我在omapl138上开发的dsplink，在davinci-psp-sdk-0.3.20.00.06下可以实现dsplink的例程readwrite，但是在davinci-psp-sdk-0.3.22.00.02下实现readwrite出错，错误如下：
root@da850-omapl138-evm:/usr/dsplinktestaddconfigfor22.00.02# ./readwritegpp rea
dwrite.out 0xC3F5B000 1024 1000
============= Sample Application : READWRITE ==========
Entered RDWR_Create ()
copy_from_user call failed 24
PROC_setup failed. Status: [0x80008008]
Leaving RDWR_Create ()
Create phase failed. Status: [0x80008008]
Entered RDWR_Delete ()
Assertion failed (IS_VALID_MSGQ (msgqQueue)). File : msgq.c Line : 478
MSGQ_release () failed. Status = [0x8000800b]
MSGQ_transportClose () failed. Status = [0x80008002]
Assertion failed (IS_VALID_MSGQ (msgqQueue)). File : msgq.c Line : 329
Leaving RDWR_Delete ()
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怎么回事？请大家帮帮忙
