[ 11.126118][ T249] ip (249) used greatest stack depth: 24072 bytes left [ 16.026019][ T328] br1: port 1(vx10) entered blocking state [ 16.026468][ T328] br1: port 1(vx10) entered disabled state [ 16.026865][ T328] vx10: entered allmulticast mode [ 16.029235][ T328] vx10: entered promiscuous mode [ 16.030286][ T328] br1: port 1(vx10) entered blocking state [ 16.030694][ T328] br1: port 1(vx10) entered forwarding state [ 16.408934][ T333] br1: port 2(vx20) entered blocking state [ 16.409277][ T333] br1: port 2(vx20) entered disabled state [ 16.409568][ T333] vx20: entered allmulticast mode [ 16.411595][ T333] vx20: entered promiscuous mode [ 16.412341][ T333] br1: port 2(vx20) entered blocking state [ 16.412604][ T333] br1: port 2(vx20) entered forwarding state [ 16.572197][ T335] br1: port 3(veth1) entered blocking state [ 16.572577][ T335] br1: port 3(veth1) entered disabled state [ 16.572865][ T335] veth1: entered allmulticast mode [ 16.575700][ T335] veth1: entered promiscuous mode [ 16.665485][ T37] br1: port 3(veth1) entered blocking state [ 16.665925][ T37] br1: port 3(veth1) entered forwarding state [ 16.832199][ T338] br1: port 4(veth2) entered blocking state [ 16.832535][ T338] br1: port 4(veth2) entered disabled state [ 16.832837][ T338] veth2: entered allmulticast mode [ 16.835011][ T338] veth2: entered promiscuous mode [ 16.917362][ T40] br1: port 4(veth2) entered blocking state [ 16.917875][ T40] br1: port 4(veth2) entered forwarding state [ 17.617180][ T348] 8021q: 802.1Q VLAN Support v1.8 [ 17.662402][ T347] ip (347) used greatest stack depth: 23656 bytes left [ 17.966660][ T351] br1: entered promiscuous mode [ 17.971108][ T351] br1: left promiscuous mode [ 17.985112][ T351] br1: entered promiscuous mode [ 23.238679][ T423] br1: port 1(vx10) entered blocking state [ 23.239012][ T423] br1: port 1(vx10) entered disabled state [ 23.239295][ T423] vx10: entered allmulticast mode [ 23.241243][ T423] vx10: entered promiscuous mode [ 23.242285][ T423] br1: port 1(vx10) entered blocking state [ 23.242601][ T423] br1: port 1(vx10) entered forwarding state [ 23.559356][ T427] br1: port 2(vx20) entered blocking state [ 23.559728][ T427] br1: port 2(vx20) entered disabled state [ 23.560032][ T427] vx20: entered allmulticast mode [ 23.563159][ T427] vx20: entered promiscuous mode [ 23.563761][ T427] br1: port 2(vx20) entered blocking state [ 23.564042][ T427] br1: port 2(vx20) entered forwarding state [ 23.719589][ T429] br1: port 3(w1) entered blocking state [ 23.719869][ T429] br1: port 3(w1) entered disabled state [ 23.720115][ T429] w1: entered allmulticast mode [ 23.722046][ T429] w1: entered promiscuous mode [ 23.815934][ T46] br1: port 3(w1) entered blocking state [ 23.816216][ T46] br1: port 3(w1) entered forwarding state [ 24.007849][ T432] br1: port 4(w3) entered blocking state [ 24.008183][ T432] br1: port 4(w3) entered disabled state [ 24.009442][ T432] w3: entered allmulticast mode [ 24.011451][ T432] w3: entered promiscuous mode [ 24.127805][ T46] br1: port 4(w3) entered blocking state [ 24.128189][ T46] br1: port 4(w3) entered forwarding state [ 24.950820][ T442] br1: entered promiscuous mode [ 24.954128][ T442] br1: left promiscuous mode [ 24.978085][ T442] br1: entered promiscuous mode [ 25.640117][ C1] IPv6: vlan20-v: IPv6 duplicate address 2001:db8:2::3 used by 00:00:5e:00:01:01 detected! [ 25.734175][ C1] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 25.799666][ C1] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 25.800870][ C1] IPv6: vlan10-v: