phyAddress = pte_page(*pte) ;
...
where virtAddress is the address i passed from application so every time
phyAddress i got is start with somthing like (C1081234) which is actually
a kernel address space. why it is like so.

I don't think pte_page does what you think it does:

#define pte_page(x)     (mem_map+((unsigned long)(((x).pte_low

quoted

PAGE_SHIFT))))

seems to return the address of the struct page for that physaddr,
not the physaddr itself. pte.pte_low might be closer to what you
want, but as has been pointed out already, that's not accurate if 
it's been swapped out.

M.

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