[ 13.833717][ T299] eth0: renamed from r1h1 [ 14.035974][ T301] eth0: renamed from r2h1 [ 14.299696][ T304] eth2: renamed from r2h2 [ 14.571510][ T307] eth1: renamed from r2r1 [ 14.980251][ T312] br0: port 1(eth0) entered blocking state [ 14.980758][ T312] br0: port 1(eth0) entered disabled state [ 14.981021][ T312] eth0: entered allmulticast mode [ 14.982308][ T312] eth0: entered promiscuous mode [ 14.985206][ T39] br0: port 1(eth0) entered blocking state [ 14.985626][ T39] br0: port 1(eth0) entered forwarding state [ 15.076576][ T313] br0: port 2(eth1) entered blocking state [ 15.076910][ T313] br0: port 2(eth1) entered disabled state [ 15.077155][ T313] eth1: entered allmulticast mode [ 15.078672][ T313] eth1: entered promiscuous mode [ 15.080513][ T37] br0: port 2(eth1) entered blocking state [ 15.080764][ T37] br0: port 2(eth1) entered forwarding state [ 31.661952][ T66] eth1: left allmulticast mode [ 31.662291][ T66] eth1: left promiscuous mode [ 31.662720][ T66] br0: port 2(eth1) entered disabled state [ 31.666303][ T66] eth0: left allmulticast mode [ 31.666564][ T66] eth0: left promiscuous mode [ 31.666853][ T66] br0: port 1(eth0) entered disabled state [ 37.271620][ T515] eth0: renamed from r1h1 [ 37.461205][ T517] eth0: renamed from r2h1 [ 37.724637][ T520] eth2: renamed from r2h2 [ 37.988616][ T523] eth1: renamed from r2r1 [ 39.194889][ T538] br0: port 1(eth0) entered blocking state [ 39.195152][ T538] br0: port 1(eth0) entered disabled state [ 39.195771][ T538] eth0: entered allmulticast mode [ 39.196954][ T538] eth0: entered promiscuous mode [ 39.198955][ T40] br0: port 1(eth0) entered blocking state [ 39.199291][ T40] br0: port 1(eth0) entered forwarding state [ 39.281584][ T539] br0: port 2(eth1) entered blocking state [ 39.281952][ T539] br0: port 2(eth1) entered disabled state [ 39.282235][ T539] eth1: entered allmulticast mode [ 39.283491][ T539] eth1: entered promiscuous mode [ 39.284905][ T39] br0: port 2(eth1) entered blocking state [ 39.285138][ T39] br0: port 2(eth1) entered forwarding state [ 55.989799][ T66] eth1: left allmulticast mode [ 55.990084][ T66] eth1: left promiscuous mode [ 55.990401][ T66] br0: port 2(eth1) entered disabled state [ 55.992478][ T66] eth0: left allmulticast mode [ 55.992661][ T66] eth0: left promiscuous mode [ 55.992940][ T66] br0: port 1(eth0) entered disabled state [ 56.025636][ T66] [ 56.025780][ T66] ============================================ [ 56.025973][ T66] WARNING: possible recursive locking detected [ 56.026161][ T66] 6.13.0-rc5-virtme #1 Not tainted [ 56.026310][ T66] -------------------------------------------- [ 56.026493][ T66] kworker/u16:1/66 is trying to acquire lock: [ 56.026685][ T66] ffffffffb61f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 56.027001][ T66] [ 56.027001][ T66] but task is already holding lock: [ 56.027223][ T66] ffffffffb61f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 56.027527][ T66] [ 56.027527][ T66] other info that might help us debug this: [ 56.027749][ T66] Possible unsafe locking scenario: [ 56.027749][ T66] [ 56.027970][ T66] CPU0 [ 56.028086][ T66] ---- [ 56.028196][ T66] lock((netdev_chain).rwsem); [ 56.028347][ T66] lock((netdev_chain).rwsem); [ 56.028497][ T66] [ 