[ 11.520950][ T258] test-bond1: (slave test-bond0): Enslaving as an active interface with an up link [ 11.752287][ T266] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 11.753390][ T266] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 11.924765][ T268] [ 11.924908][ T268] ============================================ [ 11.925149][ T268] WARNING: possible recursive locking detected [ 11.925383][ T268] 6.13.0-rc5-virtme #1 Not tainted [ 11.925566][ T268] -------------------------------------------- [ 11.925782][ T268] ip/268 is trying to acquire lock: [ 11.925954][ T268] ffffffffa91f0a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 11.926305][ T268] [ 11.926305][ T268] but task is already holding lock: [ 11.926542][ T268] ffffffffa91f0a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 11.926866][ T268] [ 11.926866][ T268] other info that might help us debug this: [ 11.927109][ T268] Possible unsafe locking scenario: [ 11.927109][ T268] [ 11.927349][ T268] CPU0 [ 11.927469][ T268] ---- [ 11.927589][ T268] lock((netdev_chain).rwsem); [ 11.927755][ T268] lock((netdev_chain).rwsem); [ 11.927917][ T268] [ 11.927917][ T268] *** DEADLOCK *** [ 11.927917][ T268] [ 11.928169][ T268] May be due to missing lock nesting notation [ 11.928169][ T268] [ 11.928451][ T268] 2 locks held by ip/268: [ 11.928584][ T268] #0: ffffffffa9201dc8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 11.928884][ T268] #1: ffffffffa91f0a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 11.929221][ T268] [ 11.929221][ T268] stack backtrace: [ 11.929427][ T268] CPU: 0 UID: 0 PID: 268 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 11.929676][ T268] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.929885][ T268] Call Trace: [ 11.930019][ T268] [ 11.930107][ T268] dump_stack_lvl+0x82/0xd0 [ 11.930274][ T268] print_deadlock_bug+0x40a/0x650 [ 11.930443][ T268] validate_chain+0x5bf/0xae0 [ 11.930613][ T268] ? __pfx_validate_chain+0x10/0x10 [ 11.930782][ T268] ? hlock_class+0x4e/0x130 [ 11.930947][ T268] ? mark_lock+0x38/0x3e0 [ 11.931076][ T268] __lock_acquire+0xb9a/0x1680 [ 11.931238][ T268] ? __free_zapped_classes+0x161/0x1e0 [ 11.931405][ T268] lock_acquire.part.0+0xeb/0x330 [ 11.931574][ T268] ? blocking_notifier_call_chain+0x50/0x90 [ 11.931779][ T268] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.931949][ T268] ? trace_lock_acquire+0x14c/0x1f0 [ 11.932115][ T268] ? lock_acquire+0x32/0xc0 [ 11.932277][ T268] ? blocking_notifier_call_chain+0x50/0x90 [ 11.932484][ T268] down_read+0x9f/0x340 [ 11.932613][ T268] ? blocking_notifier_call_chain+0x50/0x90 [ 11.932814][ T268] ? __pfx_down_read+0x10/0x10 [ 11.932985][ T268] blocking_notifier_call_chain+0x50/0x90 [ 11.933152][ T268] netdev_change_features+0x7f/0xb0 [ 11.933322][ T268] ? __pfx_netdev_change_features+0x10/0x10 [ 11.933527][ T268] ? ethnl_default_notify+0x470/0x6b0 [ 11.933695][ T268] bond_compute_features+0x4da/0x780 [ 11.933861][ T268] ? ethtool_rx_flow_rule_create+0x17ce/0x2250 [ 11.934077][ T268] ? __pfx_bond_compute_features+0x10/0x10 [ 11.934300][ T268] bond_slave_netdev_event+0x32d/0x870 [ 11.934468][ T268] ? ipmr_device_event+0x3d/0x1b0 [ 11.934639][ T268] notifier_call_chain+0xcd/0x150 [ 11.934806][ T268] blocking_notifier_call_chain+0x66/0x90 [ 11.934972][ T268] netdev_change_features+0x7f/0xb0 [ 11.935139][ T268] ? __pfx_netdev_change_features+0x10/0x10 [ 11.935363][ T268] ? sysfs_create_file_ns+0x120/0x1a0 [ 11.935533][ T268] bond_compute_features+0x4da/0x780 [ 11.935723][ T268] ? __pfx_netdev_lower_state_changed+0x10/0x10 [ 11.935930][ T268] ? __pfx_bond_compute_features+0x10/0x10 [ 11.936139][ T268] ? sysfs_create_files+0x62/0x180 [ 11.936305][ T268] bond_enslave+0x2a1a/0x51b0 [ 11.936473][ T268] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.936647][ T268] ? __pfx_bond_enslave+0x10/0x10 [ 11.936814][ T268] ? is_bpf_text_address+0x67/0x120 [ 11.936982][ T268] ? validate_chain+0x1fe/0xae0 [ 11.937149][ T268] ? __kernel_text_address+0x12/0x40 [ 11.937319][ T268] ? unwind_get_return_address+0x5e/0xa0 [ 11.937482][ T268] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 11.937688][ T268] ? __pfx_validate_chain+0x10/0x10 [ 11.937859][ T268] ? __pfx_validate_linkmsg+0x10/0x10 [ 11.938042][ T268] ? mutex_is_locked+0x1c/0x60 [ 11.938219][ T268] ? rtnl_is_locked+0x15/0x20 [ 11.938387][ T268] ? netdev_master_upper_dev_get+0x13/0x120 [ 11.938602][ T268] do_setlink.constprop.0+0x80e/0x2300 [ 11.938783][ T268] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 11.938995][ T268] ? lock_acquire.part.0+0xeb/0x330 [ 11.939160][ T268] ? rtnl_newlink+0x653/0xa70 [ 11.939328][ T268] ? rtnl_newlink+0xb9/0xa70 [ 11.939500][ T268] ? rtnetlink_rcv_msg+0x712/0xc10 [ 11.939664][ T268] ? __mutex_trylock_common+0xfa/0x260 [ 11.939826][ T268] ? __pfx___mutex_trylock_common+0x10/0x10 [ 11.940036][ T268] ? lock_acquire+0x32/0xc0 [ 11.940210][ T268] ? trace_contention_end+0xef/0x150 [ 11.940375][ T268] ? __mutex_lock+0x190/0xbc0 [ 11.940540][ T268] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 11.940711][ T268] ? rtnl_newlink+0x653/0xa70 [ 11.940874][ T268] ? __pfx___mutex_lock+0x10/0x10 [ 11.941038][ T268] ? __rtnl_newlink+0x3f2/0xa80 [ 11.941204][ T268] rtnl_newlink+0x69c/0xa70 [ 11.941371][ T268] ? __pfx_rtnl_newlink+0x10/0x10 [ 11.941534][ T268] ? find_held_lock+0x2c/0x110 [ 11.941697][ T268] ? __pfx___lock_release+0x10/0x10 [ 11.941861][ T268] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.942036][ T268] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 11.942203][ T268] ? __pfx_rtnl_newlink+0x10/0x10 [ 11.942366][ T268] rtnetlink_rcv_msg+0x712/0xc10 [ 11.942531][ T268] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 11.942695][ T268] ? hlock_class+0x4e/0x130 [ 11.942856][ T268] ? mark_lock+0x38/0x3e0 [ 11.942983][ T268] ? __lock_acquire+0xb9a/0x1680 [ 11.943152][ T268] netlink_rcv_skb+0x130/0x360 [ 11.943321][ T268] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 11.943489][ T268] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 11.943657][ T268] ? netlink_deliver_tap+0x13e/0x340 [ 11.943823][ T268] ? netlink_deliver_tap+0xc3/0x340 [ 11.943990][ T268] netlink_unicast+0x44b/0x710 [ 11.944156][ T268] ? __pfx_netlink_unicast+0x10/0x10 [ 11.944325][ T268] ? find_held_lock+0x2c/0x110 [ 11.944490][ T268] netlink_sendmsg+0x723/0xbe0 [ 11.944655][ T268] ? __pfx_netlink_sendmsg+0x10/0x10 [ 11.944823][ T268] ____sys_sendmsg+0x7ac/0xa10 [ 11.944986][ T268] ? __pfx_____sys_sendmsg+0x10/0x10 [ 11.945150][ T268] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 11.945369][ T268] ___sys_sendmsg+0xee/0x170 [ 11.945535][ T268] ? __pfx____sys_sendmsg+0x10/0x10 [ 11.945699][ T268] ? kasan_save_stack+0x34/0x50 [ 11.945877][ T268] ? kasan_save_stack+0x24/0x50 [ 11.946063][ T268] ? __kasan_record_aux_stack+0x8e/0xa0 [ 11.946243][ T268] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 11.946448][ T268] ? __x64_sys_close+0x7c/0xd0 [ 11.946612][ T268] ? do_syscall_64+0xc1/0x1d0 [ 11.946775][ T268] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 11.946978][ T268] ? __lock_acquire+0xb9a/0x1680 [ 11.947146][ T268] ? find_held_lock+0x2c/0x110 [ 11.947323][ T268] ? __lock_release+0x103/0x460 [ 11.947487][ T268] ? __virt_addr_valid+0x22b/0x430 [ 11.947653][ T268] ? __pfx___lock_release+0x10/0x10 [ 11.947815][ T268] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.947980][ T268] __sys_sendmsg+0x109/0x1a0 [ 11.948142][ T268] ? __pfx___sys_sendmsg+0x10/0x10 [ 11.948301][ T268] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 11.948518][ T268] do_syscall_64+0xc1/0x1d0 [ 11.948683][ T268] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 11.948885][ T268] RIP: 0033:0x7efed19ce9a7 [ 11.949055][ T268] 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 [ 11.949635][ T268] RSP: 002b:00007fff0a1999b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 11.949883][ T268] RAX: ffffffffffffffda RBX: 00007fff0a19a0e0 RCX: 00007efed19ce9a7 [ 11.950132][ T268] RDX: 0000000000000000 RSI: 00007fff0a199a20 RDI: 0000000000000005 [ 11.950388][ T268] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 11.950644][ T268] R10: 00000000337de910 R11: 0000000000000246 R12: 0000000000000004 [ 11.950888][ T268] R13: 000000006778ffb9 R14: 0000000000498600 R15: 0000000000000000 [ 11.951141][ T268] [ 11.951980][ T268] test-bond0: (slave test-bond2): Enslaving as an active interface with an up link [ 11.958426][ T268] ip (268) used greatest stack depth: 22952 bytes left [ 12.370031][ T273] test-bond1: (slave test-bond0): Releasing backup interface [ 12.395691][ T273] test-bond0 (unregistering): (slave test-bond2): Releasing backup interface [ 12.419673][ T273] test-bond0 (unregistering): Released all slaves [ 12.496476][ T274] test-bond1 (unregistering): Released all slaves [ 12.748388][ T275] test-bond2 (unregistering): Released all slaves [ 13.450702][ T297] test-bond1: (slave test-bond0): Enslaving as an active interface with an up link [ 13.535914][ T299] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 13.536350][ T299] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode [ 13.538779][ T299] test-bond0: (slave test-noneth0): making interface the new active one [ 13.539685][ T299] test-bond0: (slave test-noneth0): Enslaving as an active interface with an up link [ 13.648488][ T300] test-bond0: (slave test-noneth0): Releasing backup interface [ 13.738212][ T301] test-bond0: (slave test-bond2): making interface the new active one [ 13.739855][ T301] test-bond0: (slave test-bond2): Enslaving as an active interface with an up link [ 14.106844][ T306] test-bond1: (slave test-bond0): Releasing backup interface [ 14.113729][ T306] test-bond0 (unregistering): (slave test-bond2): Releasing backup interface [ 14.131016][ T306] test-bond0 (unregistering): Released all slaves [ 14.225105][ T307] test-bond1 (unregistering): Released all slaves [ 14.489035][ T308] test-bond2 (unregistering): Released all slaves