[ 11.645440][ T244] team0: Mode changed to "loadbalance" [ 11.673452][ T244] [ 11.673631][ T244] ====================================================== [ 11.673956][ T244] WARNING: possible circular locking dependency detected [ 11.674277][ T244] 6.14.0-rc2-virtme #1 Not tainted [ 11.674529][ T244] ------------------------------------------------------ [ 11.674846][ T244] teamd/244 is trying to acquire lock: [ 11.675096][ T244] ffff888007681c90 (&dev->lock){+.+.}-{4:4}, at: dev_set_mtu+0x12a/0x1a0 [ 11.675498][ T244] [ 11.675498][ T244] but task is already holding lock: [ 11.675870][ T244] ffff88800267ad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave+0x33/0x80 [ 11.676343][ T244] [ 11.676343][ T244] which lock already depends on the new lock. [ 11.676343][ T244] [ 11.676833][ T244] [ 11.676833][ T244] the existing dependency chain (in reverse order) is: [ 11.677269][ T244] [ 11.677269][ T244] -> #1 (team->team_lock_key){+.+.}-{4:4}: [ 11.677652][ T244] __lock_acquire+0xb9a/0x1680 [ 11.677916][ T244] lock_acquire.part.0+0xeb/0x330 [ 11.678169][ T244] __mutex_lock+0x169/0xc40 [ 11.678434][ T244] team_set_mac_address+0x120/0x250 [ 11.678718][ T244] netif_set_mac_address+0x28a/0x410 [ 11.679060][ T244] do_setlink.constprop.0+0x1980/0x25f0 [ 11.679359][ T244] rtnl_setlink+0x2b5/0x5a0 [ 11.679612][ T244] rtnetlink_rcv_msg+0x712/0xc10 [ 11.679868][ T244] netlink_rcv_skb+0x130/0x360 [ 11.680117][ T244] netlink_unicast+0x44b/0x710 [ 11.680354][ T244] netlink_sendmsg+0x723/0xbe0 [ 11.680604][ T244] __sys_sendto+0x3c3/0x450 [ 11.680848][ T244] __x64_sys_sendto+0xe0/0x1c0 [ 11.681099][ T244] do_syscall_64+0xc1/0x1d0 [ 11.681338][ T244] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 11.681635][ T244] [ 11.681635][ T244] -> #0 (&dev->lock){+.+.}-{4:4}: [ 11.682011][ T244] check_prev_add+0x182/0xce0 [ 11.682264][ T244] validate_chain+0x7bd/0xae0 [ 11.682514][ T244] __lock_acquire+0xb9a/0x1680 [ 11.682760][ T244] lock_acquire.part.0+0xeb/0x330 [ 11.682992][ T244] __mutex_lock+0x169/0xc40 [ 11.683233][ T244] dev_set_mtu+0x12a/0x1a0 [ 11.683632][ T244] team_port_add+0x76a/0x1c10 [ 11.683881][ T244] team_add_slave+0x41/0x80 [ 11.684120][ T244] do_set_master+0x302/0x610 [ 11.684355][ T244] do_setlink.constprop.0+0x87b/0x25f0 [ 11.684703][ T244] rtnl_newlink+0x69c/0xa70 [ 11.684960][ T244] rtnetlink_rcv_msg+0x712/0xc10 [ 11.685221][ T244] netlink_rcv_skb+0x130/0x360 [ 11.685778][ T244] netlink_unicast+0x44b/0x710 [ 11.686033][ T244] netlink_sendmsg+0x723/0xbe0 [ 11.686281][ T244] ____sys_sendmsg+0x7ac/0xa10 [ 11.686526][ T244] ___sys_sendmsg+0xee/0x170 [ 11.686775][ T244] __sys_sendmsg+0x109/0x1a0 [ 11.687031][ T244] do_syscall_64+0xc1/0x1d0 [ 11.687438][ T244] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 11.687762][ T244] [ 11.687762][ T244] other info that might help us debug this: [ 11.687762][ T244] [ 11.688252][ T244] Possible unsafe locking scenario: [ 11.688252][ T244] [ 11.688637][ T244] CPU0 CPU1 [ 11.688890][ T244] ---- ---- [ 11.689132][ T244] lock(team->team_lock_key); [ 11.689406][ T244] lock(&dev->lock); [ 11.689731][ T244] lock(team->team_lock_key); [ 11.690107][ T244] lock(&dev->lock); [ 11.690303][ T244] [ 11.690303][ T244] *** DEADLOCK *** [ 11.690303][ T244] [ 11.690670][ T244] 2 locks held by teamd/244: [ 11.690929][ T244] #0: ffffffff8f40ae48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 11.691389][ T244] #1: ffff88800267ad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave+0x33/0x80 [ 11.691849][ T244] [ 11.691849][ T244] stack backtrace: [ 11.692156][ T244] CPU: 3 UID: 0 PID: 244 Comm: teamd Not tainted 6.14.0-rc2-virtme #1 [ 11.692164][ T244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.692167][ T244] Call Trace: [ 11.692169][ T244] [ 11.692172][ T244] dump_stack_lvl+0x82/0xd0 [ 11.692181][ T244] print_circular_bug+0x1b7/0x240 [ 11.692191][ T244] check_noncircular+0x2f9/0x3e0 [ 11.692198][ T244] ? __pfx_check_noncircular+0x10/0x10 [ 11.692204][ T244] ? find_held_lock+0x2c/0x110 [ 11.692210][ T244] ? __pfx_validate_chain+0x10/0x10 [ 11.692219][ T244] ? alloc_chain_hlocks+0x4e0/0x720 [ 11.692227][ T244] check_prev_add+0x182/0xce0 [ 11.692236][ T244] validate_chain+0x7bd/0xae0 [ 11.692245][ T244] ? __pfx_validate_chain+0x10/0x10 [ 11.692251][ T244] ? hlock_class+0x4e/0x130 [ 11.692256][ T244] ? mark_lock+0x38/0x3e0 [ 11.692264][ T244] __lock_acquire+0xb9a/0x1680 [ 11.692274][ T244] lock_acquire.part.0+0xeb/0x330 [ 11.692278][ T244] ? dev_set_mtu+0x12a/0x1a0 [ 11.692285][ T244] ? do_set_master+0x302/0x610 [ 11.692291][ T244] ? do_setlink.constprop.0+0x87b/0x25f0 [ 11.692296][ T244] ? rtnl_newlink+0x69c/0xa70 [ 11.692301][ T244] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.692306][ T244] ? trace_lock_acquire+0x14c/0x1f0 [ 11.692312][ T244] ? lock_acquire+0x32/0xc0 [ 11.692316][ T244] ? dev_set_mtu+0x12a/0x1a0 [ 11.692322][ T244] __mutex_lock+0x169/0xc40 [ 11.692328][ T244] ? dev_set_mtu+0x12a/0x1a0 [ 11.692333][ T244] ? __create_object+0x5e/0xb0 [ 11.692340][ T244] ? __pfx___lock_release+0x10/0x10 [ 11.692344][ T244] ? dev_set_mtu+0x12a/0x1a0 [ 11.692351][ T244] ? __pfx___mutex_lock+0x10/0x10 [ 11.692357][ T244] ? mark_held_locks+0x9e/0xe0 [ 11.692363][ T244] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 11.692371][ T244] ? kasan_save_track+0x14/0x30 [ 11.692379][ T244] ? dev_set_mtu+0x12a/0x1a0 [ 11.692384][ T244] dev_set_mtu+0x12a/0x1a0 [ 11.692391][ T244] team_port_add+0x76a/0x1c10 [ 11.692399][ T244] ? __mutex_unlock_slowpath+0x145/0x3f0 [ 11.692405][ T244] ? __pfx_team_port_add+0x10/0x10 [ 11.692411][ T244] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 11.692421][ T244] team_add_slave+0x41/0x80 [ 11.692427][ T244] do_set_master+0x302/0x610 [ 11.692435][ T244] do_setlink.constprop.0+0x87b/0x25f0 [ 11.692444][ T244] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 11.692450][ T244] ? lock_acquire.part.0+0xeb/0x330 [ 11.692454][ T244] ? rtnl_newlink+0x653/0xa70 [ 11.692459][ T244] ? rtnl_newlink+0xb9/0xa70 [ 11.692464][ T244] ? rtnetlink_rcv_msg+0x712/0xc10 [ 11.692470][ T244] ? __mutex_trylock_common+0xfa/0x260 [ 11.692478][ T244] ? __pfx___mutex_trylock_common+0x10/0x10 [ 11.692486][ T244] ? lock_acquire+0x32/0xc0 [ 11.692491][ T244] ? trace_contention_end+0xef/0x150 [ 11.692498][ T244] ? __mutex_lock+0x190/0xc40 [ 11.692504][ T244] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 11.692509][ T244] ? rtnl_newlink+0x653/0xa70 [ 11.692515][ T244] ? __pfx___mutex_lock+0x10/0x10 [ 11.692520][ T244] ? __pfx_validate_nla+0x10/0x10 [ 11.692528][ T244] ? trace_cap_capable+0x11e/0x1a0 [ 11.692537][ T244] ? __rtnl_newlink+0x3f2/0xa80 [ 11.692546][ T244] rtnl_newlink+0x69c/0xa70 [ 11.692554][ T244] ? __pfx_rtnl_newlink+0x10/0x10 [ 11.692559][ T244] ? find_held_lock+0x2c/0x110 [ 11.692567][ T244] ? __pfx___lock_release+0x10/0x10 [ 11.692571][ T244] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.692580][ T244] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 11.692586][ T244] ? __pfx_rtnl_newlink+0x10/0x10 [ 11.692592][ T244] rtnetlink_rcv_msg+0x712/0xc10 [ 11.692599][ T244] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 11.692605][ T244] ? hlock_class+0x4e/0x130 [ 11.692610][ T244] ? mark_lock+0x38/0x3e0 [ 11.692618][ T244] ? __lock_acquire+0xb9a/0x1680 [ 11.692625][ T244] netlink_rcv_skb+0x130/0x360 [ 11.692632][ T244] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 11.692639][ T244] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 11.692652][ T244] ? netlink_deliver_tap+0x13e/0x340 [ 11.692658][ T244] ? netlink_deliver_tap+0xc3/0x340 [ 11.692665][ T244] netlink_unicast+0x44b/0x710 [ 11.692673][ T244] ? __pfx_netlink_unicast+0x10/0x10 [ 11.692678][ T244] ? find_held_lock+0x2c/0x110 [ 11.692686][ T244] netlink_sendmsg+0x723/0xbe0 [ 11.692693][ T244] ? __pfx_netlink_sendmsg+0x10/0x10 [ 11.692703][ T244] ____sys_sendmsg+0x7ac/0xa10 [ 11.692710][ T244] ? __pfx_____sys_sendmsg+0x10/0x10 [ 11.692714][ T244] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 11.692724][ T244] ___sys_sendmsg+0xee/0x170 [ 11.692730][ T244] ? __pfx____sys_sendmsg+0x10/0x10 [ 11.692736][ T244] ? ___sys_recvmsg+0xe0/0x150 [ 11.692740][ T244] ? __pfx____sys_recvmsg+0x10/0x10 [ 11.692746][ T244] ? do_user_addr_fault+0x8fd/0xe30 [ 11.692753][ T244] ? do_user_addr_fault+0x8fd/0xe30 [ 11.692759][ T244] ? find_held_lock+0x2c/0x110 [ 11.692765][ T244] ? __lock_release+0x103/0x460 [ 11.692771][ T244] __sys_sendmsg+0x109/0x1a0 [ 11.692775][ T244] ? __pfx___sys_sendmsg+0x10/0x10 [ 11.692783][ T244] ? do_user_addr_fault+0x97c/0xe30 [ 11.692790][ T244] do_syscall_64+0xc1/0x1d0 [ 11.692796][ T244] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 11.692803][ T244] RIP: 0033:0x7f3e5e2cb9a7 [ 11.692809][ T244] 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 [ 11.692814][ T244] RSP: 002b:00007ffe07e7a6b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 11.692820][ T244] RAX: ffffffffffffffda RBX: 000000002db47730 RCX: 00007f3e5e2cb9a7 [ 11.692824][ T244] RDX: 0000000000000000 RSI: 00007ffe07e7a6f0 RDI: 0000000000000005 [ 11.692826][ T244] RBP: 000000002db47640 R08: 0000000000000008 R09: 0000000000000000 [ 11.692830][ T244] R10: 0000000000008000 R11: 0000000000000246 R12: 000000002db62760 [ 11.692833][ T244] R13: 00007ffe07e7a6f0 R14: 0000000000000000 R15: 00007ffe07e7a880 [ 11.692843][ T244] [ 11.746299][ T244] team0: Port device dummy1 added [ 11.761555][ T244] team0: Port device dummy2 added [ 11.925541][ T249] dummy1: entered promiscuous mode [ 11.925791][ T249] dummy2: entered promiscuous mode [ 12.326882][ T268] dummy1: left promiscuous mode [ 12.327084][ T268] dummy2: left promiscuous mode [ 12.589176][ T270] team0 (unregistering): Port device dummy1 removed [ 12.590765][ T270] team0 (unregistering): Port device dummy2 removed [ 12.661788][ T244] teamd (244) used greatest stack depth: 23608 bytes left