Doug Bell was having trouble with serial out on epia-sp.
I tracked this problem to the cache. If the early_mtrr_init() call isn't done, the problem goes away. Within early_mtrr_init() if the call to enable_cache() is commented out, the problem goes away. Enabling the cache on the c3 Nehemia is causing strange behaviour.
This mailing list is pretty much dead as regards actual help, NXTV is working on epia-sp support and we'll be contributing our results back to the project. Some support would be in order. I/NXTV contributed plenty years ago to the epia-m support for V1, as many old timers will attest.
-Dave