[ 11.737874][ T279] eth0: renamed from tmp [ 13.104341][ T298] Initializing XFRM netlink socket [ 18.229797][ T376] IPsec XFRM device driver [ 20.312561][ T404] [ 20.312746][ T404] ============================================ [ 20.312940][ T404] WARNING: possible recursive locking detected [ 20.313126][ T404] 6.13.0-rc5-virtme #1 Not tainted [ 20.313268][ T404] -------------------------------------------- [ 20.313443][ T404] ip/404 is trying to acquire lock: [ 20.313591][ T404] ffffffffae1f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 20.313889][ T404] [ 20.313889][ T404] but task is already holding lock: [ 20.314100][ T404] ffffffffae1f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 20.314383][ T404] [ 20.314383][ T404] other info that might help us debug this: [ 20.314589][ T404] Possible unsafe locking scenario: [ 20.314589][ T404] [ 20.314796][ T404] CPU0 [ 20.314902][ T404] ---- [ 20.315011][ T404] lock((netdev_chain).rwsem); [ 20.315153][ T404] lock((netdev_chain).rwsem); [ 20.315296][ T404] [ 20.315296][ T404] *** DEADLOCK *** [ 20.315296][ T404] [ 20.315502][ T404] May be due to missing lock nesting notation [ 20.315502][ T404] [ 20.315708][ T404] 2 locks held by ip/404: [ 20.315816][ T404] #0: ffffffffae207e88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 20.316080][ T404] #1: ffffffffae1f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 20.316368][ T404] [ 20.316368][ T404] stack backtrace: [ 20.316545][ T404] CPU: 3 UID: 0 PID: 404 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 20.316758][ T404] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.316938][ T404] Call Trace: [ 20.317047][ T404] [ 20.317133][ T404] dump_stack_lvl+0x82/0xd0 [ 20.317277][ T404] print_deadlock_bug+0x40a/0x650 [ 20.317419][ T404] validate_chain+0x5bf/0xae0 [ 20.317559][ T404] ? __pfx_validate_chain+0x10/0x10 [ 20.317702][ T404] ? hlock_class+0x4e/0x130 [ 20.317841][ T404] ? mark_lock+0x38/0x3e0 [ 20.317966][ T404] __lock_acquire+0xb9a/0x1680 [ 20.318115][ T404] lock_acquire.part.0+0xeb/0x330 [ 20.318258][ T404] ? blocking_notifier_call_chain+0x50/0x90 [ 20.318435][ T404] ? __lock_acquire+0xb9a/0x1680 [ 20.318578][ T404] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 20.318721][ T404] ? trace_lock_acquire+0x14c/0x1f0 [ 20.318865][ T404] ? lock_acquire+0x32/0xc0 [ 20.319008][ T404] ? blocking_notifier_call_chain+0x50/0x90 [ 20.319201][ T404] down_read+0x9f/0x340 [ 20.319307][ T404] ? blocking_notifier_call_chain+0x50/0x90 [ 20.319482][ T404] ? __pfx_down_read+0x10/0x10 [ 20.319622][ T404] ? __lock_release+0x103/0x460 [ 20.319761][ T404] blocking_notifier_call_chain+0x50/0x90 [ 20.319901][ T404] __netdev_upper_dev_unlink+0xd9/0x220 [ 20.320061][ T404] ? mark_held_locks+0x9e/0xe0 [ 20.320208][ T404] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 20.320385][ T404] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 20.320564][ T404] ? __try_to_del_timer_sync+0xe7/0x140 [ 20.320706][ T404] ? __pfx___try_to_del_timer_sync+0x10/0x10 [ 20.320883][ T404] ? mark_held_locks+0x9e/0xe0 [ 20.321029][ T404] netdev_upper_dev_unlink+0x71/0xa0 [ 20.321174][ T404] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 20.321356][ T404] ? mutex_is_locked+0x1c/0x60 [ 20.321500][ T404] ? rtnl_is_locked+0x15/0x20 [ 20.321645][ T404] ? netdev_master_upper_dev_get+0x13/0x120 [ 20.321821][ T404] vrf_device_event+0x78/0xe0 [ 20.321972][ T404] notifier_call_chain+0xcd/0x150 [ 20.322115][ T404] blocking_notifier_call_chain+0x66/0x90 [ 20.322258][ T404] unregister_netdevice_many_notify+0xa83/0x1580 [ 20.322438][ T404] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 