[ 14.454720][ T302] 8021q: 802.1Q VLAN Support v1.8 [ 17.878161][ T347] br1: port 1(vx100) entered blocking state [ 17.878788][ T347] br1: port 1(vx100) entered disabled state [ 17.879208][ T347] vx100: entered allmulticast mode [ 17.881224][ T347] vx100: entered promiscuous mode [ 17.892214][ T347] br1: port 1(vx100) entered blocking state [ 17.892747][ T347] br1: port 1(vx100) entered forwarding state [ 18.069645][ T349] br1: port 2(veth1) entered blocking state [ 18.069960][ T349] br1: port 2(veth1) entered disabled state [ 18.070262][ T349] veth1: entered allmulticast mode [ 18.072143][ T349] veth1: entered promiscuous mode [ 18.145734][ T148] br1: port 2(veth1) entered blocking state [ 18.146136][ T148] br1: port 2(veth1) entered forwarding state [ 18.295072][ T353] br1: port 3(veth2) entered blocking state [ 18.295403][ T353] br1: port 3(veth2) entered disabled state [ 18.295684][ T353] veth2: entered allmulticast mode [ 18.297718][ T353] veth2: entered promiscuous mode [ 18.388999][ T37] br1: port 3(veth2) entered blocking state [ 18.389315][ T37] br1: port 3(veth2) entered forwarding state [ 21.616912][ T399] br2: port 1(w1) entered blocking state [ 21.617208][ T399] br2: port 1(w1) entered disabled state [ 21.617484][ T399] w1: entered allmulticast mode [ 21.619760][ T399] w1: entered promiscuous mode [ 22.256811][ T406] br2: port 2(vx100) entered blocking state [ 22.257257][ T406] br2: port 2(vx100) entered disabled state [ 22.257680][ T406] vx100: entered allmulticast mode [ 22.260952][ T406] vx100: entered promiscuous mode [ 22.261766][ T406] br2: port 2(vx100) entered blocking state [ 22.262172][ T406] br2: port 2(vx100) entered forwarding state [ 22.991508][ T68] br2: port 1(w1) entered blocking state [ 22.991992][ T68] br2: port 1(w1) entered forwarding state [ 25.476005][ T446] br2: port 1(w1) entered blocking state [ 25.476611][ T446] br2: port 1(w1) entered disabled state [ 25.476876][ T446] w1: entered allmulticast mode [ 25.478859][ T446] w1: entered promiscuous mode [ 26.085874][ T453] br2: port 2(vx100) entered blocking state [ 26.086187][ T453] br2: port 2(vx100) entered disabled state [ 26.086468][ T453] vx100: entered allmulticast mode [ 26.088394][ T453] vx100: entered promiscuous mode [ 26.088917][ T453] br2: port 2(vx100) entered blocking state [ 26.089173][ T453] br2: port 2(vx100) entered forwarding state [ 26.847557][ T68] br2: port 1(w1) entered blocking state [ 26.848225][ T68] br2: port 1(w1) entered forwarding state [ 39.072502][ T547] ip (547) used greatest stack depth: 23344 bytes left [ 39.152011][ T11] vx100: left allmulticast mode [ 39.152574][ T11] vx100: left promiscuous mode [ 39.153191][ T11] br2: port 2(vx100) entered disabled state [ 39.157696][ T11] w1: left allmulticast mode [ 39.158046][ T11] w1: left promiscuous mode [ 39.158598][ T11] br2: port 1(w1) entered disabled state [ 39.648523][ T11] vx100: left allmulticast mode [ 39.648752][ T11] vx100: left promiscuous mode [ 39.649101][ T11] br2: port 2(vx100) entered disabled state [ 39.651651][ T11] w1: left allmulticast mode [ 39.651869][ T11] w1: left promiscuous mode [ 39.652442][ T11] br2: port 1(w1) entered disabled state [ 41.815115][ T574] br1: port 3(veth2) entered disabled state [ 41.892820][ T575] veth2: left allmulticast mode [ 41.893077][ T575] veth2: left promiscuous mode [ 41.893872][ T575] br1: port 3(veth2) entered disabled state [ 42.094777][ T577] br1: port 2(veth1) entered disabled state [ 42.175845][ T578] veth1: left allmulticast mode [ 42.176141][ T578] veth1: left promiscuous mode [ 42.176478][ T578] br1: port 2(veth1) entered disabled state [ 