After a little reading around, I think this might be something to do with the acer bios: apparently it acquires all of the mtrr registers for itself (I've set the mtrr cleanup kernel option and now there are only 4 in /proc/mtrr)
After a little reading around, I think this might be something to do with the acer bios: apparently it acquires all of the mtrr registers for itself (I've set the mtrr cleanup kernel option and now there are only 4 in /proc/mtrr)