[ 97.535306][ T1077] lag2: Mode changed to "loadbalance" [ 97.717569][ T1080] [ 97.717702][ T1080] ====================================================== [ 97.717915][ T1080] WARNING: possible circular locking dependency detected [ 97.718121][ T1080] 6.14.0-rc2-virtme #1 Not tainted [ 97.718287][ T1080] ------------------------------------------------------ [ 97.718496][ T1080] ip/1080 is trying to acquire lock: [ 97.718664][ T1080] ffff8880055accb0 (&dev->lock){+.+.}-{4:4}, at: __dev_open+0x57e/0x710 [ 97.718921][ T1080] [ 97.718921][ T1080] but task is already holding lock: [ 97.719176][ T1080] ffff88800a6fad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave+0x33/0x80 [ 97.719474][ T1080] [ 97.719474][ T1080] which lock already depends on the new lock. [ 97.719474][ T1080] [ 97.719806][ T1080] [ 97.719806][ T1080] the existing dependency chain (in reverse order) is: [ 97.720084][ T1080] [ 97.720084][ T1080] -> #1 (team->team_lock_key){+.+.}-{4:4}: [ 97.720339][ T1080] __lock_acquire+0xb9a/0x1680 [ 97.720514][ T1080] lock_acquire.part.0+0xeb/0x330 [ 97.720680][ T1080] __mutex_lock+0x169/0xc40 [ 97.720847][ T1080] team_set_mac_address+0x120/0x250 [ 97.721013][ T1080] netif_set_mac_address+0x28a/0x410 [ 97.721217][ T1080] do_setlink.constprop.0+0x1980/0x25f0 [ 97.721423][ T1080] rtnl_setlink+0x2b5/0x5a0 [ 97.721593][ T1080] rtnetlink_rcv_msg+0x712/0xc10 [ 97.721751][ T1080] netlink_rcv_skb+0x130/0x360 [ 97.721912][ T1080] netlink_unicast+0x44b/0x710 [ 97.722073][ T1080] netlink_sendmsg+0x723/0xbe0 [ 97.722239][ T1080] __sys_sendto+0x3c3/0x450 [ 97.722409][ T1080] __x64_sys_sendto+0xe0/0x1c0 [ 97.722575][ T1080] do_syscall_64+0xc1/0x1d0 [ 97.722753][ T1080] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 97.722965][ T1080] [ 97.722965][ T1080] -> #0 (&dev->lock){+.+.}-{4:4}: [ 97.723215][ T1080] check_prev_add+0x182/0xce0 [ 97.723384][ T1080] validate_chain+0x7bd/0xae0 [ 97.723547][ T1080] __lock_acquire+0xb9a/0x1680 [ 97.723713][ T1080] lock_acquire.part.0+0xeb/0x330 [ 97.723880][ T1080] __mutex_lock+0x169/0xc40 [ 97.724042][ T1080] __dev_open+0x57e/0x710 [ 97.724203][ T1080] netif_open+0xc9/0x130 [ 97.724369][ T1080] dev_open+0x9f/0x1a0 [ 97.724532][ T1080] team_port_add+0x90a/0x1ce0 [ 97.724693][ T1080] team_add_slave+0x41/0x80 [ 97.724859][ T1080] do_set_master+0x302/0x610 [ 97.725027][ T1080] do_setlink.constprop.0+0x87b/0x25f0 [ 97.725232][ T1080] rtnl_newlink+0x69c/0xa70 [ 97.725396][ T1080] rtnetlink_rcv_msg+0x712/0xc10 [ 97.725569][ T1080] netlink_rcv_skb+0x130/0x360 [ 97.725741][ T1080] netlink_unicast+0x44b/0x710 [ 97.725906][ T1080] netlink_sendmsg+0x723/0xbe0 [ 97.726064][ T1080] ____sys_sendmsg+0x7ac/0xa10 [ 97.726230][ T1080] ___sys_sendmsg+0xee/0x170 [ 97.726397][ T1080] __sys_sendmsg+0x109/0x1a0 [ 97.726562][ T1080] do_syscall_64+0xc1/0x1d0 [ 97.726726][ T1080] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 97.726932][ T1080] [ 97.726932][ T1080] other info