[ 78.483287][ T770] br1: port 1(veth1) entered blocking state [ 78.483881][ T770] br1: port 1(veth1) entered disabled state [ 78.484306][ T770] veth1: entered allmulticast mode [ 78.487592][ T770] veth1: entered promiscuous mode [ 78.572851][ T37] br1: port 1(veth1) entered blocking state [ 78.573560][ T37] br1: port 1(veth1) entered forwarding state [ 78.652340][ T772] br1: port 2(veth2) entered blocking state [ 78.652726][ T772] br1: port 2(veth2) entered disabled state [ 78.653019][ T772] veth2: entered allmulticast mode [ 78.654948][ T772] veth2: entered promiscuous mode [ 78.746735][ T40] br1: port 2(veth2) entered blocking state [ 78.747028][ T40] br1: port 2(veth2) entered forwarding state [ 79.032716][ T776] 8021q: 802.1Q VLAN Support v1.8 [ 79.804222][ T787] GACT probability NOT on [ 87.160361][ T825] Mirror/redirect action on [ 122.978332][ T1005] [ 122.978495][ T1005] ============================================ [ 122.978724][ T1005] WARNING: possible recursive locking detected [ 122.978944][ T1005] 6.13.0-rc5-virtme #1 Not tainted [ 122.979127][ T1005] -------------------------------------------- [ 122.979351][ T1005] ip/1005 is trying to acquire lock: [ 122.979530][ T1005] ffffffffabfd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 122.979896][ T1005] [ 122.979896][ T1005] but task is already holding lock: [ 122.980238][ T1005] ffffffffabfd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 122.980612][ T1005] [ 122.980612][ T1005] other info that might help us debug this: [ 122.980882][ T1005] Possible unsafe locking scenario: [ 122.980882][ T1005] [ 122.981170][ T1005] CPU0 [ 122.981317][ T1005] ---- [ 122.981446][ T1005] lock((netdev_chain).rwsem); [ 122.981618][ T1005] lock((netdev_chain).rwsem); [ 122.981792][ T1005] [ 122.981792][ T1005] *** DEADLOCK *** [ 122.981792][ T1005] [ 122.982044][ T1005] May be due to missing lock nesting notation [ 122.982044][ T1005] [ 122.982311][ T1005] 2 locks held by ip/1005: [ 122.982487][ T1005] #0: ffffffffabfe7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 122.982862][ T1005] #1: ffffffffabfd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 122.983258][ T1005] [ 122.983258][ T1005] stack backtrace: [ 122.983474][ T1005] CPU: 0 UID: 0 PID: 1005 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 122.983743][ T1005] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 122.984012][ T1005] Call Trace: [ 122.984186][ T1005] [ 122.984318][ T1005] dump_stack_lvl+0x82/0xd0 [ 122.984502][ T1005] print_deadlock_bug+0x40a/0x650 [ 122.984715][ T1005] validate_chain+0x5bf/0xae0 [ 122.984892][ T1005] ? __pfx_validate_chain+0x10/0x10 [ 122.985085][ T1005] ? hlock_class+0x4e/0x130 [ 122.985280][ T1005] ? mark_lock+0x38/0x3e0 [ 122.985413][ T1005] __lock_acquire+0xb9a/0x1680 [ 122.985588][ T1005] lock_acquire.part.0+0xeb/0x330 [ 122.985761][ T1005] ? blocking_notifier_call_chain+0x50/0x90 [ 122.985982][ T1005] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 122.986211][ T1005] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 122.986389][ T1005] ? trace_lock_acquire+0x14c/0x1f0 [ 122.986616][ T1005] ? lock_acquire+0x32/0xc0 [ 122.986790][ T1005] ? blocking_notifier_call_chain+0x50/0x90 [ 122.987005][ T1005] down_read+0x9f/0x340 [ 122.987153][ T1005] ? blocking_notifier_call_chain+0x50/0x90 [ 122.987366][ T1005] ? __pfx_down_read+0x10/0x10 [ 122.987537][ T1005] ? __lock_release+0x103/0x460 [ 122.987710][ T1005] ? netconsole_netdev_event+0x2c1/0x620 [ 122.987895][ T1005] ? __pfx___lock_release+0x10/0x10 [ 122.988104][ T1005] blocking_notifier_call_chain+0x50/0x90 [ 122.988301][ T1005] __netdev_upper_dev_unlink+0xd9/0x220 [ 122.988514][ T1005] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 122.988731][ T1005] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 122.988905][ T1005] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 122.989158][ T1005] ? rtnl_is_locked+0x15/0x20 [ 122.989375][ T1005] netdev_upper_dev_unlink+0x71/0xa0 [ 122.989589][ T1005] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 122.989843][ T1005] ? netconsole_netdev_event+0x2c1/0x620 [ 122.990031][ T1005] ? mutex_is_locked+0x1c/0x60 [ 122.990267][ T1005] ? rtnl_is_locked+0x15/0x20 [ 122.990453][ T1005] ? netdev_master_upper_dev_get+0x13/0x120 [ 122.990674][ T1005] vrf_device_event+0x78/0xe0 [vrf] [ 122.990850][ T1005] notifier_call_chain+0xcd/0x150 [ 122.991024][ T1005] blocking_notifier_call_chain+0x66/0x90 [ 122.991209][ T1005] unregister_netdevice_many_notify+0xa7b/0x1580 [ 122.991483][ T1005] ? __lock_release+0x103/0x460 [ 122.991658][ T1005] ? __pfx___lock_release+0x10/0x10 [ 122.991830][ T1005] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 122.992054][ T1005] ? hlock_class+0x4e/0x130 [ 122.992241][ T1005] ? mark_held_locks+0x9e/0xe0 [ 122.992414][ T1005] ? __pfx_vlan_info_rcu_free+0x10/0x10 [ 122.992587][ T1005] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 122.992858][ T1005] rtnl_dellink+0x348/0xa40 [ 122.993083][ T1005] ? __pfx_rtnl_dellink+0x10/0x10 [ 122.993297][ T1005] ? find_held_lock+0x2c/0x110 [ 122.993480][ T1005] ? __lock_release+0x103/0x460 [ 122.993654][ T1005] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 122.993881][ T1005] ? __pfx___lock_release+0x10/0x10 [ 122.994056][ T1005] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 122.994289][ T1005] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 122.994467][ T1005] ? __pfx_rtnl_dellink+0x10/0x10 [ 122.994645][ T1005] rtnetlink_rcv_msg+0x712/0xc10 [ 122.994827][ T1005] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 122.995003][ T1005] ? hlock_class+0x4e/0x130 [ 122.995190][ T1005] ? mark_lock+0x38/0x3e0 [ 122.995380][ T1005] ? __lock_acquire+0xb9a/0x1680 [ 122.995559][ T1005] netlink_rcv_skb+0x130/0x360 [ 122.995791][ T1005] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 122.995969][ T1005] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 122.996167][ T1005] ? netlink_deliver_tap+0x13e/0x340 [ 122.996348][ T1005] ? netlink_deliver_tap+0xc3/0x340 [ 122.996583][ T1005] netlink_unicast+0x44b/0x710 [ 122.996764][ T1005] ? __pfx_netlink_unicast+0x10/0x10 [ 122.996936][ T1005] ? find_held_lock+0x2c/0x110 [ 122.997141][ T1005] netlink_sendmsg+0x723/0xbe0 [ 122.997363][ T1005] ? __pfx_netlink_sendmsg+0x10/0x10 [ 122.997579][ T1005] ____sys_sendmsg+0x7ac/0xa10 [ 122.997756][ T1005] ? __pfx_____sys_sendmsg+0x10/0x10 [ 122.997927][ T1005] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 122.998201][ T1005] ___sys_sendmsg+0xee/0x170 [ 122.998399][ T1005] ? __pfx____sys_sendmsg+0x10/0x10 [ 122.998575][ T1005] ? kasan_save_stack+0x34/0x50 [ 122.998752][ T1005] ? kasan_save_stack+0x24/0x50 [ 122.998966][ T1005] ? __kasan_record_aux_stack+0x8e/0xa0 [ 122.999175][ T1005] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 122.999396][ T1005] ? __x64_sys_close+0x7c/0xd0 [ 122.999600][ T1005] ? do_syscall_64+0xc1/0x1d0 [ 122.999797][ T1005] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 123.000019][ T1005] ? __lock_acquire+0xb9a/0x1680 [ 123.000259][ T1005] ? find_held_lock+0x2c/0x110 [ 123.000463][ T1005] ? __lock_release+0x103/0x460 [ 123.000654][ T1005] ? __virt_addr_valid+0x22b/0x430 [ 123.000831][ T1005] ? __pfx___lock_release+0x10/0x10 [ 123.001009][ T1005] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 123.001194][ T1005] __sys_sendmsg+0x109/0x1a0 [ 123.001426][ T1005] ? __pfx___sys_sendmsg+0x10/0x10 [ 123.001605][ T1005] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 123.001839][ T1005] do_syscall_64+0xc1/0x1d0 [ 123.002020][ T1005] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 123.002313][ T1005] RIP: 0033:0x7ff9b3d0c9a7 [ 123.002504][ T1005] 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 [ 123.003218][ T1005] RSP: 002b:00007fffa2ec0508 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 123.003505][ T1005] RAX: ffffffffffffffda RBX: 00007fffa2ec0c30 RCX: 00007ff9b3d0c9a7 [ 123.003769][ T1005] RDX: 0000000000000000 RSI: 00007fffa2ec0570 RDI: 0000000000000005 [ 123.004071][ T1005] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 123.004357][ T1005] R10: 00007ff9b3bcaef8 R11: 0000000000000246 R12: 0000000000000002 [ 123.004628][ T1005] R13: 0000000067790076 R14: 0000000000498600 R15: 0000000000000000 [ 123.004951][ T1005] [ 123.499653][ T1012] br1: port 1(veth1) entered disabled state [ 123.567061][ T1013] br1: port 2(veth2) entered disabled state [ 123.629457][ T1014] veth2: left allmulticast mode [ 123.629676][ T1014] veth2: left promiscuous mode [ 123.629958][ T1014] br1: port 2(veth2) entered disabled state [ 123.631476][ T1014] veth1: left allmulticast mode [ 123.631682][ T1014] veth1: left promiscuous mode [ 123.631967][ T1014] br1: port 1(veth1) entered disabled state