Dec 12 13:25:58 osiris kernel: [ 6990.283922] BUG: unable to handle kernel NULL pointer dereference at   (null)
Dec 12 13:25:58 osiris kernel: [ 6990.284173] IP: [<  (null)>]   (null)
Dec 12 13:25:58 osiris kernel: [ 6990.284261] *pdpt = 00000000344c1001 *pde = 0000000000000000 
Dec 12 13:25:58 osiris kernel: [ 6990.284402] Oops: 0010 [#1] SMP 
Dec 12 13:25:58 osiris kernel: [ 6990.284520] Modules linked in: bnep rfcomm bluetooth vboxnetadp vboxnetflt vboxdrv snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus ppdev binfmt_misc snd_hda_codec_realtek snd_usb_audio uvcvideo snd_hda_intel snd_hda_codec snd_usbmidi_lib snd_hwdep videodev snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event radeon snd_seq snd_timer snd_seq_device psmouse snd serio_raw ttm i2c_piix4 soundcore snd_page_alloc drm_kms_helper drm i2c_algo_bit parport_pc shpchp ati_agp lp parport 8139too usb_storage uas 8139cp firewire_ohci firewire_core crc_itu_t aic7xxx sata_sil floppy pata_atiixp
Dec 12 13:25:58 osiris kernel: [ 6990.286226] 
Dec 12 13:25:58 osiris kernel: [ 6990.286226] Pid: 1056, comm: Xorg Not tainted 3.0.0-14-generic-pae #23-Ubuntu HP Pavilion 061 RA918AA-ABU t3510.uk/Asterope
Dec 12 13:25:58 osiris kernel: [ 6990.286226] EIP: 0060:[<00000000>] EFLAGS: 00013202 CPU: 0
Dec 12 13:25:58 osiris kernel: [ 6990.286226] EIP is at 0x0
Dec 12 13:25:58 osiris kernel: [ 6990.286226] EAX: edcbf200 EBX: edcbf200 ECX: c15c5380 EDX: edcbf3cc
Dec 12 13:25:58 osiris kernel: [ 6990.286226] ESI: 00000000 EDI: 00000003 EBP: ee6fbf54 ESP: ee6fbf3c
Dec 12 13:25:58 osiris kernel: [ 6990.286226]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Dec 12 13:25:58 osiris kernel: [ 6990.286226] Process Xorg (pid: 1056, ti=ee6fa000 task=ee741980 task.ti=ee6fa000)
Dec 12 13:25:58 osiris kernel: [ 6990.286226] Stack:
Dec 12 13:25:58 osiris kernel: [ 6990.286226]  c14df949 00000002 edcbf3cc f2b81500 00000002 09cb63b0 ee6fbf6c c144fdf2
Dec 12 13:25:58 osiris kernel: [ 6990.286226]  00000000 00000000 0000000d 00000008 ee6fbfac c1450454 00000019 00000002
Dec 12 13:25:58 osiris kernel: [ 6990.286226]  c105542c f45ce500 099d3de8 00000004 00000019 00000002 ee6fbf98 00000000
Dec 12 13:25:58 osiris kernel: [ 6990.286226] Call Trace:
Dec 12 13:25:58 osiris kernel: [ 6990.286226]  [<c14df949>] ? unix_shutdown+0x69/0x140
Dec 12 13:25:58 osiris kernel: [ 6990.286226]  [<c144fdf2>] sys_shutdown+0x62/0x70
Dec 12 13:25:58 osiris kernel: [ 6990.286226]  [<c1450454>] sys_socketcall+0x1f4/0x2c0
Dec 12 13:25:58 osiris kernel: [ 6990.286226]  [<c105542c>] ? sys_setitimer+0x4c/0xc0
Dec 12 13:25:58 osiris kernel: [ 6990.286226]  [<c155dc1f>] sysenter_do_call+0x12/0x28
Dec 12 13:25:58 osiris kernel: [ 6990.286226] Code:  Bad EIP value.
Dec 12 13:25:58 osiris kernel: [ 6990.286226] EIP: [<00000000>] 0x0 SS:ESP 0068:ee6fbf3c
Dec 12 13:25:58 osiris kernel: [ 6990.286226] CR2: 0000000000000000
Dec 12 13:25:58 osiris kernel: [ 6990.301503] ---[ end trace b38a90fed3f2f6ff ]---
Dec 12 13:25:58 osiris gnome-session[1996]: Gdk-WARNING: gnome-session: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.#012
Dec 12 13:25:59 osiris acpid: client 1056[0:0] has disconnected
Dec 12 13:25:59 osiris acpid: client connected from 3475[0:0]
Dec 12 13:25:59 osiris acpid: 1 client rule loaded