[ 101.799800][ T876] lag: Mode changed to "loadbalance" [ 101.965832][ T879] [ 101.965947][ T879] ====================================================== [ 101.966133][ T879] WARNING: possible circular locking dependency detected [ 101.966318][ T879] 6.14.0-rc2-virtme #1 Not tainted [ 101.966472][ T879] ------------------------------------------------------ [ 101.966668][ T879] ip/879 is trying to acquire lock: [ 101.966823][ T879] ffff888008a24cb0 (&dev->lock){+.+.}-{4:4}, at: __dev_open+0x57e/0x710 [ 101.967060][ T879] [ 101.967060][ T879] but task is already holding lock: [ 101.967280][ T879] ffff88802ab7ad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave+0x33/0x80 [ 101.967562][ T879] [ 101.967562][ T879] which lock already depends on the new lock. [ 101.967562][ T879] [ 101.967858][ T879] [ 101.967858][ T879] the existing dependency chain (in reverse order) is: [ 101.968118][ T879] [ 101.968118][ T879] -> #1 (team->team_lock_key){+.+.}-{4:4}: [ 101.968364][ T879] __lock_acquire+0xb9a/0x1680 [ 101.968522][ T879] lock_acquire.part.0+0xeb/0x330 [ 101.968674][ T879] __mutex_lock+0x169/0xc40 [ 101.968824][ T879] team_set_mac_address+0x120/0x250 [ 101.968980][ T879] netif_set_mac_address+0x28a/0x410 [ 101.969164][ T879] do_setlink.constprop.0+0x1980/0x25f0 [ 101.969353][ T879] rtnl_setlink+0x2b5/0x5a0 [ 101.969502][ T879] rtnetlink_rcv_msg+0x712/0xc10 [ 101.969652][ T879] netlink_rcv_skb+0x130/0x360 [ 101.969812][ T879] netlink_unicast+0x44b/0x710 [ 101.969962][ T879] netlink_sendmsg+0x723/0xbe0 [ 101.970113][ T879] __sys_sendto+0x3c3/0x450 [ 101.970264][ T879] __x64_sys_sendto+0xe0/0x1c0 [ 101.970450][ T879] do_syscall_64+0xc1/0x1d0 [ 101.970617][ T879] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 101.970823][ T879] [ 101.970823][ T879] -> #0 (&dev->lock){+.+.}-{4:4}: [ 101.971048][ T879] check_prev_add+0x182/0xce0 [ 101.971207][ T879] validate_chain+0x7bd/0xae0 [ 101.971357][ T879] __lock_acquire+0xb9a/0x1680 [ 101.971506][ T879] lock_acquire.part.0+0xeb/0x330 [ 101.971654][ T879] __mutex_lock+0x169/0xc40 [ 101.971807][ T879] __dev_open+0x57e/0x710 [ 101.971956][ T879] netif_open+0xc9/0x130 [ 101.972113][ T879] dev_open+0x9f/0x1a0 [ 101.972267][ T879] team_port_add+0x90a/0x1ce0 [ 101.972427][ T879] team_add_slave+0x41/0x80 [ 101.972585][ T879] do_set_master+0x302/0x610 [ 101.972737][ T879] do_setlink.constprop.0+0x87b/0x25f0 [ 101.972924][ T879] rtnl_newlink+0x69c/0xa70 [ 101.973075][ T879] rtnetlink_rcv_msg+0x712/0xc10 [ 101.973226][ T879] netlink_rcv_skb+0x130/0x360 [ 101.973380][ T879] netlink_unicast+0x44b/0x710 [ 101.973531][ T879] netlink_sendmsg+0x723/0xbe0 [ 101.973683][ T879] ____sys_sendmsg+0x7ac/0xa10 [ 101.973832][ T879] ___sys_sendmsg+0xee/0x170 [ 101.973981][ T879] __sys_sendmsg+0x109/0x1a0 [ 101.974134][ T879] do_syscall_64+0xc1/0x1d0 [ 101.974287][ T879] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 101.974475][ T879] [ 101.974475][ T879] other info that might help us