[ 10.756210][ T251] bond1: (slave dummy1): making interface the new active one [ 10.757413][ T251] bond1: (slave dummy1): Enslaving as an active interface with an up link [ 10.871423][ T253] bond1: (slave dummy2): Enslaving as a backup interface with an up link [ 10.958118][ T255] dummy1: entered promiscuous mode [ 11.430278][ T275] dummy1: left promiscuous mode [ 11.439665][ T275] ip (275) used greatest stack depth: 23304 bytes left [ 11.792072][ T276] [ 11.792290][ T276] ============================================ [ 11.792483][ T276] WARNING: possible recursive locking detected [ 11.792667][ T276] 6.13.0-rc5-virtme #1 Not tainted [ 11.792817][ T276] -------------------------------------------- [ 11.793004][ T276] ip/276 is trying to acquire lock: [ 11.793150][ T276] ffffffffb79f0a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 11.793452][ T276] [ 11.793452][ T276] but task is already holding lock: [ 11.793667][ T276] ffffffffb79f0a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 11.793956][ T276] [ 11.793956][ T276] other info that might help us debug this: [ 11.794167][ T276] Possible unsafe locking scenario: [ 11.794167][ T276] [ 11.794374][ T276] CPU0 [ 11.794484][ T276] ---- [ 11.794593][ T276] lock((netdev_chain).rwsem); [ 11.794738][ T276] lock((netdev_chain).rwsem); [ 11.794885][ T276] [ 11.794885][ T276] *** DEADLOCK *** [ 11.794885][ T276] [ 11.795093][ T276] May be due to missing lock nesting notation [ 11.795093][ T276] [ 11.795307][ T276] 2 locks held by ip/276: [ 11.795417][ T276] #0: ffffffffb7a01dc8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 11.795679][ T276] #1: ffffffffb79f0a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 11.795975][ T276] [ 11.795975][ T276] stack backtrace: [ 11.796152][ T276] CPU: 2 UID: 0 PID: 276 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 11.796369][ T276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.796620][ T276] Call Trace: [ 11.796730][ T276] [ 11.796806][ T276] dump_stack_lvl+0x82/0xd0 [ 11.796965][ T276] print_deadlock_bug+0x40a/0x650 [ 11.797114][ T276] validate_chain+0x5bf/0xae0 [ 11.797261][ T276] ? __pfx_validate_chain+0x10/0x10 [ 11.797412][ T276] ? hlock_class+0x4e/0x130 [ 11.797570][ T276] ? mark_lock+0x38/0x3e0 [ 11.797683][ T276] __lock_acquire+0xb9a/0x1680 [ 11.797832][ T276] lock_acquire.part.0+0xeb/0x330 [ 11.797981][ T276] ? blocking_notifier_call_chain+0x50/0x90 [ 11.798163][ T276] ? __kasan_slab_free+0x38/0x50 [ 11.798311][ T276] ? kmem_cache_free+0xf8/0x330 [ 11.798459][ T276] ? remove_proc_entry+0x18d/0x3e0 [ 11.798608][ T276] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.798757][ T276] ? trace_lock_acquire+0x14c/0x1f0 [ 11.798909][ T276] ? lock_acquire+0x32/0xc0 [ 11.799054][ T276] ? blocking_notifier_call_chain+0x50/0x90 [ 11.799236][ T276] down_read+0x9f/0x340 [ 11.799349][ T276] ? blocking_notifier_call_chain+0x50/0x90 [ 11.799547][ T276] ? __pfx_down_read+0x10/0x10 [ 11.799695][ T276] ? __debug_check_no_obj_freed+0x253/0x520 [ 11.799879][ T276] blocking_notifier_call_chain+0x50/0x90 [ 11.800025][ T276] __netdev_upper_dev_unlink+0xd9/0x220 [ 11.800174][ T276] ? mark_held_locks+0x9e/0xe0 [ 11.800321][ T276] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 11.800520][ T276] ? unregister_netdevice_queue+0x70/0x410 [ 11.800719][ T276] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 11.800918][ T276] ? remove_proc_entry+0x18d/0x3e0 [ 11.801078][ T276] netdev_upper_dev_unlink+0x71/0xa0 [ 11.801236][ T276] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 11.801437][ T276] macvlan_device_event+0x51b/0x7e0 [ 11.801600][ T276] ? __pfx_macvlan_device_event+0x10/0x10 [ 11.801761][ T276] ? bond_remove_proc_entry+0x10f/0x1a0 [ 11.801925][ T276] notifier_call_chain+0xcd/0x150 [ 11.802086][ T276] blocking_notifier_call_chain+0x66/0x90 [ 11.802242][ T276] unregister_netdevice_many_notify+0xa7b/0x1580 [ 11.802444][ T276] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 11.802646][ T276] ? rtnl_dellink+0x228/0xa40 [ 11.802812][ T276] ? sock_def_readable+0x11e/0x300 [ 11.802972][ T276] ? __pfx___mutex_lock+0x10/0x10 [ 11.803136][ T276] ? rtnl_is_locked+0x15/0x20 [ 11.803297][ T276] ? unregister_netdevice_queue+0x70/0x410 [ 11.803493][ T276] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 11.803693][ T276] ? __nla_validate_parse+0x48/0x3d0 [ 11.803857][ T276] rtnl_dellink+0x348/0xa40 [ 11.804018][ T276] ? __pfx_rtnl_dellink+0x10/0x10 [ 11.804193][ T276] ? find_held_lock+0x2c/0x110 [ 11.804353][ T276] ? __lock_release+0x103/0x460 [ 11.804511][ T276] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 11.804674][ T276] ? __pfx___lock_release+0x10/0x10 [ 11.804833][ T276] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.805000][ T276] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 11.805160][ T276] ? __pfx_rtnl_dellink+0x10/0x10 [ 11.805320][ T276] rtnetlink_rcv_msg+0x712/0xc10 [ 11.805481][ T276] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 11.805649][ T276] ? hlock_class+0x4e/0x130 [ 11.805807][ T276] ? mark_lock+0x38/0x3e0 [ 11.805930][ T276] ? __lock_acquire+0xb9a/0x1680 [ 11.806075][ T276] netlink_rcv_skb+0x130/0x360 [ 11.806220][ T276] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 11.806365][ T276] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 11.806522][ T276] ? netlink_deliver_tap+0x13e/0x340 [ 11.806669][ T276] ? netlink_deliver_tap+0xc3/0x340 [ 11.806820][ T276] netlink_unicast+0x44b/0x710 [ 11.806972][ T276] ? __pfx_netlink_unicast+0x10/0x10 [ 11.807117][ T276] ? find_held_lock+0x2c/0x110 [ 11.807263][ T276] netlink_sendmsg+0x723/0xbe0 [ 11.807408][ T276] ? __pfx_netlink_sendmsg+0x10/0x10 [ 11.807556][ T276] ____sys_sendmsg+0x7ac/0xa10 [ 11.807702][ T276] ? __pfx_____sys_sendmsg+0x10/0x10 [ 11.807856][ T276] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 11.808041][ T276] ___sys_sendmsg+0xee/0x170 [ 11.808186][ T276] ? __pfx____sys_sendmsg+0x10/0x10 [ 11.808332][ T276] ? kasan_save_stack+0x34/0x50 [ 11.808477][ T276] ? kasan_save_stack+0x24/0x50 [ 11.808621][ T276] ? __kasan_record_aux_stack+0x8e/0xa0 [ 11.808765][ T276] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 11.808951][ T276] ? __x64_sys_close+0x7c/0xd0 [ 11.809096][ T276] ? do_syscall_64+0xc1/0x1d0 [ 11.809241][ T276] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 11.809421][ T276] ? __lock_acquire+0xb9a/0x1680 [ 11.809570][ T276] ? find_held_lock+0x2c/0x110 [ 11.809728][ T276] ? __lock_release+0x103/0x460 [ 11.809887][ T276] ? __virt_addr_valid+0x22b/0x430 [ 11.810054][ T276] ? __pfx___lock_release+0x10/0x10 [ 11.810213][ T276] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.810375][ T276] __sys_sendmsg+0x109/0x1a0 [ 11.810533][ T276] ? __pfx___sys_sendmsg+0x10/0x10 [ 11.810691][ T276] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 11.810893][ T276] do_syscall_64+0xc1/0x1d0 [ 11.811052][ T276] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 11.811257][ T276] RIP: 0033:0x7fd0849489a7 [ 11.811425][ 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 [ 11.811984][ T276] RSP: 002b:00007ffeb322c858 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 11.812229][ T276] RAX: ffffffffffffffda RBX: 00007ffeb322cf80 RCX: 00007fd0849489a7 [ 11.812466][ T276] RDX: 0000000000000000 RSI: 00007ffeb322c8c0 RDI: 0000000000000005 [ 11.812702][ T276] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 11.812939][ T276] R10: 00007fd084806ef8 R11: 0000000000000246 R12: 0000000000000001 [ 11.813177][ T276] R13: 0000000067790330 R14: 0000000000498600 R15: 0000000000000000 [ 11.813419][ T276] [ 11.841300][ T276] bond1 (unregistering): (slave dummy1): Releasing backup interface [ 11.850807][ T276] bond1 (unregistering): (slave dummy2): Releasing backup interface [ 11.870072][ T276] bond1 (unregistering): Released all slaves [ 12.824404][ T308] bond1: (slave dummy1): Enslaving as a backup interface with an up link [ 12.844578][ T11] bond1: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 12.919178][ T310] bond1: (slave dummy2): Enslaving as a backup interface with an up link [ 12.951328][ T11] bond1: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 12.990370][ T311] dummy1: entered promiscuous mode [ 12.990580][ T311] dummy2: entered promiscuous mode [ 13.319891][ T324] dummy1: left promiscuous mode [ 13.320147][ T324] dummy2: left promiscuous mode [ 13.561566][ T325] bond1 (unregistering): (slave dummy1): Removing an active aggregator [ 13.561833][ T325] bond1: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 13.562349][ T325] bond1 (unregistering): (slave dummy1): Releasing backup interface [ 13.574734][ T325] bond1 (unregistering): (slave dummy2): Removing an active aggregator [ 13.575213][ T325] bond1 (unregistering): (slave dummy2): Releasing backup interface [ 13.589231][ T325] bond1 (unregistering): Released all slaves [ 14.509313][ T354] bond1: (slave dummy1): Enslaving as a backup interface with an up link [ 14.572833][ T11] bond1: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 14.679255][ T277] bond1: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 15.037840][ T368] bond1: (slave dummy1): Removing an active aggregator [ 15.038282][ T368] bond1: (slave dummy1): Releasing backup interface [ 15.464887][ T372] bond1 (unregistering): Released all slaves [ 15.895743][ T389] bond1: (slave dummy1): Enslaving as a backup interface with an up link [ 15.927493][ T277] bond1: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 16.035590][ T277] bond1: Warning: No 802.3ad response from the link partner for any adapters in the bond [ 16.396795][ T402] bond1: (slave dummy1): Removing an active aggregator [ 16.397192][ T402] bond1: (slave dummy1): Releasing backup interface [ 16.814293][ T406] bond1 (unregistering): Released all slaves