[ 10.611945][ T251] ip (251) used greatest stack depth: 24288 bytes left [ 15.340664][ T329] br1: port 1(vx10) entered blocking state [ 15.341118][ T329] br1: port 1(vx10) entered disabled state [ 15.341498][ T329] vx10: entered allmulticast mode [ 15.344428][ T329] vx10: entered promiscuous mode [ 15.345378][ T329] br1: port 1(vx10) entered blocking state [ 15.345728][ T329] br1: port 1(vx10) entered forwarding state [ 15.682563][ T334] br1: port 2(vx20) entered blocking state [ 15.682872][ T334] br1: port 2(vx20) entered disabled state [ 15.684244][ T334] vx20: entered allmulticast mode [ 15.686238][ T334] vx20: entered promiscuous mode [ 15.687038][ T334] br1: port 2(vx20) entered blocking state [ 15.687341][ T334] br1: port 2(vx20) entered forwarding state [ 15.851864][ T336] br1: port 3(veth1) entered blocking state [ 15.852152][ T336] br1: port 3(veth1) entered disabled state [ 15.852444][ T336] veth1: entered allmulticast mode [ 15.854372][ T336] veth1: entered promiscuous mode [ 15.945414][ T152] br1: port 3(veth1) entered blocking state [ 15.945839][ T152] br1: port 3(veth1) entered forwarding state [ 16.099103][ T339] br1: port 4(veth2) entered blocking state [ 16.099435][ T339] br1: port 4(veth2) entered disabled state [ 16.099733][ T339] veth2: entered allmulticast mode [ 16.101633][ T339] veth2: entered promiscuous mode [ 16.191357][ T70] br1: port 4(veth2) entered blocking state [ 16.191655][ T70] br1: port 4(veth2) entered forwarding state [ 16.879240][ T349] 8021q: 802.1Q VLAN Support v1.8 [ 17.190881][ T352] br1: entered promiscuous mode [ 17.194256][ T352] br1: left promiscuous mode [ 17.204869][ T352] br1: entered promiscuous mode [ 17.213209][ T352] ip (352) used greatest stack depth: 24144 bytes left [ 18.178123][ T366] ip (366) used greatest stack depth: 23968 bytes left [ 22.359914][ T425] br1: port 1(vx10) entered blocking state [ 22.360206][ T425] br1: port 1(vx10) entered disabled state [ 22.360481][ T425] vx10: entered allmulticast mode [ 22.362366][ T425] vx10: entered promiscuous mode [ 22.363176][ T425] br1: port 1(vx10) entered blocking state [ 22.363423][ T425] br1: port 1(vx10) entered forwarding state [ 22.695201][ T429] br1: port 2(vx20) entered blocking state [ 22.695518][ T429] br1: port 2(vx20) entered disabled state [ 22.695882][ T429] vx20: entered allmulticast mode [ 22.697961][ T429] vx20: entered promiscuous mode [ 22.699345][ T429] br1: port 2(vx20) entered blocking state [ 22.699622][ T429] br1: port 2(vx20) entered forwarding state [ 22.866922][ T431] br1: port 3(w1) entered blocking state [ 22.867189][ T431] br1: port 3(w1) entered disabled state [ 22.867652][ T431] w1: entered allmulticast mode [ 22.869540][ T431] w1: entered promiscuous mode [ 22.943730][ T55] br1: port 3(w1) entered blocking state [ 22.943981][ T55] br1: port 3(w1) entered forwarding state [ 23.147219][ T434] br1: port 4(w3) entered blocking state [ 23.147459][ T434] br1: port 4(w3) entered disabled state [ 23.147698][ T434] w3: entered allmulticast mode [ 23.149612][ T434] w3: entered promiscuous mode [ 23.228848][ T40] br1: port 4(w3) entered blocking state [ 23.229313][ T40] br1: port 4(w3) entered forwarding state [ 23.967735][ T444] br1: entered promiscuous mode [ 23.970654][ T444] br1: left promiscuous mode [ 23.990046][ T444] br1: entered promiscuous mode [ 24.582692][ C2] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 24.585997][ C2] IPv6: vlan10-v: IPv6 duplicate address fe80::200:5eff:fe00:101 used by 00:00:5e:00:01:01 detected! [ 24.646968][ C3] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 