[ 15.229075][ T321] ip (321) used greatest stack depth: 24176 bytes left [ 15.372858][ T325] br1: port 1(vx10) entered blocking state [ 15.373294][ T325] br1: port 1(vx10) entered disabled state [ 15.373707][ T325] vx10: entered allmulticast mode [ 15.383300][ T325] vx10: entered promiscuous mode [ 15.384299][ T325] br1: port 1(vx10) entered blocking state [ 15.384681][ T325] br1: port 1(vx10) entered forwarding state [ 15.728718][ T330] br1: port 2(vx20) entered blocking state [ 15.728993][ T330] br1: port 2(vx20) entered disabled state [ 15.729262][ T330] vx20: entered allmulticast mode [ 15.731233][ T330] vx20: entered promiscuous mode [ 15.732924][ T330] br1: port 2(vx20) entered blocking state [ 15.733172][ T330] br1: port 2(vx20) entered forwarding state [ 15.905007][ T332] br1: port 3(veth1) entered blocking state [ 15.905438][ T332] br1: port 3(veth1) entered disabled state [ 15.905863][ T332] veth1: entered allmulticast mode [ 15.909575][ T332] veth1: entered promiscuous mode [ 15.996854][ T39] br1: port 3(veth1) entered blocking state [ 15.997320][ T39] br1: port 3(veth1) entered forwarding state [ 16.180318][ T335] br1: port 4(veth2) entered blocking state [ 16.180981][ T335] br1: port 4(veth2) entered disabled state [ 16.181263][ T335] veth2: entered allmulticast mode [ 16.183431][ T335] veth2: entered promiscuous mode [ 16.287791][ T136] br1: port 4(veth2) entered blocking state [ 16.288098][ T136] br1: port 4(veth2) entered forwarding state [ 17.002986][ T345] 8021q: 802.1Q VLAN Support v1.8 [ 17.036352][ T344] ip (344) used greatest stack depth: 23840 bytes left [ 17.293669][ T349] br1: entered promiscuous mode [ 17.296683][ T349] br1: left promiscuous mode [ 17.313239][ T349] br1: entered promiscuous mode [ 22.692253][ T423] br1: port 1(vx10) entered blocking state [ 22.692636][ T423] br1: port 1(vx10) entered disabled state [ 22.692923][ T423] vx10: entered allmulticast mode [ 22.694923][ T423] vx10: entered promiscuous mode [ 22.696162][ T423] br1: port 1(vx10) entered blocking state [ 22.696513][ T423] br1: port 1(vx10) entered forwarding state [ 23.008189][ T427] br1: port 2(vx20) entered blocking state [ 23.008490][ T427] br1: port 2(vx20) entered disabled state [ 23.008760][ T427] vx20: entered allmulticast mode [ 23.010673][ T427] vx20: entered promiscuous mode [ 23.011167][ T427] br1: port 2(vx20) entered blocking state [ 23.011419][ T427] br1: port 2(vx20) entered forwarding state [ 23.196900][ T429] br1: port 3(w1) entered blocking state [ 23.197165][ T429] br1: port 3(w1) entered disabled state [ 23.197989][ T429] w1: entered allmulticast mode [ 23.199849][ T429] w1: entered promiscuous mode [ 23.284027][ T122] br1: port 3(w1) entered blocking state [ 23.284300][ T122] br1: port 3(w1) entered forwarding state [ 23.455452][ T432] br1: port 4(w3) entered blocking state [ 23.455899][ T432] br1: port 4(w3) entered disabled state [ 23.456274][ T432] w3: entered allmulticast mode [ 23.461371][ T432] w3: entered promiscuous mode [ 23.575087][ T39] br1: port 4(w3) entered blocking state [ 23.575399][ T39] br1: port 4(w3) entered forwarding state [ 24.386921][ T442] br1: entered promiscuous mode [ 24.390203][ T442] br1: left promiscuous mode [ 24.414084][ T442] br1: entered promiscuous mode [ 24.936160][ C3] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 25.031856][ C3] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 25.035008][ C3] IPv6: vlan10-v: IPv6 duplicate address 2001:db8:1::3 used by 00:00:5e:00:01:01 detected! [ 25.351873][ C1] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 25.353105][ C1] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 25.353763][ C1] IPv6: vlan20-v: IPv6 duplicate address fe80::200:5eff:fe00:101 used by 00:00:5e:00:01:01 detected! [ 25.416193][ C2] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 25.672885][ C3] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 25.673762][ C3] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 25.674230][ C3] IPv6: vlan20-v: IPv6 duplicate address 2001:db8:2::3 used by 00:00:5e:00:01:01 detected! [ 48.670584][ T643] ip (643) used greatest stack depth: 23440 bytes left [ 48.741961][ T11] w3: left allmulticast mode [ 48.742501][ T11] w3: left promiscuous mode [ 48.743056][ T11] br1: port 4(w3) entered disabled state [ 48.754128][ T11] w1: left allmulticast mode [ 48.754514][ T11] w1: left promiscuous mode [ 48.754836][ T11] br1: port 3(w1) entered disabled state [ 48.766006][ T11] vx20: left allmulticast mode [ 48.766265][ T11] vx20: left promiscuous mode [ 48.767070][ T11] br1: port 2(vx20) entered disabled state [ 48.768511][ T11] vx10: left allmulticast mode [ 48.768737][ T11] vx10: left promiscuous mode [ 48.769256][ T11] br1: port 1(vx10) entered disabled state [ 48.798708][ T11] [ 48.798826][ T11] ============================================ [ 48.799013][ T11] WARNING: possible recursive locking detected [ 48.799183][ T11] 6.13.0-rc5-virtme #1 Not tainted [ 48.799323][ T11] -------------------------------------------- [ 48.799498][ T11] kworker/u16:0/11 is trying to acquire lock: [ 48.799672][ T11] ffffffff94fd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 48.799959][ T11] [ 48.799959][ T11] but task is already holding lock: [ 48.800169][ T11] ffffffff94fd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 48.800447][ T11] [ 48.800447][ T11] other info that might help us debug this: [ 48.800649][ T11] Possible unsafe locking scenario: [ 48.800649][ T11] [ 48.800852][ T11] CPU0 [ 48.800957][ T11] ---- [ 48.801060][ T11] lock((netdev_chain).rwsem); [ 48.801205][ T11] lock((netdev_chain).rwsem); [ 48.801342][ T11] [ 48.801342][ T11] *** DEADLOCK *** [ 48.801342][ T11] [ 48.801546][ T11] May be due to missing lock nesting notation [ 48.801546][ T11] [ 48.801758][ T11] 5 locks held by kworker/u16:0/11: [ 48.801899][ T11] #0: ffff8880010ad948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0 [ 48.802198][ T11] #1: ffffc900000b7da0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0 [ 48.802463][ T11] #2: ffffffff94fcc090 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbc/0xa50 [ 48.802715][ T11] #3: ffffffff94fe7a48 (rtnl_mutex){+.+.}-{4:4}, at: cleanup_net+0x45e/0xa50 [ 48.802960][ T11] #4: ffffffff94fd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 48.803267][ T11] [ 48.803267][ T11] stack backtrace: [ 48.803437][ T11] CPU: 2 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.13.0-rc5-virtme #1 [ 48.803682][ T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 48.803862][ T11] Workqueue: netns cleanup_net [ 48.804008][ T11] Call Trace: [ 48.804116][ T11] [ 48.804191][ T11] dump_stack_lvl+0x82/0xd0 [ 48.804349][ T11] print_deadlock_bug+0x40a/0x650 [ 48.804495][ T11] validate_chain+0x5bf/0xae0 [ 48.804641][ T11] ? __pfx_validate_chain+0x10/0x10 [ 48.804788][ T11] ? hlock_class+0x4e/0x130 [ 48.804934][ T11] ? mark_lock+0x38/0x3e0 [ 48.805043][ T11] __lock_acquire+0xb9a/0x1680 [ 48.805185][ T11] ? spin_bug+0x1b1/0x1d0 [ 48.805295][ T11] ? debug_object_assert_init+0x2a9/0x370 [ 48.805446][ T11] lock_acquire.part.0+0xeb/0x330 [ 