On Sat, Aug 25, 2007 at 07:25:53AM -0700, hong zhang wrote: > Marc, > > How do I make sure my kernel supports old ABI? Have you looked at the .config file? CONFIG_AEABI CONFIG_OABI_COMPAT IIRC, the problem isn't just the kernel, but the other user mode programs. You generally cannot run ABI with EABI in user space. The libraries for one are not compatible with libraries for the other.