[ 12.772681][ T305] 8021q: 802.1Q VLAN Support v1.8 [ 15.807921][ T376] GACT probability NOT on [ 17.082142][ T412] br10: port 1(veth1.10) entered blocking state [ 17.082652][ T412] br10: port 1(veth1.10) entered disabled state [ 17.083072][ T412] veth1.10: entered allmulticast mode [ 17.083302][ T412] veth1: entered allmulticast mode [ 17.085342][ T412] veth1.10: entered promiscuous mode [ 17.085604][ T412] veth1: entered promiscuous mode [ 17.565540][ T429] br11: port 1(veth1.11) entered blocking state [ 17.565965][ T429] br11: port 1(veth1.11) entered disabled state [ 17.566415][ T429] veth1.11: entered allmulticast mode [ 17.569691][ T429] veth1.11: entered promiscuous mode [ 18.362854][ T459] br10: port 2(veth2.10) entered blocking state [ 18.363123][ T459] br10: port 2(veth2.10) entered disabled state [ 18.363667][ T459] veth2.10: entered allmulticast mode [ 18.363842][ T459] veth2: entered allmulticast mode [ 18.365739][ T459] veth2.10: entered promiscuous mode [ 18.365960][ T459] veth2: entered promiscuous mode [ 18.801196][ T476] br11: port 2(veth2.11) entered blocking state [ 18.801485][ T476] br11: port 2(veth2.11) entered disabled state [ 18.801989][ T476] veth2.11: entered allmulticast mode [ 18.803940][ T476] veth2.11: entered promiscuous mode [ 19.203211][ T488] br10: port 2(veth2.10) entered blocking state [ 19.203636][ T488] br10: port 2(veth2.10) entered forwarding state [ 19.204446][ T488] br10: port 1(veth1.10) entered blocking state [ 19.204715][ T488] br10: port 1(veth1.10) entered forwarding state [ 19.316938][ T493] br11: port 2(veth2.11) entered blocking state [ 19.317239][ T493] br11: port 2(veth2.11) entered forwarding state [ 19.317701][ T493] br11: port 1(veth1.11) entered blocking state [ 19.317947][ T493] br11: port 1(veth1.11) entered forwarding state [ 99.857328][ T836] br11: port 2(veth2.11) entered disabled state [ 99.858130][ T836] br11: port 1(veth1.11) entered disabled state [ 99.970837][ T838] br10: port 2(veth2.10) entered disabled state [ 99.972283][ T838] br10: port 1(veth1.10) entered disabled state [ 100.152313][ T842] veth2.11: left allmulticast mode [ 100.152562][ T842] veth2.11: left promiscuous mode [ 100.152889][ T842] br11: port 2(veth2.11) entered disabled state [ 100.354030][ T846] veth2: left allmulticast mode [ 100.354306][ T846] veth2: left promiscuous mode [ 100.458084][ T850] veth2.10: left allmulticast mode [ 100.458385][ T850] veth2.10: left promiscuous mode [ 100.458745][ T850] br10: port 2(veth2.10) entered disabled state [ 100.975893][ T861] veth1.11: left allmulticast mode [ 100.976183][ T861] veth1.11: left promiscuous mode [ 100.976614][ T861] br11: port 1(veth1.11) entered disabled state [ 101.191798][ T865] veth1: left allmulticast mode [ 101.192079][ T865] veth1: left promiscuous mode [ 101.272745][ T867] veth1.10: left allmulticast mode [ 101.272963][ T867] veth1.10: left promiscuous mode [ 101.273279][ T867] br10: port 1(veth1.10) entered disabled state [ 102.094605][ T881] [ 102.094746][ T881] ============================================ [ 102.094928][ T881] WARNING: possible recursive locking detected [ 102.095104][ T881] 6.13.0-rc5-virtme #1 Not tainted [ 102.095252][ T881] -------------------------------------------- [ 102.095435][ T881] ip/881 is trying to acquire lock: [ 102.095588][ T881] ffffffffa71d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 102.095917][ T881] [ 