debug this: [ 101.974475][ T879] [ 101.974766][ T879] Possible unsafe locking scenario: [ 101.974766][ T879] [ 101.974988][ T879] CPU0 CPU1 [ 101.975137][ T879] ---- ---- [ 101.975288][ T879] lock(team->team_lock_key); [ 101.975444][ T879] lock(&dev->lock); [ 101.975633][ T879] lock(team->team_lock_key); [ 101.975856][ T879] lock(&dev->lock); [ 101.975972][ T879] [ 101.975972][ T879] *** DEADLOCK *** [ 101.975972][ T879] [ 101.976192][ T879] 2 locks held by ip/879: [ 101.976308][ T879] #0: ffffffffad7eeb48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 101.976583][ T879] #1: ffff88802ab7ad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave+0x33/0x80 [ 101.976856][ T879] [ 101.976856][ T879] stack backtrace: [ 101.977040][ T879] CPU: 3 UID: 0 PID: 879 Comm: ip Not tainted 6.14.0-rc2-virtme #1 [ 101.977045][ T879] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 101.977048][ T879] Call Trace: [ 101.977050][ T879] [ 101.977052][ T879] dump_stack_lvl+0x82/0xd0 [ 101.977059][ T879] print_circular_bug+0x1b7/0x240 [ 101.977064][ T879] check_noncircular+0x2f9/0x3e0 [ 101.977067][ T879] ? find_held_lock+0x2c/0x110 [ 101.977072][ T879] ? __pfx_check_noncircular+0x10/0x10 [ 101.977075][ T879] ? stack_depot_save_flags+0x27e/0x440 [ 101.977081][ T879] ? __pfx___lock_release+0x10/0x10 [ 101.977087][ T879] ? alloc_chain_hlocks+0x4e0/0x720 [ 101.977091][ T879] check_prev_add+0x182/0xce0 [ 101.977094][ T879] ? validate_chain+0x1fe/0xae0 [ 101.977098][ T879] validate_chain+0x7bd/0xae0 [ 101.977102][ T879] ? mark_lock+0x38/0x3e0 [ 101.977105][ T879] ? __pfx_validate_chain+0x10/0x10 [ 101.977108][ T879] ? hlock_class+0x4e/0x130 [ 101.977110][ T879] ? mark_lock+0x38/0x3e0 [ 101.977114][ T879] __lock_acquire+0xb9a/0x1680 [ 101.977120][ T879] lock_acquire.part.0+0xeb/0x330 [ 101.977123][ T879] ? __dev_open+0x57e/0x710 [ 101.977126][ T879] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 101.977130][ T879] ? trace_lock_acquire+0x14c/0x1f0 [ 101.977133][ T879] ? lock_acquire+0x32/0xc0 [ 101.977135][ T879] ? __dev_open+0x57e/0x710 [ 101.977139][ T879] __mutex_lock+0x169/0xc40 [ 101.977141][ T879] ? __dev_open+0x57e/0x710 [ 101.977143][ T879] ? __lock_release+0x103/0x460 [ 101.977146][ T879] ? __pfx___lock_release+0x10/0x10 [ 101.977149][ T879] ? __dev_open+0x57e/0x710 [ 101.977151][ T879] ? hlock_class+0x4e/0x130 [ 101.977153][ T879] ? __pfx___mutex_lock+0x10/0x10 [ 101.977158][ T879] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 101.977163][ T879] ? __dev_open+0x57e/0x710 [ 101.977165][ T879] __dev_open+0x57e/0x710 [ 101.977168][ T879] ? mark_held_locks+0x9e/0xe0 [ 101.977170][ T879] ? __pfx___dev_open+0x10/0x10 [ 101.977173][ T879] ? trace_percpu_alloc_percpu+0x149/0x1d0 [ 101.977178][ T879] netif_open+0xc9/0x130 [ 101.977181][ T879] ? __pfx_netif_open+0x10/0x10 [ 101.977185][ T879] dev_open+0x9f/0x1a0 [ 101.977189][ T879] team_port_add+0x90a/0x1ce0 [ 101.977193][ T879] ? __pfx_team_port_add+0x10/0x10 [ 