[ 13.325463][ T295] 8021q: 802.1Q VLAN Support v1.8 [ 14.961898][ T320] lag2: Mode changed to "loadbalance" [ 15.152034][ T323] lag2: Port device veth3 added [ 15.469791][ T326] lag2: Port device veth5 added [ 15.645239][ T328] 8021q: adding VLAN 0 to HW filter on device lag2 [ 15.645755][ T328] [ 15.645846][ T328] ====================================================== [ 15.646077][ T328] WARNING: possible circular locking dependency detected [ 15.646310][ T328] 6.13.0-rc5-virtme #1 Not tainted [ 15.646508][ T328] ------------------------------------------------------ [ 15.646716][ T328] ip/328 is trying to acquire lock: [ 15.646893][ T328] ffff88800d67ad80 (team->team_lock_key){+.+.}-{4:4}, at: team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.647212][ T328] [ 15.647212][ T328] but task is already holding lock: [ 15.647477][ T328] ffffffff893d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 15.647846][ T328] [ 15.647846][ T328] which lock already depends on the new lock. [ 15.647846][ T328] [ 15.648201][ T328] [ 15.648201][ T328] the existing dependency chain (in reverse order) is: [ 15.648498][ T328] [ 15.648498][ T328] -> #1 ((netdev_chain).rwsem){++++}-{4:4}: [ 15.648754][ T328] __lock_acquire+0xb9a/0x1680 [ 15.648928][ T328] lock_acquire.part.0+0xeb/0x330 [ 15.649092][ T328] down_read+0x9f/0x340 [ 15.649264][ T328] blocking_notifier_call_chain+0x50/0x90 [ 15.649472][ T328] __dev_open+0x15c/0x430 [ 15.649652][ T328] dev_open+0xc9/0x130 [ 15.649827][ T328] team_port_add+0x90a/0x1ce0 [ 15.649995][ T328] team_add_slave+0x41/0x80 [ 15.650164][ T328] do_setlink.constprop.0+0x80e/0x2300 [ 15.650394][ T328] rtnl_newlink+0x69c/0xa70 [ 15.650566][ T328] rtnetlink_rcv_msg+0x712/0xc10 [ 15.650747][ T328] netlink_rcv_skb+0x130/0x360 [ 15.650914][ T328] netlink_unicast+0x44b/0x710 [ 15.651079][ T328] netlink_sendmsg+0x723/0xbe0 [ 15.651250][ T328] ____sys_sendmsg+0x7ac/0xa10 [ 15.651417][ T328] ___sys_sendmsg+0xee/0x170 [ 15.651582][ T328] __sys_sendmsg+0x109/0x1a0 [ 15.651744][ T328] do_syscall_64+0xc1/0x1d0 [ 15.651909][ T328] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.652125][ T328] [ 15.652125][ T328] -> #0 (team->team_lock_key){+.+.}-{4:4}: [ 15.652372][ T328] check_prev_add+0x182/0xce0 [ 15.652543][ T328] validate_chain+0x7bd/0xae0 [ 15.652708][ T328] __lock_acquire+0xb9a/0x1680 [ 15.652874][ T328] lock_acquire.part.0+0xeb/0x330 [ 15.653041][ T328] __mutex_lock+0x169/0xbc0 [ 15.653211][ T328] team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.653379][ T328] vlan_vid_add+0x2bc/0x860 [ 15.653546][ T328] vlan_device_event+0x2f4/0x2130 [8021q] [ 15.653779][ T328] notifier_call_chain+0xcd/0x150 [ 15.653944][ T328] blocking_notifier_call_chain+0x66/0x90 [ 15.654149][ T328] __dev_notify_flags+0xe6/0x250 [ 15.654315][ T328] dev_change_flags+0xec/0x160 [ 15.654478][ T328] do_setlink.constprop.0+0x79d/0x2300 [ 15.654682][ T328] rtnl_newlink+0x69c/0xa70 [ 15.654852][ T328] rtnetlink_rcv_msg+0x712/0xc10 [ 15.655014][ T328] netlink_rcv_skb+0x130/0x360 [ 15.655177][ T328] netlink_unicast+0x44b/0x710 [ 15.655337][ T328] netlink_sendmsg+0x723/0xbe0 [ 15.655502][ T328] ____sys_sendmsg+0x7ac/0xa10 [ 15.655666][ T328] ___sys_sendmsg+0xee/0x170 [ 15.655833][ T328] __sys_sendmsg+0x109/0x1a0 [ 15.655995][ T328] do_syscall_64+0xc1/0x1d0 [ 15.656156][ T328] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.656360][ T328] [ 15.656360][ T328] other info that might help us debug this: [ 15.656360][ T328] [ 15.656688][ T328] Possible unsafe locking scenario: [ 15.656688][ T328] [ 15.656925][ T328] CPU0 CPU1 [ 15.657092][ T328] ---- ---- [ 15.657252][ T328] rlock((netdev_chain).rwsem); [ 15.657417][ T328] lock(team->team_lock_key); [ 15.657660][ T328] lock((netdev_chain).rwsem); [ 15.657900][ T328] lock(team->team_lock_key); [ 15.658063][ T328] [ 15.658063][ T328] *** DEADLOCK *** [ 15.658063][ T328] [ 15.658305][ T328] 2 locks held by ip/328: [ 15.658431][ T328] #0: ffffffff893e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 15.658724][ T328] #1: ffffffff893d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 15.659050][ T328] [ 15.659050][ T328] stack backtrace: [ 15.659251][ T328] CPU: 3 UID: 0 PID: 328 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 15.659506][ T328] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.659708][ T328] Call Trace: [ 15.659835][ T328] [ 15.659921][ T328] dump_stack_lvl+0x82/0xd0 [ 15.660091][ T328] print_circular_bug+0x2e2/0x4b0 [ 15.660255][ T328] check_noncircular+0x2f9/0x3e0 [ 15.660418][ T328] ? __pfx_check_noncircular+0x10/0x10 [ 15.660589][ T328] ? rcu_read_lock_any_held+0x43/0xb0 [ 15.660755][ T328] ? validate_chain+0x1fe/0xae0 [ 15.660920][ T328] ? alloc_chain_hlocks+0x4e0/0x720 [ 15.661087][ T328] check_prev_add+0x182/0xce0 [ 15.661253][ T328] validate_chain+0x7bd/0xae0 [ 15.661420][ T328] ? find_held_lock+0x2c/0x110 [ 15.661585][ T328] ? __pfx_validate_chain+0x10/0x10 [ 15.661753][ T328] ? hlock_class+0x4e/0x130 [ 15.661915][ T328] ? mark_lock+0x38/0x3e0 [ 15.662042][ T328] __lock_acquire+0xb9a/0x1680 [ 15.662206][ T328] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 15.662408][ T328] lock_acquire.part.0+0xeb/0x330 [ 15.662571][ T328] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.662738][ T328] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.662904][ T328] ? trace_lock_acquire+0x14c/0x1f0 [ 15.663069][ T328] ? lock_acquire+0x32/0xc0 [ 15.663229][ T328] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.663397][ T328] __mutex_lock+0x169/0xbc0 [ 15.663561][ T328] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.663723][ T328] ? __create_object+0x5e/0xb0 [ 15.663888][ T328] ? __pfx___lock_release+0x10/0x10 [ 15.664113][ T328] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.664269][ T328] ? __pfx___mutex_lock+0x10/0x10 [ 15.664421][ T328] ? mark_held_locks+0x9e/0xe0 [ 15.664575][ T328] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 15.664796][ T328] ? __create_object+0x5e/0xb0 [ 15.664949][ T328] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.665102][ T328] team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.665263][ T328] vlan_vid_add+0x2bc/0x860 [ 15.665421][ T328] vlan_device_event+0x2f4/0x2130 [8021q] [ 15.665580][ T328] ? __pfx_vlan_device_event+0x10/0x10 [8021q] [ 15.665775][ T328] ? packet_notifier+0x3b0/0x810 [ 15.665931][ T328] notifier_call_chain+0xcd/0x150 [ 15.666086][ T328] blocking_notifier_call_chain+0x66/0x90 [ 15.666241][ T328] __dev_notify_flags+0xe6/0x250 [ 15.666396][ T328] ? __pfx___dev_notify_flags+0x10/0x10 [ 15.666572][ T328] ? __pfx___dev_change_flags+0x10/0x10 [ 15.666725][ T328] ? unwind_get_return_address+0x5e/0xa0 [ 15.666888][ T328] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 15.667079][ T328] ? __pfx_validate_chain+0x10/0x10 [ 15.667233][ T328] dev_change_flags+0xec/0x160 [ 15.667392][ T328] do_setlink.constprop.0+0x79d/0x2300 [ 15.667553][ T328] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 15.667746][ T328] ? lock_acquire.part.0+0xeb/0x330 [ 15.667901][ T328] ? rtnl_newlink+0x653/0xa70 [ 15.668051][ T328] ? rtnl_newlink+0xb9/0xa70 [ 15.668202][ T328] ? rtnetlink_rcv_msg+0x712/0xc10 [ 15.668357][ T328] ? __mutex_trylock_common+0xfa/0x260 [ 15.668510][ T328] ? __pfx___mutex_trylock_common+0x10/0x10 [ 15.668704][ T328] ? lock_acquire+0x32/0xc0 [ 15.668856][ T328] ? trace_contention_end+0xef/0x150 [ 15.669011][ T328] ? __mutex_lock+0x190/0xbc0 [ 15.669163][ T328] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 15.669315][ T328] ? rtnl_newlink+0x653/0xa70 [ 15.669469][ T328] ? __pfx___mutex_lock+0x10/0x10 [ 15.669625][ T328] ? __create_object+0x5e/0xb0 [ 15.669783][ T328] ? __rtnl_newlink+0x3f2/0xa80 [ 15.669936][ T328] rtnl_newlink+0x69c/0xa70 [ 15.670089][ T328] ? __pfx_rtnl_newlink+0x10/0x10 [ 15.670242][ T328] ? find_held_lock+0x2c/0x110 [ 15.670398][ T328] ? __pfx___lock_release+0x10/0x10 [ 15.670551][ T328] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.670706][ T328] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 15.670860][ T328] ? __pfx_rtnl_newlink+0x10/0x10 [ 15.671020][ T328] rtnetlink_rcv_msg+0x712/0xc10 [ 15.671174][ T328] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.671327][ T328] ? hlock_class+0x4e/0x130 [ 15.671481][ T328] ? mark_lock+0x38/0x3e0 [ 15.671598][ T328] ? __lock_acquire+0xb9a/0x1680 [ 15.671753][ T328] netlink_rcv_skb+0x130/0x360 [ 15.671904][ T328] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.672064][ T328] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 15.672223][ T328] ? netlink_deliver_tap+0x13e/0x340 [ 15.672377][ T328] ? netlink_deliver_tap+0xc3/0x340 [ 15.672531][ T328] netlink_unicast+0x44b/0x710 [ 15.672684][ T328] ? __pfx_netlink_unicast+0x10/0x10 [ 15.672837][ T328] ? find_held_lock+0x2c/0x110 [ 15.672990][ T328] netlink_sendmsg+0x723/0xbe0 [ 15.673148][ T328] ? __pfx_netlink_sendmsg+0x10/0x10 [ 15.673303][ T328] ____sys_sendmsg+0x7ac/0xa10 [ 15.673457][ T328] ? __pfx_____sys_sendmsg+0x10/0x10 [ 15.673608][ T328] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 15.673801][ T328] ___sys_sendmsg+0xee/0x170 [ 15.673956][ T328] ? __pfx____sys_sendmsg+0x10/0x10 [ 15.674117][ T328] ? kasan_save_stack+0x34/0x50 [ 15.674274][ T328] ? kasan_save_stack+0x24/0x50 [ 15.674430][ T328] ? __kasan_record_aux_stack+0x8e/0xa0 [ 15.674586][ T328] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 15.674777][ T328] ? __x64_sys_close+0x7c/0xd0 [ 15.674931][ T328] ? do_syscall_64+0xc1/0x1d0 [ 15.675178][ T328] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.675368][ T328] ? __lock_acquire+0xb9a/0x1680 [ 15.675524][ T328] ? find_held_lock+0x2c/0x110 [ 15.675686][ T328] ? __lock_release+0x103/0x460 [ 15.675839][ T328] ? __virt_addr_valid+0x22b/0x430 [ 15.675995][ T328] ? __pfx___lock_release+0x10/0x10 [ 15.676147][ T328] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.676302][ T328] __sys_sendmsg+0x109/0x1a0 [ 15.676466][ T328] ? __pfx___sys_sendmsg+0x10/0x10 [ 15.676621][ T328] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 15.676824][ T328] do_syscall_64+0xc1/0x1d0 [ 15.676979][ T328] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.677173][ T328] RIP: 0033:0x7f02cf3499a7 [ 15.677336][ T328] 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 [ 15.677886][ T328] RSP: 002b:00007ffc4a4d36e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.678119][ T328] RAX: ffffffffffffffda RBX: 00007ffc4a4d3e10 RCX: 00007f02cf3499a7 [ 15.678354][ T328] RDX: 0000000000000000 RSI: 00007ffc4a4d3750 RDI: 0000000000000005 [ 15.678585][ T328] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 15.678823][ T328] R10: 00007f02cf207ef8 R11: 0000000000000246 R12: 0000000000000003 [ 15.679057][ T328] R13: 0000000067792afa R14: 0000000000498600 R15: 0000000000000000 [ 15.679288][ T328] [ 15.685766][ T328] ip (328) used greatest stack depth: 23248 bytes left [ 15.743735][ T329] 8021q: adding VLAN 0 to HW filter on device lag2 [ 16.084859][ T334] gre: GRE over IPv4 demultiplexor driver [ 16.094322][ T334] ip_gre: GRE over IPv4 tunneling driver [ 17.499965][ T361] lag1: Mode changed to "loadbalance" [ 17.628361][ T364] lag1: Port device veth2 added [ 17.875901][ T367] lag1: Port device veth4 added [ 17.993631][ T369] 8021q: adding VLAN 0 to HW filter on device lag1 [ 24.068064][ T395] Mirror/redirect action on [ 24.228006][ T398] GACT probability NOT on [ 24.312240][ T399] lag2: Port device veth5 removed [ 28.276941][ T409] lag2: Port device veth3 removed [ 33.154664][ T439] lag2: Mode changed to "loadbalance" [ 33.289717][ T442] lag2: Port device veth3 added [ 33.505311][ T447] lag2: Port device veth5 added [ 33.628890][ T449] 8021q: adding VLAN 0 to HW filter on device lag2 [ 33.690627][ T450] 8021q: adding VLAN 0 to HW filter on device lag2 [ 39.806862][ T484] lag2: Port device veth3 removed [ 43.744185][ T494] lag2: Port device veth5 removed [ 48.735055][ T524] lag2: Mode changed to "loadbalance" [ 48.871372][ T527] lag2: Port device veth3 added [ 49.096435][ T532] lag2: Port device veth5 added [ 49.223967][ T534] 8021q: adding VLAN 0 to HW filter on device lag2 [ 49.282989][ T535] 8021q: adding VLAN 0 to HW filter on device lag2 [ 55.361198][ T361] lag1: Port device veth4 removed [ 55.367291][ T361] lag1: Port device veth2 removed [ 56.839670][ T524] lag2: Port device veth5 removed [ 56.841801][ T524] lag2: Port device veth3 removed