[ 377.588826][ T4079] 8021q: 802.1Q VLAN Support v1.8 [ 380.366787][ T4113] br0: port 1(veth1) entered blocking state [ 380.367608][ T4113] br0: port 1(veth1) entered disabled state [ 380.368035][ T4113] veth1: entered allmulticast mode [ 380.370226][ T4113] veth1: entered promiscuous mode [ 380.473129][ T39] br0: port 1(veth1) entered blocking state [ 380.473665][ T39] br0: port 1(veth1) entered forwarding state [ 380.660550][ T4116] br0: port 2(veth2) entered blocking state [ 380.660878][ T4116] br0: port 2(veth2) entered disabled state [ 380.661204][ T4116] veth2: entered allmulticast mode [ 380.663202][ T4116] veth2: entered promiscuous mode [ 380.758058][ T67] br0: port 2(veth2) entered blocking state [ 380.758468][ T67] br0: port 2(veth2) entered forwarding state [ 458.161144][ T5900] br0: port 2(veth2) entered disabled state [ 458.258451][ T5901] veth2: left allmulticast mode [ 458.258743][ T5901] veth2: left promiscuous mode [ 458.259097][ T5901] br0: port 2(veth2) entered disabled state [ 458.367879][ T5902] br0: port 1(veth1) entered disabled state [ 458.468971][ T5903] veth1: left allmulticast mode [ 458.469242][ T5903] veth1: left promiscuous mode [ 458.469566][ T5903] br0: port 1(veth1) entered disabled state [ 459.339697][ T5921] br0: port 1(veth1) entered blocking state [ 459.340056][ T5921] br0: port 1(veth1) entered disabled state [ 459.341301][ T5921] veth1: entered allmulticast mode [ 459.343296][ T5921] veth1: entered promiscuous mode [ 459.447357][ T244] br0: port 1(veth1) entered blocking state [ 459.447813][ T244] br0: port 1(veth1) entered forwarding state [ 459.853080][ T5927] br0: port 2(veth2) entered blocking state [ 459.853521][ T5927] br0: port 2(veth2) entered disabled state [ 459.853925][ T5927] veth2: entered allmulticast mode [ 459.857229][ T5927] veth2: entered promiscuous mode [ 459.964599][ T39] br0: port 2(veth2) entered blocking state [ 459.964927][ T39] br0: port 2(veth2) entered forwarding state [ 537.689618][ T7719] br0: port 2(veth2) entered disabled state [ 537.768471][ T7720] veth2: left allmulticast mode [ 537.768771][ T7720] veth2: left promiscuous mode [ 537.769140][ T7720] br0: port 2(veth2) entered disabled state [ 537.879066][ T7721] br0: port 1(veth1) entered disabled state [ 537.990980][ T7722] veth1: left allmulticast mode [ 537.991265][ T7722] veth1: left promiscuous mode [ 537.991577][ T7722] br0: port 1(veth1) entered disabled state [ 538.850855][ T7740] br0: port 1(veth1) entered blocking state [ 538.851226][ T7740] br0: port 1(veth1) entered disabled state [ 538.851632][ T7740] veth1: entered allmulticast mode [ 538.853874][ T7740] veth1: entered promiscuous mode [ 538.956244][ T45] br0: port 1(veth1) entered blocking state [ 538.956608][ T45] br0: port 1(veth1) entered forwarding state [ 539.344356][ T7745] br0: port 2(veth2) entered blocking state [ 539.344828][ T7745] br0: port 2(veth2) entered disabled state [ 539.345331][ T7745] veth2: entered allmulticast mode [ 539.349458][ T7745] veth2: entered promiscuous mode [ 539.470393][ T39] br0: port 2(veth2) entered blocking state [ 539.470786][ T39] br0: port 2(veth2) entered forwarding state [ 699.802495][T11594] br0: port 2(veth2) entered disabled state [ 699.888629][T11595] veth2: left allmulticast mode [ 699.888875][T11595] veth2: left promiscuous mode [ 699.889268][T11595] br0: port 2(veth2) entered disabled state [ 700.022256][T11596] br0: port 1(veth1) entered disabled state [ 700.111639][T11597] veth1: left allmulticast mode [ 700.111941][T11597] veth1: left promiscuous mode [ 700.112434][T11597] br0: port 1(veth1) entered disabled state [ 701.368662][T11619] [ 