101.977197][ T879] ? rcu_read_lock_any_held+0x43/0xb0 [ 101.977201][ T879] ? validate_chain+0x1fe/0xae0 [ 101.977206][ T879] team_add_slave+0x41/0x80 [ 101.977210][ T879] do_set_master+0x302/0x610 [ 101.977214][ T879] do_setlink.constprop.0+0x87b/0x25f0 [ 101.977218][ T879] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 101.977222][ T879] ? lock_acquire.part.0+0xeb/0x330 [ 101.977226][ T879] ? rtnl_newlink+0x653/0xa70 [ 101.977229][ T879] ? rtnl_newlink+0xb9/0xa70 [ 101.977232][ T879] ? rtnetlink_rcv_msg+0x712/0xc10 [ 101.977235][ T879] ? __mutex_trylock_common+0xfa/0x260 [ 101.977239][ T879] ? __pfx___mutex_trylock_common+0x10/0x10 [ 101.977243][ T879] ? lock_acquire+0x32/0xc0 [ 101.977246][ T879] ? trace_contention_end+0xef/0x150 [ 101.977250][ T879] ? __mutex_lock+0x190/0xc40 [ 101.977253][ T879] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 101.977256][ T879] ? rtnl_newlink+0x653/0xa70 [ 101.977259][ T879] ? __pfx___mutex_lock+0x10/0x10 [ 101.977261][ T879] ? __pfx_validate_nla+0x10/0x10 [ 101.977266][ T879] ? trace_cap_capable+0x11e/0x1a0 [ 101.977271][ T879] ? __rtnl_newlink+0x3f2/0xa80 [ 101.977276][ T879] rtnl_newlink+0x69c/0xa70 [ 101.977280][ T879] ? __pfx_rtnl_newlink+0x10/0x10 [ 101.977282][ T879] ? find_held_lock+0x2c/0x110 [ 101.977287][ T879] ? __pfx___lock_release+0x10/0x10 [ 101.977290][ T879] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 101.977295][ T879] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 101.977298][ T879] ? __pfx_rtnl_newlink+0x10/0x10 [ 101.977301][ T879] rtnetlink_rcv_msg+0x712/0xc10 [ 101.977304][ T879] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 101.977307][ T879] ? hlock_class+0x4e/0x130 [ 101.977309][ T879] ? mark_lock+0x38/0x3e0 [ 101.977313][ T879] ? __lock_acquire+0xb9a/0x1680 [ 101.977317][ T879] netlink_rcv_skb+0x130/0x360 [ 101.977320][ T879] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 101.977323][ T879] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 101.977330][ T879] ? netlink_deliver_tap+0x13e/0x340 [ 101.977334][ T879] ? netlink_deliver_tap+0xc3/0x340 [ 101.977337][ T879] netlink_unicast+0x44b/0x710 [ 101.977341][ T879] ? __pfx_netlink_unicast+0x10/0x10 [ 101.977345][ T879] ? find_held_lock+0x2c/0x110 [ 101.977350][ T879] netlink_sendmsg+0x723/0xbe0 [ 101.977354][ T879] ? __pfx_netlink_sendmsg+0x10/0x10 [ 101.977360][ T879] ____sys_sendmsg+0x7ac/0xa10 [ 101.977363][ T879] ? __pfx_____sys_sendmsg+0x10/0x10 [ 101.977366][ T879] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 101.977372][ T879] ___sys_sendmsg+0xee/0x170 [ 101.977376][ T879] ? __pfx____sys_sendmsg+0x10/0x10 [ 101.977380][ T879] ? kasan_save_stack+0x34/0x50 [ 101.977385][ T879] ? kasan_save_stack+0x24/0x50 [ 101.977387][ T879] ? kasan_record_aux_stack+0x8c/0xa0 [ 101.977391][ T879] ? __call_rcu_common.constprop.0+0xa1/0x5b0 [ 101.977396][ T879] ? __x64_sys_close+0x7c/0xd0 [ 101.977399][ T879] ? do_syscall_64+0xc1/0x1d0 [ 101.977401][ T879] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 101.977404][ T879] ? __lock_acquire+0xb9a/0x1680 [ 101.977408][ T879] ? lock_downgrade+0x52/0x110 [ 101.977411][ T879] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 101.977415][ T879] ? find_held_lock+0x2c/0x110 [ 101.977419][ T879] ? __lock_release+0x103/0x460 [ 101.977422][ T879] ? __virt_addr_valid+0x22b/0x430 [ 101.977426][ T879] ? __pfx___lock_release+0x10/0x10 [ 101.977429][ T879] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 101.977433][ T879] __sys_sendmsg+0x109/0x1a0 [ 101.977437][ T879] ? __pfx___sys_sendmsg+0x10/0x10 [ 101.977444][ T879] do_syscall_64+0xc1/0x1d0 [ 101.977447][ T879] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 101.977450][ T879] RIP: 0033:0x7fa80cd7c9a7 [ 101.977454][ T879] 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 [ 101.977457][ T879] RSP: 002b:00007ffdb8065a58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 101.977460][ T879] RAX: ffffffffffffffda RBX: 00007ffdb8066180 RCX: 00007fa80cd7c9a7 [ 101.977462][ T879] RDX: 0000000000000000 RSI: 00007ffdb8065ac0 RDI: 0000000000000005 [ 101.977464][ T879] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 101.977465][ T879] R10: 000000002c625910 R11: 0000000000000246 R12: 0000000000000004 [ 101.977467][ T879] R13: 0000000067b32c35 R14: 0000000000498600 R15: 0000000000000000 [ 101.977472][ T879] [ 101.999092][ T879] lag: Port device veth2 added [ 102.012455][ T879] ip (879) used greatest stack depth: 23504 bytes left [ 102.210698][ T889] lag: Port device veth4 added [ 102.316030][ T891] 8021q: adding VLAN 0 to HW filter on device lag [ 102.380575][ T892] br1: port 1(lag) entered blocking state [ 102.380783][ T892] br1: port 1(lag) entered disabled state [ 102.380994][ T892] lag: entered allmulticast mode [ 102.381145][ T892] veth2: entered allmulticast mode [ 102.381311][ T892] veth4: entered allmulticast mode [ 102.384443][ T892] veth2: entered promiscuous mode [ 102.384713][ T892] veth4: entered promiscuous mode [ 102.443049][ T893] br1: port 1(lag) entered blocking state [ 102.443319][ T893] br1: port 1(lag) entered forwarding state [ 108.910150][ T927] Mirror/redirect action on [ 123.280222][ T329] br1: port 1(lag) entered disabled state [ 129.089175][ T151] br1: port 1(lag) entered blocking state [ 129.089529][ T151] br1: port 1(lag) entered forwarding state [ 143.898371][ T151] br1: port 1(lag) entered disabled state [ 149.696536][ T37] br1: port 1(lag) entered blocking state [ 149.696732][ T37] br1: port 1(lag) entered forwarding state [ 150.270858][ T1031] lag: left allmulticast mode [ 150.271054][ T1031] veth2: left allmulticast mode [ 150.271209][ T1031] veth4: left allmulticast mode [ 150.271420][ T1031] veth2: left promiscuous mode [ 150.271584][ T1031] veth4: left promiscuous mode [ 150.271737][ T1031] br1: port 1(lag) entered disabled state [ 150.349649][ T876] lag: Port device veth4 removed [ 150.352620][ T876] lag: Port device veth2 removed