[ 12.449609][ T257] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 12.464423][ T257] Bridge firewalling registered [ 13.091972][ T266] 8021q: 802.1Q VLAN Support v1.8 [ 13.820520][ T274] br0: port 1(vtep-host) entered blocking state [ 13.820908][ T274] br0: port 1(vtep-host) entered disabled state [ 13.821258][ T274] vtep-host: entered allmulticast mode [ 13.823351][ T274] vtep-host: entered promiscuous mode [ 14.479075][ T281] br0: port 2(vxd) entered blocking state [ 14.479348][ T281] br0: port 2(vxd) entered disabled state [ 14.479784][ T281] vxd: entered allmulticast mode [ 14.482241][ T281] vxd: entered promiscuous mode [ 15.434910][ T292] br0: port 2(vxd) entered blocking state [ 15.435586][ T292] br0: port 2(vxd) entered forwarding state [ 15.444571][ T292] ip (292) used greatest stack depth: 23936 bytes left [ 15.619158][ T294] [ 15.619286][ T294] ============================================ [ 15.619493][ T294] WARNING: possible recursive locking detected [ 15.619704][ T294] 6.13.0-rc5-virtme #1 Not tainted [ 15.619872][ T294] -------------------------------------------- [ 15.620077][ T294] ip/294 is trying to acquire lock: [ 15.620245][ T294] ffffffffa03dfc30 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 15.620591][ T294] [ 15.620591][ T294] but task is already holding lock: [ 15.620837][ T294] ffffffffa03dfc30 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 15.621177][ T294] [ 15.621177][ T294] other info that might help us debug this: [ 15.621424][ T294] Possible unsafe locking scenario: [ 15.621424][ T294] [ 15.621670][ T294] CPU0 [ 15.621797][ T294] ---- [ 15.621922][ T294] lock((netdev_chain).rwsem); [ 15.622094][ T294] lock((netdev_chain).rwsem); [ 15.622268][ T294] [ 15.622268][ T294] *** DEADLOCK *** [ 15.622268][ T294] [ 15.622517][ T294] May be due to missing lock nesting notation [ 15.622517][ T294] [ 15.622768][ T294] 2 locks held by ip/294: [ 15.622896][ T294] #0: ffffffffa03f1088 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 15.623197][ T294] #1: ffffffffa03dfc30 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 15.623533][ T294] [ 15.623533][ T294] stack backtrace: [ 15.623739][ T294] CPU: 0 UID: 0 PID: 294 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 15.624007][ T294] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.624217][ T294] Call Trace: [ 15.624345][ T294] [ 15.624431][ T294] dump_stack_lvl+0x82/0xd0 [ 15.624604][ T294] print_deadlock_bug+0x40a/0x650 [ 15.624776][ T294] validate_chain+0x5bf/0xae0 [ 15.624949][ T294] ? __pfx_validate_chain+0x10/0x10 [ 15.625124][ T294] ? hlock_class+0x4e/0x130 [ 15.625294][ T294] ? mark_lock+0x38/0x3e0 [ 15.625424][ T294] __lock_acquire+0xb9a/0x1680 [ 15.625595][ T294] ? find_held_lock+0x1/0x110 [ 15.625766][ T294] ? stack_depot_save_flags+0x27e/0x440 [ 15.625939][ T294] lock_acquire.part.0+0xeb/0x330 [ 15.626107][ T294] ? blocking_notifier_call_chain+0x50/0x90 [ 15.626319][ T294] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.626493][ T294] ? trace_lock_acquire+0x14c/0x1f0 [ 15.626662][ T294] ? lock_acquire+0x32/0xc0 [ 15.626831][ T294] ? blocking_notifier_call_chain+0x50/0x90 [ 15.627042][ T294] down_read+0x9f/0x340 [ 15.627172][ T294] ? blocking_notifier_call_chain+0x50/0x90 [ 15.627382][ T294] ? __pfx_down_read+0x10/0x10 [ 15.627549][ T294] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 15.627764][ T294] ? addrconf_ifdown.isra.0+0x1212/0x15d0 [ 15.627932][ T294] ? addrconf_notify+0xd1/0xd50 [ 15.628100][ T294] ? notifier_call_chain+0xcd/0x150 [ 15.628268][ T294] ? blocking_notifier_call_chain+0x66/0x90 [ 15.628479][ T294] ? dev_set_mtu_ext+0x2b6/0x510 [ 15.628650][ T294] ? rtnl_newlink+0x69c/0xa70 [ 15.628820][ T294] blocking_notifier_call_chain+0x50/0x90 [ 15.628993][ T294] dev_set_mtu_ext+0x18c/0x510 [ 15.629166][ T294] ? __pfx_dev_set_mtu_ext+0x10/0x10 [ 15.629334][ T294] ? __pfx___lock_release+0x10/0x10 [ 15.629502][ T294] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.629673][ T294] ? __pfx_validate_chain+0x10/0x10 [ 15.629843][ T294] dev_set_mtu+0xa1/0x130 [ 15.629976][ T294] ? __pfx_dev_set_mtu+0x10/0x10 [ 15.630146][ T294] ? __lock_acquire+0xb9a/0x1680 [ 15.630316][ T294] ? __lock_release+0x103/0x460 [ 15.630484][ T294] ? packet_notifier+0x3a6/0x810 [ 15.630652][ T294] br_mtu_auto_adjust+0x189/0x270 [bridge] [ 15.630905][ T294] br_device_event+0x179/0x800 [bridge] [ 15.631109][ T294] ? __pfx_br_device_event+0x10/0x10 [bridge] [ 15.631354][ T294] ? packet_notifier+0x3b0/0x810 [ 15.631525][ T294] notifier_call_chain+0xcd/0x150 [ 15.631697][ T294] blocking_notifier_call_chain+0x66/0x90 [ 15.631867][ T294] dev_set_mtu_ext+0x2b6/0x510 [ 15.632037][ T294] ? __pfx_dev_set_mtu_ext+0x10/0x10 [ 15.632204][ T294] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 15.632414][ T294] ? __pfx_validate_chain+0x10/0x10 [ 15.632585][ T294] ? mark_lock+0x38/0x3e0 [ 15.632719][ T294] do_setlink.constprop.0+0x4b3/0x2300 [ 15.632889][ T294] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 15.633098][ T294] ? lock_acquire.part.0+0xeb/0x330 [ 15.633267][ T294] ? rtnl_newlink+0x653/0xa70 [ 15.633437][ T294] ? rtnl_newlink+0xb9/0xa70 [ 15.633603][ T294] ? rtnetlink_rcv_msg+0x712/0xc10 [ 15.633772][ T294] ? __mutex_trylock_common+0xfa/0x260 [ 15.633954][ T294] ? __pfx___mutex_trylock_common+0x10/0x10 [ 15.634173][ T294] ? lock_acquire+0x32/0xc0 [ 15.634343][ T294] ? trace_contention_end+0xef/0x150 [ 15.634515][ T294] ? __mutex_lock+0x190/0xbc0 [ 15.634685][ T294] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 15.634854][ T294] ? rtnl_newlink+0x653/0xa70 [ 15.635022][ T294] ? __pfx___mutex_lock+0x10/0x10 [ 15.635197][ T294] ? __rtnl_newlink+0x3f2/0xa80 [ 15.635367][ T294] rtnl_newlink+0x69c/0xa70 [ 15.635537][ T294] ? __pfx_rtnl_newlink+0x10/0x10 [ 15.635707][ T294] ? find_held_lock+0x2c/0x110 [ 15.635879][ T294] ? __pfx___lock_release+0x10/0x10 [ 15.636049][ T294] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.636220][ T294] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 15.636393][ T294] ? __pfx_rtnl_newlink+0x10/0x10 [ 15.636564][ T294] rtnetlink_rcv_msg+0x712/0xc10 [ 15.636733][ T294] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.636901][ T294] ? hlock_class+0x4e/0x130 [ 15.637070][ T294] ? mark_lock+0x38/0x3e0 [ 