Value get changed in function arrgument (fixed memory location)

dear friend,

i have function fSaveData. which is called at depth of 5

void fSaveData( uint8x_t* ucArray, uint16x_t uiStartAddress, uint16x_t uiTotal_Bytes,uint8x_t ucResetFlag)

{

uint16x_t aa;
uint16x_t bb;
uint8x_t cc;
uint16x_t dd;
uint16x_t ee;
uint16x_t ee;
uint16x_t ff;
uint8_t gg[15]={0};

// code
//code

// withing that function i am calling one more function, depth of 6
fWrite2eeprom(ucArray,uiStartAddress,ucCummBytes,uiIndex,ucResetFlag);
//

}

as per http://www.keil.com/support/man/docs/c51/c51_le_funcparmsstack.htm
c51 had given fixed addred to each variable. but when i called function fWrite2eeprom
then my variable of function fSaveData get courrupts
this is happning frequently.

this may be case of stack overflow. but in every courrption i got same value in XRAM fixed location.

please help me on this! please ask if my question is not clear

yogesh