[ 11.470897][ T272] ip (272) used greatest stack depth: 23136 bytes left [ 13.043016][ T294] 8021q: 802.1Q VLAN Support v1.8 [ 14.810104][ T319] lag2: Mode changed to "loadbalance" [ 14.987079][ T322] lag2: Port device veth3 added [ 15.281796][ T326] lag2: Port device veth5 added [ 15.452288][ T328] 8021q: adding VLAN 0 to HW filter on device lag2 [ 15.453078][ T328] [ 15.453194][ T328] ====================================================== [ 15.453401][ T328] WARNING: possible circular locking dependency detected [ 15.453614][ T328] 6.13.0-rc5-virtme #1 Not tainted [ 15.453783][ T328] ------------------------------------------------------ [ 15.453994][ T328] ip/328 is trying to acquire lock: [ 15.454164][ T328] ffff888004c4ad80 (team->team_lock_key){+.+.}-{4:4}, at: team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.454474][ T328] [ 15.454474][ T328] but task is already holding lock: [ 15.454720][ T328] ffffffff9ffd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 15.455061][ T328] [ 15.455061][ T328] which lock already depends on the new lock. [ 15.455061][ T328] [ 15.455382][ T328] [ 15.455382][ T328] the existing dependency chain (in reverse order) is: [ 15.455674][ T328] [ 15.455674][ T328] -> #1 ((netdev_chain).rwsem){++++}-{4:4}: [ 15.455922][ T328] __lock_acquire+0xb9a/0x1680 [ 15.456092][ T328] lock_acquire.part.0+0xeb/0x330 [ 15.456256][ T328] down_read+0x9f/0x340 [ 15.456427][ T328] blocking_notifier_call_chain+0x50/0x90 [ 15.456634][ T328] __dev_open+0x15c/0x430 [ 15.456802][ T328] dev_open+0xc9/0x130 [ 15.456967][ T328] team_port_add+0x90a/0x1ce0 [ 15.457134][ T328] team_add_slave+0x41/0x80 [ 15.457296][ T328] do_setlink.constprop.0+0x80e/0x2300 [ 15.457499][ T328] rtnl_newlink+0x69c/0xa70 [ 15.457662][ T328] rtnetlink_rcv_msg+0x712/0xc10 [ 15.457826][ T328] netlink_rcv_skb+0x130/0x360 [ 15.457991][ T328] netlink_unicast+0x44b/0x710 [ 15.458155][ T328] netlink_sendmsg+0x723/0xbe0 [ 15.458318][ T328] ____sys_sendmsg+0x7ac/0xa10 [ 15.458488][ T328] ___sys_sendmsg+0xee/0x170 [ 15.458654][ T328] __sys_sendmsg+0x109/0x1a0 [ 15.458821][ T328] do_syscall_64+0xc1/0x1d0 [ 15.458987][ T328] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.459191][ T328] [ 15.459191][ T328] -> #0 (team->team_lock_key){+.+.}-{4:4}: [ 15.459437][ T328] check_prev_add+0x182/0xce0 [ 15.459606][ T328] validate_chain+0x7bd/0xae0 [ 15.459774][ T328] __lock_acquire+0xb9a/0x1680 [ 15.459938][ T328] lock_acquire.part.0+0xeb/0x330 [ 15.460105][ T328] __mutex_lock+0x169/0xbc0 [ 15.460270][ T328] team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.460438][ T328] vlan_vid_add+0x2bc/0x860 [ 15.460611][ T328] vlan_device_event+0x2f4/0x2130 [8021q] [ 15.460827][ T328] notifier_call_chain+0xcd/0x150 [ 15.460990][ T328] blocking_notifier_call_chain+0x66/0x90 [ 15.461191][ T328] __dev_notify_flags+0xe6/0x250 [ 15.461356][ T328] dev_change_flags+0xec/0x160 [ 15.461519][ T328] do_setlink.constprop.0+0x79d/0x2300 [ 15.461721][ T328] rtnl_newlink+0x69c/0xa70 [ 15.461883][ T328] rtnetlink_rcv_msg+0x712/0xc10 [ 15.462050][ T328] netlink_rcv_skb+0x130/0x360 [ 15.462210][ T328] netlink_unicast+0x44b/0x710 [ 15.462374][ T328] netlink_sendmsg+0x723/0xbe0 [ 15.462536][ T328] ____sys_sendmsg+0x7ac/0xa10 [ 15.462695][ T328] ___sys_sendmsg+0xee/0x170 [ 15.462859][ T328] __sys_sendmsg+0x109/0x1a0 [ 15.463027][ T328] do_syscall_64+0xc1/0x1d0 [ 15.463190][ T328] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.463395][ T328] [ 15.463395][ T328] other info that might help us debug this: [ 15.463395][ T328] [ 15.463713][ T328] Possible unsafe locking scenario: [ 15.463713][ T328] [ 15.463955][ T328] CPU0 CPU1 [ 15.464120][ T328] ---- ---- [ 15.464283][ T328] rlock((netdev_chain).rwsem); [ 15.464449][ T328] lock(team->team_lock_key); [ 15.464689][ T328] lock((netdev_chain).rwsem); [ 15.464933][ T328] lock(team->team_lock_key); [ 15.465097][ T328] [ 15.465097][ T328] *** DEADLOCK *** [ 15.465097][ T328] [ 15.465341][ T328] 2 locks held by ip/328: [ 15.465468][ T328] #0: ffffffff9ffe7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 15.465783][ T328] #1: ffffffff9ffd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 15.466114][ T328] [ 15.466114][ T328] stack backtrace: [ 15.466320][ T328] CPU: 3 UID: 0 PID: 328 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 15.466572][ T328] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.466777][ T328] Call Trace: [ 15.466906][ T328] [ 15.466985][ T328] dump_stack_lvl+0x82/0xd0 [ 15.467140][ T328] print_circular_bug+0x2e2/0x4b0 [ 15.467298][ T328] check_noncircular+0x2f9/0x3e0 [ 15.467458][ T328] ? __pfx_check_noncircular+0x10/0x10 [ 15.467617][ T328] ? rcu_read_lock_any_held+0x43/0xb0 [ 15.467778][ T328] ? validate_chain+0x1fe/0xae0 [ 15.467930][ T328] ? alloc_chain_hlocks+0x4e0/0x720 [ 15.468083][ T328] check_prev_add+0x182/0xce0 [ 15.468237][ T328] validate_chain+0x7bd/0xae0 [ 15.468402][ T328] ? find_held_lock+0x2c/0x110 [ 15.468568][ T328] ? __pfx_validate_chain+0x10/0x10 [ 15.468735][ T328] ? hlock_class+0x4e/0x130 [ 15.468901][ T328] ? mark_lock+0x38/0x3e0 [ 15.469029][ T328] __lock_acquire+0xb9a/0x1680 [ 15.469190][ T328] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 15.469400][ T328] lock_acquire.part.0+0xeb/0x330 [ 15.469550][ T328] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.469701][ T328] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.469852][ T328] ? trace_lock_acquire+0x14c/0x1f0 [ 15.470007][ T328] ? lock_acquire+0x32/0xc0 [ 15.470157][ T328] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.470309][ T328] __mutex_lock+0x169/0xbc0 [ 15.470459][ T328] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.470611][ T328] ? __create_object+0x5e/0xb0 [ 15.470772][ T328] ? __pfx___lock_release+0x10/0x10 [ 15.470935][ T328] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.471091][ T328] ? __pfx___mutex_lock+0x10/0x10 [ 15.471243][ T328] ? mark_held_locks+0x9e/0xe0 [ 15.471398][ T328] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 15.471586][ T328] ? __create_object+0x5e/0xb0 [ 15.471736][ T328] ? team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.471887][ T328] team_vlan_rx_add_vid+0x3b/0x1b0 [ 15.472039][ T328] vlan_vid_add+0x2bc/0x860 [ 15.472199][ T328] vlan_device_event+0x2f4/0x2130 [8021q] [ 15.472361][ T328] ? __pfx_vlan_device_event+0x10/0x10 [8021q] [ 15.472551][ T328] ? packet_notifier+0x3b0/0x810 [ 15.472701][ T328] notifier_call_chain+0xcd/0x150 [ 15.472852][ T328] blocking_notifier_call_chain+0x66/0x90 [ 15.473003][ T328] __dev_notify_flags+0xe6/0x250 [ 15.473154][ T328] ? __pfx___dev_notify_flags+0x10/0x10 [ 15.473312][ T328] ? __pfx___dev_change_flags+0x10/0x10 [ 15.473462][ T328] ? unwind_get_return_address+0x5e/0xa0 [ 15.473615][ T328] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 15.473802][ T328] ? __pfx_validate_chain+0x10/0x10 [ 15.473952][ T328] dev_change_flags+0xec/0x160 [ 15.474106][ T328] do_setlink.constprop.0+0x79d/0x2300 [ 15.474257][ T328] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 15.474449][ T328] ? lock_acquire.part.0+0xeb/0x330 [ 15.474598][ T328] ? rtnl_newlink+0x653/0xa70 [ 15.474747][ T328] ? rtnl_newlink+0xb9/0xa70 [ 15.474896][ T328] ? rtnetlink_rcv_msg+0x712/0xc10 [ 15.475046][ T328] ? __mutex_trylock_common+0xfa/0x260 [ 15.475197][ T328] ? __pfx___mutex_trylock_common+0x10/0x10 [ 15.475392][ T328] ? lock_acquire+0x32/0xc0 [ 15.475560][ T328] ? trace_contention_end+0xef/0x150 [ 15.475709][ T328] ? __mutex_lock+0x190/0xbc0 [ 15.475859][ T328] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 15.476013][ T328] ? rtnl_newlink+0x653/0xa70 [ 15.476162][ T328] ? __pfx___mutex_lock+0x10/0x10 [ 15.476321][ T328] ? __create_object+0x5e/0xb0 [ 15.476474][ T328] ? __rtnl_newlink+0x3f2/0xa80 [ 15.476634][ T328] rtnl_newlink+0x69c/0xa70 [ 15.476787][ T328] ? __pfx_rtnl_newlink+0x10/0x10 [ 15.476936][ T328] ? find_held_lock+0x2c/0x110 [ 15.477087][ T328] ? __pfx___lock_release+0x10/0x10 [ 15.477254][ T328] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.477412][ T328] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 15.477573][ T328] ? __pfx_rtnl_newlink+0x10/0x10 [ 15.477728][ T328] rtnetlink_rcv_msg+0x712/0xc10 [ 15.477880][ T328] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.478063][ T328] ? hlock_class+0x4e/0x130 [ 15.478216][ T328] ? mark_lock+0x38/0x3e0 [ 15.478332][ T328] ? __lock_acquire+0xb9a/0x1680 [ 15.478483][ T328] netlink_rcv_skb+0x130/0x360 [ 15.478636][ T328] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.478787][ T328] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 15.478970][ T328] ? netlink_deliver_tap+0x13e/0x340 [ 15.479123][ T328] ? netlink_deliver_tap+0xc3/0x340 [ 15.479277][ T328] netlink_unicast+0x44b/0x710 [ 15.479441][ T328] ? __pfx_netlink_unicast+0x10/0x10 [ 15.479591][ T328] ? find_held_lock+0x2c/0x110 [ 15.479742][ T328] netlink_sendmsg+0x723/0xbe0 [ 15.479913][ T328] ? __pfx_netlink_sendmsg+0x10/0x10 [ 15.480070][ T328] ____sys_sendmsg+0x7ac/0xa10 [ 15.480221][ T328] ? __pfx_____sys_sendmsg+0x10/0x10 [ 15.480378][ T328] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 15.480573][ T328] ___sys_sendmsg+0xee/0x170 [ 15.480725][ T328] ? __pfx____sys_sendmsg+0x10/0x10 [ 15.480877][ T328] ? kasan_save_stack+0x34/0x50 [ 15.481031][ T328] ? kasan_save_stack+0x24/0x50 [ 