[ 11.200181][ T283] gre: GRE over IPv4 demultiplexor driver [ 11.222043][ T283] ip6_gre: GRE over IPv6 tunneling driver [ 11.332567][ T50] ip6_tunnel: er6 xmit: Local address not yet configured! [ 11.519530][ T67] ip6_tunnel: er6 xmit: Local address not yet configured! [ 11.525650][ T9] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 11.533491][ T67] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 11.767759][ T50] ip6_tunnel: er6 xmit: Local address not yet configured! [ 12.811318][ T293] Mirror/redirect action on [ 17.974530][ T304] [ 17.974707][ T304] ============================================ [ 17.974904][ T304] WARNING: possible recursive locking detected [ 17.975085][ T304] 6.13.0-rc5-virtme #1 Not tainted [ 17.975238][ T304] -------------------------------------------- [ 17.975426][ T304] ip/304 is trying to acquire lock: [ 17.975572][ T304] ffffffffa5bf6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 17.975875][ T304] [ 17.975875][ T304] but task is already holding lock: [ 17.976088][ T304] ffffffffa5bf6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 17.976385][ T304] [ 17.976385][ T304] other info that might help us debug this: [ 17.976596][ T304] Possible unsafe locking scenario: [ 17.976596][ T304] [ 17.976808][ T304] CPU0 [ 17.976915][ T304] ---- [ 17.977025][ T304] lock((netdev_chain).rwsem); [ 17.977173][ T304] lock((netdev_chain).rwsem); [ 17.977319][ T304] [ 17.977319][ T304] *** DEADLOCK *** [ 17.977319][ T304] [ 17.977533][ T304] May be due to missing lock nesting notation [ 17.977533][ T304] [ 17.977747][ T304] 2 locks held by ip/304: [ 17.977858][ T304] #0: ffffffffa5c07e88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 17.978122][ T304] #1: ffffffffa5bf6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 17.978423][ T304] [ 17.978423][ T304] stack backtrace: [ 17.978602][ T304] CPU: 3 UID: 0 PID: 304 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 17.978825][ T304] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.979010][ T304] Call Trace: [ 17.979123][ T304] [ 17.979201][ T304] dump_stack_lvl+0x82/0xd0 [ 17.979353][ T304] print_deadlock_bug+0x40a/0x650 [ 17.979504][ T304] validate_chain+0x5bf/0xae0 [ 17.979653][ T304] ? __pfx_validate_chain+0x10/0x10 [ 17.979800][ T304] ? hlock_class+0x4e/0x130 [ 17.979947][ T304] ? mark_lock+0x38/0x3e0 [ 17.980060][ T304] __lock_acquire+0xb9a/0x1680 [ 17.980211][ T304] lock_acquire.part.0+0xeb/0x330 [ 17.980356][ T304] ? blocking_notifier_call_chain+0x50/0x90 [ 17.980538][ T304] ? __lock_acquire+0xb9a/0x1680 [ 17.980686][ T304] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 17.980835][ T304] ? trace_lock_acquire+0x14c/0x1f0 [ 17.980983][ T304] ? lock_acquire+0x32/0xc0 [ 17.981133][ T304] ? blocking_notifier_call_chain+0x50/0x90 [ 17.981316][ T304] down_read+0x9f/0x340 [ 17.981429][ T304] ? blocking_notifier_call_chain+0x50/0x90 [ 17.981612][ T304] ? __pfx_down_read+0x10/0x10 [ 17.981775][ T304] ? __lock_release+0x103/0x460 [ 17.981922][ T304] blocking_notifier_call_chain+0x50/0x90 [ 17.982067][ T304] __netdev_upper_dev_unlink+0xd9/0x220 [ 17.982216][ T304] ? mark_held_locks+0x9e/0xe0 [ 17.982361][ T304] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 17.982542][ T304] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 17.982724][ T304] ? __try_to_del_timer_sync+0xe7/0x140 [ 17.982871][ T304] ? __pfx___try_to_del_timer_sync+0x10/0x10 [ 17.983054][ T304] ? mark_held_locks+0x9e/0xe0 [ 17.983198][ T304] netdev_upper_dev_unlink+0x71/0xa0 [ 17.983345][ T304] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 17.983525][ T304] ? mutex_is_locked+0x1c/0x60 [ 17.983671][ T304] ? rtnl_is_locked+0x15/0x20 [ 17.983815][ T304] ? netdev_master_upper_dev_get+0x13/0x120 [ 17.983994][ T304] vrf_device_event+0x78/0xe0 [ 17.984141][ T304] notifier_call_chain+0xcd/0x150 [ 17.984289][ T304] blocking_notifier_call_chain+0x66/0x90 [ 17.984438][ T304] unregister_netdevice_many_notify+0xa83/0x1580 [ 17.984619][ T304] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 17.984800][ T304] ? rtnl_dellink+0x228/0xa40 [ 17.984945][ T304] ? sock_def_readable+0x11e/0x300 [ 17.985092][ T304] ? rtnl_is_locked+0x15/0x20 [ 17.985236][ T304] ? unregister_netdevice_queue+0x70/0x410 [ 17.985417][ T304] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 17.985601][ T304] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 17.985784][ T304] rtnl_dellink+0x348/0xa40 [ 17.985930][ T304] ? __pfx_rtnl_dellink+0x10/0x10 [ 17.986090][ T304] ? find_held_lock+0x2c/0x110 [ 17.986235][ T304] ? __lock_release+0x103/0x460 [ 17.986379][ T304] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 17.986524][ T304] ? __pfx___lock_release+0x10/0x10 [ 17.986673][ T304] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 17.986820][ T304] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 17.986964][ T304] ? __pfx_rtnl_dellink+0x10/0x10 [ 17.987110][ T304] rtnetlink_rcv_msg+0x712/0xc10 [ 17.987254][ T304] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 17.987398][ T304] ? hlock_class+0x4e/0x130 [ 17.987540][ T304] ? mark_lock+0x38/0x3e0 [ 17.987656][ T304] ? __lock_acquire+0xb9a/0x1680 [ 17.987802][ T304] netlink_rcv_skb+0x130/0x360 [ 17.987948][ T304] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 17.988094][ T304] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 17.988244][ T304] ? netlink_deliver_tap+0x13e/0x340 [ 17.988391][ T304] ? netlink_deliver_tap+0xc3/0x340 [ 17.988538][ T304] netlink_unicast+0x44b/0x710 [ 17.988686][ T304] ? __pfx_netlink_unicast+0x10/0x10 [ 17.988831][ T304] ? find_held_lock+0x2c/0x110 [ 17.988978][ T304] netlink_sendmsg+0x723/0xbe0 [ 17.989123][ T304] ? __pfx_netlink_sendmsg+0x10/0x10 [ 17.989270][ T304] ____sys_sendmsg+0x7ac/0xa10 [ 17.989416][ T304] ? __pfx_____sys_sendmsg+0x10/0x10 [ 17.989559][ T304] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 17.989745][ T304] ___sys_sendmsg+0xee/0x170 [ 17.989890][ T304] ? __pfx____sys_sendmsg+0x10/0x10 [ 17.990036][ T304] ? kasan_save_stack+0x34/0x50 [ 17.990184][ T304] ? kasan_save_stack+0x24/0x50 [ 17.990328][ T304] ? __kasan_record_aux_stack+0x8e/0xa0 [ 17.990473][ T304] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 17.990657][ T304] ? __x64_sys_close+0x7c/0xd0 [ 17.990806][ T304] ? do_syscall_64+0xc1/0x1d0 [ 17.990951][ T304] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 17.991131][ T304] ? __lock_acquire+0xb9a/0x1680 [ 17.991279][ T304] ? find_held_lock+0x2c/0x110 [ 17.991423][ T304] ? __lock_release+0x103/0x460 [ 17.991568][ T304] ? __virt_addr_valid+0x22b/0x430 [ 17.991732][ T304] ? __pfx___lock_release+0x10/0x10 [ 17.991878][ T304] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 17.992028][ T304] __sys_sendmsg+0x109/0x1a0 [ 17.992173][ T304] ? __pfx___sys_sendmsg+0x10/0x10 [ 17.992319][ T304] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 17.992506][ T304] do_syscall_64+0xc1/0x1d0 [ 17.992651][ T304] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 17.992830][ T304] RIP: 0033:0x7f23c82ea9a7 [ 17.992987][ T304] 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 [ 17.993499][ T304] RSP: 002b:00007ffd521ab408 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 17.993721][ T304] RAX: ffffffffffffffda RBX: 00007ffd521abb30 RCX: 00007f23c82ea9a7 [ 17.993939][ T304] RDX: 0000000000000000 RSI: 00007ffd521ab470 RDI: 0000000000000005 [ 17.994156][ T304] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 17.994374][ T304] R10: 00007f23c81a8ef8 R11: 0000000000000246 R12: 0000000000000002 [ 17.994592][ T304] R13: 000000006779675b R14: 0000000000498600 R15: 0000000000000000 [ 17.994816][ T304] [ 18.033593][ T304] ip (304) used greatest stack depth: 23832 bytes left