Unable to handle kernel NULL pointer dereference at virtual address 00000000
 printing eip:
e1a833ae
*pde = 00000000
Oops: 0000 [#1]
PREEMPT 
Modules linked in: asus_acpi acpi_cpufreq freq_table pcmcia thermal fan button processor ac battery af_packet eth1394 ohci1394 yenta_socket rsrc_nonstatic pcmcia_core 8139too mii snd_intel8x0m snd_intel8x0 snd_ac97_codec i2c_i801 ehci_hcd usbhid uhci_hcd usbcore shpchp pci_hotplug mousedev joydev nls_utf8 ntfs cpuid sbp2 scsi_mod ieee1394 psmouse genrtc evdev
CPU:    0
EIP:    0060:[<e1a833ae>]    Not tainted VLI
EFLAGS: 00010203   (2.6.12-rc6r20050617d) 
EIP is at asus_hotk_get_info+0x1b7/0x7a4 [asus_acpi]
eax: 00000000   ebx: dd05ff38   ecx: 00000002   edx: 00000003
esi: 00000000   edi: e1a9aaf4   ebp: def70840   esp: dd05fefc
ds: 007b   es: 007b   ss: 0068
Process modprobe (pid: 3997, threadinfo=dd05e000 task=df5a0060)
Stack: 00000000 00000002 dff52700 c14dcf34 c0453898 c01cf6d0 c0453898 00000000 
       dd05ff20 00000000 df994100 dff52700 00000000 00005105 dd7b8000 00000010 
       def70840 dfe0b000 e1a9aeb4 dfe0b084 00000000 e1a839cf e1a83a63 dfe0b000 
Call Trace:
 [<c01cf6d0>] idr_get_new_above_int+0x90/0x130
 [<e1a839cf>] asus_hotk_check+0x34/0x35 [asus_acpi]
 [<e1a83a63>] asus_hotk_add+0x93/0x158 [asus_acpi]
 [<c0216436>] acpi_bus_driver_init+0x2c/0x8a
 [<c02164f9>] acpi_driver_attach+0x65/0xab
 [<e1a83b6a>] asus_acpi_init+0x42/0x6e [asus_acpi]
 [<c0137704>] sys_init_module+0x154/0x200
 [<c0103245>] syscall_call+0x7/0xb
Code: e1 e8 b7 7b 69 de 5e 5f a1 90 ce a9 e1 ba 03 00 00 00 bf f4 aa a9 e1 89 d1 c7 40 14 12 00 00 00 8b 45 08 89 c6 89 04 24 49 78 08 <ac> ae 75 08 84 c0 75 f5 31 c0 eb 04 19 c0 0c 01 85 c0 75 11 a1