[ 586.155647][ T5469] eth0: renamed from tmp [ 587.522240][ T5487] Initializing XFRM netlink socket [ 592.745758][ T5563] IPsec XFRM device driver [ 594.844354][ T5590] [ 594.844470][ T5590] ============================================ [ 594.844648][ T5590] WARNING: possible recursive locking detected [ 594.844825][ T5590] 6.13.0-rc5-virtme #1 Not tainted [ 594.844968][ T5590] -------------------------------------------- [ 594.845150][ T5590] ip/5590 is trying to acquire lock: [ 594.845287][ T5590] ffffffffae1f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 594.845581][ T5590] [ 594.845581][ T5590] but task is already holding lock: [ 594.845785][ T5590] ffffffffae1f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 594.846069][ T5590] [ 594.846069][ T5590] other info that might help us debug this: [ 594.846283][ T5590] Possible unsafe locking scenario: [ 594.846283][ T5590] [ 594.846487][ T5590] CPU0 [ 594.846592][ T5590] ---- [ 594.846697][ T5590] lock((netdev_chain).rwsem); [ 594.846838][ T5590] lock((netdev_chain).rwsem); [ 594.846980][ T5590] [ 594.846980][ T5590] *** DEADLOCK *** [ 594.846980][ T5590] [ 594.847189][ T5590] May be due to missing lock nesting notation [ 594.847189][ T5590] [ 594.847397][ T5590] 2 locks held by ip/5590: [ 594.847537][ T5590] #0: ffffffffae207e88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 594.847792][ T5590] #1: ffffffffae1f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 594.848075][ T5590] [ 594.848075][ T5590] stack backtrace: [ 594.848251][ T5590] CPU: 2 UID: 0 PID: 5590 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 594.848468][ T5590] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 594.848642][ T5590] Call Trace: [ 594.848750][ T5590] [ 594.848825][ T5590] dump_stack_lvl+0x82/0xd0 [ 594.848972][ T5590] print_deadlock_bug+0x40a/0x650 [ 594.849114][ T5590] validate_chain+0x5bf/0xae0 [ 594.849262][ T5590] ? __pfx_validate_chain+0x10/0x10 [ 594.849408][ T5590] ? hlock_class+0x4e/0x130 [ 594.849549][ T5590] ? mark_lock+0x38/0x3e0 [ 594.849658][ T5590] __lock_acquire+0xb9a/0x1680 [ 594.849802][ T5590] lock_acquire.part.0+0xeb/0x330 [ 594.849946][ T5590] ? blocking_notifier_call_chain+0x50/0x90 [ 594.850121][ T5590] ? __lock_acquire+0xb9a/0x1680 [ 594.850263][ T5590] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 594.850405][ T5590] ? trace_lock_acquire+0x14c/0x1f0 [ 594.850551][ T5590] ? lock_acquire+0x32/0xc0 [ 594.850692][ T5590] ? blocking_notifier_call_chain+0x50/0x90 [ 594.850868][ T5590] down_read+0x9f/0x340 [ 594.850976][ T5590] ? blocking_notifier_call_chain+0x50/0x90 [ 594.851157][ T5590] ? __pfx_down_read+0x10/0x10 [ 594.851301][ T5590] ? __lock_release+0x103/0x460 [ 594.851442][ T5590] blocking_notifier_call_chain+0x50/0x90 [ 594.851590][ T5590] __netdev_upper_dev_unlink+0xd9/0x220 [ 594.851734][ T5590] ? mark_held_locks+0x9e/0xe0 [ 594.851876][ T5590] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 594.852049][ T5590] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 594.852228][ T5590] ? __try_to_del_timer_sync+0xe7/0x140 [ 594.852371][ T5590] ? __pfx___try_to_del_timer_sync+0x10/0x10 [ 594.852552][ T5590] ? mark_held_locks+0x9e/0xe0 [ 594.852694][ T5590] netdev_upper_dev_unlink+0x71/0xa0 [ 594.852835][ T5590] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 594.853020][ T5590] ? mutex_is_locked+0x1c/0x60 [ 594.853170][ T5590] ? rtnl_is_locked+0x15/0x20 [ 594.853311][ T5590] ? netdev_master_upper_dev_get+0x13/0x120 [ 594.853487][ T5590] vrf_device_event+0x78/0xe0 [ 594.853631][ T5590] notifier_call_chain+0xcd/0x150 [ 594.853777][ T5590] blocking_notifier_call_chain+0x66/0x90 [ 594.853919][ T5590] unregister_netdevice_many_notify+0xa83/0x1580 [ 594.854097][ T5590] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 