[ 14.943373][ T327] br1: port 1(vx10) entered blocking state [ 14.943801][ T327] br1: port 1(vx10) entered disabled state [ 14.944157][ T327] vx10: entered allmulticast mode [ 14.953142][ T327] vx10: entered promiscuous mode [ 14.954066][ T327] br1: port 1(vx10) entered blocking state [ 14.954398][ T327] br1: port 1(vx10) entered forwarding state [ 15.278108][ T332] br1: port 2(vx20) entered blocking state [ 15.278425][ T332] br1: port 2(vx20) entered disabled state [ 15.278731][ T332] vx20: entered allmulticast mode [ 15.280768][ T332] vx20: entered promiscuous mode [ 15.281568][ T332] br1: port 2(vx20) entered blocking state [ 15.281840][ T332] br1: port 2(vx20) entered forwarding state [ 15.434706][ T334] br1: port 3(veth1) entered blocking state [ 15.435005][ T334] br1: port 3(veth1) entered disabled state [ 15.435284][ T334] veth1: entered allmulticast mode [ 15.437223][ T334] veth1: entered promiscuous mode [ 15.509191][ T40] br1: port 3(veth1) entered blocking state [ 15.509659][ T40] br1: port 3(veth1) entered forwarding state [ 15.661024][ T337] br1: port 4(veth2) entered blocking state [ 15.661359][ T337] br1: port 4(veth2) entered disabled state [ 15.661676][ T337] veth2: entered allmulticast mode [ 15.664779][ T337] veth2: entered promiscuous mode [ 15.749455][ T40] br1: port 4(veth2) entered blocking state [ 15.749848][ T40] br1: port 4(veth2) entered forwarding state [ 16.377749][ T347] 8021q: 802.1Q VLAN Support v1.8 [ 16.406064][ T346] ip (346) used greatest stack depth: 23840 bytes left [ 16.682649][ T350] br1: entered promiscuous mode [ 16.685400][ T350] br1: left promiscuous mode [ 16.702846][ T350] br1: entered promiscuous mode [ 21.875436][ T422] br1: port 1(vx10) entered blocking state [ 21.876203][ T422] br1: port 1(vx10) entered disabled state [ 21.876486][ T422] vx10: entered allmulticast mode [ 21.878398][ T422] vx10: entered promiscuous mode [ 21.879832][ T422] br1: port 1(vx10) entered blocking state [ 21.880084][ T422] br1: port 1(vx10) entered forwarding state [ 22.178049][ T426] br1: port 2(vx20) entered blocking state [ 22.178322][ T426] br1: port 2(vx20) entered disabled state [ 22.178597][ T426] vx20: entered allmulticast mode [ 22.180438][ T426] vx20: entered promiscuous mode [ 22.180928][ T426] br1: port 2(vx20) entered blocking state [ 22.181165][ T426] br1: port 2(vx20) entered forwarding state [ 22.338905][ T428] br1: port 3(w1) entered blocking state [ 22.339225][ T428] br1: port 3(w1) entered disabled state [ 22.339466][ T428] w1: entered allmulticast mode [ 22.341413][ T428] w1: entered promiscuous mode [ 22.414504][ T37] br1: port 3(w1) entered blocking state [ 22.414948][ T37] br1: port 3(w1) entered forwarding state [ 22.560666][ T431] br1: port 4(w3) entered blocking state [ 22.560960][ T431] br1: port 4(w3) entered disabled state [ 22.561182][ T431] w3: entered allmulticast mode [ 22.564109][ T431] w3: entered promiscuous mode [ 22.637072][ T37] br1: port 4(w3) entered blocking state [ 22.637330][ T37] br1: port 4(w3) entered forwarding state [ 23.408547][ T441] br1: entered promiscuous mode [ 23.412174][ T441] br1: left promiscuous mode [ 23.435048][ T441] br1: entered promiscuous mode [ 24.058058][ C1] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 24.060097][ C1] IPv6: vlan20-v: IPv6 duplicate address fe80::200:5eff:fe00:101 used by 00:00:5e:00:01:01 detected! [ 24.267043][ C1] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 24.458606][ C3] IPv6: vlan20-v: IPv6 duplicate