48.805588][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 48.805790][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 48.805931][ T11] ? trace_lock_acquire+0x14c/0x1f0 [ 48.806076][ T11] ? lock_acquire+0x32/0xc0 [ 48.806219][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 48.806399][ T11] down_read+0x9f/0x340 [ 48.806518][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 48.806694][ T11] ? __pfx_down_read+0x10/0x10 [ 48.806837][ T11] blocking_notifier_call_chain+0x50/0x90 [ 48.806979][ T11] __dev_close_many+0xdf/0x2d0 [ 48.807118][ T11] ? __pfx___dev_close_many+0x10/0x10 [ 48.807264][ T11] dev_close_many+0x202/0x650 [ 48.807406][ T11] ? __lock_release+0x103/0x460 [ 48.807638][ T11] ? __pfx_dev_close_many+0x10/0x10 [ 48.807781][ T11] ? __pfx___lock_release+0x10/0x10 [ 48.807924][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 48.808069][ T11] vlan_device_event+0x143b/0x2130 [8021q] [ 48.808330][ T11] ? net_generic+0xbb/0x1f0 [vxlan] [ 48.808483][ T11] ? __pfx_vlan_device_event+0x10/0x10 [8021q] [ 48.808667][ T11] ? __pfx_vxlan_netdevice_event+0x10/0x10 [vxlan] [ 48.808858][ T11] ? packet_notifier+0x3b0/0x810 [ 48.809008][ T11] notifier_call_chain+0xcd/0x150 [ 48.809151][ T11] blocking_notifier_call_chain+0x66/0x90 [ 48.809297][ T11] dev_close_many+0x2d8/0x650 [ 48.809439][ T11] ? __lock_release+0x103/0x460 [ 48.809581][ T11] ? __virt_addr_valid+0x22b/0x430 [ 48.809814][ T11] ? __pfx_dev_close_many+0x10/0x10 [ 48.809961][ T11] unregister_netdevice_many_notify+0x8e5/0x1580 [ 48.810138][ T11] ? mark_held_locks+0x9e/0xe0 [ 48.810279][ T11] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 48.810457][ T11] ? mutex_is_locked+0x1c/0x60 [ 48.810608][ T11] ? rtnl_is_locked+0x15/0x20 [ 48.810829][ T11] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 48.811012][ T11] ? mutex_is_locked+0x1c/0x60 [ 48.811153][ T11] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 48.811410][ T11] cleanup_net+0x4cf/0xa50 [ 48.811548][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 48.811689][ T11] ? __pfx_cleanup_net+0x10/0x10 [ 48.811826][ T11] ? trace_lock_acquire+0x14c/0x1f0 [ 48.812043][ T11] ? lock_acquire+0x32/0xc0 [ 48.812184][ T11] ? process_one_work+0xe0b/0x16d0 [ 48.812326][ T11] process_one_work+0xe55/0x16d0 [ 48.812465][ T11] ? __pfx___lock_release+0x10/0x10 [ 48.812681][ T11] ? __pfx_process_one_work+0x10/0x10 [ 48.812821][ T11] ? assign_work+0x16c/0x240 [ 48.812960][ T11] worker_thread+0x58c/0xce0 [ 48.813103][ T11] ? __pfx_worker_thread+0x10/0x10 [ 48.813322][ T11] kthread+0x28a/0x350 [ 48.813428][ T11] ? __pfx_kthread+0x10/0x10 [ 48.813567][ T11] ret_from_fork+0x31/0x70 [ 48.813708][ T11] ? __pfx_kthread+0x10/0x10 [ 48.813926][ T11] ret_from_fork_asm+0x1a/0x30 [ 48.814075][ T11] [ 50.483181][ T665] br1: left promiscuous mode [ 50.946863][ T671] br1: port 4(veth2) entered disabled state [ 51.006169][ T672] veth2: left allmulticast mode [ 51.006360][ T672] veth2: left promiscuous mode [ 51.006642][ T672] br1: port 4(veth2) entered disabled state [ 51.122730][ T674] br1: port 3(veth1) entered disabled state [ 51.180795][ T675] veth1: left allmulticast mode [ 51.181013][ T675] veth1: left promiscuous mode [ 51.181288][ T675] br1: port 3(veth1) entered disabled state [ 51.298869][ T677] vx20: left allmulticast mode [ 51.299083][ T677] vx20: left promiscuous mode [ 51.299362][ T677] br1: port 2(vx20) entered disabled state [ 51.549149][ T681] vx10: left allmulticast mode [ 51.549409][ T681] vx10: left promiscuous mode [ 51.549701][ T681] br1: port 1(vx10) entered disabled state