[ 155.545700][ T1165] lag2: Mode changed to "loadbalance" [ 155.730189][ T1168] [ 155.730322][ T1168] ====================================================== [ 155.730613][ T1168] WARNING: possible circular locking dependency detected [ 155.730918][ T1168] 6.14.0-rc2-virtme #1 Not tainted [ 155.731164][ T1168] ------------------------------------------------------ [ 155.731455][ T1168] ip/1168 is trying to acquire lock: [ 155.731697][ T1168] ffff888007001cb0 (&dev->lock){+.+.}-{4:4}, at: __dev_open+0x57e/0x710 [ 155.732087][ T1168] [ 155.732087][ T1168] but task is already holding lock: [ 155.732436][ T1168] ffff8880054f2d80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave+0x33/0x80 [ 155.732877][ T1168] [ 155.732877][ T1168] which lock already depends on the new lock. [ 155.732877][ T1168] [ 155.733361][ T1168] [ 155.733361][ T1168] the existing dependency chain (in reverse order) is: [ 155.733766][ T1168] [ 155.733766][ T1168] -> #1 (team->team_lock_key){+.+.}-{4:4}: [ 155.734127][ T1168] __lock_acquire+0xb9a/0x1680 [ 155.734372][ T1168] lock_acquire.part.0+0xeb/0x330 [ 155.734609][ T1168] __mutex_lock+0x169/0xc40 [ 155.734847][ T1168] team_set_mac_address+0x120/0x250 [ 155.735116][ T1168] netif_set_mac_address+0x28a/0x410 [ 155.735422][ T1168] do_setlink.constprop.0+0x1980/0x25f0 [ 155.735710][ T1168] rtnl_setlink+0x2b5/0x5a0 [ 155.735942][ T1168] rtnetlink_rcv_msg+0x712/0xc10 [ 155.736175][ T1168] netlink_rcv_skb+0x130/0x360 [ 155.736410][ T1168] netlink_unicast+0x44b/0x710 [ 155.736650][ T1168] netlink_sendmsg+0x723/0xbe0 [ 155.736882][ T1168] __sys_sendto+0x3c3/0x450 [ 155.737115][ T1168] __x64_sys_sendto+0xe0/0x1c0 [ 155.737349][ T1168] do_syscall_64+0xc1/0x1d0 [ 155.737582][ T1168] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 155.737871][ T1168] [ 155.737871][ T1168] -> #0 (&dev->lock){+.+.}-{4:4}: [ 155.738229][ T1168] check_prev_add+0x182/0xce0 [ 155.738474][ T1168] validate_chain+0x7bd/0xae0 [ 155.738725][ T1168] __lock_acquire+0xb9a/0x1680 [ 155.738959][ T1168] lock_acquire.part.0+0xeb/0x330 [ 155.739195][ T1168] __mutex_lock+0x169/0xc40 [ 155.739433][ T1168] __dev_open+0x57e/0x710 [ 155.739664][ T1168] netif_open+0xc9/0x130 [ 155.739928][ T1168] dev_open+0x9f/0x1a0 [ 155.740174][ T1168] team_port_add+0x90a/0x1ce0 [ 155.740413][ T1168] team_add_slave+0x41/0x80 [ 155.740651][ T1168] do_set_master+0x302/0x610 [ 155.740890][ T1168] do_setlink.constprop.0+0x87b/0x25f0 [ 155.741182][ T1168] rtnl_newlink+0x69c/0xa70 [ 155.741421][ T1168] rtnetlink_rcv_msg+0x712/0xc10 [ 155.741658][ T1168] netlink_rcv_skb+0x130/0x360 [ 155.741902][ T1168] netlink_unicast+0x44b/0x710 [ 155.742155][ T1168] netlink_sendmsg+0x723/0xbe0 [ 155.742397][ T1168] ____sys_sendmsg+0x7ac/0xa10 [ 155.742628][ T1168] ___sys_sendmsg+0xee/0x170 [ 155.742864][ T1168] __sys_sendmsg+0x109/0x1a0 [ 155.743097][ T1168] do_syscall_64+0xc1/0x1d0 [ 155.743335][ T1168] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 155.743626][ T1168] [ 155.743626][ T1168] other info that might help us debug this: [ 155.743626][ T1168] [ 155.744078][ T1168] Possible unsafe locking scenario: [ 155.744078][ T1168] [ 155.744425][ T1168] CPU0 CPU1 [ 155.744656][ T1168] ---- ---- [ 155.744947][ T1168] lock(team->team_lock_key); [ 155.745202][ T1168] lock(&dev->lock); [ 155.745495][ T1168] lock(team->team_lock_key); [ 155.745848][ T1168] lock(&dev->lock); [ 155.746030][ T1168] [ 155.746030][ T1168] *** DEADLOCK *** [ 155.746030][ T1168] [ 155.746373][ T1168] 2 locks held by ip/1168: [ 155.746609][ T1168] #0: ffffffff8a9eeb48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 155.747035][ T1168] #1: ffff8880054f2d80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave+0x33/0x80 [ 155.747472][ T1168] [ 155.747472][ T1168] stack backtrace: [ 155.747763][ T1168] CPU: 1 UID: 0 PID: 1168 Comm: ip Not tainted 6.14.0-rc2-virtme #1 [ 155.747771][ T1168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 155.747773][ T1168] Call Trace: [ 155.747776][ T1168] [ 155.747778][ T1168] dump_stack_lvl+0x82/0xd0 [ 155.747787][ T1168] print_circular_bug+0x1b7/0x240 [ 155.747795][ T1168] check_noncircular+0x2f9/0x3e0 [ 155.747802][ T1168] ? __pfx_check_noncircular+0x10/0x10 [ 155.747809][ T1168] ? find_held_lock+0x2c/0x110 [ 155.747819][ T1168] ? alloc_chain_hlocks+0x4e0/0x720 [ 155.747825][ T1168] check_prev_add+0x182/0xce0 [ 155.747834][ T1168] validate_chain+0x7bd/0xae0 [ 155.747842][ T1168] ? stack_depot_save_flags+0x27e/0x440 [ 155.747849][ T1168] ? __pfx_validate_chain+0x10/0x10 [ 155.747854][ T1168] ? hlock_class+0x4e/0x130 [ 155.747858][ T1168] ? mark_lock+0x38/0x3e0 [ 155.747865][ T1168] __lock_acquire+0xb9a/0x1680 [ 155.747873][ T1168] ? mark_lock+0x38/0x3e0 [ 155.747879][ T1168] lock_acquire.part.0+0xeb/0x330 [ 155.747884][ T1168] ? __dev_open+0x57e/0x710 [ 155.747890][ T1168] ? validate_chain+0x162/0xae0 [ 155.747895][ T1168] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 155.747901][ T1168] ? trace_lock_acquire+0x14c/0x1f0 [ 155.747907][ T1168] ? lock_acquire+0x32/0xc0 [ 155.747911][ T1168] ? __dev_open+0x57e/0x710 [ 155.747917][ T1168] __mutex_lock+0x169/0xc40 [ 155.747922][ T1168] ? __dev_open+0x57e/0x710 [ 155.747927][ T1168] ? __dev_open+0x57e/0x710 [ 155.747931][ T1168] ? __pfx___mutex_lock+0x10/0x10 [ 155.747938][ T1168] ? packet_notifier+0x3b0/0x810 [ 155.747945][ T1168] ? __dev_open+0x57e/0x710 [ 155.747947][ T1168] __dev_open+0x57e/0x710 [ 155.747949][ T1168] ? mark_held_locks+0x9e/0xe0 [ 155.747952][ T1168] ? __pfx___dev_open+0x10/0x10 [ 155.747955][ T1168] ? trace_percpu_alloc_percpu+0x149/0x1d0 [ 155.747961][ T1168] netif_open+0xc9/0x130 [ 155.747964][ T1168] ? __pfx_netif_open+0x10/0x10 [ 155.747968][ T1168] dev_open+0x9f/0x1a0 [ 155.747972][ T1168] team_port_add+0x90a/0x1ce0 [ 155.747977][ T1168] ? __pfx_team_port_add+0x10/0x10 [ 155.747981][ T1168] ? rcu_read_lock_any_held+0x43/0xb0 [ 155.747986][ T1168] ? validate_chain+0x1fe/0xae0 [ 155.747990][ T1168] team_add_slave+0x41/0x80 [ 155.747994][ T1168] do_set_master+0x302/0x610 [ 155.747999][ T1168] do_setlink.constprop.0+0x87b/0x25f0 [ 155.748003][ T1168] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 155.748007][ T1168] ? lock_acquire.part.0+0xeb/0x330 [ 155.748010][ T1168] ? rtnl_newlink+0x653/0xa70 [ 155.748013][ T1168] ? rtnl_newlink+0xb9/0xa70 [ 155.748016][ T1168] ? rtnetlink_rcv_msg+0x712/0xc10 [ 155.748019][ T1168] ? __mutex_trylock_common+0xfa/0x260 [ 155.748022][ T1168] ? __pfx___mutex_trylock_common+0x10/0x10 [ 155.748026][ T1168] ? lock_acquire+0x32/0xc0 [ 155.748029][ T1168] ? trace_contention_end+0xef/0x150 [ 155.748032][ T1168] ? __mutex_lock+0x190/0xc40 [ 155.748035][ T1168] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 155.748039][ T1168] ? rtnl_newlink+0x653/0xa70 [ 155.748042][ T1168] ? __pfx___mutex_lock+0x10/0x10 [ 155.748044][ T1168] ? __pfx_validate_nla+0x10/0x10 [ 155.748049][ T1168] ? trace_cap_capable+0x11e/0x1a0 [ 155.748054][ T1168] ? __rtnl_newlink+0x3f2/0xa80 [ 155.748059][ T1168] rtnl_newlink+0x69c/0xa70 [ 155.748063][ T1168] ? __pfx_rtnl_newlink+0x10/0x10 [ 155.748066][ T1168] ? find_held_lock+0x2c/0x110 [ 155.748070][ T1168] ? __pfx___lock_release+0x10/0x10 [ 155.748073][ T1168] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 155.748078][ T1168] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 155.748081][ T1168] ? __pfx_rtnl_newlink+0x10/0x10 [ 155.748084][ T1168] rtnetlink_rcv_msg+0x712/0xc10 [ 155.748087][ T1168] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 155.748090][ T1168] ? hlock_class+0x4e/0x130 [ 155.748092][ T1168] ? mark_lock+0x38/0x3e0 [ 155.748096][ T1168] ? __lock_acquire+0xb9a/0x1680 [ 155.748100][ T1168] netlink_rcv_skb+0x130/0x360 [ 155.748104][ T1168] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 155.748107][ T1168] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 155.748114][ T1168] ? netlink_deliver_tap+0x13e/0x340 [ 155.748118][ T1168] ? netlink_deliver_tap+0xc3/0x340 [ 155.748121][ T1168] netlink_unicast+0x44b/0x710 [ 155.748125][ T1168] ? __pfx_netlink_unicast+0x10/0x10 [ 155.748129][ T1168] ? find_held_lock+0x2c/0x110 [ 155.748133][ T1168] netlink_sendmsg+0x723/0xbe0 [ 155.748138][ T1168] ? __pfx_netlink_sendmsg+0x10/0x10 [ 155.748144][ T1168] ____sys_sendmsg+0x7ac/0xa10 [ 155.748147][ T1168] ? __pfx_____sys_sendmsg+0x10/0x10 [ 155.748150][ T1168] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 155.748157][ T1168] ___sys_sendmsg+0xee/0x170 [ 155.748161][ T1168] ? __pfx____sys_sendmsg+0x10/0x10 [ 155.748165][ T1168] ? kasan_save_stack+0x34/0x50 [ 155.748169][ T1168] ? kasan_save_stack+0x24/0x50 [ 155.748171][ T1168] ? kasan_record_aux_stack+0x8c/0xa0 [ 155.748174][ T1168] ? __call_rcu_common.constprop.0+0xa1/0x5b0 [ 155.748178][ T1168] ? __x64_sys_close+0x7c/0xd0 [ 155.748181][ T1168] ? do_syscall_64+0xc1/0x1d0 [ 155.748183][ T1168] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 155.748186][ T1168] ? __lock_acquire+0xb9a/0x1680 [ 