[ 10.663327][ T250] ip (250) used greatest stack depth: 23424 bytes left [ 13.015241][ T308] 8021q: 802.1Q VLAN Support v1.8 [ 16.232041][ T378] GACT probability NOT on [ 17.554795][ T414] br10: port 1(veth1.10) entered blocking state [ 17.555296][ T414] br10: port 1(veth1.10) entered disabled state [ 17.555704][ T414] veth1.10: entered allmulticast mode [ 17.555904][ T414] veth1: entered allmulticast mode [ 17.558353][ T414] veth1.10: entered promiscuous mode [ 17.558586][ T414] veth1: entered promiscuous mode [ 18.019950][ T431] br11: port 1(veth1.11) entered blocking state [ 18.020434][ T431] br11: port 1(veth1.11) entered disabled state [ 18.020951][ T431] veth1.11: entered allmulticast mode [ 18.024790][ T431] veth1.11: entered promiscuous mode [ 18.855447][ T461] br10: port 2(veth2.10) entered blocking state [ 18.855804][ T461] br10: port 2(veth2.10) entered disabled state [ 18.856111][ T461] veth2.10: entered allmulticast mode [ 18.856635][ T461] veth2: entered allmulticast mode [ 18.858579][ T461] veth2.10: entered promiscuous mode [ 18.858778][ T461] veth2: entered promiscuous mode [ 19.332360][ T478] br11: port 2(veth2.11) entered blocking state [ 19.332664][ T478] br11: port 2(veth2.11) entered disabled state [ 19.332960][ T478] veth2.11: entered allmulticast mode [ 19.336430][ T478] veth2.11: entered promiscuous mode [ 19.771443][ T490] br10: port 2(veth2.10) entered blocking state [ 19.771883][ T490] br10: port 2(veth2.10) entered forwarding state [ 19.772621][ T490] br10: port 1(veth1.10) entered blocking state [ 19.772888][ T490] br10: port 1(veth1.10) entered forwarding state [ 19.894994][ T495] br11: port 2(veth2.11) entered blocking state [ 19.895337][ T495] br11: port 2(veth2.11) entered forwarding state [ 19.895799][ T495] br11: port 1(veth1.11) entered blocking state [ 19.896050][ T495] br11: port 1(veth1.11) entered forwarding state [ 100.581683][ T840] br11: port 2(veth2.11) entered disabled state [ 100.582660][ T840] br11: port 1(veth1.11) entered disabled state [ 100.686385][ T842] br10: port 2(veth2.10) entered disabled state [ 100.687645][ T842] br10: port 1(veth1.10) entered disabled state [ 100.862836][ T846] veth2.11: left allmulticast mode [ 100.863079][ T846] veth2.11: left promiscuous mode [ 100.863426][ T846] br11: port 2(veth2.11) entered disabled state [ 101.113630][ T850] veth2: left allmulticast mode [ 101.113966][ T850] veth2: left promiscuous mode [ 101.199735][ T854] veth2.10: left allmulticast mode [ 101.200013][ T854] veth2.10: left promiscuous mode [ 101.200378][ T854] br10: port 2(veth2.10) entered disabled state [ 101.757063][ T864] veth1.11: left allmulticast mode [ 101.757351][ T864] veth1.11: left promiscuous mode [ 101.757684][ T864] br11: port 1(veth1.11) entered disabled state [ 102.008152][ T868] veth1: left allmulticast mode [ 102.008749][ T868] veth1: left promiscuous mode [ 102.090045][ T870] veth1.10: left allmulticast mode [ 102.090368][ T870] veth1.10: left promiscuous mode [ 102.090708][ T870] br10: port 1(veth1.10) entered disabled state [ 102.988226][ T884] [ 102.988370][ T884] ============================================ [ 102.988556][ T884] WARNING: possible recursive locking detected [ 102.988741][ T884] 6.13.0-rc5-virtme #1 Not tainted [ 102.988886][ T884] -------------------------------------------- [ 102.989077][ T884] ip/884 is trying to acquire lock: [ 102.989221][ T884] ffffffff8f9d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 