[ 847.974549][T10156] team0: Mode changed to "loadbalance" [ 847.988923][T10156] team0: Port device dummy1 added [ 847.992499][T10156] team0: Port device dummy2 added [ 847.999728][T10156] [ 847.999875][T10156] ====================================================== [ 848.000146][T10156] WARNING: possible circular locking dependency detected [ 848.000407][T10156] 6.14.0-rc2-virtme #1 Not tainted [ 848.000557][T10156] ------------------------------------------------------ [ 848.000744][T10156] teamd/10156 is trying to acquire lock: [ 848.000890][T10156] ffff888030cf2d80 (team->team_lock_key){+.+.}-{4:4}, at: team_set_mac_address+0x120/0x250 [ 848.001323][T10156] [ 848.001323][T10156] but task is already holding lock: [ 848.001620][T10156] ffffffff9f7f9b10 (dev_addr_sem){++++}-{4:4}, at: netif_set_mac_address_user+0x23/0x50 [ 848.001895][T10156] [ 848.001895][T10156] which lock already depends on the new lock. [ 848.001895][T10156] [ 848.002218][T10156] [ 848.002218][T10156] the existing dependency chain (in reverse order) is: [ 848.002598][T10156] [ 848.002598][T10156] -> #2 (dev_addr_sem){++++}-{4:4}: [ 848.002829][T10156] __lock_acquire+0xb9a/0x1680 [ 848.002984][T10156] lock_acquire.part.0+0xeb/0x330 [ 848.003148][T10156] down_write+0x97/0x200 [ 848.003313][T10156] netif_set_mac_address_user+0x23/0x50 [ 848.003562][T10156] do_setlink.constprop.0+0x190d/0x2430 [ 848.003826][T10156] rtnl_setlink+0x2b5/0x5a0 [ 848.003975][T10156] rtnetlink_rcv_msg+0x712/0xc10 [ 848.004156][T10156] netlink_rcv_skb+0x130/0x360 [ 848.004316][T10156] netlink_unicast+0x44b/0x710 [ 848.004480][T10156] netlink_sendmsg+0x723/0xbe0 [ 848.004671][T10156] __sys_sendto+0x3c3/0x450 [ 848.004909][T10156] __x64_sys_sendto+0xe0/0x1c0 [ 848.005057][T10156] do_syscall_64+0xc1/0x1d0 [ 848.005291][T10156] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 848.005478][T10156] [ 848.005478][T10156] -> #1 (&dev->lock){+.+.}-{4:4}: [ 848.005721][T10156] __lock_acquire+0xb9a/0x1680 [ 848.005947][T10156] lock_acquire.part.0+0xeb/0x330 [ 848.006154][T10156] __mutex_lock+0x169/0xc40 [ 848.006320][T10156] dev_set_mtu+0x12a/0x1a0 [ 848.006478][T10156] team_port_add+0x76a/0x1c10 [ 848.006627][T10156] team_add_slave+0x41/0x80 [ 848.006788][T10156] do_set_master+0x302/0x610 [ 848.006979][T10156] do_setlink.constprop.0+0x87b/0x2430 [ 848.007269][T10156] rtnl_newlink+0x69c/0xa70 [ 848.007425][T10156] rtnetlink_rcv_msg+0x712/0xc10 [ 848.007578][T10156] netlink_rcv_skb+0x130/0x360 [ 848.007730][T10156] netlink_unicast+0x44b/0x710 [ 848.007878][T10156] netlink_sendmsg+0x723/0xbe0 [ 848.008043][T10156] ____sys_sendmsg+0x7ac/0xa10 [ 848.008267][T10156] ___sys_sendmsg+0xee/0x170 [ 848.008489][T10156] __sys_sendmsg+0x109/0x1a0 [ 848.008637][T10156] do_syscall_64+0xc1/0x1d0 [ 848.008790][T10156] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 848.008977][T10156] [ 848.008977][T10156] -> #0 (team->team_lock_key){+.+.}-{4:4}: [ 848.009278][T10156] check_prev_add+0x182/0xce0 [ 848.009522][T10156] validate_chain+0x7bd/0xae0 [ 848.009688][T10156] __lock_acquire+0xb9a/0x1680 [ 848.009833][T10156] lock_acquire.part.0+0xeb/0x330 [ 848.009985][T10156] __mutex_lock+0x169/0xc40 [ 848.010148][T10156] team_set_mac_address+0x120/0x250 [ 848.010323][T10156] netif_set_mac_address+0x28a/0x410 [ 848.010576][T10156] netif_set_mac_address_user+0x31/0x50 [ 848.010824][T10156] do_setlink.constprop.0+0x190d/0x2430 [ 848.011016][T10156] rtnl_newlink+0x69c/0xa70 [ 848.011207][T10156] rtnetlink_rcv_msg+0x712/0xc10 [ 848.011365][T10156] netlink_rcv_skb+0x130/0x360 [ 848.011527][T10156] netlink_unicast+0x44b/0x710 [ 848.011745][T10156] netlink_sendmsg+0x723/0xbe0 [ 848.011950][T10156] ____sys_sendmsg+0x7ac/0xa10 [ 848.012118][T10156] ___sys_sendmsg+0xee/0x170 [ 