[ 16.229695][ T325] gre: GRE over IPv4 demultiplexor driver
[ 16.278863][ T325] ip6_gre: GRE over IPv6 tunneling driver
[ 16.317855][ T324] ip (324) used greatest stack depth: 24176 bytes left
[ 18.012688][ T347] 8021q: 802.1Q VLAN Support v1.8
[ 21.308191][ T385] GACT probability NOT on
[ 177.986496][ T571] ip (571) used greatest stack depth: 23632 bytes left
[ 180.225785][ T596]
[ 180.225992][ T596] ============================================
[ 180.226254][ T596] WARNING: possible recursive locking detected
[ 180.226476][ T596] 6.13.0-rc5-virtme #1 Not tainted
[ 180.226661][ T596] --------------------------------------------
[ 180.226885][ T596] ip/596 is trying to acquire lock:
[ 180.227063][ T596] ffffffffbafd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90
[ 180.227452][ T596]
[ 180.227452][ T596] but task is already holding lock:
[ 180.227716][ T596] ffffffffbafd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90
[ 180.228099][ T596]
[ 180.228099][ T596] other info that might help us debug this:
[ 180.228368][ T596] Possible unsafe locking scenario:
[ 180.228368][ T596]
[ 180.228637][ T596] CPU0
[ 180.228775][ T596] ----
[ 180.228914][ T596] lock((netdev_chain).rwsem);
[ 180.229096][ T596] lock((netdev_chain).rwsem);
[ 180.229277][ T596]
[ 180.229277][ T596] *** DEADLOCK ***
[ 180.229277][ T596]
[ 180.229549][ T596] May be due to missing lock nesting notation
[ 180.229549][ T596]
[ 180.229821][ T596] 2 locks held by ip/596:
[ 180.229970][ T596] #0: ffffffffbafe7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40
[ 180.230318][ T596] #1: ffffffffbafd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90
[ 180.230697][ T596]
[ 180.230697][ T596] stack backtrace:
[ 180.230923][ T596] CPU: 0 UID: 0 PID: 596 Comm: ip Not tainted 6.13.0-rc5-virtme #1
[ 180.231211][ T596] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 180.231438][ T596] Call Trace:
[ 180.231580][ T596] <TASK>
[ 180.231689][ T596] dump_stack_lvl+0x82/0xd0
[ 180.231888][ T596] print_deadlock_bug+0x40a/0x650
[ 180.232076][ T596] validate_chain+0x5bf/0xae0
[ 180.232261][ T596] ? __pfx_validate_chain+0x10/0x10
[ 180.232446][ T596] ? hlock_class+0x4e/0x130
[ 180.232636][ T596] ? mark_lock+0x38/0x3e0
[ 180.232777][ T596] __lock_acquire+0xb9a/0x1680
[ 180.232963][ T596] lock_acquire.part.0+0xeb/0x330
[ 180.233147][ T596] ? blocking_notifier_call_chain+0x50/0x90
[ 180.233374][ T596] ? netconsole_process_cleanups_core+0x2e/0x3d0
[ 180.233608][ T596] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 180.233791][ T596] ? trace_lock_acquire+0x14c/0x1f0
[ 180.233981][ T596] ? lock_acquire+0x32/0xc0
[ 180.234161][ T596] ? blocking_notifier_call_chain+0x50/0x90
[ 180.234384][ T596] down_read+0x9f/0x340
[ 180.234527][ T596] ? blocking_notifier_call_chain+0x50/0x90
[ 180.234761][ T596] ? __pfx_down_read+0x10/0x10
[ 180.234941][ T596] ? __lock_release+0x103/0x460
[ 180.235118][ T596] ? netconsole_netdev_event+0x2c1/0x620
[ 180.235306][ T596] ? __pfx___lock_release+0x10/0x10
[ 180.235489][ T596] blocking_notifier_call_chain+0x50/0x90
[ 180.235672][ T596] __netdev_upper_dev_unlink+0xd9/0x220
[ 180.235858][ T596] ? __pfx___netdev_upper_dev_unlink+0x10/0x10
[ 180.236085][ T596] ? __mutex_unlock_slowpath+0x14a/0x3d0
[ 180.236267][ T596] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 180.236598][ T596] ? rtnl_is_locked+0x15/0x20
[ 180.236839][ T596] netdev_upper_dev_unlink+0x71/0xa0
[ 180.237068][ T596] ? __pfx_netdev_upper_dev_unlink+0x10/0x10
[ 180.237348][ T596] ? netconsole_netdev_event+0x2c1/0x620
[ 180.237570][ T596] ? mutex_is_locked+0x1c/0x60
[ 180.237793][ T596] ? rtnl_is_locked+0x15/0x20
[ 180.238014][ T596] ? netdev_master_upper_dev_get+0x13/0x120
[ 180.238286][ T596] vrf_device_event+0x78/0xe0 [vrf]