102.095917][ T881] but task is already holding lock: [ 102.096151][ T881] ffffffffa71d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 102.096475][ T881] [ 102.096475][ T881] other info that might help us debug this: [ 102.096698][ T881] Possible unsafe locking scenario: [ 102.096698][ T881] [ 102.096908][ T881] CPU0 [ 102.097016][ T881] ---- [ 102.097121][ T881] lock((netdev_chain).rwsem); [ 102.097265][ T881] lock((netdev_chain).rwsem); [ 102.097409][ T881] [ 102.097409][ T881] *** DEADLOCK *** [ 102.097409][ T881] [ 102.097619][ T881] May be due to missing lock nesting notation [ 102.097619][ T881] [ 102.097984][ T881] 2 locks held by ip/881: [ 102.098095][ T881] #0: ffffffffa71e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 102.098362][ T881] #1: ffffffffa71d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 102.098662][ T881] [ 102.098662][ T881] stack backtrace: [ 102.098843][ T881] CPU: 0 UID: 0 PID: 881 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 102.099064][ T881] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 102.099245][ T881] Call Trace: [ 102.099355][ T881] [ 102.099433][ T881] dump_stack_lvl+0x82/0xd0 [ 102.099583][ T881] print_deadlock_bug+0x40a/0x650 [ 102.099731][ T881] validate_chain+0x5bf/0xae0 [ 102.099875][ T881] ? __pfx_validate_chain+0x10/0x10 [ 102.100029][ T881] ? hlock_class+0x4e/0x130 [ 102.100174][ T881] ? mark_lock+0x38/0x3e0 [ 102.100285][ T881] __lock_acquire+0xb9a/0x1680 [ 102.100434][ T881] lock_acquire.part.0+0xeb/0x330 [ 102.100584][ T881] ? blocking_notifier_call_chain+0x50/0x90 [ 102.100765][ T881] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 102.100946][ T881] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 102.101094][ T881] ? trace_lock_acquire+0x14c/0x1f0 [ 102.101240][ T881] ? lock_acquire+0x32/0xc0 [ 102.101386][ T881] ? blocking_notifier_call_chain+0x50/0x90 [ 102.101566][ T881] down_read+0x9f/0x340 [ 102.101678][ T881] ? blocking_notifier_call_chain+0x50/0x90 [ 102.101859][ T881] ? __pfx_down_read+0x10/0x10 [ 102.102004][ T881] ? __lock_release+0x103/0x460 [ 102.102153][ T881] ? netconsole_netdev_event+0x2c1/0x620 [ 102.102298][ T881] ? __pfx___lock_release+0x10/0x10 [ 102.102446][ T881] blocking_notifier_call_chain+0x50/0x90 [ 102.102592][ T881] __netdev_upper_dev_unlink+0xd9/0x220 [ 102.102738][ T881] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 102.102918][ T881] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 102.103065][ T881] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 102.103246][ T881] ? rtnl_is_locked+0x15/0x20 [ 102.103394][ T881] netdev_upper_dev_unlink+0x71/0xa0 [ 102.103547][ T881] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 102.103725][ T881] ? netconsole_netdev_event+0x2c1/0x620 [ 102.103877][ T881] ? mutex_is_locked+0x1c/0x60 [ 102.104024][ T881] ? rtnl_is_locked+0x15/0x20 [ 102.104175][ T881] ? netdev_master_upper_dev_get+0x13/0x120 [ 102.104369][ T881] vrf_device_event+0x78/0xe0 [vrf] [ 102.104521][ T881] notifier_call_chain+0xcd/0x150 [ 102.104667][ T881] blocking_notifier_call_chain+0x66/0x90 [ 102.104824][ T881] unregister_netdevice_many_notify+0xa7b/0x1580 [ 102.105008][ T881] ? hlock_class+0x4e/0x130 [ 102.105157][ T881] ? mark_lock+0x38/0x3e0 [ 102.105272][ T881] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 102.105461][ T881] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 102.105644][ T881] ? kfree+0xf3/0x330 [ 102.105756][ T881] ? vlan_vid_del+0x310/0x5e0 [ 102.105914][ T881] ? vlan_vid_del+0x310/0x5e0 [ 102.106061][ T881] rtnl_dellink+0x348/0xa40 [ 102.106209][ T881] ? __pfx_rtnl_dellink+0x10/0x10 [ 102.106368][ T881] ? find_held_lock+0x2c/0x110 [ 102.106522][ T881] ? __lock_release+0x103/0x460 [ 102.106672][ T881] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 102.106818][ T881] ? __pfx___lock_release+0x10/0x10 [ 102.106963][ T881] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 102.107113][ T881] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 102.107258][ T881] ? __pfx_rtnl_dellink+0x10/0x10 [ 102.107410][ T881] rtnetlink_rcv_msg+0x712/0xc10 [ 102.107558][ T881] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 102.107706][ T881] ? hlock_class+0x4e/0x130 [ 102.107852][ T881] ? mark_lock+0x38/0x3e0 [ 102.107964][ T881] ? __lock_acquire+0xb9a/0x1680 [ 102.108116][ T881] netlink_rcv_skb+0x130/0x360 [ 102.108278][ T881] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 102.108425][ T881] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 102.108586][ T881] ? netlink_deliver_tap+0x13e/0x340 [ 102.108733][ T881] ? netlink_deliver_tap+0xc3/0x340 [ 102.108881][ T881] netlink_unicast+0x44b/0x710 [ 102.109026][ T881] ? __pfx_netlink_unicast+0x10/0x10 [ 102.109170][ T881] ? find_held_lock+0x2c/0x110 [ 102.109317][ T881] netlink_sendmsg+0x723/0xbe0 [ 102.109464][ T881] ? __pfx_netlink_sendmsg+0x10/0x10 [ 102.109614][ T881] ____sys_sendmsg+0x7ac/0xa10 [ 102.109761][ T881] ? __pfx_____sys_sendmsg+0x10/0x10 [ 102.109908][ T881] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 102.110094][ T881] ___sys_sendmsg+0xee/0x170 [ 102.110239][ T881] ? __pfx____sys_sendmsg+0x10/0x10 [ 102.110388][ T881] ? kasan_save_stack+0x34/0x50 [ 102.110535][ T881] ? kasan_save_stack+0x24/0x50 [ 102.110681][ T881] ? __kasan_record_aux_stack+0x8e/0xa0 [ 102.110831][ T881] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 102.111013][ T881] ? __x64_sys_close+0x7c/0xd0 [ 102.111159][ T881] ? do_syscall_64+0xc1/0x1d0 [ 102.111306][ T881] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 102.111487][ T881] ? __lock_acquire+0xb9a/0x1680 [ 102.111634][ T881] ? find_held_lock+0x2c/0x110 [ 102.111784][ T881] ? __lock_release+0x103/0x460 [ 102.111935][ T881] ? __virt_addr_valid+0x22b/0x430 [ 102.112082][ T881] ? __pfx___lock_release+0x10/0x10 [ 102.112228][ T881] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 102.112376][ T881] __sys_sendmsg+0x109/0x1a0 [ 102.112524][ T881] ? __pfx___sys_sendmsg+0x10/0x10 [ 102.112671][ T881] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 102.112858][ T881] do_syscall_64+0xc1/0x1d0 [ 102.113009][ T881] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 102.113190][ T881] RIP: 0033:0x7f63374919a7 [ 102.113345][ T881] 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 [ 102.113855][ T881] RSP: 002b:00007ffc8ac8b148 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 102.114079][ T881] RAX: ffffffffffffffda RBX: 00007ffc8ac8b870 RCX: 00007f63374919a7 [ 102.114297][ T881] RDX: 0000000000000000 RSI: 00007ffc8ac8b1b0 RDI: 0000000000000005 [ 102.114515][ T881] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 102.114730][ T881] R10: 00007f633734fef8 R11: 0000000000000246 R12: 0000000000000002 [ 102.114967][ T881] R13: 0000000067790317 R14: 0000000000498600 R15: 0000000000000000 [ 102.115189][ T881]