[ 61.938552][ T1012] u32 classifier [ 61.938816][ T1012] input device check on [ 61.939012][ T1012] Actions configured [ 63.318293][ T1031] gre: GRE over IPv4 demultiplexor driver [ 63.339389][ T1031] ip_gre: GRE over IPv4 tunneling driver [ 64.757137][ T1061] ip (1061) used greatest stack depth: 23808 bytes left [ 66.679179][ T1093] ip6_gre: GRE over IPv6 tunneling driver [ 66.914520][ T8] ip6_tunnel: ip6gretap00 xmit: Local address not yet configured! [ 69.958487][ T8] ip6_tunnel: ip6erspan00 xmit: Local address not yet configured! [ 70.357400][ T8] ip6_tunnel: ip6erspan00 xmit: Local address not yet configured! [ 70.996163][ T1171] test-br0: port 1(test-dummy0) entered blocking state [ 70.996582][ T1171] test-br0: port 1(test-dummy0) entered disabled state [ 70.997021][ T1171] test-dummy0: entered allmulticast mode [ 70.998315][ T1171] test-dummy0: entered promiscuous mode [ 71.084225][ T1175] test-br0: port 1(test-dummy0) entered blocking state [ 71.084670][ T1175] test-br0: port 1(test-dummy0) entered forwarding state [ 72.729362][ T1213] test-dummy0: left allmulticast mode [ 72.729632][ T1213] test-dummy0: left promiscuous mode [ 72.729959][ T1213] test-br0: port 1(test-dummy0) entered disabled state [ 160.296089][ T3419] [ 160.296260][ T3419] ============================================ [ 160.296452][ T3419] WARNING: possible recursive locking detected [ 160.296638][ T3419] 6.13.0-rc5-virtme #1 Not tainted [ 160.296782][ T3419] -------------------------------------------- [ 160.296961][ T3419] ip/3419 is trying to acquire lock: [ 160.297111][ T3419] ffffffff8a1f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 160.297415][ T3419] [ 160.297415][ T3419] but task is already holding lock: [ 160.297628][ T3419] ffffffff8a1f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 160.297925][ T3419] [ 160.297925][ T3419] other info that might help us debug this: [ 160.298143][ T3419] Possible unsafe locking scenario: [ 160.298143][ T3419] [ 160.298355][ T3419] CPU0 [ 160.298465][ T3419] ---- [ 160.298575][ T3419] lock((netdev_chain).rwsem); [ 160.298723][ T3419] lock((netdev_chain).rwsem); [ 160.298870][ T3419] [ 160.298870][ T3419] *** DEADLOCK *** [ 160.298870][ T3419] [ 160.299085][ T3419] May be due to missing lock nesting notation [ 160.299085][ T3419] [ 160.299299][ T3419] 2 locks held by ip/3419: [ 160.299444][ T3419] #0: ffffffff8a207e88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 160.299706][ T3419] #1: ffffffff8a1f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 160.299996][ T3419] [ 160.299996][ T3419] stack backtrace: [ 160.300185][ T3419] CPU: 3 UID: 0 PID: 3419 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 160.300408][ T3419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 160.300587][ T3419] Call Trace: [ 160.300704][ T3419] [ 160.300780][ T3419] dump_stack_lvl+0x82/0xd0 [ 160.300929][ T3419] print_deadlock_bug+0x40a/0x650 [ 160.301079][ T3419] validate_chain+0x5bf/0xae0 [ 160.301226][ T3419] ? __pfx_validate_chain+0x10/0x10 [ 160.301378][ T3419] ? hlock_class+0x4e/0x130 [ 160.301522][ T3419] ? mark_lock+0x38/0x3e0 [ 160.301633][ T3419] __lock_acquire+0xb9a/0x1680 [ 160.301777][ T3419] ? arch_stack_walk+0x31/0xf0 [ 160.301927][ T3419] lock_acquire.part.0+0xeb/0x330 [ 160.302070][ T3419] ? blocking_notifier_call_chain+0x50/0x90 [ 160.302251][ T3419] ? find_stack+0xbc/0x140 [ 160.302397][ T3419] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 160.302547][ T3419] ? trace_lock_acquire+0x14c/0x1f0 [ 160.302692][ T3419] ? lock_acquire+0x32/0xc0 [ 160.302834][ T3419] ? blocking_notifier_call_chain+0x50/0x90 [ 160.303015][ T3419] down_read+0x9f/0x340 [ 160.303127][ T3419] ? blocking_notifier_call_chain+0x50/0x90 [ 160.303308][ T3419] ? __pfx_down_read+0x10/0x10 [ 160.303452][ T3419] ? netlink_sendmsg+0x723/0xbe0 [ 160.303603][ T3419] ? ____sys_sendmsg+0x7ac/0xa10 [ 