[ 13.668402][ T300] 8021q: 802.1Q VLAN Support v1.8 [ 17.157955][ T346] br1: port 1(vx100) entered blocking state [ 17.159428][ T346] br1: port 1(vx100) entered disabled state [ 17.160148][ T346] vx100: entered allmulticast mode [ 17.163500][ T346] vx100: entered promiscuous mode [ 17.165607][ T346] br1: port 1(vx100) entered blocking state [ 17.166008][ T346] br1: port 1(vx100) entered forwarding state [ 17.357266][ T348] br1: port 2(veth1) entered blocking state [ 17.357580][ T348] br1: port 2(veth1) entered disabled state [ 17.357948][ T348] veth1: entered allmulticast mode [ 17.360595][ T348] veth1: entered promiscuous mode [ 17.434189][ T39] br1: port 2(veth1) entered blocking state [ 17.434638][ T39] br1: port 2(veth1) entered forwarding state [ 17.598331][ T351] br1: port 3(veth2) entered blocking state [ 17.598621][ T351] br1: port 3(veth2) entered disabled state [ 17.598893][ T351] veth2: entered allmulticast mode [ 17.601669][ T351] veth2: entered promiscuous mode [ 17.683672][ T149] br1: port 3(veth2) entered blocking state [ 17.683981][ T149] br1: port 3(veth2) entered forwarding state [ 20.847914][ T398] br2: port 1(w1) entered blocking state [ 20.848160][ T398] br2: port 1(w1) entered disabled state [ 20.848642][ T398] w1: entered allmulticast mode [ 20.850552][ T398] w1: entered promiscuous mode [ 21.421998][ T405] br2: port 2(vx100) entered blocking state [ 21.422335][ T405] br2: port 2(vx100) entered disabled state [ 21.422632][ T405] vx100: entered allmulticast mode [ 21.424550][ T405] vx100: entered promiscuous mode [ 21.425088][ T405] br2: port 2(vx100) entered blocking state [ 21.425356][ T405] br2: port 2(vx100) entered forwarding state [ 22.098902][ T149] br2: port 1(w1) entered blocking state [ 22.099337][ T149] br2: port 1(w1) entered forwarding state [ 24.386722][ T445] br2: port 1(w1) entered blocking state [ 24.386963][ T445] br2: port 1(w1) entered disabled state [ 24.387414][ T445] w1: entered allmulticast mode [ 24.389328][ T445] w1: entered promiscuous mode [ 24.939089][ T452] br2: port 2(vx100) entered blocking state [ 24.939639][ T452] br2: port 2(vx100) entered disabled state [ 24.939917][ T452] vx100: entered allmulticast mode [ 24.941802][ T452] vx100: entered promiscuous mode [ 24.942341][ T452] br2: port 2(vx100) entered blocking state [ 24.942771][ T452] br2: port 2(vx100) entered forwarding state [ 25.630052][ T149] br2: port 1(w1) entered blocking state [ 25.630376][ T149] br2: port 1(w1) entered forwarding state [ 37.673567][ T11] vx100: left allmulticast mode [ 37.673872][ T11] vx100: left promiscuous mode [ 37.674414][ T11] br2: port 2(vx100) entered disabled state [ 37.678760][ T11] w1: left allmulticast mode [ 37.678961][ T11] w1: left promiscuous mode [ 37.679272][ T11] br2: port 1(w1) entered disabled state [ 38.170875][ T11] vx100: left allmulticast mode [ 38.171266][ T11] vx100: left promiscuous mode [ 38.171604][ T11] br2: port 2(vx100) entered disabled state [ 38.173789][ T11] w1: left allmulticast mode [ 38.174093][ T11] w1: left promiscuous mode [ 38.174615][ T11] br2: port 1(w1) entered disabled state [ 39.965616][ T574] br1: port 3(veth2) entered disabled state [ 40.039312][ T575] veth2: left allmulticast mode [ 40.039544][ T575] veth2: left promiscuous mode [ 40.039863][ T575] br1: port 3(veth2) entered disabled state [ 40.199877][ T577] br1: port 2(veth1) entered disabled state [ 40.281504][ T578] veth1: left allmulticast mode [ 40.281736][ T578] veth1: left promiscuous mode [ 40.282043][ T578] br1: port 2(veth1) entered disabled state [ 40.361847][ T579] vx100: left allmulticast mode [ 