102.989525][ T884] [ 102.989525][ T884] but task is already holding lock: [ 102.989733][ T884] ffffffff8f9d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 102.990035][ T884] [ 102.990035][ T884] other info that might help us debug this: [ 102.990266][ T884] Possible unsafe locking scenario: [ 102.990266][ T884] [ 102.990498][ T884] CPU0 [ 102.990616][ T884] ---- [ 102.990737][ T884] lock((netdev_chain).rwsem); [ 102.990901][ T884] lock((netdev_chain).rwsem); [ 102.991062][ T884] [ 102.991062][ T884] *** DEADLOCK *** [ 102.991062][ T884] [ 102.991297][ T884] May be due to missing lock nesting notation [ 102.991297][ T884] [ 102.991530][ T884] 2 locks held by ip/884: [ 102.991654][ T884] #0: ffffffff8f9e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 102.991946][ T884] #1: ffffffff8f9d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 102.992265][ T884] [ 102.992265][ T884] stack backtrace: [ 102.992462][ T884] CPU: 2 UID: 0 PID: 884 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 102.992707][ T884] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 102.992906][ T884] Call Trace: [ 102.993029][ T884] [ 102.993112][ T884] dump_stack_lvl+0x82/0xd0 [ 102.993277][ T884] print_deadlock_bug+0x40a/0x650 [ 102.993436][ T884] validate_chain+0x5bf/0xae0 [ 102.993595][ T884] ? __pfx_validate_chain+0x10/0x10 [ 102.993761][ T884] ? hlock_class+0x4e/0x130 [ 102.993923][ T884] ? mark_lock+0x38/0x3e0 [ 102.994044][ T884] __lock_acquire+0xb9a/0x1680 [ 102.994203][ T884] lock_acquire.part.0+0xeb/0x330 [ 102.994363][ T884] ? blocking_notifier_call_chain+0x50/0x90 [ 102.994562][ T884] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 102.994765][ T884] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 102.994923][ T884] ? trace_lock_acquire+0x14c/0x1f0 [ 102.995088][ T884] ? lock_acquire+0x32/0xc0 [ 102.995245][ T884] ? blocking_notifier_call_chain+0x50/0x90 [ 102.995442][ T884] down_read+0x9f/0x340 [ 102.995567][ T884] ? blocking_notifier_call_chain+0x50/0x90 [ 102.995752][ T884] ? __pfx_down_read+0x10/0x10 [ 102.995901][ T884] ? __lock_release+0x103/0x460 [ 102.996045][ T884] ? netconsole_netdev_event+0x2c1/0x620 [ 102.996194][ T884] ? __pfx___lock_release+0x10/0x10 [ 102.996342][ T884] blocking_notifier_call_chain+0x50/0x90 [ 102.996487][ T884] __netdev_upper_dev_unlink+0xd9/0x220 [ 102.996637][ T884] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 102.996817][ T884] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 102.996962][ T884] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 102.997147][ T884] ? rtnl_is_locked+0x15/0x20 [ 102.997292][ T884] netdev_upper_dev_unlink+0x71/0xa0 [ 102.997439][ T884] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 102.997619][ T884] ? netconsole_netdev_event+0x2c1/0x620 [ 102.997765][ T884] ? mutex_is_locked+0x1c/0x60 [ 102.997912][ T884] ? rtnl_is_locked+0x15/0x20 [ 102.998057][ T884] ? netdev_master_upper_dev_get+0x13/0x120 [ 102.998240][ T884] vrf_device_event+0x78/0xe0 [vrf] [ 102.998388][ T884] notifier_call_chain+0xcd/0x150 [ 102.998537][ T884] blocking_notifier_call_chain+0x66/0x90 [ 102.998690][ T884] unregister_netdevice_many_notify+0xa7b/0x1580 [ 102.998876][ T884] ? hlock_class+0x4e/0x130 [ 102.999019][ T884] ? mark_lock+0x38/0x3e0 [ 102.999130][ T884] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 102.999314][ T884] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 