error: size of variable is too large

["Sivaprasad.pv" <sivaprasad.pv@xxxxxxxxxxxxxxxxxx>]

Hi all,

while compiling our application using cross compiler,following error was 
occurred.

error: size of variable `a_var' is too large

where 'a_var' is structure variable(It is around 2MB of size).

I want to know Is there any limit for variable size.Is it depend on 
particular target to which gcc is ported.
please help me in order to resolve this issue.

--P.V.Siva Prasad