[   13.728335] BUG: unable to handle kernel NULL pointer dereference at 00000008
[   13.728342] IP: [<c0390ec5>] fb_release+0x25/0x60
[   13.728351] *pdpt = 0000000036d35001 *pde = 0000000000000000 
[   13.728355] Oops: 0000 [#1] SMP 
[   13.728357] last sysfs file: /sys/devices/virtual/vtconsole/vtcon1/uevent
[   13.728361] Modules linked in: snd_atiixp snd_ac97_codec ac97_bus snd_pcm snd_seq_midi radeon snd_rawmidi ttm snd_seq_midi_event drm_kms_helper snd_seq snd_timer snd_seq_device drm ppdev i2c_algo_bit ati_agp snd psmouse parport_pc soundcore snd_page_alloc i2c_piix4 k8temp serio_raw agpgart lp parport usbhid hid floppy r8169 mii pata_atiixp sata_sil
[   13.728382] 
[   13.728386] Pid: 276, comm: plymouthd Not tainted 2.6.35-12-generic-pae #17-Ubuntu MS-7168/MS-7168
[   13.728389] EIP: 0060:[<c0390ec5>] EFLAGS: 00210286 CPU: 0
[   13.728393] EIP is at fb_release+0x25/0x60
[   13.728395] EAX: 00000000 EBX: f7505000 ECX: c0390ea0 EDX: f311cd80
[   13.728398] ESI: f7505008 EDI: f71e5d48 EBP: f6e77f44 ESP: f6e77f3c
[   13.728400]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[   13.728403] Process plymouthd (pid: 276, ti=f6e76000 task=f6de4c20 task.ti=f6e76000)
[   13.728405] Stack:
[   13.728406]  f311cd80 00000008 f6e77f74 c0223504 00000003 00000000 00000000 f77fc060
[   13.728411] <0> f71e5d48 f75ebf80 f77fc060 f311cd80 f6e3ce00 00000000 f6e77f7c c022361d
[   13.728417] <0> f6e77f94 c021ff9c b6a46000 f6e3ce00 f311cd80 0000000b f6e77fac c0220045
[   13.728423] Call Trace:
[   13.728429]  [<c0223504>] ? __fput+0xe4/0x1e0
[   13.728432]  [<c022361d>] ? fput+0x1d/0x30
[   13.728436]  [<c021ff9c>] ? filp_close+0x4c/0x80
[   13.728439]  [<c0220045>] ? sys_close+0x75/0xc0
[   13.728443]  [<c010945f>] ? sysenter_do_call+0x12/0x28
[   13.728445] Code: bc 27 00 00 00 00 55 89 e5 83 ec 08 89 1c 24 89 74 24 04 0f 1f 44 00 00 8b 5a 70 8d 73 08 89 f0 e8 21 e6 25 00 8b 83 0c 03 00 00 <8b> 48 08 85 c9 74 0f ba 01 00 00 00 89 d8 ff d1 8b 83 0c 03 00 
[   13.728472] EIP: [<c0390ec5>] fb_release+0x25/0x60 SS:ESP 0068:f6e77f3c
[   13.728477] CR2: 0000000000000008
[   13.728479] ---[ end trace e2b89905e53ade9b ]---
[   15.304576] ata3.00: configured for UDMA/100
[   15.304587] ata3: EH complete
[   15.904994] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=0
[   15.998410] EXT4-fs (sda3): re-mounted. Opts: commit=0
[   23.888025] eth0: no IPv6 routers present
[   75.560026] Clocksource tsc unstable (delta = -272546602 ns)