address 2001:db8:2::3 used by 00:00:5e:00:01:01 detected! [ 24.650104][ C1] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 24.842550][ C1] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 24.843623][ C1] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 24.890303][ C2] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 24.892913][ C2] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 25.122693][ C2] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 47.307344][ T11] w3: left allmulticast mode [ 47.307754][ T11] w3: left promiscuous mode [ 47.308104][ T11] br1: port 4(w3) entered disabled state [ 47.311291][ T11] w1: left allmulticast mode [ 47.311474][ T11] w1: left promiscuous mode [ 47.311836][ T11] br1: port 3(w1) entered disabled state [ 47.313670][ T11] vx20: left allmulticast mode [ 47.313900][ T11] vx20: left promiscuous mode [ 47.314193][ T11] br1: port 2(vx20) entered disabled state [ 47.316112][ T11] vx10: left allmulticast mode [ 47.316288][ T11] vx10: left promiscuous mode [ 47.316867][ T11] br1: port 1(vx10) entered disabled state [ 47.346211][ T11] [ 47.346321][ T11] ============================================ [ 47.346504][ T11] WARNING: possible recursive locking detected [ 47.346681][ T11] 6.13.0-rc5-virtme #1 Not tainted [ 47.346825][ T11] -------------------------------------------- [ 47.347003][ T11] kworker/u16:0/11 is trying to acquire lock: [ 47.347175][ T11] ffffffffa17d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 47.347504][ T11] [ 47.347504][ T11] but task is already holding lock: [ 47.347709][ T11] ffffffffa17d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 47.347986][ T11] [ 47.347986][ T11] other info that might help us debug this: [ 47.348187][ T11] Possible unsafe locking scenario: [ 47.348187][ T11] [ 47.348392][ T11] CPU0 [ 47.348500][ T11] ---- [ 47.348604][ T11] lock((netdev_chain).rwsem); [ 47.348743][ T11] lock((netdev_chain).rwsem); [ 47.348881][ T11] [ 47.348881][ T11] *** DEADLOCK *** [ 47.348881][ T11] [ 47.349083][ T11] May be due to missing lock nesting notation [ 47.349083][ T11] [ 47.349286][ T11] 5 locks held by kworker/u16:0/11: [ 47.349425][ T11] #0: ffff8880010ad948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0 [ 47.349716][ T11] #1: ffffc900000b7da0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0 [ 47.349961][ T11] #2: ffffffffa17cc090 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbc/0xa50 [ 47.350210][ T11] #3: ffffffffa17e7a48 (rtnl_mutex){+.+.}-{4:4}, at: cleanup_net+0x45e/0xa50 [ 47.350461][ T11] #4: ffffffffa17d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 47.350746][ T11] [ 47.350746][ T11] stack backtrace: [ 47.350916][ T11] CPU: 1 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.13.0-rc5-virtme #1 [ 47.351155][ T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 47.351331][ T11] Workqueue: netns cleanup_net [ 47.351483][ T11] Call Trace: [ 47.351589][ T11] [ 47.351663][ T11] dump_stack_lvl+0x82/0xd0 [ 47.351810][ T11] print_deadlock_bug+0x40a/0x650 [ 47.351953][ T11] validate_chain+0x5bf/0xae0 [ 47.352095][ T11] ? __pfx_validate_chain+0x10/0x10 [ 47.352236][ T11] ? hlock_class+0x4e/0x130 [ 47.352377][ T11] ? mark_lock+0x38/0x3e0 [ 47.352489][ T11] __lock_acquire+0xb9a/0x1680 [ 47.352629][ T11] ? spin_bug+0x1b1/0x1d0 [ 47.352737][ T11] ? debug_object_assert_init+0x2a9/0x370 [ 47.352879][ T11] lock_acquire.part.0+0xeb/0x330 [ 47.353020][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 