that might help us debug this: [ 97.726932][ T1080] [ 97.727248][ T1080] Possible unsafe locking scenario: [ 97.727248][ T1080] [ 97.727493][ T1080] CPU0 CPU1 [ 97.727657][ T1080] ---- ---- [ 97.727821][ T1080] lock(team->team_lock_key); [ 97.727989][ T1080] lock(&dev->lock); [ 97.728192][ T1080] lock(team->team_lock_key); [ 97.728444][ T1080] lock(&dev->lock); [ 97.728575][ T1080] [ 97.728575][ T1080] *** DEADLOCK *** [ 97.728575][ T1080] [ 97.728821][ T1080] 2 locks held by ip/1080: [ 97.728990][ T1080] #0: ffffffffa7deeb48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 97.729287][ T1080] #1: ffff88800a6fad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave+0x33/0x80 [ 97.729587][ T1080] [ 97.729587][ T1080] stack backtrace: [ 97.729805][ T1080] CPU: 2 UID: 0 PID: 1080 Comm: ip Not tainted 6.14.0-rc2-virtme #1 [ 97.729809][ T1080] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 97.729811][ T1080] Call Trace: [ 97.729813][ T1080] [ 97.729814][ T1080] dump_stack_lvl+0x82/0xd0 [ 97.729821][ T1080] print_circular_bug+0x1b7/0x240 [ 97.729826][ T1080] check_noncircular+0x2f9/0x3e0 [ 97.729829][ T1080] ? __pfx_check_noncircular+0x10/0x10 [ 97.729833][ T1080] ? find_held_lock+0x2c/0x110 [ 97.729839][ T1080] ? alloc_chain_hlocks+0x4e0/0x720 [ 97.729843][ T1080] check_prev_add+0x182/0xce0 [ 97.729848][ T1080] validate_chain+0x7bd/0xae0 [ 97.729852][ T1080] ? stack_depot_save_flags+0x27e/0x440 [ 97.729858][ T1080] ? __pfx_validate_chain+0x10/0x10 [ 97.729861][ T1080] ? hlock_class+0x4e/0x130 [ 97.729863][ T1080] ? mark_lock+0x38/0x3e0 [ 97.729867][ T1080] __lock_acquire+0xb9a/0x1680 [ 97.729871][ T1080] ? mark_lock+0x38/0x3e0 [ 97.729875][ T1080] lock_acquire.part.0+0xeb/0x330 [ 97.729878][ T1080] ? __dev_open+0x57e/0x710 [ 97.729881][ T1080] ? validate_chain+0x162/0xae0 [ 97.729884][ T1080] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 97.729887][ T1080] ? trace_lock_acquire+0x14c/0x1f0 [ 97.729890][ T1080] ? lock_acquire+0x32/0xc0 [ 97.729893][ T1080] ? __dev_open+0x57e/0x710 [ 97.729896][ T1080] __mutex_lock+0x169/0xc40 [ 97.729898][ T1080] ? __dev_open+0x57e/0x710 [ 97.729901][ T1080] ? __dev_open+0x57e/0x710 [ 97.729904][ T1080] ? __pfx___mutex_lock+0x10/0x10 [ 97.729909][ T1080] ? packet_notifier+0x3b0/0x810 [ 97.729916][ T1080] ? __dev_open+0x57e/0x710 [ 97.729918][ T1080] __dev_open+0x57e/0x710 [ 97.729920][ T1080] ? mark_held_locks+0x9e/0xe0 [ 97.729923][ T1080] ? __pfx___dev_open+0x10/0x10 [ 97.729926][ T1080] ? trace_percpu_alloc_percpu+0x149/0x1d0 [ 97.729932][ T1080] netif_open+0xc9/0x130 [ 97.729934][ T1080] ? __pfx_netif_open+0x10/0x10 [ 97.729938][ T1080] dev_open+0x9f/0x1a0 [ 97.729942][ T1080] team_port_add+0x90a/0x1ce0 [ 97.729947][ T1080] ? __pfx_team_port_add+0x10/0x10 [ 97.729950][ T1080] ? rcu_read_lock_any_held+0x43/0xb0 [ 97.729955][ T1080] ? validate_chain+0x1fe/0xae0 [ 97.729959][ T1080] team_add_slave+0x41/0x80 [ 97.729964][ T1080] do_set_master+0x302/0x610 [ 97.729968][ T1080] do_setlink.constprop.0+0x87b/0x25f0 [ 97.729972][ T1080] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 97.729976][ T1080] ? lock_acquire.part.0+0xeb/0x330 [ 97.729979][ T1080] ? rtnl_newlink+0x653/0xa70 [ 97.729982][ T1080] ? rtnl_newlink+0xb9/0xa70 [ 97.729985][ T1080] ? rtnetlink_rcv_msg+0x712/0xc10 [ 97.729988][ T1080] ? __mutex_trylock_common+0xfa/0x260 [ 97.729992][ T1080] ? __pfx___mutex_trylock_common+0x10/0x10 [ 97.729995][ T1080] ? lock_acquire+0x32/0xc0 [ 97.729999][ T1080] ? trace_contention_end+0xef/0x150 [ 97.730002][ T1080] ? __mutex_lock+0x190/0xc40 [ 97.730005][ T1080] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 97.730008][ T1080] ? rtnl_newlink+0x653/0xa70 [ 97.730012][ T1080] ? __pfx___mutex_lock+0x10/0x10 [ 97.730014][ T1080] ? __pfx_validate_nla+0x10/0x10 [ 97.730018][ T1080] ? trace_cap_capable+0x11e/0x1a0 [ 97.730024][ T1080] ? __rtnl_newlink+0x3f2/0xa80 [ 97.730028][ T1080] rtnl_newlink+0x69c/0xa70 [ 97.730032][ T1080] ? __pfx_rtnl_newlink+0x10/0x10 [ 97.730035][ T1080] ? find_held_lock+0x2c/0x110 [ 97.730039][ T1080] ? __pfx___lock_release+0x10/0x10 [ 97.730042][ T1080] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 97.730047][ T1080] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 97.730050][ T1080] ? __pfx_rtnl_newlink+0x10/0x10 [ 97.730053][ T1080] rtnetlink_rcv_msg+0x712/0xc10 [ 97.730056][ T1080] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 97.730059][ T1080] ? hlock_class+0x4e/0x130 [ 97.730061][ T1080] ? mark_lock+0x38/0x3e0 [ 97.730065][ T1080] ? __lock_acquire+0xb9a/0x1680 [ 97.730069][ T1080] netlink_rcv_skb+0x130/0x360 [ 97.730072][ T1080] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 97.730076][ T1080] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 97.730083][ T1080] ? netlink_deliver_tap+0x13e/0x340 [ 97.730086][ T1080] ? netlink_deliver_tap+0xc3/0x340 [ 97.730090][ T1080] netlink_unicast+0x44b/0x710 [ 97.730094][ T1080] ? __pfx_netlink_unicast+0x10/0x10 [ 97.730097][ T1080] ? find_held_lock+0x2c/0x110 [ 97.730102][ T1080] netlink_sendmsg+0x723/0xbe0 [ 97.730106][ T1080] ? __pfx_netlink_sendmsg+0x10/0x10 [ 97.730112][ T1080] ____sys_sendmsg+0x7ac/0xa10 [ 97.730116][ T1080] ? __pfx_____sys_sendmsg+0x10/0x10 [ 97.730118][ T1080] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 97.730125][ T1080] ___sys_sendmsg+0xee/0x170 [ 97.730129][ T1080] ? __pfx____sys_sendmsg+0x10/0x10 [ 97.730133][ T1080] ? kasan_save_stack+0x34/0x50 [ 97.730137][ T1080] ? kasan_save_stack+0x24/0x50 [ 97.730140][ T1080] ? kasan_record_aux_stack+0x8c/0xa0 [ 97.730143][ T1080] ? __call_rcu_common.constprop.0+0xa1/0x5b0 [ 97.730146][ T1080] ? __x64_sys_close+0x7c/0xd0 [ 97.730150][ T1080] ? do_syscall_64+0xc1/0x1d0 [ 97.730152][ T1080] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 97.730155][ T1080] ? __lock_acquire+0xb9a/0x1680 [ 97.730158][ T1080] ? lock_downgrade+0x52/0x110 [ 97.730162][ T1080] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 97.730165][ T1080] ? find_held_lock+0x2c/0x110 [ 97.730169][ T1080] ? __lock_release+0x103/0x460 [ 97.730172][ T1080] ? __virt_addr_valid+0x22b/0x430 [ 97.730176][ T1080] ? __pfx___lock_release+0x10/0x10 [ 97.730179][ T1080] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 97.730183][ T1080] __sys_sendmsg+0x109/0x1a0 [ 97.730187][ T1080] ? __pfx___sys_sendmsg+0x10/0x10 [ 97.730195][ T1080] do_syscall_64+0xc1/0x1d0 [ 97.730197][ T1080] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 97.730200][ T1080] RIP: 0033:0x7fb6258469a7 [ 97.730204][ T1080] 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 [ 97.730208][ T1080] RSP: 002b:00007fff979965e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 97.730211][ T1080] RAX: ffffffffffffffda RBX: 00007fff97996d10 RCX: 00007fb6258469a7 [ 97.730213][ T1080] RDX: 0000000000000000 RSI: 00007fff97996650 RDI: 0000000000000005 [ 97.730215][ T1080] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 97.730216][ T1080] R10: 000000001bb21910 R11: 0000000000000246 R12: 0000000000000004 [ 97.730218][ T1080] R13: 0000000067b32d34 R14: 0000000000498600 R15: 0000000000000000 [ 97.730223][ T1080] [ 97.751984][ T1080] lag2: Port device veth3 added [ 97.949073][ T1091] lag2: Port device veth5 added [ 98.054555][ T1093] 8021q: adding VLAN 0 to HW filter on device lag2 [ 98.115877][ T1094] 8021q: adding VLAN 0 to HW filter on device lag2 [ 98.411292][ T1099] gre: GRE over IPv4 demultiplexor driver [ 98.427399][ T1099] ip_gre: GRE over IPv4 tunneling driver [ 99.708797][ T1126] lag1: Mode changed to "loadbalance" [ 99.819403][ T1129] lag1: Port device veth2 added [ 100.020457][ T1132] lag1: Port device veth4 added [ 100.142641][ T1134] 8021q: adding VLAN 0 to HW filter on device lag1 [ 106.058545][ T1160] Mirror/redirect action on [ 106.196961][ T1164] GACT probability NOT on [ 106.267803][ T1165] lag2: Port device veth5 removed [ 110.177502][ T1175] lag2: Port device veth3 removed [ 114.974722][ T1205] lag2: Mode changed to "loadbalance" [ 115.105927][ T1208] lag2: Port device veth3 added [ 115.323523][ T1213] lag2: Port device veth5 added [ 115.439522][ T1215] 8021q: adding VLAN 0 to HW filter on device lag2 [ 115.510161][ T1216] 8021q: adding VLAN 0 to HW filter on device lag2 [ 121.575566][ T1250] lag2: Port device veth3 removed [ 125.510269][ T1260] lag2: Port device veth5 removed [ 130.349293][ T1290] lag2: Mode changed to "loadbalance" [ 130.485115][ T1293] lag2: Port device veth3 added [ 130.680684][ T1298] lag2: Port device veth5 added [ 130.796593][ T1300] 8021q: adding VLAN 0 to HW filter on device lag2 [ 130.866257][ T1301] 8021q: adding VLAN 0 to HW filter on device lag2 [ 136.831316][ T1126] lag1: Port device veth4 removed [ 136.841698][ T1126] lag1: Port device veth2 removed [ 138.211718][ T1290] lag2: Port device veth5 removed [ 138.213939][ T1290] lag2: Port device veth3 removed