Symbol address in instructions is different from that in symbol table

[yan yan <clouds.yan@xxxxxxxxx>]

Hi, all:

    I'm new to mips.When I disassembled a linux vmlinux, I found
variable address referenced in instructions have a constant difference
64K respect to that in symbol table.
    For example, instruction/s want to reference a variable and
construct its address XXX3YYYY by lui and addui，but in system map, its
address is  actually XXX2YYYY. What happens?

Thanks