[ 13.687504][ T308] 8021q: 802.1Q VLAN Support v1.8 [ 16.910670][ T378] GACT probability NOT on [ 18.211862][ T414] br10: port 1(veth1.10) entered blocking state [ 18.212455][ T414] br10: port 1(veth1.10) entered disabled state [ 18.212877][ T414] veth1.10: entered allmulticast mode [ 18.213102][ T414] veth1: entered allmulticast mode [ 18.215084][ T414] veth1.10: entered promiscuous mode [ 18.215546][ T414] veth1: entered promiscuous mode [ 18.674947][ T431] br11: port 1(veth1.11) entered blocking state [ 18.675328][ T431] br11: port 1(veth1.11) entered disabled state [ 18.675628][ T431] veth1.11: entered allmulticast mode [ 18.677734][ T431] veth1.11: entered promiscuous mode [ 19.538799][ T461] br10: port 2(veth2.10) entered blocking state [ 19.539118][ T461] br10: port 2(veth2.10) entered disabled state [ 19.540240][ T461] veth2.10: entered allmulticast mode [ 19.540459][ T461] veth2: entered allmulticast mode [ 19.543439][ T461] veth2.10: entered promiscuous mode [ 19.543668][ T461] veth2: entered promiscuous mode [ 20.060543][ T478] br11: port 2(veth2.11) entered blocking state [ 20.060895][ T478] br11: port 2(veth2.11) entered disabled state [ 20.061185][ T478] veth2.11: entered allmulticast mode [ 20.063232][ T478] veth2.11: entered promiscuous mode [ 20.467566][ T490] br10: port 2(veth2.10) entered blocking state [ 20.468009][ T490] br10: port 2(veth2.10) entered forwarding state [ 20.468728][ T490] br10: port 1(veth1.10) entered blocking state [ 20.469021][ T490] br10: port 1(veth1.10) entered forwarding state [ 20.593210][ T495] br11: port 2(veth2.11) entered blocking state [ 20.593581][ T495] br11: port 2(veth2.11) entered forwarding state [ 20.594185][ T495] br11: port 1(veth1.11) entered blocking state [ 20.594833][ T495] br11: port 1(veth1.11) entered forwarding state [ 101.480449][ T838] br11: port 2(veth2.11) entered disabled state [ 101.481616][ T838] br11: port 1(veth1.11) entered disabled state [ 101.491392][ T838] ip (838) used greatest stack depth: 23632 bytes left [ 101.566930][ T840] br10: port 2(veth2.10) entered disabled state [ 101.567566][ T840] br10: port 1(veth1.10) entered disabled state [ 101.778059][ T844] veth2.11: left allmulticast mode [ 101.778382][ T844] veth2.11: left promiscuous mode [ 101.778744][ T844] br11: port 2(veth2.11) entered disabled state [ 102.015597][ T848] veth2: left allmulticast mode [ 102.015863][ T848] veth2: left promiscuous mode [ 102.119826][ T852] veth2.10: left allmulticast mode [ 102.120125][ T852] veth2.10: left promiscuous mode [ 102.120513][ T852] br10: port 2(veth2.10) entered disabled state [ 102.741850][ T862] veth1.11: left allmulticast mode [ 102.742112][ T862] veth1.11: left promiscuous mode [ 102.742461][ T862] br11: port 1(veth1.11) entered disabled state [ 102.980274][ T866] veth1: left allmulticast mode [ 102.980587][ T866] veth1: left promiscuous mode [ 103.083243][ T868] veth1.10: left allmulticast mode [ 103.083522][ T868] veth1.10: left promiscuous mode [ 103.083854][ T868] br10: port 1(veth1.10) entered disabled state [ 103.984170][ T882] [ 103.984306][ T882] ============================================ [ 103.984497][ T882] WARNING: possible recursive locking detected [ 103.984675][ T882] 6.13.0-rc5-virtme #1 Not tainted [ 103.984822][ T882] -------------------------------------------- [ 103.985008][ T882] ip/882 is trying to acquire lock: [ 103.985155][ T882] ffffffff987d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 103.985479][ T882] [ 103.985479][ T882] but task is already holding lock: [ 103.985697][ T882] ffffffff987d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 103.985997][ T882] [ 103.985997][ T882] other info that might help us debug this: [ 103.986212][ T882] Possible unsafe locking scenario: [ 103.986212][ T882] [ 103.986432][ T882] CPU0 [ 103.986550][ T882] ---- [ 103.986659][ T882] lock((netdev_chain).rwsem); [ 103.986804][ T882] lock((netdev_chain).rwsem); [ 103.986958][ T882] [ 103.986958][ T882] *** DEADLOCK *** [ 103.986958][ T882] [ 103.987181][ T882] May be due to missing lock nesting notation [ 103.987181][ T882] [ 103.987403][ T882] 2 locks held by ip/882: [ 103.987514][ T882] #0: ffffffff987e7a48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 103.987780][ T882] #1: ffffffff987d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 103.988074][ T882] [ 103.988074][ T882] stack backtrace: [ 103.988263][ T882] CPU: 2 UID: 0 PID: 882 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 103.988485][ T882] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 103.988671][ T882] Call Trace: [ 103.988784][ T882] [ 103.988861][ T882] dump_stack_lvl+0x82/0xd0 [ 103.989016][ T882] print_deadlock_bug+0x40a/0x650 [ 103.989164][ T882] validate_chain+0x5bf/0xae0 [ 103.989311][ T882] ? __pfx_validate_chain+0x10/0x10 [ 103.989466][ T882] ? hlock_class+0x4e/0x130 [ 103.989610][ T882] ? mark_lock+0x38/0x3e0 [ 103.989720][ T882] __lock_acquire+0xb9a/0x1680 [ 103.989868][ T882] lock_acquire.part.0+0xeb/0x330 [ 103.990017][ T882] ? blocking_notifier_call_chain+0x50/0x90 [ 103.990196][ T882] ? netconsole_process_cleanups_core+0x2e/0x3d0 [ 103.990382][ T882] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 103.990532][ T882] ? trace_lock_acquire+0x14c/0x1f0 [ 103.990675][ T882] ? lock_acquire+0x32/0xc0 [ 103.990820][ T882] ? blocking_notifier_call_chain+0x50/0x90 [ 103.991003][ T882] down_read+0x9f/0x340 [ 103.991116][ T882] ? blocking_notifier_call_chain+0x50/0x90 [ 103.991296][ T882] ? __pfx_down_read+0x10/0x10 [ 103.991440][ T882] ? __lock_release+0x103/0x460 [ 103.991589][ T882] ? netconsole_netdev_event+0x2c1/0x620 [ 103.991735][ T882] ? __pfx___lock_release+0x10/0x10 [ 103.991882][ T882] blocking_notifier_call_chain+0x50/0x90 [ 103.992029][ T882] __netdev_upper_dev_unlink+0xd9/0x220 [ 103.992177][ T882] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 103.992356][ T882] ? __mutex_unlock_slowpath+0x14a/0x3d0 [ 103.992506][ T882] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 103.992687][ T882] ? rtnl_is_locked+0x15/0x20 [ 103.992836][ T882] netdev_upper_dev_unlink+0x71/0xa0 [ 103.992980][ T882] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 103.993161][ T882] ? netconsole_netdev_event+0x2c1/0x620 [ 103.993309][ T882] ? mutex_is_locked+0x1c/0x60 [ 103.993457][ T882] ? rtnl_is_locked+0x15/0x20 [ 103.993604][ T882] ? netdev_master_upper_dev_get+0x13/0x120 [ 103.993784][ T882] vrf_device_event+0x78/0xe0 [vrf] [ 103.993937][ T882] notifier_call_chain+0xcd/0x150 [ 103.994082][ T882] blocking_notifier_call_chain+0x66/0x90 [ 103.994227][ T882] unregister_netdevice_many_notify+0xa7b/0x1580 [ 103.994406][ T882] ? hlock_class+0x4e/0x130 [ 103.994554][ T882] ? mark_lock+0x38/0x3e0 [ 103.994669][ T882] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 103.994849][ T882] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 