Kexec for ARM: Is it expected to load old kernels?

[Brian Smucker]

Hi,

I use kexec to load a new 2.6.32 kernel and things work fine.  However 
when I try to use kexec to load a 2.6.21 kernel (ARM architecture) , it 
hangs after the "Bye!" message.

Is this to be expected?

If not, how can I debug things further?

Thanks,

Brian