[ 14.039107][ T301] 8021q: 802.1Q VLAN Support v1.8 [ 17.553383][ T346] br1: port 1(vx100) entered blocking state [ 17.554014][ T346] br1: port 1(vx100) entered disabled state [ 17.554675][ T346] vx100: entered allmulticast mode [ 17.558783][ T346] vx100: entered promiscuous mode [ 17.561055][ T346] br1: port 1(vx100) entered blocking state [ 17.561618][ T346] br1: port 1(vx100) entered forwarding state [ 17.723050][ T348] br1: port 2(veth1) entered blocking state [ 17.723995][ T348] br1: port 2(veth1) entered disabled state [ 17.724301][ T348] veth1: entered allmulticast mode [ 17.726178][ T348] veth1: entered promiscuous mode [ 17.794955][ T150] br1: port 2(veth1) entered blocking state [ 17.795569][ T150] br1: port 2(veth1) entered forwarding state [ 17.964841][ T351] br1: port 3(veth2) entered blocking state [ 17.965116][ T351] br1: port 3(veth2) entered disabled state [ 17.965395][ T351] veth2: entered allmulticast mode [ 17.967346][ T351] veth2: entered promiscuous mode [ 18.056875][ T47] br1: port 3(veth2) entered blocking state [ 18.057186][ T47] br1: port 3(veth2) entered forwarding state [ 21.325729][ T399] br2: port 1(w1) entered blocking state [ 21.326035][ T399] br2: port 1(w1) entered disabled state [ 21.326359][ T399] w1: entered allmulticast mode [ 21.328464][ T399] w1: entered promiscuous mode [ 21.981496][ T406] br2: port 2(vx100) entered blocking state [ 21.981952][ T406] br2: port 2(vx100) entered disabled state [ 21.982497][ T406] vx100: entered allmulticast mode [ 21.985859][ T406] vx100: entered promiscuous mode [ 21.986776][ T406] br2: port 2(vx100) entered blocking state [ 21.987198][ T406] br2: port 2(vx100) entered forwarding state [ 22.707198][ T47] br2: port 1(w1) entered blocking state [ 22.707648][ T47] br2: port 1(w1) entered forwarding state [ 25.173613][ T446] br2: port 1(w1) entered blocking state [ 25.174113][ T446] br2: port 1(w1) entered disabled state [ 25.174521][ T446] w1: entered allmulticast mode [ 25.176503][ T446] w1: entered promiscuous mode [ 25.786507][ T453] br2: port 2(vx100) entered blocking state [ 25.786832][ T453] br2: port 2(vx100) entered disabled state [ 25.787114][ T453] vx100: entered allmulticast mode [ 25.789091][ T453] vx100: entered promiscuous mode [ 25.789847][ T453] br2: port 2(vx100) entered blocking state [ 25.790129][ T453] br2: port 2(vx100) entered forwarding state [ 26.537866][ T150] br2: port 1(w1) entered blocking state [ 26.538400][ T150] br2: port 1(w1) entered forwarding state [ 38.722217][ T66] vx100: left allmulticast mode [ 38.722541][ T66] vx100: left promiscuous mode [ 38.722922][ T66] br2: port 2(vx100) entered disabled state [ 38.726434][ T66] w1: left allmulticast mode [ 38.726665][ T66] w1: left promiscuous mode [ 38.726982][ T66] br2: port 1(w1) entered disabled state [ 39.259859][ T66] vx100: left allmulticast mode [ 39.260125][ T66] vx100: left promiscuous mode [ 39.260513][ T66] br2: port 2(vx100) entered disabled state [ 39.262805][ T66] w1: left allmulticast mode [ 39.263251][ T66] w1: left promiscuous mode [ 39.263612][ T66] br2: port 1(w1) entered disabled state [ 41.328714][ T575] br1: port 3(veth2) entered disabled state [ 41.409338][ T576] veth2: left allmulticast mode [ 41.409576][ T576] veth2: left promiscuous mode [ 41.409935][ T576] br1: port 3(veth2) entered disabled state [ 41.564752][ T578] br1: port 2(veth1) entered disabled state [ 41.650254][ T579] veth1: left allmulticast mode [ 41.650544][ T579] veth1: left promiscuous mode [ 41.650913][ T579] br1: port 2(veth1) entered disabled state [ 41.728816][ T580] vx100: left allmulticast mode [ 