701.368827][T11619] ============================================ [ 701.369058][T11619] WARNING: possible recursive locking detected [ 701.369285][T11619] 6.13.0-rc5-virtme #1 Not tainted [ 701.369441][T11619] -------------------------------------------- [ 701.369687][T11619] ip/11619 is trying to acquire lock: [ 701.369854][T11619] ffffffff98bd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 701.370182][T11619] [ 701.370182][T11619] but task is already holding lock: [ 701.370418][T11619] ffffffff98bd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 701.370742][T11619] [ 701.370742][T11619] other info that might help us debug this: [ 701.370954][T11619] Possible unsafe locking scenario: [ 701.370954][T11619] [ 701.371184][T11619] CPU0 [ 701.371303][T11619] ---- [ 701.371413][T11619] lock((netdev_chain).rwsem); [ 701.371560][T11619] lock((netdev_chain).rwsem); [ 701.371709][T11619] [ 701.371709][T11619] *** DEADLOCK *** [ 701.371709][T11619] [ 701.371925][T11619] May be due to missing lock nesting notation [ 701.371925][T11619] [ 701.372141][T11619] 2 locks held by ip/11619: [ 701.372307][T11619] #0: ffffffff98be7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 701.372585][T11619] #1: ffffffff98bd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 701.372884][T11619] [ 701.372884][T11619] stack backtrace: [ 701.373067][T11619] CPU: 3 UID: 0 PID: 11619 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 701.373287][T11619] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 701.373479][T11619] Call Trace: [ 701.373593][T11619] [ 701.373672][T11619] dump_stack_lvl+0x82/0xd0 [ 701.373831][T11619] print_deadlock_bug+0x40a/0x650 [ 701.373981][T11619] validate_chain+0x5bf/0xae0 [ 701.374132][T11619] ? __pfx_validate_chain+0x10/0x10 [ 701.374283][T11619] ? hlock_class+0x4e/0x130 [ 701.374430][T11619] ? mark_lock+0x38/0x3e0 [ 701.374550][T11619] __lock_acquire+0xb9a/0x1680 [ 701.374698][T11619] lock_acquire.part.0+0xeb/0x330 [ 701.374846][T11619] ? blocking_notifier_call_chain+0x50/0x90 [ 701.375031][T11619] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 701.375217][T11619] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 701.375389][T11619] ? trace_lock_acquire+0x14c/0x1f0 [ 701.375541][T11619] ? lock_acquire+0x32/0xc0 [ 701.375697][T11619] ? blocking_notifier_call_chain+0x50/0x90 [ 701.375879][T11619] down_read+0x9f/0x340 [ 701.375993][T11619] ? blocking_notifier_call_chain+0x50/0x90 [ 701.376194][T11619] ? __pfx_down_read+0x10/0x10 [ 701.376343][T11619] ? __lock_release+0x103/0x460 [ 701.376490][T11619] ? netconsole_netdev_event+0x2c1/0x620 [ 701.376638][T11619] ? __pfx___lock_release+0x10/0x10 [ 701.376795][T11619] blocking_notifier_call_chain+0x50/0x90 [ 701.376942][T11619] __netdev_upper_dev_unlink+0xd9/0x220 [ 701.377092][T11619] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 701.377276][T11619] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 701.377426][T11619] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 701.377608][T11619] ? rtnl_is_locked+0x15/0x20 [ 701.377761][T11619] netdev_upper_dev_unlink+0x71/0xa0 [ 701.377915][T11619] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 701.378099][T11619] ? netconsole_netdev_event+0x2c1/0x620 [ 701.378246][T11619] ? mutex_is_locked+0x1c/0x60 [ 701.378394][T11619] ? rtnl_is_locked+0x15/0x20 [ 701.378542][T11619] ? netdev_master_upper_dev_get+0x13/0x120 [ 701.378732][T11619] vrf_device_event+0x78/0xe0 [vrf] [ 701.378893][T11619] notifier_call_chain+0xcd/0x150 [ 701.379044][T11619] blocking_notifier_call_chain+0x66/0x90 [ 701.379193][T11619] unregister_netdevice_many_notify+0xa7b/0x1580 [ 701.379379][T11619] ? hlock_class+0x4e/0x130 [ 