160.303748][ T3419] ? ___sys_sendmsg+0xee/0x170 [ 160.303891][ T3419] ? __sys_sendmsg+0x109/0x1a0 [ 160.304035][ T3419] ? do_syscall_64+0xc1/0x1d0 [ 160.304182][ T3419] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 160.304364][ T3419] blocking_notifier_call_chain+0x50/0x90 [ 160.304509][ T3419] __netdev_upper_dev_unlink+0xd9/0x220 [ 160.304656][ T3419] ? __pfx___lock_release+0x10/0x10 [ 160.304801][ T3419] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 160.304981][ T3419] ? hlock_class+0x4e/0x130 [ 160.305123][ T3419] ? mark_lock+0x38/0x3e0 [ 160.305232][ T3419] ? hlock_class+0x4e/0x130 [ 160.305396][ T3419] netdev_upper_dev_unlink+0x71/0xa0 [ 160.305540][ T3419] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 160.305723][ T3419] unregister_vlan_dev+0x1c9/0x3b0 [ 160.305869][ T3419] vlan_device_event+0x1697/0x2130 [ 160.306016][ T3419] ? __pfx_vlan_device_event+0x10/0x10 [ 160.306160][ T3419] ? __pfx_br_device_event+0x10/0x10 [ 160.306307][ T3419] ? packet_notifier+0x3b0/0x810 [ 160.306452][ T3419] notifier_call_chain+0xcd/0x150 [ 160.306597][ T3419] blocking_notifier_call_chain+0x66/0x90 [ 160.306746][ T3419] unregister_netdevice_many_notify+0xa83/0x1580 [ 160.306929][ T3419] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 160.307111][ T3419] ? vxlan_dellink+0x1ef/0x2f0 [vxlan] [ 160.307275][ T3419] ? __nla_validate_parse+0x48/0x3d0 [ 160.307421][ T3419] rtnl_dellink+0x348/0xa40 [ 160.307566][ T3419] ? __pfx_rtnl_dellink+0x10/0x10 [ 160.307729][ T3419] ? find_held_lock+0x2c/0x110 [ 160.307874][ T3419] ? __lock_release+0x103/0x460 [ 160.308021][ T3419] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 160.308167][ T3419] ? __pfx___lock_release+0x10/0x10 [ 160.308311][ T3419] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 160.308459][ T3419] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 160.308602][ T3419] ? __pfx_rtnl_dellink+0x10/0x10 [ 160.308751][ T3419] rtnetlink_rcv_msg+0x712/0xc10 [ 160.308896][ T3419] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 160.309041][ T3419] ? hlock_class+0x4e/0x130 [ 160.309184][ T3419] ? mark_lock+0x38/0x3e0 [ 160.309295][ T3419] ? __lock_acquire+0xb9a/0x1680 [ 160.309439][ T3419] netlink_rcv_skb+0x130/0x360 [ 160.309586][ T3419] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 160.309729][ T3419] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 160.309881][ T3419] ? netlink_deliver_tap+0x13e/0x340 [ 160.310027][ T3419] ? netlink_deliver_tap+0xc3/0x340 [ 160.310173][ T3419] netlink_unicast+0x44b/0x710 [ 160.310317][ T3419] ? __pfx_netlink_unicast+0x10/0x10 [ 160.310461][ T3419] ? find_held_lock+0x2c/0x110 [ 160.310607][ T3419] netlink_sendmsg+0x723/0xbe0 [ 160.310754][ T3419] ? __pfx_netlink_sendmsg+0x10/0x10 [ 160.310906][ T3419] ____sys_sendmsg+0x7ac/0xa10 [ 160.311050][ T3419] ? __pfx_____sys_sendmsg+0x10/0x10 [ 160.311193][ T3419] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 160.311379][ T3419] ___sys_sendmsg+0xee/0x170 [ 160.311524][ T3419] ? __pfx____sys_sendmsg+0x10/0x10 [ 160.311668][ T3419] ? kasan_save_stack+0x34/0x50 [ 160.311815][ T3419] ? kasan_save_stack+0x24/0x50 [ 160.311964][ T3419] ? __kasan_record_aux_stack+0x8e/0xa0 [ 160.312109][ T3419] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 160.312289][ T3419] ? __x64_sys_close+0x7c/0xd0 [ 160.312434][ T3419] ? do_syscall_64+0xc1/0x1d0 [ 160.312577][ T3419] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 160.312757][ T3419] ? __lock_acquire+0xb9a/0x1680 [ 160.312902][ T3419] ? find_held_lock+0x2c/0x110 [ 160.313051][ T3419] ? __lock_release+0x103/0x460 [ 160.313195][ T3419] ? __virt_addr_valid+0x22b/0x430 [ 160.313341][ T3419] ? __pfx___lock_release+0x10/0x10 [ 160.313486][ T3419] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 160.313633][ T3419] __sys_sendmsg+0x109/0x1a0 [ 160.313777][ T3419] ? __pfx___sys_sendmsg+0x10/0x10 [ 160.313921][ T3419] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 160.314109][ T3419] do_syscall_64+0xc1/0x1d0 [ 160.314255][ T3419] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 160.314432][ T3419] RIP: 0033:0x7fe6a4aa89a7 [ 160.314584][ T3419] 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 [ 160.315094][ T3419] RSP: 002b:00007ffc98a6a958 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 160.315324][ T3419] RAX: ffffffffffffffda RBX: 00007ffc98a6b090 RCX: 00007fe6a4aa89a7 [ 160.315543][ T3419] RDX: 0000000000000000 RSI: 00007ffc98a6a9c0 RDI: 0000000000000005 [ 160.315762][ T3419] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 160.315983][ T3419] R10: 00007fe6a49664a8 R11: 0000000000000246 R12: 0000000000000001 [ 160.316203][ T3419] R13: 00000000677932e1 R14: 0000000000498600 R15: 0000000000000000 [ 160.316424][ T3419] [ 160.351019][ T3419] ip (3419) used greatest stack depth: 23512 bytes left [ 161.092766][ T3440] MACsec IEEE 802.1AE [ 161.822060][ T3461] Initializing XFRM netlink socket [ 164.048567][ T3358] netdevsim netdevsim0 eni0np1: renamed from eth0 [ 166.896064][ T3579] test-br0: port 1(vxlan10) entered blocking state [ 166.896280][ T3579] test-br0: port 1(vxlan10) entered disabled state [ 166.896485][ T3579] vxlan10: entered allmulticast mode [ 166.897422][ T3579] vxlan10: entered promiscuous mode [ 167.270549][ T67] vxlan10: left allmulticast mode [ 167.270757][ T67] vxlan10: left promiscuous mode [ 167.271016][ T67] test-br0: port 1(vxlan10) entered disabled state [ 167.891110][ T3609] test-br0: port 1(dummy1) entered blocking state [ 167.891918][ T3609] test-br0: port 1(dummy1) entered disabled state [ 167.892140][ T3609] dummy1: entered allmulticast mode [ 167.893033][ T3609] dummy1: entered promiscuous mode [ 168.261318][ T67] dummy1: left allmulticast mode [ 168.261488][ T67] dummy1: left promiscuous mode [ 168.261766][ T67] test-br0: port 1(dummy1) entered disabled state [ 169.272718][ T3358] netdevsim netdevsim20 eni20np1: renamed from eth1 [ 169.371398][ T3655] netdevsim netdevsim10 eni10np1: renamed from eth0 [ 169.891965][ T3668] test-bond0: (slave eni10np1): Enslaving as a backup interface with an up link [ 169.971498][ T3670] test-bond0: (slave eni20np1): Enslaving as a backup interface with an up link [ 170.142819][ T3683] test-br0: port 1(test-bond0) entered blocking state [ 170.143076][ T3683] test-br0: port 1(test-bond0) entered disabled state [ 170.143307][ T3683] test-bond0: entered allmulticast mode [ 170.143461][ T3683] netdevsim netdevsim10 eni10np1: entered allmulticast mode [ 170.143717][ T3683] netdevsim netdevsim20 eni20np1: entered allmulticast mode [ 170.144993][ T3683] test-bond0: entered promiscuous mode [ 170.145569][ T3683] netdevsim netdevsim10 eni10np1: entered promiscuous mode [ 170.145969][ T3683] netdevsim netdevsim20 eni20np1: entered promiscuous mode [ 170.231770][ T3685] test-bond0: left allmulticast mode [ 170.231997][ T3685] netdevsim netdevsim10 eni10np1: left allmulticast mode [ 170.232385][ T3685] netdevsim netdevsim20 eni20np1: left allmulticast mode [ 170.232586][ T3685] test-bond0: left promiscuous mode [ 170.232745][ T3685] netdevsim netdevsim10 eni10np1: left promiscuous mode [ 170.233068][ T3685] netdevsim netdevsim20 eni20np1: left promiscuous mode [ 170.233528][ T3685] test-br0: port 1(test-bond0) entered disabled state [ 170.327905][ T3686] test-bond0 (unregistering): (slave eni10np1): Releasing backup interface [ 170.353485][ T3686] test-bond0 (unregistering): (slave eni20np1): Releasing backup interface [ 170.374267][ T3686] test-bond0 (unregistering): Released all slaves [ 173.192428][ T3765] bond123: (slave test-dummy0): Enslaving as an active interface with an up link [ 173.266041][ T67] bond123 (unregistering): (slave test-dummy0): Releasing backup interface [ 173.275072][ T67] bond123 (unregistering): Released all slaves