[    2.284232] netdevsim netdevsim29365 eni29365np1: renamed from eth0
[    2.352766] netdevsim netdevsim21196 eni21196np1: renamed from eth0
[    2.556838] ip (260) used greatest stack depth: 12456 bytes left
[    2.988750] BUG: kernel NULL pointer dereference, address: 0000000000000000
[    2.988856] #PF: supervisor write access in kernel mode
[    2.988892] #PF: error_code(0x0002) - not-present page
[    2.988932] PGD 0 P4D 0 
[    2.988961] Oops: Oops: 0002 [#1] SMP
[    2.988991] CPU: 2 UID: 0 PID: 236 Comm: python3 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) 
[    2.989053] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.989096] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    2.989141] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 <f0> 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41
[    2.989251] RSP: 0018:ffffa9e84059fae8 EFLAGS: 00010046
[    2.989299] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000080100004
[    2.989350] RDX: ffffa9e84059fb20 RSI: 0000000000000000 RDI: 0000000000000000
[    2.989401] RBP: ffffa9e84059fb20 R08: 0000000000000001 R09: ffffffff9b93c800
[    2.989451] R10: ffff9376c4b96800 R11: 0000000000000001 R12: 0000000000000000
[    2.989502] R13: ffffa9e84059fc18 R14: 0000000000000020 R15: 0000000000000000
[    2.989555] FS:  00007f888562a740(0000) GS:ffff937761ed6000(0000) knlGS:0000000000000000
[    2.989609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.989654] CR2: 0000000000000000 CR3: 0000000004a55003 CR4: 0000000000772ef0
[    2.989706] PKRU: 55555554
[    2.989725] Call Trace:
[    2.989742]  <TASK>
[    2.989764]  __cancel_work+0x29/0xe0
[    2.989795]  __cancel_work_sync+0x16/0x80
[    2.989823]  __dev_close_many+0x113/0x2b0
[    2.989858]  netif_close_many+0x98/0x160
[    2.989885]  unregister_netdevice_many_notify+0x10c/0xaa0
[    2.989923]  unregister_netdevice_queue+0xa0/0xe0
[    2.989966]  nsim_destroy+0x86/0x180 [netdevsim]
[    2.990009]  __nsim_dev_port_del+0x47/0x70 [netdevsim]
[    2.990049]  nsim_dev_reload_destroy+0x5b/0x110 [netdevsim]
[    2.990089]  nsim_drv_remove+0x2f/0xb0 [netdevsim]
[    2.990125]  device_release_driver_internal+0x193/0x200
[    2.990168]  bus_remove_device+0xc1/0x100
[    2.990196]  device_del+0x15f/0x480
[    2.990224]  device_unregister+0x12/0x30
[    2.990252]  del_device_store+0x117/0x1a0 [netdevsim]
[    2.990291]  kernfs_fop_write_iter+0x12b/0x1c0
[    2.990333]  vfs_write+0x33a/0x470
[    2.990369]  ksys_write+0x65/0xe0
[    2.990396]  do_syscall_64+0xa4/0xfd0
[    2.990426]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.990461] RIP: 0033:0x7f8885809257
[    2.990489] Code: 0f 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
[    2.990598] RSP: 002b:00007ffd0b4a0ac8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    2.990650] RAX: ffffffffffffffda RBX: 00007f888562a6e0 RCX: 00007f8885809257
[    2.990701] RDX: 0000000000000005 RSI: 00005579b69d7e90 RDI: 0000000000000006
[    2.990752] RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000002
[    2.990802] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f88773f9dc0
[    2.990853] R13: 00005579b69d7e90 R14: 0000000000000006 R15: 00005579b660efd0
[    2.990905]  </TASK>
[    2.990924] Modules linked in: netdevsim
[    2.990963] CR2: 0000000000000000
[    2.990989] ---[ end trace 0000000000000000 ]---
[    2.991025] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    2.991061] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 <f0> 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41
[    2.991171] RSP: 0018:ffffa9e84059fae8 EFLAGS: 00010046
[    2.991206] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000080100004
[    2.991257] RDX: ffffa9e84059fb20 RSI: 0000000000000000 RDI: 0000000000000000
[    2.991307] RBP: ffffa9e84059fb20 R08: 0000000000000001 R09: ffffffff9b93c800
[    2.991358] R10: ffff9376c4b96800 R11: 0000000000000001 R12: 0000000000000000
[    2.991408] R13: ffffa9e84059fc18 R14: 0000000000000020 R15: 0000000000000000
[    2.991462] FS:  00007f888562a740(0000) GS:ffff937761ed6000(0000) knlGS:0000000000000000
[    2.991513] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.991555] CR2: 0000000000000000 CR3: 0000000004a55003 CR4: 0000000000772ef0
[    2.991606] PKRU: 55555554
[    2.991626] note: python3[236] exited with irqs disabled