701.379526][T11619] ? mark_lock+0x38/0x3e0 [ 701.379639][T11619] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 701.379823][T11619] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 701.380013][T11619] ? kfree+0xf3/0x330 [ 701.380127][T11619] ? vlan_vid_del+0x310/0x5e0 [ 701.380282][T11619] ? vlan_vid_del+0x310/0x5e0 [ 701.380436][T11619] rtnl_dellink+0x348/0xa40 [ 701.380595][T11619] ? __pfx_rtnl_dellink+0x10/0x10 [ 701.380758][T11619] ? find_held_lock+0x2c/0x110 [ 701.380908][T11619] ? __lock_release+0x103/0x460 [ 701.381056][T11619] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 701.381213][T11619] ? __pfx___lock_release+0x10/0x10 [ 701.381360][T11619] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 701.381510][T11619] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 701.381658][T11619] ? __pfx_rtnl_dellink+0x10/0x10 [ 701.381809][T11619] rtnetlink_rcv_msg+0x712/0xc10 [ 701.381959][T11619] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 701.382108][T11619] ? hlock_class+0x4e/0x130 [ 701.382264][T11619] ? mark_lock+0x38/0x3e0 [ 701.382378][T11619] ? __lock_acquire+0xb9a/0x1680 [ 701.382528][T11619] netlink_rcv_skb+0x130/0x360 [ 701.382680][T11619] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 701.382828][T11619] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 701.382978][T11619] ? netlink_deliver_tap+0x13e/0x340 [ 701.383126][T11619] ? netlink_deliver_tap+0xc3/0x340 [ 701.383283][T11619] netlink_unicast+0x44b/0x710 [ 701.383431][T11619] ? __pfx_netlink_unicast+0x10/0x10 [ 701.383577][T11619] ? find_held_lock+0x2c/0x110 [ 701.383727][T11619] netlink_sendmsg+0x723/0xbe0 [ 701.383878][T11619] ? __pfx_netlink_sendmsg+0x10/0x10 [ 701.384030][T11619] ____sys_sendmsg+0x7ac/0xa10 [ 701.384179][T11619] ? __pfx_____sys_sendmsg+0x10/0x10 [ 701.384333][T11619] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 701.384522][T11619] ___sys_sendmsg+0xee/0x170 [ 701.384670][T11619] ? __pfx____sys_sendmsg+0x10/0x10 [ 701.384817][T11619] ? kasan_save_stack+0x34/0x50 [ 701.384964][T11619] ? kasan_save_stack+0x24/0x50 [ 701.385111][T11619] ? __kasan_record_aux_stack+0x8e/0xa0 [ 701.385263][T11619] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 701.385453][T11619] ? __x64_sys_close+0x7c/0xd0 [ 701.385602][T11619] ? do_syscall_64+0xc1/0x1d0 [ 701.385755][T11619] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 701.385940][T11619] ? __lock_acquire+0xb9a/0x1680 [ 701.386090][T11619] ? find_held_lock+0x2c/0x110 [ 701.386252][T11619] ? __lock_release+0x103/0x460 [ 701.386400][T11619] ? __virt_addr_valid+0x22b/0x430 [ 701.386551][T11619] ? __pfx___lock_release+0x10/0x10 [ 701.386704][T11619] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 701.386855][T11619] __sys_sendmsg+0x109/0x1a0 [ 701.387003][T11619] ? __pfx___sys_sendmsg+0x10/0x10 [ 701.387150][T11619] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 701.387338][T11619] do_syscall_64+0xc1/0x1d0 [ 701.387487][T11619] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 701.387670][T11619] RIP: 0033:0x7fc163aa49a7 [ 701.387837][T11619] 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 [ 701.388356][T11619] RSP: 002b:00007fff63dd35a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 701.388580][T11619] RAX: ffffffffffffffda RBX: 00007fff63dd3cd0 RCX: 00007fc163aa49a7 [ 701.388811][T11619] RDX: 0000000000000000 RSI: 00007fff63dd3610 RDI: 0000000000000005 [ 701.389033][T11619] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 701.389255][T11619] R10: 00007fc163962ef8 R11: 0000000000000246 R12: 0000000000000002 [ 701.389476][T11619] R13: 000000006778fdf9 R14: 0000000000498600 R15: 0000000000000000 [ 701.389706][T11619]