[ 13.453335][ T289] 8021q: 802.1Q VLAN Support v1.8 [ 14.774990][ T306] br0: port 1(veth1) entered blocking state [ 14.775660][ T306] br0: port 1(veth1) entered disabled state [ 14.776092][ T306] veth1: entered allmulticast mode [ 14.778455][ T306] veth1: entered promiscuous mode [ 14.873765][ T308] br0: port 2(veth2) entered blocking state [ 14.874124][ T308] br0: port 2(veth2) entered disabled state [ 14.874627][ T308] veth2: entered allmulticast mode [ 14.876526][ T308] veth2: entered promiscuous mode [ 15.047061][ T39] br0: port 1(veth1) entered blocking state [ 15.047434][ T39] br0: port 1(veth1) entered forwarding state [ 15.129085][ T39] br0: port 2(veth2) entered blocking state [ 15.129437][ T39] br0: port 2(veth2) entered forwarding state [ 43.470745][ T378] GACT probability NOT on [ 74.757640][ T593] [ 74.757772][ T593] ============================================ [ 74.757974][ T593] WARNING: possible recursive locking detected [ 74.758204][ T593] 6.13.0-rc5-virtme #1 Not tainted [ 74.758372][ T593] -------------------------------------------- [ 74.758569][ T593] ip/593 is trying to acquire lock: [ 74.758728][ T593] ffffffff989d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 74.759068][ T593] [ 74.759068][ T593] but task is already holding lock: [ 74.759295][ T593] ffffffff989d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 74.759605][ T593] [ 74.759605][ T593] other info that might help us debug this: [ 74.759833][ T593] Possible unsafe locking scenario: [ 74.759833][ T593] [ 74.760058][ T593] CPU0 [ 74.760178][ T593] ---- [ 74.760299][ T593] lock((netdev_chain).rwsem); [ 74.760458][ T593] lock((netdev_chain).rwsem); [ 74.760622][ T593] [ 74.760622][ T593] *** DEADLOCK *** [ 74.760622][ T593] [ 74.760857][ T593] May be due to missing lock nesting notation [ 74.760857][ T593] [ 74.761088][ T593] 2 locks held by ip/593: [ 74.761209][ T593] #0: ffffffff989e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 74.761497][ T593] #1: ffffffff989d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 74.761825][ T593] [ 74.761825][ T593] stack backtrace: [ 74.762019][ T593] CPU: 3 UID: 0 PID: 593 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 74.762285][ T593] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 74.762500][ T593] Call Trace: [ 74.762622][ T593] [ 74.762703][ T593] dump_stack_lvl+0x82/0xd0 [ 74.762873][ T593] print_deadlock_bug+0x40a/0x650 [ 74.763032][ T593] validate_chain+0x5bf/0xae0 [ 74.763190][ T593] ? __pfx_validate_chain+0x10/0x10 [ 74.763353][ T593] ? hlock_class+0x4e/0x130 [ 74.763509][ T593] ? mark_lock+0x38/0x3e0 [ 74.763631][ T593] __lock_acquire+0xb9a/0x1680 [ 74.763790][ T593] lock_acquire.part.0+0xeb/0x330 [ 74.763945][ T593] ? blocking_notifier_call_chain+0x50/0x90 [ 74.764144][ T593] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 74.764301][ T593] ? trace_lock_acquire+0x14c/0x1f0 [ 74.764459][ T593] ? lock_acquire+0x32/0xc0 [ 74.764613][ T593] ? blocking_notifier_call_chain+0x50/0x90 [ 74.764814][ T593] down_read+0x9f/0x340 [ 74.764934][ T593] ? blocking_notifier_call_chain+0x50/0x90 [ 74.765129][ T593] ? __pfx_down_read+0x10/0x10 [ 74.765286][ T593] blocking_notifier_call_chain+0x50/0x90 [ 74.765445][ T593] __dev_close_many+0xdf/0x2d0 [ 74.765605][ T593] ? __pfx___dev_close_many+0x10/0x10 [ 74.765764][ T593] dev_close_many+0x202/0x650 [ 74.765924][ T593] ? __pfx_dev_close_many+0x10/0x10 [ 74.766081][ T593] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 74.766308][ T593] vlan_device_event+0x143b/0x2130 [8021q] [ 74.766508][ T593] ? __pfx_vlan_device_event+0x10/0x10 [8021q] [ 74.766707][ T593] ? packet_notifier+0x3b0/0x810 [ 74.766870][ T593] notifier_call_chain+0xcd/0x150 [ 74.767027][ T593] blocking_notifier_call_chain+0x66/0x90 [ 74.767191][ T593] __dev_notify_flags+0x170/0x250 [ 74.767349][ T593] ? __pfx___dev_notify_flags+0x10/0x10 [ 74.767506][ T593] ? __dev_change_flags+0x24f/0x6c0 [ 74.767664][ T593] ? __pfx___dev_change_flags+0x10/0x10 [ 74.767822][ T593] ? rcu_read_lock_any_held+0x43/0xb0 [ 74.767982][ T593] ? validate_chain+0x1fe/0xae0 [ 74.768137][ T593] dev_change_flags+0xec/0x160 [ 74.768298][ T593] cycle_netdev+0x94/0xf0 [vrf] [ 74.768457][ T593] vrf_del_slave+0x40/0x60 [vrf] [ 74.768615][ T593] do_set_master+0xb5/0x1c0 [ 74.768771][ T593] do_setlink.constprop.0+0x80e/0x2300 [ 74.768928][ T593] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 74.769119][ T593] ? lock_acquire.part.0+0xeb/0x330 [ 74.769275][ T593] ? rtnl_newlink+0x653/0xa70 [ 74.769435][ T593] ? rtnl_newlink+0xb9/0xa70 [ 74.769588][ T593] ? rtnetlink_rcv_msg+0x712/0xc10 [ 74.769744][ T593] ? __mutex_trylock_common+0xfa/0x260 [ 74.769905][ T593] ? __pfx___mutex_trylock_common+0x10/0x10 [ 74.770105][ T593] ? lock_acquire+0x32/0xc0 [ 74.770290][ T593] ? trace_contention_end+0xef/0x150 [ 74.770448][ T593] ? __mutex_lock+0x190/0xbc0 [ 74.770611][ T593] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 74.770768][ T593] ? rtnl_newlink+0x653/0xa70 [ 74.770923][ T593] ? __pfx___mutex_lock+0x10/0x10 [ 74.771081][ T593] ? __rtnl_newlink+0x3f2/0xa80 [ 74.771239][ T593] rtnl_newlink+0x69c/0xa70 [ 74.771398][ T593] ? __pfx_rtnl_newlink+0x10/0x10 [ 74.771557][ T593] ? find_held_lock+0x2c/0x110 [ 74.771715][ T593] ? __pfx___lock_release+0x10/0x10 [ 74.771878][ T593] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 74.772037][ T593] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 74.772199][ T593] ? __pfx_rtnl_newlink+0x10/0x10 [ 74.772357][ T593] rtnetlink_rcv_msg+0x712/0xc10 [ 74.772521][ T593] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 74.772676][ T593] ? hlock_class+0x4e/0x130 [ 74.772832][ T593] ? mark_lock+0x38/0x3e0 [ 74.773054][ T593] ? __lock_acquire+0xb9a/0x1680 [ 74.773248][ T593] netlink_rcv_skb+0x130/0x360 [ 74.773408][ T593] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 74.773564][ T593] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 74.773727][ T593] ? netlink_deliver_tap+0x13e/0x340 [ 74.773886][ T593] ? netlink_deliver_tap+0xc3/0x340 [ 74.774043][ T593] netlink_unicast+0x44b/0x710 [ 74.774236][ T593] ? __pfx_netlink_unicast+0x10/0x10 [ 74.774400][ T593] ? find_held_lock+0x2c/0x110 [ 74.774562][ T593] netlink_sendmsg+0x723/0xbe0 [ 74.774720][ T593] ? __pfx_netlink_sendmsg+0x10/0x10 [ 74.774879][ T593] ____sys_sendmsg+0x7ac/0xa10 [ 74.775039][ T593] ? __pfx_____sys_sendmsg+0x10/0x10 [ 74.775198][ T593] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 74.775399][ T593] ___sys_sendmsg+0xee/0x170 [ 74.775558][ T593] ? __pfx____sys_sendmsg+0x10/0x10 [ 74.775716][ T593] ? kasan_save_stack+0x34/0x50 [ 74.775875][ T593] ? kasan_save_stack+0x24/0x50 [ 74.776034][ T593] ? __kasan_record_aux_stack+0x8e/0xa0 [ 74.776195][ T593] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 74.776398][ T593] ? __x64_sys_close+0x7c/0xd0 [ 74.776556][ T593] ? do_syscall_64+0xc1/0x1d0 [ 74.776722][ T593] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.776926][ T593] ? __lock_acquire+0xb9a/0x1680 [ 74.777087][ T593] ? find_held_lock+0x2c/0x110 [ 74.777246][ T593] ? __lock_release+0x103/0x460 [ 74.777404][ T593] ? __virt_addr_valid+0x22b/0x430 [ 74.777566][ T593] ? __pfx___lock_release+0x10/0x10 [ 74.777724][ T593] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 74.777885][ T593] __sys_sendmsg+0x109/0x1a0 [ 74.778042][ T593] ? __pfx___sys_sendmsg+0x10/0x10 [ 74.778224][ T593] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 74.778427][ T593] do_syscall_64+0xc1/0x1d0 [ 74.778585][ T593] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.778778][ T593] RIP: 0033:0x7f13f63479a7 [ 74.778948][ T593] 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 [ 74.779516][ T593] RSP: 002b:00007ffe12d0d4e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 74.779758][ T593] RAX: ffffffffffffffda RBX: 00007ffe12d0dc10 RCX: 00007f13f63479a7 [ 74.779995][ T593] RDX: 0000000000000000 RSI: 00007ffe12d0d550 RDI: 0000000000000005 [ 74.780233][ T593] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 74.780470][ T593] R10: 0000000017f5d910 R11: 0000000000000246 R12: 0000000000000004 [ 74.780705][ T593] R13: 000000006778ffb1 R14: 0000000000498600 R15: 0000000000000000 [ 74.780949][ T593] [ 74.785870][ T593] br1: port 1(veth0) entered blocking state [ 74.786088][ T593] br1: port 1(veth0) entered disabled state [ 74.786333][ T593] veth0: entered allmulticast mode [ 74.787869][ T593] veth0: entered promiscuous mode [ 74.796484][ T593] ip (593) used greatest stack depth: 23368 bytes left [ 74.851905][ T595] br1: port 1(veth0) entered blocking state [ 74.852212][ T595] br1: port 1(veth0) entered forwarding state [ 77.095113][ T600] veth0: left allmulticast mode [ 77.095335][ T600] veth0: left promiscuous mode [ 77.095629][ T600] br1: port 1(veth0) entered disabled state [ 88.241980][ T717] br0: vlan filtering disabled, automatically disabling multicast vlan snooping [ 88.701358][ T729] br0: port 2(veth2) entered disabled state [ 88.767305][ T730] br0: port 1(veth1) entered disabled state [ 88.828976][ T732] veth2: left allmulticast mode [ 88.829175][ T732] veth2: left promiscuous mode [ 88.829459][ T732] br0: port 2(veth2) entered disabled state [ 88.830709][ T732] veth1: left allmulticast mode [ 88.830872][ T732] veth1: left promiscuous mode [ 88.831126][ T732] br0: port 1(veth1) entered disabled state