[ 126.671472][ T1450] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 126.690163][ T1450] Bridge firewalling registered [ 127.328471][ T1458] 8021q: 802.1Q VLAN Support v1.8 [ 128.197548][ T1466] br0: port 1(vtep-host) entered blocking state [ 128.198065][ T1466] br0: port 1(vtep-host) entered disabled state [ 128.198364][ T1466] vtep-host: entered allmulticast mode [ 128.200710][ T1466] vtep-host: entered promiscuous mode [ 128.945328][ T1473] br0: port 2(vxd) entered blocking state [ 128.945607][ T1473] br0: port 2(vxd) entered disabled state [ 128.945858][ T1473] vxd: entered allmulticast mode [ 128.947856][ T1473] vxd: entered promiscuous mode [ 130.092794][ T1484] br0: port 2(vxd) entered blocking state [ 130.093314][ T1484] br0: port 2(vxd) entered forwarding state [ 130.094332][ T1484] br0: port 1(vtep-host) entered blocking state [ 130.094719][ T1484] br0: port 1(vtep-host) entered forwarding state [ 130.300375][ T1486] [ 130.300513][ T1486] ============================================ [ 130.300826][ T1486] WARNING: possible recursive locking detected [ 130.301119][ T1486] 6.13.0-rc5-virtme #1 Not tainted [ 130.301357][ T1486] -------------------------------------------- [ 130.301649][ T1486] ip/1486 is trying to acquire lock: [ 130.301889][ T1486] ffffffffa37dfc30 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 130.302409][ T1486] [ 130.302409][ T1486] but task is already holding lock: [ 130.302769][ T1486] ffffffffa37dfc30 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 130.303252][ T1486] [ 130.303252][ T1486] other info that might help us debug this: [ 130.303604][ T1486] Possible unsafe locking scenario: [ 130.303604][ T1486] [ 130.303958][ T1486] CPU0 [ 130.304164][ T1486] ---- [ 130.304352][ T1486] lock((netdev_chain).rwsem); [ 130.304591][ T1486] lock((netdev_chain).rwsem); [ 130.304833][ T1486] [ 130.304833][ T1486] *** DEADLOCK *** [ 130.304833][ T1486] [ 130.305180][ T1486] May be due to missing lock nesting notation [ 130.305180][ T1486] [ 130.305525][ T1486] 2 locks held by ip/1486: [ 130.305765][ T1486] #0: ffffffffa37f1088 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x653/0xa70 [ 130.306211][ T1486] #1: ffffffffa37dfc30 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 130.306700][ T1486] [ 130.306700][ T1486] stack backtrace: [ 130.306994][ T1486] CPU: 0 UID: 0 PID: 1486 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 130.307356][ T1486] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 130.307660][ T1486] Call Trace: [ 130.307843][ T1486] [ 130.307969][ T1486] dump_stack_lvl+0x82/0xd0 [ 130.308219][ T1486] print_deadlock_bug+0x40a/0x650 [ 130.308464][ T1486] validate_chain+0x5bf/0xae0 [ 130.308708][ T1486] ? __pfx_validate_chain+0x10/0x10 [ 130.308952][ T1486] ? hlock_class+0x4e/0x130 [ 130.309193][ T1486] ? mark_lock+0x38/0x3e0 [ 130.309379][ T1486] __lock_acquire+0xb9a/0x1680 [ 130.309628][ T1486] ? find_held_lock+0x1/0x110 [ 130.309872][ T1486] ? stack_depot_save_flags+0x27e/0x440 [ 130.310119][ T1486] lock_acquire.part.0+0xeb/0x330 [ 130.310369][ T1486] ? blocking_notifier_call_chain+0x50/0x90 [ 130.310673][ T1486] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 130.310915][ T1486] ? trace_lock_acquire+0x14c/0x1f0 [ 