155.748189][ T1168] ? lock_downgrade+0x52/0x110 [ 155.748193][ T1168] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 155.748196][ T1168] ? find_held_lock+0x2c/0x110 [ 155.748200][ T1168] ? __lock_release+0x103/0x460 [ 155.748203][ T1168] ? __virt_addr_valid+0x22b/0x430 [ 155.748208][ T1168] ? __pfx___lock_release+0x10/0x10 [ 155.748211][ T1168] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 155.748215][ T1168] __sys_sendmsg+0x109/0x1a0 [ 155.748219][ T1168] ? __pfx___sys_sendmsg+0x10/0x10 [ 155.748226][ T1168] do_syscall_64+0xc1/0x1d0 [ 155.748229][ T1168] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 155.748232][ T1168] RIP: 0033:0x7f236d1399a7 [ 155.748236][ T1168] 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 [ 155.748239][ T1168] RSP: 002b:00007ffeef0e8be8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 155.748242][ T1168] RAX: ffffffffffffffda RBX: 00007ffeef0e9310 RCX: 00007f236d1399a7 [ 155.748245][ T1168] RDX: 0000000000000000 RSI: 00007ffeef0e8c50 RDI: 0000000000000005 [ 155.748246][ T1168] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 155.748248][ T1168] R10: 000000002e716910 R11: 0000000000000246 R12: 0000000000000004 [ 155.748249][ T1168] R13: 0000000067b32c80 R14: 0000000000498600 R15: 0000000000000000 [ 155.748254][ T1168] [ 155.788520][ T1168] lag2: Port device veth3 added [ 156.028882][ T1173] lag2: Port device veth5 added [ 156.148362][ T1175] 8021q: adding VLAN 0 to HW filter on device lag2 [ 156.216747][ T1176] 8021q: adding VLAN 0 to HW filter on device lag2 [ 156.535722][ T1181] gre: GRE over IPv4 demultiplexor driver [ 156.545963][ T1181] ip_gre: GRE over IPv4 tunneling driver [ 157.852159][ T1207] lag1: Mode changed to "loadbalance" [ 157.992688][ T1210] lag1: Port device veth2 added [ 158.216207][ T1213] lag1: Port device veth4 added [ 158.350028][ T1215] 8021q: adding VLAN 0 to HW filter on device lag1 [ 164.312123][ T1241] Mirror/redirect action on [ 164.472067][ T1244] lag2: Port device veth5 removed [ 168.444788][ T1254] lag2: Port device veth3 removed [ 173.333637][ T1284] lag2: Mode changed to "loadbalance" [ 173.455988][ T1287] lag2: Port device veth3 added [ 173.660745][ T1292] lag2: Port device veth5 added [ 173.772970][ T1294] 8021q: adding VLAN 0 to HW filter on device lag2 [ 173.849788][ T1295] 8021q: adding VLAN 0 to HW filter on device lag2 [ 180.027145][ T1329] lag2: Port device veth3 removed [ 184.058083][ T1339] lag2: Port device veth5 removed [ 188.962001][ T1369] lag2: Mode changed to "loadbalance" [ 189.151978][ T1372] lag2: Port device veth3 added [ 189.345385][ T1377] lag2: Port device veth5 added [ 189.478959][ T1379] 8021q: adding VLAN 0 to HW filter on device lag2 [ 189.547296][ T1380] 8021q: adding VLAN 0 to HW filter on device lag2 [ 195.617193][ T1207] lag1: Port device veth4 removed [ 195.622590][ T1207] lag1: Port device veth2 removed [ 197.117146][ T1369] lag2: Port device veth5 removed [ 197.119637][ T1369] lag2: Port device veth3 removed