你好，目前我使用dm365mm-module_01_00_03模块总是报错，报错信息如下：
Unable to handle kernel NULL pointer dereference at virtual address 00000064
pgd = c0004000
[00000064] *pgd=00000000
Internal error: Oops: 17 [#1] PREEMPT
last sysfs file: /sys/module/dm365_imp/parameters/oper_mode
Modules linked in: osa_kermod edmak irqk cmemk
CPU: 0 Not tainted (2.6.32.17-davinci1 #82)
PC is at dma_irq_handler+0x40/0x200
LR is at handle_IRQ_event+0x44/0x114
pc : [<c00353a8>] lr : [<c006d188>] psr: 20000013
sp : c03abec0 ip : c03abef8 fp : c03abef4
r10: 80021978 r9 : c03aed70 r8 : 00000001
r7 : 00000010 r6 : 00000000 r5 : 00000000 r4 : c1019c40
r3 : c03d4ec4 r2 : 00000000 r1 : c03aed70 r0 : 00000010
Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
Control: 0005317f Table: 81934000 DAC: 00000017
Process swapper (pid: 0, stack limit = 0xc03aa270)
Stack: (0xc03abec0 to 0xc03ac000)