15.481190][ T328] ? __kasan_record_aux_stack+0x8e/0xa0 [ 15.481342][ T328] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 15.481528][ T328] ? __x64_sys_close+0x7c/0xd0 [ 15.481770][ T328] ? do_syscall_64+0xc1/0x1d0 [ 15.481922][ T328] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.482110][ T328] ? __lock_acquire+0xb9a/0x1680 [ 15.482269][ T328] ? find_held_lock+0x2c/0x110 [ 15.482427][ T328] ? __lock_release+0x103/0x460 [ 15.482576][ T328] ? __virt_addr_valid+0x22b/0x430 [ 15.482726][ T328] ? __pfx___lock_release+0x10/0x10 [ 15.482874][ T328] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.483117][ T328] __sys_sendmsg+0x109/0x1a0 [ 15.483268][ T328] ? __pfx___sys_sendmsg+0x10/0x10 [ 15.483418][ T328] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 15.483614][ T328] do_syscall_64+0xc1/0x1d0 [ 15.483855][ T328] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.484040][ T328] RIP: 0033:0x7f2f1707d9a7 [ 15.484201][ 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 [ 15.484737][ T328] RSP: 002b:00007ffdedb65db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.484965][ T328] RAX: ffffffffffffffda RBX: 00007ffdedb664e0 RCX: 00007f2f1707d9a7 [ 15.485288][ T328] RDX: 0000000000000000 RSI: 00007ffdedb65e20 RDI: 0000000000000005 [ 15.485526][ T328] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 15.485873][ T328] R10: 00007f2f16f3bef8 R11: 0000000000000246 R12: 0000000000000003 [ 15.486115][ T328] R13: 0000000067790390 R14: 0000000000498600 R15: 0000000000000000 [ 15.486346][ T328] [ 15.501337][ T328] ip (328) used greatest stack depth: 22648 bytes left [ 15.558469][ T329] 8021q: adding VLAN 0 to HW filter on device lag2 [ 15.852513][ T334] gre: GRE over IPv4 demultiplexor driver [ 15.866238][ T334] ip_gre: GRE over IPv4 tunneling driver [ 17.061354][ T361] lag1: Mode changed to "loadbalance" [ 17.195752][ T364] lag1: Port device veth2 added [ 17.416280][ T367] lag1: Port device veth4 added [ 17.548476][ T369] 8021q: adding VLAN 0 to HW filter on device lag1 [ 23.457823][ T397] Mirror/redirect action on [ 23.589789][ T400] GACT probability NOT on [ 23.652052][ T401] lag2: Port device veth5 removed [ 27.609187][ T411] lag2: Port device veth3 removed [ 32.435076][ T441] lag2: Mode changed to "loadbalance" [ 32.600526][ T444] lag2: Port device veth3 added [ 32.833080][ T449] lag2: Port device veth5 added [ 32.957995][ T451] 8021q: adding VLAN 0 to HW filter on device lag2 [ 33.025842][ T452] 8021q: adding VLAN 0 to HW filter on device lag2 [ 39.064213][ T486] lag2: Port device veth3 removed [ 42.993656][ T496] lag2: Port device veth5 removed [ 47.901343][ T526] lag2: Mode changed to "loadbalance" [ 48.069009][ T529] lag2: Port device veth3 added [ 48.255004][ T534] lag2: Port device veth5 added [ 48.384311][ T536] 8021q: adding VLAN 0 to HW filter on device lag2 [ 48.469647][ T537] 8021q: adding VLAN 0 to HW filter on device lag2 [ 54.523186][ T361] lag1: Port device veth4 removed [ 54.528941][ T361] lag1: Port device veth2 removed [ 56.057890][ T526] lag2: Port device veth5 removed [ 56.060397][ T526] lag2: Port device veth3 removed