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CMEMK Error:GETPHYS:Failed to convert virtual 0x43494000 to physical

Hello .

I am wangjian ,does anybody  miss the problem below?

CMEMK Error:get_phys:Unable to find phys addr for 0x4394000
CMEMK Error:ger_phys:get_user_pages() failed:-14
CMEMK Error:GETPHYS:Failed to convert virtual 0x43494000 to physical.
It is appeared  when my program run for a time ,the long time is about one hour,and the short time is about ten minutes ,it is uncertain.I
I have changed the "loadmodules.sh" like this:CMEM_MODPARAMS="phys_start  = 0x87800000 phys_end = 0x88000000,pools = 20 x4096,10x131072,2x1048576,2x4194304,2x5242880,1x8294400,1x8294400".
but the problem is already exist.  and my board is TI official's  EVM-DM365,And my DVSDK version is 4.0
if anybody has missed the problem ,please answer me .
thank you very much