24.647986][ C3] IPv6: vlan10-v: IPv6 duplicate address 2001:db8:1::3 used by 00:00:5e:00:01:01 detected! [ 24.710887][ C3] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 24.712410][ C3] IPv6: vlan20-v: IPv6 duplicate address 2001:db8:2::3 used by 00:00:5e:00:01:01 detected! [ 24.902499][ C1] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 24.902509][ C3] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 24.903580][ C1] IPv6: vlan20-v: IPv6 duplicate address fe80::200:5eff:fe00:101 used by 00:00:5e:00:01:01 detected! [ 25.222974][ C0] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 48.080284][ T11] w3: left allmulticast mode [ 48.080585][ T11] w3: left promiscuous mode [ 48.080952][ T11] br1: port 4(w3) entered disabled state [ 48.083847][ T11] w1: left allmulticast mode [ 48.084077][ T11] w1: left promiscuous mode [ 48.084394][ T11] br1: port 3(w1) entered disabled state [ 48.086337][ T11] vx20: left allmulticast mode [ 48.086537][ T11] vx20: left promiscuous mode [ 48.086840][ T11] br1: port 2(vx20) entered disabled state [ 48.088890][ T11] vx10: left allmulticast mode [ 48.089142][ T11] vx10: left promiscuous mode [ 48.089439][ T11] br1: port 1(vx10) entered disabled state [ 48.108365][ T11] [ 48.108465][ T11] ============================================ [ 48.108651][ T11] WARNING: possible recursive locking detected [ 48.108829][ T11] 6.13.0-rc5-virtme #1 Not tainted [ 48.108971][ T11] -------------------------------------------- [ 48.109144][ T11] kworker/u16:0/11 is trying to acquire lock: [ 48.109310][ T11] ffffffff921d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 48.109592][ T11] [ 48.109592][ T11] but task is already holding lock: [ 48.109796][ T11] ffffffff921d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 48.110080][ T11] [ 48.110080][ T11] other info that might help us debug this: [ 48.110283][ T11] Possible unsafe locking scenario: [ 48.110283][ T11] [ 48.110484][ T11] CPU0 [ 48.110588][ T11] ---- [ 48.110689][ T11] lock((netdev_chain).rwsem); [ 48.110832][ T11] lock((netdev_chain).rwsem); [ 48.110970][ T11] [ 48.110970][ T11] *** DEADLOCK *** [ 48.110970][ T11] [ 48.111174][ T11] May be due to missing lock nesting notation [ 48.111174][ T11] [ 48.111374][ T11] 5 locks held by kworker/u16:0/11: [ 48.111511][ T11] #0: ffff8880010ad948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0 [ 48.111793][ T11] #1: ffffc900000b7da0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0 [ 48.112042][ T11] #2: ffffffff921cc090 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbc/0xa50 [ 48.112287][ T11] #3: ffffffff921e7a48 (rtnl_mutex){+.+.}-{4:4}, at: cleanup_net+0x45e/0xa50 [ 48.112533][ T11] #4: ffffffff921d6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 48.112810][ T11] [ 48.112810][ T11] stack backtrace: [ 48.112979][ T11] CPU: 0 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.13.0-rc5-virtme #1 [ 48.113223][ T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 48.113395][ T11] Workqueue: netns cleanup_net [ 48.113542][ T11] Call Trace: [ 48.113652][ T11] [ 48.113726][ T11] dump_stack_lvl+0x82/0xd0 [ 48.113872][ T11] print_deadlock_bug+0x40a/0x650 [ 48.114013][ T11] validate_chain+0x5bf/0xae0 [ 48.114153][ T11] ? __pfx_validate_chain+0x10/0x10 [ 48.114297][ T11] ? hlock_class+0x4e/0x130 [ 48.114437][ T11] ? mark_lock+0x38/0x3e0 [ 48.114545][ T11] __lock_acquire+0xb9a/0x1680 [ 48.114687][ T11] ? spin_bug+0x1b1/0x1d0 [ 48.114796][ T11] ? debug_object_assert_init+0x2a9/0x370 [ 48.114957][ T11] lock_acquire.part.0+0xeb/0x330 [ 48.115097][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 48.115275][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 48.115416][ T11] ? trace_lock_acquire+0x14c/0x1f0 [ 48.115559][ T11] ? lock_acquire+0x32/0xc0 [ 48.115699][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 48.115875][ T11] down_read+0x9f/0x340 [ 48.115982][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 48.116155][ T11] ? __pfx_down_read+0x10/0x10 [ 48.116301][ T11] blocking_notifier_call_chain+0x50/0x90 [ 48.116441][ T11] __dev_close_many+0xdf/0x2d0 [ 48.116587][ T11] ? __pfx___dev_close_many+0x10/0x10 [ 48.116730][ T11] dev_close_many+0x202/0x650 [ 48.116869][ T11] ? __lock_release+0x103/0x460 [ 48.117015][ T11] ? __pfx_dev_close_many+0x10/0x10 [ 48.117153][ T11] ? __pfx___lock_release+0x10/0x10 [ 48.117294][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 48.117435][ T11] vlan_device_event+0x143b/0x2130 [8021q] [ 48.117619][ T11] ? net_generic+0xbb/0x1f0 [vxlan] [ 48.117775][ T11] ? __pfx_vlan_device_event+0x10/0x10 [8021q] [ 48.117953][ T11] ? __pfx_vxlan_netdevice_event+0x10/0x10 [vxlan] [ 48.118138][ T11] ? packet_notifier+0x3b0/0x810 [ 48.118285][ T11] notifier_call_chain+0xcd/0x150 [ 48.118429][ T11] blocking_notifier_call_chain+0x66/0x90 [ 48.118569][ T11] dev_close_many+0x2d8/0x650 [ 48.118728][ T11] ? __lock_release+0x103/0x460 [ 48.118869][ T11] ? __virt_addr_valid+0x22b/0x430 [ 48.119012][ T11] ? __pfx_dev_close_many+0x10/0x10 [ 48.119155][ T11] unregister_netdevice_many_notify+0x8e5/0x1580 [ 48.119346][ T11] ? mark_held_locks+0x9e/0xe0 [ 48.119491][ T11] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 48.119678][ T11] ? mutex_is_locked+0x1c/0x60 [ 48.119818][ T11] ? rtnl_is_locked+0x15/0x20 [ 48.120040][ T11] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 48.120224][ T11] ? mutex_is_locked+0x1c/0x60 [ 48.120364][ T11] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 48.120561][ T11] cleanup_net+0x4cf/0xa50 [ 48.120702][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 48.120857][ T11] ? __pfx_cleanup_net+0x10/0x10 [ 48.121006][ T11] ? trace_lock_acquire+0x14c/0x1f0 [ 48.121158][ T11] ? lock_acquire+0x32/0xc0 [ 48.121308][ T11] ? process_one_work+0xe0b/0x16d0 [ 48.121538][ T11] process_one_work+0xe55/0x16d0 [ 48.121684][ T11] ? __pfx___lock_release+0x10/0x10 [ 48.121840][ T11] ? __pfx_process_one_work+0x10/0x10 [ 48.121986][ T11] ? assign_work+0x16c/0x240 [ 48.122221][ T11] worker_thread+0x58c/0xce0 [ 48.122362][ T11] ? __pfx_worker_thread+0x10/0x10 [ 48.122503][ T11] kthread+0x28a/0x350 [ 48.122611][ T11] ? __pfx_kthread+0x10/0x10 [ 48.122756][ T11] ret_from_fork+0x31/0x70 [ 48.122901][ T11] ? __pfx_kthread+0x10/0x10 [ 48.123043][ T11] ret_from_fork_asm+0x1a/0x30 [ 48.123191][ T11] [ 49.646328][ T667] br1: left promiscuous mode [ 50.134280][ T674] br1: port 4(veth2) entered disabled state [ 50.186322][ T675] veth2: left allmulticast mode [ 50.186559][ T675] veth2: left promiscuous mode [ 50.186845][ T675] br1: port 4(veth2) entered disabled state [ 50.294919][ T677] br1: port 3(veth1) entered disabled state [ 50.359910][ T678] veth1: left allmulticast mode [ 50.360231][ T678] veth1: left promiscuous mode [ 50.360645][ T678] br1: port 3(veth1) entered disabled state [ 50.472382][ T680] vx20: left allmulticast mode [ 50.472617][ T680] vx20: left promiscuous mode [ 50.472902][ T680] br1: port 2(vx20) entered disabled state [ 50.735382][ T684] vx10: left allmulticast mode [ 50.735575][ T684] vx10: left promiscuous mode [ 50.735838][ T684] br1: port 1(vx10) entered disabled state