you need to provide a valid hardware address to the IPMC, this may be why the IPMC is not working as expected. The bit HA7 is the parity bit (odd parity), so an address od 0xFF is not valid. Try tying at least one of the other HA bits to ground. You can see an error message relating to this in the boot log you sent:
: Invalid hardware address: 0xFF
I also see some message relating to an RTM, is this code that you added? If so, I would try disabling that code to see if it interferes with the operation outside the shelf.