[ 12.935574][ T288] 8021q: 802.1Q VLAN Support v1.8 [ 14.745426][ T310] br0: port 1(veth1) entered blocking state [ 14.745883][ T310] br0: port 1(veth1) entered disabled state [ 14.746526][ T310] veth1: entered allmulticast mode [ 14.748563][ T310] veth1: entered promiscuous mode [ 14.834124][ T312] br0: port 2(veth2) entered blocking state [ 14.834512][ T312] br0: port 2(veth2) entered disabled state [ 14.834806][ T312] veth2: entered allmulticast mode [ 14.836773][ T312] veth2: entered promiscuous mode [ 15.089386][ T40] br0: port 1(veth1) entered blocking state [ 15.089845][ T40] br0: port 1(veth1) entered forwarding state [ 15.176522][ T40] br0: port 2(veth2) entered blocking state [ 15.176846][ T40] br0: port 2(veth2) entered forwarding state [ 71.508966][ T582] Mirror/redirect action on [ 79.172661][ T618] br0: port 2(veth2) entered disabled state [ 79.252376][ T619] br0: port 1(veth1) entered disabled state [ 79.334034][ T620] veth2: left allmulticast mode [ 79.334843][ T620] veth2: left promiscuous mode [ 79.335244][ T620] br0: port 2(veth2) entered disabled state [ 79.337062][ T620] veth1: left allmulticast mode [ 79.337312][ T620] veth1: left promiscuous mode [ 79.337647][ T620] br0: port 1(veth1) entered disabled state [ 79.506866][ T621] [ 79.507041][ T621] ============================================ [ 79.507263][ T621] WARNING: possible recursive locking detected [ 79.507482][ T621] 6.13.0-rc5-virtme #1 Not tainted [ 79.507663][ T621] -------------------------------------------- [ 79.507886][ T621] ip/621 is trying to acquire lock: [ 79.508063][ T621] ffffffffaebd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 79.508429][ T621] [ 79.508429][ T621] but task is already holding lock: [ 79.508692][ T621] ffffffffaebd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 79.509044][ T621] [ 79.509044][ T621] other info that might help us debug this: [ 79.509305][ T621] Possible unsafe locking scenario: [ 79.509305][ T621] [ 79.509565][ T621] CPU0 [ 79.509697][ T621] ---- [ 79.509828][ T621] lock((netdev_chain).rwsem); [ 79.510005][ T621] lock((netdev_chain).rwsem); [ 79.510183][ T621] [ 79.510183][ T621] *** DEADLOCK *** [ 79.510183][ T621] [ 79.510440][ T621] May be due to missing lock nesting notation [ 79.510440][ T621] [ 79.510717][ T621] 2 locks held by ip/621: [ 79.510858][ T621] #0: ffffffffaebe7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 79.511174][ T621] #1: ffffffffaebd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 79.511528][ T621] [ 79.511528][ T621] stack backtrace: [ 79.511742][ T621] CPU: 3 UID: 0 PID: 621 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 79.512010][ T621] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 79.512227][ T621] Call Trace: [ 79.512360][ T621] [ 79.512448][ T621] dump_stack_lvl+0x82/0xd0 [ 79.512631][ T621] print_deadlock_bug+0x40a/0x650 [ 79.512810][ T621] validate_chain+0x5bf/0xae0 [ 79.512987][ T621] ? __pfx_validate_chain+0x10/0x10 [ 79.513164][ T621] ? hlock_class+0x4e/0x130 [ 79.513344][ T621] ? mark_lock+0x38/0x3e0 [ 79.513480][ T621] __lock_acquire+0xb9a/0x1680 [ 79.513658][ T621] lock_acquire.part.0+0xeb/0x330 [ 79.513837][ T621] ? blocking_notifier_call_chain+0x50/0x90 [ 79.514060][ T621] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 79.514283][ T621] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 79.514459][ T621] ? trace_lock_acquire+0x14c/0x1f0 [ 79.514638][ T621] ? lock_acquire+0x32/0xc0 [ 79.514825][ T621] ? blocking_notifier_call_chain+0x50/0x90 [ 79.515039][ T621] down_read+0x9f/0x340 [ 79.515177][ T621] ? blocking_notifier_call_chain+0x50/0x90 [ 79.515398][ T621] ? __pfx_down_read+0x10/0x10 [ 79.515571][ T621] ? __lock_release+0x103/0x460 [ 79.515746][ T621] ? netconsole_netdev_event+0x2c1/0x620 [ 79.515925][ T621] ? __pfx___lock_release+0x10/0x10 [ 79.516103][ T621] blocking_notifier_call_chain+0x50/0x90 [ 79.516278][ T621] __netdev_upper_dev_unlink+0xd9/0x220 [ 79.516455][ T621] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 79.516672][ T621] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 79.516851][ T621] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 79.517069][ T621] ? rtnl_is_locked+0x15/0x20 [ 79.517249][ T621] netdev_upper_dev_unlink+0x71/0xa0 [ 79.517422][ T621] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 79.517641][ T621] ? netconsole_netdev_event+0x2c1/0x620 [ 79.517816][ T621] ? mutex_is_locked+0x1c/0x60 [ 79.517992][ T621] ? rtnl_is_locked+0x15/0x20 [ 79.518165][ T621] ? netdev_master_upper_dev_get+0x13/0x120 [ 79.518385][ T621] vrf_device_event+0x78/0xe0 [vrf] [ 79.518564][ T621] notifier_call_chain+0xcd/0x150 [ 79.518737][ T621] blocking_notifier_call_chain+0x66/0x90 [ 79.518913][ T621] unregister_netdevice_many_notify+0xa7b/0x1580 [ 79.519125][ T621] ? __lock_release+0x103/0x460 [ 79.519299][ T621] ? __pfx___lock_release+0x10/0x10 [ 79.519472][ T621] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 79.519697][ T621] ? hlock_class+0x4e/0x130 [ 79.519879][ T621] ? mark_held_locks+0x9e/0xe0 [ 79.520053][ T621] ? __pfx_vlan_info_rcu_free+0x10/0x10 [ 79.520229][ T621] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 79.520450][ T621] rtnl_dellink+0x348/0xa40 [ 79.520661][ T621] ? __pfx_rtnl_dellink+0x10/0x10 [ 79.520838][ T621] ? find_held_lock+0x2c/0x110 [ 79.521004][ T621] ? __lock_release+0x103/0x460 [ 79.521167][ T621] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 79.521324][ T621] ? __pfx___lock_release+0x10/0x10 [ 79.521483][ T621] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 79.521645][ T621] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 79.521834][ T621] ? __pfx_rtnl_dellink+0x10/0x10 [ 79.522005][ T621] rtnetlink_rcv_msg+0x712/0xc10 [ 79.522177][ T621] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 79.522353][ T621] ? hlock_class+0x4e/0x130 [ 79.522533][ T621] ? mark_lock+0x38/0x3e0 [ 79.522665][ T621] ? __lock_acquire+0xb9a/0x1680 [ 79.522839][ T621] netlink_rcv_skb+0x130/0x360 [ 79.523013][ T621] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 79.523187][ T621] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 79.523366][ T621] ? netlink_deliver_tap+0x13e/0x340 [ 79.523546][ T621] ? netlink_deliver_tap+0xc3/0x340 [ 79.523721][ T621] netlink_unicast+0x44b/0x710 [ 79.523898][ T621] ? __pfx_netlink_unicast+0x10/0x10 [ 79.524072][ T621] ? find_held_lock+0x2c/0x110 [ 79.524246][ T621] netlink_sendmsg+0x723/0xbe0 [ 79.524421][ T621] ? __pfx_netlink_sendmsg+0x10/0x10 [ 79.524598][ T621] ____sys_sendmsg+0x7ac/0xa10 [ 79.524777][ T621] ? __pfx_____sys_sendmsg+0x10/0x10 [ 79.524952][ T621] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 79.525173][ T621] ___sys_sendmsg+0xee/0x170 [ 79.525347][ T621] ? __pfx____sys_sendmsg+0x10/0x10 [ 79.525521][ T621] ? kasan_save_stack+0x34/0x50 [ 79.525695][ T621] ? kasan_save_stack+0x24/0x50 [ 79.525870][ T621] ? __kasan_record_aux_stack+0x8e/0xa0 [ 79.526053][ T621] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 79.526271][ T621] ? __x64_sys_close+0x7c/0xd0 [ 79.526446][ T621] ? do_syscall_64+0xc1/0x1d0 [ 79.526622][ T621] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.526838][ T621] ? __lock_acquire+0xb9a/0x1680 [ 79.527012][ T621] ? find_held_lock+0x2c/0x110 [ 79.527185][ T621] ? __lock_release+0x103/0x460 [ 79.527362][ T621] ? __virt_addr_valid+0x22b/0x430 [ 79.527541][ T621] ? __pfx___lock_release+0x10/0x10 [ 79.527716][ T621] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 79.527894][ T621] __sys_sendmsg+0x109/0x1a0 [ 79.528075][ T621] ? __pfx___sys_sendmsg+0x10/0x10 [ 79.528249][ T621] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 79.528470][ T621] do_syscall_64+0xc1/0x1d0 [ 79.528649][ T621] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.528865][ T621] RIP: 0033:0x7f8b3ffe19a7 [ 79.529048][ T621] 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 [ 79.529667][ T621] RSP: 002b:00007ffd74ed2748 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 79.529937][ T621] RAX: ffffffffffffffda RBX: 00007ffd74ed2e70 RCX: 00007f8b3ffe19a7 [ 79.530200][ T621] RDX: 0000000000000000 RSI: 00007ffd74ed27b0 RDI: 0000000000000005 [ 79.530465][ T621] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 79.530740][ T621] R10: 00007f8b3fe9fef8 R11: 0000000000000246 R12: 0000000000000002 [ 79.531012][ T621] R13: 0000000067792e25 R14: 0000000000498600 R15: 0000000000000000 [ 79.531279][ T621] [ 79.548345][ T621] ip (621) used greatest stack depth: 23896 bytes left