] CPU0 [ 78.332979][ T1434] ---- [ 78.333106][ T1434] lock((netdev_chain).rwsem); [ 78.333273][ T1434] lock((netdev_chain).rwsem); [ 78.333441][ T1434] [ 78.333441][ T1434] *** DEADLOCK *** [ 78.333441][ T1434] [ 78.333688][ T1434] May be due to missing lock nesting notation [ 78.333688][ T1434] [ 78.333936][ T1434] 2 locks held by ip/1434: [ 78.334106][ T1434] #0: ffffffff88c07e88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 78.334409][ T1434] #1: ffffffff88bf6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 78.334748][ T1434] [ 78.334748][ T1434] stack backtrace: [ 78.334957][ T1434] CPU: 0 UID: 0 PID: 1434 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 78.335209][ T1434] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 78.335420][ T1434] Call Trace: [ 78.335550][ T1434] [ 78.335637][ T1434] dump_stack_lvl+0x82/0xd0 [ 78.335810][ T1434] print_deadlock_bug+0x40a/0x650 [ 78.335979][ T1434] validate_chain+0x5bf/0xae0 [ 78.336151][ T1434] ? __pfx_validate_chain+0x10/0x10 [ 78.336331][ T1434] ? hlock_class+0x4e/0x130 [ 78.336498][ T1434] ? mark_lock+0x38/0x3e0 [ 78.336628][ T1434] __lock_acquire+0xb9a/0x1680 [ 78.336801][ T1434] lock_acquire.part.0+0xeb/0x330 [ 78.336971][ T1434] ? blocking_notifier_call_chain+0x50/0x90 [ 78.337181][ T1434] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 78.337352][ T1434] ? trace_lock_acquire+0x14c/0x1f0 [ 78.337526][ T1434] ? lock_acquire+0x32/0xc0 [ 78.337696][ T1434] ? blocking_notifier_call_chain+0x50/0x90 [ 78.337906][ T1434] down_read+0x9f/0x340 [ 78.338037][ T1434] ? blocking_notifier_call_chain+0x50/0x90 [ 78.338247][ T1434] ? __pfx_down_read+0x10/0x10 [ 78.338426][ T1434] blocking_notifier_call_chain+0x50/0x90 [ 78.338597][ T1434] netdev_update_features+0xb0/0xc0 [ 78.338770][ T1434] ? __pfx_netdev_update_features+0x10/0x10 [ 78.338980][ T1434] vlan_device_event+0x1153/0x2130 [ 78.339151][ T1434] ? __pfx_vlan_device_event+0x10/0x10 [ 78.339322][ T1434] ? __pfx_br_device_event+0x10/0x10 [ 78.339495][ T1434] ? packet_notifier+0x3b0/0x810 [ 78.339665][ T1434] notifier_call_chain+0xcd/0x150 [ 78.339835][ T1434] blocking_notifier_call_chain+0x66/0x90 [ 78.340008][ T1434] netdev_change_features+0x7f/0xb0 [ 78.340178][ T1434] ? __pfx_netdev_change_features+0x10/0x10 [ 78.340387][ T1434] ? __pfx___up_read+0x10/0x10 [ 78.340560][ T1434] bond_compute_features+0x545/0x7f0 [bonding] [ 78.340798][ T1434] ? blocking_notifier_call_chain+0x71/0x90 [ 78.341012][ T1434] ? __pfx_bond_compute_features+0x10/0x10 [bonding] [ 78.341244][ T1434] ? call_netdevice_notifiers+0x71/0xa0 [ 78.341416][ T1434] ? __pfx_call_netdevice_notifiers+0x10/0x10 [ 78.341631][ T1434] __bond_release_one+0x6bf/0x13f0 [bonding] [ 78.341863][ T1434] ? __pfx___lock_release+0x10/0x10 [ 78.342027][ T1434] ? __pfx___bond_release_one+0x10/0x10 [bonding] [ 78.342258][ T1434] ? is_bpf_text_address+0x67/0x120 [ 78.342435][ T1434] ? rcu_read_lock_any_held+0x43/0xb0 [ 78.342607][ T1434] ? validate_chain+0x1fe/0xae0 [ 78.342778][ T1434] ? __kernel_text_address+0x12/0x40 [ 78.342949][ T1434] ? unwind_get_return_address+0x5e/0xa0 [ 78.343120][ T1434] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 78.343332][ T1434] ? __pfx_validate_chain+0x10/0x10 [ 78.343501][ T1434] ? __pfx_validate_linkmsg+0x10/0x10 [ 78.343676][ T1434] do_set_master+0xb5/0x1c0 [ 78.343860][ T1434] do_setlink.constprop.0+0x80e/0x2300 [ 78.344029][ T1434] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 78.344241][ T1434] ? lock_acquire.part.0+0xeb/0x330 [ 78.344414][ T1434] ? rtnl_newlink+0x653/0xa70 [ 78.344583][ T1434] ? rtnl_newlink+0xb9/0xa70 [ 78.344751][ T1434] ? rtnetlink_rcv_msg+0x712/0xc10 [ 78.344923][ T1434] ? __mutex_trylock_common+0xfa/0x260 [ 78.345093][ T1434] ? __pfx___mutex_trylock_common+0x10/0x10 [ 78.345303][ T1434] ? lock_acquire+0x32/0xc0 [ 78.345473][ T1434] ? trace_contention_end+0xef/0x150 [ 78.345643][ T1434] ? __mutex_lock+0x190/0xbc0 [ 78.345812][ T1434] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 78.345984][ T1434] ? rtnl_newlink+0x653/0xa70 [ 78.346152][ T1434] ? __pfx___mutex_lock+0x10/0x10 [ 78.346330][ T1434] ? __rtnl_newlink+0x3f2/0xa80 [ 78.346499][ T1434] rtnl_newlink+0x69c/0xa70 [ 78.346669][ T1434] ? __pfx_rtnl_newlink+0x10/0x10 [ 78.346839][ T1434] ? find_held_lock+0x2c/0x110 [ 78.347009][ T1434] ? __pfx___lock_release+0x10/0x10 [ 78.347177][ T1434] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 78.347351][ T1434] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 78.347518][ T1434] ? __pfx_rtnl_newlink+0x10/0x10 [ 78.347688][ T1434] rtnetlink_rcv_msg+0x712/0xc10 [ 78.347856][ T1434] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 78.348025][ T1434] ? hlock_class+0x4e/0x130 [ 78.348192][ T1434] ? mark_lock+0x38/0x3e0 [ 78.348320][ T1434] ? __lock_acquire+0xb9a/0x1680 [ 78.348488][ T1434] netlink_rcv_skb+0x130/0x360 [ 78.348659][ T1434] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 78.348828][ T1434] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 78.349002][ T1434] ? netlink_deliver_tap+0x13e/0x340 [ 78.349172][ T1434] ? netlink_deliver_tap+0xc3/0x340 [ 78.349342][ T1434] netlink_unicast+0x44b/0x710 [ 78.349511][ T1434] ? __pfx_netlink_unicast+0x10/0x10 [ 78.349685][ T1434] ? find_held_lock+0x2c/0x110 [ 78.349855][ T1434] netlink_sendmsg+0x723/0xbe0 [ 78.350024][ T1434] ? __pfx_netlink_sendmsg+0x10/0x10 [ 78.350196][ T1434] ____sys_sendmsg+0x7ac/0xa10 [ 78.350367][ T1434] ? __pfx_____sys_sendmsg+0x10/0x10 [ 78.350536][ T1434] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 78.350758][ T1434] ___sys_sendmsg+0xee/0x170 [ 78.350928][ T1434] ? __pfx____sys_sendmsg+0x10/0x10 [ 78.351102][ T1434] ? kasan_save_stack+0x34/0x50 [ 78.351274][ T1434] ? kasan_save_stack+0x24/0x50 [ 78.351442][ T1434] ? __kasan_record_aux_stack+0x8e/0xa0 [ 78.351611][ T1434] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 78.351822][ T1434] ? __x64_sys_close+0x7c/0xd0 [ 78.351992][ T1434] ? do_syscall_64+0xc1/0x1d0 [ 78.352162][ T1434] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.352375][ T1434] ? __lock_acquire+0xb9a/0x1680 [ 78.352549][ T1434] ? find_held_lock+0x2c/0x110 [ 78.352716][ T1434] ? __lock_release+0x103/0x460 [ 78.352883][ T1434] ? __virt_addr_valid+0x22b/0x430 [ 78.353053][ T1434] ? __pfx___lock_release+0x10/0x10 [ 78.353224][ T1434] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 78.353394][ T1434] __sys_sendmsg+0x109/0x1a0 [ 78.353565][ T1434] ? __pfx___sys_sendmsg+0x10/0x10 [ 78.353734][ T1434] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 78.353951][ T1434] do_syscall_64+0xc1/0x1d0 [ 78.354120][ T1434] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.354328][ T1434] RIP: 0033:0x7f635af8c9a7 [ 78.354504][ T1434] 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 [ 78.355103][ T1434] RSP: 002b:00007fff56fd69c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 78.355358][ T1434] RAX: ffffffffffffffda RBX: 00007fff56fd70f0 RCX: 00007f635af8c9a7 [ 78.355611][ T1434] RDX: 0000000000000000 RSI: 00007fff56fd6a30 RDI: 0000000000000005 [ 78.355869][ T1434] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 78.356123][ T1434] R10: 00007f635ae4aef8 R11: 0000000000000246 R12: 0000000000000002 [ 78.356381][ T1434] R13: 0000000067796092 R14: 0000000000498600 R15: 0000000000000000 [ 78.356638][ T1434] [ 78.362157][ T1434] ip (1434) used greatest stack depth: 23264 bytes left [ 78.583586][ T66] bond0 (unregistering): Released all slaves