hang on "booting the kernel ...."

 
  Hello!
        When I boot the kerenl which was compiled by myself on the ML403,but it hang on "booting the kernel ",the prompt information is as follow:
    Linux
    uncompressing the kernel ....done
    Now booting the kernel
and then there is nothing .
    The linux code I used is linux-2.6-xlix,the version is 2.6.22.And I use the uartlite IP.And use the XMD to download the kernel,the command is dow zImage.elf,con.
    I don't know what the problem is.Can you give me a help? Thanks you!