[   24.756090][  T241] netdevsim netdevsim287 eni287np1: renamed from eth0
[   24.841666][  T238] netdevsim netdevsim577 eni577np1: renamed from eth1
[   27.248682][  T256] ip (256) used greatest stack depth: 24176 bytes left
[   28.044606][  T232] Could not find device with ifindex 2000 in netnsfd 11
[   28.045363][  T232] Could not find netns with fd: 2000
[   28.045932][  T232] Cannot link a netdevsim to itself
[   28.046653][  T232] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).
[   29.882988][    C1] BUG: spinlock bad magic on CPU#1, peer.sh/232
[   29.883299][    C1]  lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: peer.sh/232, .owner_cpu: 1
[   29.883584][    C1] CPU: 1 UID: 0 PID: 232 Comm: peer.sh Not tainted 6.10.0-virtme #1
[   29.883820][    C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   29.884163][    C1] Call Trace:
[   29.884283][    C1]  <IRQ>
[   29.884368][    C1]  dump_stack_lvl+0xb0/0xd0
[   29.884532][    C1]  do_raw_spin_unlock+0x1ac/0x220
[   29.884695][    C1]  _raw_spin_unlock+0x23/0x40
[   29.884852][    C1]  net_tx_action+0x402/0x660
[   29.885015][    C1]  handle_softirqs+0x1f9/0x5c0
[   29.885171][    C1]  ? dev_deactivate_many+0x1e2/0x8d0
[   29.885328][    C1]  do_softirq+0x4d/0xa0
[   29.885441][    C1]  </IRQ>
[   29.885518][    C1]  <TASK>
[   29.885599][    C1]  __local_bh_enable_ip+0xf6/0x120
[   29.885755][    C1]  dev_deactivate_many+0x1e7/0x8d0
[   29.885909][    C1]  __dev_close_many+0x12b/0x2d0
[   29.886065][    C1]  ? __pfx___dev_close_many+0x10/0x10
[   29.886215][    C1]  ? __pfx_validate_chain+0x10/0x10
[   29.886366][    C1]  ? hlock_class+0x4e/0x130
[   29.886523][    C1]  dev_close_many+0x202/0x650
[   29.886673][    C1]  ? __lock_acquire+0xb35/0x1560
[   29.886825][    C1]  ? __pfx_dev_close_many+0x10/0x10
[   29.886981][    C1]  unregister_netdevice_many_notify+0x8e5/0x1570
[   29.887170][    C1]  ? nsim_destroy+0x6b/0x5e0 [netdevsim]
[   29.887342][    C1]  ? __mutex_trylock_common+0xfa/0x260
[   29.887492][    C1]  ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[   29.887677][    C1]  ? __pfx___mutex_trylock_common+0x10/0x10
[   29.887863][    C1]  ? nsim_destroy+0x6b/0x5e0 [netdevsim]
[   29.888019][    C1]  ? trace_contention_end+0xeb/0x150
[   29.888173][    C1]  ? __mutex_lock+0x170/0xac0
[   29.888324][    C1]  ? mntput_no_expire+0x625/0xa50
[   29.888478][    C1]  ? nsim_destroy+0x6b/0x5e0 [netdevsim]
[   29.888636][    C1]  unregister_netdevice_queue+0x2a4/0x410
[   29.888787][    C1]  ? __pfx_do_raw_spin_lock+0x10/0x10
[   29.888936][    C1]  ? __pfx_unregister_netdevice_queue+0x10/0x10
[   29.889124][    C1]  nsim_destroy+0xe8/0x5e0 [netdevsim]
[   29.889285][    C1]  __nsim_dev_port_del+0x17e/0x250 [netdevsim]
[   29.889480][    C1]  nsim_dev_reload_destroy+0xe0/0x470 [netdevsim]
[   29.889677][    C1]  nsim_drv_remove+0x51/0x1d0 [netdevsim]
[   29.889837][    C1]  device_release_driver_internal+0x3bf/0x590
[   29.890026][    C1]  ? klist_put+0xb1/0x170
[   29.890142][    C1]  bus_remove_device+0x1f1/0x3f0
[   29.890295][    C1]  device_del+0x33f/0x8c0
[   29.890412][    C1]  ? __pfx_device_del+0x10/0x10
[   29.890567][    C1]  ? lock_acquire.part.0+0xeb/0x330
[   29.890716][    C1]  ? kernfs_fop_write_iter+0x234/0x460
[   29.890868][    C1]  device_unregister+0x17/0xb0
[   29.891020][    C1]  del_device_store+0x2f3/0x4f0 [netdevsim]
[   29.891218][    C1]  ? __pfx_del_device_store+0x10/0x10 [netdevsim]
[   29.891414][    C1]  ? __pfx_sysfs_kf_write+0x10/0x10
[   29.891565][    C1]  ? sysfs_file_ops+0x11e/0x170
[   29.891731][    C1]  ? __pfx_sysfs_kf_write+0x10/0x10
[   29.891886][    C1]  kernfs_fop_write_iter+0x2c0/0x460
[   29.892039][    C1]  vfs_write+0xa1b/0x10b0
[   29.892155][    C1]  ? __pfx_vfs_write+0x10/0x10
[   29.892305][    C1]  ? find_held_lock+0x2c/0x110
[   29.892460][    C1]  ? __fget_light+0x53/0x1e0
[   29.892615][    C1]  ksys_write+0xf5/0x1e0
[   29.892729][    C1]  ? __pfx_ksys_write+0x10/0x10
[   29.892884][    C1]  do_syscall_64+0xc1/0x1d0
[   29.893040][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   29.893230][    C1] RIP: 0033:0x7f17d6fc6957
[   29.893391][    C1] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
[   29.893921][    C1] RSP: 002b:00007fff10e3e5f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   29.894153][    C1] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f17d6fc6957
[   29.894382][    C1] RDX: 0000000000000004 RSI: 000055da5b916790 RDI: 0000000000000001
[   29.894608][    C1] RBP: 000055da5b916790 R08: 0000000000000000 R09: 00007f17d70394e0
[   29.894832][    C1] R10: 00007f17d70393e0 R11: 0000000000000246 R12: 0000000000000004
[   29.895059][    C1] R13: 00007f17d7082760 R14: 0000000000000004 R15: 00007f17d707d9c0
[   29.895291][    C1]  </TASK>