[ 10.889484][ T249] ip (249) used greatest stack depth: 24296 bytes left [ 13.289613][ T294] 8021q: 802.1Q VLAN Support v1.8 [ 15.017475][ T319] lag2: Mode changed to "loadbalance" [ 15.206681][ T322] lag2: Port device veth3 added [ 15.504244][ T325] lag2: Port device veth5 added [ 15.660886][ T327] 8021q: adding VLAN 0 to HW filter on device lag2 [ 15.661388][ T327] [ 15.661473][ T327] ====================================================== [ 15.661670][ T327] WARNING: possible circular locking dependency detected [ 15.661865][ T327] 6.13.0-rc5-virtme #1 Not tainted [ 15.662017][ T327] ------------------------------------------------------ [ 15.662205][ T327] ip/327 is trying to acquire lock: [ 15.662367][ T327] ffff88800bf4ad80 (team->team_lock_key){+.+.}-{4:4}, at: team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.662662][ T327] [ 15.662662][ T327] but task is already holding lock: [ 15.662902][ T327] ffffffffb29d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 15.663220][ T327] [ 15.663220][ T327] which lock already depends on the new lock. [ 15.663220][ T327] [ 15.663517][ T327] [ 15.663517][ T327] the existing dependency chain (in reverse order) is: [ 15.663782][ T327] [ 15.663782][ T327] -> #1 ((netdev_chain).rwsem){++++}-{4:4}: [ 15.664012][ T327] __lock_acquire+0xb9a/0x1680 [ 15.664172][ T327] lock_acquire.part.0+0xeb/0x330 [ 15.664327][ T327] down_read+0x9f/0x340 [ 15.664488][ T327] blocking_notifier_call_chain+0x50/0x90 [ 15.664683][ T327] __dev_open+0x15c/0x430 [ 15.664842][ T327] dev_open+0xc9/0x130 [ 15.664997][ T327] team_port_add+0x90a/0x1ce0 [ 15.665154][ T327] team_add_slave+0x41/0x80 [ 15.665306][ T327] do_setlink.constprop.0+0x80e/0x2300 [ 15.665504][ T327] rtnl_newlink+0x69c/0xa70 [ 15.665656][ T327] rtnetlink_rcv_msg+0x712/0xc10 [ 15.665805][ T327] netlink_rcv_skb+0x130/0x360 [ 15.665963][ T327] netlink_unicast+0x44b/0x710 [ 15.666115][ T327] netlink_sendmsg+0x723/0xbe0 [ 15.666296][ T327] ____sys_sendmsg+0x7ac/0xa10 [ 15.666453][ T327] ___sys_sendmsg+0xee/0x170 [ 15.666605][ T327] __sys_sendmsg+0x109/0x1a0 [ 15.666754][ T327] do_syscall_64+0xc1/0x1d0 [ 15.666913][ T327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.667103][ T327] [ 15.667103][ T327] -> #0 (team->team_lock_key){+.+.}-{4:4}: [ 15.667332][ T327] check_prev_add+0x182/0xce0 [ 15.667487][ T327] validate_chain+0x7bd/0xae0 [ 15.667642][ T327] __lock_acquire+0xb9a/0x1680 [ 15.667795][ T327] lock_acquire.part.0+0xeb/0x330 [ 15.667950][ T327] __mutex_lock+0x169/0xbc0 [ 15.668102][ T327] team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.668257][ T327] vlan_vid_add+0x2bc/0x860 [ 15.668421][ T327] vlan_device_event+0x2f4/0x2130 [8021q] [ 15.668617][ T327] notifier_call_chain+0xcd/0x150 [ 15.668770][ T327] blocking_notifier_call_chain+0x66/0x90 [ 15.668968][ T327] __dev_notify_flags+0xe6/0x250 [ 15.669133][ T327] dev_change_flags+0xec/0x160 [ 15.669301][ T327] do_setlink.constprop.0+0x79d/0x2300 [ 15.669493][ T327] rtnl_newlink+0x69c/0xa70 [ 15.669644][ T327] rtnetlink_rcv_msg+0x712/0xc10 [ 15.669799][ T327] netlink_rcv_skb+0x130/0x360 [ 15.669953][ T327] netlink_unicast+0x44b/0x710 [ 15.670114][ T327] netlink_sendmsg+0x723/0xbe0 [ 15.670283][ T327] ____sys_sendmsg+0x7ac/0xa10 [ 15.670450][ T327] ___sys_sendmsg+0xee/0x170 [ 15.670617][ T327] __sys_sendmsg+0x109/0x1a0 [ 15.670769][ T327] do_syscall_64+0xc1/0x1d0 [ 15.670920][ T327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.671112][ T327] [ 15.671112][ T327] other info that might help us debug this: [ 15.671112][ T327] [ 15.671415][ T327] Possible unsafe locking scenario: [ 15.671415][ T327] [ 15.671643][ T327] CPU0 CPU1 [ 15.671796][ T327] ---- ---- [ 15.671950][ T327] rlock((netdev_chain).rwsem); [ 15.672103][ T327] lock(team->team_lock_key); [ 15.672338][ T327] lock((netdev_chain).rwsem); [ 15.672564][ T327] lock(team->team_lock_key); [ 15.672715][ T327] [ 15.672715][ T327] *** DEADLOCK *** [ 15.672715][ T327] [ 15.672939][ T327] 2 locks held by ip/327: [ 15.673057][ T327] #0: ffffffffb29e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 15.673332][ T327] #1: ffffffffb29d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 15.673657][ T327] [ 15.673657][ T327] stack backtrace: [ 15.673844][ T327] CPU: 0 UID: 0 PID: 327 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 15.674072][ T327] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.674268][ T327] Call Trace: [ 15.674383][ T327] [ 15.674471][ T327] dump_stack_lvl+0x82/0xd0 [ 15.674633][ T327] print_circular_bug+0x2e2/0x4b0 [ 15.674789][ T327] check_noncircular+0x2f9/0x3e0 [ 15.674942][ T327] ? __pfx_check_noncircular+0x10/0x10 [ 15.675097][ T327] ? rcu_read_lock_any_held+0x43/0xb0 [ 15.675251][ T327] ? validate_chain+0x1fe/0xae0 [ 15.675402][ T327] ? alloc_chain_hlocks+0x4e0/0x720 [ 15.675558][ T327] check_prev_add+0x182/0xce0 [ 15.675710][ T327] validate_chain+0x7bd/0xae0 [ 15.675860][ T327] ? find_held_lock+0x2c/0x110 [ 15.676017][ T327] ? __pfx_validate_chain+0x10/0x10 [ 15.676168][ T327] ? hlock_class+0x4e/0x130 [ 15.676316][ T327] ? mark_lock+0x38/0x3e0 [ 15.676436][ T327] __lock_acquire+0xb9a/0x1680 [ 15.676591][ T327] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 15.676788][ T327] lock_acquire.part.0+0xeb/0x330 [ 15.676940][ T327] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.677093][ T327] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.677243][ T327] ? trace_lock_acquire+0x14c/0x1f0 [ 15.677391][ T327] ? lock_acquire+0x32/0xc0 [ 15.677540][ T327] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.677692][ T327] __mutex_lock+0x169/0xbc0 [ 15.677851][ T327] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.678006][ T327] ? __create_object+0x5e/0xb0 [ 15.678160][ T327] ? __pfx___lock_release+0x10/0x10 [ 15.678309][ T327] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.678472][ T327] ? __pfx___mutex_lock+0x10/0x10 [ 15.678625][ T327] ? mark_held_locks+0x9e/0xe0 [ 15.678776][ T327] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 15.678964][ T327] ? __create_object+0x5e/0xb0 [ 15.679120][ T327] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.679273][ T327] team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.679425][ T327] vlan_vid_add+0x2bc/0x860 [ 15.679579][ T327] vlan_device_event+0x2f4/0x2130 [8021q] [ 15.679741][ T327] ? __pfx_vlan_device_event+0x10/0x10 [8021q] [ 15.679931][ T327] ? packet_notifier+0x3b0/0x810 [ 15.680087][ T327] notifier_call_chain+0xcd/0x150 [ 15.680240][ T327] blocking_notifier_call_chain+0x66/0x90 [ 15.680440][ T327] __dev_notify_flags+0xe6/0x250 [ 15.680681][ T327] ? __pfx___dev_notify_flags+0x10/0x10 [ 15.680920][ T327] ? __pfx___dev_change_flags+0x10/0x10 [ 15.681155][ T327] ? unwind_get_return_address+0x5e/0xa0 [ 15.681392][ T327] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 15.681691][ T327] ? __pfx_validate_chain+0x10/0x10 [ 15.681932][ T327] dev_change_flags+0xec/0x160 [ 15.682170][ T327] do_setlink.constprop.0+0x79d/0x2300 [ 15.682402][ T327] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 15.682697][ T327] ? lock_acquire.part.0+0xeb/0x330 [ 15.682933][ T327] ? rtnl_newlink+0x653/0xa70 [ 15.683167][ T327] ? rtnl_newlink+0xb9/0xa70 [ 15.683417][ T327] ? rtnetlink_rcv_msg+0x712/0xc10 [ 15.683653][ T327] ? __mutex_trylock_common+0xfa/0x260 [ 15.683891][ T327] ? __pfx___mutex_trylock_common+0x10/0x10 [ 15.684182][ T327] ? lock_acquire+0x32/0xc0 [ 15.684417][ T327] ? trace_contention_end+0xef/0x150 [ 15.684653][ T327] ? __mutex_lock+0x190/0xbc0 [ 15.684890][ T327] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 15.685136][ T327] ? rtnl_newlink+0x653/0xa70 [ 15.685372][ T327] ? __pfx___mutex_lock+0x10/0x10 [ 15.685607][ T327] ? __create_object+0x5e/0xb0 [ 15.685843][ T327] ? __rtnl_newlink+0x3f2/0xa80 [ 15.686083][ T327] rtnl_newlink+0x69c/0xa70 [ 15.686316][ T327] ? __pfx_rtnl_newlink+0x10/0x10 [ 15.686551][ T327] ? find_held_lock+0x2c/0x110 [ 15.686788][ T327] ? __pfx___lock_release+0x10/0x10 [ 15.687047][ T327] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.687294][ T327] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 15.687549][ T327] ? __pfx_rtnl_newlink+0x10/0x10 [ 15.687799][ T327] rtnetlink_rcv_msg+0x712/0xc10 [ 15.688048][ T327] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.688299][ T327] ? hlock_class+0x4e/0x130 [ 15.688549][ T327] ? mark_lock+0x38/0x3e0 [ 15.688747][ T327] ? __lock_acquire+0xb9a/0x1680 [ 15.689006][ T327] netlink_rcv_skb+0x130/0x360 [ 15.689255][ T327] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.689507][ T327] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 15.689767][ T327] ? netlink_deliver_tap+0x13e/0x340 [ 15.690025][ T327] ? netlink_deliver_tap+0xc3/0x340 [ 15.690277][ T327] netlink_unicast+0x44b/0x710 [ 15.690548][ T327] ? __pfx_netlink_unicast+0x10/0x10 [ 15.690800][ T327] ? find_held_lock+0x2c/0x110 [ 15.691056][ T327] netlink_sendmsg+0x723/0xbe0 [ 15.691308][ T327] ? __pfx_netlink_sendmsg+0x10/0x10 [ 15.691566][ T327] ____sys_sendmsg+0x7ac/0xa10 [ 15.691819][ T327] ? __pfx_____sys_sendmsg+0x10/0x10 [ 15.692072][ T327] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 15.692402][ T327] ___sys_sendmsg+0xee/0x170 [ 15.692658][ T327] ? __pfx____sys_sendmsg+0x10/0x10 [ 15.692911][ T327] ? kasan_save_stack+0x34/0x50 [ 15.693166][ T327] ? kasan_save_stack+0x24/0x50 [ 