[ 10.587022][ T244] team0: Mode changed to "loadbalance" [ 10.606632][ T244] [ 10.606744][ T244] ====================================================== [ 10.606936][ T244] WARNING: possible circular locking dependency detected [ 10.607121][ T244] 6.14.0-rc2-virtme #1 Not tainted [ 10.607277][ T244] ------------------------------------------------------ [ 10.607466][ T244] teamd/244 is trying to acquire lock: [ 10.607620][ T244] ffff8880085d9c90 (&dev->lock){+.+.}-{4:4}, at: dev_set_mtu+0x12a/0x1a0 [ 10.607877][ T244] [ 10.607877][ T244] but task is already holding lock: [ 10.608113][ T244] ffff8880059cad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave+0x33/0x80 [ 10.608400][ T244] [ 10.608400][ T244] which lock already depends on the new lock. [ 10.608400][ T244] [ 10.608699][ T244] [ 10.608699][ T244] the existing dependency chain (in reverse order) is: [ 10.608963][ T244] [ 10.608963][ T244] -> #2 (team->team_lock_key){+.+.}-{4:4}: [ 10.609200][ T244] __lock_acquire+0xb9a/0x1680 [ 10.609361][ T244] lock_acquire.part.0+0xeb/0x330 [ 10.609520][ T244] __mutex_lock+0x169/0xc40 [ 10.609672][ T244] team_set_mac_address+0x120/0x250 [ 10.609824][ T244] netif_set_mac_address+0x28a/0x410 [ 10.610018][ T244] netif_set_mac_address_user+0x31/0x50 [ 10.610213][ T244] do_setlink.constprop.0+0x190d/0x2430 [ 10.610404][ T244] rtnl_setlink+0x2b5/0x5a0 [ 10.610558][ T244] rtnetlink_rcv_msg+0x712/0xc10 [ 10.610704][ T244] netlink_rcv_skb+0x130/0x360 [ 10.610859][ T244] netlink_unicast+0x44b/0x710 [ 10.611013][ T244] netlink_sendmsg+0x723/0xbe0 [ 10.611163][ T244] __sys_sendto+0x3c3/0x450 [ 10.611313][ T244] __x64_sys_sendto+0xe0/0x1c0 [ 10.611466][ T244] do_syscall_64+0xc1/0x1d0 [ 10.611621][ T244] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 10.611812][ T244] [ 10.611812][ T244] -> #1 (dev_addr_sem){++++}-{4:4}: [ 10.612038][ T244] __lock_acquire+0xb9a/0x1680 [ 10.612192][ T244] lock_acquire.part.0+0xeb/0x330 [ 10.612342][ T244] down_write+0x97/0x200 [ 10.612495][ T244] netif_set_mac_address_user+0x23/0x50 [ 10.612689][ T244] do_setlink.constprop.0+0x190d/0x2430 [ 10.612881][ T244] rtnl_setlink+0x2b5/0x5a0 [ 10.613037][ T244] rtnetlink_rcv_msg+0x712/0xc10 [ 10.613196][ T244] netlink_rcv_skb+0x130/0x360 [ 10.613351][ T244] netlink_unicast+0x44b/0x710 [ 10.613504][ T244] netlink_sendmsg+0x723/0xbe0 [ 10.613652][ T244] __sys_sendto+0x3c3/0x450 [ 10.613802][ T244] __x64_sys_sendto+0xe0/0x1c0 [ 10.613954][ T244] do_syscall_64+0xc1/0x1d0 [ 10.614106][ T244] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 10.614298][ T244] [ 10.614298][ T244] -> #0 (&dev->lock){+.+.}-{4:4}: [ 10.614527][ T244] check_prev_add+0x182/0xce0 [ 10.614681][ T244] validate_chain+0x7bd/0xae0 [ 10.614837][ T244] __lock_acquire+0xb9a/0x1680 [ 10.614989][ T244] lock_acquire.part.0+0xeb/0x330 [ 10.615142][ T244] __mutex_lock+0x169/0xc40 [ 10.615294][ T244] dev_set_mtu+0x12a/0x1a0 [ 10.615445][ T244] team_port_add+0x76a/0x1c10 [ 10.615596][ T244] team_add_slave+0x41/0x80 [ 10.615746][ T244] do_set_master+0x302/0x610 [ 10.615897][ T244] do_setlink.constprop.0+0x87b/0x2430 [ 10.616088][ T244] rtnl_newlink+0x69c/0xa70 [ 10.616237][ T244] rtnetlink_rcv_msg+0x712/0xc10 [ 10.616392][ T244] netlink_rcv_skb+0x130/0x360 [ 10.616556][ T244] netlink_unicast+0x44b/0x710 [ 10.616700][ T244] netlink_sendmsg+0x723/0xbe0 [ 10.616853][ T244] ____sys_sendmsg+0x7ac/0xa10 [ 10.617008][ T244] ___sys_sendmsg+0xee/0x170 [ 10.617166][ T244] __sys_sendmsg+0x109/0x1a0 [ 10.617321][ T244] do_syscall_64+0xc1/0x1d0 [ 10.617472][ T244] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 10.617665][ T244] [ 10.617665][ T244] other info that might help us debug this: [ 10.617665][ T244] [ 10.617966][ T244] Chain exists of: [ 10.617966][ T244] &dev->lock --> dev_addr_sem --> team->team_lock_key [ 10.617966][ T244] [ 10.618309][ T244] Possible unsafe locking scenario: [ 10.618309][ T244] [ 10.618532][ T244] CPU0 CPU1 [ 10.618687][ T244] ---- ---- [ 10.618837][ T244] lock(team->team_lock_key); [ 10.618989][ T244] lock(dev_addr_sem); [ 10.619175][ T244] lock(team->team_lock_key); [ 10.619398][ T244] lock(&dev->lock); [ 10.619513][ T244] [ 10.619513][ T244] *** DEADLOCK *** [ 10.619513][ T244] [ 10.619732][ T244] 2 locks held by teamd/244: [ 10.619886][ T244] #0: ffffffff9a00b088 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 10.620156][ T244] #1: ffff8880059cad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave+0x33/0x80 [ 10.620425][ T244] [ 10.620425][ T244] stack backtrace: [ 10.620610][ T244] CPU: 3 UID: 0 PID: 244 Comm: teamd Not tainted 6.14.0-rc2-virtme #1 [ 10.620615][ T244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.620618][ T244] Call Trace: [ 10.620620][ T244] [ 10.620622][ T244] dump_stack_lvl+0x82/0xd0 [ 10.620629][ T244] print_circular_bug+0x1b7/0x240 [ 10.620635][ T244] check_noncircular+0x2f9/0x3e0 [ 10.620639][ T244] ? __pfx_check_noncircular+0x10/0x10 [ 10.620643][ T244] ? find_held_lock+0x2c/0x110 [ 10.620647][ T244] ? __pfx_validate_chain+0x10/0x10 [ 10.620652][ T244] ? alloc_chain_hlocks+0x4e0/0x720 [ 10.620657][ T244] check_prev_add+0x182/0xce0 [ 10.620662][ T244] validate_chain+0x7bd/0xae0 [ 10.620667][ T244] ? __pfx_validate_chain+0x10/0x10 [ 10.620671][ T244] ? hlock_class+0x4e/0x130 [ 10.620674][ T244] ? mark_lock+0x38/0x3e0 [ 10.620679][ T244] __lock_acquire+0xb9a/0x1680 [ 10.620685][ T244] lock_acquire.part.0+0xeb/0x330 [ 10.620687][ T244] ? dev_set_mtu+0x12a/0x1a0 [ 10.620692][ T244] ? do_set_master+0x302/0x610 [ 10.620695][ T244] ? do_setlink.constprop.0+0x87b/0x2430 [ 10.620698][ T244] ? rtnl_newlink+0x69c/0xa70 [ 10.620702][ T244] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 10.620704][ T244] ? trace_lock_acquire+0x14c/0x1f0 [ 10.620708][ T244] ? lock_acquire+0x32/0xc0 [ 10.620710][ T244] ? dev_set_mtu+0x12a/0x1a0 [ 10.620714][ T244] __mutex_lock+0x169/0xc40 [ 10.620717][ T244] ? dev_set_mtu+0x12a/0x1a0 [ 10.620720][ T244] ? __create_object+0x5e/0xb0 [ 10.620726][ T244] ? __pfx___lock_release+0x10/0x10 [ 10.620728][ T244] ? dev_set_mtu+0x12a/0x1a0 [ 10.620731][ T244] ? __pfx___mutex_lock+0x10/0x10 [ 10.620734][ T244] ? mark_held_locks+0x9e/0xe0 [ 10.620738][ T244] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 10.620743][ T244] ? kasan_save_track+0x14/0x30 [ 10.620748][ T244] ? dev_set_mtu+0x12a/0x1a0 [ 10.620751][ T244] dev_set_mtu+0x12a/0x1a0 [ 10.620755][ T244] team_port_add+0x76a/0x1c10 [ 10.620759][ T244] ? __mutex_unlock_slowpath+0x145/0x3f0 [ 10.620764][ T244] ? __pfx_team_port_add+0x10/0x10 [ 10.620767][ T244] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 10.620773][ T244] team_add_slave+0x41/0x80 [ 10.620777][ T244] do_set_master+0x302/0x610 [ 10.620781][ T244] do_setlink.constprop.0+0x87b/0x2430 [ 10.620786][ T244] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 10.620790][ T244] ? lock_acquire.part.0+0xeb/0x330 [ 10.620793][ T244] ? rtnl_newlink+0x653/0xa70 [ 10.620797][ T244] ? rtnl_newlink+0xb9/0xa70 [ 10.620800][ T244] ? rtnetlink_rcv_msg+0x712/0xc10 [ 10.620803][ T244] ? __mutex_trylock_common+0xfa/0x260 [ 10.620810][ T244] ? __pfx___mutex_trylock_common+0x10/0x10 [ 10.620814][ T244] ? lock_acquire+0x32/0xc0 [ 10.620817][ T244] ? trace_contention_end+0xef/0x150 [ 10.620821][ T244] ? __mutex_lock+0x190/0xc40 [ 10.620824][ T244] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 10.620827][ T244] ? rtnl_newlink+0x653/0xa70 [ 10.620831][ T244] ? __pfx___mutex_lock+0x10/0x10 [ 10.620833][ T244] ? __pfx_validate_nla+0x10/0x10 [ 10.620839][ T244] ? trace_cap_capable+0x11e/0x1a0 [ 10.620844][ T244] ? __rtnl_newlink+0x3f2/0xa80 [ 10.620849][ T244] rtnl_newlink+0x69c/0xa70 [ 10.620854][ T244] ? __pfx_rtnl_newlink+0x10/0x10 [ 10.620856][ T244] ? find_held_lock+0x2c/0x110 [ 10.620861][ T244] ? __pfx___lock_release+0x10/0x10 [ 10.620863][ T244] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 10.620867][ T244] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 10.620871][ T244] ? __pfx_rtnl_newlink+0x10/0x10 [ 10.620874][ T244] rtnetlink_rcv_msg+0x712/0xc10 [ 10.620878][ T244] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 10.620881][ T244] ? hlock_class+0x4e/0x130 [ 10.620884][ T244] ? mark_lock+0x38/0x3e0 [ 10.620889][ T244] ? __lock_acquire+0xb9a/0x1680 [ 10.620893][ T244] netlink_rcv_skb+0x130/0x360 [ 10.620897][ T244] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 10.620901][ T244] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 10.620909][ T244] ? netlink_deliver_tap+0x13e/0x340 [ 10.620913][ T244] ? netlink_deliver_tap+0xc3/0x340 [ 10.620917][ T244] netlink_unicast+0x44b/0x710 [ 10.620922][ T244] ? __pfx_netlink_unicast+0x10/0x10 [ 10.620926][ T244] ? find_held_lock+0x2c/0x110 [ 10.620930][ T244] netlink_sendmsg+0x723/0xbe0 [ 10.620935][ T244] ? __pfx_netlink_sendmsg+0x10/0x10 [ 10.620941][ T244] ____sys_sendmsg+0x7ac/0xa10 [ 10.620945][ T244] ? __pfx_____sys_sendmsg+0x10/0x10 [ 10.620948][ T244] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 10.620954][ T244] ___sys_sendmsg+0xee/0x170 [ 10.620957][ T244] ? __pfx____sys_sendmsg+0x10/0x10 [ 10.620961][ T244] ? ___sys_recvmsg+0xe0/0x150 [ 10.620964][ T244] ? __pfx____sys_recvmsg+0x10/0x10 [ 10.620968][ T244] ? do_user_addr_fault+0x8fd/0xe30 [ 10.620974][ T244] ? do_user_addr_fault+0x8fd/0xe30 [ 10.620978][ T244] ? find_held_lock+0x2c/0x110 [ 10.620982][ T244] ? __lock_release+0x103/0x460 [ 10.620985][ T244] __sys_sendmsg+0x109/0x1a0 [ 10.620988][ T244] ? __pfx___sys_sendmsg+0x10/0x10 [ 10.620992][ T244] ? do_user_addr_fault+0x97c/0xe30 [ 10.620998][ T244] do_syscall_64+0xc1/0x1d0 [ 10.621000][ T244] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 10.621004][ T244] RIP: 0033:0x7faeeb6779a7 [ 10.621008][ 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 [ 10.621011][ T244] RSP: 002b:00007ffe812e0758 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 10.621015][ T244] RAX: ffffffffffffffda RBX: 0000000039c69730 RCX: 00007faeeb6779a7 [ 10.621017][ T244] RDX: 0000000000000000 RSI: 00007ffe812e0790 RDI: 0000000000000005 [ 10.621019][ T244] RBP: 0000000039c69640 R08: 0000000000000008 R09: 0000000000000000 [ 10.621021][ T244] R10: 0000000000008000 R11: 0000000000000246 R12: 0000000039c84760 [ 10.621022][ T244] R13: 00007ffe812e0790 R14: 0000000000000000 R15: 00007ffe812e0920 [ 10.621028][ T244] [ 10.639683][ T244] team0: Port device dummy1 added [ 10.642634][ T244] team0: Port device dummy2 added [ 10.786947][ T249] dummy1: entered promiscuous mode [ 10.787251][ T249] dummy2: entered promiscuous mode [ 11.150380][ T268] dummy1: left promiscuous mode [ 11.150632][ T268] dummy2: left promiscuous mode [ 11.422122][ T269] team0 (unregistering): Port device dummy1 removed [ 11.423756][ T269] team0 (unregistering): Port device dummy2 removed [ 11.504464][ T244] teamd (244) used greatest stack depth: 23848 bytes left