IPv6 duplicate address 2001:db8:1::3 used by 00:00:5e:00:01:01 detected! [ 26.246146][ C1] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 26.247124][ C1] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 26.413968][ C1] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 26.437873][ C1] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 26.637613][ C1] br1: received packet on vx20 with own address as source address (addr:00:00:5e:00:01:01, vlan:20) [ 26.637860][ C2] br1: received packet on vx10 with own address as source address (addr:00:00:5e:00:01:01, vlan:10) [ 49.607894][ T11] w3: left allmulticast mode [ 49.608234][ T11] w3: left promiscuous mode [ 49.608616][ T11] br1: port 4(w3) entered disabled state [ 49.611591][ T11] w1: left allmulticast mode [ 49.611907][ T11] w1: left promiscuous mode [ 49.612223][ T11] br1: port 3(w1) entered disabled state [ 49.613955][ T11] vx20: left allmulticast mode [ 49.614168][ T11] vx20: left promiscuous mode [ 49.615890][ T11] br1: port 2(vx20) entered disabled state [ 49.617797][ T11] vx10: left allmulticast mode [ 49.618033][ T11] vx10: left promiscuous mode [ 49.618350][ T11] br1: port 1(vx10) entered disabled state [ 49.639163][ T11] [ 49.639282][ T11] ============================================ [ 49.639472][ T11] WARNING: possible recursive locking detected [ 49.639678][ T11] 6.13.0-rc5-virtme #1 Not tainted [ 49.639822][ T11] -------------------------------------------- [ 49.640044][ T11] kworker/u16:0/11 is trying to acquire lock: [ 49.640311][ T11] ffffffff96bd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 49.640672][ T11] [ 49.640672][ T11] but task is already holding lock: [ 49.640884][ T11] ffffffff96bd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 49.641237][ T11] [ 49.641237][ T11] other info that might help us debug this: [ 49.641496][ T11] Possible unsafe locking scenario: [ 49.641496][ T11] [ 49.641770][ T11] CPU0 [ 49.641934][ T11] ---- [ 49.642093][ T11] lock((netdev_chain).rwsem); [ 49.642315][ T11] lock((netdev_chain).rwsem); [ 49.642543][ T11] [ 49.642543][ T11] *** DEADLOCK *** [ 49.642543][ T11] [ 49.642860][ T11] May be due to missing lock nesting notation [ 49.642860][ T11] [ 49.643177][ T11] 5 locks held by kworker/u16:0/11: [ 49.643397][ T11] #0: ffff8880010ad948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0 [ 49.643852][ T11] #1: ffffc900000b7da0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0 [ 49.644249][ T11] #2: ffffffff96bcc090 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbc/0xa50 [ 49.644649][ T11] #3: ffffffff96be7a48 (rtnl_mutex){+.+.}-{4:4}, at: cleanup_net+0x45e/0xa50 [ 49.645048][ T11] #4: ffffffff96bd6630 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 49.645499][ T11] [ 49.645499][ T11] stack backtrace: [ 49.645783][ T11] CPU: 0 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.13.0-rc5-virtme #1 [ 49.646166][ T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 49.646450][ T11] Workqueue: netns cleanup_net [ 49.646684][ T11] Call Trace: [ 49.646854][ T11] [ 49.646977][ T11] dump_stack_lvl+0x82/0xd0 [ 49.647209][ T11] print_deadlock_bug+0x40a/0x650 [ 49.647432][ T11] validate_chain+0x5bf/0xae0 [ 49.647660][ T11] ? __pfx_validate_chain+0x10/0x10 [ 49.647895][ T11] ? hlock_class+0x4e/0x130 [ 49.648125][ T11] ? mark_lock+0x38/0x3e0 [ 49.648300][ T11] __lock_acquire+0xb9a/0x1680 [ 49.648521][ T11] ? spin_bug+0x1b1/0x1d0 [ 49.648702][ T11] ? debug_object_assert_init+0x2a9/0x370 [ 49.648927][ T11] lock_acquire.part.0+0xeb/0x330 [ 