102.999496][ T884] ? kfree+0xf3/0x330 [ 102.999607][ T884] ? vlan_vid_del+0x310/0x5e0 [ 102.999759][ T884] ? vlan_vid_del+0x310/0x5e0 [ 102.999906][ T884] rtnl_dellink+0x348/0xa40 [ 103.000051][ T884] ? __pfx_rtnl_dellink+0x10/0x10 [ 103.000216][ T884] ? find_held_lock+0x2c/0x110 [ 103.000365][ T884] ? __lock_release+0x103/0x460 [ 103.000512][ T884] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 103.000659][ T884] ? __pfx___lock_release+0x10/0x10 [ 103.000803][ T884] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 103.000951][ T884] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 103.001094][ T884] ? __pfx_rtnl_dellink+0x10/0x10 [ 103.001238][ T884] rtnetlink_rcv_msg+0x712/0xc10 [ 103.001382][ T884] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 103.001536][ T884] ? hlock_class+0x4e/0x130 [ 103.001681][ T884] ? mark_lock+0x38/0x3e0 [ 103.001791][ T884] ? __lock_acquire+0xb9a/0x1680 [ 103.001937][ T884] netlink_rcv_skb+0x130/0x360 [ 103.002081][ T884] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 103.002227][ T884] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 103.002377][ T884] ? netlink_deliver_tap+0x13e/0x340 [ 103.002528][ T884] ? netlink_deliver_tap+0xc3/0x340 [ 103.002678][ T884] netlink_unicast+0x44b/0x710 [ 103.002825][ T884] ? __pfx_netlink_unicast+0x10/0x10 [ 103.002968][ T884] ? find_held_lock+0x2c/0x110 [ 103.003114][ T884] netlink_sendmsg+0x723/0xbe0 [ 103.003261][ T884] ? __pfx_netlink_sendmsg+0x10/0x10 [ 103.003409][ T884] ____sys_sendmsg+0x7ac/0xa10 [ 103.003559][ T884] ? __pfx_____sys_sendmsg+0x10/0x10 [ 103.003707][ T884] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 103.003891][ T884] ___sys_sendmsg+0xee/0x170 [ 103.004035][ T884] ? __pfx____sys_sendmsg+0x10/0x10 [ 103.004180][ T884] ? kasan_save_stack+0x34/0x50 [ 103.004324][ T884] ? kasan_save_stack+0x24/0x50 [ 103.004472][ T884] ? __kasan_record_aux_stack+0x8e/0xa0 [ 103.004624][ T884] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 103.004807][ T884] ? __x64_sys_close+0x7c/0xd0 [ 103.004954][ T884] ? do_syscall_64+0xc1/0x1d0 [ 103.005102][ T884] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 103.005284][ T884] ? __lock_acquire+0xb9a/0x1680 [ 103.005432][ T884] ? find_held_lock+0x2c/0x110 [ 103.005579][ T884] ? __lock_release+0x103/0x460 [ 103.005724][ T884] ? __virt_addr_valid+0x22b/0x430 [ 103.005876][ T884] ? __pfx___lock_release+0x10/0x10 [ 103.006021][ T884] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 103.006168][ T884] __sys_sendmsg+0x109/0x1a0 [ 103.006313][ T884] ? __pfx___sys_sendmsg+0x10/0x10 [ 103.006458][ T884] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 103.006647][ T884] do_syscall_64+0xc1/0x1d0 [ 103.006793][ T884] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 103.006976][ T884] RIP: 0033:0x7fedaae279a7 [ 103.007129][ T884] 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 [ 103.007641][ T884] RSP: 002b:00007ffedeb24698 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 103.007990][ T884] RAX: ffffffffffffffda RBX: 00007ffedeb24dc0 RCX: 00007fedaae279a7 [ 103.008268][ T884] RDX: 0000000000000000 RSI: 00007ffedeb24700 RDI: 0000000000000005 [ 103.008486][ T884] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 103.008710][ T884] R10: 00007fedaace5ef8 R11: 0000000000000246 R12: 0000000000000002 [ 103.008935][ T884] R13: 0000000067792db2 R14: 0000000000498600 R15: 0000000000000000 [ 103.009156][ T884]