[ 10.572673][ T249] ip (249) used greatest stack depth: 24432 bytes left [ 11.288843][ T273] ip (273) used greatest stack depth: 24416 bytes left [ 12.761294][ T294] 8021q: 802.1Q VLAN Support v1.8 [ 14.427450][ T319] lag2: Mode changed to "loadbalance" [ 14.616295][ T322] lag2: Port device veth3 added [ 14.900941][ T325] lag2: Port device veth5 added [ 15.088154][ T327] 8021q: adding VLAN 0 to HW filter on device lag2 [ 15.088661][ T327] [ 15.088747][ T327] ====================================================== [ 15.088943][ T327] WARNING: possible circular locking dependency detected [ 15.089140][ T327] 6.13.0-rc5-virtme #1 Not tainted [ 15.089299][ T327] ------------------------------------------------------ [ 15.089490][ T327] ip/327 is trying to acquire lock: [ 15.089652][ T327] ffff88800d8c2d80 (team->team_lock_key){+.+.}-{4:4}, at: team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.089942][ T327] [ 15.089942][ T327] but task is already holding lock: [ 15.090180][ T327] ffffffffa31d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 15.090501][ T327] [ 15.090501][ T327] which lock already depends on the new lock. [ 15.090501][ T327] [ 15.090805][ T327] [ 15.090805][ T327] the existing dependency chain (in reverse order) is: [ 15.091074][ T327] [ 15.091074][ T327] -> #1 ((netdev_chain).rwsem){++++}-{4:4}: [ 15.091318][ T327] __lock_acquire+0xb9a/0x1680 [ 15.091480][ T327] lock_acquire.part.0+0xeb/0x330 [ 15.091634][ T327] down_read+0x9f/0x340 [ 15.091791][ T327] blocking_notifier_call_chain+0x50/0x90 [ 15.091988][ T327] __dev_open+0x15c/0x430 [ 15.092151][ T327] dev_open+0xc9/0x130 [ 15.092306][ T327] team_port_add+0x90a/0x1ce0 [ 15.092469][ T327] team_add_slave+0x41/0x80 [ 15.092622][ T327] do_setlink.constprop.0+0x80e/0x2300 [ 15.092824][ T327] rtnl_newlink+0x69c/0xa70 [ 15.092977][ T327] rtnetlink_rcv_msg+0x712/0xc10 [ 15.093131][ T327] netlink_rcv_skb+0x130/0x360 [ 15.093287][ T327] netlink_unicast+0x44b/0x710 [ 15.093445][ T327] netlink_sendmsg+0x723/0xbe0 [ 15.093607][ T327] ____sys_sendmsg+0x7ac/0xa10 [ 15.093763][ T327] ___sys_sendmsg+0xee/0x170 [ 15.093920][ T327] __sys_sendmsg+0x109/0x1a0 [ 15.094076][ T327] do_syscall_64+0xc1/0x1d0 [ 15.094234][ T327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.094445][ T327] [ 15.094445][ T327] -> #0 (team->team_lock_key){+.+.}-{4:4}: [ 15.094703][ T327] check_prev_add+0x182/0xce0 [ 15.094871][ T327] validate_chain+0x7bd/0xae0 [ 15.095025][ T327] __lock_acquire+0xb9a/0x1680 [ 15.095179][ T327] lock_acquire.part.0+0xeb/0x330 [ 15.095336][ T327] __mutex_lock+0x169/0xbc0 [ 15.095489][ T327] team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.095644][ T327] vlan_vid_add+0x2bc/0x860 [ 15.095803][ T327] vlan_device_event+0x2f4/0x2130 [8021q] [ 15.096002][ T327] notifier_call_chain+0xcd/0x150 [ 15.096159][ T327] blocking_notifier_call_chain+0x66/0x90 [ 15.096358][ T327] __dev_notify_flags+0xe6/0x250 [ 15.096514][ T327] dev_change_flags+0xec/0x160 [ 15.096669][ T327] do_setlink.constprop.0+0x79d/0x2300 [ 15.096864][ T327] rtnl_newlink+0x69c/0xa70 [ 15.097020][ T327] rtnetlink_rcv_msg+0x712/0xc10 [ 15.097174][ T327] netlink_rcv_skb+0x130/0x360 [ 15.097328][ T327] netlink_unicast+0x44b/0x710 [ 15.097478][ T327] netlink_sendmsg+0x723/0xbe0 [ 15.097644][ T327] ____sys_sendmsg+0x7ac/0xa10 [ 15.097801][ T327] ___sys_sendmsg+0xee/0x170 [ 15.097956][ T327] __sys_sendmsg+0x109/0x1a0 [ 15.098108][ T327] do_syscall_64+0xc1/0x1d0 [ 15.098258][ T327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.098459][ T327] [ 15.098459][ T327] other info that might help us debug this: [ 15.098459][ T327] [ 15.098756][ T327] Possible unsafe locking scenario: [ 15.098756][ T327] [ 15.098982][ T327] CPU0 CPU1 [ 15.099137][ T327] ---- ---- [ 15.099289][ T327] rlock((netdev_chain).rwsem); [ 15.099450][ T327] lock(team->team_lock_key); [ 15.099684][ T327] lock((netdev_chain).rwsem); [ 15.099911][ T327] lock(team->team_lock_key); [ 15.100065][ T327] [ 15.100065][ T327] *** DEADLOCK *** [ 15.100065][ T327] [ 15.100290][ T327] 2 locks held by ip/327: [ 15.100409][ T327] #0: ffffffffa31e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 15.100693][ T327] #1: ffffffffa31d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 15.101006][ T327] [ 15.101006][ T327] stack backtrace: [ 15.101193][ T327] CPU: 0 UID: 0 PID: 327 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 15.101431][ T327] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.101627][ T327] Call Trace: [ 15.101745][ T327] [ 15.101825][ T327] dump_stack_lvl+0x82/0xd0 [ 15.102000][ T327] print_circular_bug+0x2e2/0x4b0 [ 15.102157][ T327] check_noncircular+0x2f9/0x3e0 [ 15.102315][ T327] ? __pfx_check_noncircular+0x10/0x10 [ 15.102486][ T327] ? rcu_read_lock_any_held+0x43/0xb0 [ 15.102653][ T327] ? validate_chain+0x1fe/0xae0 [ 15.102828][ T327] ? alloc_chain_hlocks+0x4e0/0x720 [ 15.102995][ T327] check_prev_add+0x182/0xce0 [ 15.103163][ T327] validate_chain+0x7bd/0xae0 [ 15.103331][ T327] ? find_held_lock+0x2c/0x110 [ 15.103504][ T327] ? __pfx_validate_chain+0x10/0x10 [ 15.103669][ T327] ? hlock_class+0x4e/0x130 [ 15.103836][ T327] ? mark_lock+0x38/0x3e0 [ 15.103954][ T327] __lock_acquire+0xb9a/0x1680 [ 15.104125][ T327] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 15.104337][ T327] lock_acquire.part.0+0xeb/0x330 [ 15.104506][ T327] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.104676][ T327] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.104845][ T327] ? trace_lock_acquire+0x14c/0x1f0 [ 15.105009][ T327] ? lock_acquire+0x32/0xc0 [ 15.105175][ T327] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.105351][ T327] __mutex_lock+0x169/0xbc0 [ 15.105520][ T327] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.105688][ T327] ? __create_object+0x5e/0xb0 [ 15.105860][ T327] ? __pfx___lock_release+0x10/0x10 [ 15.106026][ T327] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.106195][ T327] ? __pfx___mutex_lock+0x10/0x10 [ 15.106363][ T327] ? mark_held_locks+0x9e/0xe0 [ 15.106535][ T327] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 15.106741][ T327] ? __create_object+0x5e/0xb0 [ 15.106909][ T327] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.107077][ T327] team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.107247][ T327] vlan_vid_add+0x2bc/0x860 [ 15.107419][ T327] vlan_device_event+0x2f4/0x2130 [8021q] [ 15.107593][ T327] ? __pfx_vlan_device_event+0x10/0x10 [8021q] [ 15.107817][ T327] ? packet_notifier+0x3b0/0x810 [ 15.107998][ T327] notifier_call_chain+0xcd/0x150 [ 15.108169][ T327] blocking_notifier_call_chain+0x66/0x90 [ 15.108335][ T327] __dev_notify_flags+0xe6/0x250 [ 15.108503][ T327] ? __pfx___dev_notify_flags+0x10/0x10 [ 15.108670][ T327] ? __pfx___dev_change_flags+0x10/0x10 [ 15.108838][ T327] ? unwind_get_return_address+0x5e/0xa0 [ 15.109013][ T327] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 15.109221][ T327] ? __pfx_validate_chain+0x10/0x10 [ 15.109388][ T327] dev_change_flags+0xec/0x160 [ 15.109555][ T327] do_setlink.constprop.0+0x79d/0x2300 [ 15.109725][ T327] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 15.109934][ T327] ? lock_acquire.part.0+0xeb/0x330 [ 15.110101][ T327] ? rtnl_newlink+0x653/0xa70 [ 15.110272][ T327] ? rtnl_newlink+0xb9/0xa70 [ 15.110435][ T327] ? rtnetlink_rcv_msg+0x712/0xc10 [ 15.110602][ T327] ? __mutex_trylock_common+0xfa/0x260 [ 15.110768][ T327] ? __pfx___mutex_trylock_common+0x10/0x10 [ 15.110976][ T327] ? lock_acquire+0x32/0xc0 [ 15.111139][ T327] ? trace_contention_end+0xef/0x150 [ 15.111308][ T327] ? __mutex_lock+0x190/0xbc0 [ 15.111477][ T327] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 15.111642][ T327] ? rtnl_newlink+0x653/0xa70 [ 15.111806][ T327] ? __pfx___mutex_lock+0x10/0x10 [ 15.111973][ T327] ? __create_object+0x5e/0xb0 [ 15.112140][ T327] ? __rtnl_newlink+0x3f2/0xa80 [ 15.112310][ T327] rtnl_newlink+0x69c/0xa70 [ 15.112476][ T327] ? __pfx_rtnl_newlink+0x10/0x10 [ 15.112648][ T327] ? find_held_lock+0x2c/0x110 [ 15.112818][ T327] ? __pfx___lock_release+0x10/0x10 [ 15.112986][ T327] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.113153][ T327] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 15.113320][ T327] ? __pfx_rtnl_newlink+0x10/0x10 [ 15.113488][ T327] rtnetlink_rcv_msg+0x712/0xc10 [ 15.113656][ T327] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.113827][ T327] ? hlock_class+0x4e/0x130 [ 15.113992][ T327] ? mark_lock+0x38/0x3e0 [ 15.114120][ T327] ? __lock_acquire+0xb9a/0x1680 [ 15.114289][ T327] netlink_rcv_skb+0x130/0x360 [ 15.114461][ T327] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.114626][ T327] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 15.114794][ T327] ? netlink_deliver_tap+0x13e/0x340 [ 15.114960][ T327] ? netlink_deliver_tap+0xc3/0x340 [ 15.115134][ T327] netlink_unicast+0x44b/0x710 [ 15.115303][ T327] ? __pfx_netlink_unicast+0x10/0x10 [ 15.115471][ T327] ? find_held_lock+0x2c/0x110 [ 15.115640][ T327] netlink_sendmsg+0x723/0xbe0 [ 15.115811][ T327] ? __pfx_netlink_sendmsg+0x10/0x10 [ 15.115989][ T327] ____sys_sendmsg+0x7ac/0xa10 [ 15.116163][ T327] ? __pfx_____sys_sendmsg+0x10/0x10 [ 15.116340][ T327] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 15.116551][ T327] ___sys_sendmsg+0xee/0x170 [ 15.116721][ T327] ? __pfx____sys_sendmsg+0x10/0x10 [ 15.116889][ T327] ? kasan_save_stack+0x34/0x50 [ 15.117059][ T327] ? kasan_save_stack+0x24/0x50 [ 15.117227][ T327] ? __kasan_record_aux_stack+0x8e/0xa0 [ 15.117395][ T327] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 15.117621][ T327] ? __x64_sys_close+0x7c/0xd0 [ 15.117791][ T327] ? do_syscall_64+0xc1/0x1d0 [ 15.117958][ T327] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.118169][ T327] ? __lock_acquire+0xb9a/0x1680 [ 15.118339][ T327] ? find_held_lock+0x2c/0x110 [ 15.118504][ T327] ? __lock_release+0x103/0x460 [ 15.118670][ T327] ? __virt_addr_valid+0x22b/0x430 [ 15.118842][ T327] ? __pfx___lock_release+0x10/0x10 [ 15.119010][ T327] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.119178][ T327] __sys_sendmsg+0x109/0x1a0 [ 15.119348][ T327] ? __pfx___sys_sendmsg+0x10/0x10 [ 15.119514][ T327] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 15.119730][ T327] do_syscall_64+0xc1/0x1d0 [ 15.119897][ T327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.120114][ T327] RIP: 0033:0x7f532e56c9a7 [ 15.120297][ 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 [ 15.120885][ T327] RSP: 002b:00007fff2cb44018 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.121140][ T327] RAX: ffffffffffffffda RBX: 00007fff2cb44740 RCX: 00007f532e56c9a7 [ 15.121392][ T327] RDX: 0000000000000000 RSI: 00007fff2cb44080 RDI: 0000000000000005 [ 15.121644][ T327] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 15.121912][ T327] R10: 00007f532e42aef8 R11: 0000000000000246 R12: 0000000000000003 [ 15.122173][ T327] R13: 0000000067792e67 R14: 0000000000498600 R15: 0000000000000000 [ 15.122435][ T327] [ 15.128861][ T327] ip (327) used greatest stack depth: 23328 bytes left [ 15.177690][ T328] 8021q: adding VLAN 0 to HW filter on device lag2 [ 15.492433][ T333] gre: GRE over IPv4 demultiplexor driver [ 15.506611][ T333] ip_gre: GRE over IPv4 tunneling driver [ 16.813312][ T361] lag1: Mode changed to "loadbalance" [ 16.957325][ T364] lag1: Port device veth2 added [ 17.173135][ T367] lag1: Port device veth4 added [ 17.301511][ T369] 8021q: adding VLAN 0 to HW filter on device lag1 [ 23.247203][ T395] Mirror/redirect action on [ 23.429248][ T398] GACT probability NOT on [ 23.511177][ T399] lag2: Port device veth5 removed [ 27.509177][ T409] lag2: Port device veth3 removed [ 32.349125][ T439] lag2: Mode changed to "loadbalance" [ 32.480413][ T442] lag2: Port device veth3 added [ 32.708881][ T447] lag2: Port device veth5 added [ 32.839823][ T449] 8021q: adding VLAN 0 to HW filter on device lag2 [ 32.896420][ T450] 8021q: adding VLAN 0 to HW filter on device lag2 [ 38.966488][ T485] lag2: Port device veth3 removed [ 42.913625][ T495] lag2: Port device veth5 removed [ 47.838245][ T525] lag2: Mode changed to "loadbalance" [ 47.976415][ T528] lag2: Port device veth3 added [ 48.220732][ T533] lag2: Port device veth5 added [ 48.365034][ T535] 8021q: adding VLAN 0 to HW filter on device lag2 [ 48.440874][ T536] 8021q: adding VLAN 0 to HW filter on device lag2 [ 54.463493][ T361] lag1: Port device veth4 removed [ 54.468619][ T361] lag1: Port device veth2 removed [ 55.969014][ T525] lag2: Port device veth5 removed [ 55.971737][ T525] lag2: Port device veth3 removed