42.264364][ T579] vx100: left allmulticast mode [ 42.264610][ T579] vx100: left promiscuous mode [ 42.264933][ T579] br1: port 1(vx100) entered disabled state [ 43.191065][ T588] [ 43.191217][ T588] ============================================ [ 43.191456][ T588] WARNING: possible recursive locking detected [ 43.191639][ T588] 6.13.0-rc5-virtme #1 Not tainted [ 43.191790][ T588] -------------------------------------------- [ 43.191968][ T588] ip/588 is trying to acquire lock: [ 43.192113][ T588] ffffffffa23d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 43.192439][ T588] [ 43.192439][ T588] but task is already holding lock: [ 43.192656][ T588] ffffffffa23d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 43.192950][ T588] [ 43.192950][ T588] other info that might help us debug this: [ 43.193163][ T588] Possible unsafe locking scenario: [ 43.193163][ T588] [ 43.193391][ T588] CPU0 [ 43.193504][ T588] ---- [ 43.193617][ T588] lock((netdev_chain).rwsem); [ 43.193767][ T588] lock((netdev_chain).rwsem); [ 43.193915][ T588] [ 43.193915][ T588] *** DEADLOCK *** [ 43.193915][ T588] [ 43.194130][ T588] May be due to missing lock nesting notation [ 43.194130][ T588] [ 43.194345][ T588] 2 locks held by ip/588: [ 43.194455][ T588] #0: ffffffffa23e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 43.194726][ T588] #1: ffffffffa23d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 43.195025][ T588] [ 43.195025][ T588] stack backtrace: [ 43.195212][ T588] CPU: 2 UID: 0 PID: 588 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 43.195441][ T588] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 43.195625][ T588] Call Trace: [ 43.195737][ T588] [ 43.195816][ T588] dump_stack_lvl+0x82/0xd0 [ 43.195970][ T588] print_deadlock_bug+0x40a/0x650 [ 43.196127][ T588] validate_chain+0x5bf/0xae0 [ 43.196280][ T588] ? __pfx_validate_chain+0x10/0x10 [ 43.196429][ T588] ? hlock_class+0x4e/0x130 [ 43.196576][ T588] ? mark_lock+0x38/0x3e0 [ 43.196691][ T588] __lock_acquire+0xb9a/0x1680 [ 43.196840][ T588] lock_acquire.part.0+0xeb/0x330 [ 43.196986][ T588] ? blocking_notifier_call_chain+0x50/0x90 [ 43.197174][ T588] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 43.197367][ T588] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 43.197523][ T588] ? trace_lock_acquire+0x14c/0x1f0 [ 43.197669][ T588] ? lock_acquire+0x32/0xc0 [ 43.197819][ T588] ? blocking_notifier_call_chain+0x50/0x90 [ 43.198003][ T588] down_read+0x9f/0x340 [ 43.198117][ T588] ? blocking_notifier_call_chain+0x50/0x90 [ 43.198300][ T588] ? __pfx_down_read+0x10/0x10 [ 43.198450][ T588] ? __lock_release+0x103/0x460 [ 43.198599][ T588] ? netconsole_netdev_event+0x2c1/0x620 [ 43.198745][ T588] ? __pfx___lock_release+0x10/0x10 [ 43.198893][ T588] blocking_notifier_call_chain+0x50/0x90 [ 43.199042][ T588] __netdev_upper_dev_unlink+0xd9/0x220 [ 43.199189][ T588] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 43.199374][ T588] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 43.199519][ T588] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 43.199709][ T588] ? rtnl_is_locked+0x15/0x20 [ 43.199855][ T588] netdev_upper_dev_unlink+0x71/0xa0 [ 43.200002][ T588] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 43.200184][ T588] ? netconsole_netdev_event+0x2c1/0x620 [ 43.200338][ T588] ? mutex_is_locked+0x1c/0x60 [ 43.200487][ T588] ? rtnl_is_locked+0x15/0x20 [ 43.200631][ T588] ? netdev_master_upper_dev_get+0x13/0x120 [ 43.200825][ T588] vrf_device_event+0x78/0xe0 [vrf] [ 43.200978][ T588] notifier_call_chain+0xcd/0x150 [ 43.201126][ T588] blocking_notifier_call_chain+0x66/0x90 [ 43.201273][ T588] unregister_netdevice_many_notify+0xa7b/0x1580 [ 43.201461][ T588] ? hlock_class+0x4e/0x130 [ 43.201605][ T588] ? mark_lock+0x38/0x3e0 [ 43.201716][ T588] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 43.201903][ T588] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 43.202086][ T588] ? kfree+0xf3/0x330 [ 43.202201][ T588] ? vlan_vid_del+0x310/0x5e0 [ 43.202351][ T588] ? vlan_vid_del+0x310/0x5e0 [ 43.202499][ T588] rtnl_dellink+0x348/0xa40 [ 43.202648][ T588] ? __pfx_rtnl_dellink+0x10/0x10 [ 43.202809][ T588] ? find_held_lock+0x2c/0x110 [ 43.202962][ T588] ? __lock_release+0x103/0x460 [ 43.203106][ T588] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 43.203252][ T588] ? __pfx___lock_release+0x10/0x10 [ 43.203407][ T588] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 43.203558][ T588] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 43.203702][ T588] ? __pfx_rtnl_dellink+0x10/0x10 [ 43.203849][ T588] rtnetlink_rcv_msg+0x712/0xc10 [ 43.204000][ T588] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 43.204147][ T588] ? hlock_class+0x4e/0x130 [ 43.204291][ T588] ? mark_lock+0x38/0x3e0 [ 43.204405][ T588] ? __lock_acquire+0xb9a/0x1680 [ 43.204552][ T588] netlink_rcv_skb+0x130/0x360 [ 43.204702][ T588] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 43.204848][ T588] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 43.205008][ T588] ? netlink_deliver_tap+0x13e/0x340 [ 43.205157][ T588] ? netlink_deliver_tap+0xc3/0x340 [ 43.205303][ T588] netlink_unicast+0x44b/0x710 [ 43.205450][ T588] ? __pfx_netlink_unicast+0x10/0x10 [ 43.205598][ T588] ? find_held_lock+0x2c/0x110 [ 43.205746][ T588] netlink_sendmsg+0x723/0xbe0 [ 43.205890][ T588] ? __pfx_netlink_sendmsg+0x10/0x10 [ 43.206045][ T588] ____sys_sendmsg+0x7ac/0xa10 [ 43.206194][ T588] ? __pfx_____sys_sendmsg+0x10/0x10 [ 43.206340][ T588] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 43.206530][ T588] ___sys_sendmsg+0xee/0x170 [ 43.206675][ T588] ? __pfx____sys_sendmsg+0x10/0x10 [ 43.206822][ T588] ? kasan_save_stack+0x34/0x50 [ 43.206969][ T588] ? kasan_save_stack+0x24/0x50 [ 43.207116][ T588] ? __kasan_record_aux_stack+0x8e/0xa0 [ 43.207273][ T588] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 43.207457][ T588] ? __x64_sys_close+0x7c/0xd0 [ 43.207603][ T588] ? do_syscall_64+0xc1/0x1d0 [ 43.207757][ T588] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.207945][ T588] ? __lock_acquire+0xb9a/0x1680 [ 43.208093][ T588] ? find_held_lock+0x2c/0x110 [ 43.208243][ T588] ? __lock_release+0x103/0x460 [ 43.208412][ T588] ? __virt_addr_valid+0x22b/0x430 [ 43.208576][ T588] ? __pfx___lock_release+0x10/0x10 [ 43.208734][ T588] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 43.208898][ T588] __sys_sendmsg+0x109/0x1a0 [ 43.209059][ T588] ? __pfx___sys_sendmsg+0x10/0x10 [ 43.209221][ T588] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 43.209423][ T588] do_syscall_64+0xc1/0x1d0 [ 43.209589][ T588] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.209791][ T588] RIP: 0033:0x7fd01e2449a7 [ 43.209964][ 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 [ 43.210535][ T588] RSP: 002b:00007ffff1483498 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 43.210784][ T588] RAX: ffffffffffffffda RBX: 00007ffff1483bc0 RCX: 00007fd01e2449a7 [ 43.211027][ T588] RDX: 0000000000000000 RSI: 00007ffff1483500 RDI: 0000000000000005 [ 43.211266][ T588] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 43.211506][ T588] R10: 00007fd01e102ef8 R11: 0000000000000246 R12: 0000000000000002 [ 43.211751][ T588] R13: 0000000067795447 R14: 0000000000498600 R15: 0000000000000000 [ 43.211999][ T588]