7d6e7c5672
SUN4 as well. The data and stack limits are definitely needed, otherwise MI code will try and map shared libraries in the 4/4c MMU hole. The UBC limits may not be necessary, but SUN4 machines are unlikely to have much larger amounts of memory than this caters for (64Mb). SUN4 machines will now boot userland with this change. Thanks to martin@, mrg@ and uwe@ for hints while debugging this.