BUG: unable to handle kernel NULL pointer dereference at 00000034
IP: [<c01fa703>] clear_inode+0x73/0x100
*pde = bdb0b067 
Oops: 0000 [#1] SMP 
last sysfs file: /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
Modules linked in: binfmt_misc openafs(P) ipt_LOG xt_limit xt_tcpudp xt_state ipt_addrtype snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_usb_audio snd_usb_lib ip6table_filter ip6_tables snd_pcm_oss snd_mixer_oss snd_seq_dummy snd_pcm nf_nat_irc snd_seq_oss nf_conntrack_irc snd_seq_midi nf_nat_ftp nf_nat snd_seq_midi_event nf_conntrack_ipv4 snd_seq snd_rawmidi nf_defrag_ipv4 snd_timer snd_hwdep nf_conntrack_ftp snd_seq_device nf_conntrack gspca_pac7311 nvidia(P) psmouse iptable_filter gspca_main snd ppdev ip_tables soundcore lp serio_raw videodev v4l1_compat snd_page_alloc parport_pc x_tables parport fbcon tileblit font bitblit softcursor vesafb floppy r8169 mii intel_agp agpgart

Pid: 2822, comm: afsd Tainted: P           (2.6.31-14-generic #48-Ubuntu) OEM
EIP: 0060:[<c01fa703>] EFLAGS: 00010246 CPU: 0
EIP is at clear_inode+0x73/0x100
EAX: 00000000 EBX: e7890000 ECX: 00000000 EDX: 00000000
ESI: c0894740 EDI: 00000000 EBP: e3717efc ESP: e3717ef4
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process afsd (pid: 2822, ti=e3716000 task=e3568c90 task.ti=e3716000)
Stack:
 c01cb4d4 e7890000 e3717f10 c01fad62 e7890000 e3717f7c e7890000 e3717f18
<0> c01faf8f e3717f24 c01fa011 e7890000 e3717f4c f8d45706 00000296 e930e5b0
<0> e3717f48 c015c50c 00000000 00000000 00000001 e7890000 e3717f8c f8d45afd
Call Trace:
 [<c01cb4d4>] ? vmtruncate+0x174/0x180
 [<c01fad62>] ? generic_forget_inode+0x112/0x1d0
 [<c01faf8f>] ? generic_drop_inode+0xf/0x30
 [<c01fa011>] ? iput+0x41/0x60
 [<f8d45706>] ? afs_FlushVCache+0x356/0x460 [openafs]
 [<c015c50c>] ? remove_wait_queue+0x3c/0x50
 [<f8d45afd>] ? afs_ShakeLooseVCaches+0x2ed/0x3f0 [openafs]
 [<f8d2edfc>] ? afs_Daemon+0x1dc/0x540 [openafs]
 [<f8d83767>] ? afsd_thread+0x2b7/0x690 [openafs]
 [<f8d834b0>] ? afsd_thread+0x0/0x690 [openafs]
 [<c0104007>] ? kernel_thread_helper+0x7/0x10
Code: 83 40 01 00 00 b9 b0 9d 1f c0 ba 08 00 00 00 c7 04 24 02 00 00 00 e8 7d 4c 37 00 89 d8 e8 66 80 02 00 8b 83 a4 00 00 00 8b 40 20 <8b> 50 34 85 d2 74 04 89 d8 ff d2 0f b7 43 72 25 00 f0 00 00 3d 
EIP: [<c01fa703>] clear_inode+0x73/0x100 SS:ESP 0068:e3717ef4
CR2: 0000000000000034
---[ end trace 4ae0794c17a6cc35 ]---