[1266874884.442825] BUG: unable to handle kernel NULL pointer dereference at (null)
[1266874884.442835] IP: [<(null)>] (null)
[1266874884.442840] *pdpt = 0000000033ff0001 *pde = 0000000135e68067 
[1266874884.442847] Oops: 0000 [#1] SMP 
[1266874884.442852] last sysfs file: /sys/devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda1/stat
[1266874884.442858] Modules linked in: aes_i586 aes_generic binfmt_misc vboxdrv ip6table_filter ip6_tables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp kvm_intel kvm parport_pc ppdev snd_hda_codec_atihdmi snd_hda_codec_realtek joydev arc4 snd_hda_intel snd_hda_codec snd_hwdep radeon i915 snd_pcm ttm ath9k snd_seq_midi snd_rawmidi ath9k_common ath9k_hw ath snd_seq_midi_event mac80211 snd_seq snd_timer drm_kms_helper snd_seq_device uvcvideo cfg80211 videodev drm v4l1_compat intel_agp snd led_class psmouse serio_raw soundcore video intel_ips agpgart i2c_algo_bit snd_page_alloc output lp parport ahci libahci atl1c
[1266874884.442938] 
[1266874884.442944] Pid: 611, comm: ips-adjust Not tainted 2.6.35-21-generic-pae #31-Ubuntu ZR7B/Aspire 5820TG
[1266874884.442949] EIP: 0060:[<00000000>] EFLAGS: 00010202 CPU: 0
[1266874884.442955] EIP is at 0x0
[1266874884.442959] EAX: 00000292 EBX: f3e25100 ECX: 00002328 EDX: 00000292
[1266874884.442963] ESI: f3e2512c EDI: 00000000 EBP: f2f21fbc ESP: f2f21f78
[1266874884.442967]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[1266874884.442971] Process ips-adjust (pid: 611, ti=f2f20000 task=f2c19960 task.ti=f2f20000)
[1266874884.442975] Stack:
[1266874884.442977]  f85a2b93 c0907480 c0907480 f0c78000 00000003 c0907480 c0907480 f2f21fac
[1266874884.442987] <0> 0000005a f2cac000 00907480 00000b1f f2c1ffff 00000000 f3e87dec f3e25100
[1266874884.442996] <0> f85a2900 f2f21fe4 c016dcd4 00000000 00000000 00000000 f2f21fd0 f2f21fd0
[1266874884.443007] Call Trace:
[1266874884.443018]  [<f85a2b93>] ? ips_adjust+0x293/0x400 [intel_ips]
[1266874884.443026]  [<f85a2900>] ? ips_adjust+0x0/0x400 [intel_ips]
[1266874884.443036]  [<c016dcd4>] ? kthread+0x74/0x80
[1266874884.443041]  [<c016dc60>] ? kthread+0x0/0x80
[1266874884.443048]  [<c010993e>] ? kernel_thread_helper+0x6/0x10
[1266874884.443051] Code:  Bad EIP value.
[1266874884.443057] EIP: [<00000000>] 0x0 SS:ESP 0068:f2f21f78
[1266874884.443064] CR2: 0000000000000000
[1266874884.443069] ---[ end trace 8644b9d989982028 ]---