[ 10.161472][ T250] ip (250) used greatest stack depth: 23288 bytes left [ 12.372103][ T307] 8021q: 802.1Q VLAN Support v1.8 [ 15.420105][ T378] GACT probability NOT on [ 16.834202][ T413] br10: port 1(veth1.10) entered blocking state [ 16.835092][ T413] br10: port 1(veth1.10) entered disabled state [ 16.836082][ T413] veth1.10: entered allmulticast mode [ 16.836440][ T413] veth1: entered allmulticast mode [ 16.839944][ T413] veth1.10: entered promiscuous mode [ 16.840265][ T413] veth1: entered promiscuous mode [ 17.322325][ T430] br11: port 1(veth1.11) entered blocking state [ 17.322694][ T430] br11: port 1(veth1.11) entered disabled state [ 17.323020][ T430] veth1.11: entered allmulticast mode [ 17.325011][ T430] veth1.11: entered promiscuous mode [ 18.154943][ T460] br10: port 2(veth2.10) entered blocking state [ 18.155234][ T460] br10: port 2(veth2.10) entered disabled state [ 18.155539][ T460] veth2.10: entered allmulticast mode [ 18.156032][ T460] veth2: entered allmulticast mode [ 18.158050][ T460] veth2.10: entered promiscuous mode [ 18.158257][ T460] veth2: entered promiscuous mode [ 18.634636][ T477] br11: port 2(veth2.11) entered blocking state [ 18.635033][ T477] br11: port 2(veth2.11) entered disabled state [ 18.636072][ T477] veth2.11: entered allmulticast mode [ 18.639337][ T477] veth2.11: entered promiscuous mode [ 19.054078][ T489] br10: port 2(veth2.10) entered blocking state [ 19.054743][ T489] br10: port 2(veth2.10) entered forwarding state [ 19.056074][ T489] br10: port 1(veth1.10) entered blocking state [ 19.056490][ T489] br10: port 1(veth1.10) entered forwarding state [ 19.180124][ T494] br11: port 2(veth2.11) entered blocking state [ 19.180609][ T494] br11: port 2(veth2.11) entered forwarding state [ 19.181101][ T494] br11: port 1(veth1.11) entered blocking state [ 19.181393][ T494] br11: port 1(veth1.11) entered forwarding state [ 45.752160][ T620] br11: port 2(veth2.11) entered disabled state [ 45.753505][ T620] br11: port 1(veth1.11) entered disabled state [ 45.856838][ T622] br10: port 2(veth2.10) entered disabled state [ 45.857541][ T622] br10: port 1(veth1.10) entered disabled state [ 46.062528][ T626] veth2.11: left allmulticast mode [ 46.062800][ T626] veth2.11: left promiscuous mode [ 46.063175][ T626] br11: port 2(veth2.11) entered disabled state [ 46.283285][ T631] veth2: left allmulticast mode [ 46.283866][ T631] veth2: left promiscuous mode [ 46.368635][ T634] veth2.10: left allmulticast mode [ 46.368872][ T634] veth2.10: left promiscuous mode [ 46.369185][ T634] br10: port 2(veth2.10) entered disabled state [ 46.965042][ T644] veth1.11: left allmulticast mode [ 46.965297][ T644] veth1.11: left promiscuous mode [ 46.965647][ T644] br11: port 1(veth1.11) entered disabled state [ 47.229285][ T648] veth1: left allmulticast mode [ 47.229827][ T648] veth1: left promiscuous mode [ 47.316521][ T650] veth1.10: left allmulticast mode [ 47.316762][ T650] veth1.10: left promiscuous mode [ 47.317083][ T650] br10: port 1(veth1.10) entered disabled state [ 48.227550][ T664] [ 48.227770][ T664] ============================================ [ 48.227964][ T664] WARNING: possible recursive locking detected [ 48.228149][ T664] 6.13.0-rc5-virtme #1 Not tainted [ 48.228296][ T664] -------------------------------------------- [ 48.228478][ T664] ip/664 is trying to acquire lock: [ 48.228628][ T664] ffffffff86fd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 48.228936][ T664] [ 48.228936][ T664] but task is already holding lock: [ 48.229151][ T664] ffffffff86fd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 48.229457][ T664] [ 48.229457][ T664] other info that might help us debug this: [ 48.229677][ T664] Possible unsafe locking scenario: [ 48.229677][ T664] [ 48.229900][ T664] CPU0 [ 48.230013][ T664] ---- [ 48.230122][ T664] lock((netdev_chain).rwsem); [ 48.230271][ T664] lock((netdev_chain).rwsem); [ 48.230420][ T664] [ 48.230420][ T664] *** DEADLOCK *** [ 48.230420][ T664] [ 48.230640][ T664] May be due to missing lock nesting notation [ 48.230640][ T664] [ 48.230864][ T664] 2 locks held by ip/664: [ 48.230980][ T664] #0: ffffffff86fe7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 48.231255][ T664] #1: ffffffff86fd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 48.231553][ T664] [ 48.231553][ T664] stack backtrace: [ 48.231736][ T664] CPU: 0 UID: 0 PID: 664 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 48.231965][ T664] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 48.232148][ T664] Call Trace: [ 48.232263][ T664] [ 48.232340][ T664] dump_stack_lvl+0x82/0xd0 [ 48.232497][ T664] print_deadlock_bug+0x40a/0x650 [ 48.232645][ T664] validate_chain+0x5bf/0xae0 [ 48.232792][ T664] ? __pfx_validate_chain+0x10/0x10 [ 48.232942][ T664] ? hlock_class+0x4e/0x130 [ 48.233092][ T664] ? mark_lock+0x38/0x3e0 [ 48.233206][ T664] __lock_acquire+0xb9a/0x1680 [ 48.233352][ T664] lock_acquire.part.0+0xeb/0x330 [ 48.233501][ T664] ? blocking_notifier_call_chain+0x50/0x90 [ 48.233682][ T664] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 48.233869][ T664] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 48.234014][ T664] ? trace_lock_acquire+0x14c/0x1f0 [ 48.234165][ T664] ? lock_acquire+0x32/0xc0 [ 48.234308][ T664] ? blocking_notifier_call_chain+0x50/0x90 [ 48.234489][ T664] down_read+0x9f/0x340 [ 48.234601][ T664] ? blocking_notifier_call_chain+0x50/0x90 [ 48.234782][ T664] ? __pfx_down_read+0x10/0x10 [ 48.234927][ T664] ? __lock_release+0x103/0x460 [ 48.235071][ T664] ? netconsole_netdev_event+0x2c1/0x620 [ 48.235222][ T664] ? __pfx___lock_release+0x10/0x10 [ 48.235367][ T664] blocking_notifier_call_chain+0x50/0x90 [ 48.235515][ T664] __netdev_upper_dev_unlink+0xd9/0x220 [ 48.235665][ T664] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 48.235856][ T664] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 48.236000][ T664] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 48.236205][ T664] ? rtnl_is_locked+0x15/0x20 [ 48.236355][ T664] netdev_upper_dev_unlink+0x71/0xa0 [ 48.236501][ T664] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 48.236684][ T664] ? netconsole_netdev_event+0x2c1/0x620 [ 48.236829][ T664] ? mutex_is_locked+0x1c/0x60 [ 48.236979][ T664] ? rtnl_is_locked+0x15/0x20 [ 48.237126][ T664] ? netdev_master_upper_dev_get+0x13/0x120 [ 48.237309][ T664] vrf_device_event+0x78/0xe0 [vrf] [ 48.237460][ T664] notifier_call_chain+0xcd/0x150 [ 48.237608][ T664] blocking_notifier_call_chain+0x66/0x90 [ 48.237756][ T664] unregister_netdevice_many_notify+0xa7b/0x1580 [ 48.237937][ T664] ? hlock_class+0x4e/0x130 [ 48.238083][ T664] ? mark_lock+0x38/0x3e0 [ 48.238196][ T664] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 48.238383][ T664] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 