Нулевой указатель модуля Nvidia разыменовывает в, загружаются

Я пытался получить KinectFusion через работу PCL моей машины Ubuntu 14.04, работающей с датчиком Microsoft Kinect v1 и также Asus Xtion Pro датчик. По некоторым причинам пример кода замораживался, таким образом, я отключил одно из этих USB-устройств датчика и когда он все еще был заморожен, я перезапустил свой компьютер. Однако теперь на загружаются, я застреваю на черном экране. Файл /var/log/kern.log показывает следующее для начальной загрузки:

Oct 26 16:55:24 myPC kernel: [    1.532422] nvidia: module license 'NVIDIA' taints kernel.
Oct 26 16:55:24 myPC kernel: [    1.532424] Disabling lock debugging due to kernel taint
Oct 26 16:55:24 myPC kernel: [    1.537407] nvidia: module verification failed: signature and/or  required key missing - tainting kernel
Oct 26 16:55:24 myPC kernel: [    1.557757] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro
Oct 26 16:55:24 myPC kernel: [    1.567443] BUG: unable to handle kernel NULL pointer dereference at           (null)
Oct 26 16:55:24 myPC kernel: [    1.567598] IP: [<ffffffff8172a91b>] __down_common+0x4c/0x144
Oct 26 16:55:24 myPC kernel: [    1.567707] PGD 4239b5067 PUD 4277fd067 PMD 0 
Oct 26 16:55:24 myPC kernel: [    1.567913] Oops: 0002 [#1] SMP 
Oct 26 16:55:24 myPC kernel: [    1.568067] Modules linked in: nvidia(POX+) snd_hda_codec_realtek drm snd_hda_intel(+) snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi eeepc_wmi asus_wmi sparse_keymap mxm_wmi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel snd_seq aes_x86_64 lrw gf128mul snd_seq_device glue_helper ablk_helper snd_timer cryptd snd serio_raw mei_me mei soundcore video shpchp wmi acpi_pad mac_hid parport_pc ppdev lp parport e1000e ahci psmouse ptp libahci pps_core
Oct 26 16:55:24 myPC kernel: [    1.571143] CPU: 4 PID: 617 Comm: nvidia-persiste Tainted: P           OX 3.13.0-66-generic #108-Ubuntu
Oct 26 16:55:24 myPC kernel: [    1.571224] Hardware name: ASUS All Series/Z97-A, BIOS 2012 09/30/2014
Oct 26 16:55:24 myPC kernel: [    1.571280] task: ffff880424460000 ti: ffff880426f20000 task.ti: ffff880426f20000
Oct 26 16:55:24 myPC kernel: [    1.571337] RIP: 0010:[<ffffffff8172a91b>]  [<ffffffff8172a91b>] __down_common+0x4c/0x144
Oct 26 16:55:24 myPC kernel: [    1.571443] RSP: 0018:ffff880426f21b48  EFLAGS: 00010096
Oct 26 16:55:24 myPC kernel: [    1.571497] RAX: 0000000000000000 RBX: ffffffffa0d87410 RCX: 0000000000000000
Oct 26 16:55:24 myPC kernel: [    1.571566] RDX: ffffffffa0d87418 RSI: ffff880426f21b50 RDI: ffffffffa0d87410
Oct 26 16:55:24 myPC kernel: [    1.571644] RBP: ffff880426f21b98 R08: 0000000000000296 R09: ffffffffa0984c7b
Oct 26 16:55:24 myPC kernel: [    1.571715] R10: 0000000000000014 R11: ffffffffffffffc0 R12: 7fffffffffffffff
Oct 26 16:55:24 myPC kernel: [    1.571784] R13: ffff880424460000 R14: 0000000000000002 R15: 0000000000000000
Oct 26 16:55:24 myPC kernel: [    1.571858] FS:  00007f02dfd92740(0000) GS:ffff88043ed00000(0000) knlGS:0000000000000000
Oct 26 16:55:24 myPC kernel: [    1.571985] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Oct 26 16:55:24 myPC kernel: [    1.572054] CR2: 0000000000000000 CR3: 0000000426266000 CR4: 00000000001407e0
Oct 26 16:55:24 myPC kernel: [    1.572157] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Oct 26 16:55:24 myPC kernel: [    1.572249] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Oct 26 16:55:24 myPC kernel: [    1.572346] Stack:
Oct 26 16:55:24 myPC kernel: [    1.572422]  0000000000000000 ffffffffa0d87418 0000000000000000 ffff8804239d12b8
Oct 26 16:55:24 myPC kernel: [    1.572689]  0000000000000000 ffffffffa0d87410 ffff880426690000 ffff880426058f00
Oct 26 16:55:24 myPC kernel: [    1.572977]  0000000000000002 00000000000000ff ffff880426f21ba8 ffffffff8172aa30