41.729154][ T580] vx100: left promiscuous mode [ 41.729507][ T580] br1: port 1(vx100) entered disabled state [ 42.577084][ T589] [ 42.577296][ T589] ============================================ [ 42.577489][ T589] WARNING: possible recursive locking detected [ 42.577690][ T589] 6.13.0-rc5-virtme #1 Not tainted [ 42.577838][ T589] -------------------------------------------- [ 42.578035][ T589] ip/589 is trying to acquire lock: [ 42.578206][ T589] ffffffffac3d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 42.578524][ T589] [ 42.578524][ T589] but task is already holding lock: [ 42.578739][ T589] ffffffffac3d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 42.579053][ T589] [ 42.579053][ T589] other info that might help us debug this: [ 42.579271][ T589] Possible unsafe locking scenario: [ 42.579271][ T589] [ 42.579499][ T589] CPU0 [ 42.579611][ T589] ---- [ 42.579737][ T589] lock((netdev_chain).rwsem); [ 42.579888][ T589] lock((netdev_chain).rwsem); [ 42.580048][ T589] [ 42.580048][ T589] *** DEADLOCK *** [ 42.580048][ T589] [ 42.580288][ T589] May be due to missing lock nesting notation [ 42.580288][ T589] [ 42.580513][ T589] 2 locks held by ip/589: [ 42.580624][ T589] #0: ffffffffac3e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 42.580904][ T589] #1: ffffffffac3d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 42.581205][ T589] [ 42.581205][ T589] stack backtrace: [ 42.581397][ T589] CPU: 3 UID: 0 PID: 589 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 42.581628][ T589] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 42.581826][ T589] Call Trace: [ 42.581953][ T589] [ 42.582033][ T589] dump_stack_lvl+0x82/0xd0 [ 42.582192][ T589] print_deadlock_bug+0x40a/0x650 [ 42.582355][ T589] validate_chain+0x5bf/0xae0 [ 42.582502][ T589] ? __pfx_validate_chain+0x10/0x10 [ 42.582652][ T589] ? hlock_class+0x4e/0x130 [ 42.582813][ T589] ? mark_lock+0x38/0x3e0 [ 42.582940][ T589] __lock_acquire+0xb9a/0x1680 [ 42.583100][ T589] lock_acquire.part.0+0xeb/0x330 [ 42.583258][ T589] ? blocking_notifier_call_chain+0x50/0x90 [ 42.583451][ T589] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 42.583657][ T589] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 42.583816][ T589] ? trace_lock_acquire+0x14c/0x1f0 [ 42.583963][ T589] ? lock_acquire+0x32/0xc0 [ 42.584112][ T589] ? blocking_notifier_call_chain+0x50/0x90 [ 42.584301][ T589] down_read+0x9f/0x340 [ 42.584423][ T589] ? blocking_notifier_call_chain+0x50/0x90 [ 42.584618][ T589] ? __pfx_down_read+0x10/0x10 [ 42.584782][ T589] ? __lock_release+0x103/0x460 [ 42.584940][ T589] ? netconsole_netdev_event+0x2c1/0x620 [ 42.585089][ T589] ? __pfx___lock_release+0x10/0x10 [ 42.585238][ T589] blocking_notifier_call_chain+0x50/0x90 [ 42.585388][ T589] __netdev_upper_dev_unlink+0xd9/0x220 [ 42.585537][ T589] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 42.585720][ T589] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 42.585868][ T589] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 42.586053][ T589] ? rtnl_is_locked+0x15/0x20 [ 42.586204][ T589] netdev_upper_dev_unlink+0x71/0xa0 [ 42.586350][ T589] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 42.586534][ T589] ? netconsole_netdev_event+0x2c1/0x620 [ 42.586682][ T589] ? mutex_is_locked+0x1c/0x60 [ 42.586853][ T589] ? rtnl_is_locked+0x15/0x20 [ 42.586999][ T589] ? netdev_master_upper_dev_get+0x13/0x120 [ 42.587183][ T589] vrf_device_event+0x78/0xe0 [vrf] [ 42.587333][ T589] notifier_call_chain+0xcd/0x150 [ 42.587479][ T589] blocking_notifier_call_chain+0x66/0x90 [ 42.587627][ T589] unregister_netdevice_many_notify+0xa7b/0x1580 [ 42.587812][ T589] ? hlock_class+0x4e/0x130 [ 42.587966][ T589] ? mark_lock+0x38/0x3e0 [ 42.588079][ T589] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 42.588261][ T589] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 42.588448][ T589] ? kfree+0xf3/0x330 [ 42.588562][ T589] ? vlan_vid_del+0x310/0x5e0 [ 42.588713][ T589] ? vlan_vid_del+0x310/0x5e0 [ 42.588861][ T589] rtnl_dellink+0x348/0xa40 [ 42.589015][ T589] ? __pfx_rtnl_dellink+0x10/0x10 [ 42.589177][ T589] ? find_held_lock+0x2c/0x110 [ 42.589324][ T589] ? __lock_release+0x103/0x460 [ 42.589469][ T589] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 42.589617][ T589] ? __pfx___lock_release+0x10/0x10 [ 42.589762][ T589] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 42.589910][ T589] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 42.590057][ T589] ? __pfx_rtnl_dellink+0x10/0x10 [ 42.590207][ T589] rtnetlink_rcv_msg+0x712/0xc10 [ 42.590357][ T589] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 42.590519][ T589] ? hlock_class+0x4e/0x130 [ 42.590682][ T589] ? mark_lock+0x38/0x3e0 [ 42.590808][ T589] ? __lock_acquire+0xb9a/0x1680 [ 42.590969][ T589] netlink_rcv_skb+0x130/0x360 [ 42.591128][ T589] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 42.591292][ T589] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 42.591458][ T589] ? netlink_deliver_tap+0x13e/0x340 [ 42.591621][ T589] ? netlink_deliver_tap+0xc3/0x340 [ 42.591784][ T589] netlink_unicast+0x44b/0x710 [ 42.591944][ T589] ? __pfx_netlink_unicast+0x10/0x10 [ 42.592109][ T589] ? find_held_lock+0x2c/0x110 [ 42.592272][ T589] netlink_sendmsg+0x723/0xbe0 [ 42.592436][ T589] ? __pfx_netlink_sendmsg+0x10/0x10 [ 42.592599][ T589] ____sys_sendmsg+0x7ac/0xa10 [ 42.592773][ T589] ? __pfx_____sys_sendmsg+0x10/0x10 [ 42.592935][ T589] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 42.593146][ T589] ___sys_sendmsg+0xee/0x170 [ 42.593312][ T589] ? __pfx____sys_sendmsg+0x10/0x10 [ 42.593475][ T589] ? kasan_save_stack+0x34/0x50 [ 42.593641][ T589] ? kasan_save_stack+0x24/0x50 [ 42.593803][ T589] ? __kasan_record_aux_stack+0x8e/0xa0 [ 42.593967][ T589] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 42.594168][ T589] ? __x64_sys_close+0x7c/0xd0 [ 42.594329][ T589] ? do_syscall_64+0xc1/0x1d0 [ 42.594491][ T589] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.594694][ T589] ? __lock_acquire+0xb9a/0x1680 [ 42.594860][ T589] ? find_held_lock+0x2c/0x110 [ 42.595030][ T589] ? __lock_release+0x103/0x460 [ 42.595191][ T589] ? __virt_addr_valid+0x22b/0x430 [ 42.595365][ T589] ? __pfx___lock_release+0x10/0x10 [ 42.595524][ T589] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 42.595695][ T589] __sys_sendmsg+0x109/0x1a0 [ 42.595862][ T589] ? __pfx___sys_sendmsg+0x10/0x10 [ 42.596037][ T589] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 42.596250][ T589] do_syscall_64+0xc1/0x1d0 [ 42.596410][ T589] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.596617][ T589] RIP: 0033:0x7f10312099a7 [ 42.596787][ T589] 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 [ 42.597378][ T589] RSP: 002b:00007ffddd3562c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 42.597629][ T589] RAX: ffffffffffffffda RBX: 00007ffddd3569f0 RCX: 00007f10312099a7 [ 42.597887][ T589] RDX: 0000000000000000 RSI: 00007ffddd356330 RDI: 0000000000000005 [ 42.598130][ T589] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 42.598381][ T589] R10: 00007f10310c7ef8 R11: 0000000000000246 R12: 0000000000000002 [ 42.598630][ T589] R13: 0000000067792ba5 R14: 0000000000498600 R15: 0000000000000000 [ 42.598886][ T589]