20.322614][ T404] ? rtnl_dellink+0x228/0xa40 [ 20.322756][ T404] ? sock_def_readable+0x11e/0x300 [ 20.322901][ T404] ? __pfx___mutex_lock+0x10/0x10 [ 20.323049][ T404] ? rtnl_is_locked+0x15/0x20 [ 20.323198][ T404] ? unregister_netdevice_queue+0x70/0x410 [ 20.323376][ T404] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 20.323554][ T404] ? __nla_validate_parse+0x48/0x3d0 [ 20.323699][ T404] rtnl_dellink+0x348/0xa40 [ 20.323844][ T404] ? __pfx_rtnl_dellink+0x10/0x10 [ 20.324005][ T404] ? find_held_lock+0x2c/0x110 [ 20.324146][ T404] ? __lock_release+0x103/0x460 [ 20.324288][ T404] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 20.324430][ T404] ? __pfx___lock_release+0x10/0x10 [ 20.324587][ T404] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 20.324727][ T404] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 20.324866][ T404] ? __pfx_rtnl_dellink+0x10/0x10 [ 20.325005][ T404] rtnetlink_rcv_msg+0x712/0xc10 [ 20.325147][ T404] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 20.325286][ T404] ? hlock_class+0x4e/0x130 [ 20.325424][ T404] ? mark_lock+0x38/0x3e0 [ 20.325534][ T404] ? __lock_acquire+0xb9a/0x1680 [ 20.325675][ T404] netlink_rcv_skb+0x130/0x360 [ 20.325815][ T404] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 20.325978][ T404] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 20.326127][ T404] ? netlink_deliver_tap+0x13e/0x340 [ 20.326273][ T404] ? netlink_deliver_tap+0xc3/0x340 [ 20.326418][ T404] netlink_unicast+0x44b/0x710 [ 20.326565][ T404] ? __pfx_netlink_unicast+0x10/0x10 [ 20.326709][ T404] ? find_held_lock+0x2c/0x110 [ 20.326854][ T404] netlink_sendmsg+0x723/0xbe0 [ 20.326998][ T404] ? __pfx_netlink_sendmsg+0x10/0x10 [ 20.327154][ T404] ____sys_sendmsg+0x7ac/0xa10 [ 20.327292][ T404] ? __pfx_____sys_sendmsg+0x10/0x10 [ 20.327432][ T404] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 20.327611][ T404] ___sys_sendmsg+0xee/0x170 [ 20.327749][ T404] ? __pfx____sys_sendmsg+0x10/0x10 [ 20.327889][ T404] ? kasan_save_stack+0x34/0x50 [ 20.328031][ T404] ? kasan_save_stack+0x24/0x50 [ 20.328171][ T404] ? __kasan_record_aux_stack+0x8e/0xa0 [ 20.328310][ T404] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 20.328504][ T404] ? __x64_sys_close+0x7c/0xd0 [ 20.328652][ T404] ? do_syscall_64+0xc1/0x1d0 [ 20.328799][ T404] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 20.328976][ T404] ? __lock_acquire+0xb9a/0x1680 [ 20.329121][ T404] ? find_held_lock+0x2c/0x110 [ 20.329263][ T404] ? __lock_release+0x103/0x460 [ 20.329404][ T404] ? __virt_addr_valid+0x22b/0x430 [ 20.329549][ T404] ? __pfx___lock_release+0x10/0x10 [ 20.329693][ T404] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 20.329842][ T404] __sys_sendmsg+0x109/0x1a0 [ 20.329984][ T404] ? __pfx___sys_sendmsg+0x10/0x10 [ 20.330127][ T404] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 20.330313][ T404] do_syscall_64+0xc1/0x1d0 [ 20.330457][ T404] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 20.330633][ T404] RIP: 0033:0x7f1b7c8b49a7 [ 20.330783][ T404] 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 [ 20.331290][ T404] RSP: 002b:00007ffeaba0f388 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 20.331505][ T404] RAX: ffffffffffffffda RBX: 00007ffeaba0fac0 RCX: 00007f1b7c8b49a7 [ 20.331721][ T404] RDX: 0000000000000000 RSI: 00007ffeaba0f3f0 RDI: 0000000000000005 [ 20.331939][ T404] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 20.332153][ T404] R10: 00007f1b7c7724a8 R11: 0000000000000246 R12: 0000000000000001 [ 20.332366][ T404] R13: 0000000067791318 R14: 0000000000498600 R15: 0000000000000000 [ 20.332581][ T404]