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TDA4VM: Custom Kernel Error

Part Number: TDA4VM

Dear all,

I 'm working on a custom target kernel on C66, and it works fine in the PC Emulation mode. 

When I test it on the board, errors occur like this:

app_tidl: Init ... Done.
app_tidl: Creating graph ... 
app_tidl: Creating graph ... Done.
app_tidl: Verifying graph ... 
0.308590 s:  VX_ZONE_ERROR:[ownContextSendCmd:553] Command [   43.572957] ion_buffer_destroy: buffer still mapped in the kernel
ack message returned failure cmd_status: -7
0.308607 s:  VX_ZONE_ERROR:[ownNodeKernelInit:486] Target kernel, TIVX_CMD_NODE_CREATE failed
0.308630 s:  VX_ZONE_ERROR:[ownGraphNodeKernelInit:583] kernel init for node 1, kernel *** ... failed !!!
0.308636 s:  VX_ZONE_ERROR:[vxVerifyGraph:2016] Node kernel init failed
0.308641 s:  VX_ZONE_ERROR:[vxVerifyGraph:2076] Graph verify failed
app_tidl: ERROR: Verifying graph ... Failed !!!
app_tidl: Delete ... 
app_tidl: Delete ... Done.
app_tidl: De-init ... 

It looks like something goes wrong with the kernel create function. I add debug info  VX_PRINT(VX_ZONE_INFO, "create node\n") at the beginning of the create function and it didn't print out. Seems like the app didn't step in that function at all.

Please help me.