[ 10.773484][ T252] bond1: (slave dummy1): making interface the new active one [ 10.774622][ T252] bond1: (slave dummy1): Enslaving as an active interface with an up link [ 10.891282][ T254] bond1: (slave dummy2): Enslaving as a backup interface with an up link [ 10.980071][ T256] dummy1: entered promiscuous mode [ 11.467830][ T275] dummy1: left promiscuous mode [ 11.850129][ T276] [ 11.850300][ T276] ============================================ [ 11.850505][ T276] WARNING: possible recursive locking detected [ 11.850771][ T276] 6.13.0-rc5-virtme #1 Not tainted [ 11.850976][ T276] -------------------------------------------- [ 11.851211][ T276] ip/276 is trying to acquire lock: [ 11.851381][ T276] ffffffffa69f0a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 11.851772][ T276] [ 11.851772][ T276] but task is already holding lock: [ 11.852015][ T276] ffffffffa69f0a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 11.852408][ T276] [ 11.852408][ T276] other info that might help us debug this: [ 11.852704][ T276] Possible unsafe locking scenario: [ 11.852704][ T276] [ 11.852966][ T276] CPU0 [ 11.853133][ T276] ---- [ 11.853257][ T276] lock((netdev_chain).rwsem); [ 11.853421][ T276] lock((netdev_chain).rwsem); [ 11.853589][ T276] [ 11.853589][ T276] *** DEADLOCK *** [ 11.853589][ T276] [ 11.853888][ T276] May be due to missing lock nesting notation [ 11.853888][ T276] [ 11.854142][ T276] 2 locks held by ip/276: [ 11.854319][ T276] #0: ffffffffa6a01dc8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 11.854619][ T276] #1: ffffffffa69f0a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 11.854998][ T276] [ 11.854998][ T276] stack backtrace: [ 11.855235][ T276] CPU: 3 UID: 0 PID: 276 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 11.855490][ T276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.855735][ T276] Call Trace: [ 11.855863][ T276] [ 11.855948][ T276] dump_stack_lvl+0x82/0xd0 [ 11.856139][ T276] print_deadlock_bug+0x40a/0x650 [ 11.856365][ T276] validate_chain+0x5bf/0xae0 [ 11.856537][ T276] ? __pfx_validate_chain+0x10/0x10 [ 11.856760][ T276] ? hlock_class+0x4e/0x130 [ 11.856928][ T276] ? mark_lock+0x38/0x3e0 [ 11.857085][ T276] __lock_acquire+0xb9a/0x1680 [ 11.857281][ T276] lock_acquire.part.0+0xeb/0x330 [ 11.857459][ T276] ? blocking_notifier_call_chain+0x50/0x90 [ 11.857720][ T276] ? __kasan_slab_free+0x38/0x50 [ 11.857889][ T276] ? kmem_cache_free+0xf8/0x330 [ 11.858095][ T276] ? remove_proc_entry+0x18d/0x3e0 [ 11.858279][ T276] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.858448][ T276] ? trace_lock_acquire+0x14c/0x1f0 [ 11.858650][ T276] ? lock_acquire+0x32/0xc0 [ 11.858827][ T276] ? blocking_notifier_call_chain+0x50/0x90 [ 11.859030][ T276] down_read+0x9f/0x340 [ 11.859176][ T276] ? blocking_notifier_call_chain+0x50/0x90 [ 11.859429][ T276] ? __pfx_down_read+0x10/0x10 [ 11.859595][ T276] ? __debug_check_no_obj_freed+0x253/0x520 [ 11.859804][ T276] blocking_notifier_call_chain+0x50/0x90 [ 11.860020][ T276] __netdev_upper_dev_unlink+0xd9/0x220 [ 11.860214][ T276] ? mark_held_locks+0x9e/0xe0 [ 11.860394][ T276] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 11.860641][ T276] ? unregister_netdevice_queue+0x70/0x410 [ 11.860849][ T276] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 11.861111][ T276] ? remove_proc_entry+0x18d/0x3e0 [ 11.861361][ T276] netdev_upper_dev_unlink+0x71/0xa0 [ 11.861562][ T276] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 11.861796][ T276] macvlan_device_event+0x51b/0x7e0 [ 11.861964][ T276] ? __pfx_macvlan_device_event+0x10/0x10 [ 11.862142][ T276] ? bond_remove_proc_entry+0x10f/0x1a0 [ 11.862331][ T276] notifier_call_chain+0xcd/0x150 [ 11.862532][ T276] blocking_notifier_call_chain+0x66/0x90 [ 11.862706][ T276] unregister_netdevice_many_notify+0xa7b/0x1580 [ 11.862979][ T276] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 11.863191][ T276] ? rtnl_dellink+0x228/0xa40 [ 11.863358][ T276] ? sock_def_readable+0x11e/0x300 [ 11.863524][ T276] ? __pfx___mutex_lock+0x10/0x10 [ 11.863693][ T276] ? rtnl_is_locked+0x15/0x20 [ 11.863906][ T276] ? unregister_netdevice_queue+0x70/0x410 [ 11.864137][ T276] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 11.864402][ T276] ? __nla_validate_parse+0x48/0x3d0 [ 11.864590][ T276] rtnl_dellink+0x348/0xa40 [ 11.864759][ T276] ? __pfx_rtnl_dellink+0x10/0x10 [ 11.864939][ T276] ? find_held_lock+0x2c/0x110 [ 11.865115][ T276] ? __lock_release+0x103/0x460 [ 11.865369][ T276] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 11.865554][ T276] ? __pfx___lock_release+0x10/0x10 [ 11.865720][ T276] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.865887][ T276] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 11.866057][ T276] ? __pfx_rtnl_dellink+0x10/0x10 [ 11.866229][ T276] rtnetlink_rcv_msg+0x712/0xc10 [ 11.866394][ T276] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 11.866561][ T276] ? hlock_class+0x4e/0x130 [ 11.866734][ T276] ? mark_lock+0x38/0x3e0 [ 11.866896][ T276] ? __lock_acquire+0xb9a/0x1680 [ 11.867111][ T276] netlink_rcv_skb+0x130/0x360 [ 11.867332][ T276] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 11.867566][ T276] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 11.867814][ T276] ? netlink_deliver_tap+0x13e/0x340 [ 11.868069][ T276] ? netlink_deliver_tap+0xc3/0x340 [ 11.868320][ T276] netlink_unicast+0x44b/0x710 [ 11.868523][ T276] ? __pfx_netlink_unicast+0x10/0x10 [ 11.868692][ T276] ? find_held_lock+0x2c/0x110 [ 11.868863][ T276] netlink_sendmsg+0x723/0xbe0 [ 11.869066][ T276] ? __pfx_netlink_sendmsg+0x10/0x10 [ 11.869331][ T276] ____sys_sendmsg+0x7ac/0xa10 [ 11.869538][ T276] ? __pfx_____sys_sendmsg+0x10/0x10 [ 11.869745][ T276] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 11.870033][ T276] ___sys_sendmsg+0xee/0x170 [ 11.870280][ T276] ? __pfx____sys_sendmsg+0x10/0x10 [ 11.870519][ T276] ? kasan_save_stack+0x34/0x50 [ 11.870771][ T276] ? kasan_save_stack+0x24/0x50 [ 11.871032][ T276] ? __kasan_record_aux_stack+0x8e/0xa0 [ 11.871285][ T276] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 11.871599][ T276] ? __x64_sys_close+0x7c/0xd0 [ 11.871853][ T276] ? do_syscall_64+0xc1/0x1d0 [ 11.872062][ T276] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 11.872278][ T276] ? __lock_acquire+0xb9a/0x1680 [ 11.872448][ T276] ? find_held_lock+0x2c/0x110 [ 11.872618][ T276] ? __lock_release+0x103/0x460 [ 11.872785][ T276] ? __virt_addr_valid+0x22b/0x430 [ 11.872952][ T276] ? __pfx___lock_release+0x10/0x10 [ 11.873135][ T276] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.873307][ T276] __sys_sendmsg+0x109/0x1a0 [ 11.873472][ T276] ? __pfx___sys_sendmsg+0x10/0x10 [ 11.873637][ T276] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 11.873854][ T276] do_syscall_64+0xc1/0x1d0 [ 11.874018][ T276] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 11.874277][ T276] RIP: 0033:0x7fe7822de9a7 [ 11.874452][ T276] 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 [ 11.875039][ T276] RSP: 002b:00007ffe01ca63e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 11.875300][ T276] RAX: ffffffffffffffda RBX: 00007ffe01ca6b10 RCX: 00007fe7822de9a7 [ 11.875549][ T276] RDX: 0000000000000000 RSI: 00007ffe01ca6450 RDI: 0000000000000005 [ 11.875796][ T276] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 11.876041][ T276] R10: 00007fe78219cef8 R11: 0000000000000246 R12: 0000000000000001 [ 11.876306][ T276] R13: 00000000677957ec R14: 0000000000498600 R15: 0000000000000000 [ 11.876557][ T276] [ 11.904023][ T276] bond1 (unregistering): (slave dummy1): Releasing backup interface [ 11.916218][ T276] bond1 (unregistering): (slave dummy2): Releasing backup interface [ 11.936227][ T276] bond1 (unregistering): Released all slaves [ 12.927943][ T308] bond1: (slave dummy1): Enslaving as a backup interface with an up link [ 12.952467][ T11] bond1: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 12.983348][ T310] bond1: (slave dummy2): Enslaving as a backup interface with an up link [ 13.058441][ T11] bond1: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 13.061106][ T311] dummy1: entered promiscuous mode [ 13.061320][ T311] dummy2: entered promiscuous mode [ 13.389251][ T324] dummy1: left promiscuous mode [ 13.389508][ T324] dummy2: left promiscuous mode [ 13.647817][ T325] bond1 (unregistering): (slave dummy1): Removing an active aggregator [ 13.648071][ T325] bond1: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 13.648649][ T325] bond1 (unregistering): (slave dummy1): Releasing backup interface [ 13.658268][ T325] bond1 (unregistering): (slave dummy2): Removing an active aggregator [ 13.658837][ T325] bond1 (unregistering): (slave dummy2): Releasing backup interface [ 13.664627][ T325] bond1 (unregistering): Released all slaves [ 14.605118][ T353] bond1: (slave dummy1): Enslaving as a backup interface with an up link [ 14.666493][ T11] bond1: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 14.769413][ T356] bond1: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 15.107190][ T368] bond1: (slave dummy1): Removing an active aggregator [ 15.107605][ T368] bond1: (slave dummy1): Releasing backup interface [ 15.563330][ T372] bond1 (unregistering): Released all slaves [ 16.012292][ T389] bond1: (slave dummy1): Enslaving as a backup interface with an up link [ 16.041783][ T356] bond1: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 16.145268][ T69] bond1: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 16.428939][ T402] bond1: (slave dummy1): Removing an active aggregator [ 16.429281][ T402] bond1: (slave dummy1): Releasing backup interface [ 16.870336][ T406] bond1 (unregistering): Released all slaves