[ 10.126550][ T251] ip (251) used greatest stack depth: 22944 bytes left [ 11.510158][ T282] gre: GRE over IPv4 demultiplexor driver [ 11.526874][ T282] ip6_gre: GRE over IPv6 tunneling driver [ 11.648554][ T9] ip6_tunnel: er6 xmit: Local address not yet configured! [ 11.837155][ T51] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 12.033570][ T51] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 12.034194][ T67] ip6_tunnel: er6 xmit: Local address not yet configured! [ 12.089135][ T51] ip6_tunnel: er6 xmit: Local address not yet configured! [ 12.418589][ T67] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 13.147255][ T292] Mirror/redirect action on [ 18.371207][ T303] [ 18.371404][ T303] ============================================ [ 18.371607][ T303] WARNING: possible recursive locking detected [ 18.371791][ T303] 6.13.0-rc5-virtme #1 Not tainted [ 18.371944][ T303] -------------------------------------------- [ 18.372125][ T303] ip/303 is trying to acquire lock: [ 18.372271][ T303] ffffffff943f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 18.372576][ T303] [ 18.372576][ T303] but task is already holding lock: [ 18.372794][ T303] ffffffff943f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 18.373087][ T303] [ 18.373087][ T303] other info that might help us debug this: [ 18.373306][ T303] Possible unsafe locking scenario: [ 18.373306][ T303] [ 18.373519][ T303] CPU0 [ 18.373634][ T303] ---- [ 18.373746][ T303] lock((netdev_chain).rwsem); [ 18.373893][ T303] lock((netdev_chain).rwsem); [ 18.374040][ T303] [ 18.374040][ T303] *** DEADLOCK *** [ 18.374040][ T303] [ 18.374253][ T303] May be due to missing lock nesting notation [ 18.374253][ T303] [ 18.374468][ T303] 2 locks held by ip/303: [ 18.374580][ T303] #0: ffffffff94407e88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 18.374844][ T303] #1: ffffffff943f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 18.375144][ T303] [ 18.375144][ T303] stack backtrace: [ 18.375327][ T303] CPU: 3 UID: 0 PID: 303 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 18.375548][ T303] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.375743][ T303] Call Trace: [ 18.375856][ T303] [ 18.375932][ T303] dump_stack_lvl+0x82/0xd0 [ 18.376087][ T303] print_deadlock_bug+0x40a/0x650 [ 18.376236][ T303] validate_chain+0x5bf/0xae0 [ 18.376386][ T303] ? __pfx_validate_chain+0x10/0x10 [ 18.376536][ T303] ? hlock_class+0x4e/0x130 [ 18.376683][ T303] ? mark_lock+0x38/0x3e0 [ 18.376795][ T303] __lock_acquire+0xb9a/0x1680 [ 18.376946][ T303] lock_acquire.part.0+0xeb/0x330 [ 18.377097][ T303] ? blocking_notifier_call_chain+0x50/0x90 [ 18.377279][ T303] ? __lock_acquire+0xb9a/0x1680 [ 18.377427][ T303] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 18.377575][ T303] ? trace_lock_acquire+0x14c/0x1f0 [ 18.377721][ T303] ? lock_acquire+0x32/0xc0 [ 18.377866][ T303] ? blocking_notifier_call_chain+0x50/0x90 [ 18.378049][ T303] down_read+0x9f/0x340 [ 18.378166][ T303] ? blocking_notifier_call_chain+0x50/0x90 [ 18.378350][ T303] ? __pfx_down_read+0x10/0x10 [ 18.378497][ T303] ? __lock_release+0x103/0x460 [ 18.378644][ T303] blocking_notifier_call_chain+0x50/0x90 [ 18.378792][ T303] __netdev_upper_dev_unlink+0xd9/0x220 [ 18.378959][ T303] ? mark_held_locks+0x9e/0xe0 [ 18.379106][ T303] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 18.379288][ T303] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 18.379474][ T303] ? __try_to_del_timer_sync+0xe7/0x140 [ 18.379620][ T303] ? __pfx___try_to_del_timer_sync+0x10/0x10 [ 18.379800][ T303] ? mark_held_locks+0x9e/0xe0 [ 18.379947][ T303] netdev_upper_dev_unlink+0x71/0xa0 [ 18.380093][ T303] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 18.380278][ T303] ? mutex_is_locked+0x1c/0x60 [ 18.380424][ T303] ? rtnl_is_locked+0x15/0x20 [ 18.380574][ T303] ? netdev_master_upper_dev_get+0x13/0x120 [ 