Oct 26 16:55:24 myPC kernel: [    1.573258] Call Trace:
Oct 26 16:55:24 myPC kernel: [    1.573326]  [<ffffffff8172aa30>] __down+0x1d/0x1f
Oct 26 16:55:24 myPC kernel: [    1.573397]  [<ffffffff810b0f71>] down+0x41/0x50
Oct 26 16:55:24 myPC kernel: [    1.573536]  [<ffffffffa0985057>] nvidia_open+0x467/0x930 [nvidia]
Oct 26 16:55:24 myPC kernel: [    1.573646]  [<ffffffffa098ff49>] nvidia_frontend_open+0x49/0xa0 [nvidia]
Oct 26 16:55:24 myPC kernel: [    1.573721]  [<ffffffff811c2d4f>] chrdev_open+0x9f/0x1d0
Oct 26 16:55:24 myPC kernel: [    1.573797]  [<ffffffff811bb883>] do_dentry_open+0x233/0x2e0
Oct 26 16:55:24 myPC kernel: [    1.573870]  [<ffffffff811c2cb0>] ? cdev_put+0x30/0x30
Oct 26 16:55:24 myPC kernel: [    1.573940]  [<ffffffff811bbbb9>] vfs_open+0x49/0x50
Oct 26 16:55:24 myPC kernel: [    1.574010]  [<ffffffff811ccf64>] do_last+0x564/0x1240
Oct 26 16:55:24 myPC kernel: [    1.574078]  [<ffffffff811caa21>] ? link_path_walk+0x71/0x880
Oct 26 16:55:24 myPC kernel: [    1.574149]  [<ffffffff8131615b>] ? apparmor_file_alloc_security+0x5b/0x180
Oct 26 16:55:24 myPC kernel: [    1.574220]  [<ffffffff811cdcfb>] path_openat+0xbb/0x650
Oct 26 16:55:24 myPC kernel: [    1.574288]  [<ffffffff810c949d>] ? call_rcu_sched+0x1d/0x20
Oct 26 16:55:24 myPC kernel: [    1.574359]  [<ffffffff811cf0fa>] do_filp_open+0x3a/0x90
Oct 26 16:55:24 myPC kernel: [    1.574431]  [<ffffffff811dbf77>] ? __alloc_fd+0xa7/0x130
Oct 26 16:55:24 myPC kernel: [    1.574508]  [<ffffffff811bd6d9>] do_sys_open+0x129/0x280
Oct 26 16:55:24 myPC kernel: [    1.574580]  [<ffffffff811bd84e>] SyS_open+0x1e/0x20
Oct 26 16:55:24 myPC kernel: [    1.574654]  [<ffffffff81734c5d>] system_call_fastpath+0x1a/0x1f
Oct 26 16:55:24 myPC kernel: [    1.574724] Code: 54 49 89 d4 48 8d 57 08 53 48 89 fb 48 83 e4 f0 48 83 ec 28 48 8b 47 10 48 8d 74 24 08 48 89 54 24 08 48 89 44 24 10 48 89 77 10 <48> 89 30 4c 89 f0 4c 89 6c 24 18 83 e0 01 c6 44 24 20 00 48 89 
Oct 26 16:55:24 myPC kernel: [    1.578860] RIP  [<ffffffff8172a91b>] __down_common+0x4c/0x144
Oct 26 16:55:24 myPC kernel: [    1.578977]  RSP <ffff880426f21b48>
Oct 26 16:55:24 myPC kernel: [    1.579040] CR2: 0000000000000000
Oct 26 16:55:24 myPC kernel: [    1.579105] ---[ end trace 6f5428ed50ba31b9 ]---
Oct 26 16:55:24 myPC kernel: [    1.585759] usb 3-13: new low-speed USB device number 3 using xhci_hcd
Oct 26 16:55:24 myPC kernel: [    1.618163] usb 3-13: New USB device found, idVendor=413c, idProduct=2105
Oct 26 16:55:24 myPC kernel: [    1.618252] usb 3-13: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Oct 26 16:55:24 myPC kernel: [    1.618366] usb 3-13: Product: Dell USB Keyboard
Oct 26 16:55:24 myPC kernel: [    1.618458] usb 3-13: Manufacturer: Dell
Oct 26 16:55:24 myPC kernel: [    1.618636] usb 3-13: ep 0x81 - rounding interval to 128 microframes, ep desc says 192 microframes
Oct 26 16:55:24 myPC kernel: [    1.671128] Bluetooth: Core ver 2.17
Oct 26 16:55:24 myPC kernel: [    1.671229] NET: Registered protocol family 31
Oct 26 16:55:24 myPC kernel: [    1.671312] Bluetooth: HCI device and connection manager initialized
Oct 26 16:55:24 myPC kernel: [    1.671404] Bluetooth: HCI socket layer initialized
Oct 26 16:55:24 myPC kernel: [    1.671489] Bluetooth: L2CAP socket layer initialized
Oct 26 16:55:24 myPC kernel: [    1.671585] Bluetooth: SCO socket layer initialized
Oct 26 16:55:24 myPC kernel: [    1.674431] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
Oct 26 16:55:24 myPC kernel: [    1.674483] Bluetooth: RFCOMM TTY layer initialized
Oct 26 16:55:24 myPC kernel: [    1.674488] Bluetooth: RFCOMM socket layer initialized
Oct 26 16:55:24 myPC kernel: [    1.674491] Bluetooth: RFCOMM ver 1.11
Oct 26 16:55:24 myPC kernel: [    1.674714] Bluetooth: BNEP filters: protocol multicast
