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Dm3Ch

dmesg v2

Dm3Ch
Jul 31st, 2014
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  1. root@Dm3Ch-UX31A:~/Workspace/usb-pkk-backlight_driver# dmesg
  2. [ 103.683913] usb 3-2: new full-speed USB device number 2 using xhci_hcd
  3. [ 103.705574] usb 3-2: New USB device found, idVendor=04d8, idProduct=c002
  4. [ 103.705585] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
  5. [ 103.705590] usb 3-2: Product: USB-LCD-256x64
  6. [ 103.707329] USB PKK-BL Driver: Hardware probe...
  7. [ 103.707345] pkk_bl_probe: intf = ffff8800bc897000
  8. [ 103.707351] pkk_bl_probe: &intf->dev = ffff8800bc897030
  9. [ 103.707358] USB PKK-BL Driver: Backlight device initialization...
  10. [ 103.707370] pkk_bl_init_backlight(): data->intf = ffff8800bc897000
  11. [ 103.707370] dev = ffff8800bc897030
  12. [ 103.707370] data = ffff8800c241f940
  13. [ 103.707386] pkk_bl_init_backlight(): dev_name(dev) = 3-2:1.0
  14. [ 103.707386] dev = ffff8800bc897030
  15. [ 103.707386] data = ffff8800c241f940
  16. [ 103.707502] USB PKK-BL Driver: pkk_bl_init_backlight():73
  17. [ 103.707508] USB PKK-BL Driver: Brightness set function called. New brightness: 255.
  18. [ 103.707543] BUG: unable to handle kernel NULL pointer dereference at (null)
  19. [ 103.707702] IP: [<ffffffffa06b108e>] pkk_bl_set_brightness+0x3e/0x90 [usb_pkk_backlight]
  20. [ 103.707860] PGD 0
  21. [ 103.707907] Oops: 0002 [#1] SMP
  22. [ 103.707981] Modules linked in: usb_pkk_backlight(OF) ctr ccm snd_hrtimer pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) rfcomm snd_hda_codec_hdmi bnep snd_hda_codec_realtek uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core asus_nb_wmi asus_wmi videodev sparse_keymap rts5139(C) btusb bluetooth intel_rapl x86_pkg_temp_thermal snd_hda_intel intel_powerclamp coretemp kvm_intel binfmt_misc snd_hda_codec kvm snd_hwdep crct10dif_pclmul crc32_pclmul snd_pcm ghash_clmulni_intel aesni_intel arc4 snd_page_alloc aes_x86_64 lrw gf128mul snd_seq_midi glue_helper snd_seq_midi_event ablk_helper snd_rawmidi cryptd snd_seq joydev iwldvm mac80211 serio_raw snd_seq_device snd_timer snd i915 iwlwifi cfg80211 drm_kms_helper lpc_ich soundcore drm mei_me wmi mei i2c_algo_bit mac_hid parport_pc ppdev video lp parport psmouse ahci libahci
  23. [ 103.709611] CPU: 1 PID: 43 Comm: khubd Tainted: GF C O 3.13.0-32-generic #57-Ubuntu
  24. [ 103.709739] Hardware name: ASUSTeK COMPUTER INC. UX31A/UX31A, BIOS UX31A.218 01/31/2013
  25. [ 103.709864] task: ffff880118ad47d0 ti: ffff880118522000 task.ti: ffff880118522000
  26. [ 103.709979] RIP: 0010:[<ffffffffa06b108e>] [<ffffffffa06b108e>] pkk_bl_set_brightness+0x3e/0x90 [usb_pkk_backlight]
  27. [ 103.710150] RSP: 0018:ffff880118523908 EFLAGS: 00010286
  28. [ 103.710234] RAX: 0000000000000047 RBX: ffff8800c241f940 RCX: 0000000000000006
  29. [ 103.710345] RDX: 0000000000000007 RSI: 0000000000000046 RDI: 0000000000000246
  30. [ 103.710455] RBP: ffff880118523920 R08: 0000000000000096 R09: 0000000000000411
  31. [ 103.710565] R10: 0000000000000000 R11: ffff880118523636 R12: 0000000000000000