47.353196][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 47.353336][ T11] ? trace_lock_acquire+0x14c/0x1f0 [ 47.353480][ T11] ? lock_acquire+0x32/0xc0 [ 47.353619][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 47.353791][ T11] down_read+0x9f/0x340 [ 47.353957][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 47.354132][ T11] ? __pfx_down_read+0x10/0x10 [ 47.354272][ T11] blocking_notifier_call_chain+0x50/0x90 [ 47.354411][ T11] __dev_close_many+0xdf/0x2d0 [ 47.354549][ T11] ? __pfx___dev_close_many+0x10/0x10 [ 47.354703][ T11] dev_close_many+0x202/0x650 [ 47.354844][ T11] ? __lock_release+0x103/0x460 [ 47.354983][ T11] ? __pfx_dev_close_many+0x10/0x10 [ 47.355122][ T11] ? __pfx___lock_release+0x10/0x10 [ 47.355263][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 47.355404][ T11] vlan_device_event+0x143b/0x2130 [8021q] [ 47.355586][ T11] ? net_generic+0xbb/0x1f0 [vxlan] [ 47.355816][ T11] ? __pfx_vlan_device_event+0x10/0x10 [8021q] [ 47.355990][ T11] ? __pfx_vxlan_netdevice_event+0x10/0x10 [vxlan] [ 47.356173][ T11] ? packet_notifier+0x3b0/0x810 [ 47.356395][ T11] notifier_call_chain+0xcd/0x150 [ 47.356537][ T11] blocking_notifier_call_chain+0x66/0x90 [ 47.356676][ T11] dev_close_many+0x2d8/0x650 [ 47.356819][ T11] ? __lock_release+0x103/0x460 [ 47.357034][ T11] ? __virt_addr_valid+0x22b/0x430 [ 47.357176][ T11] ? __pfx_dev_close_many+0x10/0x10 [ 47.357327][ T11] unregister_netdevice_many_notify+0x8e5/0x1580 [ 47.357501][ T11] ? mark_held_locks+0x9e/0xe0 [ 47.357719][ T11] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 47.357892][ T11] ? mutex_is_locked+0x1c/0x60 [ 47.358035][ T11] ? rtnl_is_locked+0x15/0x20 [ 47.358177][ T11] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 47.358428][ T11] ? mutex_is_locked+0x1c/0x60 [ 47.358567][ T11] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 47.358746][ T11] cleanup_net+0x4cf/0xa50 [ 47.358963][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 47.359102][ T11] ? __pfx_cleanup_net+0x10/0x10 [ 47.359247][ T11] ? trace_lock_acquire+0x14c/0x1f0 [ 47.359387][ T11] ? lock_acquire+0x32/0xc0 [ 47.359526][ T11] ? process_one_work+0xe0b/0x16d0 [ 47.359666][ T11] process_one_work+0xe55/0x16d0 [ 47.359807][ T11] ? __pfx___lock_release+0x10/0x10 [ 47.359947][ T11] ? __pfx_process_one_work+0x10/0x10 [ 47.360165][ T11] ? assign_work+0x16c/0x240 [ 47.360312][ T11] worker_thread+0x58c/0xce0 [ 47.360454][ T11] ? __pfx_worker_thread+0x10/0x10 [ 47.360590][ T11] kthread+0x28a/0x350 [ 47.360696][ T11] ? __pfx_kthread+0x10/0x10 [ 47.360914][ T11] ret_from_fork+0x31/0x70 [ 47.361055][ T11] ? __pfx_kthread+0x10/0x10 [ 47.361195][ T11] ret_from_fork_asm+0x1a/0x30 [ 47.361340][ T11] [ 48.922812][ T664] br1: left promiscuous mode [ 49.357892][ T671] br1: port 4(veth2) entered disabled state [ 49.408302][ T672] veth2: left allmulticast mode [ 49.408695][ T672] veth2: left promiscuous mode [ 49.408974][ T672] br1: port 4(veth2) entered disabled state [ 49.513175][ T674] br1: port 3(veth1) entered disabled state [ 49.566950][ T675] veth1: left allmulticast mode [ 49.567158][ T675] veth1: left promiscuous mode [ 49.567438][ T675] br1: port 3(veth1) entered disabled state [ 49.675808][ T677] vx20: left allmulticast mode [ 49.676006][ T677] vx20: left promiscuous mode [ 49.676269][ T677] br1: port 2(vx20) entered disabled state [ 49.930178][ T681] vx10: left allmulticast mode [ 49.930374][ T681] vx10: left promiscuous mode [ 49.930875][ T681] br1: port 1(vx10) entered disabled state