Out of variable data space

Hello,
I am using RCM2020/128k RAM/256k Flash, I am getting problem while compiling in non debug ,flash programming mode.
Error is " out of variable data space" in RS232.lib.

What may be the problem?

Change dataorg in rabbitbios.c, tried by moving code in xmem, tried seperate code & data space.

Please help…

Umesh