15.693417][ T327] ? __kasan_record_aux_stack+0x8e/0xa0 [ 15.693670][ T327] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 15.693986][ T327] ? __x64_sys_close+0x7c/0xd0 [ 15.694249][ T327] ? do_syscall_64+0xc1/0x1d0 [ 15.694498][ T327] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.694818][ T327] ? __lock_acquire+0xb9a/0x1680 [ 15.695077][ T327] ? find_held_lock+0x2c/0x110 [ 15.695329][ T327] ? __lock_release+0x103/0x460 [ 15.695579][ T327] ? __virt_addr_valid+0x22b/0x430 [ 15.695831][ T327] ? __pfx___lock_release+0x10/0x10 [ 15.696095][ T327] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.696351][ T327] __sys_sendmsg+0x109/0x1a0 [ 15.696607][ T327] ? __pfx___sys_sendmsg+0x10/0x10 [ 15.696857][ T327] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 15.697178][ T327] do_syscall_64+0xc1/0x1d0 [ 15.697430][ T327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.697755][ T327] RIP: 0033:0x7f7753f9c9a7 [ 15.698016][ 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 [ 15.698849][ T327] RSP: 002b:00007ffc58c3e288 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.699215][ T327] RAX: ffffffffffffffda RBX: 00007ffc58c3e9b0 RCX: 00007f7753f9c9a7 [ 15.699583][ T327] RDX: 0000000000000000 RSI: 00007ffc58c3e2f0 RDI: 0000000000000005 [ 15.699944][ T327] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 15.700300][ T327] R10: 00007f7753e5aef8 R11: 0000000000000246 R12: 0000000000000003 [ 15.700671][ T327] R13: 00000000677956fe R14: 0000000000498600 R15: 0000000000000000 [ 15.701042][ T327] [ 15.708470][ T327] ip (327) used greatest stack depth: 23264 bytes left [ 15.769451][ T328] 8021q: adding VLAN 0 to HW filter on device lag2 [ 16.063389][ T333] gre: GRE over IPv4 demultiplexor driver [ 16.080548][ T333] ip_gre: GRE over IPv4 tunneling driver [ 17.404740][ T362] lag1: Mode changed to "loadbalance" [ 17.512101][ T365] lag1: Port device veth2 added [ 17.726036][ T368] lag1: Port device veth4 added [ 17.859411][ T370] 8021q: adding VLAN 0 to HW filter on device lag1 [ 23.857696][ T396] Mirror/redirect action on [ 23.996601][ T399] GACT probability NOT on [ 24.079320][ T400] lag2: Port device veth5 removed [ 28.055401][ T410] lag2: Port device veth3 removed [ 32.981971][ T439] lag2: Mode changed to "loadbalance" [ 33.131812][ T442] lag2: Port device veth3 added [ 33.363072][ T448] lag2: Port device veth5 added [ 33.476091][ T450] 8021q: adding VLAN 0 to HW filter on device lag2 [ 33.540631][ T451] 8021q: adding VLAN 0 to HW filter on device lag2 [ 39.678179][ T485] lag2: Port device veth3 removed [ 43.665389][ T495] lag2: Port device veth5 removed [ 48.681426][ T525] lag2: Mode changed to "loadbalance" [ 48.817785][ T528] lag2: Port device veth3 added [ 49.031668][ T533] lag2: Port device veth5 added [ 49.148435][ T535] 8021q: adding VLAN 0 to HW filter on device lag2 [ 49.234167][ T536] 8021q: adding VLAN 0 to HW filter on device lag2 [ 55.352771][ T362] lag1: Port device veth4 removed [ 55.358087][ T362] lag1: Port device veth2 removed [ 56.807783][ T525] lag2: Port device veth5 removed [ 56.810012][ T525] lag2: Port device veth3 removed