[ 24.539223][ T242] ip (242) used greatest stack depth: 23984 bytes left [ 33.632698][ T280] ip (280) used greatest stack depth: 23760 bytes left [ 34.233775][ T282] eth3: renamed from tmp [ 36.284585][ T289] eth2: renamed from tmp [ 39.141391][ T299] eth0: renamed from tmp [ 40.001913][ T302] br0: port 1(eth0) entered blocking state [ 40.002463][ T302] br0: port 1(eth0) entered disabled state [ 40.002697][ T302] eth0: entered allmulticast mode [ 40.003881][ T302] eth0: entered promiscuous mode [ 40.005188][ T302] br0: port 1(eth0) entered blocking state [ 40.005461][ T302] br0: port 1(eth0) entered forwarding state [ 41.191111][ T306] eth1: renamed from tmp [ 42.044663][ T309] br0: port 2(eth1) entered blocking state [ 42.044881][ T309] br0: port 2(eth1) entered disabled state [ 42.045097][ T309] eth1: entered allmulticast mode [ 42.046226][ T309] eth1: entered promiscuous mode [ 42.047079][ T309] br0: port 2(eth1) entered blocking state [ 42.047418][ T309] br0: port 2(eth1) entered forwarding state [ 46.886567][ C3] BUG: spinlock bad magic on CPU#3, kworker/u16:0/11 [ 46.886769][ C3] lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: kworker/u16:0/11, .owner_cpu: 3 [ 46.887033][ C3] CPU: 3 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.10.0-virtme #1 [ 46.887226][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 46.887512][ C3] Workqueue: netns cleanup_net [ 46.887646][ C3] Call Trace: [ 46.887746][ C3] <IRQ> [ 46.887814][ C3] dump_stack_lvl+0xb0/0xd0 [ 46.887950][ C3] do_raw_spin_unlock+0x1ac/0x220 [ 46.888085][ C3] _raw_spin_unlock+0x23/0x40 [ 46.888211][ C3] net_tx_action+0x424/0x680 [ 46.888342][ C3] handle_softirqs+0x1f9/0x5c0 [ 46.888473][ C3] ? dev_deactivate_many+0x1e2/0x8d0 [ 46.888604][ C3] do_softirq+0x4d/0xa0 [ 46.888700][ C3] </IRQ> [ 46.888766][ C3] <TASK> [ 46.888829][ C3] __local_bh_enable_ip+0xf6/0x120 [ 46.888960][ C3] dev_deactivate_many+0x1e7/0x8d0 [ 46.889096][ C3] __dev_close_many+0x12b/0x2d0 [ 46.889224][ C3] ? __pfx___dev_close_many+0x10/0x10 [ 46.889350][ C3] ? __lock_acquire+0xa70/0x1560 [ 46.889490][ C3] dev_close_many+0x202/0x650 [ 46.889617][ C3] ? lock_acquire.part.0+0xeb/0x330 [ 46.889752][ C3] ? default_device_exit_batch+0x81/0x2d0 [ 46.889882][ C3] ? __pfx_dev_close_many+0x10/0x10 [ 46.890012][ C3] ? fou_exit_net+0x2f/0xf0 [ 46.890143][ C3] ? __mutex_trylock_common+0xfa/0x260 [ 46.890275][ C3] unregister_netdevice_many_notify+0x8e5/0x1570 [ 46.890436][ C3] ? lock_acquire+0x32/0xc0 [ 46.890565][ C3] ? trace_contention_end+0xeb/0x150 [ 46.890694][ C3] ? __mutex_lock+0x170/0xac0 [ 46.890828][ C3] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 46.890986][ C3] ? __mutex_lock+0x170/0xac0 [ 46.891120][ C3] ? find_held_lock+0x2c/0x110 [ 46.891258][ C3] ? mutex_is_locked+0x17/0x50 [ 46.891384][ C3] ? rtnl_is_locked+0x15/0x20 [ 46.891511][ C3] ? unregister_netdevice_queue+0x70/0x410 [ 46.891671][ C3] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 46.891827][ C3] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 46.891986][ C3] default_device_exit_batch+0x234/0x2d0 [ 46.892115][ C3] ? __pfx_default_device_exit_batch+0x10/0x10 [ 46.892287][ C3] ? ops_exit_list+0xb4/0x170 [ 46.892421][ C3] cleanup_net+0x4ef/0xb10 [ 46.892550][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 46.892684][ C3] ? __pfx_cleanup_net+0x10/0x10 [ 46.892813][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 46.892946][ C3] ? process_one_work+0xdf1/0x1670 [ 46.893070][ C3] ? lock_acquire+0x32/0xc0 [ 46.893197][ C3] ? process_one_work+0xdf1/0x1670 [ 46.893326][ C3] process_one_work+0xe3b/0x1670 [ 46.893459][ C3] ? __pfx___lock_release+0x10/0x10 [ 46.893588][ C3] ? __pfx_process_one_work+0x10/0x10 [ 46.893729][ C3] ? assign_work+0x16c/0x240 [ 46.893862][ C3] worker_thread+0x587/0xce0 [ 46.893993][ C3] ? __pfx_worker_thread+0x10/0x10 [ 46.894119][ C3] kthread+0x28a/0x350 [ 46.894219][ C3] ? __pfx_kthread+0x10/0x10 [ 46.894346][ C3] ret_from_fork+0x31/0x70 [ 46.894473][ C3] ? __pfx_kthread+0x10/0x10 [ 46.894600][ C3] ret_from_fork_asm+0x1a/0x30 [ 46.894736][ C3] </TASK> [ 46.898025][ T11] br0: port 1(eth0) entered disabled state [ 47.016567][ T11] eth0 (unregistering): left allmulticast mode [ 47.016812][ T11] eth0 (unregistering): left promiscuous mode [ 47.016972][ T11] br0: port 1(eth0) entered disabled state [ 47.669832][ T11] eth1: left allmulticast mode [ 47.669980][ T11] eth1: left promiscuous mode [ 47.670213][ T11] br0: port 2(eth1) entered disabled state [ 56.081434][ T369] eth1: renamed from tmp [ 58.288919][ T378] eth2: renamed from tmp