48.238566][ T664] ? kfree+0xf3/0x330 [ 48.238680][ T664] ? vlan_vid_del+0x310/0x5e0 [ 48.238829][ T664] ? vlan_vid_del+0x310/0x5e0 [ 48.238979][ T664] rtnl_dellink+0x348/0xa40 [ 48.239128][ T664] ? __pfx_rtnl_dellink+0x10/0x10 [ 48.239289][ T664] ? find_held_lock+0x2c/0x110 [ 48.239437][ T664] ? __lock_release+0x103/0x460 [ 48.239588][ T664] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 48.239734][ T664] ? __pfx___lock_release+0x10/0x10 [ 48.239882][ T664] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 48.240032][ T664] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 48.240179][ T664] ? __pfx_rtnl_dellink+0x10/0x10 [ 48.240324][ T664] rtnetlink_rcv_msg+0x712/0xc10 [ 48.240470][ T664] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 48.240621][ T664] ? hlock_class+0x4e/0x130 [ 48.240768][ T664] ? mark_lock+0x38/0x3e0 [ 48.240881][ T664] ? __lock_acquire+0xb9a/0x1680 [ 48.241030][ T664] netlink_rcv_skb+0x130/0x360 [ 48.241179][ T664] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 48.241325][ T664] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 48.241475][ T664] ? netlink_deliver_tap+0x13e/0x340 [ 48.241628][ T664] ? netlink_deliver_tap+0xc3/0x340 [ 48.241776][ T664] netlink_unicast+0x44b/0x710 [ 48.241926][ T664] ? __pfx_netlink_unicast+0x10/0x10 [ 48.242071][ T664] ? find_held_lock+0x2c/0x110 [ 48.242219][ T664] netlink_sendmsg+0x723/0xbe0 [ 48.242365][ T664] ? __pfx_netlink_sendmsg+0x10/0x10 [ 48.242514][ T664] ____sys_sendmsg+0x7ac/0xa10 [ 48.242667][ T664] ? __pfx_____sys_sendmsg+0x10/0x10 [ 48.242812][ T664] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 48.242997][ T664] ___sys_sendmsg+0xee/0x170 [ 48.243143][ T664] ? __pfx____sys_sendmsg+0x10/0x10 [ 48.243289][ T664] ? kasan_save_stack+0x34/0x50 [ 48.243436][ T664] ? kasan_save_stack+0x24/0x50 [ 48.243583][ T664] ? __kasan_record_aux_stack+0x8e/0xa0 [ 48.243735][ T664] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 48.243918][ T664] ? __x64_sys_close+0x7c/0xd0 [ 48.244067][ T664] ? do_syscall_64+0xc1/0x1d0 [ 48.244214][ T664] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 48.244398][ T664] ? __lock_acquire+0xb9a/0x1680 [ 48.244544][ T664] ? find_held_lock+0x2c/0x110 [ 48.244700][ T664] ? __lock_release+0x103/0x460 [ 48.244847][ T664] ? __virt_addr_valid+0x22b/0x430 [ 48.245005][ T664] ? __pfx___lock_release+0x10/0x10 [ 48.245159][ T664] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 48.245745][ T664] __sys_sendmsg+0x109/0x1a0 [ 48.245890][ T664] ? __pfx___sys_sendmsg+0x10/0x10 [ 48.246036][ T664] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 48.246232][ T664] do_syscall_64+0xc1/0x1d0 [ 48.246378][ T664] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 48.246565][ T664] RIP: 0033:0x7efc48e319a7 [ 48.246720][ T664] 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 [ 48.247314][ T664] RSP: 002b:00007ffe46447ef8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 48.247564][ T664] RAX: ffffffffffffffda RBX: 00007ffe46448620 RCX: 00007efc48e319a7 [ 48.247803][ T664] RDX: 0000000000000000 RSI: 00007ffe46447f60 RDI: 0000000000000005 [ 48.248045][ T664] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 48.248286][ T664] R10: 00007efc48cefef8 R11: 0000000000000246 R12: 0000000000000002 [ 48.248529][ T664] R13: 0000000067792e98 R14: 0000000000498600 R15: 0000000000000000 [ 48.248776][ T664]