15.637199][ T294] ? __lock_acquire+0xb9a/0x1680 [ 15.637372][ T294] netlink_rcv_skb+0x130/0x360 [ 15.637542][ T294] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 15.637716][ T294] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 15.637889][ T294] ? netlink_deliver_tap+0x13e/0x340 [ 15.638061][ T294] ? netlink_deliver_tap+0xc3/0x340 [ 15.638235][ T294] netlink_unicast+0x44b/0x710 [ 15.638406][ T294] ? __pfx_netlink_unicast+0x10/0x10 [ 15.638575][ T294] ? find_held_lock+0x2c/0x110 [ 15.638746][ T294] ? __lock_release+0x103/0x460 [ 15.638919][ T294] netlink_sendmsg+0x723/0xbe0 [ 15.639087][ T294] ? __pfx_netlink_sendmsg+0x10/0x10 [ 15.639255][ T294] ? _copy_from_user+0x55/0xa0 [ 15.639428][ T294] ____sys_sendmsg+0x7ac/0xa10 [ 15.639597][ T294] ? __pfx_____sys_sendmsg+0x10/0x10 [ 15.639765][ T294] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 15.639978][ T294] ___sys_sendmsg+0xee/0x170 [ 15.640152][ T294] ? __pfx____sys_sendmsg+0x10/0x10 [ 15.640322][ T294] ? kasan_save_stack+0x34/0x50 [ 15.640493][ T294] ? kasan_save_stack+0x24/0x50 [ 15.640664][ T294] ? __kasan_record_aux_stack+0x8e/0xa0 [ 15.640833][ T294] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 15.641045][ T294] ? __x64_sys_close+0x7c/0xd0 [ 15.641310][ T294] ? do_syscall_64+0xc1/0x1d0 [ 15.641483][ T294] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.641693][ T294] ? __lock_acquire+0xb9a/0x1680 [ 15.641864][ T294] ? find_held_lock+0x2c/0x110 [ 15.642125][ T294] ? __lock_release+0x103/0x460 [ 15.642293][ T294] ? __virt_addr_valid+0x22b/0x430 [ 15.642464][ T294] ? __pfx___lock_release+0x10/0x10 [ 15.642632][ T294] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 15.642895][ T294] __sys_sendmsg+0x109/0x1a0 [ 15.643066][ T294] ? __pfx___sys_sendmsg+0x10/0x10 [ 15.643235][ T294] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 15.643450][ T294] do_syscall_64+0xc1/0x1d0 [ 15.643710][ T294] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 15.643920][ T294] RIP: 0033:0x7f9ab65919a7 [ 15.644100][ T294] 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 [ 15.644798][ T294] RSP: 002b:00007ffe965c3268 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.645055][ T294] RAX: ffffffffffffffda RBX: 00007ffe965c39a0 RCX: 00007f9ab65919a7 [ 15.645403][ T294] RDX: 0000000000000000 RSI: 00007ffe965c32d0 RDI: 0000000000000005 [ 15.645661][ T294] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 15.646010][ T294] R10: 00007f9ab644f4a8 R11: 0000000000000246 R12: 0000000000000003 [ 15.646265][ T294] R13: 0000000067792fdb R14: 0000000000498600 R15: 0000000000000000 [ 15.646523][ T294] [ 15.652882][ T294] ip (294) used greatest stack depth: 22912 bytes left [ 15.727645][ T39] br0: port 1(vtep-host) entered blocking state [ 15.727963][ T39] br0: port 1(vtep-host) entered forwarding state [ 18.198212][ T68] vxd: left allmulticast mode [ 18.198411][ T68] vxd: left promiscuous mode [ 18.198725][ T68] br0: port 2(vxd) entered disabled state [ 18.199788][ T68] vtep-host: left allmulticast mode [ 18.199940][ T68] vtep-host: left promiscuous mode [ 18.200182][ T68] br0: port 1(vtep-host) entered disabled state