[ 1208.568705][ T6759] lag2: Mode changed to "loadbalance" [ 1208.751512][ T6762] [ 1208.751719][ T6762] ====================================================== [ 1208.751919][ T6762] WARNING: possible circular locking dependency detected [ 1208.752104][ T6762] 6.14.0-rc2-virtme #1 Not tainted [ 1208.752258][ T6762] ------------------------------------------------------ [ 1208.752461][ T6762] ip/6762 is trying to acquire lock: [ 1208.752610][ T6762] ffff88800a981cb0 (&dev->lock){+.+.}-{4:4}, at: __dev_open+0x57e/0x710 [ 1208.752857][ T6762] [ 1208.752857][ T6762] but task is already holding lock: [ 1208.753081][ T6762] ffff88800b8fad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave+0x33/0x80 [ 1208.753376][ T6762] [ 1208.753376][ T6762] which lock already depends on the new lock. [ 1208.753376][ T6762] [ 1208.753672][ T6762] [ 1208.753672][ T6762] the existing dependency chain (in reverse order) is: [ 1208.753924][ T6762] [ 1208.753924][ T6762] -> #1 (team->team_lock_key){+.+.}-{4:4}: [ 1208.754147][ T6762] __lock_acquire+0xb9a/0x1680 [ 1208.754302][ T6762] lock_acquire.part.0+0xeb/0x330 [ 1208.754450][ T6762] __mutex_lock+0x169/0xc40 [ 1208.754664][ T6762] team_set_mac_address+0x120/0x250 [ 1208.754876][ T6762] netif_set_mac_address+0x28a/0x410 [ 1208.755152][ T6762] do_setlink.constprop.0+0x1980/0x25f0 [ 1208.755412][ T6762] rtnl_setlink+0x2b5/0x5a0 [ 1208.755648][ T6762] rtnetlink_rcv_msg+0x712/0xc10 [ 1208.755877][ T6762] netlink_rcv_skb+0x130/0x360 [ 1208.756111][ T6762] netlink_unicast+0x44b/0x710 [ 1208.756349][ T6762] netlink_sendmsg+0x723/0xbe0 [ 1208.756578][ T6762] __sys_sendto+0x3c3/0x450 [ 1208.756809][ T6762] __x64_sys_sendto+0xe0/0x1c0 [ 1208.757049][ T6762] do_syscall_64+0xc1/0x1d0 [ 1208.757289][ T6762] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1208.757582][ T6762] [ 1208.757582][ T6762] -> #0 (&dev->lock){+.+.}-{4:4}: [ 1208.757942][ T6762] check_prev_add+0x182/0xce0 [ 1208.758178][ T6762] validate_chain+0x7bd/0xae0 [ 1208.758413][ T6762] __lock_acquire+0xb9a/0x1680 [ 1208.758651][ T6762] lock_acquire.part.0+0xeb/0x330 [ 1208.758888][ T6762] __mutex_lock+0x169/0xc40 [ 1208.759124][ T6762] __dev_open+0x57e/0x710 [ 1208.759355][ T6762] netif_open+0xc9/0x130 [ 1208.759588][ T6762] dev_open+0x9f/0x1a0 [ 1208.759825][ T6762] team_port_add+0x90a/0x1ce0 [ 1208.760072][ T6762] team_add_slave+0x41/0x80 [ 1208.760312][ T6762] do_set_master+0x302/0x610 [ 1208.760546][ T6762] do_setlink.constprop.0+0x87b/0x25f0 [ 1208.760847][ T6762] rtnl_newlink+0x69c/0xa70 [ 1208.761088][ T6762] rtnetlink_rcv_msg+0x712/0xc10 [ 1208.761321][ T6762] netlink_rcv_skb+0x130/0x360 [ 1208.761557][ T6762] netlink_unicast+0x44b/0x710 [ 1208.761799][ T6762] netlink_sendmsg+0x723/0xbe0 [ 1208.762042][ T6762] ____sys_sendmsg+0x7ac/0xa10 [ 1208.762281][ T6762] ___sys_sendmsg+0xee/0x170 [ 1208.762515][ T6762] __sys_sendmsg+0x109/0x1a0 [ 1208.762746][ T6762] do_syscall_64+0xc1/0x1d0 [ 1208.762982][ T6762] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1208.763287][ T6762] [ 1208.763287][ T6762] other info that might help us debug this: [ 1208.763287][ T6762] [ 1208.763751][ T6762] Possible unsafe locking scenario: [ 1208.763751][ T6762] [ 1208.764092][ T6762] CPU0 CPU1 [ 1208.764328][ T6762] ---- ---- [ 1208.764561][ T6762] lock(team->team_lock_key); [ 1208.764802][ T6762] lock(&dev->lock); [ 1208.765103][ T6762] lock(team->team_lock_key); [ 1208.765463][ T6762] lock(&dev->lock); [ 1208.765653][ T6762] [ 1208.765653][ T6762] *** DEADLOCK *** [ 1208.765653][ T6762] [ 1208.765993][ T6762] 2 locks held by ip/6762: [ 1208.766230][ T6762] #0: ffffffff9bbeeb48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 1208.766675][ T6762] #1: ffff88800b8fad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave+0x33/0x80 [ 1208.767114][ T6762] [ 1208.767114][ T6762] stack backtrace: [ 1208.767410][ T6762] CPU: 0 UID: 0 PID: 6762 Comm: ip Not tainted 6.14.0-rc2-virtme #1 [ 1208.767418][ T6762] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1208.767421][ T6762] Call Trace: [ 1208.767424][ T6762] [ 1208.767426][ T6762] dump_stack_lvl+0x82/0xd0 [ 1208.767436][ T6762] print_circular_bug+0x1b7/0x240 [ 1208.767445][ T6762] check_noncircular+0x2f9/0x3e0 [ 1208.767453][ T6762] ? __pfx_check_noncircular+0x10/0x10 [ 1208.767459][ T6762] ? find_held_lock+0x2c/0x110 [ 1208.767469][ T6762] ? alloc_chain_hlocks+0x4e0/0x720 [ 1208.767475][ T6762] check_prev_add+0x182/0xce0 [ 1208.767484][ T6762] validate_chain+0x7bd/0xae0 [ 1208.767493][ T6762] ? stack_depot_save_flags+0x27e/0x440 [ 1208.767501][ T6762] ? __pfx_validate_chain+0x10/0x10 [ 1208.767507][ T6762] ? hlock_class+0x4e/0x130 [ 1208.767511][ T6762] ? mark_lock+0x38/0x3e0 [ 1208.767519][ T6762] __lock_acquire+0xb9a/0x1680 [ 1208.767529][ T6762] ? mark_lock+0x38/0x3e0 [ 1208.767536][ T6762] lock_acquire.part.0+0xeb/0x330 [ 1208.767542][ T6762] ? __dev_open+0x57e/0x710 [ 1208.767548][ T6762] ? validate_chain+0x162/0xae0 [ 1208.767554][ T6762] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1208.767560][ T6762] ? trace_lock_acquire+0x14c/0x1f0 [ 1208.767567][ T6762] ? lock_acquire+0x32/0xc0 [ 1208.767572][ T6762] ? __dev_open+0x57e/0x710 [ 1208.767578][ T6762] __mutex_lock+0x169/0xc40 [ 1208.767583][ T6762] ? __dev_open+0x57e/0x710 [ 1208.767589][ T6762] ? __dev_open+0x57e/0x710 [ 1208.767594][ T6762] ? __pfx___mutex_lock+0x10/0x10 [ 1208.767603][ T6762] ? mutex_is_locked+0x1c/0x60 [ 1208.767608][ T6762] ? rtnl_is_locked+0x15/0x20 [ 1208.767616][ T6762] ? mirred_device_event+0x3d/0x1e0 [act_mirred] [ 1208.767631][ T6762] ? __dev_open+0x57e/0x710 [ 1208.767635][ T6762] __dev_open+0x57e/0x710 [ 1208.767638][ T6762] ? mark_held_locks+0x9e/0xe0 [ 1208.767644][ T6762] ? __pfx___dev_open+0x10/0x10 [ 1208.767649][ T6762] ? trace_percpu_alloc_percpu+0x149/0x1d0 [ 1208.767658][ T6762] netif_open+0xc9/0x130 [ 1208.767663][ T6762] ? __pfx_netif_open+0x10/0x10 [ 1208.767671][ T6762] dev_open+0x9f/0x1a0 [ 1208.767678][ T6762] team_port_add+0x90a/0x1ce0 [ 1208.767686][ T6762] ? __pfx_team_port_add+0x10/0x10 [ 1208.767692][ T6762] ? rcu_read_lock_any_held+0x43/0xb0 [ 1208.767699][ T6762] ? validate_chain+0x1fe/0xae0 [ 1208.767706][ T6762] team_add_slave+0x41/0x80 [ 1208.767713][ T6762] do_set_master+0x302/0x610 [ 1208.767721][ T6762] do_setlink.constprop.0+0x87b/0x25f0 [ 1208.767730][ T6762] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 1208.767737][ T6762] ? lock_acquire.part.0+0xeb/0x330 [ 1208.767742][ T6762] ? rtnl_newlink+0x653/0xa70 [ 1208.767748][ T6762] ? rtnl_newlink+0xb9/0xa70 [ 1208.767752][ T6762] ? rtnetlink_rcv_msg+0x712/0xc10 [ 1208.767758][ T6762] ? __mutex_trylock_common+0xfa/0x260 [ 1208.767764][ T6762] ? __pfx___mutex_trylock_common+0x10/0x10 [ 1208.767771][ T6762] ? lock_acquire+0x32/0xc0 [ 1208.767777][ T6762] ? trace_contention_end+0xef/0x150 [ 1208.767784][ T6762] ? __mutex_lock+0x190/0xc40 [ 1208.767790][ T6762] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 1208.767796][ T6762] ? rtnl_newlink+0x653/0xa70 [ 1208.767803][ T6762] ? __pfx___mutex_lock+0x10/0x10 [ 1208.767806][ T6762] ? __pfx_validate_nla+0x10/0x10 [ 1208.767814][ T6762] ? trace_cap_capable+0x11e/0x1a0 [ 1208.767823][ T6762] ? __rtnl_newlink+0x3f2/0xa80 [ 1208.767831][ T6762] rtnl_newlink+0x69c/0xa70 [ 1208.767840][ T6762] ? __pfx_rtnl_newlink+0x10/0x10 [ 1208.767845][ T6762] ? find_held_lock+0x2c/0x110 [ 1208.767854][ T6762] ? __pfx___lock_release+0x10/0x10 [ 1208.767859][ T6762] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1208.767868][ T6762] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 1208.767874][ T6762] ? __pfx_rtnl_newlink+0x10/0x10 [ 1208.767880][ T6762] rtnetlink_rcv_msg+0x712/0xc10 [ 1208.767887][ T6762] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 1208.767893][ T6762] ? hlock_class+0x4e/0x130 [ 1208.767897][ T6762] ? mark_lock+0x38/0x3e0 [ 1208.767904][ T6762] ? __lock_acquire+0xb9a/0x1680 [ 1208.767912][ T6762] netlink_rcv_skb+0x130/0x360 [ 1208.767919][ T6762] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 1208.767926][ T6762] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 1208.767940][ T6762] ? netlink_deliver_tap+0x13e/0x340 [ 1208.767947][ T6762] ? netlink_deliver_tap+0xc3/0x340 [ 1208.767954][ T6762] netlink_unicast+0x44b/0x710 [ 1208.767961][ T6762] ? __pfx_netlink_unicast+0x10/0x10 [ 1208.767967][ T6762] ? find_held_lock+0x2c/0x110 [ 1208.767977][ T6762] netlink_sendmsg+0x723/0xbe0 [ 1208.767985][ T6762] ? __pfx_netlink_sendmsg+0x10/0x10 [ 1208.767996][ T6762] ____sys_sendmsg+0x7ac/0xa10 [ 1208.768003][ T6762] ? __pfx_____sys_sendmsg+0x10/0x10 [ 1208.768008][ T6762] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 1208.768022][ T6762] ___sys_sendmsg+0xee/0x170 [ 1208.768030][ T6762] ? __pfx____sys_sendmsg+0x10/0x10 [ 1208.768038][ T6762] ? kasan_save_stack+0x34/0x50 [ 1208.768045][ T6762] ? kasan_save_stack+0x24/0x50 [ 1208.768049][ T6762] ? kasan_record_aux_stack+0x8c/0xa0 [ 1208.768054][ T6762] ? __call_rcu_common.constprop.0+0xa1/0x5b0 [ 1208.768060][ T6762] ? __x64_sys_close+0x7c/0xd0 [ 1208.768067][ T6762] ? do_syscall_64+0xc1/0x1d0 [ 1208.768071][ T6762] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1208.768078][ T6762] ? __lock_acquire+0xb9a/0x1680 [ 1208.768084][ T6762] ? lock_downgrade+0x52/0x110 [ 1208.768092][ T6762] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 1208.768099][ T6762] ? find_held_lock+0x2c/0x110 [ 1208.768106][ T6762] ? __lock_release+0x103/0x460 [ 1208.768111][ T6762] ? __virt_addr_valid+0x22b/0x430 [ 1208.768117][ T6762] ? __pfx___lock_release+0x10/0x10 [ 1208.768122][ T6762] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1208.768130][ T6762] __sys_sendmsg+0x109/0x1a0 [ 1208.768134][ T6762] ? __pfx___sys_sendmsg+0x10/0x10 [ 1208.768148][ T6762] do_syscall_64+0xc1/0x1d0 [ 1208.768153][ T6762] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1208.768158][ T6762] RIP: 0033:0x7f468050a9a7 [ 1208.768165][ T6762] 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 [ 1208.768170][ T6762] RSP: 002b:00007ffd7267d0a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1208.768176][ T6762] RAX: ffffffffffffffda RBX: 00007ffd7267d7d0 RCX: 00007f468050a9a7 [ 1208.768180][ T6762] RDX: 0000000000000000 RSI: 00007ffd7267d110 RDI: 0000000000000005 [ 1208.768182][ T6762] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 1208.768185][ T6762] R10: 000000001be4f910 R11: 0000000000000246 R12: 0000000000000004 [ 1208.768189][ T6762] R13: 0000000067b301ec R14: 0000000000498600 R15: 0000000000000000 [ 1208.768199][ T6762] [ 1208.799148][ T6762] lag2: Port device veth3 added [ 1208.992202][ T6772] lag2: Port device veth5 added [ 1209.120162][ T6774] 8021q: adding VLAN 0 to HW filter on device lag2 [ 1209.178033][ T6775] 8021q: adding VLAN 0 to HW filter on device lag2 [ 1210.626287][ T6802] lag1: Mode changed to "loadbalance" [ 1210.765770][ T6805] lag1: Port device veth2 added [ 1210.986337][ T6808] lag1: Port device veth4 added [ 1211.113551][ T6810] 8021q: adding VLAN 0 to HW filter on device lag1 [ 1217.198804][ T6836] lag2: Port device veth5 removed [ 1221.264137][ T6846] lag2: Port device veth3 removed [ 1226.288552][ T6876] lag2: Mode changed to "loadbalance" [ 1226.429926][ T6879] lag2: Port device veth3 added [ 1226.630708][ T6884] lag2: Port device veth5 added [ 1226.782618][ T6886] 8021q: adding VLAN 0 to HW filter on device lag2 [ 1226.852912][ T6887] 8021q: adding VLAN 0 to HW filter on device lag2 [ 1233.004119][ T6921] lag2: Port device veth3 removed [ 1236.972511][ T6931] lag2: Port device veth5 removed [ 1241.824219][ T6961] lag2: Mode changed to "loadbalance" [ 1241.986155][ T6964] lag2: Port device veth3 added [ 1242.207000][ T6969] lag2: Port device veth5 added [ 1242.325074][ T6971] 8021q: adding VLAN 0 to HW filter on device lag2 [ 1242.389983][ T6972] 8021q: adding VLAN 0 to HW filter on device lag2 [ 1248.534084][ T6802] lag1: Port device veth4 removed [ 1248.538586][ T6802] lag1: Port device veth2 removed [ 1250.074321][ T6961] lag2: Port device veth5 removed [ 1250.077454][ T6961] lag2: Port device veth3 removed