When running cudaminer once it tries to initialize the card the entire screen freezes.  The computer itself is still running but the Xorg is done for, you cannot even switch to another console window and must reboot (even an mdm or Xorg restart does not help).

At first cudaminer will give you these errors:

stratrum_recv_line failed


...retry after 15 seconds


GPU #0: Geforce 210 with compute capability 1.2


GPU #0: interactive: 1, text-cache:0 single-alloc:0


GPU #0: 32 hash / 4.0 MB per warp.

Once GPU#0 shows up the screen freezes and you can check the kern log and see the following driver tainting issues

Jun 15 00:23:52 localhost kernel: [47044.332646] BUG: unable to handle kernel NULL pointer dereference at 0000000000000058
Jun 15 00:23:52 localhost kernel: [47044.332656] IP: [<ffffffffc0b21dad>] _nv001302rm+0xd/0xb0 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.332878] PGD 461ad6067 PUD 7d98b4067 PMD 0
Jun 15 00:23:52 localhost kernel: [47044.332883] Oops: 0000 [#1] SMP
Jun 15 00:23:52 localhost kernel: [47044.332888] Modules linked in: nvidia_uvm(POE) i2c_dev forcedeth pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bnep rfcomm bluetooth 6lowpan_iphc binfmt_misc dm_crypt snd_hda_codec_rea
ltek snd_hda_codec_generic snd_hda_codec_hdmi hp_wmi sparse_keymap snd_hda_intel snd_hda_controller snd_hda_codec nvidia(POE) dm_multipath snd_hwdep snd_pcm scsi_dh snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_ti
mer kvm_amd kvm parport_pc drm snd ppdev serio_raw soundcore wmi amd64_edac_mod shpchp i2c_nforce2 edac_core edac_mce_amd k10temp mac_hid lp parport raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid0 mul
tipath linear dm_mirror dm_region_hash dm_log raid10 raid1 hid_generic usbhid hid uas usb_storage mptsas mpt2sas mptscsih psmouse mptbase raid_class firewire_ohci scsi_transport_sas firewire_core pata_acpi crc_itu_t sata_nv pata_amd [last
 unloaded: forcedeth]
Jun 15 00:23:52 localhost kernel: [47044.332952] CPU: 5 PID: 24838 Comm: cudaminer Tainted: P           OE 3.16.0-38-generic #52~14.04.1-Ubuntu
Jun 15 00:23:52 localhost kernel: [47044.332957] Hardware name: Hewlett-Packard HP xw9400 Workstation/0A1Ch, BIOS 786D6 v04.03 12/10/2009
Jun 15 00:23:52 localhost kernel: [47044.332960] task: ffff8808001065e0 ti: ffff8806550dc000 task.ti: ffff8806550dc000
Jun 15 00:23:52 localhost kernel: [47044.332962] RIP: 0010:[<ffffffffc0b21dad>]  [<ffffffffc0b21dad>] _nv001302rm+0xd/0xb0 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.333101] RSP: 0018:ffff8806550dfb30  EFLAGS: 00010286
Jun 15 00:23:52 localhost kernel: [47044.333103] RAX: ffff881002756608 RBX: 0000000000000000 RCX: ffff8807f9854008
Jun 15 00:23:52 localhost kernel: [47044.333105] RDX: 0000000000000000 RSI: 00000000ffff50f1 RDI: 0000000000000000
Jun 15 00:23:52 localhost kernel: [47044.333107] RBP: ffff880801ed5bb0 R08: 0000000000000000 R09: 000000ff32340000
Jun 15 00:23:52 localhost kernel: [47044.333109] R10: 0000000000000000 R11: ffffffffc0cd2d00 R12: 0000000000000000
Jun 15 00:23:52 localhost kernel: [47044.333111] R13: 0000000000010000 R14: ffff8808026b0008 R15: 0000000000001274
Jun 15 00:23:52 localhost kernel: [47044.333114] FS:  00007f1059ac2700(0000) GS:ffff88102fc80000(0000) knlGS:0000000000000000
