[ 10.593024][ T249] ip (249) used greatest stack depth: 24416 bytes left [ 15.120866][ T326] br1: port 1(vx10) entered blocking state [ 15.121290][ T326] br1: port 1(vx10) entered disabled state [ 15.121663][ T326] vx10: entered allmulticast mode [ 15.123577][ T326] vx10: entered promiscuous mode [ 15.124642][ T326] br1: port 1(vx10) entered blocking state [ 15.124966][ T326] br1: port 1(vx10) entered forwarding state [ 15.463470][ T331] br1: port 2(vx20) entered blocking state [ 15.463738][ T331] br1: port 2(vx20) entered disabled state [ 15.464005][ T331] vx20: entered allmulticast mode [ 15.466395][ T331] vx20: entered promiscuous mode [ 15.467153][ T331] br1: port 2(vx20) entered blocking state [ 15.467410][ T331] br1: port 2(vx20) entered forwarding state [ 15.651415][ T333] br1: port 3(veth1) entered blocking state [ 15.652049][ T333] br1: port 3(veth1) entered disabled state [ 15.653311][ T333] veth1: entered allmulticast mode [ 15.655276][ T333] veth1: entered promiscuous mode [ 15.738237][ T39] br1: port 3(veth1) entered blocking state [ 15.738642][ T39] br1: port 3(veth1) entered forwarding state [ 15.884552][ T336] br1: port 4(veth2) entered blocking state [ 15.884937][ T336] br1: port 4(veth2) entered disabled state [ 15.885238][ T336] veth2: entered allmulticast mode [ 15.887115][ T336] veth2: entered promiscuous mode [ 15.953748][ T37] br1: port 4(veth2) entered blocking state [ 15.954126][ T37] br1: port 4(veth2) entered forwarding state [ 16.257409][ T342] br1: port 5(vx4001) entered blocking state [ 16.257706][ T342] br1: port 5(vx4001) entered disabled state [ 16.257986][ T342] vx4001: entered allmulticast mode [ 16.267933][ T342] vx4001: entered promiscuous mode [ 16.269053][ T342] br1: port 5(vx4001) entered blocking state [ 16.269309][ T342] br1: port 5(vx4001) entered forwarding state [ 16.922649][ T351] 8021q: 802.1Q VLAN Support v1.8 [ 17.241652][ T354] br1: entered promiscuous mode [ 17.244269][ T354] br1: left promiscuous mode [ 17.253834][ T354] br1: entered promiscuous mode [ 18.599786][ T377] ip (377) used greatest stack depth: 23632 bytes left [ 22.863814][ T437] br1: port 1(vx10) entered blocking state [ 22.864154][ T437] br1: port 1(vx10) entered disabled state [ 22.864473][ T437] vx10: entered allmulticast mode [ 22.866821][ T437] vx10: entered promiscuous mode [ 22.867708][ T437] br1: port 1(vx10) entered blocking state [ 22.867973][ T437] br1: port 1(vx10) entered forwarding state [ 23.234491][ T441] br1: port 2(vx20) entered blocking state [ 23.234800][ T441] br1: port 2(vx20) entered disabled state [ 23.235099][ T441] vx20: entered allmulticast mode [ 23.237083][ T441] vx20: entered promiscuous mode [ 23.237656][ T441] br1: port 2(vx20) entered blocking state [ 23.237917][ T441] br1: port 2(vx20) entered forwarding state [ 23.550346][ T445] br1: port 3(vx4001) entered blocking state [ 23.550672][ T445] br1: port 3(vx4001) entered disabled state [ 23.550971][ T445] vx4001: entered allmulticast mode [ 23.552915][ T445] vx4001: entered promiscuous mode [ 23.553477][ T445] br1: port 3(vx4001) entered blocking state [ 23.553741][ T445] br1: port 3(vx4001) entered forwarding state [ 23.720926][ T447] br1: port 4(w1) entered blocking state [ 23.721159][ T447] br1: port 4(w1) entered disabled state [ 23.722616][ T447] w1: entered allmulticast mode [ 23.724610][ T447] w1: entered promiscuous mode [ 23.816995][ T37] br1: port 4(w1) entered blocking state [ 23.817331][ T37] br1: port 4(w1) entered forwarding state [ 24.024694][ T450] br1: port 5(w3) entered blocking state [ 24.024996][ T450] br1: port 5(w3) entered disabled state [ 24.025276][ T450] w3: entered allmulticast mode [ 24.027318][ T450] w3: entered promiscuous mode [ 24.112990][ T37] br1: port 5(w3) entered blocking state [ 24.113339][ T37] br1: