[18446744059.501920] BUG: unable to handle kernel NULL pointer dereference at (null)
[18446744059.501925] IP: [<(null)>] (null)
[18446744059.501929] PGD 0 
[18446744059.501932] Oops: 0000 [#1] SMP 
[18446744059.501935] last sysfs file: /sys/devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda8/stat
[18446744059.501940] CPU 0 
[18446744059.501941] Modules linked in: binfmt_misc parport_pc ppdev vboxdrv snd_hda_codec_atihdmi snd_hda_codec_idt snd_hda_intel i915 snd_seq_midi radeon snd_rawmidi uvcvideo snd_hda_codec snd_seq_midi_event joydev snd_seq usbhid snd_hwdep hid videodev v4l1_compat v4l2_compat_ioctl32 lib80211_crypt_tkip snd_pcm hp_wmi wacom hp_accel lis3lv02d snd_timer snd_seq_device input_polldev ttm led_class wl(P) drm_kms_helper drm intel_ips snd psmouse lib80211 intel_agp serio_raw video output i2c_algo_bit lp soundcore snd_page_alloc parport ahci libahci r8169 mii
[18446744059.501985] 
[18446744059.501989] Pid: 927, comm: ips-adjust Tainted: P            2.6.35-17-generic #23-Ubuntu 1486/HP TouchSmart tm2 Notebook PC
[18446744059.501992] RIP: 0010:[<0000000000000000>]  [<(null)>] (null)
[18446744059.501995] RSP: 0018:ffff880143131e78  EFLAGS: 00010202
[18446744059.501997] RAX: 0000000000000286 RBX: ffff88014e466900 RCX: 0000000000000064
[18446744059.501999] RDX: 000000000000ffff RSI: 0000000000000286 RDI: 0000000000000286
[18446744059.502001] RBP: ffff880143131ee0 R08: 0000000000000000 R09: 0000000000000000
[18446744059.502004] R10: 00000000ffffffff R11: 0000000000000001 R12: ffff88014e466940
[18446744059.502006] R13: 0000000000000000 R14: 0000000000002328 R15: 0000000000000000
[18446744059.502009] FS:  0000000000000000(0000) GS:ffff880001e00000(0000) knlGS:0000000000000000
[18446744059.502011] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[18446744059.502013] CR2: 0000000000000000 CR3: 0000000001a2a000 CR4: 00000000000006f0
[18446744059.502016] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[18446744059.502018] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[18446744059.502021] Process ips-adjust (pid: 927, threadinfo ffff880143130000, task ffff880142bc96e0)
[18446744059.502022] Stack:
[18446744059.502024]  ffffffffa010ec03 ffff880143131fd8 ffff880143131eac ffff880143e496e0
[18446744059.502027] <0> ffff880100000c16 0000000000000286 ffff880143e53be8 ffff880143131ee0
[18446744059.502030] <0> ffff880143e53bc8 ffff880143131ef8 ffffffffa010e8c0 ffff88014e466900
[18446744059.502034] Call Trace:
[18446744059.502044]  [<ffffffffa010ec03>] ? ips_adjust+0x343/0x490 [intel_ips]
[18446744059.502049]  [<ffffffffa010e8c0>] ? ips_adjust+0x0/0x490 [intel_ips]
[18446744059.502055]  [<ffffffff8107dfb6>] kthread+0x96/0xa0
[18446744059.502060]  [<ffffffff8100aee4>] kernel_thread_helper+0x4/0x10
[18446744059.502063]  [<ffffffff8107df20>] ? kthread+0x0/0xa0
[18446744059.502066]  [<ffffffff8100aee0>] ? kernel_thread_helper+0x0/0x10
[18446744059.502068] Code:  Bad RIP value.
[18446744059.502072] RIP  [<(null)>] (null)
[18446744059.502074]  RSP <ffff880143131e78>
[18446744059.502076] CR2: 0000000000000000
[18446744059.502079] ---[ end trace ba757756fed5bd51 ]---