Someone

Unable to handle kernel NULL pointer dereference at virtual address 00000120
 printing eip:
c02a6968
*pde = 00000000
Oops: 0000 [#1]
PREEMPT
Modules linked in: nvidia fuse quickcam lirc_sir lirc_dev bcm4400 ndiswrapper
CPU:    0
EIP:    0060:[<c02a6968>]    Tainted: P      VLI
EFLAGS: 00010246   (2.6.16-gentoo-r13 #4)
EIP is at cdrom_lockdoor+0x48/0x150
eax: 00000000   ebx: 00000000   ecx: c02a8dc0   edx: c054b8b8
esi: e2ca1eb4   edi: 00000000   ebp: c054b8b8   esp: e2ca1dfc
ds: 007b   es: 007b   ss: 0068
Process hdparm (pid: 13811, threadinfo=e2ca0000 task=e7effa70)
Stack: <0>00000000 00000000 00000000 00000000 c02a027a 0054b824 0000c080 c054b824
       00000704 c0293e49 c054b824 c054f760 00000704 ffffffff e4c9ce40 c054b8b8
       0000032a e4c9cea4 00000000 00000000 0000000e 00000000 e4c9cf44 c020733b
Call Trace:
 [<c02a027a>] ide_release_iomio_dma+0x3a/0xb0
 [<c0293e49>] ide_unregister+0x209/0x330
 [<c020733b>] radix_tree_gang_lookup+0x5b/0x80
 [<c0141987>] find_get_pages+0x37/0x80
 [<c014a14b>] pagevec_lookup+0x2b/0x40
 [<c014a639>] invalidate_mapping_pages+0x59/0x110
 [<c01faa76>] blkdev_driver_ioctl+0x66/0xb0
 [<c02a7aa0>] ide_cdrom_lock_door+0x20/0x30
 [<c02e43dd>] cdrom_release+0x7d/0x140
 [<c02a8df6>] idecd_release+0x36/0x60
 [<c016bd16>] blkdev_put+0xc6/0x160
 [<c016377a>] __fput+0x15a/0x1a0
 [<c0161b96>] filp_close+0x46/0x90
 [<c0161c48>] sys_close+0x68/0xc0
 [<c01030c5>] syscall_call+0x7/0xb
Code: 24 04 01 00 00 8b ac 24 0c 01 00 00 85 f6 89 9c 24 f8 00 00 00 89 bc 24 00 01 00 00 8b bc 24 10 01 00 00 0f 44 f0 8b 45 1c 31 db <f6> 80 20 01 00 00 02 74 45 8b 45 1c 83 e7 01 8d 0c bd 00 00 00