18.380753][ T303] vrf_device_event+0x78/0xe0 [ 18.380900][ T303] notifier_call_chain+0xcd/0x150 [ 18.381049][ T303] blocking_notifier_call_chain+0x66/0x90 [ 18.381195][ T303] unregister_netdevice_many_notify+0xa83/0x1580 [ 18.381377][ T303] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 18.381557][ T303] ? rtnl_dellink+0x228/0xa40 [ 18.381710][ T303] ? sock_def_readable+0x11e/0x300 [ 18.381859][ T303] ? rtnl_is_locked+0x15/0x20 [ 18.382003][ T303] ? unregister_netdevice_queue+0x70/0x410 [ 18.382187][ T303] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 18.382368][ T303] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 18.382554][ T303] rtnl_dellink+0x348/0xa40 [ 18.382702][ T303] ? __pfx_rtnl_dellink+0x10/0x10 [ 18.382868][ T303] ? find_held_lock+0x2c/0x110 [ 18.383015][ T303] ? __lock_release+0x103/0x460 [ 18.383161][ T303] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 18.383306][ T303] ? __pfx___lock_release+0x10/0x10 [ 18.383453][ T303] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 18.383604][ T303] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 18.383750][ T303] ? __pfx_rtnl_dellink+0x10/0x10 [ 18.383902][ T303] rtnetlink_rcv_msg+0x712/0xc10 [ 18.384049][ T303] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 18.384194][ T303] ? hlock_class+0x4e/0x130 [ 18.384340][ T303] ? mark_lock+0x38/0x3e0 [ 18.384453][ T303] ? __lock_acquire+0xb9a/0x1680 [ 18.384602][ T303] netlink_rcv_skb+0x130/0x360 [ 18.384748][ T303] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 18.384897][ T303] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 18.385048][ T303] ? netlink_deliver_tap+0x13e/0x340 [ 18.385197][ T303] ? netlink_deliver_tap+0xc3/0x340 [ 18.385345][ T303] netlink_unicast+0x44b/0x710 [ 18.385491][ T303] ? __pfx_netlink_unicast+0x10/0x10 [ 18.385638][ T303] ? find_held_lock+0x2c/0x110 [ 18.385786][ T303] netlink_sendmsg+0x723/0xbe0 [ 18.385937][ T303] ? __pfx_netlink_sendmsg+0x10/0x10 [ 18.386088][ T303] ____sys_sendmsg+0x7ac/0xa10 [ 18.386235][ T303] ? __pfx_____sys_sendmsg+0x10/0x10 [ 18.386383][ T303] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 18.386571][ T303] ___sys_sendmsg+0xee/0x170 [ 18.386718][ T303] ? __pfx____sys_sendmsg+0x10/0x10 [ 18.386865][ T303] ? kasan_save_stack+0x34/0x50 [ 18.387013][ T303] ? kasan_save_stack+0x24/0x50 [ 18.387158][ T303] ? __kasan_record_aux_stack+0x8e/0xa0 [ 18.387303][ T303] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 18.387485][ T303] ? __x64_sys_close+0x7c/0xd0 [ 18.387634][ T303] ? do_syscall_64+0xc1/0x1d0 [ 18.387780][ T303] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 18.387960][ T303] ? __lock_acquire+0xb9a/0x1680 [ 18.388110][ T303] ? find_held_lock+0x2c/0x110 [ 18.388260][ T303] ? __lock_release+0x103/0x460 [ 18.388404][ T303] ? __virt_addr_valid+0x22b/0x430 [ 18.388549][ T303] ? __pfx___lock_release+0x10/0x10 [ 18.388695][ T303] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 18.388850][ T303] __sys_sendmsg+0x109/0x1a0 [ 18.389010][ T303] ? __pfx___sys_sendmsg+0x10/0x10 [ 18.389153][ T303] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 18.389348][ T303] do_syscall_64+0xc1/0x1d0 [ 18.389495][ T303] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 18.389683][ T303] RIP: 0033:0x7fb0c14b99a7 [ 18.389836][ T303] 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 [ 18.390348][ T303] RSP: 002b:00007ffe3aff4298 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 18.390575][ T303] RAX: ffffffffffffffda RBX: 00007ffe3aff49c0 RCX: 00007fb0c14b99a7 [ 18.390793][ T303] RDX: 0000000000000000 RSI: 00007ffe3aff4300 RDI: 0000000000000005 [ 18.391011][ T303] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 18.391232][ T303] R10: 00007fb0c1377ef8 R11: 0000000000000246 R12: 0000000000000002 [ 18.391450][ T303] R13: 0000000067793dad R14: 0000000000498600 R15: 0000000000000000 [ 18.391671][ T303]