[    1.930872] netconsole: network logging started
[    4.353305] netconsole selftest: netcons_4MVG2
[    4.413900] BUG: kernel NULL pointer dereference, address: 0000000000000000
[    4.413969] #PF: supervisor write access in kernel mode
[    4.414004] #PF: error_code(0x0002) - not-present page
[    4.414047] PGD 0 P4D 0 
[    4.414069] Oops: Oops: 0002 [#1] SMP
[    4.414097] CPU: 2 UID: 0 PID: 236 Comm: bash Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) 
[    4.414153] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    4.414196] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    4.414239] 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
[    4.414349] RSP: 0018:ffffaa578058fae8 EFLAGS: 00010046
[    4.414384] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 000000008010000b
[    4.414429] RDX: ffffaa578058fb20 RSI: 0000000000000000 RDI: 0000000000000000
[    4.414474] RBP: ffffaa578058fb20 R08: 0000000000000001 R09: ffffffff9b73c800
[    4.414518] R10: ffff9e83c7067000 R11: 0000000000000001 R12: 0000000000000000
[    4.414563] R13: ffffaa578058fc18 R14: 0000000000000020 R15: 0000000000000000
[    4.414613] FS:  00007f011ba3e000(0000) GS:ffff9e84620d6000(0000) knlGS:0000000000000000
[    4.414662] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.414704] CR2: 0000000000000000 CR3: 000000000586f003 CR4: 0000000000772ef0
[    4.414756] PKRU: 55555554
[    4.414774] Call Trace:
[    4.414791]  <TASK>
[    4.414816]  __cancel_work+0x29/0xe0
[    4.414846]  __cancel_work_sync+0x16/0x80
[    4.414874]  __dev_close_many+0x113/0x2b0
[    4.414909]  netif_close_many+0x98/0x160
[    4.414935]  unregister_netdevice_many_notify+0x10c/0xaa0
[    4.414972]  unregister_netdevice_queue+0xa0/0xe0
[    4.415006]  nsim_destroy+0x86/0x180 [netdevsim]
[    4.415052]  __nsim_dev_port_del+0x47/0x70 [netdevsim]
[    4.415086]  nsim_dev_reload_destroy+0x5b/0x110 [netdevsim]
[    4.415122]  nsim_drv_remove+0x2f/0xb0 [netdevsim]
[    4.415158]  device_release_driver_internal+0x193/0x200
[    4.415200]  bus_remove_device+0xc1/0x100
[    4.415228]  device_del+0x15f/0x480
[    4.415256]  device_unregister+0x12/0x30
[    4.415284]  del_device_store+0x117/0x1a0 [netdevsim]
[    4.415320]  kernfs_fop_write_iter+0x12b/0x1c0
[    4.415359]  vfs_write+0x33a/0x470
[    4.415390]  ksys_write+0x65/0xe0
[    4.415417]  do_syscall_64+0xa4/0xfd0
[    4.415446]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    4.415481] RIP: 0033:0x7f011bb3e257
[    4.415509] 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
[    4.415623] RSP: 002b:00007ffc371c38f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    4.415686] RAX: ffffffffffffffda RBX: 00007f011bc3a780 RCX: 00007f011bb3e257
[    4.415737] RDX: 0000000000000004 RSI: 000055c95958e410 RDI: 0000000000000001
[    4.415781] RBP: 0000000000000004 R08: 0000000000000000 R09: 00007f011bbf0d20
[    4.415825] R10: 00007f011bbf0c20 R11: 0000000000000246 R12: 0000000000000004
[    4.415870] R13: 000055c95958e410 R14: 0000000000000004 R15: 00007f011bc359c0
[    4.415915]  </TASK>
[    4.415935] Modules linked in: netconsole netdevsim
[    4.415971] CR2: 0000000000000000
[    4.415998] ---[ end trace 0000000000000000 ]---
[    4.416039] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    4.416074] 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
[    4.416183] RSP: 0018:ffffaa578058fae8 EFLAGS: 00010046
[    4.416213] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 000000008010000b
[    4.416258] RDX: ffffaa578058fb20 RSI: 0000000000000000 RDI: 0000000000000000
[    4.416302] RBP: ffffaa578058fb20 R08: 0000000000000001 R09: ffffffff9b73c800
[    4.416346] R10: ffff9e83c7067000 R11: 0000000000000001 R12: 0000000000000000
[    4.416391] R13: ffffaa578058fc18 R14: 0000000000000020 R15: 0000000000000000
[    4.416438] FS:  00007f011ba3e000(0000) GS:ffff9e84620d6000(0000) knlGS:0000000000000000
[    4.416496] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.416538] CR2: 0000000000000000 CR3: 000000000586f003 CR4: 0000000000772ef0
[    4.416583] PKRU: 55555554
[    4.416605] note: bash[236] exited with irqs disabled