[ 15.583125][ T318] br1: port 1(veth1) entered blocking state [ 15.583639][ T318] br1: port 1(veth1) entered disabled state [ 15.584466][ T318] veth1: entered allmulticast mode [ 15.587986][ T318] veth1: entered promiscuous mode [ 15.686232][ T45] br1: port 1(veth1) entered blocking state [ 15.686755][ T45] br1: port 1(veth1) entered forwarding state [ 15.773723][ T320] br1: port 2(veth2) entered blocking state [ 15.774118][ T320] br1: port 2(veth2) entered disabled state [ 15.774434][ T320] veth2: entered allmulticast mode [ 15.776777][ T320] veth2: entered promiscuous mode [ 15.862685][ T45] br1: port 2(veth2) entered blocking state [ 15.863107][ T45] br1: port 2(veth2) entered forwarding state [ 16.149165][ T324] 8021q: 802.1Q VLAN Support v1.8 [ 16.894008][ T334] GACT probability NOT on [ 24.320653][ T372] Mirror/redirect action on [ 59.937161][ T552] [ 59.937341][ T552] ============================================ [ 59.937553][ T552] WARNING: possible recursive locking detected [ 59.937761][ T552] 6.13.0-rc5-virtme #1 Not tainted [ 59.937929][ T552] -------------------------------------------- [ 59.938130][ T552] ip/552 is trying to acquire lock: [ 59.938285][ T552] ffffffffb3fd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 59.938619][ T552] [ 59.938619][ T552] but task is already holding lock: [ 59.938859][ T552] ffffffffb3fd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 59.939198][ T552] [ 59.939198][ T552] other info that might help us debug this: [ 59.939430][ T552] Possible unsafe locking scenario: [ 59.939430][ T552] [ 59.939646][ T552] CPU0 [ 59.939755][ T552] ---- [ 59.939863][ T552] lock((netdev_chain).rwsem); [ 59.940007][ T552] lock((netdev_chain).rwsem); [ 59.940151][ T552] [ 59.940151][ T552] *** DEADLOCK *** [ 59.940151][ T552] [ 59.940367][ T552] May be due to missing lock nesting notation [ 59.940367][ T552] [ 59.940581][ T552] 2 locks held by ip/552: [ 59.940692][ T552] #0: ffffffffb3fe7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 59.940957][ T552] #1: ffffffffb3fd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 59.941250][ T552] [ 59.941250][ T552] stack backtrace: [ 59.941438][ T552] CPU: 2 UID: 0 PID: 552 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 59.941670][ T552] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 59.941862][ T552] Call Trace: [ 59.941978][ T552] [ 59.942055][ T552] dump_stack_lvl+0x82/0xd0 [ 59.942206][ T552] print_deadlock_bug+0x40a/0x650 [ 59.942353][ T552] validate_chain+0x5bf/0xae0 [ 59.942505][ T552] ? __pfx_validate_chain+0x10/0x10 [ 59.942655][ T552] ? hlock_class+0x4e/0x130 [ 59.942799][ T552] ? mark_lock+0x38/0x3e0 [ 59.942912][ T552] __lock_acquire+0xb9a/0x1680 [ 59.943062][ T552] lock_acquire.part.0+0xeb/0x330 [ 59.943208][ T552] ? blocking_notifier_call_chain+0x50/0x90 [ 59.943388][ T552] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 59.943578][ T552] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 59.943724][ T552] ? trace_lock_acquire+0x14c/0x1f0 [ 59.943870][ T552] ? lock_acquire+0x32/0xc0 [ 59.944015][ T552] ? blocking_notifier_call_chain+0x50/0x90 [ 59.944197][ T552] down_read+0x9f/0x340 [ 59.944308][ T552] ? blocking_notifier_call_chain+0x50/0x90 [ 59.944490][ T552] ? __pfx_down_read+0x10/0x10 [ 59.944644][ T552] ? __lock_release+0x103/0x460 [ 59.944788][ T552] ? netconsole_netdev_event+0x2c1/0x620 [ 59.944935][ T552] ? __pfx___lock_release+0x10/0x10 [ 59.945081][ T552] blocking_notifier_call_chain+0x50/0x90 [ 59.945226][ T552] __netdev_upper_dev_unlink+0xd9/0x220 [ 59.945370][ T552] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 59.945553][ T552] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 59.945705][ T552] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 59.945887][ T552] ? rtnl_is_locked+0x15/0x20 [ 59.946034][ T552] netdev_upper_dev_unlink+0x71/0xa0 [ 59.946180][ T552] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 59.946360][ T552] ? netconsole_netdev_event+0x2c1/0x620 [ 59.946505][ T552] ? mutex_is_locked+0x1c/0x60 [ 59.946662][ T552] ? rtnl_is_locked+0x15/0x20 [ 59.946826][ T552] ? netdev_master_upper_dev_get+0x13/0x120 [ 59.947009][ T552] vrf_device_event+0x78/0xe0 [vrf] [ 59.947157][ T552] notifier_call_chain+0xcd/0x150 [ 59.947305][ T552] blocking_notifier_call_chain+0x66/0x90 [ 59.947449][ T552] unregister_netdevice_many_notify+0xa7b/0x1580 [ 59.947632][ T552] ? __lock_release+0x103/0x460 [ 59.947779][ T552] ? __pfx___lock_release+0x10/0x10 [ 59.947932][ T552] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 59.948112][ T552] ? hlock_class+0x4e/0x130 [ 59.948261][ T552] ? mark_held_locks+0x9e/0xe0 [ 59.948405][ T552] ? __pfx_vlan_info_rcu_free+0x10/0x10 [ 59.948558][ T552] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 59.948739][ T552] rtnl_dellink+0x348/0xa40 [ 59.948888][ T552] ? __pfx_rtnl_dellink+0x10/0x10 [ 59.949047][ T552] ? find_held_lock+0x2c/0x110 [ 59.949195][ T552] ? __lock_release+0x103/0x460 [ 59.949345][ T552] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 59.949492][ T552] ? __pfx___lock_release+0x10/0x10 [ 59.949642][ T552] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 59.949793][ T552] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 59.949956][ T552] ? __pfx_rtnl_dellink+0x10/0x10 [ 59.950115][ T552] rtnetlink_rcv_msg+0x712/0xc10 [ 59.950276][ T552] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 59.950437][ T552] ? hlock_class+0x4e/0x130 [ 59.950598][ T552] ? mark_lock+0x38/0x3e0 [ 59.950726][ T552] ? __lock_acquire+0xb9a/0x1680 [ 59.950888][ T552] netlink_rcv_skb+0x130/0x360 [ 59.951050][ T552] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 59.951226][ T552] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 59.951391][ T552] ? netlink_deliver_tap+0x13e/0x340 [ 59.951556][ T552] ? netlink_deliver_tap+0xc3/0x340 [ 59.951718][ T552] netlink_unicast+0x44b/0x710 [ 59.951882][ T552] ? __pfx_netlink_unicast+0x10/0x10 [ 59.952041][ T552] ? find_held_lock+0x2c/0x110 [ 59.952203][ T552] netlink_sendmsg+0x723/0xbe0 [ 59.952369][ T552] ? __pfx_netlink_sendmsg+0x10/0x10 [ 59.952525][ T552] ____sys_sendmsg+0x7ac/0xa10 [ 59.952686][ T552] ? __pfx_____sys_sendmsg+0x10/0x10 [ 59.952837][ T552] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 59.953021][ T552] ___sys_sendmsg+0xee/0x170 [ 59.953167][ T552] ? __pfx____sys_sendmsg+0x10/0x10 [ 59.953312][ T552] ? kasan_save_stack+0x34/0x50 [ 59.953466][ T552] ? kasan_save_stack+0x24/0x50 [ 59.953621][ T552] ? __kasan_record_aux_stack+0x8e/0xa0 [ 59.953766][ T552] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 59.953945][ T552] ? __x64_sys_close+0x7c/0xd0 [ 59.954091][ T552] ? do_syscall_64+0xc1/0x1d0 [ 59.954235][ T552] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 59.954417][ T552] ? __lock_acquire+0xb9a/0x1680 [ 59.954573][ T552] ? find_held_lock+0x2c/0x110 [ 59.954721][ T552] ? __lock_release+0x103/0x460 [ 59.954865][ T552] ? __virt_addr_valid+0x22b/0x430 [ 59.955010][ T552] ? __pfx___lock_release+0x10/0x10 [ 59.955153][ T552] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 59.955300][ T552] __sys_sendmsg+0x109/0x1a0 [ 59.955445][ T552] ? __pfx___sys_sendmsg+0x10/0x10 [ 59.955601][ T552] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 59.955801][ T552] do_syscall_64+0xc1/0x1d0 [ 59.955945][ T552] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 59.956122][ T552] RIP: 0033:0x7fae5615a9a7 [ 59.956275][ T552] 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 [ 59.956795][ T552] RSP: 002b:00007ffcc0970ee8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 59.957029][ T552] RAX: ffffffffffffffda RBX: 00007ffcc0971610 RCX: 00007fae5615a9a7 [ 59.957255][ T552] RDX: 0000000000000000 RSI: 00007ffcc0970f50 RDI: 0000000000000005 [ 59.957475][ T552] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 59.957707][ T552] R10: 00007fae56018ef8 R11: 0000000000000246 R12: 0000000000000002 [ 59.957926][ T552] R13: 00000000677956fa R14: 0000000000498600 R15: 0000000000000000 [ 59.958146][ T552] [ 60.461862][ T559] br1: port 1(veth1) entered disabled state [ 60.524411][ T560] br1: port 2(veth2) entered disabled state [ 60.579585][ T561] veth2: left allmulticast mode [ 60.579790][ T561] veth2: left promiscuous mode [ 60.580056][ T561] br1: port 2(veth2) entered disabled state [ 60.581651][ T561] veth1: left allmulticast mode [ 60.581838][ T561] veth1: left promiscuous mode [ 60.582111][ T561] br1: port 1(veth1) entered disabled state