[ 10.347842][ T259] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 10.355684][ T259] ip (259) used greatest stack depth: 23824 bytes left [ 10.922247][ T263] bond0: (slave bond_slave_1): Releasing backup interface [ 10.933993][ T263] [ 10.934156][ T263] ============================================ [ 10.934346][ T263] WARNING: possible recursive locking detected [ 10.934550][ T263] 6.13.0-rc5-virtme #1 Not tainted [ 10.934698][ T263] -------------------------------------------- [ 10.934882][ T263] ip/263 is trying to acquire lock: [ 10.935056][ T263] ffffffffb1bf6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 10.935370][ T263] [ 10.935370][ T263] but task is already holding lock: [ 10.935590][ T263] ffffffffb1bf6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 10.935892][ T263] [ 10.935892][ T263] other info that might help us debug this: [ 10.936119][ T263] Possible unsafe locking scenario: [ 10.936119][ T263] [ 10.936347][ T263] CPU0 [ 10.936453][ T263] ---- [ 10.936560][ T263] lock((netdev_chain).rwsem); [ 10.936704][ T263] lock((netdev_chain).rwsem); [ 10.936852][ T263] [ 10.936852][ T263] *** DEADLOCK *** [ 10.936852][ T263] [ 10.937059][ T263] May be due to missing lock nesting notation [ 10.937059][ T263] [ 10.937270][ T263] 2 locks held by ip/263: [ 10.937379][ T263] #0: ffffffffb1c07e88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 10.937635][ T263] #1: ffffffffb1bf6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 10.937917][ T263] [ 10.937917][ T263] stack backtrace: [ 10.938090][ T263] CPU: 2 UID: 0 PID: 263 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 10.938309][ T263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.938488][ T263] Call Trace: [ 10.938596][ T263] [ 10.938670][ T263] dump_stack_lvl+0x82/0xd0 [ 10.938818][ T263] print_deadlock_bug+0x40a/0x650 [ 10.938970][ T263] validate_chain+0x5bf/0xae0 [ 10.939113][ T263] ? __pfx_validate_chain+0x10/0x10 [ 10.939254][ T263] ? hlock_class+0x4e/0x130 [ 10.939395][ T263] ? mark_lock+0x38/0x3e0 [ 10.939506][ T263] __lock_acquire+0xb9a/0x1680 [ 10.939649][ T263] lock_acquire.part.0+0xeb/0x330 [ 10.939792][ T263] ? blocking_notifier_call_chain+0x50/0x90 [ 10.939986][ T263] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 10.940145][ T263] ? trace_lock_acquire+0x14c/0x1f0 [ 10.940294][ T263] ? lock_acquire+0x32/0xc0 [ 10.940442][ T263] ? blocking_notifier_call_chain+0x50/0x90 [ 10.940626][ T263] down_read+0x9f/0x340 [ 10.940741][ T263] ? blocking_notifier_call_chain+0x50/0x90 [ 10.940922][ T263] ? __pfx_down_read+0x10/0x10 [ 10.941073][ T263] blocking_notifier_call_chain+0x50/0x90 [ 10.941236][ T263] netdev_update_features+0xb0/0xc0 [ 10.941380][ T263] ? __pfx_netdev_update_features+0x10/0x10 [ 10.941558][ T263] vlan_device_event+0x1153/0x2130 [ 10.941706][ T263] ? __pfx_vlan_device_event+0x10/0x10 [ 10.941850][ T263] ? __pfx_br_device_event+0x10/0x10 [ 10.941997][ T263] ? packet_notifier+0x3b0/0x810 [ 10.942144][ T263] notifier_call_chain+0xcd/0x150 [ 10.942289][ T263] blocking_notifier_call_chain+0x66/0x90 [ 10.942434][ T263] netdev_change_features+0x7f/0xb0 [ 10.942576][ T263] ? __pfx_netdev_change_features+0x10/0x10 [ 10.942752][ T263] ? __pfx___up_read+0x10/0x10 [ 10.942896][ T263] bond_compute_features+0x545/0x7f0 [bonding] [ 10.943100][ T263] ? blocking_notifier_call_chain+0x71/0x90 [ 10.943278][ T263] ? __pfx_bond_compute_features+0x10/0x10 [bonding] [ 10.943470][ T263] ? call_netdevice_notifiers+0x71/0xa0 [ 10.943613][ T263] ? __pfx_call_netdevice_notifiers+0x10/0x10 [ 10.943786][ T263] __bond_release_one+0x6bf/0x13f0 [bonding] [ 10.943980][ T263] ? __pfx___lock_release+0x10/0x10 [ 10.944125][ T263] ? __pfx___bond_release_one+0x10/0x10 [bonding] [ 10.944325][ T263] ? is_bpf_text_address+0x67/0x120 [ 10.944470][ T263] ? rcu_read_lock_any_held+0x43/0xb0 [ 10.944614][ T263] ? validate_chain+0x1fe/0xae0 [ 10.944756][ T263] ? __kernel_text_address+0x12/0x40 [ 10.944896][ T263] ? unwind_get_return_address+0x5e/0xa0 [ 10.945088][ T263] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 10.945281][ T263] ? __pfx_validate_chain+0x10/0x10 [ 10.945435][ T263] ? __pfx_validate_linkmsg+0x10/0x10 [ 10.945588][ T263] do_set_master+0xb5/0x1c0 [ 10.945741][ T263] do_setlink.constprop.0+0x80e/0x2300 [ 10.945894][ T263] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 10.946083][ T263] ? lock_acquire.part.0+0xeb/0x330 [ 10.946241][ T263] ? rtnl_newlink+0x653/0xa70 [ 10.946385][ T263] ? rtnl_newlink+0xb9/0xa70 [ 10.946526][ T263] ? rtnetlink_rcv_msg+0x712/0xc10 [ 10.946665][ T263] ? __mutex_trylock_common+0xfa/0x260 [ 10.946806][ T263] ? __pfx___mutex_trylock_common+0x10/0x10 [ 10.946980][ T263] ? lock_acquire+0x32/0xc0 [ 10.947122][ T263] ? trace_contention_end+0xef/0x150 [ 10.947265][ T263] ? __mutex_lock+0x190/0xbc0 [ 10.947412][ T263] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 10.947551][ T263] ? rtnl_newlink+0x653/0xa70 [ 10.947695][ T263] ? __pfx___mutex_lock+0x10/0x10 [ 10.947837][ T263] ? __rtnl_newlink+0x3f2/0xa80 [ 10.947978][ T263] rtnl_newlink+0x69c/0xa70 [ 10.948121][ T263] ? __pfx_rtnl_newlink+0x10/0x10 [ 10.948262][ T263] ? find_held_lock+0x2c/0x110 [ 10.948403][ T263] ? __pfx___lock_release+0x10/0x10 [ 10.948548][ T263] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 10.948693][ T263] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 10.948834][ T263] ? __pfx_rtnl_newlink+0x10/0x10 [ 10.948975][ T263] rtnetlink_rcv_msg+0x712/0xc10 [ 10.949115][ T263] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 10.949256][ T263] ? hlock_class+0x4e/0x130 [ 10.949395][ T263] ? mark_lock+0x38/0x3e0 [ 10.949506][ T263] ? __lock_acquire+0xb9a/0x1680 [ 10.949648][ T263] netlink_rcv_skb+0x130/0x360 [ 10.949795][ T263] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 10.949937][ T263] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 10.950084][ T263] ? netlink_deliver_tap+0x13e/0x340 [ 10.950225][ T263] ? netlink_deliver_tap+0xc3/0x340 [ 10.950383][ T263] netlink_unicast+0x44b/0x710 [ 10.950554][ T263] ? __pfx_netlink_unicast+0x10/0x10 [ 10.950706][ T263] ? find_held_lock+0x2c/0x110 [ 10.950857][ T263] netlink_sendmsg+0x723/0xbe0 [ 10.951010][ T263] ? __pfx_netlink_sendmsg+0x10/0x10 [ 10.951166][ T263] ____sys_sendmsg+0x7ac/0xa10 [ 10.951321][ T263] ? __pfx_____sys_sendmsg+0x10/0x10 [ 10.951472][ T263] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 10.951677][ T263] ___sys_sendmsg+0xee/0x170 [ 10.951831][ T263] ? __pfx____sys_sendmsg+0x10/0x10 [ 10.951972][ T263] ? kasan_save_stack+0x34/0x50 [ 10.952125][ T263] ? kasan_save_stack+0x24/0x50 [ 10.952269][ T263] ? __kasan_record_aux_stack+0x8e/0xa0 [ 10.952414][ T263] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 10.952615][ T263] ? __x64_sys_close+0x7c/0xd0 [ 10.952770][ T263] ? do_syscall_64+0xc1/0x1d0 [ 10.952921][ T263] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 10.953106][ T263] ? __lock_acquire+0xb9a/0x1680 [ 10.953258][ T263] ? find_held_lock+0x2c/0x110 [ 10.953409][ T263] ? __lock_release+0x103/0x460 [ 10.953558][ T263] ? __virt_addr_valid+0x22b/0x430 [ 10.953711][ T263] ? __pfx___lock_release+0x10/0x10 [ 10.953867][ T263] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 10.954015][ T263] __sys_sendmsg+0x109/0x1a0 [ 10.954156][ T263] ? __pfx___sys_sendmsg+0x10/0x10 [ 10.954300][ T263] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 10.954488][ T263] do_syscall_64+0xc1/0x1d0 [ 10.954630][ T263] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 10.954806][ T263] RIP: 0033:0x7f0de57789a7 [ 10.954962][ T263] 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 [ 10.955520][ T263] RSP: 002b:00007ffe073f6808 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 10.955751][ T263] RAX: ffffffffffffffda RBX: 00007ffe073f6f30 RCX: 00007f0de57789a7 [ 10.955983][ T263] RDX: 0000000000000000 RSI: 00007ffe073f6870 RDI: 0000000000000005 [ 10.956218][ T263] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 10.956431][ T263] R10: 00007f0de5636ef8 R11: 0000000000000246 R12: 0000000000000002 [ 10.956643][ T263] R13: 00000000677967a6 R14: 0000000000498600 R15: 0000000000000000 [ 10.956857][ T263] [ 10.968128][ T263] ip (263) used greatest stack depth: 23248 bytes left [ 11.227118][ T67] bond0 (unregistering): Released all slaves