BUG: unable to handle kernel paging request at 0010378c
IP: [<c0124478>] __ticket_spin_lock+0x8/0x20
*pde = 00000000 
Oops: 0002 [#1] SMP 
last sysfs file: /sys/devices/LNXSYSTM:00/device:00/PNP0A08:00/device:03/PNP0C09:00/PNP0C0A:00/power_supply/BAT1/charge_full
Modules linked in: ppp_deflate zlib_deflate bsd_comp ppp_async crc_ccitt binfmt_misc ppdev bridge stp bnep kvm_intel kvm lp parport option usbserial usb_storage snd_hda_codec_intelhdmi snd_hda_codec_realtek snd_hda_intel arc4 snd_hda_codec snd_pcm_oss snd_mixer_oss ecb snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi iwl3945 snd_rawmidi snd_seq_midi_event iwlcore joydev snd_seq snd_timer snd_seq_device sdhci_pci mac80211 psmouse sdhci snd soundcore led_class serio_raw snd_page_alloc cfg80211 btusb r8169 mii fbcon tileblit font bitblit softcursor i915 drm i2c_algo_bit video output intel_agp agpgart

Pid: 273, comm: khubd Not tainted (2.6.31-10-generic #32-Ubuntu) MSI Notebook PR200
EIP: 0060:[<c0124478>] EFLAGS: 00010092 CPU: 1
EIP is at __ticket_spin_lock+0x8/0x20
EAX: 0010378c EBX: 00000292 ECX: 0010378c EDX: 00000100
ESI: 0010378c EDI: f66a73c0 EBP: f70f5d98 ESP: f70f5d98
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process khubd (pid: 273, ti=f70f4000 task=f72ecb60 task.ti=f70f4000)
Stack:
 f70f5da0 c0124508 f70f5db4 c056af2a 00103784 0010378c f66a73c0 f70f5dc8
<0> c0381ded 00103780 00000003 f66a73c0 f70f5df0 f8e9104b 00000003 f70f5df0
<0> c040ca29 00000000 f70a0d00 f70a0d00 f70a0d1c f8ebf2e0 f70f5e0c c040fb19
Call Trace:
 [<c0124508>] ? default_spin_lock_flags+0x8/0x10
 [<c056af2a>] ? _spin_lock_irqsave+0x2a/0x40
 [<c0381ded>] ? tty_port_tty_get+0x1d/0x50
 [<f8e9104b>] ? usb_serial_disconnect+0x6b/0x160 [usbserial]
 [<c040ca29>] ? usb_disable_interface+0x39/0x50
 [<c040fb19>] ? usb_unbind_interface+0xe9/0x120
 [<c039daee>] ? __device_release_driver+0x3e/0x90
 [<c039dc00>] ? device_release_driver+0x20/0x40
 [<c039cf43>] ? bus_remove_device+0x73/0x90
 [<c039b6af>] ? device_del+0xef/0x150
 [<c040c97d>] ? usb_disable_device+0x7d/0xf0
 [<c04075ce>] ? usb_disconnect+0x9e/0x110
 [<c04075ba>] ? usb_disconnect+0x8a/0x110
 [<c040797c>] ? hub_port_connect_change+0x7c/0x830
 [<c040d650>] ? usb_control_msg+0xd0/0x120
 [<c0400100>] ? init_cdrom_command+0x10/0x70
 [<c04091e5>] ? hub_events+0x1f5/0x500
 [<c05690cc>] ? schedule+0x40c/0x730
 [<c0133767>] ? finish_task_switch+0x57/0xe0
 [<c0157a8a>] ? finish_wait+0x4a/0x70
 [<c04094f0>] ? hub_thread+0x0/0x150
 [<c0409525>] ? hub_thread+0x35/0x150
 [<c0157930>] ? autoremove_wake_function+0x0/0x40
 [<c015763c>] ? kthread+0x7c/0x90
 [<c01575c0>] ? kthread+0x0/0x90
 [<c0103f17>] ? kernel_thread_helper+0x7/0x10
Code: ff ff 90 b9 2a 43 12 c0 b8 2d 43 12 c0 e9 59 ff ff ff 90 b9 30 43 12 c0 b8 33 43 12 c0 e9 49 ff ff ff 90 55 ba 00 01 00 00 89 e5 <f0> 66 0f c1 10 38 f2 74 06 f3 90 8a 10 eb f6 5d c3 8d b4 26 00 
EIP: [<c0124478>] __ticket_spin_lock+0x8/0x20 SS:ESP 0068:f70f5d98
CR2: 000000000010378c
---[ end trace 015abc1379692bce ]---