103.995037][ T882] ? kfree+0xf3/0x330 [ 103.995151][ T882] ? vlan_vid_del+0x310/0x5e0 [ 103.995302][ T882] ? vlan_vid_del+0x310/0x5e0 [ 103.995450][ T882] rtnl_dellink+0x348/0xa40 [ 103.995598][ T882] ? __pfx_rtnl_dellink+0x10/0x10 [ 103.995761][ T882] ? find_held_lock+0x2c/0x110 [ 103.995914][ T882] ? __lock_release+0x103/0x460 [ 103.996059][ T882] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 103.996207][ T882] ? __pfx___lock_release+0x10/0x10 [ 103.996352][ T882] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 103.996498][ T882] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 103.996646][ T882] ? __pfx_rtnl_dellink+0x10/0x10 [ 103.996791][ T882] rtnetlink_rcv_msg+0x712/0xc10 [ 103.996944][ T882] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 103.997088][ T882] ? hlock_class+0x4e/0x130 [ 103.997232][ T882] ? mark_lock+0x38/0x3e0 [ 103.997342][ T882] ? __lock_acquire+0xb9a/0x1680 [ 103.997488][ T882] netlink_rcv_skb+0x130/0x360 [ 103.997636][ T882] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 103.997781][ T882] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 103.997935][ T882] ? netlink_deliver_tap+0x13e/0x340 [ 103.998084][ T882] ? netlink_deliver_tap+0xc3/0x340 [ 103.998239][ T882] netlink_unicast+0x44b/0x710 [ 103.998382][ T882] ? __pfx_netlink_unicast+0x10/0x10 [ 103.998525][ T882] ? find_held_lock+0x2c/0x110 [ 103.998674][ T882] netlink_sendmsg+0x723/0xbe0 [ 103.998818][ T882] ? __pfx_netlink_sendmsg+0x10/0x10 [ 103.998973][ T882] ____sys_sendmsg+0x7ac/0xa10 [ 103.999119][ T882] ? __pfx_____sys_sendmsg+0x10/0x10 [ 103.999264][ T882] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 103.999447][ T882] ___sys_sendmsg+0xee/0x170 [ 103.999591][ T882] ? __pfx____sys_sendmsg+0x10/0x10 [ 103.999738][ T882] ? kasan_save_stack+0x34/0x50 [ 103.999883][ T882] ? kasan_save_stack+0x24/0x50 [ 104.000029][ T882] ? __kasan_record_aux_stack+0x8e/0xa0 [ 104.000173][ T882] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 104.000356][ T882] ? __x64_sys_close+0x7c/0xd0 [ 104.000501][ T882] ? do_syscall_64+0xc1/0x1d0 [ 104.000648][ T882] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 104.000831][ T882] ? __lock_acquire+0xb9a/0x1680 [ 104.000979][ T882] ? find_held_lock+0x2c/0x110 [ 104.001123][ T882] ? __lock_release+0x103/0x460 [ 104.001272][ T882] ? __virt_addr_valid+0x22b/0x430 [ 104.001419][ T882] ? __pfx___lock_release+0x10/0x10 [ 104.001564][ T882] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 104.001711][ T882] __sys_sendmsg+0x109/0x1a0 [ 104.001854][ T882] ? __pfx___sys_sendmsg+0x10/0x10 [ 104.001997][ T882] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 104.002187][ T882] do_syscall_64+0xc1/0x1d0 [ 104.002330][ T882] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 104.002508][ T882] RIP: 0033:0x7f4654e249a7 [ 104.002665][ T882] 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 [ 104.003182][ T882] RSP: 002b:00007ffce8148628 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 104.003412][ T882] RAX: ffffffffffffffda RBX: 00007ffce8148d50 RCX: 00007f4654e249a7 [ 104.003630][ T882] RDX: 0000000000000000 RSI: 00007ffce8148690 RDI: 0000000000000005 [ 104.003850][ T882] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 104.004070][ T882] R10: 00007f4654ce2ef8 R11: 0000000000000246 R12: 0000000000000002 [ 104.004295][ T882] R13: 000000006778ffb1 R14: 0000000000498600 R15: 0000000000000000 [ 104.004516][ T882]