[ 86.367247][ T1464] br1: port 1(veth1) entered blocking state [ 86.367536][ T1464] br1: port 1(veth1) entered disabled state [ 86.367803][ T1464] veth1: entered allmulticast mode [ 86.371664][ T1464] veth1: entered promiscuous mode [ 86.447901][ T37] br1: port 1(veth1) entered blocking state [ 86.448266][ T37] br1: port 1(veth1) entered forwarding state [ 86.527722][ T1466] br1: port 2(veth2) entered blocking state [ 86.528037][ T1466] br1: port 2(veth2) entered disabled state [ 86.528336][ T1466] veth2: entered allmulticast mode [ 86.530205][ T1466] veth2: entered promiscuous mode [ 86.625946][ T37] br1: port 2(veth2) entered blocking state [ 86.626293][ T37] br1: port 2(veth2) entered forwarding state [ 86.935221][ T1470] 8021q: 802.1Q VLAN Support v1.8 [ 87.747334][ T1482] GACT probability NOT on [ 94.982811][ T1520] Mirror/redirect action on [ 130.701403][ T1700] [ 130.701554][ T1700] ============================================ [ 130.701762][ T1700] WARNING: possible recursive locking detected [ 130.701994][ T1700] 6.13.0-rc5-virtme #1 Not tainted [ 130.702161][ T1700] -------------------------------------------- [ 130.702361][ T1700] ip/1700 is trying to acquire lock: [ 130.702527][ T1700] ffffffffabfd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 130.702874][ T1700] [ 130.702874][ T1700] but task is already holding lock: [ 130.703149][ T1700] ffffffffabfd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 130.703466][ T1700] [ 130.703466][ T1700] other info that might help us debug this: [ 130.703699][ T1700] Possible unsafe locking scenario: [ 130.703699][ T1700] [ 130.703931][ T1700] CPU0 [ 130.704050][ T1700] ---- [ 130.704166][ T1700] lock((netdev_chain).rwsem); [ 130.704359][ T1700] lock((netdev_chain).rwsem); [ 130.704549][ T1700] [ 130.704549][ T1700] *** DEADLOCK *** [ 130.704549][ T1700] [ 130.704818][ T1700] May be due to missing lock nesting notation [ 130.704818][ T1700] [ 130.705072][ T1700] 2 locks held by ip/1700: [ 130.705233][ T1700] #0: ffffffffabfe7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 130.705524][ T1700] #1: ffffffffabfd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 130.705850][ T1700] [ 130.705850][ T1700] stack backtrace: [ 130.706111][ T1700] CPU: 2 UID: 0 PID: 1700 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 130.706393][ T1700] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 130.706603][ T1700] Call Trace: [ 130.706728][ T1700] [ 130.706831][ T1700] dump_stack_lvl+0x82/0xd0 [ 130.707051][ T1700] print_deadlock_bug+0x40a/0x650 [ 130.707211][ T1700] validate_chain+0x5bf/0xae0 [ 130.707424][ T1700] ? __pfx_validate_chain+0x10/0x10 [ 130.707597][ T1700] ? hlock_class+0x4e/0x130 [ 130.707810][ T1700] ? mark_lock+0x38/0x3e0 [ 130.707952][ T1700] __lock_acquire+0xb9a/0x1680 [ 130.708114][ T1700] lock_acquire.part.0+0xeb/0x330 [ 130.708274][ T1700] ? blocking_notifier_call_chain+0x50/0x90 [ 130.708477][ T1700] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 130.708677][ T1700] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 130.708849][ T1700] ? trace_lock_acquire+0x14c/0x1f0 [ 130.709058][ T1700] ? lock_acquire+0x32/0xc0 [ 130.709220][ T1700] ? blocking_notifier_call_chain+0x50/0x90 [ 130.709417][ T1700] down_read+0x9f/0x340 [ 130.709580][ T1700] ? blocking_notifier_call_chain+0x50/0x90 [ 130.709790][ T1700] ? __pfx_down_read+0x10/0x10 [ 130.709957][ T1700] ? __lock_release+0x103/0x460 [ 130.710122][ T1700] ? netconsole_netdev_event+0x2c1/0x620 [ 130.710281][ T1700] ? __pfx___lock_release+0x10/0x10 [ 130.710441][ T1700] blocking_notifier_call_chain+0x50/0x90 [ 130.710601][ T1700] __netdev_upper_dev_unlink+0xd9/0x220 [ 130.710762][ T1700] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 130.710980][ T1700] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 130.711144][ T1700] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 130.711339][ T1700] ? rtnl_is_locked+0x15/0x20 [ 130.711499][ T1700] netdev_upper_dev_unlink+0x71/0xa0 [ 130.711656][ T1700] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 130.711865][ T1700] ? netconsole_netdev_event+0x2c1/0x620 [ 130.712075][ T1700] ? mutex_is_locked+0x1c/0x60 [ 130.712233][ T1700] ? rtnl_is_locked+0x15/0x20 [ 130.712407][ T1700] ? netdev_master_upper_dev_get+0x13/0x120 [ 130.712616][ T1700] vrf_device_event+0x78/0xe0 [vrf] [ 130.712813][ T1700] notifier_call_chain+0xcd/0x150 [ 130.713034][ T1700] blocking_notifier_call_chain+0x66/0x90 [ 130.713240][ T1700] unregister_netdevice_many_notify+0xa7b/0x1580 [ 130.713488][ T1700] ? __lock_release+0x103/0x460 [ 130.713713][ T1700] ? __pfx___lock_release+0x10/0x10 [ 130.713956][ T1700] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 130.714255][ T1700] ? hlock_class+0x4e/0x130 [ 130.714506][ T1700] ? mark_held_locks+0x9e/0xe0 [ 130.714749][ T1700] ? __pfx_vlan_info_rcu_free+0x10/0x10 [ 130.714991][ T1700] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 130.715240][ T1700] rtnl_dellink+0x348/0xa40 [ 130.715404][ T1700] ? __pfx_rtnl_dellink+0x10/0x10 [ 130.715583][ T1700] ? find_held_lock+0x2c/0x110 [ 130.715743][ T1700] ? __lock_release+0x103/0x460 [ 130.715941][ T1700] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 130.716118][ T1700] ? __pfx___lock_release+0x10/0x10 [ 130.716279][ T1700] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 130.716441][ T1700] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 130.716598][ T1700] ? __pfx_rtnl_dellink+0x10/0x10 [ 130.716764][ T1700] rtnetlink_rcv_msg+0x712/0xc10 [ 130.716932][ T1700] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 130.717091][ T1700] ? hlock_class+0x4e/0x130 [ 130.717247][ T1700] ? mark_lock+0x38/0x3e0 [ 130.717370][ T1700] ? __lock_acquire+0xb9a/0x1680 [ 130.717529][ T1700] netlink_rcv_skb+0x130/0x360 [ 130.717687][ T1700] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 130.717860][ T1700] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 130.718022][ T1700] ? netlink_deliver_tap+0x13e/0x340 [ 130.718182][ T1700] ? netlink_deliver_tap+0xc3/0x340 [ 130.718344][ T1700] netlink_unicast+0x44b/0x710 [ 130.718501][ T1700] ? __pfx_netlink_unicast+0x10/0x10 [ 130.718657][ T1700] ? find_held_lock+0x2c/0x110 [ 130.718816][ T1700] netlink_sendmsg+0x723/0xbe0 [ 130.719004][ T1700] ? __pfx_netlink_sendmsg+0x10/0x10 [ 130.719212][ T1700] ____sys_sendmsg+0x7ac/0xa10 [ 130.719373][ T1700] ? __pfx_____sys_sendmsg+0x10/0x10 [ 130.719531][ T1700] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 130.719771][ T1700] ___sys_sendmsg+0xee/0x170 [ 130.719958][ T1700] ? __pfx____sys_sendmsg+0x10/0x10 [ 130.720120][ T1700] ? kasan_save_stack+0x34/0x50 [ 130.720288][ T1700] ? kasan_save_stack+0x24/0x50 [ 130.720445][ T1700] ? __kasan_record_aux_stack+0x8e/0xa0 [ 130.720604][ T1700] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 130.720802][ T1700] ? __x64_sys_close+0x7c/0xd0 [ 130.721041][ T1700] ? do_syscall_64+0xc1/0x1d0 [ 130.721238][ T1700] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 130.721472][ T1700] ? __lock_acquire+0xb9a/0x1680 [ 130.721680][ T1700] ? find_held_lock+0x2c/0x110 [ 130.721864][ T1700] ? __lock_release+0x103/0x460 [ 130.722096][ T1700] ? __virt_addr_valid+0x22b/0x430 [ 130.722258][ T1700] ? __pfx___lock_release+0x10/0x10 [ 130.722418][ T1700] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 130.722577][ T1700] __sys_sendmsg+0x109/0x1a0 [ 130.722738][ T1700] ? __pfx___sys_sendmsg+0x10/0x10 [ 130.722948][ T1700] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 130.723216][ T1700] do_syscall_64+0xc1/0x1d0 [ 130.723498][ T1700] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 130.723687][ T1700] RIP: 0033:0x7fa63b3069a7 [ 130.723856][ T1700] 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 [ 130.724390][ T1700] RSP: 002b:00007ffdee5d8148 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 130.724614][ T1700] RAX: ffffffffffffffda RBX: 00007ffdee5d8870 RCX: 00007fa63b3069a7 [ 130.724839][ T1700] RDX: 0000000000000000 RSI: 00007ffdee5d81b0 RDI: 0000000000000005 [ 130.725074][ T1700] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 130.725298][ T1700] R10: 00007fa63b1c4ef8 R11: 0000000000000246 R12: 0000000000000002 [ 130.725517][ T1700] R13: 0000000067792af9 R14: 0000000000498600 R15: 0000000000000000 [ 130.725739][ T1700] [ 131.223758][ T1707] br1: port 1(veth1) entered disabled state [ 131.301315][ T1708] br1: port 2(veth2) entered disabled state [ 131.361661][ T1709] veth2: left allmulticast mode [ 131.361884][ T1709] veth2: left promiscuous mode [ 131.362167][ T1709] br1: port 2(veth2) entered disabled state [ 131.363805][ T1709] veth1: left allmulticast mode [ 131.363977][ T1709] veth1: left promiscuous mode [ 131.364251][ T1709] br1: port 1(veth1) entered disabled state