Oct 26 16:55:24 myPC kernel: [    1.674832] Bluetooth: BNEP socket layer initialized
Oct 26 16:55:24 myPC kernel: [    1.794062] usb 3-14: new low-speed USB device number 4 using xhci_hcd
Oct 26 16:55:24 myPC kernel: [    1.814379] e1000e 0000:00:19.0: irq 43 for MSI/MSI-X
Oct 26 16:55:24 myPC kernel: [    1.814774] usb 3-14: New USB device found, idVendor=045e, idProduct=0039
Oct 26 16:55:24 myPC kernel: [    1.814843] usb 3-14: New USB device strings: Mfr=1, Product=3, SerialNumber=0
Oct 26 16:55:24 myPC kernel: [    1.814925] usb 3-14: Product: Microsoft 5-Button Mouse with IntelliEye(TM)
Oct 26 16:55:24 myPC kernel: [    1.814999] usb 3-14: Manufacturer: Microsoft
Oct 26 16:55:24 myPC kernel: [    1.815167] usb 3-14: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
Oct 26 16:55:24 myPC kernel: [    1.829873] hidraw: raw HID events driver (C) Jiri Kosina
Oct 26 16:55:24 myPC kernel: [    1.841903] usbcore: registered new interface driver usbhid
Oct 26 16:55:24 myPC kernel: [    1.841982] usbhid: USB HID core driver
Oct 26 16:55:24 myPC kernel: [    1.843394] input: Dell Dell USB Keyboard as /devices/pci0000:00/0000:00:14.0/usb3/3-13/3-13:1.0/input/input15
Oct 26 16:55:24 myPC kernel: [    1.844036] hid-generic 0003:413C:2105.0002: input,hidraw0: USB HID v1.10 Keyboard [Dell Dell USB Keyboard] on usb-0000:00:14.0-13/input0
Oct 26 16:55:24 myPC kernel: [    1.844201] input: Microsoft Microsoft 5-Button Mouse with IntelliEye(TM) as /devices/pci0000:00/0000:00:14.0/usb3/3-14/3-14:1.0/input/input16
Oct 26 16:55:24 myPC kernel: [    1.844456] hid-generic 0003:045E:0039.0003: input,hidraw1: USB HID v1.10 Mouse [Microsoft Microsoft 5-Button Mouse with IntelliEye(TM)] on usb-0000:00:14.0-14/input0
Oct 26 16:55:24 myPC kernel: [    1.845408] input: 3M 3M MicroTouch USB controller as /devices/pci0000:00/0000:00:14.0/usb3/3-10/3-10:1.0/input/input17
Oct 26 16:55:24 myPC kernel: [    1.845605] hid-multitouch 0003:0596:0502.0001: input,hiddev0,hidraw2: USB HID v1.10 Pointer [3M 3M MicroTouch USB controller] on usb-0000:00:14.0-10/input0
Oct 26 16:55:24 myPC kernel: [    1.882309] input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input19
Oct 26 16:55:24 myPC kernel: [    1.882520] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input18
Oct 26 16:55:24 myPC kernel: [    1.882715] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input14
Oct 26 16:55:24 myPC kernel: [    1.882913] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input13
Oct 26 16:55:24 myPC kernel: [    1.885020] vgaarb: device changed decodes: PCI:0000:01:00.0,olddecodes=io+mem,decodes=none:owns=none
Oct 26 16:55:24 myPC kernel: [    1.904256] /dev/vmmon[1074]: Module vmmon: registered with major=10 minor=165
Oct 26 16:55:24 myPC kernel: [    1.904363] /dev/vmmon[1074]: Module vmmon: initialized
Oct 26 16:55:24 myPC kernel: [    1.914290] Guest personality initialized and is inactive
Oct 26 16:55:24 myPC kernel: [    1.914874] VMCI host device registered (name=vmci, major=10, minor=56)
Oct 26 16:55:24 myPC kernel: [    1.914964] Initialized host personality
Oct 26 16:55:24 myPC kernel: [    1.918306] e1000e 0000:00:19.0: irq 43 for MSI/MSI-X
Oct 26 16:55:24 myPC kernel: [    1.918505] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Oct 26 16:55:24 myPC kernel: [    1.918825] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Oct 26 16:55:24 myPC kernel: [    1.932526] NET: Registered protocol family 40
Oct 26 16:55:24 myPC kernel: [    1.984292] random: nonblocking pool is initialized
Oct 26 16:55:25 myPC kernel: [    2.487169] Switched to clocksource tsc
Oct 26 16:55:25 myPC kernel: [    2.517629] /dev/vmnet: open called by PID 1315 (vmnet-netifup)
Oct 26 16:55:25 myPC kernel: [    2.517635] /dev/vmnet: hub 1 does not exist, allocating memory.
