2.5.59 qlogicisp.c oops

Unable to handle kernel NULL pointer dereference a

t virtual address 00000150
printing eip:
c0214f98
*pde = 0073c001

Oops: 0002
CPU:    2
EIP:    0060:[<c0214f98>]    Not tainted
EFLAGS: 00010046                        

EIP is at isp1020_intr_handler+0x248/0x2f8
eax: 00000000 ebx: d802e140 ecx: 00000000 edx: 00000000
esi: d8065400 edi: 00000002 ebp: d8d99f04 esp: d8d99ee0
ds: 007b es: 007b ss: 0068
Process swapper (pid: 0, threadinfo=d8d98000 task=d8d9cc80)

Stack: d802e140 d8065410 d8065400 00000002 00000006 00000006 d8065498 d8065400 
       00000000 d8d99f24 c0214d27 00000013 d8065400 d8d99f74 d8defec0 24000001 
       00000013 d8d99f44 c010b034 00000013 d8065400 d8d99f74 c0307a70 c0307a60 
Call Trace:                                                                    
 [<c0214d27>] do_isp1020_intr_handler+0x4b/0x74
 [<c010b034>] handle_IRQ_event+0x28/0x50       
 [<c010b2bd>] do_IRQ+0xf1/0x194         
 [<c0106f04>] default_idle+0x0/0x34
 [<c01099fc>] common_interrupt+0x18/0x20
 [<c0106f04>] default_idle+0x0/0x34
 [<c0106f30>] default_idle+0x2c/0x34
 [<c0106fc6>] cpu_idle+0x3a/0x48
 [<c011fd18>] printk+0x1b0/0x1f4
 
Code: 89 82 50 01 00 00 83 c4 04 eb 0d 8b 4d fc c7 81 50 01 00 00
 <0>Kernel panic: Aiee, killing interrupt handler!

In interrupt handler - not syncing