[ 180.238519][ T596] notifier_call_chain+0xcd/0x150
[ 180.238743][ T596] blocking_notifier_call_chain+0x66/0x90
[ 180.238971][ T596] unregister_netdevice_many_notify+0xa7b/0x1580
[ 180.239255][ T596] ? hlock_class+0x4e/0x130
[ 180.239478][ T596] ? mark_lock+0x38/0x3e0
[ 180.239650][ T596] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 180.239929][ T596] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 180.240268][ T596] ? kfree+0xf3/0x330
[ 180.240457][ T596] ? vlan_vid_del+0x310/0x5e0
[ 180.240720][ T596] ? vlan_vid_del+0x310/0x5e0
[ 180.240984][ T596] rtnl_dellink+0x348/0xa40
[ 180.241234][ T596] ? __pfx_rtnl_dellink+0x10/0x10
[ 180.241504][ T596] ? find_held_lock+0x2c/0x110
[ 180.241765][ T596] ? __lock_release+0x103/0x460
[ 180.242011][ T596] ? rtnetlink_rcv_msg+0x6ef/0xc10
[ 180.242251][ T596] ? __pfx___lock_release+0x10/0x10
[ 180.242485][ T596] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 180.242735][ T596] ? rtnetlink_rcv_msg+0x6ef/0xc10
[ 180.242977][ T596] ? __pfx_rtnl_dellink+0x10/0x10
[ 180.243220][ T596] rtnetlink_rcv_msg+0x712/0xc10
[ 180.243463][ T596] ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[ 180.243709][ T596] ? hlock_class+0x4e/0x130
[ 180.243950][ T596] ? mark_lock+0x38/0x3e0
[ 180.244126][ T596] ? __lock_acquire+0xb9a/0x1680
[ 180.244366][ T596] netlink_rcv_skb+0x130/0x360
[ 180.244602][ T596] ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[ 180.244843][ T596] ? __pfx_netlink_rcv_skb+0x10/0x10
[ 180.245102][ T596] ? netlink_deliver_tap+0x13e/0x340
[ 180.245344][ T596] ? netlink_deliver_tap+0xc3/0x340
[ 180.245582][ T596] netlink_unicast+0x44b/0x710
[ 180.245816][ T596] ? __pfx_netlink_unicast+0x10/0x10
[ 180.246050][ T596] ? find_held_lock+0x2c/0x110
[ 180.246285][ T596] netlink_sendmsg+0x723/0xbe0
[ 180.246509][ T596] ? __pfx_netlink_sendmsg+0x10/0x10
[ 180.246747][ T596] ____sys_sendmsg+0x7ac/0xa10
[ 180.246988][ T596] ? __pfx_____sys_sendmsg+0x10/0x10
[ 180.247230][ T596] ? __pfx_copy_msghdr_from_user+0x10/0x10
[ 180.247524][ T596] ___sys_sendmsg+0xee/0x170
[ 180.247751][ T596] ? __pfx____sys_sendmsg+0x10/0x10
[ 180.247985][ T596] ? kasan_save_stack+0x34/0x50
[ 180.248210][ T596] ? kasan_save_stack+0x24/0x50
[ 180.248436][ T596] ? __kasan_record_aux_stack+0x8e/0xa0
[ 180.248668][ T596] ? __call_rcu_common.constprop.0+0xa1/0x4b0
[ 180.248991][ T596] ? __x64_sys_close+0x7c/0xd0
[ 180.249230][ T596] ? do_syscall_64+0xc1/0x1d0
[ 180.249462][ T596] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 180.249742][ T596] ? __lock_acquire+0xb9a/0x1680
[ 180.249974][ T596] ? find_held_lock+0x2c/0x110
[ 180.250211][ T596] ? __lock_release+0x103/0x460
[ 180.250440][ T596] ? __virt_addr_valid+0x22b/0x430
[ 180.250672][ T596] ? __pfx___lock_release+0x10/0x10
[ 180.250906][ T596] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 180.251135][ T596] __sys_sendmsg+0x109/0x1a0
[ 180.251362][ T596] ? __pfx___sys_sendmsg+0x10/0x10
[ 180.251584][ T596] ? __pfx_slab_free_after_rcu_debug+0x10/0x10
[ 180.251886][ T596] do_syscall_64+0xc1/0x1d0
[ 180.252117][ T596] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 180.252415][ T596] RIP: 0033:0x7f0ec73369a7
[ 180.252661][ T596] 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
[ 180.253528][ T596] RSP: 002b:00007ffcf1302928 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 180.253909][ T596] RAX: ffffffffffffffda RBX: 00007ffcf1303050 RCX: 00007f0ec73369a7
[ 180.254271][ T596] RDX: 0000000000000000 RSI: 00007ffcf1302990 RDI: 0000000000000005
[ 180.254634][ T596] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 180.254997][ T596] R10: 00007f0ec71f4ef8 R11: 0000000000000246 R12: 0000000000000002
[ 180.255357][ T596] R13: 000000006779294a R14: 0000000000498600 R15: 0000000000000000
[ 180.255729][ T596] </TASK>