130.311158][ T1486] ? lock_acquire+0x32/0xc0 [ 130.311407][ T1486] ? blocking_notifier_call_chain+0x50/0x90 [ 130.311709][ T1486] down_read+0x9f/0x340 [ 130.311893][ T1486] ? blocking_notifier_call_chain+0x50/0x90 [ 130.312194][ T1486] ? __pfx_down_read+0x10/0x10 [ 130.312438][ T1486] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 130.312739][ T1486] ? addrconf_ifdown.isra.0+0x1212/0x15d0 [ 130.312982][ T1486] ? addrconf_notify+0xd1/0xd50 [ 130.313232][ T1486] ? notifier_call_chain+0xcd/0x150 [ 130.313471][ T1486] ? blocking_notifier_call_chain+0x66/0x90 [ 130.313775][ T1486] ? dev_set_mtu_ext+0x2b6/0x510 [ 130.314021][ T1486] ? rtnl_newlink+0x69c/0xa70 [ 130.314265][ T1486] blocking_notifier_call_chain+0x50/0x90 [ 130.314514][ T1486] dev_set_mtu_ext+0x18c/0x510 [ 130.314762][ T1486] ? __pfx_dev_set_mtu_ext+0x10/0x10 [ 130.315016][ T1486] ? __pfx___lock_release+0x10/0x10 [ 130.315261][ T1486] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 130.315507][ T1486] ? __pfx_validate_chain+0x10/0x10 [ 130.315751][ T1486] dev_set_mtu+0xa1/0x130 [ 130.315934][ T1486] ? __pfx_dev_set_mtu+0x10/0x10 [ 130.316177][ T1486] ? __lock_acquire+0xb9a/0x1680 [ 130.316429][ T1486] ? __lock_release+0x103/0x460 [ 130.316678][ T1486] ? nf_tables_netdev_event+0xa8/0x730 [nf_tables] [ 130.317037][ T1486] br_mtu_auto_adjust+0x189/0x270 [bridge] [ 130.317406][ T1486] br_device_event+0x179/0x800 [bridge] [ 130.317698][ T1486] ? __pfx_br_device_event+0x10/0x10 [bridge] [ 130.318052][ T1486] ? nft_offload_netdev_event+0x3d/0x3b0 [nf_tables] [ 130.318412][ T1486] notifier_call_chain+0xcd/0x150 [ 130.318667][ T1486] blocking_notifier_call_chain+0x66/0x90 [ 130.318909][ T1486] dev_set_mtu_ext+0x2b6/0x510 [ 130.319153][ T1486] ? __pfx_dev_set_mtu_ext+0x10/0x10 [ 130.319395][ T1486] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 130.319697][ T1486] ? __pfx_validate_chain+0x10/0x10 [ 130.319942][ T1486] ? mark_lock+0x38/0x3e0 [ 130.320129][ T1486] do_setlink.constprop.0+0x4b3/0x2300 [ 130.320390][ T1486] ? __pfx_do_setlink.constprop.0+0x10/0x10 [ 130.320692][ T1486] ? lock_acquire.part.0+0xeb/0x330 [ 130.320939][ T1486] ? rtnl_newlink+0x653/0xa70 [ 130.321179][ T1486] ? rtnl_newlink+0xb9/0xa70 [ 130.321419][ T1486] ? rtnetlink_rcv_msg+0x712/0xc10 [ 130.321657][ T1486] ? __mutex_trylock_common+0xfa/0x260 [ 130.321903][ T1486] ? __pfx___mutex_trylock_common+0x10/0x10 [ 130.322213][ T1486] ? lock_acquire+0x32/0xc0 [ 130.322458][ T1486] ? trace_contention_end+0xef/0x150 [ 130.322699][ T1486] ? __mutex_lock+0x190/0xbc0 [ 130.322944][ T1486] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 130.323189][ T1486] ? rtnl_newlink+0x653/0xa70 [ 130.323429][ T1486] ? __pfx___mutex_lock+0x10/0x10 [ 130.323678][ T1486] ? __rtnl_newlink+0x3f2/0xa80 [ 130.323932][ T1486] rtnl_newlink+0x69c/0xa70 [ 130.324336][ T1486] ? __pfx_rtnl_newlink+0x10/0x10 [ 130.324565][ T1486] ? find_held_lock+0x2c/0x110 [ 130.324808][ T1486] ? __pfx___lock_release+0x10/0x10 [ 130.325046][ T1486] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 130.325406][ T1486] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 130.325645][ T1486] ? __pfx_rtnl_newlink+0x10/0x10 [ 130.325893][ T1486] rtnetlink_rcv_msg+0x712/0xc10 [ 130.326135][ T1486] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 130.326530][ T1486] ? hlock_class+0x4e/0x130 [ 130.326772][ T1486] ? mark_lock+0x38/0x3e0 [ 130.326956][ T1486] ? __lock_acquire+0xb9a/0x1680 [ 130.327196][ T1486] netlink_rcv_skb+0x130/0x360 [ 130.327607][ T1486] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 130.327835][ T1486] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 130.328097][ T1486] ? netlink_deliver_tap+0x13e/0x340 [ 130.328340][ T1486] ? netlink_deliver_tap+0xc3/0x340 [ 130.328711][ T1486] netlink_unicast+0x44b/0x710 [ 130.328902][ T1486] ? __pfx_netlink_unicast+0x10/0x10 [ 130.329115][ T1486] ? find_held_lock+0x2c/0x110 [ 130.329357][ T1486] ? __lock_release+0x103/0x460 [ 130.329726][ T1486] netlink_sendmsg+0x723/0xbe0 [ 130.329965][ T1486] ? __pfx_netlink_sendmsg+0x10/0x10 [ 130.330208][ T1486] ? _copy_from_user+0x55/0xa0 [ 130.330469][ T1486] ____sys_sendmsg+0x7ac/0xa10 [ 130.330886][ T1486] ? __pfx_____sys_sendmsg+0x10/0x10 [ 130.331096][ T1486] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 130.331403][ T1486] ___sys_sendmsg+0xee/0x170 [ 130.331649][ T1486] ? __pfx____sys_sendmsg+0x10/0x10 [ 130.332019][ T1486] ? kasan_save_stack+0x34/0x50 [ 130.332262][ T1486] ? kasan_save_stack+0x24/0x50 [ 130.332506][ T1486] ? __kasan_record_aux_stack+0x8e/0xa0 [ 130.332749][ T1486] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 130.333220][ T1486] ? __x64_sys_close+0x7c/0xd0 [ 130.333465][ T1486] ? do_syscall_64+0xc1/0x1d0 [ 130.333711][ T1486] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 130.334020][ T1486] ? __lock_acquire+0xb9a/0x1680 [ 130.334424][ T1486] ? find_held_lock+0x2c/0x110 [ 130.334667][ T1486] ? __lock_release+0x103/0x460 [ 130.334906][ T1486] ? __virt_addr_valid+0x22b/0x430 [ 130.335152][ T1486] ? __pfx___lock_release+0x10/0x10 [ 130.335511][ T1486] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 130.335755][ T1486] __sys_sendmsg+0x109/0x1a0 [ 130.335998][ T1486] ? __pfx___sys_sendmsg+0x10/0x10 [ 130.336247][ T1486] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 130.336713][ T1486] do_syscall_64+0xc1/0x1d0 [ 130.336955][ T1486] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 130.337251][ T1486] RIP: 0033:0x7f9070fd09a7 [ 130.337505][ T1486] 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 [ 130.338361][ T1486] RSP: 002b:00007ffdbe6930c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 130.338890][ T1486] RAX: ffffffffffffffda RBX: 00007ffdbe693800 RCX: 00007f9070fd09a7 [ 130.339250][ T1486] RDX: 0000000000000000 RSI: 00007ffdbe693130 RDI: 0000000000000005 [ 130.339736][ T1486] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 130.340103][ T1486] R10: 00007f9070e8e4a8 R11: 0000000000000246 R12: 0000000000000003 [ 130.340481][ T1486] R13: 0000000067792d88 R14: 0000000000498600 R15: 0000000000000000 [ 130.341010][ T1486] [ 130.349382][ T1486] ip (1486) used greatest stack depth: 23360 bytes left [ 133.054571][ T11] vxd: left allmulticast mode [ 133.054767][ T11] vxd: left promiscuous mode [ 133.055089][ T11] br0: port 2(vxd) entered disabled state [ 133.056251][ T11] vtep-host: left allmulticast mode [ 133.056406][ T11] vtep-host: left promiscuous mode [ 133.056676][ T11] br0: port 1(vtep-host) entered disabled state