56.028497][ T66] *** DEADLOCK *** [ 56.028497][ T66] [ 56.028722][ T66] May be due to missing lock nesting notation [ 56.028722][ T66] [ 56.028943][ T66] 5 locks held by kworker/u16:1/66: [ 56.029094][ T66] #0: ffff8880010b5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0 [ 56.029404][ T66] #1: ffffc90000477da0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0 [ 56.029679][ T66] #2: ffffffffb61ec4d0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbc/0xba0 [ 56.029954][ T66] #3: ffffffffb6207e88 (rtnl_mutex){+.+.}-{4:4}, at: cleanup_net+0x45e/0xba0 [ 56.030226][ T66] #4: ffffffffb61f6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 56.030533][ T66] [ 56.030533][ T66] stack backtrace: [ 56.030723][ T66] CPU: 2 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.13.0-rc5-virtme #1 [ 56.031004][ T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 56.031191][ T66] Workqueue: netns cleanup_net [ 56.031350][ T66] Call Trace: [ 56.031465][ T66] [ 56.031545][ T66] dump_stack_lvl+0x82/0xd0 [ 56.031705][ T66] print_deadlock_bug+0x40a/0x650 [ 56.031861][ T66] validate_chain+0x5bf/0xae0 [ 56.032004][ T66] ? __pfx_validate_chain+0x10/0x10 [ 56.032159][ T66] ? hlock_class+0x4e/0x130 [ 56.032309][ T66] ? mark_lock+0x38/0x3e0 [ 56.032424][ T66] __lock_acquire+0xb9a/0x1680 [ 56.032576][ T66] lock_acquire.part.0+0xeb/0x330 [ 56.032726][ T66] ? blocking_notifier_call_chain+0x50/0x90 [ 56.032918][ T66] ? __lock_acquire+0xb9a/0x1680 [ 56.033070][ T66] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 56.033216][ T66] ? trace_lock_acquire+0x14c/0x1f0 [ 56.033365][ T66] ? lock_acquire+0x32/0xc0 [ 56.033512][ T66] ? blocking_notifier_call_chain+0x50/0x90 [ 56.033697][ T66] down_read+0x9f/0x340 [ 56.033814][ T66] ? blocking_notifier_call_chain+0x50/0x90 [ 56.033997][ T66] ? __pfx_down_read+0x10/0x10 [ 56.034150][ T66] ? __lock_release+0x103/0x460 [ 56.034301][ T66] blocking_notifier_call_chain+0x50/0x90 [ 56.034449][ T66] __netdev_upper_dev_unlink+0xd9/0x220 [ 56.034608][ T66] ? mark_held_locks+0x9e/0xe0 [ 56.034758][ T66] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 56.034945][ T66] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 56.035130][ T66] ? __try_to_del_timer_sync+0xe7/0x140 [ 56.035291][ T66] ? __pfx___try_to_del_timer_sync+0x10/0x10 [ 56.035473][ T66] ? mark_held_locks+0x9e/0xe0 [ 56.035619][ T66] netdev_upper_dev_unlink+0x71/0xa0 [ 56.035767][ T66] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 56.035960][ T66] ? mutex_is_locked+0x1c/0x60 [ 56.036106][ T66] ? rtnl_is_locked+0x15/0x20 [ 56.036250][ T66] ? netdev_master_upper_dev_get+0x13/0x120 [ 56.036452][ T66] vrf_device_event+0x78/0xe0 [ 56.036604][ T66] notifier_call_chain+0xcd/0x150 [ 56.036755][ T66] blocking_notifier_call_chain+0x66/0x90 [ 56.036904][ T66] unregister_netdevice_many_notify+0xa83/0x1580 [ 56.037088][ T66] ? mark_held_locks+0x9e/0xe0 [ 56.037250][ T66] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 56.037438][ T66] ? mutex_is_locked+0x1c/0x60 [ 56.037595][ T66] ? rtnl_is_locked+0x15/0x20 [ 56.037746][ T66] ? mutex_is_locked+0x1c/0x60 [ 56.037902][ T66] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 56.038089][ T66] cleanup_net+0x4cf/0xba0 [ 56.038241][ T66] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 56.038393][ T66] ? __pfx_cleanup_net+0x10/0x10 [ 56.038543][ T66] ? trace_lock_acquire+0x14c/0x1f0 [ 56.038777][ T66] ? lock_acquire+0x32/0xc0 [ 56.038929][ T66] ? process_one_work+0xe0b/0x16d0 [ 56.039087][ T66] process_one_work+0xe55/0x16d0 [ 56.039242][ T66] ? __pfx___lock_release+0x10/0x10 [ 56.039395][ T66] ? __pfx_process_one_work+0x10/0x10 [ 56.039547][ T66] ? assign_work+0x16c/0x240 [ 56.039704][ T66] worker_thread+0x58c/0xce0 [ 56.039865][ T66] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 56.040055][ T66] ? __pfx_worker_thread+0x10/0x10 [ 56.040208][ T66] ? __pfx_worker_thread+0x10/0x10 [ 56.040439][ T66] kthread+0x28a/0x350 [ 56.040558][ T66] ? __pfx_kthread+0x10/0x10 [ 56.040706][ T66] ret_from_fork+0x31/0x70 [ 56.040859][ T66] ? __pfx_kthread+0x10/0x10 [ 56.041009][ T66] ret_from_fork_asm+0x1a/0x30 [ 56.041167][ T66] [ 60.080152][ T742] eth0: renamed from r1h1 [ 60.235364][ T744] eth0: renamed from r2h1 [ 60.424466][ T747] eth2: renamed from r2h2 [ 60.636046][ T750] eth1: renamed from r2r1 [ 60.926862][ T755] br0: port 1(eth0) entered blocking state [ 60.927127][ T755] br0: port 1(eth0) entered disabled state [ 60.927363][ T755] eth0: entered allmulticast mode [ 60.928286][ T755] eth0: entered promiscuous mode [ 60.929761][ T37] br0: port 1(eth0) entered blocking state [ 60.929947][ T37] br0: port 1(eth0) entered forwarding state [ 60.982439][ T756] br0: port 2(eth1) entered blocking state [ 60.982635][ T756] br0: port 2(eth1) entered disabled state [ 60.982817][ T756] eth1: entered allmulticast mode [ 60.983702][ T756] eth1: entered promiscuous mode [ 60.985236][ T741] br0: port 2(eth1) entered blocking state [ 60.985472][ T741] br0: port 2(eth1) entered forwarding state [ 76.152153][ T66] eth1: left allmulticast mode [ 76.152339][ T66] eth1: left promiscuous mode [ 76.152627][ T66] br0: port 2(eth1) entered disabled state [ 76.153809][ T66] eth0: left allmulticast mode [ 76.153952][ T66] eth0: left promiscuous mode [ 76.154189][ T66] br0: port 1(eth0) entered disabled state [ 80.128128][ T970] eth0: renamed from r1h1 [ 80.269982][ T972] eth0: renamed from r2h1 [ 80.464461][ T975] eth2: renamed from r2h2 [ 80.670276][ T978] eth1: renamed from r2r1 [ 81.523029][ T993] br0: port 1(eth0) entered blocking state [ 81.523305][ T993] br0: port 1(eth0) entered disabled state [ 81.523497][ T993] eth0: entered allmulticast mode [ 81.524410][ T993] eth0: entered promiscuous mode [ 81.526577][ T37] br0: port 1(eth0) entered blocking state [ 81.526775][ T37] br0: port 1(eth0) entered forwarding state [ 81.600810][ T994] br0: port 2(eth1) entered blocking state [ 81.601075][ T994] br0: port 2(eth1) entered disabled state [ 81.601276][ T994] eth1: entered allmulticast mode [ 81.602154][ T994] eth1: entered promiscuous mode [ 81.603807][ T37] br0: port 2(eth1) entered blocking state [ 81.604055][ T37] br0: port 2(eth1) entered forwarding state [ 96.803419][ T66] eth1: left allmulticast mode [ 96.803595][ T66] eth1: left promiscuous mode [ 96.803897][ T66] br0: port 2(eth1) entered disabled state [ 96.805200][ T66] eth0: left allmulticast mode [ 96.805383][ T66] eth0: left promiscuous mode [ 96.805633][ T66] br0: port 1(eth0) entered disabled state