[ 11.010523][ T249] ip (249) used greatest stack depth: 24432 bytes left [ 13.369266][ T294] 8021q: 802.1Q VLAN Support v1.8 [ 15.083469][ T319] lag2: Mode changed to "loadbalance" [ 15.255381][ T322] lag2: Port device veth3 added [ 15.263349][ T322] ip (322) used greatest stack depth: 24000 bytes left [ 15.526807][ T325] lag2: Port device veth5 added [ 15.692236][ T327] 8021q: adding VLAN 0 to HW filter on device lag2 [ 15.692749][ T327] [ 15.692833][ T327] ====================================================== [ 15.693019][ T327] WARNING: possible circular locking dependency detected [ 15.693221][ T327] 6.13.0-rc5-virtme #1 Not tainted [ 15.693375][ T327] ------------------------------------------------------ [ 15.693560][ T327] ip/327 is trying to acquire lock: [ 15.693720][ T327] ffff88800975ad80 (team->team_lock_key){+.+.}-{4:4}, at: team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.694017][ T327] [ 15.694017][ T327] but task is already holding lock: [ 15.694255][ T327] ffffffffaf5d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 15.694575][ T327] [ 15.694575][ T327] which lock already depends on the new lock. [ 15.694575][ T327] [ 15.694918][ T327] [ 15.694918][ T327] the existing dependency chain (in reverse order) is: [ 15.695215][ T327] [ 15.695215][ T327] -> #1 ((netdev_chain).rwsem){++++}-{4:4}: [ 15.695447][ T327] __lock_acquire+0xb9a/0x1680 [ 15.695628][ T327] lock_acquire.part.0+0xeb/0x330 [ 15.695785][ T327] down_read+0x9f/0x340 [ 15.695939][ T327] blocking_notifier_call_chain+0x50/0x90 [ 15.696128][ T327] __dev_open+0x15c/0x430 [ 15.696284][ T327] dev_open+0xc9/0x130 [ 15.696440][ T327] team_port_add+0x90a/0x1ce0 [ 15.696601][ T327] team_add_slave+0x41/0x80 [ 15.696755][ T327] do_setlink.constprop.0+0x80e/0x2300 [ 15.696946][ T327] rtnl_newlink+0x69c/0xa70 [ 15.697102][ T327] rtnetlink_rcv_msg+0x712/0xc10 [ 15.697270][ T327] netlink_rcv_skb+0x130/0x360 [ 15.697423][ T327] netlink_unicast+0x44b/0x710 [ 15.697586][ T327] netlink_sendmsg+0x723/0xbe0 [ 15.697742][ T327] ____sys_sendmsg+0x7ac/0xa10 [ 15.697912][ T327] ___sys_sendmsg+0xee/0x170 [ 15.698092][ T327] __sys_sendmsg+0x109/0x1a0 [ 15.698249][ T327] do_syscall_64+0xc1/0x1d0 [ 15.698413][ T327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.698606][ T327] [ 15.698606][ T327] -> #0 (team->team_lock_key){+.+.}-{4:4}: [ 15.698845][ T327] check_prev_add+0x182/0xce0 [ 15.699007][ T327] validate_chain+0x7bd/0xae0 [ 15.699158][ T327] __lock_acquire+0xb9a/0x1680 [ 15.699312][ T327] lock_acquire.part.0+0xeb/0x330 [ 15.699475][ T327] __mutex_lock+0x169/0xbc0 [ 15.699637][ T327] team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.699795][ T327] vlan_vid_add+0x2bc/0x860 [ 15.699957][ T327] vlan_device_event+0x2f4/0x2130 [8021q] [ 15.700161][ T327] notifier_call_chain+0xcd/0x150 [ 15.700328][ T327] blocking_notifier_call_chain+0x66/0x90 [ 15.700516][ T327] __dev_notify_flags+0xe6/0x250 [ 15.700678][ T327] dev_change_flags+0xec/0x160 [ 15.700830][ T327] do_setlink.constprop.0+0x79d/0x2300 [ 15.701020][ T327] rtnl_newlink+0x69c/0xa70 [ 15.701172][ T327] rtnetlink_rcv_msg+0x712/0xc10 [ 15.701322][ T327] netlink_rcv_skb+0x130/0x360 [ 15.701483][ T327] netlink_unicast+0x44b/0x710 [ 15.701642][ T327] netlink_sendmsg+0x723/0xbe0 [ 15.701801][ T327] ____sys_sendmsg+0x7ac/0xa10 [ 15.701953][ T327] ___sys_sendmsg+0xee/0x170 [ 15.702115][ T327] __sys_sendmsg+0x109/0x1a0 [ 15.702276][ T327] do_syscall_64+0xc1/0x1d0 [ 15.702426][ T327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.702624][ T327] [ 15.702624][ T327] other info that might help us debug this: [ 15.702624][ T327] [ 15.702919][ T327] Possible unsafe locking scenario: [ 15.702919][ T327] [ 15.703141][ T327] CPU0 CPU1 [ 15.703289][ T327] ---- ---- [ 15.703437][ T327] rlock((netdev_chain).rwsem); [ 15.703621][ T327] lock(team->team_lock_key); [ 15.703853][ T327] lock((netdev_chain).rwsem); [ 15.704072][ T327] lock(team->team_lock_key); [ 15.704223][ T327] [ 15.704223][ T327] *** DEADLOCK *** [ 15.704223][ T327] [ 15.704453][ T327] 2 locks held by ip/327: [ 15.704575][ T327] #0: ffffffffaf5e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 15.704845][ T327] #1: ffffffffaf5d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 15.705172][ T327] [ 15.705172][ T327] stack backtrace: [ 15.705359][ T327] CPU: 0 UID: 0 PID: 327 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 15.705587][ T327] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.705790][ T327] Call Trace: [ 15.705904][ T327] [ 15.705987][ T327] dump_stack_lvl+0x82/0xd0 [ 15.706153][ T327] print_circular_bug+0x2e2/0x4b0 [ 15.706307][ T327] check_noncircular+0x2f9/0x3e0 [ 15.706459][ T327] ? __pfx_check_noncircular+0x10/0x10 [ 15.706625][ T327] ? rcu_read_lock_any_held+0x43/0xb0 [ 15.706790][ T327] ? validate_chain+0x1fe/0xae0 [ 15.706953][ T327] ? alloc_chain_hlocks+0x4e0/0x720 [ 15.707119][ T327] check_prev_add+0x182/0xce0 [ 15.707271][ T327] validate_chain+0x7bd/0xae0 [ 15.707422][ T327] ? find_held_lock+0x2c/0x110 [ 15.707575][ T327] ? __pfx_validate_chain+0x10/0x10 [ 15.707737][ T327] ? hlock_class+0x4e/0x130 [ 15.707885][ T327] ? mark_lock+0x38/0x3e0 [ 15.708001][ T327] __lock_acquire+0xb9a/0x1680 [ 15.708154][ T327] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 15.708343][ T327] lock_acquire.part.0+0xeb/0x330 [ 15.708494][ T327] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.708648][ T327] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.708801][ T327] ? trace_lock_acquire+0x14c/0x1f0 [ 15.708953][ T327] ? lock_acquire+0x32/0xc0 [ 15.709102][ T327] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.709285][ T327] __mutex_lock+0x169/0xbc0 [ 15.709470][ T327] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.709625][ T327] ? __create_object+0x5e/0xb0 [ 15.709776][ T327] ? __pfx___lock_release+0x10/0x10 [ 15.709946][ T327] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.710107][ T327] ? __pfx___mutex_lock+0x10/0x10 [ 15.710264][ T327] ? mark_held_locks+0x9e/0xe0 [ 15.710420][ T327] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 15.710609][ T327] ? __create_object+0x5e/0xb0 [ 15.710787][ T327] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.710954][ T327] team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.711108][ T327] vlan_vid_add+0x2bc/0x860 [ 15.711261][ T327] vlan_device_event+0x2f4/0x2130 [8021q] [ 15.711420][ T327] ? __pfx_vlan_device_event+0x10/0x10 [8021q] [ 15.711623][ T327] ? packet_notifier+0x3b0/0x810 [ 15.711778][ T327] notifier_call_chain+0xcd/0x150 [ 15.711940][ T327] blocking_notifier_call_chain+0x66/0x90 [ 15.712129][ T327] __dev_notify_flags+0xe6/0x250 [ 15.712283][ T327] ? __pfx___dev_notify_flags+0x10/0x10 [ 15.712436][ T327] ? __pfx___dev_change_flags+0x10/0x10 [ 15.712587][ T327] ? unwind_get_return_address+0x5e/0xa0 [ 15.712739][ T327] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 15.712929][ T327] ? __pfx_validate_chain+0x10/0x10 [ 15.713092][ T327] dev_change_flags+0xec/0x160 [ 15.713260][ T327] do_setlink.constprop.0+0x79d/0x2300 [ 15.713412][ T327] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 15.713599][ T327] ? lock_acquire.part.0+0xeb/0x330 [ 15.713761][ T327] ? rtnl_newlink+0x653/0xa70 [ 15.713913][ T327] ? rtnl_newlink+0xb9/0xa70 [ 15.714065][ T327] ? rtnetlink_rcv_msg+0x712/0xc10 [ 15.714228][ T327] ? __mutex_trylock_common+0xfa/0x260 [ 15.714380][ T327] ? __pfx___mutex_trylock_common+0x10/0x10 [ 15.714570][ T327] ? lock_acquire+0x32/0xc0 [ 15.714730][ T327] ? trace_contention_end+0xef/0x150 [ 15.714881][ T327] ? __mutex_lock+0x190/0xbc0 [ 15.715046][ T327] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 15.715206][ T327] ? rtnl_newlink+0x653/0xa70 [ 15.715394][ T327] ? __pfx___mutex_lock+0x10/0x10 [ 15.715560][ T327] ? __create_object+0x5e/0xb0 [ 15.715725][ T327] ? __rtnl_newlink+0x3f2/0xa80 [ 15.715892][ T327] rtnl_newlink+0x69c/0xa70 [ 15.716061][ T327] ? __pfx_rtnl_newlink+0x10/0x10 [ 15.716231][ T327] ? find_held_lock+0x2c/0x110 [ 15.716387][ T327] ? __pfx___lock_release+0x10/0x10 [ 15.716542][ T327] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.716694][ T327] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 15.716845][ T327] ? __pfx_rtnl_newlink+0x10/0x10 [ 15.716995][ T327] rtnetlink_rcv_msg+0x712/0xc10 [ 15.717148][ T327] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.717298][ T327] ? hlock_class+0x4e/0x130 [ 15.717448][ T327] ? mark_lock+0x38/0x3e0 [ 15.717567][ T327] ? __lock_acquire+0xb9a/0x1680 [ 15.717720][ T327] netlink_rcv_skb+0x130/0x360 [ 15.717882][ T327] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.718035][ T327] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 15.718201][ T327] ? netlink_deliver_tap+0x13e/0x340 [ 15.718356][ T327] ? netlink_deliver_tap+0xc3/0x340 [ 15.718508][ T327] netlink_unicast+0x44b/0x710 [ 15.718673][ T327] ? __pfx_netlink_unicast+0x10/0x10 [ 15.718824][ T327] ? find_held_lock+0x2c/0x110 [ 15.718989][ T327] netlink_sendmsg+0x723/0xbe0 [ 15.719141][ T327] ? __pfx_netlink_sendmsg+0x10/0x10 [ 15.719294][ T327] ____sys_sendmsg+0x7ac/0xa10 [ 15.719457][ T327] ? __pfx_____sys_sendmsg+0x10/0x10 [ 15.719607][ T327] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 15.719799][ T327] ___sys_sendmsg+0xee/0x170 [ 15.719965][ T327] ? __pfx____sys_sendmsg+0x10/0x10 [ 15.720128][ T327] ? kasan_save_stack+0x34/0x50 [ 15.720284][ T327] ? kasan_save_stack+0x24/0x50 [ 15.720446][ T327] ? __kasan_record_aux_stack+0x8e/0xa0 [ 15.720598][ T327] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 15.720789][ T327] ? __x64_sys_close+0x7c/0xd0 [ 15.720943][ T327] ? do_syscall_64+0xc1/0x1d0 [ 15.721094][ T327] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.721283][ T327] ? __lock_acquire+0xb9a/0x1680 [ 15.721437][ T327] ? find_held_lock+0x2c/0x110 [ 15.721586][ T327] ? __lock_release+0x103/0x460 [ 15.721761][ T327] ? __virt_addr_valid+0x22b/0x430 [ 15.721912][ T327] ? __pfx___lock_release+0x10/0x10 [ 15.722070][ T327] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.722220][ T327] __sys_sendmsg+0x109/0x1a0 [ 15.722372][ T327] ? __pfx___sys_sendmsg+0x10/0x10 [ 15.722522][ T327] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 15.722716][ T327] do_syscall_64+0xc1/0x1d0 [ 15.722865][ T327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.723051][ T327] RIP: 0033:0x7f3a9b1899a7 [ 15.723236][ T327] 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 [ 15.723761][ T327] RSP: 002b:00007ffe9eea0098 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.723997][ T327] RAX: ffffffffffffffda RBX: 00007ffe9eea07c0 RCX: 00007f3a9b1899a7 [ 15.724226][ T327] RDX: 0000000000000000 RSI: 00007ffe9eea0100 RDI: 0000000000000005 [ 15.724454][ T327] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 15.724682][ T327] R10: 00007f3a9b047ef8 R11: 0000000000000246 R12: 0000000000000003 [ 15.724905][ T327] R13: 0000000067795395 R14: 0000000000498600 R15: 0000000000000000 [ 15.725185][ T327] [ 15.737235][ T327] ip (327) used greatest stack depth: 22968 bytes left [ 15.792518][ T328] 8021q: adding VLAN 0 to HW filter on device lag2 [ 16.114996][ T333] gre: GRE over IPv4 demultiplexor driver [ 16.129015][ T333] ip_gre: GRE over IPv4 tunneling driver [ 17.415500][ T360] lag1: Mode changed to "loadbalance" [ 17.609018][ T363] lag1: Port device veth2 added [ 17.782051][ T366] lag1: Port device veth4 added [ 17.895368][ T368] 8021q: adding VLAN 0 to HW filter on device lag1 [ 23.889239][ T394] Mirror/redirect action on [ 24.022456][ T397] GACT probability NOT on [ 24.100534][ T398] lag2: Port device veth5 removed [ 28.059464][ T408] lag2: Port device veth3 removed [ 32.945456][ T438] lag2: Mode changed to "loadbalance" [ 33.069067][ T441] lag2: Port device veth3 added [ 33.298599][ T446] lag2: Port device veth5 added [ 33.429543][ T449] 8021q: adding VLAN 0 to HW filter on device lag2 [ 33.497128][ T450] 8021q: adding VLAN 0 to HW filter on device lag2 [ 39.621377][ T484] lag2: Port device veth3 removed [ 43.568267][ T494] lag2: Port device veth5 removed [ 48.507039][ T524] lag2: Mode changed to "loadbalance" [ 48.672989][ T527] lag2: Port device veth3 added [ 48.862145][ T532] lag2: Port device veth5 added [ 49.000570][ T534] 8021q: adding VLAN 0 to HW filter on device lag2 [ 49.079570][ T535] 8021q: adding VLAN 0 to HW filter on device lag2 [ 55.223676][ T360] lag1: Port device veth4 removed [ 55.229042][ T360] lag1: Port device veth2 removed [ 56.674659][ T524] lag2: Port device veth5 removed [ 56.677212][ T524] lag2: Port device veth3 removed