[ 160.090940][ T1127] br1: port 1(vx10) entered blocking state [ 160.091243][ T1127] br1: port 1(vx10) entered disabled state [ 160.091761][ T1127] vx10: entered allmulticast mode [ 160.093779][ T1127] vx10: entered promiscuous mode [ 160.094606][ T1127] br1: port 1(vx10) entered blocking state [ 160.094890][ T1127] br1: port 1(vx10) entered forwarding state [ 160.457331][ T1132] br1: port 2(vx20) entered blocking state [ 160.458375][ T1132] br1: port 2(vx20) entered disabled state [ 160.458668][ T1132] vx20: entered allmulticast mode [ 160.460647][ T1132] vx20: entered promiscuous mode [ 160.461242][ T1132] br1: port 2(vx20) entered blocking state [ 160.461533][ T1132] br1: port 2(vx20) entered forwarding state [ 160.632679][ T1134] br1: port 3(veth1) entered blocking state [ 160.632987][ T1134] br1: port 3(veth1) entered disabled state [ 160.633288][ T1134] veth1: entered allmulticast mode [ 160.635870][ T1134] veth1: entered promiscuous mode [ 160.718787][ T39] br1: port 3(veth1) entered blocking state [ 160.719128][ T39] br1: port 3(veth1) entered forwarding state [ 160.881301][ T1137] br1: port 4(veth2) entered blocking state [ 160.881712][ T1137] br1: port 4(veth2) entered disabled state [ 160.882001][ T1137] veth2: entered allmulticast mode [ 160.884284][ T1137] veth2: entered promiscuous mode [ 160.957072][ T39] br1: port 4(veth2) entered blocking state [ 160.957367][ T39] br1: port 4(veth2) entered forwarding state [ 161.657749][ T1147] 8021q: 802.1Q VLAN Support v1.8 [ 161.935110][ T1150] br1: entered promiscuous mode [ 161.937852][ T1150] br1: left promiscuous mode [ 161.947088][ T1150] br1: entered promiscuous mode [ 167.683054][ T1235] br1: port 1(vx10) entered blocking state [ 167.683447][ T1235] br1: port 1(vx10) entered disabled state [ 167.683814][ T1235] vx10: entered allmulticast mode [ 167.686864][ T1235] vx10: entered promiscuous mode [ 167.688260][ T1235] br1: port 1(vx10) entered blocking state [ 167.688708][ T1235] br1: port 1(vx10) entered forwarding state [ 168.042464][ T1239] br1: port 2(vx20) entered blocking state [ 168.042746][ T1239] br1: port 2(vx20) entered disabled state [ 168.043027][ T1239] vx20: entered allmulticast mode [ 168.045003][ T1239] vx20: entered promiscuous mode [ 168.045777][ T1239] br1: port 2(vx20) entered blocking state [ 168.046028][ T1239] br1: port 2(vx20) entered forwarding state [ 168.210458][ T1241] br1: port 3(w1) entered blocking state [ 168.210736][ T1241] br1: port 3(w1) entered disabled state [ 168.210995][ T1241] w1: entered allmulticast mode [ 168.213227][ T1241] w1: entered promiscuous mode [ 168.315971][ T37] br1: port 3(w1) entered blocking state [ 168.316242][ T37] br1: port 3(w1) entered forwarding state [ 168.506990][ T1244] br1: port 4(w3) entered blocking state [ 168.507219][ T1244] br1: port 4(w3) entered disabled state [ 168.507477][ T1244] w3: entered allmulticast mode [ 168.509430][ T1244] w3: entered promiscuous mode [ 168.589194][ T37] br1: port 4(w3) entered blocking state [ 168.589462][ T37] br1: port 4(w3) entered forwarding state [ 169.341388][ T1254] br1: entered promiscuous mode [ 169.344039][ T1254] br1: left promiscuous mode [ 169.357099][ T1254] br1: entered promiscuous mode [ 170.312061][ C0] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 170.375892][ C1] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 170.377676][ C1] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 170.378259][ C1] IPv6: vlan20-v: IPv6 duplicate address fe80::200:5eff:fe00:101 used by 00:00:5e:00:01:01 detected! [ 170.440163][ C3] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 