[ 27.847952][ T415] gre: GRE over IPv4 demultiplexor driver [ 27.876432][ T415] ip6_gre: GRE over IPv6 tunneling driver [ 27.979911][ T30] ip6_tunnel: er6 xmit: Local address not yet configured! [ 28.175840][ T70] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 28.332101][ T63] ip6_tunnel: er6 xmit: Local address not yet configured! [ 28.619902][ T63] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 28.907847][ T9] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 29.490483][ T425] Mirror/redirect action on [ 34.663907][ T436] [ 34.664045][ T436] ============================================ [ 34.664238][ T436] WARNING: possible recursive locking detected [ 34.664419][ T436] 6.13.0-rc5-virtme #1 Not tainted [ 34.664569][ T436] -------------------------------------------- [ 34.664751][ T436] ip/436 is trying to acquire lock: [ 34.664896][ T436] ffffffffbc3f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 34.665198][ T436] [ 34.665198][ T436] but task is already holding lock: [ 34.665406][ T436] ffffffffbc3f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 34.665690][ T436] [ 34.665690][ T436] other info that might help us debug this: [ 34.665897][ T436] Possible unsafe locking scenario: [ 34.665897][ T436] [ 34.666119][ T436] CPU0 [ 34.666226][ T436] ---- [ 34.666332][ T436] lock((netdev_chain).rwsem); [ 34.666478][ T436] lock((netdev_chain).rwsem); [ 34.666629][ T436] [ 34.666629][ T436] *** DEADLOCK *** [ 34.666629][ T436] [ 34.666843][ T436] May be due to missing lock nesting notation [ 34.666843][ T436] [ 34.667051][ T436] 2 locks held by ip/436: [ 34.667160][ T436] #0: ffffffffbc407e88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 34.667421][ T436] #1: ffffffffbc3f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 34.667711][ T436] [ 34.667711][ T436] stack backtrace: [ 34.667900][ T436] CPU: 0 UID: 0 PID: 436 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 34.668117][ T436] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.668292][ T436] Call Trace: [ 34.668406][ T436] [ 34.668484][ T436] dump_stack_lvl+0x82/0xd0 [ 34.668647][ T436] print_deadlock_bug+0x40a/0x650 [ 34.668797][ T436] validate_chain+0x5bf/0xae0 [ 34.668946][ T436] ? __pfx_validate_chain+0x10/0x10 [ 34.669096][ T436] ? hlock_class+0x4e/0x130 [ 34.669252][ T436] ? mark_lock+0x38/0x3e0 [ 34.669361][ T436] __lock_acquire+0xb9a/0x1680 [ 34.669515][ T436] lock_acquire.part.0+0xeb/0x330 [ 34.669665][ T436] ? blocking_notifier_call_chain+0x50/0x90 [ 34.669846][ T436] ? __lock_acquire+0xb9a/0x1680 [ 34.669989][ T436] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 34.670142][ T436] ? trace_lock_acquire+0x14c/0x1f0 [ 34.670286][ T436] ? lock_acquire+0x32/0xc0 [ 34.670432][ T436] ? blocking_notifier_call_chain+0x50/0x90 [ 34.670610][ T436] down_read+0x9f/0x340 [ 34.670721][ T436] ? blocking_notifier_call_chain+0x50/0x90 [ 34.670898][ T436] ? __pfx_down_read+0x10/0x10 [ 34.671044][ T436] ? __lock_release+0x103/0x460 [ 34.671188][ T436] blocking_notifier_call_chain+0x50/0x90 [ 34.671331][ T436] __netdev_upper_dev_unlink+0xd9/0x220 [ 34.671481][ T436] ? mark_held_locks+0x9e/0xe0 [ 34.671624][ T436] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 34.671799][ T436] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 34.671977][ T436] ? __try_to_del_timer_sync+0xe7/0x140 [ 34.672120][ T436] ? __pfx___try_to_del_timer_sync+0x10/0x10 [ 34.672297][ T436] ? mark_held_locks+0x9e/0xe0 [ 34.672441][ T436] netdev_upper_dev_unlink+0x71/0xa0 [ 34.672589][ T436] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 34.672766][ T436] ? mutex_is_locked+0x1c/0x60 [ 34.672909][ T436] ? rtnl_is_locked+0x15/0x20 [ 34.673053][ T436] ? netdev_master_upper_dev_get+0x13/0x120 [ 34.673230][ T436] vrf_device_event+0x78/0xe0 [ 34.673375][ T436] notifier_call_chain+0xcd/0x150 [ 34.673519][ T436] blocking_notifier_call_chain+0x66/0x90 [ 34.673670][ T436] unregister_netdevice_many_notify+0xa83/0x1580 [ 34.673851][ T436] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 34.674030][ T436] ? rtnl_dellink+0x228/0xa40 [ 34.674178][ T436] ? sock_def_readable+0x11e/0x300 [ 34.674325][ T436] ? rtnl_is_locked+0x15/0x20 [ 34.674466][ T436] ? unregister_netdevice_queue+0x70/0x410 [ 34.674646][ T436] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 34.674825][ T436] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 34.675003][ T436] rtnl_dellink+0x348/0xa40 [ 34.675147][ T436] ? __pfx_rtnl_dellink+0x10/0x10 [ 34.675303][ T436] ? find_held_lock+0x2c/0x110 [ 34.675446][ T436] ? __lock_release+0x103/0x460 [ 34.675587][ T436] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 34.675729][ T436] ? __pfx___lock_release+0x10/0x10 [ 34.675882][ T436] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 34.676030][ T436] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 34.676171][ T436] ? __pfx_rtnl_dellink+0x10/0x10 [ 34.676313][ T436] rtnetlink_rcv_msg+0x712/0xc10 [ 34.676455][ T436] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 34.676600][ T436] ? hlock_class+0x4e/0x130 [ 34.676740][ T436] ? mark_lock+0x38/0x3e0 [ 34.676854][ T436] ? __lock_acquire+0xb9a/0x1680 [ 34.676996][ T436] netlink_rcv_skb+0x130/0x360 [ 34.677141][ T436] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 34.677294][ T436] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 34.677453][ T436] ? netlink_deliver_tap+0x13e/0x340 [ 34.677609][ T436] ? netlink_deliver_tap+0xc3/0x340 [ 34.677766][ T436] netlink_unicast+0x44b/0x710 [ 34.677929][ T436] ? __pfx_netlink_unicast+0x10/0x10 [ 34.678085][ T436] ? find_held_lock+0x2c/0x110 [ 34.678246][ T436] netlink_sendmsg+0x723/0xbe0 [ 34.678406][ T436] ? __pfx_netlink_sendmsg+0x10/0x10 [ 34.678565][ T436] ____sys_sendmsg+0x7ac/0xa10 [ 34.678724][ T436] ? __pfx_____sys_sendmsg+0x10/0x10 [ 34.678881][ T436] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 34.679088][ T436] ___sys_sendmsg+0xee/0x170 [ 34.679246][ T436] ? __pfx____sys_sendmsg+0x10/0x10 [ 34.679404][ T436] ? kasan_save_stack+0x34/0x50 [ 34.679571][ T436] ? kasan_save_stack+0x24/0x50 [ 34.679729][ T436] ? __kasan_record_aux_stack+0x8e/0xa0 [ 34.679888][ T436] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 34.680086][ T436] ? __x64_sys_close+0x7c/0xd0 [ 34.680251][ T436] ? do_syscall_64+0xc1/0x1d0 [ 34.680412][ T436] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 34.680609][ T436] ? __lock_acquire+0xb9a/0x1680 [ 34.680769][ T436] ? find_held_lock+0x2c/0x110 [ 34.680928][ T436] ? __lock_release+0x103/0x460 [ 34.681088][ T436] ? __virt_addr_valid+0x22b/0x430 [ 34.681249][ T436] ? __pfx___lock_release+0x10/0x10 [ 34.681411][ T436] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 34.681572][ T436] __sys_sendmsg+0x109/0x1a0 [ 34.681729][ T436] ? __pfx___sys_sendmsg+0x10/0x10 [ 34.681886][ T436] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 34.682086][ T436] do_syscall_64+0xc1/0x1d0 [ 34.682245][ T436] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 34.682441][ T436] RIP: 0033:0x7fc53d4fb9a7 [ 34.682600][ T436] 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 [ 34.683110][ T436] RSP: 002b:00007ffc76361c28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 34.683326][ T436] RAX: ffffffffffffffda RBX: 00007ffc76362350 RCX: 00007fc53d4fb9a7 [ 34.683545][ T436] RDX: 0000000000000000 RSI: 00007ffc76361c90 RDI: 0000000000000005 [ 34.683758][ T436] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 34.683975][ T436] R10: 00007fc53d3b9ef8 R11: 0000000000000246 R12: 0000000000000002 [ 34.684194][ T436] R13: 0000000067793664 R14: 0000000000498600 R15: 0000000000000000 [ 34.684417][ T436]