port 5(w3) entered forwarding state [ 24.871443][ T460] br1: entered promiscuous mode [ 24.874253][ T460] br1: left promiscuous mode [ 24.887884][ T460] br1: entered promiscuous mode [ 25.734065][ C1] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 25.736394][ C1] IPv6: vlan10-v: IPv6 duplicate address fe80::200:5eff:fe00:101 used by 00:00:5e:00:01:01 detected! [ 25.863488][ C3] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 25.926217][ C2] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 26.309802][ C0] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 26.310774][ C0] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 26.311267][ C0] IPv6: vlan20-v: IPv6 duplicate address fe80::200:5eff:fe00:101 used by 00:00:5e:00:01:01 detected! [ 42.902137][ T11] w3: left allmulticast mode [ 42.902532][ T11] w3: left promiscuous mode [ 42.902952][ T11] br1: port 5(w3) entered disabled state [ 42.918378][ T11] w1: left allmulticast mode [ 42.918598][ T11] w1: left promiscuous mode [ 42.918952][ T11] br1: port 4(w1) entered disabled state [ 42.922319][ T11] vx4001: left allmulticast mode [ 42.922528][ T11] vx4001: left promiscuous mode [ 42.922836][ T11] br1: port 3(vx4001) entered disabled state [ 42.925002][ T11] vx20: left allmulticast mode [ 42.925222][ T11] vx20: left promiscuous mode [ 42.925683][ T11] br1: port 2(vx20) entered disabled state [ 42.929062][ T11] vx10: left allmulticast mode [ 42.929432][ T11] vx10: left promiscuous mode [ 42.929776][ T11] br1: port 1(vx10) entered disabled state [ 42.954603][ T11] [ 42.954732][ T11] ============================================ [ 42.954956][ T11] WARNING: possible recursive locking detected [ 42.955196][ T11] 6.13.0-rc5-virtme #1 Not tainted [ 42.955360][ T11] -------------------------------------------- [ 42.955548][ T11] kworker/u16:0/11 is trying to acquire lock: [ 42.955743][ T11] ffffffffbb9d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 42.956068][ T11] [ 42.956068][ T11] but task is already holding lock: [ 42.956296][ T11] ffffffffbb9d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 42.956615][ T11] [ 42.956615][ T11] other info that might help us debug this: [ 42.956837][ T11] Possible unsafe locking scenario: [ 42.956837][ T11] [ 42.957060][ T11] CPU0 [ 42.957178][ T11] ---- [ 42.957293][ T11] lock((netdev_chain).rwsem); [ 42.957446][ T11] lock((netdev_chain).rwsem); [ 42.957598][ T11] [ 42.957598][ T11] *** DEADLOCK *** [ 42.957598][ T11] [ 42.957831][ T11] May be due to missing lock nesting notation [ 42.957831][ T11] [ 42.958051][ T11] 5 locks held by kworker/u16:0/11: [ 42.958203][ T11] #0: ffff8880010ad948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0 [ 42.958512][ T11] #1: ffffc900000b7da0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0 [ 42.958786][ T11] #2: ffffffffbb9cc090 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbc/0xa50 [ 42.959056][ T11] #3: ffffffffbb9e7a48 (rtnl_mutex){+.+.}-{4:4}, at: cleanup_net+0x45e/0xa50 [ 42.959335][ T11] #4: ffffffffbb9d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 42.959641][ T11] [ 42.959641][ T11] stack backtrace: [ 42.959843][ T11] CPU: 2 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.13.0-rc5-virtme #1 [ 42.960105][ T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 42.960307][ T11] Workqueue: netns cleanup_net [ 42.960465][ T11] Call Trace: [ 42.960582][ T11] [ 42.960669][ T11] dump_stack_lvl+0x82/0xd0 [ 42.960828][ T11] print_deadlock_bug+0x40a/0x650 [ 42.960980][ T11] validate_chain+0x5bf/0xae0 [ 42.961139][ T11] ? __pfx_validate_chain+0x10/0x10 [ 42.961295][ T11] ? hlock_class+0x4e/0x130 [ 42.961455][ T11] ? mark_lock+0x38/0x3e0 [ 42.961572][ T11] __lock_acquire+0xb9a/0x1680 [ 42.961729][ T11] ? spin_bug+0x1b1/0x1d0 [ 42.961863][ T11] ? debug_object_assert_init+0x2a9/0x370 [ 42.962029][ T11] lock_acquire.part.0+0xeb/0x330 [ 42.962222][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 42.962426][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 42.962579][ T11] ? trace_lock_acquire+0x14c/0x1f0 [ 42.962736][ T11] ? lock_acquire+0x32/0xc0 [ 42.962891][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 42.963088][ T11] down_read+0x9f/0x340 [ 42.963215][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 42.963418][ T11] ? __pfx_down_read+0x10/0x10 [ 42.963570][ T11] blocking_notifier_call_chain+0x50/0x90 [ 42.963721][ T11] __dev_close_many+0xdf/0x2d0 [ 42.963875][ T11] ? __pfx___dev_close_many+0x10/0x10 [ 42.964031][ T11] dev_close_many+0x202/0x650 [ 42.964185][ T11] ? __lock_release+0x103/0x460 [ 42.964354][ T11] ? __pfx_dev_close_many+0x10/0x10 [ 42.964518][ T11] ? __pfx___lock_release+0x10/0x10 [ 42.964675][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 42.964834][ T11] vlan_device_event+0x143b/0x2130 [8021q] [ 42.965034][ T11] ? net_generic+0xbb/0x1f0 [vxlan] [ 42.965213][ T11] ? __pfx_vlan_device_event+0x10/0x10 [8021q] [ 42.965410][ T11] ? __pfx_vxlan_netdevice_event+0x10/0x10 [vxlan] [ 42.965625][ T11] ? packet_notifier+0x3b0/0x810 [ 42.965786][ T11] notifier_call_chain+0xcd/0x150 [ 42.965946][ T11] blocking_notifier_call_chain+0x66/0x90 [ 42.966105][ T11] dev_close_many+0x2d8/0x650 [ 42.966313][ T11] ? __lock_release+0x103/0x460 [ 42.966503][ T11] ? __virt_addr_valid+0x22b/0x430 [ 42.966678][ T11] ? __pfx_dev_close_many+0x10/0x10 [ 42.966848][ T11] unregister_netdevice_many_notify+0x8e5/0x1580 [ 42.967058][ T11] ? mark_held_locks+0x9e/0xe0 [ 42.967221][ T11] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 42.967422][ T11] ? mutex_is_locked+0x1c/0x60 [ 42.967588][ T11] ? rtnl_is_locked+0x15/0x20 [ 42.967764][ T11] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 42.967963][ T11] ? mutex_is_locked+0x1c/0x60 [ 42.968121][ T11] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 42.968331][ T11] cleanup_net+0x4cf/0xa50 [ 42.968487][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 42.968653][ T11] ? __pfx_cleanup_net+0x10/0x10 [ 42.968817][ T11] ? trace_lock_acquire+0x14c/0x1f0 [ 42.968976][ T11] ? lock_acquire+0x32/0xc0 [ 42.969140][ T11] ? process_one_work+0xe0b/0x16d0 [ 42.969312][ T11] process_one_work+0xe55/0x16d0 [ 42.969472][ T11] ? __pfx___lock_release+0x10/0x10 [ 42.969631][ T11] ? __pfx_process_one_work+0x10/0x10 [ 42.969800][ T11] ? assign_work+0x16c/0x240 [ 42.969969][ T11] worker_thread+0x58c/0xce0 [ 42.970131][ T11] ? __pfx_worker_thread+0x10/0x10 [ 42.970300][ T11] kthread+0x28a/0x350 [ 42.970421][ T11] ? __pfx_kthread+0x10/0x10 [ 42.970591][ T11] ret_from_fork+0x31/0x70 [ 42.970770][ T11] ? __pfx_kthread+0x10/0x10 [ 42.970929][ T11] ret_from_fork_asm+0x1a/0x30 [ 42.971090][ T11] [ 44.832433][ T650] br1: left promiscuous mode [ 45.300179][ T656] br1: port 4(veth2) entered disabled state [ 45.366377][ T657] veth2: left allmulticast mode [ 45.366573][ T657] veth2: left promiscuous mode [ 45.366852][ T657] br1: port 4(veth2) entered disabled state [ 45.484740][ T659] br1: port 3(veth1) entered disabled state [ 45.543740][ T660] veth1: left allmulticast mode [ 45.543978][ T660] veth1: left promiscuous mode [ 45.544730][ T660] br1: port 3(veth1) entered disabled state [ 45.659330][ T662] vx4001: left allmulticast mode [ 45.659567][ T662] vx4001: left promiscuous mode [ 45.659853][ T662] br1: port 5(vx4001) entered disabled state [ 45.958835][ T666] vx20: left allmulticast mode [ 45.959043][ T666] vx20: left promiscuous mode [ 45.959334][ T666] br1: port 2(vx20) entered disabled state [ 46.208499][ T670] vx10: left allmulticast mode [ 46.208692][ T670] vx10: left promiscuous mode [ 46.208949][ T670] br1: port 1(vx10) entered disabled state