170.441242][ C3] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 170.577994][ C3] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 171.399850][ C3] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 174.472390][ C0] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 182.216203][ C2] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 198.089055][ C3] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 199.582714][ T66] w3: left allmulticast mode [ 199.583194][ T66] w3: left promiscuous mode [ 199.583779][ T66] br1: port 4(w3) entered disabled state [ 199.587618][ T66] w1: left allmulticast mode [ 199.587921][ T66] w1: left promiscuous mode [ 199.588915][ T66] br1: port 3(w1) entered disabled state [ 199.592397][ T66] vx20: left allmulticast mode [ 199.592707][ T66] vx20: left promiscuous mode [ 199.593320][ T66] br1: port 2(vx20) entered disabled state [ 199.597985][ T66] vx10: left allmulticast mode [ 199.598293][ T66] vx10: left promiscuous mode [ 199.600589][ T66] br1: port 1(vx10) entered disabled state [ 199.649140][ T66] [ 199.649307][ T66] ============================================ [ 199.649596][ T66] WARNING: possible recursive locking detected [ 199.649886][ T66] 6.13.0-rc5-virtme #1 Not tainted [ 199.650109][ T66] -------------------------------------------- [ 199.650388][ T66] kworker/u16:1/66 is trying to acquire lock: [ 199.650671][ T66] ffffffffa4dd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 199.651135][ T66] [ 199.651135][ T66] but task is already holding lock: [ 199.651467][ T66] ffffffffa4dd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 199.651915][ T66] [ 199.651915][ T66] other info that might help us debug this: [ 199.652259][ T66] Possible unsafe locking scenario: [ 199.652259][ T66] [ 199.652615][ T66] CPU0 [ 199.652795][ T66] ---- [ 199.652975][ T66] lock((netdev_chain).rwsem); [ 199.653216][ T66] lock((netdev_chain).rwsem); [ 199.653454][ T66] [ 199.653454][ T66] *** DEADLOCK *** [ 199.653454][ T66] [ 199.653783][ T66] May be due to missing lock nesting notation [ 199.653783][ T66] [ 199.654118][ T66] 5 locks held by kworker/u16:1/66: [ 199.654365][ T66] #0: ffff8880010ad948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0 [ 199.654856][ T66] #1: ffffc90000477da0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0 [ 199.655278][ T66] #2: ffffffffa4dcc090 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbc/0xa50 [ 199.655696][ T66] #3: ffffffffa4de7a48 (rtnl_mutex){+.+.}-{4:4}, at: cleanup_net+0x45e/0xa50 [ 199.656093][ T66] #4: ffffffffa4dd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 199.656544][ T66] [ 199.656544][ T66] stack backtrace: [ 199.656809][ T66] CPU: 3 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.13.0-rc5-virtme #1 [ 199.657212][ T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 199.657496][ T66] Workqueue: netns cleanup_net [ 199.657747][ T66] Call Trace: [ 199.657931][ T66] [ 199.658060][ T66] dump_stack_lvl+0x82/0xd0 [ 199.658299][ T66] print_deadlock_bug+0x40a/0x650 [ 199.658541][ T66] validate_chain+0x5bf/0xae0 [ 199.658771][ T66] ? __pfx_validate_chain+0x10/0x10 [ 199.659011][ T66] ? hlock_class+0x4e/0x130 [ 199.659256][ T66] ? mark_lock+0x38/0x3e0 [ 199.659442][ T66] __lock_acquire+0xb9a/0x1680 [ 199.659689][ T66] ? spin_bug+0x1b1/0x1d0 [ 199.659878][ T66] ? debug_object_assert_init+0x2a9/0x370 [ 199.660125][ T66] lock_acquire.part.0+0xeb/0x330 [ 199.660365][ T66] ? blocking_notifier_call_chain+0x50/0x90 [ 199.660653][ T66] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 199.660866][ T66] ? trace_lock_acquire+0x14c/0x1f0 [ 199.661118][ T66] ? lock_acquire+0x32/0xc0 [ 199.661352][ T66] ? blocking_notifier_call_chain+0x50/0x90 [ 199.661651][ T66] down_read+0x9f/0x340 [ 199.661841][ T66] ? blocking_notifier_call_chain+0x50/0x90 [ 199.662148][ T66] ? __pfx_down_read+0x10/0x10 [ 199.662396][ T66] blocking_notifier_call_chain+0x50/0x90 [ 199.662653][ T66] __dev_close_many+0xdf/0x2d0 [ 199.662892][ T66] ? __pfx___dev_close_many+0x10/0x10 [ 199.663137][ T66] dev_close_many+0x202/0x650 [ 199.663379][ T66] ? __lock_release+0x103/0x460 [ 199.663625][ T66] ? __pfx_dev_close_many+0x10/0x10 [ 199.663862][ T66] ? __pfx___lock_release+0x10/0x10 [ 199.664109][ T66] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 199.664361][ T66] vlan_device_event+0x143b/0x2130 [8021q] [ 199.664592][ T66] ? net_generic+0xbb/0x1f0 [vxlan] [ 199.664773][ T66] ? __pfx_vlan_device_event+0x10/0x10 [8021q] [ 199.665069][ T66] ? __pfx_vxlan_netdevice_event+0x10/0x10 [vxlan] [ 199.665388][ T66] ? packet_notifier+0x3b0/0x810 [ 199.665644][ T66] notifier_call_chain+0xcd/0x150 [ 199.665895][ T66] blocking_notifier_call_chain+0x66/0x90 [ 199.666105][ T66] dev_close_many+0x2d8/0x650 [ 199.666327][ T66] ? __lock_release+0x103/0x460 [ 199.666547][ T66] ? __virt_addr_valid+0x22b/0x430 [ 199.666783][ T66] ? __pfx_dev_close_many+0x10/0x10 [ 199.667018][ T66] unregister_netdevice_many_notify+0x8e5/0x1580 [ 199.667319][ T66] ? mark_held_locks+0x9e/0xe0 [ 199.667557][ T66] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 199.667857][ T66] ? mutex_is_locked+0x1c/0x60 [ 199.668097][ T66] ? rtnl_is_locked+0x15/0x20 [ 199.668318][ T66] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 199.668619][ T66] ? mutex_is_locked+0x1c/0x60 [ 199.668865][ T66] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 199.669173][ T66] cleanup_net+0x4cf/0xa50 [ 199.669411][ T66] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 199.669662][ T66] ? __pfx_cleanup_net+0x10/0x10 [ 199.669900][ T66] ? trace_lock_acquire+0x14c/0x1f0 [ 199.670142][ T66] ? lock_acquire+0x32/0xc0 [ 199.670381][ T66] ? process_one_work+0xe0b/0x16d0 [ 199.670621][ T66] process_one_work+0xe55/0x16d0 [ 199.670869][ T66] ? __pfx___lock_release+0x10/0x10 [ 199.671111][ T66] ? __pfx_process_one_work+0x10/0x10 [ 199.671365][ T66] ? assign_work+0x16c/0x240 [ 199.671619][ T66] worker_thread+0x58c/0xce0 [ 199.671863][ T66] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 199.672181][ T66] ? __pfx_worker_thread+0x10/0x10 [ 199.672430][ T66] ? __pfx_worker_thread+0x10/0x10 [ 199.672594][ T66] kthread+0x28a/0x350 [ 199.672717][ T66] ? __pfx_kthread+0x10/0x10 [ 199.672925][ T66] ret_from_fork+0x31/0x70 [ 199.673164][ T66] ? __pfx_kthread+0x10/0x10 [ 199.673406][ T66] ret_from_fork_asm+0x1a/0x30 [ 199.673656][ T66] [ 201.447743][ T1605] br1: left promiscuous mode [ 201.983099][ T1611] br1: port 4(veth2) entered disabled state [ 202.034969][ T1612] veth2: left allmulticast mode [ 202.035197][ T1612] veth2: left promiscuous mode [ 202.035488][ T1612] br1: port 4(veth2) entered disabled state [ 202.177268][ T1614] br1: port 3(veth1) entered disabled state [ 202.243607][ T1615] veth1: left allmulticast mode [ 202.243821][ T1615] veth1: left promiscuous mode [ 202.244104][ T1615] br1: port 3(veth1) entered disabled state [ 202.360641][ T1617] vx20: left allmulticast mode [ 202.360837][ T1617] vx20: left promiscuous mode [ 202.361097][ T1617] br1: port 2(vx20) entered disabled state [ 202.638266][ T1621] vx10: left allmulticast mode [ 202.639103][ T1621] vx10: left promiscuous mode [ 202.639560][ T1621] br1: port 1(vx10) entered disabled state