49.649155][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 49.649434][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 49.649674][ T11] ? trace_lock_acquire+0x14c/0x1f0 [ 49.649898][ T11] ? lock_acquire+0x32/0xc0 [ 49.650127][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 49.650411][ T11] down_read+0x9f/0x340 [ 49.650530][ T11] ? blocking_notifier_call_chain+0x50/0x90 [ 49.650709][ T11] ? __pfx_down_read+0x10/0x10 [ 49.650853][ T11] blocking_notifier_call_chain+0x50/0x90 [ 49.651002][ T11] __dev_close_many+0xdf/0x2d0 [ 49.651151][ T11] ? __pfx___dev_close_many+0x10/0x10 [ 49.651332][ T11] dev_close_many+0x202/0x650 [ 49.651514][ T11] ? __lock_release+0x103/0x460 [ 49.651699][ T11] ? __pfx_dev_close_many+0x10/0x10 [ 49.651867][ T11] ? __pfx___lock_release+0x10/0x10 [ 49.652049][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 49.652256][ T11] vlan_device_event+0x143b/0x2130 [8021q] [ 49.652544][ T11] ? net_generic+0xbb/0x1f0 [vxlan] [ 49.652797][ T11] ? __pfx_vlan_device_event+0x10/0x10 [8021q] [ 49.653006][ T11] ? __pfx_vxlan_netdevice_event+0x10/0x10 [vxlan] [ 49.653269][ T11] ? packet_notifier+0x3b0/0x810 [ 49.653423][ T11] notifier_call_chain+0xcd/0x150 [ 49.653571][ T11] blocking_notifier_call_chain+0x66/0x90 [ 49.653752][ T11] dev_close_many+0x2d8/0x650 [ 49.653895][ T11] ? __lock_release+0x103/0x460 [ 49.654041][ T11] ? __virt_addr_valid+0x22b/0x430 [ 49.654188][ T11] ? __pfx_dev_close_many+0x10/0x10 [ 49.654397][ T11] unregister_netdevice_many_notify+0x8e5/0x1580 [ 49.654577][ T11] ? mark_held_locks+0x9e/0xe0 [ 49.654723][ T11] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 49.654900][ T11] ? mutex_is_locked+0x1c/0x60 [ 49.655047][ T11] ? rtnl_is_locked+0x15/0x20 [ 49.655191][ T11] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 49.655428][ T11] ? mutex_is_locked+0x1c/0x60 [ 49.655696][ T11] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 49.655877][ T11] cleanup_net+0x4cf/0xa50 [ 49.656027][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 49.656239][ T11] ? __pfx_cleanup_net+0x10/0x10 [ 49.656434][ T11] ? trace_lock_acquire+0x14c/0x1f0 [ 49.656725][ T11] ? lock_acquire+0x32/0xc0 [ 49.656875][ T11] ? process_one_work+0xe0b/0x16d0 [ 49.657174][ T11] process_one_work+0xe55/0x16d0 [ 49.657382][ T11] ? __pfx___lock_release+0x10/0x10 [ 49.657631][ T11] ? __pfx_process_one_work+0x10/0x10 [ 49.657773][ T11] ? assign_work+0x16c/0x240 [ 49.657979][ T11] worker_thread+0x58c/0xce0 [ 49.658123][ T11] ? __pfx_worker_thread+0x10/0x10 [ 49.658389][ T11] kthread+0x28a/0x350 [ 49.658501][ T11] ? __pfx_kthread+0x10/0x10 [ 49.658676][ T11] ret_from_fork+0x31/0x70 [ 49.658853][ T11] ? __pfx_kthread+0x10/0x10 [ 49.659037][ T11] ret_from_fork_asm+0x1a/0x30 [ 49.659472][ T11] [ 51.253017][ T665] br1: left promiscuous mode [ 51.743209][ T671] br1: port 4(veth2) entered disabled state [ 51.818752][ T672] veth2: left allmulticast mode [ 51.818956][ T672] veth2: left promiscuous mode [ 51.819263][ T672] br1: port 4(veth2) entered disabled state [ 51.936714][ T674] br1: port 3(veth1) entered disabled state [ 51.989896][ T675] veth1: left allmulticast mode [ 51.990113][ T675] veth1: left promiscuous mode [ 51.990402][ T675] br1: port 3(veth1) entered disabled state [ 52.111497][ T677] vx20: left allmulticast mode [ 52.111720][ T677] vx20: left promiscuous mode [ 52.111989][ T677] br1: port 2(vx20) entered disabled state [ 52.363617][ T681] vx10: left allmulticast mode [ 52.363804][ T681] vx10: left promiscuous mode [ 52.364067][ T681] br1: port 1(vx10) entered disabled state