NULL pointer dereference at virtual address 00000004

printing eip:

c01330ec	
*pde=00000000
Oops=0002
CPU:    0
EIP:    0010:[<c01330ec>] Not tainted
EFLAGS: 00010046

eax: 00000000  ebx: c100001c  ecx: c112b8ac  edx: 00000000
esi: 00001000  ebp: c112b8d8  esp: c3abde14
ds:  0018  es: 0018  ss: 0018 

Process perl (pid: 17110, stackpage=c3abd000)

Stack:  c112b8ac  06cec067  001fc000  cb286bc4  
	000167f0  00001000  c112b8ac  c02f24fc
	c102c01c  c02f2538  00000212  ffffffff
	00002e76  c0133a0a  c0133e82  c112b8ac
        c0126ff2  c112b8ac  00000180  000001fc
        c0126dbd  06cec067  c49f8d80  c15e93a0

Call Trace: 	[<c0133a0a>]  [<c0133e82>]  [<c01267f2>]  [<c0126dbd>]
		[<c012985f>]  [<c0110bdb>]  [<c011ca95>]  [<c0121eec>]		
		[<c01088ef>]  [<c0116ee4>]  [<c01285b0>]  [<c0108bc4>]
		[<c0108af4>]  

Code: 	89 50 04 89 02  c7 45 00 00 00 
	00 00 c7 45 04  00 00 00 00 8b