  32. [ 103.710676] R13: ffff8800c25d8400 R14: ffff8800c25d8400 R15: ffff8800c241f940
  33. [ 103.710788] FS: 0000000000000000(0000) GS:ffff88011ee80000(0000) knlGS:0000000000000000
  34. [ 103.710913] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  35. [ 103.711003] CR2: 0000000000000000 CR3: 0000000001c0e000 CR4: 00000000001407e0
  36. [ 103.711113] Stack:
  37. [ 103.711149] ffff8800bc897000 ffff8800c51f1888 ffff880118523938 ffff880118523978
  38. [ 103.711286] ffffffffa06b13a9 ffff8800c51f1800 000000ff00000000 0000000000000000
  39. [ 103.711421] 0000000000000001 ffff8800c51f1888 ffff8800c51f1800 ffffffffa06b3068
  40. [ 103.711557] Call Trace:
  41. [ 103.711627] [<ffffffffa06b13a9>] pkk_bl_probe+0x209/0x311 [usb_pkk_backlight]
  42. [ 103.711790] [<ffffffff815471c4>] usb_probe_interface+0x1c4/0x2f0
  43. [ 103.711883] [<ffffffff8149355d>] driver_probe_device+0x12d/0x3e0
  44. [ 103.711952] [<ffffffff81493810>] ? driver_probe_device+0x3e0/0x3e0
  45. [ 103.712021] [<ffffffff8149384b>] __device_attach+0x3b/0x40
  46. [ 103.712087] [<ffffffff81491583>] bus_for_each_drv+0x63/0xa0
  47. [ 103.712152] [<ffffffff814933b8>] device_attach+0x88/0xa0
  48. [ 103.712213] [<ffffffff814927c8>] bus_probe_device+0x98/0xc0
  49. [ 103.712278] [<ffffffff81490625>] device_add+0x4c5/0x640
  50. [ 103.712340] [<ffffffff815451db>] usb_set_configuration+0x4fb/0x810
  51. [ 103.712412] [<ffffffff8154f54e>] generic_probe+0x2e/0xa0
  52. [ 103.712473] [<ffffffff81546fb2>] usb_probe_device+0x32/0x80
  53. [ 103.712537] [<ffffffff8149355d>] driver_probe_device+0x12d/0x3e0
  54. [ 103.712605] [<ffffffff81493810>] ? driver_probe_device+0x3e0/0x3e0
  55. [ 103.712673] [<ffffffff8149384b>] __device_attach+0x3b/0x40
  56. [ 103.712738] [<ffffffff81491583>] bus_for_each_drv+0x63/0xa0
  57. [ 103.712805] [<ffffffff814933b8>] device_attach+0x88/0xa0
  58. [ 103.712865] [<ffffffff814927c8>] bus_probe_device+0x98/0xc0
  59. [ 103.712947] [<ffffffff81490625>] device_add+0x4c5/0x640
  60. [ 103.713010] [<ffffffff815397f8>] usb_new_device+0x268/0x430
  61. [ 103.713076] [<ffffffff8153bee0>] hub_port_connect_change+0x5c0/0xb50
  62. [ 103.713148] [<ffffffff8153c934>] hub_events+0x4c4/0xa20
  63. [ 103.713209] [<ffffffff8153cec5>] hub_thread+0x35/0x160
  64. [ 103.713272] [<ffffffff810aaf00>] ? prepare_to_wait_event+0x100/0x100
  65. [ 103.713345] [<ffffffff8153ce90>] ? hub_events+0xa20/0xa20
  66. [ 103.713408] [<ffffffff8108b3d2>] kthread+0xd2/0xf0
  67. [ 103.713465] [<ffffffff8108b300>] ? kthread_create_on_node+0x1d0/0x1d0
  68. [ 103.713540] [<ffffffff8172c5bc>] ret_from_fork+0x7c/0xb0
  69. [ 103.713602] [<ffffffff8108b300>] ? kthread_create_on_node+0x1d0/0x1d0
  70. [ 103.713671] Code: 00 00 41 54 53 e8 23 1c de e0 41 8b 75 00 4c 8b 60 20 48 89 c3 48 c7 c7 78 20 6b a0 40 88 70 30 40 0f b6 f6 31 c0 e8 e1 48 06 e1 <41> c6 04 24 91 0f b6 43 30 be d0 00 00 00 41 88 44 24 01 48 8b
  71. [ 103.714148] RIP [<ffffffffa06b108e>] pkk_bl_set_brightness+0x3e/0x90 [usb_pkk_backlight]
  72. [ 103.714242] RSP <ffff880118523908>
  73. [ 103.714280] CR2: 0000000000000000
  74. [ 103.741858] ---[ end trace 0cd1b89f80217a84 ]---
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