I did manage to get a clean build that board_status wouldn't complain about being dirty. The problem was I couldn't clone board_status properly, have a crappy isp. I can probably clone it from some where else tommorrow, or else I'll have to wait a week.
After using git clean I was able to actually build crossgcc-i386 on the 32bit debian stretch I've got setup with the p2-99. board_status didn't like the 64bit utils in the build directory after I copied everything over from the 64bit machine. Too bad I don't have a pata/sata adapter or use NFS, that would have made it easy to chroot into and build with a faster machine.
I tried your cbmem patch https://review.coreboot.org/c/22228/ applied with git fetch https://review.coreboot.org/coreboot refs/changes/28/22228/1 && git checkout FETCH_HEAD.
I've got a serial capture and the log of cbmem -c attached. cbmem -t fails with "Could not open /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq: No such file or directory".