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problem with memory allcoation


Hi Listers,
	I am facing a peculiar problem with respent to allocating memory. I
am creating a memory pool using the following code 

>   static cyg_mempool_var memobj;
>   static cyg_uint8 mem[4096];
>   cyg_mempool_var_create(mem, 4096, &(rtosPool.memHandle), &memobj);

	Then i start a thread (allocate the stack memory from the above
pool). In the thread i am allocating memory to a variable. the contents of
that variable are getting corrupted the moment i assign it a value. for
example if i do 
       *a = 10;
        	then 1 or 2 instruction later when i see the value of *a, it
is some corrupted data. I have no clue what is happening, who is accessing
the contents of the allocated memory ? 
	Any help regarding this will be appreciated.

Rgds,
Mayank

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