594.854273][ T5590] ? rtnl_dellink+0x228/0xa40 [ 594.854414][ T5590] ? sock_def_readable+0x11e/0x300 [ 594.854557][ T5590] ? __pfx___mutex_lock+0x10/0x10 [ 594.854703][ T5590] ? rtnl_is_locked+0x15/0x20 [ 594.854846][ T5590] ? unregister_netdevice_queue+0x70/0x410 [ 594.855020][ T5590] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 594.855197][ T5590] ? __nla_validate_parse+0x48/0x3d0 [ 594.855341][ T5590] rtnl_dellink+0x348/0xa40 [ 594.855482][ T5590] ? __pfx_rtnl_dellink+0x10/0x10 [ 594.855638][ T5590] ? find_held_lock+0x2c/0x110 [ 594.855781][ T5590] ? __lock_release+0x103/0x460 [ 594.855931][ T5590] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 594.856073][ T5590] ? __pfx___lock_release+0x10/0x10 [ 594.856222][ T5590] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 594.856364][ T5590] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 594.856506][ T5590] ? __pfx_rtnl_dellink+0x10/0x10 [ 594.856648][ T5590] rtnetlink_rcv_msg+0x712/0xc10 [ 594.856788][ T5590] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 594.856933][ T5590] ? hlock_class+0x4e/0x130 [ 594.857074][ T5590] ? mark_lock+0x38/0x3e0 [ 594.857183][ T5590] ? __lock_acquire+0xb9a/0x1680 [ 594.857325][ T5590] netlink_rcv_skb+0x130/0x360 [ 594.857468][ T5590] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 594.857609][ T5590] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 594.857754][ T5590] ? netlink_deliver_tap+0x13e/0x340 [ 594.857899][ T5590] ? netlink_deliver_tap+0xc3/0x340 [ 594.858043][ T5590] netlink_unicast+0x44b/0x710 [ 594.858187][ T5590] ? __pfx_netlink_unicast+0x10/0x10 [ 594.858327][ T5590] ? find_held_lock+0x2c/0x110 [ 594.858470][ T5590] netlink_sendmsg+0x723/0xbe0 [ 594.858613][ T5590] ? __pfx_netlink_sendmsg+0x10/0x10 [ 594.858758][ T5590] ____sys_sendmsg+0x7ac/0xa10 [ 594.858903][ T5590] ? __pfx_____sys_sendmsg+0x10/0x10 [ 594.859044][ T5590] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 594.859223][ T5590] ___sys_sendmsg+0xee/0x170 [ 594.859364][ T5590] ? __pfx____sys_sendmsg+0x10/0x10 [ 594.859506][ T5590] ? kasan_save_stack+0x34/0x50 [ 594.859647][ T5590] ? kasan_save_stack+0x24/0x50 [ 594.859788][ T5590] ? __kasan_record_aux_stack+0x8e/0xa0 [ 594.859933][ T5590] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 594.860108][ T5590] ? __x64_sys_close+0x7c/0xd0 [ 594.860249][ T5590] ? do_syscall_64+0xc1/0x1d0 [ 594.860394][ T5590] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 594.860571][ T5590] ? __lock_acquire+0xb9a/0x1680 [ 594.860713][ T5590] ? find_held_lock+0x2c/0x110 [ 594.860856][ T5590] ? __lock_release+0x103/0x460 [ 594.860996][ T5590] ? __virt_addr_valid+0x22b/0x430 [ 594.861143][ T5590] ? __pfx___lock_release+0x10/0x10 [ 594.861285][ T5590] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 594.861430][ T5590] __sys_sendmsg+0x109/0x1a0 [ 594.861571][ T5590] ? __pfx___sys_sendmsg+0x10/0x10 [ 594.861711][ T5590] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 594.861891][ T5590] do_syscall_64+0xc1/0x1d0 [ 594.862036][ T5590] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 594.862211][ T5590] RIP: 0033:0x7f7f59ec09a7 [ 594.862358][ T5590] 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 [ 594.862853][ T5590] RSP: 002b:00007ffdc934a358 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 594.863077][ T5590] RAX: ffffffffffffffda RBX: 00007ffdc934aa90 RCX: 00007f7f59ec09a7 [ 594.863290][ T5590] RDX: 0000000000000000 RSI: 00007ffdc934a3c0 RDI: 0000000000000005 [ 594.863501][ T5590] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 594.863711][ T5590] R10: 00007f7f59d7e4a8 R11: 0000000000000246 R12: 0000000000000001 [ 594.863926][ T5590] R13: 000000006779361a R14: 0000000000498600 R15: 0000000000000000 [ 594.864139][ T5590]