BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<(null)>] (null)
PGD 1aa1ba067 PUD 1b2ddc067 PMD 0 
Oops: 0010 [#1] SMP 
last sysfs file: /sys/module/l2cap/initstate
CPU 2 
Modules linked in: rfcomm sco bnep l2cap snd_hda_codec_nvhdmi joydev snd_hda_codec_realtek arc4 snd_hda_intel snd_seq_midi snd_hda_codec iwlagn snd_hwdep snd_rawmidi snd_pcm nvidia(P) snd_seq_midi_event iwlcore uvcvideo snd_seq mac80211 snd_timer snd_seq_device btusb bluetooth sony_laptop videodev v4l1_compat v4l2_compat_ioctl32 cfg80211 psmouse snd serio_raw intel_ips video output intel_agp qcserial usb_wwan soundcore snd_page_alloc usbserial lp parport ahci firewire_ohci atl1c libahci sdhci_pci sdhci firewire_core led_class crc_itu_t

Pid: 777, comm: ips-adjust Tainted: P            2.6.35-19-generic #28-Ubuntu VAIO/VPCS11C5E
RIP: 0010:[<0000000000000000>]  [<(null)>] (null)
RSP: 0018:ffff8801ac043e78  EFLAGS: 00010202
RAX: 0000000000000286 RBX: ffff8801b40210c0 RCX: 0000000000000064
RDX: 000000000000ffff RSI: 0000000000000286 RDI: 0000000000000286
RBP: ffff8801ac043ee0 R08: 0000000000000000 R09: 00000000ffffffff
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff8801b4021100
R13: 0000000000000000 R14: 0000000000002328 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff880001e80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 00000001b4f63000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process ips-adjust (pid: 777, threadinfo ffff8801ac042000, task ffff8801ac295b80)
Stack:
 ffffffffa00c0c03 ffff8801ac043fd8 ffff8801ac043eac ffff8801b0735b80
<0> ffff880100001184 0000000000000286 ffff8801b4069be8 ffff8801ac043ee0
<0> ffff8801b4069bc8 ffff8801ac043ef8 ffffffffa00c08c0 ffff8801b40210c0
Call Trace:
 [<ffffffffa00c0c03>] ? ips_adjust+0x343/0x490 [intel_ips]
 [<ffffffffa00c08c0>] ? ips_adjust+0x0/0x490 [intel_ips]
 [<ffffffff8107dfb6>] kthread+0x96/0xa0
 [<ffffffff8100aee4>] kernel_thread_helper+0x4/0x10
 [<ffffffff8107df20>] ? kthread+0x0/0xa0
 [<ffffffff8100aee0>] ? kernel_thread_helper+0x0/0x10
Code:  Bad RIP value.
RIP  [<(null)>] (null)
 RSP <ffff8801ac043e78>
CR2: 0000000000000000
---[ end trace aaeda0daeebb2ccc ]---