Oct 26 16:55:25 myPC kernel: [    2.517642] /dev/vmnet: port on hub 1 successfully opened
Oct 26 16:55:25 myPC kernel: [    2.526776] /dev/vmnet: open called by PID 1317 (vmnet-dhcpd)
Oct 26 16:55:25 myPC kernel: [    2.526783] /dev/vmnet: port on hub 1 successfully opened
Oct 26 16:55:25 myPC kernel: [    2.531368] /dev/vmnet: open called by PID 1328 (vmnet-natd)
Oct 26 16:55:25 myPC kernel: [    2.531372] /dev/vmnet: hub 8 does not exist, allocating memory.
Oct 26 16:55:25 myPC kernel: [    2.531379] /dev/vmnet: port on hub 8 successfully opened
Oct 26 16:55:25 myPC kernel: [    2.532882] /dev/vmnet: open called by PID 1329 (vmnet-netifup)
Oct 26 16:55:25 myPC kernel: [    2.532887] /dev/vmnet: port on hub 8 successfully opened
Oct 26 16:55:25 myPC kernel: [    2.537544] /dev/vmnet: open called by PID 1332 (vmnet-dhcpd)
Oct 26 16:55:25 myPC kernel: [    2.537552] /dev/vmnet: port on hub 8 successfully opened
Oct 26 16:55:25 myPC kernel: [    2.562324] vboxdrv: Found 8 processor cores.
Oct 26 16:55:25 myPC kernel: [    2.562547] vboxdrv: fAsync=0 offMin=0x24f offMax=0x3027
Oct 26 16:55:25 myPC kernel: [    2.562618] vboxdrv: TSC mode is 'synchronous', kernel timer mode is 'normal'.
Oct 26 16:55:25 myPC kernel: [    2.562620] vboxdrv: Successfully loaded version 4.3.10_Ubuntu (interface 0x001a0007).
Oct 26 16:55:25 myPC kernel: [    2.569911] vboxpci: IOMMU not found (not registered)
Oct 26 16:55:27 myPC kernel: [    4.807747] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
Oct 26 16:55:27 myPC kernel: [    4.807776] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Oct 26 16:55:27 myPC kernel: [    4.807922] /dev/vmnet: open called by PID 1265 (vmnet-bridge)
Oct 26 16:55:27 myPC kernel: [    4.807928] /dev/vmnet: hub 0 does not exist, allocating memory.
Oct 26 16:55:27 myPC kernel: [    4.807946] /dev/vmnet: port on hub 0 successfully opened
Oct 26 16:55:27 myPC kernel: [    4.807954] bridge-eth0: up
Oct 26 16:55:27 myPC kernel: [    4.807955] bridge-eth0: attached
Oct 26 16:55:27 myPC kernel: [    5.008155] userif-2: sent link down event.
Oct 26 16:55:27 myPC kernel: [    5.008157] userif-2: sent link up event.
Oct 26 16:55:28 myPC kernel: [    6.045987] userif-2: sent link down event.
Oct 26 16:55:28 myPC kernel: [    6.045990] userif-2: sent link up event.

Кажется, что мои драйверы NVIDIA или что-то были обновлены в какой-то момент так, чтобы теперь был разыменованный нулевой указатель во время запуска, и это "заражает" ядро. Я не уверен, ли это от моего отключения одного из датчиков и перезапуска компьютера, в то время как это было заморожено, или если это происходит из-за другой проблемы, которая по совпадению возникла, в то время как я пытался установить реализацию KinectFusion PCL.

Я попытался перезапустить компьютер много раз, но я всегда получаю тот же результат (включая те же журналы как выше). Что самый легкий путь состоит в том, чтобы вернуть мои вычисления к нормальному состоянию?