848.012288][T10156] __sys_sendmsg+0x109/0x1a0 [ 848.012434][T10156] do_syscall_64+0xc1/0x1d0 [ 848.012579][T10156] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 848.012804][T10156] [ 848.012804][T10156] other info that might help us debug this: [ 848.012804][T10156] [ 848.013257][T10156] Chain exists of: [ 848.013257][T10156] team->team_lock_key --> &dev->lock --> dev_addr_sem [ 848.013257][T10156] [ 848.013606][T10156] Possible unsafe locking scenario: [ 848.013606][T10156] [ 848.013840][T10156] CPU0 CPU1 [ 848.014044][T10156] ---- ---- [ 848.014267][T10156] lock(dev_addr_sem); [ 848.014389][T10156] lock(&dev->lock); [ 848.014577][T10156] lock(dev_addr_sem); [ 848.014758][T10156] lock(team->team_lock_key); [ 848.014909][T10156] [ 848.014909][T10156] *** DEADLOCK *** [ 848.014909][T10156] [ 848.015186][T10156] 2 locks held by teamd/10156: [ 848.015416][T10156] #0: ffffffff9f80b088 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 848.015695][T10156] #1: ffffffff9f7f9b10 (dev_addr_sem){++++}-{4:4}, at: netif_set_mac_address_user+0x23/0x50 [ 848.015999][T10156] [ 848.015999][T10156] stack backtrace: [ 848.016259][T10156] CPU: 3 UID: 0 PID: 10156 Comm: teamd Not tainted 6.14.0-rc2-virtme #1 [ 848.016267][T10156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 848.016270][T10156] Call Trace: [ 848.016273][T10156] [ 848.016276][T10156] dump_stack_lvl+0x82/0xd0 [ 848.016287][T10156] print_circular_bug+0x1b7/0x240 [ 848.016297][T10156] check_noncircular+0x2f9/0x3e0 [ 848.016305][T10156] ? __pfx_check_noncircular+0x10/0x10 [ 848.016312][T10156] ? __pfx_validate_chain+0x10/0x10 [ 848.016319][T10156] ? hlock_class+0x4e/0x130 [ 848.016327][T10156] ? alloc_chain_hlocks+0x4e0/0x720 [ 848.016335][T10156] check_prev_add+0x182/0xce0 [ 848.016345][T10156] validate_chain+0x7bd/0xae0 [ 848.016353][T10156] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 848.016358][T10156] ? __pfx_validate_chain+0x10/0x10 [ 848.016365][T10156] ? hlock_class+0x4e/0x130 [ 848.016370][T10156] ? mark_lock+0x38/0x3e0 [ 848.016379][T10156] __lock_acquire+0xb9a/0x1680 [ 848.016388][T10156] ? unwind_get_return_address+0x5e/0xa0 [ 848.016399][T10156] lock_acquire.part.0+0xeb/0x330 [ 848.016403][T10156] ? team_set_mac_address+0x120/0x250 [ 848.016411][T10156] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 848.016416][T10156] ? trace_lock_acquire+0x14c/0x1f0 [ 848.016424][T10156] ? lock_acquire+0x32/0xc0 [ 848.016427][T10156] ? team_set_mac_address+0x120/0x250 [ 848.016434][T10156] __mutex_lock+0x169/0xc40 [ 848.016439][T10156] ? team_set_mac_address+0x120/0x250 [ 848.016444][T10156] ? __lock_release+0x103/0x460 [ 848.016448][T10156] ? packet_notifier+0x3a6/0x810 [ 848.016456][T10156] ? team_set_mac_address+0x120/0x250 [ 848.016460][T10156] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 848.016466][T10156] ? __pfx___mutex_lock+0x10/0x10 [ 848.016470][T10156] ? __lock_acquire+0xb9a/0x1680 [ 848.016479][T10156] ? __pfx_br_device_event+0x10/0x10 [ 848.016486][T10156] ? dev_addr_mod+0xa4/0x360 [ 848.016495][T10156] ? team_set_mac_address+0x120/0x250 [ 848.016500][T10156] team_set_mac_address+0x120/0x250 [ 848.016508][T10156] netif_set_mac_address+0x28a/0x410 [ 848.016515][T10156] ? __pfx_netif_set_mac_address+0x10/0x10 [ 848.016523][T10156] ? __pfx_down_write+0x10/0x10 [ 848.016529][T10156] ? trace_kmalloc+0x2d/0xe0 [ 848.016540][T10156] netif_set_mac_address_user+0x31/0x50 [ 848.016547][T10156] do_setlink.constprop.0+0x190d/0x2430 [ 848.016556][T10156] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 848.016564][T10156] ? lock_acquire.part.0+0xeb/0x330 [ 848.016568][T10156] ? rtnl_newlink+0x653/0xa70 [ 848.016574][T10156] ? rtnl_newlink+0xb9/0xa70 [ 848.016578][T10156] ? rtnetlink_rcv_msg+0x712/0xc10 [ 