Jun 15 00:23:52 localhost kernel: [47044.333116] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jun 15 00:23:52 localhost kernel: [47044.333118] CR2: 0000000000000058 CR3: 000000045b4bf000 CR4: 00000000000007e0
Jun 15 00:23:52 localhost kernel: [47044.333120] Stack:
Jun 15 00:23:52 localhost kernel: [47044.333122]  00000000000007f9 00000000000007f9 ffff8807f9854090 ffffffffc0b21cb9
Jun 15 00:23:52 localhost kernel: [47044.333126]  00000000000007f9 ffffffffc099b1f8 ffff880801ed5d48 ffff880496026408
Jun 15 00:23:52 localhost kernel: [47044.333129]  0000000000000000 0000000000010000 ffff8808026b0008 ffffffffc0997110
Jun 15 00:23:52 localhost kernel: [47044.333132] Call Trace:
Jun 15 00:23:52 localhost kernel: [47044.333272]  [<ffffffffc0b21cb9>] ? _nv012259rm+0x9/0x20 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.333399]  [<ffffffffc099b1f8>] ? _nv005327rm+0x4b8/0x570 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.333526]  [<ffffffffc0997110>] ? _nv005146rm+0x520/0xb40 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.333652]  [<ffffffffc099706c>] ? _nv005146rm+0x47c/0xb40 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.333777]  [<ffffffffc0993619>] ? _nv005144rm+0xf9/0x220 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.333902]  [<ffffffffc09935a2>] ? _nv005144rm+0x82/0x220 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.333992]  [<ffffffffc0c9f81c>] ? _nv000889rm+0x1a1c/0x1cf0 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.334081]  [<ffffffffc0c9f05c>] ? _nv000889rm+0x125c/0x1cf0 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.334171]  [<ffffffffc0c9fc04>] ? _nv000793rm+0x114/0x1b0 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.334261]  [<ffffffffc0ca5c9a>] ? _nv000700rm+0xda/0xf0 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.334341]  [<ffffffffc0cfd5c9>] ? _nv000789rm+0x1f9/0x8b0 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.334419]  [<ffffffffc0d07d03>] ? rm_ioctl+0x73/0x100 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.334497]  [<ffffffffc0d164ce>] ? nvidia_ioctl+0x13e/0x460 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.334576]  [<ffffffffc0d225af>] ? nvidia_frontend_ioctl+0x2f/0x70 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.334652]  [<ffffffffc0d2260d>] ? nvidia_frontend_unlocked_ioctl+0x1d/0x30 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.334660]  [<ffffffff811e7360>] ? do_vfs_ioctl+0x2e0/0x4c0
Jun 15 00:23:52 localhost kernel: [47044.334663]  [<ffffffff811e75c1>] ? SyS_ioctl+0x81/0xa0
Jun 15 00:23:52 localhost kernel: [47044.334670]  [<ffffffff8176da4d>] ? system_call_fastpath+0x1a/0x1f
Jun 15 00:23:52 localhost kernel: [47044.334672] Code: 09 d0 83 e0 01 c3 0f 1f 84 00 00 00 00 00 8b 76 24 e9 08 00 00 00 0f 1f 84 00 00 00 00 00 41 54 45 31 e4 53 48 89 fb 48 83 ec 08 <83> 7f 58 04 74 5e 81 fe f1 e3 00 00 74 48 77 36 81 fe a0 50 00
Jun 15 00:23:52 localhost kernel: [47044.334702] RIP  [<ffffffffc0b21dad>] _nv001302rm+0xd/0xb0 [nvidia]
Jun 15 00:23:52 localhost kernel: [47044.334837]  RSP <ffff8806550dfb30>
Jun 15 00:23:52 localhost kernel: [47044.334839] CR2: 0000000000000058
Jun 15 00:23:52 localhost kernel: [47044.334843] ---[ end trace f255d62811b2b79b ]---


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