Hi , I would appreciate if you could me point to a document or explain , how 32 bit programs are recognised and handled in the 64 bit Linux Kernel on X86_64 ( Opteron ) or IA_64 ( Itanium ) processors . How & when is the processor mode switched for the 32 bit binaries ? Which part in the kernel sources deals with this ? Also what would be the packages required to run the 32 bit programs on these 64 bit architechtures ? Kindly reply directly to me as I'am not subscribed to this list . Cheers ! ________________________________________________________________________ Yahoo! India Insurance Special: Be informed on the best policies, services, tools and more. Go to: http://in.insurance.yahoo.com/licspecial/index.html -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/