848.016582][T10156] ? __mutex_trylock_common+0xfa/0x260 [ 848.016588][T10156] ? __pfx___mutex_trylock_common+0x10/0x10 [ 848.016593][T10156] ? lock_acquire+0x32/0xc0 [ 848.016596][T10156] ? trace_contention_end+0xef/0x150 [ 848.016600][T10156] ? __mutex_lock+0x190/0xc40 [ 848.016603][T10156] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 848.016607][T10156] ? rtnl_newlink+0x653/0xa70 [ 848.016610][T10156] ? __pfx___mutex_lock+0x10/0x10 [ 848.016612][T10156] ? __pfx_validate_nla+0x10/0x10 [ 848.016620][T10156] ? trace_cap_capable+0x11e/0x1a0 [ 848.016626][T10156] ? __rtnl_newlink+0x3f2/0xa80 [ 848.016631][T10156] rtnl_newlink+0x69c/0xa70 [ 848.016636][T10156] ? __pfx_rtnl_newlink+0x10/0x10 [ 848.016639][T10156] ? find_held_lock+0x2c/0x110 [ 848.016644][T10156] ? __pfx___lock_release+0x10/0x10 [ 848.016646][T10156] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 848.016651][T10156] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 848.016655][T10156] ? __pfx_rtnl_newlink+0x10/0x10 [ 848.016658][T10156] rtnetlink_rcv_msg+0x712/0xc10 [ 848.016663][T10156] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 848.016666][T10156] ? hlock_class+0x4e/0x130 [ 848.016669][T10156] ? mark_lock+0x38/0x3e0 [ 848.016674][T10156] ? __lock_acquire+0xb9a/0x1680 [ 848.016678][T10156] netlink_rcv_skb+0x130/0x360 [ 848.016683][T10156] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 848.016688][T10156] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 848.016695][T10156] ? netlink_deliver_tap+0x13e/0x340 [ 848.016699][T10156] ? netlink_deliver_tap+0xc3/0x340 [ 848.016704][T10156] netlink_unicast+0x44b/0x710 [ 848.016708][T10156] ? __pfx_netlink_unicast+0x10/0x10 [ 848.016712][T10156] ? find_held_lock+0x2c/0x110 [ 848.016716][T10156] netlink_sendmsg+0x723/0xbe0 [ 848.016721][T10156] ? __pfx_netlink_sendmsg+0x10/0x10 [ 848.016728][T10156] ____sys_sendmsg+0x7ac/0xa10 [ 848.016733][T10156] ? __pfx_____sys_sendmsg+0x10/0x10 [ 848.016736][T10156] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 848.016743][T10156] ___sys_sendmsg+0xee/0x170 [ 848.016747][T10156] ? __pfx____sys_sendmsg+0x10/0x10 [ 848.016751][T10156] ? ___sys_recvmsg+0xe0/0x150 [ 848.016754][T10156] ? __pfx____sys_recvmsg+0x10/0x10 [ 848.016757][T10156] ? __pfx_poll_select_finish+0x10/0x10 [ 848.016763][T10156] ? _copy_from_user+0x53/0xa0 [ 848.016770][T10156] ? __pfx_ep_poll+0x10/0x10 [ 848.016781][T10156] ? do_pselect.constprop.0+0x12b/0x1e0 [ 848.016786][T10156] __sys_sendmsg+0x109/0x1a0 [ 848.016789][T10156] ? __pfx___sys_sendmsg+0x10/0x10 [ 848.016794][T10156] ? do_user_addr_fault+0x97c/0xe30 [ 848.016801][T10156] do_syscall_64+0xc1/0x1d0 [ 848.016804][T10156] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 848.016809][T10156] RIP: 0033:0x7f63e738b9a7 [ 848.016814][T10156] 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 [ 848.016817][T10156] RSP: 002b:00007fffd6c17f18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 848.016821][T10156] RAX: ffffffffffffffda RBX: 000000000963c730 RCX: 00007f63e738b9a7 [ 848.016823][T10156] RDX: 0000000000000000 RSI: 00007fffd6c17f50 RDI: 0000000000000005 [ 848.016825][T10156] RBP: 000000000963c640 R08: 000000000000000a R09: 0000000000000077 [ 848.016826][T10156] R10: 0000000000000063 R11: 0000000000000246 R12: 00000000096476d0 [ 848.016828][T10156] R13: 00007fffd6c17f50 R14: 0000000009657610 R15: 00000000ffffffea [ 848.016833][T10156] [ 848.189806][T10161] dummy1: entered promiscuous mode [ 848.190066][T10161] dummy2: entered promiscuous mode [ 848.544855][T10180] dummy1: left promiscuous mode [ 848.545067][T10180] dummy2: left promiscuous mode [ 848.785827][T10181] team0 (unregistering): Port device dummy1 removed [ 848.787559][T10181] team0 (unregistering): Port device dummy2 removed