My program doesn't execute automatically!

[chenggh04 at st.lzu.edu.cn]

Hi,everybody:
     When I added an executable statements in the /etc/init.d/rcS it couldn't run
automatically. Later I find if the program has loop statments it doesn't execute
automatically and it must run manually. In the system the default bash is hush
because the ash doesn't work correctly. Please help me!
                                                       Cheng Guanghui