40.362078][ T579] vx100: left promiscuous mode [ 40.362788][ T579] br1: port 1(vx100) entered disabled state [ 41.180968][ T588] [ 41.181140][ T588] ============================================ [ 41.181335][ T588] WARNING: possible recursive locking detected [ 41.181516][ T588] 6.13.0-rc5-virtme #1 Not tainted [ 41.181664][ T588] -------------------------------------------- [ 41.181845][ T588] ip/588 is trying to acquire lock: [ 41.181991][ T588] ffffffffbd5d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 41.182300][ T588] [ 41.182300][ T588] but task is already holding lock: [ 41.182511][ T588] ffffffffbd5d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 41.182806][ T588] [ 41.182806][ T588] other info that might help us debug this: [ 41.183020][ T588] Possible unsafe locking scenario: [ 41.183020][ T588] [ 41.183234][ T588] CPU0 [ 41.183344][ T588] ---- [ 41.183453][ T588] lock((netdev_chain).rwsem); [ 41.183598][ T588] lock((netdev_chain).rwsem); [ 41.183748][ T588] [ 41.183748][ T588] *** DEADLOCK *** [ 41.183748][ T588] [ 41.183966][ T588] May be due to missing lock nesting notation [ 41.183966][ T588] [ 41.184182][ T588] 2 locks held by ip/588: [ 41.184294][ T588] #0: ffffffffbd5e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 41.184562][ T588] #1: ffffffffbd5d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 41.184857][ T588] [ 41.184857][ T588] stack backtrace: [ 41.185039][ T588] CPU: 3 UID: 0 PID: 588 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 41.185260][ T588] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 41.185443][ T588] Call Trace: [ 41.185558][ T588] [ 41.185635][ T588] dump_stack_lvl+0x82/0xd0 [ 41.185801][ T588] print_deadlock_bug+0x40a/0x650 [ 41.185954][ T588] validate_chain+0x5bf/0xae0 [ 41.186107][ T588] ? __pfx_validate_chain+0x10/0x10 [ 41.186267][ T588] ? hlock_class+0x4e/0x130 [ 41.186413][ T588] ? mark_lock+0x38/0x3e0 [ 41.186527][ T588] __lock_acquire+0xb9a/0x1680 [ 41.186674][ T588] lock_acquire.part.0+0xeb/0x330 [ 41.186822][ T588] ? blocking_notifier_call_chain+0x50/0x90 [ 41.187006][ T588] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 41.187189][ T588] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 41.187338][ T588] ? trace_lock_acquire+0x14c/0x1f0 [ 41.187491][ T588] ? lock_acquire+0x32/0xc0 [ 41.187637][ T588] ? blocking_notifier_call_chain+0x50/0x90 [ 41.187820][ T588] down_read+0x9f/0x340 [ 41.187933][ T588] ? blocking_notifier_call_chain+0x50/0x90 [ 41.188115][ T588] ? __pfx_down_read+0x10/0x10 [ 41.188259][ T588] ? __lock_release+0x103/0x460 [ 41.188406][ T588] ? netconsole_netdev_event+0x2c1/0x620 [ 41.188559][ T588] ? __pfx___lock_release+0x10/0x10 [ 41.188708][ T588] blocking_notifier_call_chain+0x50/0x90 [ 41.188856][ T588] __netdev_upper_dev_unlink+0xd9/0x220 [ 41.189003][ T588] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 41.189188][ T588] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 41.189336][ T588] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 41.189523][ T588] ? rtnl_is_locked+0x15/0x20 [ 41.189671][ T588] netdev_upper_dev_unlink+0x71/0xa0 [ 41.189818][ T588] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 41.190000][ T588] ? netconsole_netdev_event+0x2c1/0x620 [ 41.190147][ T588] ? mutex_is_locked+0x1c/0x60 [ 41.190294][ T588] ? rtnl_is_locked+0x15/0x20 [ 41.190440][ T588] ? netdev_master_upper_dev_get+0x13/0x120 [ 41.190624][ T588] vrf_device_event+0x78/0xe0 [vrf] [ 41.190776][ T588] notifier_call_chain+0xcd/0x150 [ 41.190927][ T588] blocking_notifier_call_chain+0x66/0x90 [ 41.191075][ T588] unregister_netdevice_many_notify+0xa7b/0x1580 [ 41.191257][ T588] ? hlock_class+0x4e/0x130 [ 41.191404][ T588] ? mark_lock+0x38/0x3e0 [ 41.191517][ T588] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 41.191701][ T588] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 41.191883][ T588] ? kfree+0xf3/0x330 [ 41.191995][ T588] ? vlan_vid_del+0x310/0x5e0 [ 41.192146][ T588] ? vlan_vid_del+0x310/0x5e0 [ 41.192294][ T588] rtnl_dellink+0x348/0xa40 [ 41.192441][ T588] ? __pfx_rtnl_dellink+0x10/0x10 [ 41.192602][ T588] ? find_held_lock+0x2c/0x110 [ 41.192755][ T588] ? __lock_release+0x103/0x460 [ 41.192909][ T588] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 41.193056][ T588] ? __pfx___lock_release+0x10/0x10 [ 41.193202][ T588] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 41.193352][ T588] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 41.193499][ T588] ? __pfx_rtnl_dellink+0x10/0x10 [ 41.193647][ T588] rtnetlink_rcv_msg+0x712/0xc10 [ 41.193793][ T588] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 41.193947][ T588] ? hlock_class+0x4e/0x130 [ 41.194094][ T588] ? mark_lock+0x38/0x3e0 [ 41.194206][ T588] ? __lock_acquire+0xb9a/0x1680 [ 41.194354][ T588] netlink_rcv_skb+0x130/0x360 [ 41.194501][ T588] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 41.194646][ T588] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 41.194796][ T588] ? netlink_deliver_tap+0x13e/0x340 [ 41.194947][ T588] ? netlink_deliver_tap+0xc3/0x340 [ 41.195097][ T588] netlink_unicast+0x44b/0x710 [ 41.195244][ T588] ? __pfx_netlink_unicast+0x10/0x10 [ 41.195389][ T588] ? find_held_lock+0x2c/0x110 [ 41.195536][ T588] netlink_sendmsg+0x723/0xbe0 [ 41.195683][ T588] ? __pfx_netlink_sendmsg+0x10/0x10 [ 41.195841][ T588] ____sys_sendmsg+0x7ac/0xa10 [ 41.195992][ T588] ? __pfx_____sys_sendmsg+0x10/0x10 [ 41.196138][ T588] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 41.196326][ T588] ___sys_sendmsg+0xee/0x170 [ 41.196473][ T588] ? __pfx____sys_sendmsg+0x10/0x10 [ 41.196620][ T588] ? kasan_save_stack+0x34/0x50 [ 41.196767][ T588] ? kasan_save_stack+0x24/0x50 [ 41.196914][ T588] ? __kasan_record_aux_stack+0x8e/0xa0 [ 41.197068][ T588] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 41.197251][ T588] ? __x64_sys_close+0x7c/0xd0 [ 41.197399][ T588] ? do_syscall_64+0xc1/0x1d0 [ 41.197549][ T588] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 41.197731][ T588] ? __lock_acquire+0xb9a/0x1680 [ 41.197881][ T588] ? find_held_lock+0x2c/0x110 [ 41.198028][ T588] ? __lock_release+0x103/0x460 [ 41.198175][ T588] ? __virt_addr_valid+0x22b/0x430 [ 41.198329][ T588] ? __pfx___lock_release+0x10/0x10 [ 41.198475][ T588] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 41.198626][ T588] __sys_sendmsg+0x109/0x1a0 [ 41.198771][ T588] ? __pfx___sys_sendmsg+0x10/0x10 [ 41.198917][ T588] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 41.199102][ T588] do_syscall_64+0xc1/0x1d0 [ 41.199254][ T588] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 41.199437][ T588] RIP: 0033:0x7f66b09939a7 [ 41.199590][ T588] 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 [ 41.200103][ T588] RSP: 002b:00007ffd87c3fb48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 41.200328][ T588] RAX: ffffffffffffffda RBX: 00007ffd87c40270 RCX: 00007f66b09939a7 [ 41.200549][ T588] RDX: 0000000000000000 RSI: 00007ffd87c3fbb0 RDI: 0000000000000005 [ 41.200770][ T588] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 41.200993][ T588] R10: 00007f66b0851ef8 R11: 0000000000000246 R12: 0000000000000002 [ 41.201219][ T588] R13: 0000000067792f3a R14: 0000000000498600 R15: 0000000000000000 [ 41.201439][ T588]